diff options
Diffstat (limited to 'src/dialogs/tqdialog.cpp')
| -rw-r--r-- | src/dialogs/tqdialog.cpp | 1180 |
1 files changed, 1180 insertions, 0 deletions
diff --git a/src/dialogs/tqdialog.cpp b/src/dialogs/tqdialog.cpp new file mode 100644 index 000000000..f3f05ae50 --- /dev/null +++ b/src/dialogs/tqdialog.cpp @@ -0,0 +1,1180 @@ +/**************************************************************************** +** +** Implementation of TQDialog class +** +** Created : 950502 +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the dialogs 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 "tqdialog.h" + +#ifndef TQT_NO_DIALOG + +#include "tqpushbutton.h" +#include "ntqfocusdata.h" +#include "ntqapplication.h" +#include "tqobjectlist.h" +#include "tqwidgetlist.h" +#include "ntqlayout.h" +#include "tqsizegrip.h" +#include "tqwhatsthis.h" +#include "tqpopupmenu.h" +#include "ntqcursor.h" +#if defined(QT_ACCESSIBILITY_SUPPORT) +#include "ntqaccessible.h" +#endif +#if defined( Q_OS_TEMP ) +#include "qt_windows.h" +#endif + +/*! + \class TQDialog + \brief The TQDialog class is the base class of dialog windows. + + \ingroup dialogs + \ingroup abstractwidgets + \mainclass + + A dialog window is a top-level window mostly used for short-term + tasks and brief communications with the user. TQDialogs may be + modal or modeless. TQDialogs support \link #extensibility + extensibility\endlink and can provide a \link #return return + value\endlink. They can have \link #default default + buttons\endlink. TQDialogs can also have a TQSizeGrip in their + lower-right corner, using setSizeGripEnabled(). + + Note that TQDialog uses the parent widget slightly differently from + other classes in TQt. A dialog is always a top-level widget, but if + it has a parent, its default location is centered on top of the + parent's top-level widget (if it is not top-level itself). It will + also share the parent's taskbar entry. + + \target modal + \section1 Modal Dialogs + + A <b>modal</b> dialog is a dialog that blocks input to other + visible windows in the same application. Users must finish + interacting with the dialog and close it before they can access + any other window in the application. Dialogs that are used to + request a file name from the user or that are used to set + application preferences are usually modal. + + The most common way to display a modal dialog is to call its + exec() function. When the user closes the dialog, exec() will + provide a useful \link #return return value\endlink. Typically we + connect a default button, e.g. "OK", to the accept() slot and a + "Cancel" button to the reject() slot, to get the dialog to close + and return the appropriate value. Alternatively you can connect to + the done() slot, passing it \c Accepted or \c Rejected. + + An alternative is to call setModal(TRUE), then show(). Unlike + exec(), show() returns control to the caller immediately. Calling + setModal(TRUE) is especially useful for progress dialogs, where + the user must have the ability to interact with the dialog, e.g. + to cancel a long running operation. If you use show() and + setModal(TRUE) together you must call + TQApplication::processEvents() periodically during processing to + enable the user to interact with the dialog. (See \l + TQProgressDialog.) + + \target modeless + \section1 Modeless Dialogs + + A <b>modeless</b> dialog is a dialog that operates + independently of other windows in the same application. Find and + replace dialogs in word-processors are often modeless to allow the + user to interact with both the application's main window and with + the dialog. + + Modeless dialogs are displayed using show(), which returns control + to the caller immediately. + + \target default + \section1 Default button + + A dialog's \e default button is the button