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Diffstat (limited to 'tqtinterface/qt4/src/widgets/tqlistbox.cpp')
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diff --git a/tqtinterface/qt4/src/widgets/tqlistbox.cpp b/tqtinterface/qt4/src/widgets/tqlistbox.cpp deleted file mode 100644 index 331bf26..0000000 --- a/tqtinterface/qt4/src/widgets/tqlistbox.cpp +++ /dev/null @@ -1,4701 +0,0 @@ -/********************************************************************** -** -** Implementation of TQListBox widget class -** -** Created : 941121 -** -** Copyright (C) 2010 Timothy Pearson and (C) 1992-2008 Trolltech ASA. -** -** This file is part of the widgets module of the TQt GUI Toolkit. -** -** This file may be used under the terms of the GNU General -** Public License versions 2.0 or 3.0 as published by the Free -** Software Foundation and appearing in the files LICENSE.GPL2 -** and LICENSE.GPL3 included in the packaging of this file. -** Alternatively you may (at your option) use any later version -** of the GNU General Public License if such license has been -** publicly approved by Trolltech ASA (or its successors, if any) -** and the KDE Free TQt Foundation. -** -** Please review the following information to ensure GNU General -** Public Licensing requirements will be met: -** http://trolltech.com/products/qt/licenses/licensing/opensource/. -** If you are unsure which license is appropriate for your use, please -** review the following information: -** http://trolltech.com/products/qt/licenses/licensing/licensingoverview -** or contact the sales department at sales@trolltech.com. -** -** This file may be used under the terms of the Q Public License as -** defined by Trolltech ASA and appearing in the file LICENSE.TQPL -** included in the packaging of this file. Licensees holding valid TQt -** Commercial licenses may use this file in accordance with the TQt -** Commercial License Agreement provided with the Software. -** -** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, -** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted -** herein. -** -**********************************************************************/ - -#include "tqglobal.h" -#if defined(TQ_CC_BOR) -// needed for qsort() because of a std namespace problem on Borland -#include "tqplatformdefs.h" -#endif - -#include "tqlistbox.h" -#ifndef TQT_NO_LISTBOX -#include "tqmemarray.h" -#include "tqfontmetrics.h" -#include "tqpainter.h" -#include "tqstrlist.h" -#include "tqpixmap.h" -#include "tqapplication.h" -#include "tqptrdict.h" -#include "tqtimer.h" -#include "tqstringlist.h" -#include "tqstyle.h" -#include "tqpopupmenu.h" -#include "tqguardedptr.h" -#if defined(TQT_ACCESSIBILITY_SUPPORT) -#include "tqaccessible.h" -#endif - -#include <stdlib.h> - -class TQListBoxPrivate -{ -public: - TQListBoxPrivate( TQListBox *lb ): - head( 0 ), last( 0 ), cache( 0 ), cacheIndex( -1 ), current( 0 ), - highlighted( 0 ), tmpCurrent( 0 ), columnPos( 1 ), rowPos( 1 ), rowPosCache( 0 ), - columnPosOne( 0 ), rowMode( TQListBox::FixedNumber ), - columnMode( TQListBox::FixedNumber ), numRows( 1 ), numColumns( 1 ), - currentRow( 0 ), currentColumn( 0 ), - mousePressRow( -1 ), mousePressColumn( -1 ), - mouseMoveRow( -1 ), mouseMoveColumn( -1 ), mouseInternalPress( FALSE ), - scrollTimer( 0 ), updateTimer( 0 ), visibleTimer( 0 ), - selectionMode( TQListBox::Single ), - count( 0 ), - listBox( lb ), currInputString( TQString::null ), - rowModeWins( FALSE ), - ignoreMoves( FALSE ), - layoutDirty( TRUE ), - mustPaintAll( TRUE ), - dragging( FALSE ), - dirtyDrag ( FALSE ), - variableHeight( TRUE /* !!! ### FALSE */ ), - variableWidth( FALSE ), - inMenuMode( FALSE ) - {} - int findItemByName( int item, const TQString &text ); - ~TQListBoxPrivate(); - - TQListBoxItem * head, *last, *cache; - int cacheIndex; - TQListBoxItem * current, *highlighted, *tmpCurrent; - - TQMemArray<int> columnPos; - TQMemArray<int> rowPos; - int rowPosCache; - int columnPosOne; - - TQListBox::LayoutMode rowMode; - TQListBox::LayoutMode columnMode; - int numRows; - int numColumns; - - int currentRow; - int currentColumn; - int mousePressRow; - int mousePressColumn; - int mouseMoveRow; - int mouseMoveColumn; - bool mouseInternalPress; - - TQTimer * scrollTimer; - TQTimer * updateTimer; - TQTimer * visibleTimer; - TQTimer * resizeTimer; - - TQPoint scrollPos; - - TQListBox::SelectionMode selectionMode; - - int count; - - - TQListBox *listBox; - TQString currInputString; - TQTimer *inputTimer; - - TQListBoxItem *pressedItem, *selectAnchor; - - uint select :1; - uint pressedSelected :1; - uint rowModeWins :1; - uint ignoreMoves :1; - uint clearing :1; - uint layoutDirty :1; - uint mustPaintAll :1; - uint dragging :1; - uint dirtyDrag :1; - uint variableHeight :1; - uint variableWidth :1; - uint inMenuMode :1; - - TQRect *rubber; - TQPtrDict<bool> selectable; - - struct SortableItem { - TQListBoxItem *item; - }; -}; - - -TQListBoxPrivate::~TQListBoxPrivate() -{ - TQ_ASSERT( !head ); -} - - -/*! - \class TQListBoxItem tqlistbox.h - \brief The TQListBoxItem class is the base class of all list box items. - - This class is an abstract base class used for all list box items. - If you need to insert customized items into a TQListBox you must - inherit this class and reimplement paint(), height() and width(). - - \sa TQListBox -*/ - -/*! - \fn bool TQListBox::dragSelect() const - \internal -*/ - -/*! - \fn void TQListBox::setDragSelect( bool ) - \internal -*/ - -/*! - \fn bool TQListBox::autoScroll() const - \internal -*/ - -/*! - \fn void TQListBox::setAutoScroll( bool ) - \internal -*/ - -/*! - \fn bool TQListBox::autoScrollBar() const - - \obsolete - - Returns TRUE if vScrollBarMode() is \c Auto; otherwise returns - FALSE. -*/ - -/*! - \fn void TQListBox::setAutoScrollBar( bool enable ) - - \obsolete - - If \a enable is TRUE sets setVScrollBarMode() to \c AlwaysOn; - otherwise sets setVScrollBarMode() to \c AlwaysOff. -*/ - -/*! - \fn bool TQListBox::scrollBar() const - - \obsolete - - Returns FALSE if vScrollBarMode() is \c AlwaysOff; otherwise - returns TRUE. -*/ - -/*! - \fn void TQListBox::setScrollBar( bool enable ) - - \obsolete - - If \a enable is TRUE sets setVScrollBarMode() to \c AlwaysOn; - otherwise sets setVScrollBarMode() to \c AlwaysOff. -*/ - -/*! - \fn bool TQListBox::autoBottomScrollBar() const - - \obsolete - - Returns TRUE if hScrollBarMode() is \c Auto; otherwise returns - FALSE. -*/ - -/*! - \fn void TQListBox::setAutoBottomScrollBar( bool enable ) - - \obsolete - - If \a enable is TRUE sets setHScrollBarMode() to \c AlwaysOn; - otherwise sets setHScrollBarMode() to \c AlwaysOff. -*/ - -/*! - \fn bool TQListBox::bottomScrollBar() const - - \obsolete - - Returns FALSE if vScrollBarMode() is \c AlwaysOff; otherwise - returns TRUE. -*/ - -/*! - \fn void TQListBox::setBottomScrollBar( bool enable ) - - \obsolete - - If \a enable is TRUE sets setHScrollBarMode() to \c AlwaysOn; - otherwise sets setHScrollBarMode() to \c AlwaysOff. -*/ - -/*! - \fn bool TQListBox::smoothScrolling() const - \internal -*/ - -/*! - \fn void TQListBox::setSmoothScrolling( bool ) - \internal -*/ - -/*! - \fn bool TQListBox::autoUpdate() const - \internal -*/ - -/*! - \fn void TQListBox::setAutoUpdate( bool ) - \internal -*/ - -/*! - \fn void TQListBox::setFixedVisibleLines( int lines ) - \internal -*/ - -/*! - \obsolete - \fn int TQListBox::cellHeight( int i ) const - Returns the item height of item \a i. - \sa itemHeight() -*/ - -/*! - \obsolete - \overload int TQListBox::cellHeight() const - Returns the item height of the first item, item 0. - \sa itemHeight() -*/ - -/*! - \obsolete - \fn int TQListBox::cellWidth() const - Returns the maximum item width. - \sa maxItemWidth() -*/ - -/*! - \overload int TQListBox::cellWidth(int i) const - \internal -*/ - -/*! - \obsolete - \fn int TQListBox::numCols() const - Returns the number of columns. - \sa numColumns() -*/ - -/*! - \fn void TQListBox::updateCellWidth() - \internal -*/ - -/*! - \obsolete - \fn int TQListBox::totalWidth() const - Returns contentsWidth(). -*/ - -/*! - \obsolete - \fn int TQListBox::totalHeight() const - Returns contentsHeight(). -*/ - -/*! - \obsolete - \fn int TQListBox::findItem( int yPos ) const - Returns the index of the item a point (0, \a yPos). - \sa index() itemAt() -*/ - - -/*! - Constructs an empty list box item in the list box \a listbox. -*/ - -TQListBoxItem::TQListBoxItem( TQListBox* listbox ) -{ - lbox = listbox; - s = FALSE; - dirty = TRUE; - custom_highlight = FALSE; - p = n = 0; - - // just something that'll look noticeable in the debugger - x = y = 42; - - if (listbox) - listbox->insertItem( this ); -} - -/*! - Constructs an empty list box item in the list box \a listbox and - inserts it after the item \a after or at the beginning if \a after - is 0. -*/ - -TQListBoxItem::TQListBoxItem( TQListBox* listbox, TQListBoxItem *after ) -{ - lbox = listbox; - s = FALSE; - dirty = TRUE; - custom_highlight = FALSE; - p = n = 0; - - // just something that'll be noticeable in the debugger - x = y = 42; - - if (listbox) - listbox->insertItem( this, after ); -} - - -/*! - Destroys the list box item. -*/ - -TQListBoxItem::~TQListBoxItem() -{ - if ( lbox ) - lbox->takeItem( this ); -} - - -/*! - Defines whether the list box item is responsible for drawing - itself in a highlighted state when being selected. - - If \a b is FALSE (the default), the list box will draw some - default highlight indicator before calling paint(). - - \sa selected(), paint() -*/ -void TQListBoxItem::setCustomHighlighting( bool b ) -{ - custom_highlight = b; -} - -/*! - \fn void TQListBoxItem::paint( TQPainter *p ) - - Implement this function to draw your item. The painter, \a p, is - already open for painting. - - \sa height(), width() -*/ - -/*! - \fn int TQListBoxItem::width( const TQListBox* lb ) const - - Reimplement this function to return the width of your item. The \a - lb parameter is the same as listBox() and is provided for - convenience and compatibility. - - The default implementation returns - \l{TQApplication::globalStrut()}'s width. - - \sa paint(), height() -*/ -int TQListBoxItem::width(const TQListBox*) const -{ - return TQApplication::globalStrut().width(); -} - -/*! - \fn int TQListBoxItem::height( const TQListBox* lb ) const - - Implement this function to return the height of your item. The \a - lb parameter is the same as listBox() and is provided for - convenience and compatibility. - - The default implementation returns - \l{TQApplication::globalStrut()}'s height. - - \sa paint(), width() -*/ -int TQListBoxItem::height(const TQListBox*) const -{ - return TQApplication::globalStrut().height(); -} - - -/*! - Returns the text of the item. This text is also used for sorting. - - \sa setText() -*/ -TQString TQListBoxItem::text() const -{ - return txt; -} - -/*! - Returns the pixmap associated with the item, or 0 if there isn't - one. - - The default implementation returns 0. -*/ -const TQPixmap *TQListBoxItem::pixmap() const -{ - return 0; -} - -/*! - If \a b is TRUE (the default) then this item can be selected by - the user; otherwise this item cannot be selected by the user. - - \sa isSelectable() -*/ - -void TQListBoxItem::setSelectable( bool b ) -{ - if ( !listBox() ) - return; - bool *sel = listBox()->d->selectable.find( this ); - if ( !sel ) - listBox()->d->selectable.insert( this, new bool( b ) ); - else - listBox()->d->selectable.replace( this, new bool( b ) ); -} - -/*! - Returns TRUE if this item is selectable (the default); otherwise - returns FALSE. - - \sa setSelectable() -*/ - -bool TQListBoxItem::isSelectable() const -{ - if ( !listBox() ) - return TRUE; - bool *sel = listBox()->d->selectable.find( ( (TQListBoxItem*)this ) ); - if ( !sel ) - return TRUE; - else - return *sel; -} - -/*! - \fn void TQListBoxItem::setText( const TQString &text ) - - Sets the text of the TQListBoxItem to \a text. This \a text is also - used for sorting. The text is not shown unless explicitly drawn in - paint(). - - \sa text() -*/ - - -/*! - \class TQListBoxText tqlistbox.h - \brief The TQListBoxText class provides list box items that display text. - - \ingroup advanced - - The text is drawn in the widget's current font. If you need - several different fonts, you must implement your own subclass of - TQListBoxItem. - - \sa TQListBox, TQListBoxItem -*/ - - -/*! - Constructs a list box item in list box \a listbox showing the text - \a text. -*/ -TQListBoxText::TQListBoxText( TQListBox *listbox, const TQString &text ) - :TQListBoxItem( listbox ) -{ - setText( text ); -} - -/*! - Constructs a list box item showing the text \a text. -*/ - -TQListBoxText::TQListBoxText( const TQString &text ) - :TQListBoxItem() -{ - setText( text ); -} - -/*! - Constructs a list box item in list box \a listbox showing the text - \a text. The item is inserted after the item \a after, or at the - beginning if \a after is 0. -*/ - -TQListBoxText::TQListBoxText( TQListBox* listbox, const TQString &text, TQListBoxItem *after ) - : TQListBoxItem( listbox, after ) -{ - setText( text ); -} - -/*! - Destroys the item. -*/ - -TQListBoxText::~TQListBoxText() -{ -} - -/*! - Draws the text using \a painter. -*/ - -void TQListBoxText::paint( TQPainter *painter ) -{ - int itemHeight = height( listBox() ); - TQFontMetrics fm = painter->fontMetrics(); - int yPos = ( ( itemHeight - fm.height() ) / 2 ) + fm.ascent(); - painter->drawText( 3, yPos, text() ); -} - -/*! - Returns the height of a line of text in list box \a lb. - - \sa paint(), width() -*/ - -int TQListBoxText::height( const TQListBox* lb ) const -{ - int h = lb ? lb->fontMetrics().lineSpacing() + 2 : 0; - return TQMAX( h, TQApplication::globalStrut().height() ); -} - -/*! - Returns the width of this line in list box \a lb. - - \sa paint(), height() -*/ - -int TQListBoxText::width( const TQListBox* lb ) const -{ - int w = lb ? lb->fontMetrics().width( text() ) + 6 : 0; - return TQMAX( w, TQApplication::globalStrut().width() ); -} - -int TQListBoxText::RTTI = 1; - -/*! - \fn int TQListBoxText::rtti() const - - \reimp - - Returns 