that's pressed when the + user presses Enter (Return). This button is used to signify that + the user accepts the dialog's settings and wants to close the + dialog. Use TQPushButton::setDefault(), TQPushButton::isDefault() + and TQPushButton::autoDefault() to set and control the dialog's + default button. + + \target escapekey + \section1 Escape Key + + If the user presses the Esc key in a dialog, TQDialog::reject() + will be called. This will cause the window to close: the \link + TQCloseEvent closeEvent \endlink cannot be \link + TQCloseEvent::ignore() ignored \endlink. + + \target extensibility + \section1 Extensibility + + Extensibility is the ability to show the dialog in two ways: a + partial dialog that shows the most commonly used options, and a + full dialog that shows all the options. Typically an extensible + dialog will initially appear as a partial dialog, but with a + "More" toggle button. If the user presses the "More" button down, + the full dialog will appear. The extension widget will be resized + to its sizeHint(). If orientation is \c Horizontal the extension + widget's height() will be expanded to the height() of the dialog. + If the orientation is \c Vertical the extension widget's width() + will be expanded to the width() of the dialog. Extensibility is + controlled with setExtension(), setOrientation() and + showExtension(). + + \target return + \section1 Return value (modal dialogs) + + Modal dialogs are often used in situations where a return value is + required, e.g. to indicate whether the user pressed "OK" or + "Cancel". A dialog can be closed by calling the accept() or the + reject() slots, and exec() will return \c Accepted or \c Rejected + as appropriate. The exec() call returns the result of the dialog. + The result is also available from result() if the dialog has not + been destroyed. If the \c WDestructiveClose flag is set, the + dialog is deleted after exec() returns. + + \target examples + \section1 Examples + + A modal dialog. + + \quotefile network/networkprotocol/view.cpp + \skipto TQFileDialog *dlg + \printuntil return + + A modeless dialog. After the show() call, control returns to the main + event loop. + \quotefile life/main.cpp + \skipto argv + \printuntil TQApplication + \skipto scale + \printline + \skipto LifeDialog + \printuntil show + \skipto exec + \printuntil } + + \sa TQTabDialog TQWidget TQProgressDialog + \link guibooks.html#fowler GUI Design Handbook: Dialogs, Standard\endlink +*/ + +/*! \enum TQDialog::DialogCode + + The value returned by a modal dialog. + + \value Accepted + \value Rejected + +*/ + +/*! + \property TQDialog::sizeGripEnabled + \brief whether the size grip is enabled + + A TQSizeGrip is placed in the bottom right corner of the dialog when this + property is enabled. By default, the size grip is disabled. +*/ + +class TQDialogPrivate : public TQt +{ +public: + + TQDialogPrivate() + : mainDef(0), orientation(Horizontal),extension(0), doShowExtension(FALSE) +#ifndef TQT_NO_SIZEGRIP + ,resizer(0) +#endif + { + } + + TQPushButton* mainDef; + Orientation orientation; + TQWidget* extension; + bool doShowExtension; + TQSize size, min, max; +#ifndef TQT_NO_SIZEGRIP + TQSizeGrip* resizer; +#endif + TQPoint lastRMBPress; + TQPoint relPos; // relative position to the main window +}; + +/*! + Constructs a dialog called \a name, with parent \a parent. + + A dialog is always a top-level widget, but if it has a parent, its + default location is centered on top of the parent. It will also + share the parent's taskbar entry. + + The widget flags \a f are passed on to the TQWidget constructor. + If, for example, you don't want a What's This button in the titlebar + of the dialog, pass WStyle_Customize | WStyle_NormalBorder | + WStyle_Title | WStyle_SysMenu in \a f. + + \warning In TQt 3.2, the \a modal flag is obsolete. There is now a + setModal() function that can be used for obtaining a modal behavior + when calling show(). This is rarely needed, because modal dialogs + are usually invoked using exec(), which ignores the \a modal flag. + + \sa TQWidget::setWFlags() TQt::WidgetFlags +*/ + +TQDialog::TQDialog( TQWidget *parent, const char *name, bool modal, WFlags f ) + : TQWidget( parent, name, + (modal ? (f|WShowModal) : f) | WType_Dialog ), + rescode(0), did_move(0), has_relpos(0), did_resize(0), in_loop(0) +{ + d = new TQDialogPrivate; +} + +/*! + Destroys the TQDialog, deleting all its children. +*/ + +TQDialog::~TQDialog() +{ + // Need to hide() here, as our (to-be) overridden hide() + // will not be called in ~TQWidget. + hide(); + delete d; +} + +/*! + \internal + This function is called by the push button \a pushButton when it + becomes the default button. If \a pushButton is 0, the dialogs + default default button becomes the default button. This is what a + push button calls when it loses focus. +*/ + +void TQDialog::setDefault( TQPushButton *pushButton ) +{ +#ifndef TQT_NO_PUSHBUTTON + TQObjectList *list = queryList( "TQPushButton" ); + Q_ASSERT(list); + TQObjectListIt it( *list ); + TQPushButton *pb; + bool hasMain = FALSE; + while ( (pb = (TQPushButton*)it.current()) ) { + ++it; + if ( pb->topLevelWidget() != this ) + continue; + if ( pb == d->mainDef ) + hasMain = TRUE; + if ( pb != pushButton ) + pb->setDefault( FALSE ); + } + if (!pushButton && hasMain) + d->mainDef->setDefault( TRUE ); + if (!hasMain) + d->mainDef = pushButton; + delete list; +#endif +} + +/*! + \internal + This function sets the default default pushbutton to \a pushButton. + This function is called by TQPushButton::setDefault(). +*/ +void TQDialog::setMainDefault( TQPushButton *pushButton ) +{ +#ifndef TQT_NO_PUSHBUTTON + d->mainDef = 0; + setDefault(pushButton); +#endif +} + +/*! + \internal + Hides the default button indicator. Called when non auto-default + push button get focus. + */ +void TQDialog::hideDefault() +{ +#ifndef TQT_NO_PUSHBUTTON + TQObjectList *list = queryList( "TQPushButton" ); + TQObjectListIt it( *list ); + TQPushButton *pb; + while ( (pb = (TQPushButton*)it.current()) ) { + ++it; + pb->setDefault( FALSE ); + } + delete list; +#endif +} + +#ifdef Q_OS_TEMP +/*! + \internal + Hides special buttons which are rather shown in the titlebar + on WinCE, to conserve screen space. +*/ +# include "ntqmessagebox.h" +extern const char * mb_texts[]; // Defined in qmessagebox.cpp +void TQDialog::hideSpecial() +{ + // "OK" buttons are hidden, and (Ok) shown on titlebar + // "Cancel" buttons are hidden, and (X) shown on titlebar + // "Help" buttons are hidden, and (?) shown on titlebar + bool showOK = FALSE, + showX = FALSE, + showQ = FALSE; + TQObjectList *list = queryList( "TQPushButton" ); + TQObjectListIt it( *list ); + TQPushButton *pb; + while ( (pb = (TQPushButton*)it.current()) ) { + if ( !showOK && + pb->text() == tqApp->translate( "TQMessageBox", mb_texts[TQMessageBox::Ok] ) ) { + pb->hide(); + showOK = TRUE; + } else if ( !showX && + pb->text() == tqApp->translate( "TQMessageBox", mb_texts[TQMessageBox::Cancel] ) ) { + pb->hide(); + showX = TRUE; + } else if ( !showQ && + pb->text() == tqApp->tr("Help") ) { + pb->hide(); + showQ = TRUE; + } + ++it; + } + delete list; + if ( showOK || showQ ) { + DWORD ext = GetWindowLong( winId(), GWL_EXSTYLE ); + ext |= showOK ? WS_EX_CAPTIONOKBTN : 0; + ext |= showQ ? WS_EX_CONTEXTHELP: 0; + SetWindowLong( winId(), GWL_EXSTYLE, ext ); + } + if ( !showX ) { + DWORD ext = GetWindowLong( winId(), GWL_STYLE ); + ext &= ~WS_SYSMENU; + SetWindowLong( winId(), GWL_STYLE, ext ); + } +} +#endif + +/*! + \fn int TQDialog::result() const + + Returns the modal dialog's result code, \c Accepted or \c Rejected. + + Do not call this function if the dialog was constructed with the \c + WDestructiveClose flag. +*/ + +/*! + \fn void TQDialog::setResult( int i ) + + Sets the modal dialog's result code to \a i. +*/ + + +/*! + Shows the dialog as a \link #modal modal \endlink dialog, + blocking until the user closes it. The function returns a \l + DialogCode result. + + Users cannot interact with any other window in the same + application until they close the dialog. + + \sa show(), result() +*/ + +int TQDialog::exec() +{ + if ( in_loop ) { + tqWarning( "TQDialog::exec: Recursive call detected" ); + return -1; + } + + bool destructiveClose = testWFlags( WDestructiveClose ); + clearWFlags( WDestructiveClose ); + + bool wasShowModal = testWFlags( WShowModal ); + setWFlags( WShowModal ); + setResult( 0 ); + + show(); + + in_loop = TRUE; + tqApp->enter_loop(); + + if ( !wasShowModal ) + clearWFlags( WShowModal ); + + int res = result(); + + if ( destructiveClose ) + delete this; + + return res; +} + + +/*! Closes the dialog and sets its result code to \a r. If this dialog + is shown with exec(), done() causes the local event loop to finish, + and exec() to return \a r. + + As with TQWidget::close(), done() deletes the dialog if the \c + WDestructiveClose flag is set. If the dialog is the application's + main widget, the application terminates. If the dialog is the + last window closed, the TQApplication::lastWindowClosed() signal is + emitted. + + \sa accept(), reject(), TQApplication::mainWidget(), TQApplication::quit() +*/ + +void TQDialog::done( int r ) +{ + hide(); + setResult( r ); + + // emulate TQWidget::close() + bool isMain = tqApp->mainWidget() == this; + bool checkLastWindowClosed = isTopLevel() && !isPopup(); + if ( checkLastWindowClosed + && tqApp->receivers(TQ_SIGNAL(lastWindowClosed())) ) { + /* if there is no non-withdrawn top level window left (except + the desktop, popups, or dialogs with parents), we emit the + lastWindowClosed signal */ + TQWidgetList *list = tqApp->topLevelWidgets(); + TQWidget *widget = list->first(); + while ( widget ) { + if ( !widget->isHidden() + && !widget->isDesktop() + && !widget->isPopup() + && (!widget->isDialog() || !widget->parentWidget())) + break; + widget = list->next(); + } + delete list; + if ( widget == 0 ) + emit tqApp->lastWindowClosed(); + } + if ( isMain ) + tqApp->quit(); + else if ( testWFlags(WDestructiveClose) ) { + clearWFlags(WDestructiveClose); + deleteLater(); + } +} + +/*! + Hides the modal dialog and sets the result code to \c Accepted. + + \sa reject() done() +*/ + +void TQDialog::accept() +{ + done( Accepted ); +} + +/*! + Hides the modal dialog and sets the result code to \c Rejected. + + \sa accept() done() +*/ + +void TQDialog::reject() +{ + done( Rejected ); +} + +/*! \reimp */ +bool TQDialog::eventFilter( TQObject *o, TQEvent *e ) +{ + return TQWidget::eventFilter( o, e ); +} + +/***************************************************************************** + Event handlers + *****************************************************************************/ + +/*! \reimp */ +void TQDialog::contextMenuEvent( TQContextMenuEvent *e ) +{ +#if !defined(TQT_NO_WHATSTHIS) && !defined(TQT_NO_POPUPMENU) + TQWidget* w = childAt( e->pos(), TRUE ); + if ( !w ) + return; + TQString s; + while ( s.isEmpty() && w ) { + s = TQWhatsThis::textFor( w, e->pos(), FALSE ); + if ( s.isEmpty() ) + w = w->parentWidget(TRUE); + } + if ( !s.isEmpty() ) { + TQPopupMenu p(0,"qt_whats_this_menu"); + p.insertItem( tr("What's This?"), 42 ); + if ( p.exec( e->globalPos() ) >= 42 ) + TQWhatsThis::display( s, w->mapToGlobal( w->rect().center() ), w ); + } +#endif +} + +/*! \reimp */ +void TQDialog::keyPressEvent( TQKeyEvent *e ) +{ + // Calls reject() if Escape is pressed. Simulates a button + // click for the default button if