1. - - Make your derived classes return their own values for rtti(), and - you can distinguish between listbox items. You should use values - greater than 1000 preferably a large random number, to allow for - extensions to this class. -*/ - -int TQListBoxText::rtti() const -{ - return RTTI; -} - -/*! - \class TQListBoxPixmap tqlistbox.h - \brief The TQListBoxPixmap class provides list box items with a - pixmap and optional text. - - \ingroup advanced - - Items of this class are drawn with the pixmap on the left with the - optional text to the right of the pixmap. - - \sa TQListBox, TQListBoxItem -*/ - - -/*! - Constructs a new list box item in list box \a listbox showing the - pixmap \a pixmap. -*/ - -TQListBoxPixmap::TQListBoxPixmap( TQListBox* listbox, const TQPixmap &pixmap ) - : TQListBoxItem( listbox ) -{ - pm = pixmap; -} - -/*! - Constructs a new list box item showing the pixmap \a pixmap. -*/ - -TQListBoxPixmap::TQListBoxPixmap( const TQPixmap &pixmap ) - : TQListBoxItem() -{ - pm = pixmap; -} - -/*! - Constructs a new list box item in list box \a listbox showing the - pixmap \a pixmap. The item gets inserted after the item \a after, - or at the beginning if \a after is 0. -*/ - -TQListBoxPixmap::TQListBoxPixmap( TQListBox* listbox, const TQPixmap &pixmap, TQListBoxItem *after ) - : TQListBoxItem( listbox, after ) -{ - pm = pixmap; -} - - -/*! - Destroys the item. -*/ - -TQListBoxPixmap::~TQListBoxPixmap() -{ -} - - -/*! - Constructs a new list box item in list box \a listbox showing the - pixmap \a pix and the text \a text. -*/ -TQListBoxPixmap::TQListBoxPixmap( TQListBox* listbox, const TQPixmap &pix, const TQString& text) - : TQListBoxItem( listbox ) -{ - pm = pix; - setText( text ); -} - -/*! - Constructs a new list box item showing the pixmap \a pix and the - text to \a text. -*/ -TQListBoxPixmap::TQListBoxPixmap( const TQPixmap & pix, const TQString& text) - : TQListBoxItem() -{ - pm = pix; - setText( text ); -} - -/*! - Constructs a new list box item in list box \a listbox showing the - pixmap \a pix and the string \a text. The item gets inserted after - the item \a after, or at the beginning if \a after is 0. -*/ -TQListBoxPixmap::TQListBoxPixmap( TQListBox* listbox, const TQPixmap & pix, const TQString& text, - TQListBoxItem *after ) - : TQListBoxItem( listbox, after ) -{ - pm = pix; - setText( text ); -} - -/*! - \fn const TQPixmap *TQListBoxPixmap::pixmap() const - - Returns the pixmap associated with the item. -*/ - - -/*! - Draws the pixmap using \a painter. -*/ - -void TQListBoxPixmap::paint( TQPainter *painter ) -{ - int itemHeight = height( listBox() ); - int yPos; - - const TQPixmap *pm = pixmap(); - if ( pm && ! pm->isNull() ) { - yPos = ( itemHeight - pm->height() ) / 2; - painter->drawPixmap( 3, yPos, *pm); - } - - if ( !text().isEmpty() ) { - TQFontMetrics fm = painter->fontMetrics(); - yPos = ( ( itemHeight - fm.height() ) / 2 ) + fm.ascent(); - painter->drawText( pm->width() + 5, yPos, text() ); - } -} - -/*! - Returns the height of the pixmap in list box \a lb. - - \sa paint(), width() -*/ - -int TQListBoxPixmap::height( const TQListBox* lb ) const -{ - int h; - if ( text().isEmpty() ) - h = pm.height(); - else - h = TQMAX( pm.height(), lb->fontMetrics().lineSpacing() + 2 ); - return TQMAX( h, TQApplication::globalStrut().height() ); -} - -/*! - Returns the width of the pixmap plus some margin in list box \a lb. - - \sa paint(), height() -*/ - -int TQListBoxPixmap::width( const TQListBox* lb ) const -{ - if ( text().isEmpty() ) - return TQMAX( pm.width() + 6, TQApplication::globalStrut().width() ); - return TQMAX( pm.width() + lb->fontMetrics().width( text() ) + 6, - TQApplication::globalStrut().width() ); -} - -int TQListBoxPixmap::RTTI = 2; - -/*! - \fn int TQListBoxPixmap::rtti() const - - \reimp - - Returns 2. - - Make your derived classes return their own values for rtti(), and - you can distinguish between listbox items. You should use values - greater than 1000 preferably a large random number, to allow for - extensions to this class. -*/ - -int TQListBoxPixmap::rtti() const -{ - return RTTI; -} - -/*! - \class TQListBox tqlistbox.h - \brief The TQListBox widget provides a list of selectable, read-only items. - - \ingroup advanced - \mainclass - - This is typically a single-column list in which either no item or - one item is selected, but it can also be used in many other ways. - - TQListBox will add scroll bars as necessary, but it isn't intended - for \e really big lists. If you want more than a few thousand - items, it's probably better to use a different widget mainly - because the scroll bars won't provide very good navigation, but - also because TQListBox may become slow with huge lists. (See - TQListView and TQTable for possible alternatives.) - - There are a variety of selection modes described in the - TQListBox::SelectionMode documentation. The default is \c Single - selection mode, but you can change it using setSelectionMode(). - (setMultiSelection() is still provided for compatibility with TQt - 1.x. We recommend using setSelectionMode() in all code.) - - Because TQListBox offers multiple selection it must display - keyboard focus and selection state separately. Therefore there are - functions both to set the selection state of an item, i.e. - setSelected(), and to set which item displays keyboard focus, i.e. - setCurrentItem(). - - The list box normally arranges its items in a single column and - adds a vertical scroll bar if required. It is possible to have a - different fixed number of columns (setColumnMode()), or as many - columns as will fit in the list box's assigned screen space - (setColumnMode(FitToWidth)), or to have a fixed number of rows - (setRowMode()) or as many rows as will fit in the list box's - assigned screen space (setRowMode(FitToHeight)). In all these - cases TQListBox will add scroll bars, as appropriate, in at least - one direction. - - If multiple rows are used, each row can be as high as necessary - (the normal setting), or you can request that all items will have - the same height by calling setVariableHeight(FALSE). The same - applies to a column's width, see setVariableWidth(). - - The TQListBox's items are TQListBoxItem objects. TQListBox provides - methods to insert new items as strings, as pixmaps, and as - TQListBoxItem * (insertItem() with various arguments), and to - replace an existing item with a new string, pixmap or TQListBoxItem - (changeItem() with various arguments). You can also remove items - singly with removeItem() or clear() the entire list box. Note that - if you create a TQListBoxItem yourself and insert it, TQListBox - takes ownership of the item. - - You can also create a TQListBoxItem, such as TQListBoxText or - TQListBoxPixmap, with the list box as first parameter. The item - will then append itself. When you delete an item it is - automatically removed from the list box. - - The list of items can be arbitrarily large; TQListBox will add - scroll bars if necessary. TQListBox can display a single-column - (the common case) or multiple-columns, and offers both single and - multiple selection. TQListBox does not support multiple-column - items (but TQListView and TQTable do), or tree hierarchies (but - TQListView does). - - The list box items can be accessed both as TQListBoxItem objects - (recommended) and using integer indexes (the original TQListBox - implementation used an array of strings internally, and the API - still supports this mode of operation). Everything can be done - using the new objects, and most things can be done using indexes. - - Each item in a TQListBox contains a TQListBoxItem. One of the items - can be the current item. The currentChanged() signal and the - highlighted() signal are emitted when a new item becomes current, - e.g. because the user clicks on it or TQListBox::setCurrentItem() - is called. The selected() signal is emitted when the user - double-clicks on an item or presses Enter on the current item. - - If the user does not select anything, no Q_SIGNALS are emitted and - currentItem() returns -1. - - A list box has \c WheelFocus as a default focusPolicy(), i.e. it - can get keyboard focus by tabbing, clicking and through the use of - the mouse wheel. - - New items can be inserted using insertItem(), insertStrList() or - insertStringList(). inSort() is obsolete because this method is - quite inefficient. It's preferable to insert the items normally - and call sort() afterwards, or to insert a sorted TQStringList(). - - By default, vertical and horizontal scroll bars are added and - removed as necessary. setHScrollBarMode() and setVScrollBarMode() - can be used to change this policy. - - If you need to insert types other than strings and pixmaps, you - must define new classes which inherit TQListBoxItem. - - \warning The list box assumes ownership of all list box items and - will delete them when it does not need them any more. - - <img src=qlistbox-m.png> <img src=qlistbox-w.png> - - \sa TQListView TQComboBox TQButtonGroup - \link guibooks.html#fowler GUI Design Handbook: List Box (two - sections)\endlink -*/ - -/*! - \enum TQListBox::SelectionMode - - This enumerated type is used by TQListBox to indicate how it reacts - to selection by the user. - - \value Single When the user selects an item, any already-selected - item becomes unselected and the user cannot unselect the selected - item. This means that the user can never clear the selection, even - though the selection may be cleared by the application programmer - using TQListBox::clearSelection(). - - \value Multi When the user selects an item the selection status - of that item is toggled and the other items are left alone. Also, - multiple items can be selected by dragging the mouse while the - left mouse button is kept pressed. - - \value Extended When the user selects an item the selection is - cleared and the new item selected. However, if the user presses - the Ctrl key when clicking on an item, the clicked item gets - toggled and all other items are left untouched. And if the user - presses the Shift key while clicking on an item, all items between - the current item and the clicked item get selected or unselected, - depending on the state of the clicked item. Also, multiple items - can be selected by dragging the mouse while the left mouse button - is kept pressed. - - \value NoSelection Items cannot be selected. - - In other words, \c Single is a real single-selection list box, \c - Multi is a real multi-selection list box, \c Extended is a list - box in which users can select multiple items but usually want to - select either just one or a range of contiguous items, and \c - NoSelection is for a list box where the user can look but not - touch. -*/ - - -/*! - \enum TQListBox::LayoutMode - - This enum type is used to specify how TQListBox lays out its rows - and columns. - - \value FixedNumber There is a fixed number of rows (or columns). - - \value FitToWidth There are as many columns as will fit - on-screen. - - \value FitToHeight There are as many rows as will fit on-screen. - - \value Variable There are as many rows as are required by the - column mode. (Or as many columns as required by the row mode.) - - Example: When you call setRowMode( FitToHeight ), columnMode() - automatically becomes \c Variable to accommodate the row mode - you've set. -*/ - -/*! - \fn void TQListBox::onItem( TQListBoxItem *i ) - - This signal is emitted when the user moves the mouse cursor onto - an item, similar to the TQWidget::enterEvent() function. \a i is - the TQListBoxItem that the mouse has moved on. -*/ - -// ### bug here too? enter/leave event may noit considered. move the -// mouse out of the window and back in, to the same item - does it -// work? - -/*! - \fn void TQListBox::onViewport() - - This signal is emitted when the user moves the mouse cursor from - an item to an empty part of the list box. -*/ - - -/*! - Constructs a new empty list box called \a name and with parent \a - parent. - - Performance is boosted by modifying the widget flags \a f so that - only part of the TQListBoxItem tqchildren is redrawn. This may be - unsuitable for custom TQListBoxItem classes, in which case \c - WStaticContents and \c WNoAutoErase should be cleared - immediately after construction. - - \sa TQWidget::clearWFlags() TQt::WidgetFlags -*/ - -TQListBox::TQListBox( TQWidget *parent, const char *name, WFlags f ) - : TQScrollView( parent, name, (WFlags)(f | TQt::WStaticContents | TQt::WNoAutoErase) ) -{ - d = new TQListBoxPrivate( this ); - d->updateTimer = new TQTimer( this, "listbox update timer" ); - d->visibleTimer = new TQTimer( this, "listbox visible timer" ); - d->inputTimer = new TQTimer( this, "listbox input timer" ); - d->resizeTimer = new TQTimer( this, "listbox resize timer" ); - d->clearing = FALSE; - d->pressedItem = 0; - d->selectAnchor = 0; - d->select = FALSE; - d->rubber = 0; - d->selectable.setAutoDelete( TRUE ); - - setMouseTracking( TRUE ); - viewport()->setMouseTracking( TRUE ); - - connect( d->updateTimer, TQT_SIGNAL(timeout()), - this, TQT_SLOT(refreshSlot()) ); - connect( d->visibleTimer, TQT_SIGNAL(timeout()), - this, TQT_SLOT(ensureCurrentVisible()) ); - connect( d->resizeTimer, TQT_SIGNAL( timeout() ), - this, TQT_SLOT( adjustItems() ) ); - viewport()->setBackgroundMode( TQt::PaletteBase ); - setBackgroundMode( TQt::PaletteBackground, TQt::PaletteBase ); - viewport()->setFocusProxy( this ); - viewport()->setFocusPolicy( Qt::WheelFocus ); -} - - -TQListBox * TQListBox::changedListBox = 0; - -/*! - Destroys the list box. Deletes all list box items. -*/ - -TQListBox::~TQListBox() -{ - if ( changedListBox == this ) - changedListBox = 0; - clear(); - delete d; - d = 0; -} - -/*! - \fn void TQListBox::pressed( TQListBoxItem *item ) - - This signal is emitted when the user presses any mouse button. If - \a item is not 0, the cursor is on \a item. If \a item is 0, the - mouse cursor isn't on any item. - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. -*/ - -/*! - \overload void TQListBox::pressed( TQListBoxItem *item, const TQPoint &pnt ) - - This signal is emitted when the user presses any mouse button. If - \a item is not 0, the cursor is on \a item. If \a item is 0, the - mouse cursor isn't on any item. - - \a pnt is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. - - \sa mouseButtonPressed() rightButtonPressed() clicked() -*/ - -/*! - \fn void TQListBox::clicked( TQListBoxItem *item ) - - This signal is emitted when the user clicks any mouse button. If - \a item is not 0, the cursor is on \a item. If \a item is 0, the - mouse cursor isn't on any item. - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. -*/ - -/*! - \overload void TQListBox::clicked( TQListBoxItem *item, const TQPoint &pnt ) - - This signal is emitted when the user clicks any mouse button. If - \a item is not 0, the cursor is on \a item. If \a item is 0, the - mouse cursor isn't on any item. - - \a pnt is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). (If the click's - press and release differs by a pixel or two, \a pnt is the - position at release time.) - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. -*/ - -/*! - \fn void TQListBox::mouseButtonClicked (int button, TQListBoxItem * item, const TQPoint & pos) - - This signal is emitted when the user clicks mouse button \a - button. If \a item is not 0, the cursor is on \a item. If \a item - is 0, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). (If the click's - press and release differs by a pixel or two, \a pos is the - position at release time.) - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. -*/ - -/*! - \fn void TQListBox::mouseButtonPressed (int button, TQListBoxItem * item, const TQPoint & pos) - - This signal is emitted when the user presses mouse button \a - button. If \a item is not 0, the cursor is on \a item. If \a item - is 0, the mouse cursor isn't on any item. - - \a pos is the position of the mouse cursor in the global - coordinate system (TQMouseEvent::globalPos()). - - Note that you must not delete any TQListBoxItem objects in Q_SLOTS - connected to this signal. -*/ - -/*! - \fn void TQListBox::doubleClicked( TQListBoxItem *item ) - - This signal is emitted whenever an item is double-clicked. It's - emitted on the second button press, not the second button release. - If \a item is not 0, the cursor is on \a item. If \a item is 0, - the mouse cursor isn't on any item. -*/ - - -/*! - \fn void TQListBox::returnPressed( TQListBoxItem * ) - - This signal is emitted when Enter or Return is pressed. The - argument is currentItem(). -*/ - -/*! - \fn void TQListBox::rightButtonClicked( TQListBoxItem *, const TQPoint& ) - - This signal is emitted when the right button is clicked (i.e. when - it's released at the same point where it was pressed). The - arguments are the relevant TQListBoxItem (may be 0) and the point - in global coordinates. -*/ - - -/*! - \fn void TQListBox::rightButtonPressed (TQListBoxItem *, const TQPoint & ) - - This signal is emitted when the right button is pressed. The - arguments are the relevant TQListBoxItem (may be 0) and the point - in global coordinates. -*/ - -/*! - \fn void TQListBox::contextMenuRequested( TQListBoxItem *item, const TQPoint & pos ) - - This signal is emitted when the user invokes a context menu with - the right mouse button or with special system keys, with \a item - being the item under the mouse cursor or the current item, - respectively. - - \a pos is the position for the context menu in the global - coordinate system. -*/ - -/*! - \fn void TQListBox::selectionChanged() - - This signal is emitted when the selection set of a list box - changes. This signal is emitted in each selection mode. If the - user selects five items by drag-selecting, TQListBox tries to emit - just one selectionChanged() signal so the signal can be connected - to computationally expensive Q_SLOTS. - - \sa selected() currentItem() -*/ - -/*! - \overload void TQListBox::selectionChanged( TQListBoxItem *item ) - - This signal is emitted when the selection in a \c Single selection - list box changes. \a item is the newly selected list box item. - - \sa selected() currentItem() -*/ - -/*! - \fn void TQListBox::currentChanged( TQListBoxItem *item ) - - This signal is emitted when the user makes a new item the current - item. \a item is the new current list box item. - - \sa setCurrentItem() currentItem() -*/ - -/*! - \fn void TQListBox::highlighted( int index ) - - This signal is emitted when the user makes a new item the current - item. \a index is the index of the new current item. - - \sa currentChanged() selected() currentItem() selectionChanged() -*/ - -/*! - \overload void TQListBox::highlighted( TQListBoxItem * ) - - This signal is emitted when the user makes a new item the current - item. The argument is a pointer to the new current item. - - \sa currentChanged() selected() currentItem() selectionChanged() -*/ - -/*! - \overload void TQListBox::highlighted( const TQString & ) - - This signal is emitted when the user makes a new item the current - item and the item is (or has) a string. The argument is the text - of the new current item. - - \sa currentChanged() selected() currentItem() selectionChanged() -*/ - -/*! - \fn void TQListBox::selected( int index ) - - This signal is emitted when the user double-clicks on an item or - presses Enter on the current item. \a index is the index of the - selected item. - - \sa currentChanged() highlighted() selectionChanged() -*/ - -/*! - \overload void TQListBox::selected( TQListBoxItem * ) - - This signal is emitted when the user double-clicks on an item or - presses Enter on the current item. The argument is a pointer to - the new selected item. - - \sa currentChanged() highlighted() selectionChanged() -*/ - -/*! - \overload void TQListBox::selected( const TQString &) - - This signal is emitted when the user double-clicks on an item or - presses Enter on the current item, and the item is (or has) a - string. The argument is the text of the selected item. - - \sa currentChanged() highlighted() selectionChanged() -*/ - -/*! \reimp */ - -void TQListBox::setFont( const TQFont &font ) -{ - TQScrollView::setFont( font ); - triggerUpdate( TRUE ); -} - - -/*! - \property TQListBox::count - \brief the number of items in the list box -*/ - -uint TQListBox::count() const -{ - return d->count; -} - - -/*! - Inserts the string list \a list into the list at position \a - index. - - If \a index is negative, \a list is inserted at the end of the - list. If \a index is too large, the operation is ignored. - - \warning This function uses \c{const char *} rather than TQString, - so we recommend against using it. It is provided so that legacy - code will continue to work, and so that programs that certainly - will not need to handle code outside a single 8-bit locale can use - it. See insertStringList() which uses real TQStrings. - - \warning This function is never significantly faster than a loop - around insertItem(). - - \sa insertItem(), insertStringList() -*/ - -void TQListBox::insertStrList( const TQStrList *list, int index ) -{ - if ( !list ) { -#if defined(TQT_CHECK_NULL) - TQ_ASSERT( list != 0 ); -#endif - return; - } - insertStrList( *list, index ); -} - - - -/*! - Inserts the string list \a list into the list at position \a - index. - - If \a index is negative, \a list is inserted at the end of the - list. If \a index is too large, the operation is ignored. - - \warning This function is never significantly faster than a loop - around insertItem(). - - \sa insertItem(), insertStrList() -*/ - -void TQListBox::insertStringList( const TQStringList & list, int index ) -{ - if ( index < 0 ) - index = count(); - for ( TQStringList::ConstIterator it = list.begin(); it != list.end(); ++it ) - insertItem( new TQListBoxText(*it), index++ ); -} - - - -/*! - \overload - - Inserts the string list \a list into the list at position \a - index. - - If \a index is negative, \a list is inserted at the end of the - list. If \a index is too large, the operation is ignored. - - \warning This function uses \c{const char *} rather than TQString, - so we recommend against using it. It is provided so that legacy - code will continue to work, and so that programs that certainly - will not need to handle code outside a single 8-bit locale can use - it. See insertStringList() which uses real TQStrings. - - \warning This function is never significantly faster than a loop - around insertItem(). - - \sa insertItem(), insertStringList() -*/ - -void TQListBox::insertStrList( const TQStrList & list, int index ) -{ - TQStrListIterator it( list ); - const char* txt; - if ( index < 0 ) - index = count(); - while ( (txt=it.current()) ) { - ++it; - insertItem( new TQListBoxText(TQString::tqfromLatin1(txt)), - index++ ); - } - if ( hasFocus() && !d->current ) - setCurrentItem( d->head ); -} - - -/*! - \overload - - Inserts the \a numStrings strings of the array \a strings into the - list at position \a index. - - If \a index is negative, insertStrList() inserts \a strings at the - end of the list. If \a index is too large, the operation is - ignored. - - \warning This function uses \c{const char *} rather than TQString, - so we recommend against using it. It is provided so that legacy - code will continue to work, and so that programs that certainly - will not need to handle code outside a single 8-bit locale can use - it. See insertStringList() which uses real TQStrings. - - \warning This function is never significantly faster than a loop - around insertItem(). - - \sa insertItem(), insertStringList() -*/ - -void TQListBox::insertStrList( const char **strings, int numStrings, int index ) -{ - if ( !strings ) { -#if defined(TQT_CHECK_NULL) - TQ_ASSERT( strings != 0 ); -#endif - return; - } - if ( index < 0 ) - index = count(); - int i = 0; - while ( (numStrings<0 && strings[i]!=0) || i<numStrings ) { - insertItem( new TQListBoxText( TQString::tqfromLatin1(strings[i])), - index + i ); - i++; - } - if ( hasFocus() && !d->current ) - setCurrentItem( d->head ); -} - -/*! - Inserts the item \a lbi into the list at position \a index. - - If \a index is negative or larger than the number of items in the - list box, \a lbi is inserted at the end of the list. - - \sa insertStrList() -*/ - -void TQListBox::insertItem( const TQListBoxItem *lbi, int index ) -{ -#if defined ( TQT_CHECK_NULL ) - TQ_ASSERT( lbi != 0 ); -#else - if ( !lbi ) - return; -#endif - - if ( index < 0 ) - index = d->count; - - if ( index >= d->count ) { - insertItem( lbi, d->last ); - return; - } - - TQListBoxItem * item = (TQListBoxItem *)lbi; - d->count++; - d->cache = 0; - - item->lbox = this; - if ( !d->head || index == 0 ) { - item->n = d->head; - item->p = 0; - d->head = item; - item->dirty = TRUE; - if ( item->n ) - item->n->p = item; - } else { - TQListBoxItem * i = d->head; - while ( i->n && index > 1 ) { - i = i->n; - index--; - } - if ( i->n ) { - item->n = i->n; - item->p = i; - item->n->p = item; - item->p->n = item; - } else { - i->n = item; - item->p = i; - item->n = 0; - } - } - - if ( hasFocus() && !d->current ) { - d->current = d->head; - updateItem( d->current ); - emit highlighted( d->current ); - emit highlighted( d->current->text() ); - emit highlighted( index ); - } - - triggerUpdate( TRUE ); -} - -/*! - \overload - - Inserts the item \a lbi into the list after the item \a after, or - at the beginning if \a after is 0. - - \sa insertStrList() -*/ - -void TQListBox::insertItem( const TQListBoxItem *lbi, const TQListBoxItem *after ) -{ -#if defined ( TQT_CHECK_NULL ) - TQ_ASSERT( lbi != 0 ); -#else - if ( !lbi ) - return; -#endif - - TQListBoxItem * item = (TQListBoxItem*)lbi; - d->count++; - d->cache = 0; - - item->lbox = this; - if ( !d->head || !after ) { - item->n = d->head; - item->p = 0; - d->head = item; - item->dirty = TRUE; - if ( item->n ) - item->n->p = item; - } else { - TQListBoxItem * i = (TQListBoxItem*) after; - if ( i ) { - item->n = i->n; - item->p = i; - if ( item->n ) - item->n->p = item; - if ( item->p ) - item->p->n = item; - } - } - - if ( after == d->last ) - d->last = (TQListBoxItem*) lbi; - - if ( hasFocus() && !d->current ) { - d->current = d->head; - updateItem( d->current ); - emit highlighted( d->current ); - emit highlighted( d->current->text() ); - emit highlighted( index( d->current ) ); - } - - triggerUpdate( TRUE ); -} - -/*! - \overload - - Inserts a new list box text item with the text \a text into the - list at position \a index. - - If \a index is negative, \a text is inserted at the end of the - list. - - \sa insertStrList() -*/ - -void TQListBox::insertItem( const TQString &text, int index ) -{ - insertItem( new TQListBoxText(text), index ); -} - -/*! - \overload - - Inserts a new list box pixmap item with the pixmap \a pixmap into - the list at position \a index. - - If \a index is negative, \a pixmap is inserted at the end of the - list. - - \sa insertStrList() -*/ - -void TQListBox::insertItem( const TQPixmap &pixmap, int index ) -{ - insertItem( new TQListBoxPixmap(pixmap), index ); -} - -/*! - \overload - - Inserts a new list box pixmap item with the pixmap \a pixmap and - the text \a text into the list at position \a index. - - If \a index is negative, \a pixmap is inserted at the end of the - list. - - \sa insertStrList() -*/ - -void TQListBox::insertItem( const TQPixmap &pixmap, const TQString &text, int index ) -{ - insertItem( new TQListBoxPixmap(pixmap, text), index ); -} - -/*! - Removes and deletes the item at position \a index. If \a index is - equal to currentItem(), a new item becomes current and the - currentChanged() and highlighted() Q_SIGNALS are emitted. - - \sa insertItem(), clear() -*/ - -void TQListBox::removeItem( int index ) -{ - bool wasVisible = itemVisible( currentItem() ); - delete item( index ); - triggerUpdate( TRUE ); - if ( wasVisible ) - ensureCurrentVisible(); -} - - -/*! - Deletes all the items in the list. - - \sa removeItem() -*/ - -void TQListBox::clear() -{ - setContentsPos( 0, 0 ); - bool blocked = tqsignalsBlocked(); - blockSignals( TRUE ); - d->clearing = TRUE; - d->current = 0; - d->tmpCurrent = 0; - TQListBoxItem * i = d->head; - d->head = 0; - while ( i ) { - TQListBoxItem * n = i->n; - i->n = i->p = 0; - delete i; - i = n; - } - d->count = 0; - d->numRows = 1; - d->numColumns = 1; - d->currentRow = 0; - d->currentColumn = 0; - d->mousePressRow = -1; - d->mousePressColumn = -1; - d->mouseMoveRow = -1; - d->mouseMoveColumn = -1; - d->selectable.clear(); - clearSelection(); - blockSignals( blocked ); - triggerUpdate( TRUE ); - d->last = 0; - d->clearing = FALSE; -} - - -/*! - Returns the text at position \a index, or TQString::null if there - is no text at that position. - - \sa pixmap() -*/ - -TQString TQListBox::text( int index ) const -{ - TQListBoxItem * i = item( index ); - if ( i ) - return i->text(); - return TQString::null; -} - - -/*! - Returns a pointer to the pixmap at position \a index, or 0 if - there is no pixmap there. - - \sa text() -*/ - -const TQPixmap *TQListBox::pixmap( int index ) const -{ - TQListBoxItem * i = item( index ); - if ( i ) - return i->pixmap(); - return 0; -} - -/*! - \overload - - Replaces the item at position \a index with a new list box text - item with text \a text. - - The operation is ignored if \a index is out of range. - - \sa insertItem(), removeItem() -*/ - -void TQListBox::changeItem( const TQString &text, int index ) -{ - if( index >= 0 && index < (int)count() ) - changeItem( new TQListBoxText(text), index ); -} - -/*! - \overload - - Replaces the item at position \a index with a new list box pixmap - item with pixmap \a pixmap. - - The operation is ignored if \a index is out of range. - - \sa insertItem(), removeItem() -*/ - -void TQListBox::changeItem( const TQPixmap &pixmap, int index ) -{ - if( index >= 0 && index < (int)count() ) - changeItem( new TQListBoxPixmap(pixmap), index ); -} - -/*! - \overload - - Replaces the item at position \a index with a new list box pixmap - item with pixmap \a pixmap and text \a text. - - The operation is ignored if \a index is out of range. - - \sa insertItem(), removeItem() -*/ - -void TQListBox::changeItem( const TQPixmap &pixmap, const TQString &text, int index ) -{ - if( index >= 0 && index < (int)count() ) - changeItem( new TQListBoxPixmap(pixmap, text), index ); -} - - - -/*! - Replaces the item at position \a index with \a lbi. If \a index is - negative or too large, changeItem() does nothing. - - The item that has been changed will become selected. - - \sa insertItem(), removeItem() -*/ - -void TQListBox::changeItem( const TQListBoxItem *lbi, int index ) -{ - if ( !lbi || index < 0 || index >= (int)count() ) - return; - - removeItem( index ); - insertItem( lbi, index ); - setCurrentItem( index ); -} - - -/*! - \property TQListBox::numItemsVisible - \brief the number of visible items. - - Both partially and entirely visible items are counted. -*/ - -int TQListBox::numItemsVisible() const -{ - doLayout(); - - int columns = 0; - - int x = contentsX(); - int i=0; - while ( i < (int)d->columnPos.size()-1 && - d->columnPos[i] < x ) - i++; - if ( i < (int)d->columnPos.size()-1 && - d->columnPos[i] > x ) - columns++; - x += visibleWidth(); - while ( i < (int)d->columnPos.size()-1 && - d->columnPos[i] < x ) { - i++; - columns++; - } - - int y = contentsY(); - int rows = 0; - while ( i < (int)d->rowPos.size()-1 && - d->rowPos[i] < y ) - i++; - if ( i < (int)d->rowPos.size()-1 && - d->rowPos[i] > y ) - rows++; - y += visibleHeight(); - while ( i < (int)d->rowPos.size()-1 && - d->rowPos[i] < y ) { - i++; - rows++; - } - - return rows*columns; -} - -int TQListBox::currentItem() const -{ - if ( !d->current || !d->head ) - return -1; - - return index( d->current ); -} - - -/*! - \property TQListBox::currentText - \brief the text of the current item. - - This is equivalent to text(currentItem()). -*/ - - -/*! - \property TQListBox::currentItem - \brief the current highlighted item - - When setting this property, the highlighting is moved to the item - and the list box scrolled as necessary. - - If no item is current, currentItem() returns -1. -*/ - -void TQListBox::setCurrentItem( int index ) -{ - setCurrentItem( item( index ) ); -} - - -/*! - \overload - - Sets the current item to the TQListBoxItem \a i. -*/ -void TQListBox::setCurrentItem( TQListBoxItem * i ) -{ - if ( !i || d->current == i || numRows() == 0 ) - return; - - TQRect mfrect = tqitemRect( i ); - if ( mfrect.isValid() ) - setMicroFocusHint( mfrect.x(), mfrect.y(), mfrect.width(), mfrect.height(), FALSE ); - - TQListBoxItem * o = d->current; - d->current = i; - int ind = index( i ); - - if ( i && selectionMode() == Single ) { - bool changed = FALSE; - if ( o && o->s ) { - changed = TRUE; - o->s = FALSE; - } - if ( i && !i->s && d->selectionMode != NoSelection && i->isSelectable() ) { - i->s = TRUE; - changed = TRUE; - emit selectionChanged( i ); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::StateChanged ); -#endif - } - if ( changed ) { - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); -#endif - } - } - - d->currentColumn = ind / numRows(); - d->currentRow = ind % numRows(); - if ( o ) - updateItem( o ); - if ( i ) - updateItem( i ); - // scroll after the items are redrawn - d->visibleTimer->start( 1, TRUE ); - - TQString tmp; - if ( i ) - tmp = i->text(); - emit highlighted( i ); - if ( !tmp.isNull() ) - emit highlighted( tmp ); - emit highlighted( ind ); - emit currentChanged( i ); - -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::Focus ); -#endif -} - - -/*! - Returns a pointer to the item at position \a index, or 0 if \a - index is out of bounds. - - \sa index() -*/ - -TQListBoxItem *TQListBox::item( int index ) const -{ - if ( index < 0 || index > d->count -1 ) - return 0; - - TQListBoxItem * i = d->head; - - if ( d->cache && index > 0 ) { - i = d->cache; - int idx = d->cacheIndex; - while ( i && idx < index ) { - idx++; - i = i->n; - } - while ( i && idx > index ) { - idx--; - i = i->p; - } - } else { - int idx = index; - while ( i && idx > 0 ) { - idx--; - i = i->n; - } - } - - if ( index > 0 ) { - d->cache = i; - d->cacheIndex = index; - } - - return i; -} - - -/*! - Returns the index of \a lbi, or -1 if the item is not in this list - box or \a lbi is 0. - - \sa item() -*/ - -int TQListBox::index( const TQListBoxItem * lbi ) const -{ - if ( !lbi ) - return -1; - TQListBoxItem * i_n = d->head; - int c_n = 0; - if ( d->cache ) { - i_n = d->cache; - c_n = d->cacheIndex; - } - TQListBoxItem* i_p = i_n; - int c_p = c_n; - while ( ( i_n != 0 || i_p != 0 ) && i_n != lbi && i_p != lbi ) { - if ( i_n ) { - c_n++; - i_n = i_n->n; - } - if ( i_p ) { - c_p--; - i_p = i_p->p; - } - } - if ( i_p == lbi ) - return c_p; - if ( i_n == lbi ) - return c_n; - return -1; -} - - - -/*! - Returns TRUE if the item at position \a index is at least partly - visible; otherwise returns FALSE. -*/ - -bool TQListBox::itemVisible( int index ) -{ - TQListBoxItem * i = item( index ); - return i ? itemVisible( i ) : FALSE; -} - - -/*! - \overload - - Returns TRUE if \a item is at least partly visible; otherwise - returns FALSE. -*/ - -bool TQListBox::itemVisible( const TQListBoxItem * item ) -{ - if ( d->layoutDirty ) - doLayout(); - - int i = index( item ); - int col = i / numRows(); - int row = i % numRows(); - return ( d->columnPos[col] < contentsX()+visibleWidth() && - d->rowPos[row] < contentsY()+visibleHeight() && - d->columnPos[col+1] > contentsX() && - d->rowPos[row+1] > contentsY() ); -} - - -/*! \reimp */ - -void TQListBox::mousePressEvent( TQMouseEvent *e ) -{ - mousePressEventEx( e ); -} - -void TQListBox::mousePressEventEx( TQMouseEvent *e ) -{ - d->mouseInternalPress = TRUE; - TQListBoxItem * i = itemAt( e->pos() ); - - if ( !i && !d->current && d->head ) { - d->current = d->head; - updateItem( d->head ); - } - - if ( !i && ( d->selectionMode != Single || e->button() == Qt::RightButton ) - && !( e->state() & ControlButton ) ) - clearSelection(); - - d->select = d->selectionMode == Multi ? ( i ? !i->isSelected() : FALSE ) : TRUE; - d->pressedSelected = i && i->s; - - if ( i ) - d->selectAnchor = i; - if ( i ) { - switch( selectionMode() ) { - default: - case Single: - if ( !i->s || i != d->current ) { - if ( i->isSelectable() ) - setSelected( i, TRUE ); - else - setCurrentItem( i ); - } - break; - case Extended: - if ( i ) { - if ( !(e->state() & ShiftButton) && - !(e->state() & ControlButton) ) { - if ( !i->isSelected() ) { - bool b = tqsignalsBlocked(); - blockSignals( TRUE ); - clearSelection(); - blockSignals( b ); - } - setSelected( i, TRUE ); - d->dragging = TRUE; // always assume dragging - } else if ( e->state() & ShiftButton ) { - d->pressedSelected = FALSE; - TQListBoxItem *oldCurrent = item( currentItem() ); - bool down = index( oldCurrent ) < index( i ); - - TQListBoxItem *lit = down ? oldCurrent : i; - bool select = d->select; - bool blocked = tqsignalsBlocked(); - blockSignals( TRUE ); - for ( ;; lit = lit->n ) { - if ( !lit ) { - triggerUpdate( FALSE ); - break; - } - if ( down && lit == i ) { - setSelected( i, select ); - triggerUpdate( FALSE ); - break; - } - if ( !down && lit == oldCurrent ) { - setSelected( oldCurrent, select ); - triggerUpdate( FALSE ); - break; - } - setSelected( lit, select ); - } - blockSignals( blocked ); - emit selectionChanged(); - } else if ( e->state() & ControlButton ) { - setSelected( i, !i->isSelected() ); - d->pressedSelected = FALSE; - } - setCurrentItem( i ); - } - break; - case Multi: - //d->current = i; - setSelected( i, !i->s ); - setCurrentItem( i ); - break; - case NoSelection: - setCurrentItem( i ); - break; - } - } else { - bool unselect = TRUE; - if ( e->button() == Qt::LeftButton ) { - if ( d->selectionMode == Multi || - d->selectionMode == Extended ) { - d->tmpCurrent = d->current; - d->current = 0; - updateItem( d->tmpCurrent ); - if ( d->rubber ) - delete d->rubber; - d->rubber = 0; - d->rubber = new TQRect( e->x(), e->y(), 0, 0 ); - - if ( d->selectionMode == Extended && !( e->state() & ControlButton ) ) - selectAll( FALSE ); - unselect = FALSE; - } - if ( unselect && ( e->button() == Qt::RightButton || - ( selectionMode() == Multi || selectionMode() == Extended ) ) ) - clearSelection(); - } - } - - // for sanity, in case people are event-filtering or whatnot - delete d->scrollTimer; - d->scrollTimer = 0; - if ( i ) { - d->mousePressColumn = d->currentColumn; - d->mousePressRow = d->currentRow; - } else { - d->mousePressColumn = -1; - d->mousePressRow = -1; - } - d->ignoreMoves = FALSE; - - d->pressedItem = i; - - emit pressed( i ); - emit pressed( i, e->globalPos() ); - emit mouseButtonPressed( e->button(), i, e->globalPos() ); - if ( e->button() == Qt::RightButton ) - emit rightButtonPressed( i, e->globalPos() ); -} - - -/*! \reimp */ - -void TQListBox::mouseReleaseEvent( TQMouseEvent *e ) -{ - if ( d->selectionMode == Extended && - d->dragging ) { - d->dragging = FALSE; - if (d->current != d->pressedItem) { - updateSelection(); // when we drag, we get an update after we release - } - } - - if ( d->rubber ) { - drawRubber(); - delete d->rubber; - d->rubber = 0; - d->current = d->tmpCurrent; - updateItem( d->current ); - } - if ( d->scrollTimer ) - mouseMoveEvent( e ); - delete d->scrollTimer; - d->scrollTimer = 0; - d->ignoreMoves = FALSE; - - if ( d->selectionMode == Extended && - d->current == d->pressedItem && - d->pressedSelected && d->current ) { - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - clearSelection(); - blockSignals( block ); - d->current->s = TRUE; - emit selectionChanged(); - } - - TQListBoxItem * i = itemAt( e->pos() ); - bool emitClicked = (d->mousePressColumn != -1 && d->mousePressRow != -1) || !d->pressedItem; - emitClicked = emitClicked && d->pressedItem == i; - d->pressedItem = 0; - d->mousePressRow = -1; - d->mousePressColumn = -1; - d->mouseInternalPress = FALSE; - if ( emitClicked ) { - emit clicked( i ); - emit clicked( i, e->globalPos() ); - emit mouseButtonClicked( e->button(), i, e->globalPos() ); - if ( e->button() == Qt::RightButton ) - emit rightButtonClicked( i, e->globalPos() ); - } -} - - -/*! \reimp */ - -void TQListBox::mouseDoubleClickEvent( TQMouseEvent *e ) -{ - bool ok = TRUE; - TQListBoxItem *i = itemAt( e->pos() ); - if ( !i || selectionMode() == NoSelection ) - ok = FALSE; - - d->ignoreMoves = TRUE; - - if ( d->current && ok ) { - TQListBoxItem * i = d->current; - TQString tmp = d->current->text(); - emit selected( currentItem() ); - emit selected( i ); - if ( !tmp.isNull() ) - emit selected( tmp ); - emit doubleClicked( i ); - } -} - - -/*! \reimp */ - -void TQListBox::mouseMoveEvent( TQMouseEvent *e ) -{ - TQListBoxItem * i = itemAt( e->pos() ); - if ( i != d->highlighted ) { - if ( i ) { - emit onItem( i ); - } else { - emit onViewport(); - } - d->highlighted = i; - } - - if ( d->rubber ) { - TQRect r = d->rubber->normalize(); - drawRubber(); - d->rubber->setCoords( d->rubber->x(), d->rubber->y(), e->x(), e->y() ); - doRubberSelection( r, d->rubber->normalize() ); - drawRubber(); - return; - } - - if ( ( (e->state() & ( Qt::RightButton | Qt::LeftButton | Qt::MidButton ) ) == 0 ) || - d->ignoreMoves ) - return; - - // hack to keep the combo (and what else?) working: if we get a - // move outside the listbox without having seen a press, discard - // it. - if ( !TQRect( 0, 0, visibleWidth(), visibleHeight() ).contains( e->pos() ) && - ( (d->mousePressColumn < 0 && d->mousePressRow < 0) || - (e->state() == Qt::NoButton && !d->pressedItem) ) ) - return; - - // figure out in what direction to drag-select and perhaps scroll - int dx = 0; - int x = e->x(); - if ( x >= visibleWidth() ) { - x = visibleWidth()-1; - dx = 1; - } else if ( x < 0 ) { - x = 0; - dx = -1; - } - d->mouseMoveColumn = columnAt( x + contentsX() ); - - // sanitize mousePressColumn, if we got here without a mouse press event - if ( d->mousePressColumn < 0 && d->mouseMoveColumn >= 0 ) - d->mousePressColumn = d->mouseMoveColumn; - if ( d->mousePressColumn < 0 && d->currentColumn >= 0 ) - d->mousePressColumn = d->currentColumn; - - // if it's beyond the last column, use the last one - if ( d->mouseMoveColumn < 0 ) - d->mouseMoveColumn = dx >= 0 ? numColumns()-1 : 0; - - // repeat for y - int dy = 0; - int y = e->y(); - if ( y >= visibleHeight() ) { - y = visibleHeight()-1; - dy = 1; - } else if ( y < 0 ) { - y = 0; - dy = -1; - } - d->mouseMoveRow = rowAt( y + contentsY() ); - - if ( d->mousePressRow < 0 && d->mouseMoveRow >= 0 ) - d->mousePressRow = d->mouseMoveRow; - if ( d->mousePressRow < 0 && d->currentRow >= 0 ) - d->mousePressRow = d->currentRow; - - if ( d->mousePressRow < 0 ) - d->mousePressRow = rowAt( x + contentsX() ); - - d->scrollPos = TQPoint( dx, dy ); - - if ( ( dx || dy ) && !d->scrollTimer && e->state() == Qt::LeftButton && e->button() != Qt::LeftButton ) { - // start autoscrolling if necessary - d->scrollTimer = new TQTimer( this ); - connect( d->scrollTimer, TQT_SIGNAL(timeout()), - this, TQT_SLOT(doAutoScroll()) ); - d->scrollTimer->start( 100, FALSE ); - doAutoScroll(); - } else if ( !d->scrollTimer ) { - // or just select the required bits - updateSelection(); - } -} - - - -void TQListBox::updateSelection() -{ - if ( d->mouseMoveColumn >= 0 && d->mouseMoveRow >= 0 && - d->mousePressColumn >= 0 && d->mousePressRow >= 0 ) { - TQListBoxItem * i = item( d->mouseMoveColumn * numRows() + - d->mouseMoveRow ); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - int ind = index(i); -#endif - if ( selectionMode() == Single || selectionMode() == NoSelection ) { - if ( i && ( d->mouseInternalPress || testWFlags(WType_Popup) ) ) - setCurrentItem( i ); - } else { - if ( d->selectionMode == Extended && ( - ( d->current == d->pressedItem && d->pressedSelected ) || - (d->dirtyDrag && !d->dragging) ) ) { - if (d->dirtyDrag && !d->dragging) // emit after dragging stops - d->dirtyDrag = FALSE; - else - clearSelection(); // dont reset drag-selected items - d->pressedItem = 0; - if ( i && i->isSelectable() ) { - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - i->s = TRUE; - blockSignals( block ); - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::StateChanged ); - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::SelectionAdd ); -#endif - } - triggerUpdate( FALSE ); - } else { - int c = TQMIN( d->mouseMoveColumn, d->mousePressColumn ); - int r = TQMIN( d->mouseMoveRow, d->mousePressRow ); - int c2 = TQMAX( d->mouseMoveColumn, d->mousePressColumn ); - int r2 = TQMAX( d->mouseMoveRow, d->mousePressRow ); - bool changed = FALSE; - while( c <= c2 ) { - TQListBoxItem * i = item( c*numRows()+r ); - int rtmp = r; - while( i && rtmp <= r2 ) { - if ( (bool)i->s != (bool)d->select && i->isSelectable() ) { - i->s = d->select; -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::StateChanged ); - TQAccessible::updateAccessibility( viewport(), ind+1, d->select ? TQAccessible::SelectionAdd : TQAccessible::SelectionRemove ); -#endif - i->dirty = TRUE; - d->dirtyDrag = changed = TRUE; - } - i = i->n; - rtmp++; - } - c++; - } - if ( changed ) { - if (!d->dragging) // emit after dragging stops instead - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); -#endif - triggerUpdate( FALSE ); - } - } - if ( i ) - setCurrentItem( i ); - } - } -} - -void TQListBox::repaintSelection() -{ - if ( d->numColumns == 1 ) { - for ( uint i = topItem(); itemVisible( i ) && i < count(); ++i ) { - TQListBoxItem *it = item(i); - if ( !it ) - break; - if ( it->isSelected() ) - updateItem( it ); - } - } else { - for ( uint i = 0; i < count(); ++i ) { - TQListBoxItem *it = item(i); - if ( !it ) - break; - if ( it->isSelected() ) - updateItem( it ); - } - } -} - -/*! \reimp -*/ - -void TQListBox::contentsContextMenuEvent( TQContextMenuEvent *e ) -{ - if ( !tqreceivers( TQT_SIGNAL(contextMenuRequested(TQListBoxItem*,const TQPoint&)) ) ) { - e->ignore(); - return; - } - if ( e->reason() == TQContextMenuEvent::Keyboard ) { - TQListBoxItem *i = item( currentItem() ); - if ( i ) { - TQRect r = tqitemRect( i ); - emit contextMenuRequested( i, mapToGlobal( r.topLeft() + TQPoint( width() / 2, r.height() / 2 ) ) ); - } - } else { - TQListBoxItem * i = itemAt( contentsToViewport( e->pos() ) ); - emit contextMenuRequested( i, e->globalPos() ); - } -} - -/*!\reimp -*/ -void TQListBox::keyPressEvent( TQKeyEvent *e ) -{ - if ( ( e->key() == Qt::Key_Tab || e->key() == Qt::Key_Backtab ) - && e->state() & ControlButton ) - e->ignore(); - - if ( count() == 0 ) { - e->ignore(); - return; - } - - TQGuardedPtr<TQListBox> selfCheck = this; - - TQListBoxItem *old = d->current; - if ( !old ) { - setCurrentItem( d->head ); - if ( d->selectionMode == Single ) - setSelected( d->head, TRUE ); - e->ignore(); - return; - } - - bool selectCurrent = FALSE; - switch ( e->key() ) { - case Qt::Key_Up: - { - d->currInputString = TQString::null; - if ( currentItem() > 0 ) { - setCurrentItem( currentItem() - 1 ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Down: - { - d->currInputString = TQString::null; - if ( currentItem() < (int)count() - 1 ) { - setCurrentItem( currentItem() + 1 ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Left: - { - d->currInputString = TQString::null; - if ( currentColumn() > 0 ) { - setCurrentItem( currentItem() - numRows() ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } else if ( numColumns() > 1 && currentItem() > 0 ) { - int row = currentRow(); - setCurrentItem( currentRow() - 1 + ( numColumns() - 1 ) * numRows() ); - - if ( currentItem() == -1 ) - setCurrentItem( row - 1 + ( numColumns() - 2 ) * numRows() ); - - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } else { - TQApplication::sendEvent( horizontalScrollBar(), e ); - } - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Right: - { - d->currInputString = TQString::null; - if ( currentColumn() < numColumns()-1 ) { - int row = currentRow(); - int i = currentItem(); - TQListBoxItem *it = item( i + numRows() ); - if ( !it ) - it = item( count()-1 ); - setCurrentItem( it ); - - if ( currentItem() == -1 ) { - if ( row < numRows() - 1 ) - setCurrentItem( row + 1 ); - else - setCurrentItem( i ); - } - - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } else if ( numColumns() > 1 && currentRow() < numRows() ) { - if ( currentRow() + 1 < numRows() ) { - setCurrentItem( currentRow() + 1 ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - } - } else { - TQApplication::sendEvent( horizontalScrollBar(), e ); - } - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case TQt::Key_Next: - { - d->currInputString = TQString::null; - int i = 0; - if ( numColumns() == 1 ) { - i = currentItem() + numItemsVisible(); - i = i > (int)count() - 1 ? (int)count() - 1 : i; - setCurrentItem( i ); - setBottomItem( i ); - } else { - // I'm not sure about this behavior... - if ( currentRow() == numRows() - 1 ) - i = currentItem() + numRows(); - else - i = currentItem() + numRows() - currentRow() - 1; - i = i > (int)count() - 1 ? (int)count() - 1 : i; - setCurrentItem( i ); - } - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case TQt::Key_Prior: - { - selectCurrent = TRUE; - d->currInputString = TQString::null; - int i; - if ( numColumns() == 1 ) { - i = currentItem() - numItemsVisible(); - i = i < 0 ? 0 : i; - setCurrentItem( i ); - setTopItem( i ); - } else { - // I'm not sure about this behavior... - if ( currentRow() == 0 ) - i = currentItem() - numRows(); - else - i = currentItem() - currentRow(); - i = i < 0 ? 0 : i; - setCurrentItem( i ); - } - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Space: - { - selectCurrent = TRUE; - d->currInputString = TQString::null; - toggleCurrentItem(); - if ( selectionMode() == Extended && d->current->isSelected() ) - emit highlighted( currentItem() ); - if (selfCheck && (!( e->state() & ShiftButton ) || !d->selectAnchor)) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Return: - case Qt::Key_Enter: - { - selectCurrent = TRUE; - d->currInputString = TQString::null; - if ( currentItem() >= 0 && selectionMode() != NoSelection ) { - TQString tmp = item( currentItem() )->text(); - emit selected( currentItem()); - emit selected( item( currentItem() ) ); - if ( !tmp.isEmpty() ) - emit selected( tmp ); - emit returnPressed( item( currentItem() ) ); - } - if (selfCheck && (!( e->state() & ShiftButton ) || !d->selectAnchor)) - d->selectAnchor = d->current; - } - break; - case Qt::Key_Home: - { - selectCurrent = TRUE; - d->currInputString = TQString::null; - setCurrentItem( 0 ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - case Qt::Key_End: - { - selectCurrent = TRUE; - d->currInputString = TQString::null; - int i = (int)count() - 1; - setCurrentItem( i ); - handleItemChange( old, e->state() & ShiftButton, e->state() & ControlButton ); - if ( !( e->state() & ShiftButton ) || !d->selectAnchor ) - d->selectAnchor = d->current; - } - break; - default: - { - if ( !e->text().isEmpty() && e->text()[ 0 ].isPrint() && count() ) { - int curItem = currentItem(); - if ( curItem == -1 ) - curItem = 0; - if ( !d->inputTimer->isActive() ) { - d->currInputString = e->text(); - curItem = d->findItemByName( ++curItem, d->currInputString ); - } else { - d->inputTimer->stop(); - d->currInputString += e->text(); - int oldCurItem = curItem; - curItem = d->findItemByName( curItem, d->currInputString ); - if ( curItem < 0 ) { - curItem = d->findItemByName( ++oldCurItem, e->text() ); - d->currInputString = e->text(); - } - } - if ( curItem >= 0 ) - setCurrentItem( curItem ); - if ( curItem >= 0 && selectionMode() == TQListBox::Extended ) { - bool changed = FALSE; - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - selectAll( FALSE ); - blockSignals( block ); - TQListBoxItem *i = item( curItem ); - if ( !i->s && i->isSelectable() ) { - changed = TRUE; - i->s = TRUE; - updateItem( i ); - } - if ( changed ) - emit selectionChanged(); - } - d->inputTimer->start( 400, TRUE ); - } else { - d->currInputString = TQString::null; - if ( e->state() & ControlButton ) { - switch ( e->key() ) { - case Qt::Key_A: - selectAll( TRUE ); - break; - } - } else { - e->ignore(); - } - } - } - } - - if (selfCheck && selectCurrent && selectionMode() == Single && - d->current && !d->current->s ) { - updateItem( d->current ); - setSelected( d->current, TRUE ); - } -} - - -/*!\reimp -*/ -void TQListBox::focusInEvent( TQFocusEvent* tqfe ) -{ - d->mousePressRow = -1; - d->mousePressColumn = -1; - d->inMenuMode = FALSE; -#ifdef USE_QT4 - if ( tqfe->reason() != TQFocusEvent::Mouse && !d->current && d->head ) { -#else // USE_QT4 - if ( TQFocusEvent::reason() != TQFocusEvent::Mouse && !d->current && d->head ) { -#endif // USE_QT4 - d->current = d->head; - TQListBoxItem *i = d->current; - TQString tmp; - if ( i ) - tmp = i->text(); - int tmp2 = index( i ); - emit highlighted( i ); - if ( !tmp.isNull() ) - emit highlighted( tmp ); - emit highlighted( tmp2 ); - emit currentChanged( i ); - } - if ( tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this ) ) - repaintSelection(); - - if ( d->current ) { - updateItem( currentItem() ); - TQRect mfrect = tqitemRect( d->current ); - if ( mfrect.isValid() ) - setMicroFocusHint( mfrect.x(), mfrect.y(), mfrect.width(), mfrect.height(), FALSE ); - } -} - - -/*!\reimp -*/ -void TQListBox::focusOutEvent( TQFocusEvent* tqfe) -{ - if (tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this )) { - d->inMenuMode = -#ifdef USE_QT4 - tqfe->reason() == TQFocusEvent::Popup || -#else // USE_QT4 - TQFocusEvent::reason() == TQFocusEvent::Popup || -#endif // USE_QT4 - (tqApp->tqfocusWidget() && tqApp->tqfocusWidget()->inherits("TQMenuBar")); - if ( !d->inMenuMode ) - repaintSelection(); - } - - if ( d->current ) - updateItem( currentItem() ); -} - -/*!\reimp -*/ -bool TQListBox::eventFilter( TQObject *o, TQEvent *e ) -{ - //### remove in 4.0 - return TQScrollView::eventFilter( o, e ); -} - -/*! - Repaints the item at position \a index in the list. -*/ - -void TQListBox::updateItem( int index ) -{ - if ( index >= 0 ) - updateItem( item( index ) ); -} - - -/*! - \overload - - Repaints the TQListBoxItem \a i. -*/ - -void TQListBox::updateItem( TQListBoxItem * i ) -{ - if ( !i ) - return; - i->dirty = TRUE; - d->updateTimer->start( 0, TRUE ); -} - - -/*! - \property TQListBox::selectionMode - \brief the selection mode of the list box - - Sets the list box's selection mode, which may be one of \c Single - (the default), \c Extended, \c Multi or \c NoSelection. - - \sa SelectionMode -*/ - -void TQListBox::setSelectionMode( SelectionMode mode ) -{ - if ( d->selectionMode == mode ) - return; - - if ( ( selectionMode() == Multi || selectionMode() == Extended ) - && ( mode == TQListBox::Single || mode == TQListBox::NoSelection ) ){ - clearSelection(); - if ( ( mode == TQListBox::Single ) && currentItem() ) - setSelected( currentItem(), TRUE ); - } - - d->selectionMode = mode; - triggerUpdate( TRUE ); -} - - -TQListBox::SelectionMode TQListBox::selectionMode() const -{ - return d->selectionMode; -} - - -/*! - \obsolete - \property TQListBox::multiSelection - \brief whether or not the list box is in Multi selection mode - - Consider using the \l TQListBox::selectionMode property instead of - this property. - - When setting this property, Multi selection mode is used if set to TRUE and - to Single selection mode if set to FALSE. - - When getting this property, TRUE is returned if the list box is in - Multi selection mode or Extended selection mode, and FALSE if it is - in Single selection mode or NoSelection mode. - - \sa selectionMode -*/ - -bool TQListBox::isMultiSelection() const -{ - return selectionMode() == Multi || selectionMode() == Extended; -} - -void TQListBox::setMultiSelection( bool enable ) -{ - setSelectionMode( enable ? Multi : Single ); -} - - -/*! - Toggles the selection status of currentItem() and repaints if the - list box is a \c Multi selection list box. - - \sa setMultiSelection() -*/ - -void TQListBox::toggleCurrentItem() -{ - if ( selectionMode() == Single || - selectionMode() == NoSelection || - !d->current ) - return; - - if ( d->current->s || d->current->isSelectable() ) { - d->current->s = !d->current->s; - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - int ind = index( d->current ); - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::StateChanged ); - TQAccessible::updateAccessibility( viewport(), ind+1, d->current->s ? TQAccessible::SelectionAdd : TQAccessible::SelectionRemove ); -#endif - } - updateItem( d->current ); -} - - -/*! - \overload - - If \a select is TRUE the item at position \a index is selected; - otherwise the item is deselected. -*/ - -void TQListBox::setSelected( int index, bool select ) -{ - setSelected( item( index ), select ); -} - - -/*! - Selects \a item if \a select is TRUE or unselects it if \a select - is FALSE, and repaints the item appropriately. - - If the list box is a \c Single selection list box and \a select is - TRUE, setSelected() calls setCurrentItem(). - - If the list box is a \c Single selection list box, \a select is - FALSE, setSelected() calls clearSelection(). - - \sa setMultiSelection(), setCurrentItem(), clearSelection(), currentItem() -*/ - -void TQListBox::setSelected( TQListBoxItem * item, bool select ) -{ - if ( !item || !item->isSelectable() || - (bool)item->s == select || d->selectionMode == NoSelection ) - return; - - int ind = index( item ); - bool emitHighlighted = (d->current != item) || - ( item->s != (uint) select && select ); - if ( selectionMode() == Single ) { - if ( d->current != item ) { - TQListBoxItem *o = d->current; - if ( d->current && d->current->s ) - d->current->s = FALSE; - d->current = item; -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::Focus ); -#endif - d->currentColumn = ind / numRows(); - d->currentRow = ind % numRows(); - - if ( o ) - updateItem( o ); - } - } - - item->s = (uint)select; - updateItem( item ); - - if ( d->selectionMode == Single && select ) { - emit selectionChanged( item ); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), ind+1, TQAccessible::StateChanged ); -#endif - } - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); - if ( d->selectionMode != Single ) - TQAccessible::updateAccessibility( viewport(), ind+1, select ? TQAccessible::SelectionAdd : TQAccessible::SelectionRemove ); -#endif - - if ( emitHighlighted ) { - TQString tmp; - if ( d->current ) - tmp = d->current->text(); - int tmp2 = index( d->current ); - emit highlighted( d->current ); - if ( !tmp.isNull() ) - emit highlighted( tmp ); - emit highlighted( tmp2 ); - emit currentChanged( d->current ); - } -} - - -/*! - Returns TRUE if item \a i is selected; otherwise returns FALSE. -*/ - -bool TQListBox::isSelected( int i ) const -{ - if ( selectionMode() == Single && i != currentItem() ) - return FALSE; - - TQListBoxItem * lbi = item( i ); - if ( !lbi ) - return FALSE; // should not happen - return lbi->s; -} - - -/*! - \overload - - Returns TRUE if item \a i is selected; otherwise returns FALSE. -*/ - -bool TQListBox::isSelected( const TQListBoxItem * i ) const -{ - if ( !i ) - return FALSE; - - return i->s; -} - -/*! Returns the selected item if the list box is in -single-selection mode and an item is selected. - -If no items are selected or the list box is in another selection mode -this function returns 0. - -\sa setSelected() setMultiSelection() -*/ - -TQListBoxItem* TQListBox::selectedItem() const -{ - if ( d->selectionMode != Single ) - return 0; - if ( isSelected( currentItem() ) ) - return d->current; - return 0; -} - - -/*! - Deselects all items, if possible. - - Note that a \c Single selection list box will automatically select - an item if it has keyboard focus. -*/ - -void TQListBox::clearSelection() -{ - selectAll( FALSE ); -} - -/*! - In \c Multi and \c Extended modes, this function sets all items to - be selected if \a select is TRUE, and to be unselected if \a - select is FALSE. - - In \c Single and \c NoSelection modes, this function only changes - the selection status of currentItem(). -*/ - -void TQListBox::selectAll( bool select ) -{ - if ( selectionMode() == Multi || selectionMode() == Extended ) { - bool b = tqsignalsBlocked(); - blockSignals( TRUE ); - for ( int i = 0; i < (int)count(); i++ ) - setSelected( i, select ); - blockSignals( b ); - emit selectionChanged(); - } else if ( d->current ) { - TQListBoxItem * i = d->current; - setSelected( i, select ); - } -} - -/*! - Inverts the selection. Only works in \c Multi and \c Extended - selection mode. -*/ - -void TQListBox::invertSelection() -{ - if ( d->selectionMode == Single || - d->selectionMode == NoSelection ) - return; - - bool b = tqsignalsBlocked(); - blockSignals( TRUE ); - for ( int i = 0; i < (int)count(); i++ ) - setSelected( i, !item( i )->isSelected() ); - blockSignals( b ); - emit selectionChanged(); -} - - -/*! - \obsolete - Not used anymore; provided for binary compatibility -*/ - -void TQListBox::emitChangedSignal( bool ) -{ -} - - -/*! \reimp */ - -TQSize TQListBox::tqsizeHint() const -{ - if ( cachedSizeHint().isValid() ) - return cachedSizeHint(); - - constPolish(); - doLayout(); - - int i=0; - while( i < 10 && - i < (int)d->columnPos.size()-1 && - d->columnPos[i] < 200 ) - i++; - int x; - x = TQMIN( 200, d->columnPos[i] + - 2 * tqstyle().tqpixelMetric( TQStyle::PM_DefaultFrameWidth ) ); - x = TQMAX( 40, x ); - - i = 0; - while( i < 10 && - i < (int)d->rowPos.size()-1 && - d->rowPos[i] < 200 ) - i++; - int y; - y = TQMIN( 200, d->rowPos[i] + - 2 * tqstyle().tqpixelMetric( TQStyle::PM_DefaultFrameWidth ) ); - y = TQMAX( 40, y ); - - TQSize s( x, y ); - setCachedSizeHint( s ); - return s; -} - -/*! - \reimp -*/ - -TQSize TQListBox::tqminimumSizeHint() const -{ - return TQScrollView::tqminimumSizeHint(); -} - - -/*! - Ensures that a single paint event will occur at the end of the - current event loop iteration. If \a doLayout is TRUE, the tqlayout - is also redone. -*/ - -void TQListBox::triggerUpdate( bool doLayout ) -{ - if ( doLayout ) - d->layoutDirty = d->mustPaintAll = TRUE; - d->updateTimer->start( 0, TRUE ); -} - - -void TQListBox::setColumnMode( LayoutMode mode ) -{ - if ( mode == Variable ) - return; - d->rowModeWins = FALSE; - d->columnMode = mode; - triggerUpdate( TRUE ); -} - - -void TQListBox::setColumnMode( int columns ) -{ - if ( columns < 1 ) - columns = 1; - d->columnMode = FixedNumber; - d->numColumns = columns; - d->rowModeWins = FALSE; - triggerUpdate( TRUE ); -} - -void TQListBox::setRowMode( LayoutMode mode ) -{ - if ( mode == Variable ) - return; - d->rowModeWins = TRUE; - d->rowMode = mode; - triggerUpdate( TRUE ); -} - - -void TQListBox::setRowMode( int rows ) -{ - if ( rows < 1 ) - rows = 1; - d->rowMode = FixedNumber; - d->numRows = rows; - d->rowModeWins = TRUE; - triggerUpdate( TRUE ); -} - -/*! - \property TQListBox::columnMode - \brief the column tqlayout mode for this list box. - - setColumnMode() sets the tqlayout mode and adjusts the number of - displayed columns. The row tqlayout mode automatically becomes \c - Variable, unless the column mode is \c Variable. - - \sa setRowMode() columnMode() rowMode numColumns -*/ - - -TQListBox::LayoutMode TQListBox::columnMode() const -{ - if ( d->rowModeWins ) - return Variable; - else - return d->columnMode; -} - - -/*! - \property TQListBox::rowMode - \brief the row tqlayout mode for this list box - - This property is normally \c Variable. - - setRowMode() sets the tqlayout mode and adjusts the number of - displayed rows. The column tqlayout mode automatically becomes \c - Variable, unless the row mode is \c Variable. - - \sa columnMode rowMode -*/ - - -TQListBox::LayoutMode TQListBox::rowMode() const -{ - if ( d->rowModeWins ) - return d->rowMode; - else - return Variable; -} - - -/*! - \property TQListBox::numColumns - \brief the number of columns in the list box - - This is normally 1, but can be different if \l - TQListBox::columnMode or \l TQListBox::rowMode has been set. - - \sa columnMode rowMode numRows -*/ - -int TQListBox::numColumns() const -{ - if ( count() == 0 ) - return 0; - if ( !d->rowModeWins && d->columnMode == FixedNumber ) - return d->numColumns; - doLayout(); - return d->columnPos.size()-1; -} - - -/*! - \property TQListBox::numRows - \brief the number of rows in the list box. - - This is equal to the number of items in the default single-column - tqlayout, but can be different. - - \sa columnMode rowMode numColumns -*/ - -int TQListBox::numRows() const -{ - if ( count() == 0 ) - return 0; - if ( d->rowModeWins && d->rowMode == FixedNumber ) - return d->numRows; - doLayout(); - return d->rowPos.size()-1; -} - - -/*! - This function does the hard tqlayout work. You should never need to - call it. -*/ - -void TQListBox::doLayout() const -{ - if ( !d->layoutDirty || d->resizeTimer->isActive() ) - return; - constPolish(); - int c = count(); - switch( rowMode() ) { - case FixedNumber: - // columnMode() is known to be Variable - tryGeometry( d->numRows, (c+d->numRows-1)/d->numRows ); - break; - case FitToHeight: - // columnMode() is known to be Variable - if ( d->head ) { - // this is basically the FitToWidth code, but edited to use rows. - int maxh = 0; - TQListBoxItem * i = d->head; - while ( i ) { - int h = i->height(this); - if ( maxh < h ) - maxh = h; - i = i->n; - } - int vh = viewportSize( 1, 1 ).height(); - do { - int rows = vh / maxh; - if ( rows > c ) - rows = c; - if ( rows < 1 ) - rows = 1; - if ( variableHeight() && rows < c ) { - do { - ++rows; - tryGeometry( rows, (c+rows-1)/rows ); - } while ( rows <= c && - d->rowPos[(int)d->rowPos.size()-1] <= vh ); - --rows; - } - tryGeometry( rows, (c+rows-1)/rows ); - int nvh = viewportSize( d->columnPos[(int)d->columnPos.size()-1], - d->rowPos[(int)d->rowPos.size()-1] ).height(); - if ( nvh < vh ) - vh = nvh; - } while ( d->rowPos.size() > 2 && - vh < d->rowPos[(int)d->rowPos.size()-1] ); - } else { - tryGeometry( 1, 1 ); - } - break; - case Variable: - if ( columnMode() == FixedNumber ) { - tryGeometry( (count()+d->numColumns-1)/d->numColumns, - d->numColumns ); - } else if ( d->head ) { // FitToWidth, at least one item - int maxw = 0; - TQListBoxItem * i = d->head; - while ( i ) { - int w = i->width(this); - if ( maxw < w ) - maxw = w; - i = i->n; - } - int vw = viewportSize( 1, 1 ).width(); - do { - int cols = vw / maxw; - if ( cols > c ) - cols = c; - if ( cols < 1 ) - cols = 1; - if ( variableWidth() && cols < c ) { - do { - ++cols; - tryGeometry( (c+cols-1)/cols, cols ); - } while ( cols <= c && - d->columnPos[(int)d->columnPos.size()-1] <= vw ); - --cols; - } - tryGeometry( (c+cols-1)/cols, cols ); - int nvw = viewportSize( d->columnPos[(int)d->columnPos.size()-1], - d->rowPos[(int)d->rowPos.size()-1] ).width(); - if ( nvw < vw ) - vw = nvw; - } while ( d->columnPos.size() > 2 && - vw < d->columnPos[(int)d->columnPos.size()-1] ); - } else { - tryGeometry( 1, 1 ); - } - break; - } - - d->layoutDirty = FALSE; - int w = d->columnPos[(int)d->columnPos.size()-1]; - int h = d->rowPos[(int)d->rowPos.size()-1]; - TQSize s( viewportSize( w, h ) ); - w = TQMAX( w, s.width() ); - - d->columnPosOne = d->columnPos[1]; - // extend the column for simple single-column listboxes - if ( columnMode() == FixedNumber && d->numColumns == 1 && - d->columnPos[1] < w ) - d->columnPos[1] = w; - ((TQListBox *)this)->resizeContents( w, h ); -} - - -/*! - Lay the items out in a \a columns by \a rows array. The array may - be too big: doLayout() is expected to call this with the right - values. -*/ - -void TQListBox::tryGeometry( int rows, int columns ) const -{ - if ( columns < 1 ) - columns = 1; - d->columnPos.resize( columns+1 ); - - if ( rows < 1 ) - rows = 1; - d->rowPos.resize( rows+1 ); - - // funky hack I: dump the height/width of each column/row in - // {column,row}Pos for later conversion to positions. - int c; - for( c=0; c<=columns; c++ ) - d->columnPos[c] = 0; - int r; - for( r=0; r<=rows; r++ ) - d->rowPos[r] = 0; - r = c = 0; - TQListBoxItem * i = d->head; - while ( i && c < columns ) { - if ( i == d->current ) { - d->currentRow = r; - d->currentColumn = c; - } - - int w = i->width(this); - if ( d->columnPos[c] < w ) - d->columnPos[c] = w; - int h = i->height(this); - if ( d->rowPos[r] < h ) - d->rowPos[r] = h; - i = i->n; - r++; - if ( r == rows ) { - r = 0; - c++; - } - } - // funky hack II: if not variable {width,height}, unvariablify it. - if ( !variableWidth() ) { - int w = 0; - for( c=0; c<columns; c++ ) - if ( w < d->columnPos[c] ) - w = d->columnPos[c]; - for( c=0; c<columns; c++ ) - d->columnPos[c] = w; - } - if ( !variableHeight() ) { - int h = 0; - for( r=0; r<rows; r++ ) - if ( h < d->rowPos[r] ) - h = d->rowPos[r]; - for( r=0; r<rows; r++ ) - d->rowPos[r] = h; - } - // repair the hacking. - int x = 0; - for( c=0; c<=columns; c++ ) { - int w = d->columnPos[c]; - d->columnPos[c] = x; - x += w; - } - int y = 0; - for( r=0; r<=rows; r++ ) { - int h = d->rowPos[r]; - d->rowPos[r] = y; - y += h; - } -} - - -/*! - Returns the row index of the current item, or -1 if no item is the - current item. -*/ - -int TQListBox::currentRow() const -{ - if ( !d->current ) - return -1; - if ( d->currentRow < 0 ) - d->layoutDirty = TRUE; - if ( d->layoutDirty ) - doLayout(); - return d->currentRow; -} - - -/*! - Returns the column index of the current item, or -1 if no item is - the current item. -*/ - -int TQListBox::currentColumn() const -{ - if ( !d->current ) - return -1; - if ( d->currentColumn < 0 ) - d->layoutDirty = TRUE; - if ( d->layoutDirty ) - doLayout(); - return d->currentColumn; -} - - -void TQListBox::setTopItem( int index ) -{ - if ( index >= (int)count() || count() == 0 ) - return; - int col = index / numRows(); - int y = d->rowPos[index-col*numRows()]; - if ( d->columnPos[col] >= contentsX() && - d->columnPos[col+1] <= contentsX() + visibleWidth() ) - setContentsPos( contentsX(), y ); - else - setContentsPos( d->columnPos[col], y ); -} - -/*! - Scrolls the list box so the item at position \a index in the list - is displayed in the bottom row of the list box. - - \sa setTopItem() -*/ - -void TQListBox::setBottomItem( int index ) -{ - if ( index >= (int)count() || count() == 0 ) - return; - int col = index / numRows(); - int y = d->rowPos[1+index-col*numRows()] - visibleHeight(); - if ( y < 0 ) - y = 0; - if ( d->columnPos[col] >= contentsX() && - d->columnPos[col+1] <= contentsX() + visibleWidth() ) - setContentsPos( contentsX(), y ); - else - setContentsPos( d->columnPos[col], y ); -} - - -/*! - Returns the item at point \a p, specified in viewport coordinates, - or a 0 if there is no item at \a p. - - Use contentsToViewport() to convert between widget coordinates and - viewport coordinates. -*/ - -TQListBoxItem * TQListBox::itemAt( const TQPoint& p ) const -{ - if ( d->layoutDirty ) - doLayout(); - TQPoint np = p; - - // take into acount frame margin to get to viewport - np -= viewport()->pos(); - if (!TQT_TQRECT_OBJECT(viewport()->rect()).contains(np)) - return 0; - - // take into account contents position - np = viewportToContents( np ); - - int x = np.x(); - int y = np.y(); - - // return 0 when y is below the last row - if ( y > d->rowPos[ numRows() ] ) - return 0; - - int col = columnAt( x ); - int row = rowAt( y ); - - TQListBoxItem *i = item( col * numRows() + row ); - if ( i && numColumns() > 1 ) { - if ( d->columnPos[ col ] + i->width( this ) >= x ) - return i; - } else { - if ( d->columnPos[ col + 1 ] >= x ) - return i; - } - return 0; -} - - -/*! - Ensures that the current item is visible. -*/ - -void TQListBox::ensureCurrentVisible() -{ - if ( !d->current ) - return; - - doLayout(); - - int row = currentRow(); - int column = currentColumn(); - int w = ( d->columnPos[column+1] - d->columnPos[column] ) / 2; - int h = ( d->rowPos[row+1] - d->rowPos[row] ) / 2; - // next four lines are Bad. they mean that for pure left-to-right - // languages, textual list box items are displayed better than - // before when there is little space. for non-textual items, or - // other languages, it means... that you really should have enough - // space in the first place :) - if ( numColumns() == 1 ) - w = 0; - if ( w*2 > viewport()->width() ) - w = viewport()->width()/2; - - ensureVisible( d->columnPos[column] + w, d->rowPos[row] + h, w, h); -} - - -/*! \internal */ - -void TQListBox::doAutoScroll() -{ - if ( d->scrollPos.x() < 0 ) { - // scroll left - int x = contentsX() - horizontalScrollBar()->lineStep(); - if ( x < 0 ) - x = 0; - if ( x != contentsX() ) { - d->mouseMoveColumn = columnAt( x ); - updateSelection(); - if ( x < contentsX() ) - setContentsPos( x, contentsY() ); - } - } else if ( d->scrollPos.x() > 0 ) { - // scroll right - int x = contentsX() + horizontalScrollBar()->lineStep(); - if ( x + visibleWidth() > contentsWidth() ) - x = contentsWidth() - visibleWidth(); - if ( x != contentsX() ) { - d->mouseMoveColumn = columnAt( x + visibleWidth() - 1 ); - updateSelection(); - if ( x > contentsX() ) - setContentsPos( x, contentsY() ); - } - } - - if ( d->scrollPos.y() < 0 ) { - // scroll up - int y = contentsY() - verticalScrollBar()->lineStep(); - if ( y < 0 ) - y = 0; - if ( y != contentsY() ) { - y = contentsY() - verticalScrollBar()->lineStep(); - d->mouseMoveRow = rowAt( y ); - updateSelection(); - } - } else if ( d->scrollPos.y() > 0 ) { - // scroll down - int y = contentsY() + verticalScrollBar()->lineStep(); - if ( y + visibleHeight() > contentsHeight() ) - y = contentsHeight() - visibleHeight(); - if ( y != contentsY() ) { - y = contentsY() + verticalScrollBar()->lineStep(); - d->mouseMoveRow = rowAt(y + visibleHeight() - 1 ); - updateSelection(); - } - } - - if ( d->scrollPos == TQPoint( 0, 0 ) ) { - delete d->scrollTimer; - d->scrollTimer = 0; - } -} - - -/*! - \property TQListBox::topItem - \brief the index of an item at the top of the screen. - - When getting this property and the listbox has multiple columns, - an arbitrary item is selected and returned. - - When setting this property, the list box is scrolled so the item - at position \e index in the list is displayed in the top row of - the list box. -*/ - -int TQListBox::topItem() const -{ - doLayout(); - - // move rightwards to the best column - int col = columnAt( contentsX() ); - int row = rowAt( contentsY() ); - return col * numRows() + row; -} - - -/*! - \property TQListBox::variableHeight - \brief whether this list box has variable-height rows - - When the list box has variable-height rows (the default), each row - is as high as the highest item in that row. When it has same-sized - rows, all rows are as high as the highest item in the list box. - - \sa variableWidth -*/ - -bool TQListBox::variableHeight() const -{ - return d->variableHeight; -} - - -void TQListBox::setVariableHeight( bool enable ) -{ - if ( (bool)d->variableHeight == enable ) - return; - - d->variableHeight = enable; - triggerUpdate( TRUE ); -} - - -/*! - \property TQListBox::variableWidth - \brief whether this list box has variable-width columns - - When the list box has variable-width columns, each column is as - wide as the widest item in that column. When it has same-sized - columns (the default), all columns are as wide as the widest item - in the list box. - - \sa variableHeight -*/ - -bool TQListBox::variableWidth() const -{ - return d->variableWidth; -} - - -void TQListBox::setVariableWidth( bool enable ) -{ - if ( (bool)d->variableWidth == enable ) - return; - - d->variableWidth = enable; - triggerUpdate( TRUE ); -} - - -/*! - Repaints only what really needs to be repainted. -*/ -void TQListBox::refreshSlot() -{ - if ( d->mustPaintAll || - d->layoutDirty ) { - d->mustPaintAll = FALSE; - bool currentItemVisible = itemVisible( currentItem() ); - doLayout(); - if ( hasFocus() && - currentItemVisible && - d->currentColumn >= 0 && - d->currentRow >= 0 && - ( d->columnPos[d->currentColumn] < contentsX() || - d->columnPos[d->currentColumn+1]>contentsX()+visibleWidth() || - d->rowPos[d->currentRow] < contentsY() || - d->rowPos[d->currentRow+1] > contentsY()+visibleHeight() ) ) - ensureCurrentVisible(); - viewport()->tqrepaint( FALSE ); - return; - } - - TQRegion r; - int x = contentsX(); - int y = contentsY(); - int col = columnAt( x ); - int row = rowAt( y ); - int top = row; - while( col < (int)d->columnPos.size()-1 && d->columnPos[col+1] < x ) - col++; - while( top < (int)d->rowPos.size()-1 && d->rowPos[top+1] < y ) - top++; - TQListBoxItem * i = item( col * numRows() + row ); - - while ( i && (int)col < numColumns() && - d->columnPos[col] < x + visibleWidth() ) { - int cw = d->columnPos[col+1] - d->columnPos[col]; - while ( i && row < numRows() && d->rowPos[row] < - y + visibleHeight() ) { - if ( i->dirty ) - r = r.unite( TQRect( d->columnPos[col] - x, d->rowPos[row] - y, - cw, d->rowPos[row+1] - d->rowPos[row] ) ); - row++; - i = i->n; - } - col++; - if ( numColumns() > 1 ) { - row = top; - i = item( col * numRows() + row ); - } - } - - if ( r.isEmpty() ) - viewport()->tqrepaint( FALSE ); - else - viewport()->tqrepaint( r, FALSE ); -} - - -/*! \reimp */ - -void TQListBox::viewportPaintEvent( TQPaintEvent * e ) -{ - doLayout(); - TQWidget* vp = viewport(); - TQPainter p( vp ); - TQRegion r = e->region(); - -#if 0 - { - // this stuff has been useful enough times that from now I'm - // leaving it in the source. - uint i = 0; - qDebug( "%s/%s: %i rects", className(), name(), r.rects().size() ); - while( i < r.rects().size() ) { - qDebug( "rect %d: %d, %d, %d, %d", i, - r.rects()[i].left(), r.rects()[i].top(), - r.rects()[i].width(), r.rects()[i].height() ); - i++; - } - qDebug( "" ); - } -#endif - - int x = contentsX(); - int y = contentsY(); - int w = vp->width(); - int h = vp->height(); - - int col = columnAt( x ); - int top = rowAt( y ); - int row = top; - - TQListBoxItem * i = item( col*numRows() + row ); - - const TQColorGroup & g = tqcolorGroup(); - p.setPen( g.text() ); - p.setBackgroundColor( backgroundBrush().color() ); - while ( i && (int)col < numColumns() && d->columnPos[col] < x + w ) { - int cw = d->columnPos[col+1] - d->columnPos[col]; - while ( i && (int)row < numRows() && d->rowPos[row] < y + h ) { - int ch = d->rowPos[row+1] - d->rowPos[row]; - TQRect tqitemRect( d->columnPos[col]-x, d->rowPos[row]-y, cw, ch ); - TQRegion tempRegion( tqitemRect ); - TQRegion itemPaintRegion( tempRegion.intersect( r ) ); - if ( !itemPaintRegion.isEmpty() ) { - p.save(); - p.setClipRegion( itemPaintRegion ); - p.translate( d->columnPos[col]-x, d->rowPos[row]-y ); - paintCell( &p, row, col ); - p.restore(); - r = r.subtract( itemPaintRegion ); - } - row++; - if ( i->dirty ) { - // reset dirty flag only if the entire item was painted - if ( itemPaintRegion == TQRegion( tqitemRect ) ) - i->dirty = FALSE; - } - i = i->n; - } - col++; - if ( numColumns() > 1 ) { - row = top; - i = item( col * numRows() + row ); - } - } - - if ( r.isEmpty() ) - return; - p.setClipRegion( r ); - p.fillRect( 0, 0, w, h, viewport()->backgroundBrush() ); -} - - -/*! - Returns the height in pixels of the item with index \a index. \a - index defaults to 0. - - If \a index is too large, this function returns 0. -*/ - -int TQListBox::itemHeight( int index ) const -{ - if ( index >= (int)count() || index < 0 ) - return 0; - int r = index % numRows(); - return d->rowPos[r+1] - d->rowPos[r]; -} - - -/*! - Returns the index of the column at \a x, which is in the listbox's - coordinates, not in on-screen coordinates. - - If there is no column that spans \a x, columnAt() returns -1. -*/ - -int TQListBox::columnAt( int x ) const -{ - if ( x < 0 ) - return -1; - if ( !d->columnPos.size() ) - return -1; - if ( x >= d->columnPos[(int)d->columnPos.size()-1 ] ) - return numColumns() - 1; - - int col = 0; - while( col < (int)d->columnPos.size()-1 && d->columnPos[col+1] < x ) - col++; - return col; -} - - -/*! - Returns the index of the row at \a y, which is in the listbox's - coordinates, not in on-screen coordinates. - - If there is no row that spans \a y, rowAt() returns -1. -*/ - -int TQListBox::rowAt( int y ) const -{ - if ( y < 0 ) - return -1; - - // find the top item, use bsearch for speed - int l = 0; - int r = d->rowPos.size() - 2; - if ( r < 0 ) - return -1; - if ( l <= d->rowPosCache && d->rowPosCache <= r ) { - if ( d->rowPos[ TQMAX( l, d->rowPosCache - 10 ) ] <= y - && y <= d->rowPos[ TQMIN( r, d->rowPosCache + 10 ) ] ) { - l = TQMAX( l, d->rowPosCache - 10 ); - r = TQMIN( r, d->rowPosCache + 10 ); - } - } - int i = ( (l+r+1) / 2 ); - while ( r - l ) { - if ( d->rowPos[i] > y ) - r = i -1; - else - l = i; - i = ( (l+r+1) / 2 ); - } - d->rowPosCache = i; - if ( d->rowPos[i] <= y && y <= d->rowPos[i+1] ) - return i; - - return d->count - 1; -} - - -/*! - Returns the rectangle on the screen that \a item occupies in - viewport()'s coordinates, or an invalid rectangle if \a item is 0 - or is not currently visible. -*/ - -TQRect TQListBox::tqitemRect( TQListBoxItem *item ) const -{ - if ( d->resizeTimer->isActive() ) - return TQRect( 0, 0, -1, -1 ); - if ( !item ) - return TQRect( 0, 0, -1, -1 ); - - int i = index( item ); - int col = i / numRows(); - int row = i % numRows(); - - int x = d->columnPos[ col ] - contentsX(); - int y = d->rowPos[ row ] - contentsY(); - - TQRect r( x, y, d->columnPos[ col + 1 ] - d->columnPos[ col ], - d->rowPos[ row + 1 ] - d->rowPos[ row ] ); - if ( r.intersects( TQRect( 0, 0, visibleWidth(), visibleHeight() ) ) ) - return r; - return TQRect( 0, 0, -1, -1 ); -} - - -#ifndef TQT_NO_COMPAT - -/*! - \obsolete - - Using this method is quite inefficient. We suggest to use insertItem() - for inserting and sort() afterwards. - - Inserts \a lbi at its sorted position in the list box and returns the - position. - - All items must be inserted with inSort() to maintain the sorting - order. inSort() treats any pixmap (or user-defined type) as - lexicographically less than any string. - - \sa insertItem(), sort() -*/ -int TQListBox::inSort( const TQListBoxItem * lbi ) -{ - qObsolete( "TQListBox", "inSort", "insertItem" ); - if ( !lbi ) - return -1; - - TQListBoxItem * i = d->head; - int c = 0; - - while( i && i->text() < lbi->text() ) { - i = i->n; - c++; - } - insertItem( lbi, c ); - return c; -} - -/*! - \obsolete - \overload - Using this method is quite inefficient. We suggest to use insertItem() - for inserting and sort() afterwards. - - Inserts a new item of \a text at its sorted position in the list box and - returns the position. - - All items must be inserted with inSort() to maintain the sorting - order. inSort() treats any pixmap (or user-defined type) as - lexicographically less than any string. - - \sa insertItem(), sort() -*/ -int TQListBox::inSort( const TQString& text ) -{ - qObsolete( "TQListBox", "inSort", "insertItem" ); - return inSort( new TQListBoxText(text) ); -} - -#endif - - -/*! \reimp */ - -void TQListBox::resizeEvent( TQResizeEvent *e ) -{ - d->layoutDirty = ( d->layoutDirty || - rowMode() == FitToHeight || - columnMode() == FitToWidth ); - - if ( !d->layoutDirty && columnMode() == FixedNumber && - d->numColumns == 1) { - int w = d->columnPosOne; - TQSize s( viewportSize( w, contentsHeight() ) ); - w = TQMAX( w, s.width() ); - d->columnPos[1] = TQMAX( w, d->columnPosOne ); - resizeContents( d->columnPos[1], contentsHeight() ); - } - - if ( d->resizeTimer->isActive() ) - d->resizeTimer->stop(); - if ( d->rowMode == FixedNumber && d->columnMode == FixedNumber ) { - bool currentItemVisible = itemVisible( currentItem() ); - doLayout(); - TQScrollView::resizeEvent( e ); - if ( currentItemVisible ) - ensureCurrentVisible(); - if ( d->current ) - viewport()->tqrepaint( tqitemRect( d->current ), FALSE ); - } else if ( ( d->columnMode == FitToWidth || d->rowMode == FitToHeight ) && !