Enter is pressed. Move focus + // for the arrow keys. Ignore the rest. +#ifdef Q_OS_MAC + if(e->state() == ControlButton && e->key() == Key_Period) { + reject(); + } else +#endif + if ( e->state() == 0 || ( e->state() & Keypad && e->key() == Key_Enter ) ) { + switch ( e->key() ) { + case Key_Enter: + case Key_Return: { +#ifndef TQT_NO_PUSHBUTTON + TQObjectList *list = queryList( "TQPushButton" ); + TQObjectListIt it( *list ); + TQPushButton *pb; + while ( (pb = (TQPushButton*)it.current()) ) { + if ( pb->isDefault() && pb->isVisible() ) { + delete list; + if ( pb->isEnabled() ) { + emit pb->clicked(); + } + return; + } + ++it; + } + delete list; +#endif + } + break; + case Key_Escape: + reject(); + break; + case Key_Up: + case Key_Left: + if ( focusWidget() && + ( focusWidget()->focusPolicy() == TQWidget::StrongFocus || + focusWidget()->focusPolicy() == TQWidget::WheelFocus ) ) { + e->ignore(); + break; + } + // call ours, since c++ blocks us from calling the one + // belonging to focusWidget(). + TQFocusEvent::setReason(TQFocusEvent::Backtab); + focusNextPrevChild( FALSE ); + TQFocusEvent::resetReason(); + break; + case Key_Down: + case Key_Right: + if ( focusWidget() && + ( focusWidget()->focusPolicy() == TQWidget::StrongFocus || + focusWidget()->focusPolicy() == TQWidget::WheelFocus ) ) { + e->ignore(); + break; + } + TQFocusEvent::setReason(TQFocusEvent::Tab); + focusNextPrevChild( TRUE ); + TQFocusEvent::resetReason(); + break; + default: + e->ignore(); + return; + } + } else { + e->ignore(); + } +} + +/*! \reimp */ +void TQDialog::closeEvent( TQCloseEvent *e ) +{ +#ifndef TQT_NO_WHATSTHIS + if ( isModal() && TQWhatsThis::inWhatsThisMode() ) + TQWhatsThis::leaveWhatsThisMode(); +#endif + if ( isShown() ) + reject(); + if ( isHidden() ) + e->accept(); +} + +#ifdef Q_OS_TEMP +/*! \internal + \reimp +*/ +bool TQDialog::event( TQEvent *e ) +{ + switch ( e->type() ) { + case TQEvent::OkRequest: + case TQEvent::HelpRequest: + { + TQString bName = + (e->type() == TQEvent::OkRequest) + ? tqApp->translate( "TQMessageBox", mb_texts[TQMessageBox::Ok] ) + : tqApp->tr( "Help" ); + + TQObjectList *list = queryList( "TQPushButton" ); + TQObjectListIt it( *list ); + TQPushButton *pb; + while ( (pb = (TQPushButton*)it.current()) ) { + if ( pb->text() == bName ) { + delete list; + if ( pb->isEnabled() ) + emit pb->clicked(); + return pb->isEnabled(); + } + ++it; + } + delete list; + } + } + return TQWidget::event( e ); +} +#endif + + +/***************************************************************************** + Geometry management. + *****************************************************************************/ + +#if defined(TQ_WS_X11) +extern "C" { int XSetTransientForHint( Display *, unsigned long, unsigned long ); } +#include <private/qt_x11_p.h> +#undef FocusIn +// defined in qapplication_x11.cpp +extern Atom qt_net_wm_full_placement; +extern bool qt_net_supports(Atom atom); +#endif // TQ_WS_X11 + +/*! + Shows the dialog as a \link #modeless modeless \endlink dialog. + Control returns immediately to the calling code. + + The dialog will be modal or modeless according to the value + of the \l modal property. + + \sa exec(), modal +*/ + +void TQDialog::show() +{ + if ( testWState(WState_Visible) ) + return; + + uint state = windowState(); + + if ( !did_resize ) + adjustSize(); + if( !qt_net_supports( qt_net_wm_full_placement )) { + if ( has_relpos && !did_move ) { + adjustPositionInternal( parentWidget(), TRUE ); + } else if ( !did_move ) { + adjustPositionInternal( parentWidget() ); + } + } + + if (windowState() != state) + setWindowState(state); + +#if defined(TQ_WS_X11) + if (!parentWidget() && testWFlags(WShowModal) + && tqApp->mainWidget() && tqApp->mainWidget()->isVisible() + && !tqApp->mainWidget()->isMinimized()) { + // make sure the transient for hint is set properly for modal dialogs + x11SetWindowTransient( tqApp->mainWidget()); + } +#endif // TQ_WS_X11 + +#ifdef Q_OS_TEMP + hideSpecial(); +#endif + + TQWidget::show(); + showExtension( d->doShowExtension ); +#ifndef TQT_NO_PUSHBUTTON + TQWidget *fw = focusWidget(); + TQFocusData *fd = focusData(); + + /* + The following block is to handle a special case, and does not + really follow propper logic in concern of autoDefault and TAB + order. However, it's here to ease usage for the users. If a + dialog has a default TQPushButton, and first widget in the TAB + order also is a TQPushButton, then we give focus to the main + default TQPushButton. This simplifies code for the developers, + and actually catches most cases... If not, then they simply + have to use [widget*]->setFocus() themselves... + */ + if ( !fw || fw->focusPolicy() == NoFocus ) { + fd->home(); // Skip main form + TQWidget *first = fd->next(); // Get first main widget + if ( d->mainDef && + first != d->mainDef && + ::tqt_cast<TQPushButton*>(first) ) + d->mainDef->setFocus(); + } + + if ( !d->mainDef && isTopLevel() ) { + if ( !fw || fw->focusPolicy() == NoFocus ) { + focusNextPrevChild( TRUE ); + fw = focusWidget(); + } + if ( fw ) { + fd = focusData(); + TQWidget *home = fd->home(); + TQWidget *candidate = home; + Q_ASSERT( candidate == fw ); + do { + TQPushButton *pb = ::tqt_cast<TQPushButton*>(candidate); + if ( pb && pb->autoDefault() ) { + pb->setDefault( TRUE ); + break; + } + candidate = fd->next(); + } while ( candidate != home ); + } + } + if ( fw ) { + TQFocusEvent e( TQEvent::FocusIn ); + TQFocusEvent::setReason( TQFocusEvent::Tab ); + TQApplication::sendEvent( fw, &e ); + TQFocusEvent::resetReason(); + } + +#endif +#if defined(QT_ACCESSIBILITY_SUPPORT) + TQAccessible::updateAccessibility( this, 0, TQAccessible::DialogStart ); +#endif +} + +/*! \internal */ +void TQDialog::adjustPosition( TQWidget* w) +{ + adjustPositionInternal( w ); +} + + +void TQDialog::adjustPositionInternal( TQWidget*w, bool useRelPos) +{ + /* need to make sure these events are already sent to be sure + our information below is correct --sam */ + TQApplication::sendPostedEvents( this, TQEvent::LayoutHint ); + TQApplication::sendPostedEvents( this, TQEvent::Resize ); + + // processing the events might call polish(), which is a nice place + // to restore geometries, so return if the dialog has been positioned + if ( did_move || has_relpos ) + return; + + TQPoint p( 0, 0 ); + int extraw = 0, extrah = 0, scrn = 0; + if ( w ) + w = w->topLevelWidget(); + TQRect desk; + if ( w ) { + // Use mapToGlobal rather than geometry() in case w might + // be embedded in another application + scrn = TQApplication::desktop()->screenNumber( w->mapToGlobal( TQPoint(0,0) ) ); + } else if ( TQApplication::desktop()->isVirtualDesktop() ) { + scrn = TQApplication::desktop()->screenNumber( TQCursor::pos() ); + } else { + scrn = TQApplication::desktop()->screenNumber( this ); + } + desk = TQApplication::desktop()->availableGeometry( scrn ); + + TQWidgetList *list = TQApplication::topLevelWidgets(); + TQWidgetListIt it( *list ); + while ( (extraw == 0 || extrah == 0) && + it.current() != 0 ) { + int framew, frameh; + TQWidget * current = it.current(); + ++it; + if ( ! current->isVisible() ) + continue; + + framew = current->geometry().x() - current->x(); + frameh = current->geometry().y() - current->y(); + + extraw = TQMAX( extraw, framew ); + extrah = TQMAX( extrah, frameh ); + } + delete list; + + // sanity check for decoration frames. With embedding, we + // might get extraordinary values + if ( extraw == 0 || extrah == 0 || extraw >= 10 || extrah >= 40 ) { + extrah = 40; + extraw = 10; + } + + if ( useRelPos && w ) { + p = w->pos() + d->relPos; + } else { +#ifndef Q_OS_TEMP + if ( w ) { + // Use mapToGlobal rather