(isVisible()) ) { - TQScrollView::resizeEvent( e ); - } else if ( d->layoutDirty ) { - d->resizeTimer->start( 100, TRUE ); - resizeContents( contentsWidth() - ( e->oldSize().width() - e->size().width() ), - contentsHeight() - ( e->oldSize().height() - e->size().height() ) ); - TQScrollView::resizeEvent( e ); - } else { - TQScrollView::resizeEvent( e ); - } -} - -/*! - \internal -*/ - -void TQListBox::adjustItems() -{ - triggerUpdate( TRUE ); - ensureCurrentVisible(); -} - - -/*! - Provided for compatibility with the old TQListBox. We recommend - using TQListBoxItem::paint() instead. - - Repaints the cell at \a row, \a col using painter \a p. -*/ - -void TQListBox::paintCell( TQPainter * p, int row, int col ) -{ - bool drawActiveSelection = hasFocus() || d->inMenuMode || - !tqstyle().tqstyleHint( TQStyle::SH_ItemView_ChangeHighlightOnFocus, this ); - const TQColorGroup &g = ( drawActiveSelection ? tqcolorGroup() : tqpalette().inactive() ); - - int cw = d->columnPos[col+1] - d->columnPos[col]; - int ch = d->rowPos[row+1] - d->rowPos[row]; - TQListBoxItem * i = item( col*numRows()+row ); - p->save(); - if ( i->s ) { - if ( i->custom_highlight ) { - p->fillRect( 0, 0, cw, ch, - g.brush( TQPalette::backgroundRoleFromMode( viewport()->backgroundMode() ) ) ); - p->setPen( g.highlightedText() ); - p->setBackgroundColor( g.highlight() ); - } - else if ( numColumns() == 1 ) { - p->fillRect( 0, 0, cw, ch, g.brush( TQColorGroup::Highlight ) ); - p->setPen( g.highlightedText() ); - p->setBackgroundColor( g.highlight() ); - } else { - int iw = i->width( this ); - p->fillRect( 0, 0, iw, ch, g.brush( TQColorGroup::Highlight ) ); - p->fillRect( iw, 0, cw - iw + 1, ch, - g.brush( TQPalette::backgroundRoleFromMode( viewport()->backgroundMode() ) ) ); - p->setPen( g.highlightedText() ); - p->setBackgroundColor( g.highlight() ); - } - } else { - p->fillRect( 0, 0, cw, ch, - g.brush( TQPalette::backgroundRoleFromMode( viewport()->backgroundMode() ) ) ); - } - - i->paint( p ); - - if ( d->current == i && hasFocus() && !i->custom_highlight ) { - if ( numColumns() > 1 ) - cw = i->width( this ); - - tqstyle().tqdrawPrimitive( TQStyle::PE_FocusRect, p, TQRect( 0, 0, cw, ch ), g, - TQStyle::Style_FocusAtBorder, - TQStyleOption(i->isSelected() ? g.highlight() : g.base() ) ); - } - - p->restore(); -} - -/*! - Returns the width of the widest item in the list box. -*/ - -long TQListBox::maxItemWidth() const -{ - if ( d->layoutDirty ) - doLayout(); - long m = 0; - int i = d->columnPos.size(); - while( i-- ) - if ( m < d->columnPos[i] ) - m = d->columnPos[i]; - return m; -} - - -/*! \reimp */ - -void TQListBox::showEvent( TQShowEvent * ) -{ - d->ignoreMoves = FALSE; - d->mousePressRow = -1; - d->mousePressColumn = -1; - d->mustPaintAll = FALSE; - ensureCurrentVisible(); -} - -#ifndef TQT_NO_COMPAT - -/*! - \obsolete - - Returns the vertical pixel-coordinate in \a *yPos, of the list box - item at position \a index in the list. Returns FALSE if the item is - outside the visible area. -*/ -bool TQListBox::itemYPos( int index, int *yPos ) const -{ - qObsolete( "TQListBox", "itemYPos" ); - TQListBoxItem* i = item(index); - if ( !i ) - return FALSE; - if ( yPos ) - *yPos = i->y; - return TRUE; -} - -#endif - -/*! - \fn bool TQListBoxItem::isSelected() const - - Returns TRUE if the item is selected; otherwise returns FALSE. - - \sa TQListBox::isSelected(), isCurrent() -*/ - -/*! - \fn bool TQListBoxItem::selected() const - \obsolete -*/ - -/*! - Returns TRUE if the item is the current item; otherwise returns - FALSE. - - \sa TQListBox::currentItem(), TQListBox::item(), isSelected() -*/ -bool TQListBoxItem::isCurrent() const -{ - return listBox() && listBox()->hasFocus() && - listBox()->item( listBox()->currentItem() ) == this; -} -/*! - \fn bool TQListBoxItem::current() const - \obsolete -*/ - -/*! - \fn void TQListBox::centerCurrentItem() - \obsolete - - This function does exactly the same as ensureCurrentVisible() - - \sa TQListBox::ensureCurrentVisible() -*/ - -/*! - Returns a pointer to the list box containing this item. -*/ - -TQListBox * TQListBoxItem::listBox() const -{ - return lbox; -} - - -/*! - Removes \a item from the list box and causes an update of the - screen display. The item is not deleted. You should normally not - need to call this function because TQListBoxItem::~TQListBoxItem() - calls it. The normal way to delete an item is with \c delete. - - \sa TQListBox::insertItem() -*/ -void TQListBox::takeItem( const TQListBoxItem * item ) -{ - if ( !item || d->clearing ) - return; - d->cache = 0; - d->count--; - if ( item == d->last ) - d->last = d->last->p; - if ( item->p && item->p->n == item ) - item->p->n = item->n; - if ( item->n && item->n->p == item ) - item->n->p = item->p; - if ( d->head == item ) { - d->head = item->n; - d->currentColumn = d->currentRow = -1; - } - - if ( d->current == item ) { - d->current = item->n ? item->n : item->p; - TQListBoxItem *i = d->current; - TQString tmp; - if ( i ) - tmp = i->text(); - int tmp2 = index( i ); - emit highlighted( i ); - if ( !tmp.isNull() ) - emit highlighted( tmp ); - emit highlighted( tmp2 ); - emit currentChanged( i ); - } - if ( d->tmpCurrent == item ) - d->tmpCurrent = d->current; - if ( d->selectAnchor == item ) - d->selectAnchor = d->current; - - if ( item->s ) - emit selectionChanged(); - ((TQListBoxItem *)item)->lbox = 0; - triggerUpdate( TRUE ); -} - -/*! - \internal - Finds the next item after start beginning with \a text. -*/ - -int TQListBoxPrivate::findItemByName( int start, const TQString &text ) -{ - if ( start < 0 || (uint)start >= listBox->count() ) - start = 0; - TQString match = text.lower(); - if ( match.length() < 1 ) - return start; - TQString curText; - int item = start; - do { - curText = listBox->text( item ).lower(); - if ( curText.startsWith( match ) ) - return item; - item++; - if ( (uint)item == listBox->count() ) - item = 0; - } while ( item != start ); - return -1; -} - -/*! - \internal --- obsolete! -*/ - -void TQListBox::clearInputString() -{ - d->currInputString = TQString::null; -} - -/*! - Finds the first list box item that has the text \a text and - returns it, or returns 0 of no such item could be found. - The search starts from the current item if the current item exists, - otherwise it starts from the first list box item. - If \c ComparisonFlags are specified in \a compare then these flags - are used, otherwise the default is a case-insensitive, "begins - with" search. - - \sa TQt::StringComparisonMode -*/ - -TQListBoxItem *TQListBox::findItem( const TQString &text, TQt::ComparisonFlags compare ) const -{ - if ( text.isEmpty() ) - return 0; - - if ( compare == TQt::CaseSensitive || compare == 0 ) - compare |= TQt::ExactMatch; - - TQString itmtxt; - TQString comtxt = text; - if ( ! (compare & TQt::CaseSensitive ) ) - comtxt = text.lower(); - - TQListBoxItem *item; - if ( d->current ) - item = d->current; - else - item = d->head; - - TQListBoxItem *beginsWithItem = 0; - TQListBoxItem *endsWithItem = 0; - TQListBoxItem *containsItem = 0; - - if ( item ) { - for ( ; item; item = item->n ) { - if ( ! (compare & TQt::CaseSensitive) ) - itmtxt = item->text().lower(); - else - itmtxt = item->text(); - - if ( compare & TQt::ExactMatch && itmtxt == comtxt ) - return item; - if ( compare & TQt::BeginsWith && !beginsWithItem && itmtxt.startsWith( comtxt ) ) - beginsWithItem = containsItem = item; - if ( compare & TQt::EndsWith && !endsWithItem && itmtxt.endsWith( comtxt ) ) - endsWithItem = containsItem = item; - if ( compare & TQt::Contains && !containsItem && itmtxt.contains( comtxt ) ) - containsItem = item; - } - - if ( d->current && d->head ) { - item = d->head; - for ( ; item && item != d->current; item = item->n ) { - if ( ! (compare & TQt::CaseSensitive) ) - itmtxt = item->text().lower(); - else - itmtxt = item->text(); - - if ( compare & TQt::ExactMatch && itmtxt == comtxt ) - return item; - if ( compare & TQt::BeginsWith && !beginsWithItem && itmtxt.startsWith( comtxt ) ) - beginsWithItem = containsItem = item; - if ( compare & TQt::EndsWith && !endsWithItem && itmtxt.endsWith( comtxt ) ) - endsWithItem = containsItem = item; - if ( compare & TQt::Contains && !containsItem && itmtxt.contains( comtxt ) ) - containsItem = item; - } - } - } - - // Obey the priorities - if ( beginsWithItem ) - return beginsWithItem; - else if ( endsWithItem ) - return endsWithItem; - else if ( containsItem ) - return containsItem; - return 0; -} - -/*! - \internal -*/ - -void TQListBox::drawRubber() -{ - if ( !d->rubber ) - return; - if ( !d->rubber->width() && !d->rubber->height() ) - return; - TQPainter p( viewport() ); - p.setRasterOp( TQt::NotROP ); - tqstyle().tqdrawPrimitive( TQStyle::PE_RubberBand, &p, d->rubber->normalize(), - tqcolorGroup() ); - p.end(); -} - -/*! - \internal -*/ - -void TQListBox::doRubberSelection( const TQRect &old, const TQRect &rubber ) -{ - TQListBoxItem *i = d->head; - TQRect ir, pr; - bool changed = FALSE; - for ( ; i; i = i->n ) { - ir = tqitemRect( i ); - if ( ir == TQRect( 0, 0, -1, -1 ) ) - continue; - if ( i->isSelected() && !ir.intersects( rubber ) && ir.intersects( old ) ) { - i->s = FALSE; - pr = pr.unite( ir ); - changed = TRUE; - } else if ( !i->isSelected() && ir.intersects( rubber ) ) { - if ( i->isSelectable() ) { - i->s = TRUE; - pr = pr.unite( ir ); - changed = TRUE; - } - } - } - if ( changed ) { - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); -#endif - } - viewport()->tqrepaint( pr, TRUE ); -} - - -/*! - Returns TRUE if the user is selecting items using a rubber band - rectangle; otherwise returns FALSE. -*/ - -bool TQListBox::isRubberSelecting() const -{ - return d->rubber != 0; -} - - -/*! - Returns the item that comes after this in the list box. If this is - the last item, 0 is returned. - - \sa prev() -*/ - -TQListBoxItem *TQListBoxItem::next() const -{ - return n; -} - -/*! - Returns the item which comes before this in the list box. If this - is the first item, 0 is returned. - - \sa next() -*/ - -TQListBoxItem *TQListBoxItem::prev() const -{ - return p; -} - -/*! - Returns the first item in this list box. If the list box is empty, - returns 0. -*/ - -TQListBoxItem *TQListBox::firstItem() const -{ - return d->head; -} - -#if defined(TQ_C_CALLBACKS) -extern "C" { -#endif - -#ifdef TQ_OS_TEMP -static int _cdecl cmpListBoxItems( const void *n1, const void *n2 ) -#else -static int cmpListBoxItems( const void *n1, const void *n2 ) -#endif -{ - if ( !n1 || !n2 ) - return 0; - - TQListBoxPrivate::SortableItem *i1 = (TQListBoxPrivate::SortableItem *)n1; - TQListBoxPrivate::SortableItem *i2 = (TQListBoxPrivate::SortableItem *)n2; - - return i1->item->text().localeAwareCompare( i2->item->text() ); -} - -#if defined(TQ_C_CALLBACKS) -} -#endif - -/*! - If \a ascending is TRUE sorts the items in ascending order; - otherwise sorts in descending order. - - To compare the items, the text (TQListBoxItem::text()) of the items - is used. -*/ - -void TQListBox::sort( bool ascending ) -{ - if ( count() == 0 ) - return; - - d->cache = 0; - - TQListBoxPrivate::SortableItem *items = new TQListBoxPrivate::SortableItem[ count() ]; - - TQListBoxItem *item = d->head; - int i = 0; - for ( ; item; item = item->n ) - items[ i++ ].item = item; - - qsort( items, count(), sizeof( TQListBoxPrivate::SortableItem ), cmpListBoxItems ); - - TQListBoxItem *prev = 0; - item = 0; - if ( ascending ) { - for ( i = 0; i < (int)count(); ++i ) { - item = items[ i ].item; - if ( item ) { - item->p = prev; - item->dirty = TRUE; - if ( item->p ) - item->p->n = item; - item->n = 0; - } - if ( i == 0 ) - d->head = item; - prev = item; - } - } else { - for ( i = (int)count() - 1; i >= 0 ; --i ) { - item = items[ i ].item; - if ( item ) { - item->p = prev; - item->dirty = TRUE; - if ( item->p ) - item->p->n = item; - item->n = 0; - } - if ( i == (int)count() - 1 ) - d->head = item; - prev = item; - } - } - d->last = item; - - delete [] items; - - // We have to update explicitly in case the current "vieport" overlaps the - // new viewport we set (starting at (0,0)). - bool haveToUpdate = contentsX() < visibleWidth() || contentsY() < visibleHeight(); - setContentsPos( 0, 0 ); - if ( haveToUpdate ) - updateContents( 0, 0, visibleWidth(), visibleHeight() ); -} - -void TQListBox::handleItemChange( TQListBoxItem *old, bool shift, bool control ) -{ - if ( d->selectionMode == Single ) { - // nothing - } else if ( d->selectionMode == Extended ) { - if ( shift ) { - selectRange( d->selectAnchor ? d->selectAnchor : old, - d->current, FALSE, TRUE, (d->selectAnchor && !control) ? TRUE : FALSE ); - } else if ( !control ) { - bool block = tqsignalsBlocked(); - blockSignals( TRUE ); - selectAll( FALSE ); - blockSignals( block ); - setSelected( d->current, TRUE ); - } - } else if ( d->selectionMode == Multi ) { - if ( shift ) - selectRange( old, d->current, TRUE, FALSE ); - } -} - -void TQListBox::selectRange( TQListBoxItem *from, TQListBoxItem *to, bool invert, bool includeFirst, bool clearSel ) -{ - if ( !from || !to ) - return; - if ( from == to && !includeFirst ) - return; - TQListBoxItem *i = 0; - int index =0; - int f_idx = -1, t_idx = -1; - for ( i = d->head; i; i = i->n, index++ ) { - if ( i == from ) - f_idx = index; - if ( i == to ) - t_idx = index; - if ( f_idx != -1 && t_idx != -1 ) - break; - } - if ( f_idx > t_idx ) { - i = from; - from = to; - to = i; - if ( !includeFirst ) - to = to->prev(); - } else { - if ( !includeFirst ) - from = from->next(); - } - - bool changed = FALSE; - if ( clearSel ) { - for ( i = d->head; i && i != from; i = i->n ) { - if ( i->s ) { - i->s = FALSE; - changed = TRUE; - updateItem( i ); - } - } - for ( i = to->n; i; i = i->n ) { - if ( i->s ) { - i->s = FALSE; - changed = TRUE; - updateItem( i ); - } - } - } - - for ( i = from; i; i = i->next() ) { - if ( !invert ) { - if ( !i->s && i->isSelectable() ) { - i->s = TRUE; - changed = TRUE; - updateItem( i ); - } - } else { - bool sel = !i->s; - if ( ((bool)i->s != sel && sel && i->isSelectable()) || !sel ) { - i->s = sel; - changed = TRUE; - updateItem( i ); - } - } - if ( i == to ) - break; - } - if ( changed ) { - emit selectionChanged(); -#if defined(TQT_ACCESSIBILITY_SUPPORT) - TQAccessible::updateAccessibility( viewport(), 0, TQAccessible::Selection ); -#endif - } -} - -/*! \reimp */ -void TQListBox::windowActivationChange( bool oldActive ) -{ - if ( oldActive && d->scrollTimer ) - d->scrollTimer->stop(); - if ( tqpalette().active() != tqpalette().inactive() ) - viewport()->update(); - TQScrollView::windowActivationChange( oldActive ); -} - -int TQListBoxItem::RTTI = 0; - -/*! - Returns 0. - - Make your derived classes return their own values for rtti(), and - you can distinguish between listbox items. You should use values - greater than 1000 preferably a large random number, to allow for - extensions to this class. -*/ - -int TQListBoxItem::rtti() const -{ - return RTTI; -} - -#endif // TQT_NO_LISTBOX |