than geometry() in case w might + // be embedded in another application + TQPoint pp = w->mapToGlobal( TQPoint(0,0) ); + p = TQPoint( pp.x() + w->width()/2, + pp.y() + w->height()/ 2 ); + } else { + // p = middle of the desktop + p = TQPoint( desk.x() + desk.width()/2, desk.y() + desk.height()/2 ); + } +#else + p = TQPoint( desk.x() + desk.width()/2, desk.y() + desk.height()/2 ); +#endif + + // p = origin of this + p = TQPoint( p.x()-width()/2 - extraw, + p.y()-height()/2 - extrah ); + } + + + if ( p.x() + extraw + width() > desk.x() + desk.width() ) + p.setX( desk.x() + desk.width() - width() - extraw ); + if ( p.x() < desk.x() ) + p.setX( desk.x() ); + + if ( p.y() + extrah + height() > desk.y() + desk.height() ) + p.setY( desk.y() + desk.height() - height() - extrah ); + if ( p.y() < desk.y() ) + p.setY( desk.y() ); + + move( p ); + did_move = !useRelPos; +} + + +/*! \reimp */ +void TQDialog::hide() +{ + if ( isHidden() ) + return; + +#if defined(QT_ACCESSIBILITY_SUPPORT) + if ( isVisible() ) + TQAccessible::updateAccessibility( this, 0, TQAccessible::DialogEnd ); +#endif + + if ( parentWidget() && !did_move ) { + d->relPos = pos() - parentWidget()->topLevelWidget()->pos(); + has_relpos = 1; + } + + // Reimplemented to exit a modal when the dialog is hidden. + TQWidget::hide(); + if ( in_loop ) { + in_loop = FALSE; + tqApp->exit_loop(); + } +} + + +/***************************************************************************** + Detects any widget geometry changes done by the user. + *****************************************************************************/ + +/*! \reimp */ + +void TQDialog::move( int x, int y ) +{ + did_move = TRUE; + TQWidget::move( x, y ); +} + +/*! \reimp */ + +void TQDialog::move( const TQPoint &p ) +{ + did_move = TRUE; + TQWidget::move( p ); +} + +/*! \reimp */ + +void TQDialog::resize( int w, int h ) +{ + did_resize = TRUE; + TQWidget::resize( w, h ); +} + +/*! \reimp */ + +void TQDialog::resize( const TQSize &s ) +{ + did_resize = TRUE; + TQWidget::resize( s ); +} + +/*! \reimp */ + +void TQDialog::setGeometry( int x, int y, int w, int h ) +{ + did_move = TRUE; + did_resize = TRUE; + TQWidget::setGeometry( x, y, w, h ); +} + +/*! \reimp */ + +void TQDialog::setGeometry( const TQRect &r ) +{ + did_move = TRUE; + did_resize = TRUE; + TQWidget::setGeometry( r ); +} + + +/*! + If \a orientation is \c Horizontal, the extension will be displayed + to the right of the dialog's main area. If \a orientation is \c + Vertical, the extension will be displayed below the dialog's main + area. + + \sa orientation(), setExtension() +*/ +void TQDialog::setOrientation( Orientation orientation ) +{ + d->orientation = orientation; +} + +/*! + Returns the dialog's extension orientation. + + \sa setOrientation() +*/ +TQt::Orientation TQDialog::orientation() const +{ + return d->orientation; +} + +/*! + Sets the widget, \a extension, to be the dialog's extension, + deleting any previous extension. The dialog takes ownership of the + extension. Note that if 0 is passed any existing extension will be + deleted. + + This function must only be called while the dialog is hidden. + + \sa showExtension(), setOrientation(), extension() + */ +void TQDialog::setExtension( TQWidget* extension ) +{ + delete d->extension; + d->extension = extension; + + if ( !extension ) + return; + + if ( extension->parentWidget() != this ) + extension->reparent( this, TQPoint(0,0) ); + extension->hide(); +} + +/*! + Returns the dialog's extension or 0 if no extension has been + defined. + + \sa setExtension() + */ +TQWidget* TQDialog::extension() const +{ + return d->extension; +} + + +/*! + If \a showIt is TRUE, the dialog's extension is shown; otherwise the + extension is hidden. + + This slot is usually connected to the \l TQButton::toggled() signal + of a TQPushButton. + + A dialog with a visible extension is not resizeable. + + \sa show(), setExtension(), setOrientation() + */ +void TQDialog::showExtension( bool showIt ) +{ + d->doShowExtension = showIt; + if ( !d->extension ) + return; + if ( !testWState(WState_Visible) ) + return; + if ( d->extension->isVisible() == showIt ) + return; + + if ( showIt ) { + d->size = size(); + d->min = minimumSize(); + d->max = maximumSize(); +#ifndef TQT_NO_LAYOUT + if ( layout() ) + layout()->setEnabled( FALSE ); +#endif + TQSize s( d->extension->sizeHint() + .expandedTo( d->extension->minimumSize() ) + .boundedTo( d->extension->maximumSize() ) ); + if ( d->orientation == Horizontal ) { + int h = TQMAX( height(), s.height() ); + d->extension->setGeometry( width(), 0, s.width(), h ); + setFixedSize( width() + s.width(), h ); + } else { + int w = TQMAX( width(), s.width() ); + d->extension->setGeometry( 0, height(), w, s.height() ); + setFixedSize( w, height() + s.height() ); + } + d->extension->show(); + } else { + d->extension->hide(); + // workaround for CDE window manager that won't shrink with (-1,-1) + setMinimumSize( d->min.expandedTo( TQSize( 1, 1 ) ) ); + setMaximumSize( d->max ); + resize( d->size ); +#ifndef TQT_NO_LAYOUT + if ( layout() ) + layout()->setEnabled( TRUE ); +#endif + } +} + + +/*! \reimp */ +TQSize TQDialog::sizeHint() const +{ + if ( d->extension ) { + if ( d->orientation == Horizontal ) + return TQSize( TQWidget::sizeHint().width(), + TQMAX( TQWidget::sizeHint().height(),d->extension->sizeHint().height() ) ); + else + return TQSize( TQMAX( TQWidget::sizeHint().width(), d->extension->sizeHint().width() ), + TQWidget::sizeHint().height() ); + } + + return TQWidget::sizeHint(); +} + + +/*! \reimp */ +TQSize TQDialog::minimumSizeHint() const +{ + if ( d->extension ) { + if (d->orientation == Horizontal ) + return TQSize( TQWidget::minimumSizeHint().width(), + TQMAX( TQWidget::minimumSizeHint().height(), d->extension->minimumSizeHint().height() ) ); + else + return TQSize( TQMAX( TQWidget::minimumSizeHint().width(), d->extension->minimumSizeHint().width() ), + TQWidget::minimumSizeHint().height() ); + } + + return TQWidget::minimumSizeHint(); +} + +/*! \property TQDialog::modal + \brief whether show() should pop up the dialog as modal or modeless + + By default, this property is false and show() pops up the dialog as + modeless. + + exec() ignores the value of this property and always pops up the + dialog as modal. + + \sa show(), exec() +*/ + +void TQDialog::setModal( bool modal ) +{ + if ( modal ) + setWFlags( WShowModal ); + else + clearWFlags( WShowModal ); +} + +bool TQDialog::isModal() const +{ + return testWFlags( WShowModal ) != 0; +} + +bool TQDialog::isSizeGripEnabled() const +{ +#ifndef TQT_NO_SIZEGRIP + return !!d->resizer; +#else + return FALSE; +#endif +} + + +void TQDialog::setSizeGripEnabled(bool enabled) +{ +#ifndef TQT_NO_SIZEGRIP + if ( !enabled != !d->resizer ) { + if ( enabled ) { + d->resizer = new TQSizeGrip( this, "TQDialog::resizer" ); + // adjustSize() processes all events, which is suboptimal + d->resizer->resize( d->resizer->sizeHint() ); + if ( TQApplication::reverseLayout() ) + d->resizer->move( rect().bottomLeft() -d->resizer->rect().bottomLeft() ); + else + d->resizer->move( rect().bottomRight() -d->resizer->rect().bottomRight() ); + d->resizer->raise(); + d->resizer->show(); + } else { + delete d->resizer; + d->resizer = 0; + } + } +#endif //TQT_NO_SIZEGRIP +} + + + +/*! \reimp */ +void TQDialog::resizeEvent( TQResizeEvent * ) +{ +#ifndef TQT_NO_SIZEGRIP + if ( d->resizer ) { + if ( TQApplication::reverseLayout() ) + d->resizer->move( rect().bottomLeft() -d->resizer->rect().bottomLeft() ); + else + d->resizer->move( rect().bottomRight() -d->resizer->rect().bottomRight() ); + } +#endif +} + +#endif // TQT_NO_DIALOG |