diff options
| author | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-08-16 19:11:00 +0900 |
|---|---|---|
| committer | Michele Calgaro <michele.calgaro@yahoo.it> | 2024-08-16 19:11:00 +0900 |
| commit | 82ecd83484c9fa1ede059986ab771e74e33e68ef (patch) | |
| tree | d0e76f19632bb02fc55028625bdb903902e1bac1 /src/kernel/qlayout.cpp | |
| parent | c55ef27a2c511c29a8a82d00bd2ede1fb02cfa41 (diff) | |
| download | tqt-82ecd83484c9fa1ede059986ab771e74e33e68ef.tar.gz tqt-82ecd83484c9fa1ede059986ab771e74e33e68ef.zip | |
Rename layout nt* related files to equivalent tq*
Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
Diffstat (limited to 'src/kernel/qlayout.cpp')
| -rw-r--r-- | src/kernel/qlayout.cpp | 2601 |
1 files changed, 0 insertions, 2601 deletions
diff --git a/src/kernel/qlayout.cpp b/src/kernel/qlayout.cpp deleted file mode 100644 index 5697f20e6..000000000 --- a/src/kernel/qlayout.cpp +++ /dev/null @@ -1,2601 +0,0 @@ -/**************************************************************************** -** -** Implementation of layout classes -** -** Created : 960416 -** -** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. -** -** This file is part of the kernel 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 "ntqlayout.h" - -#ifndef TQT_NO_LAYOUT - -#include "ntqapplication.h" -#include "tqwidget.h" -#include "tqptrlist.h" -#include "tqsizepolicy.h" - -#include "qlayoutengine_p.h" - -/* - Three internal classes related to TQGridLayout: (1) TQGridBox is a - TQLayoutItem with (row, column) information; (2) TQGridMultiBox is a - TQGridBox with (torow, tocolumn) information; (3) TQGridLayoutData is - the internal representation of a TQGridLayout. -*/ - -class TQGridBox -{ -public: - TQGridBox( TQLayoutItem *lit ) { item_ = lit; } - - TQGridBox( TQWidget *wid ) { item_ = new TQWidgetItem( wid ); } - TQGridBox( int w, int h, TQSizePolicy::SizeType hData = TQSizePolicy::Minimum, - TQSizePolicy::SizeType vData = TQSizePolicy::Minimum ) - { item_ = new TQSpacerItem( w, h, hData, vData ); } - ~TQGridBox() { delete item_; } - - TQSize sizeHint() const { return item_->sizeHint(); } - TQSize minimumSize() const { return item_->minimumSize(); } - TQSize maximumSize() const { return item_->maximumSize(); } - TQSizePolicy::ExpandData expanding() const { return item_->expanding(); } - bool isEmpty() const { return item_->isEmpty(); } - - bool hasHeightForWidth() const { return item_->hasHeightForWidth(); } - int heightForWidth( int w ) const { return item_->heightForWidth(w); } - - void setAlignment( int a ) { item_->setAlignment( a ); } - void setGeometry( const TQRect &r ) { item_->setGeometry( r ); } - int alignment() const { return item_->alignment(); } - TQLayoutItem *item() { return item_; } - TQLayoutItem *takeItem() { TQLayoutItem *i = item_; item_ = 0; return i; } - - int hStretch() { return item_->widget() ? - item_->widget()->sizePolicy().horStretch() : 0; } - int vStretch() { return item_->widget() ? - item_->widget()->sizePolicy().verStretch() : 0; } - -private: - friend class TQGridLayoutData; - friend class TQGridLayoutDataIterator; - - TQLayoutItem *item_; - int row, col; -}; - -class TQGridMultiBox -{ -public: - TQGridMultiBox( TQGridBox *box, int toRow, int toCol ) - : box_( box ), torow( toRow ), tocol( toCol ) { } - ~TQGridMultiBox() { delete box_; } - TQGridBox *box() { return box_; } - TQLayoutItem *takeItem() { return box_->takeItem(); } - -private: - friend class TQGridLayoutData; - friend class TQGridLayoutDataIterator; - - TQGridBox *box_; - int torow, tocol; -}; - -class TQGridLayoutData -{ -public: - TQGridLayoutData(); - TQGridLayoutData( int nRows, int nCols ); - ~TQGridLayoutData(); - - void add( TQGridBox*, int row, int col ); - void add( TQGridBox*, int row1, int row2, int col1, int col2 ); - TQSize sizeHint( int ) const; - TQSize minimumSize( int ) const; - TQSize maximumSize( int ) const; - - TQSizePolicy::ExpandData expanding( int spacing ); - - void distribute( TQRect, int ); - inline int numRows() const { return rr; } - inline int numCols() const { return cc; } - inline void expand( int rows, int cols ) - { setSize( TQMAX(rows, rr), TQMAX(cols, cc) ); } - inline void setRowStretch( int r, int s ) - { expand( r + 1, 0 ); rStretch[r] = s; setDirty(); } - inline void setColStretch( int c, int s ) - { expand( 0, c + 1 ); cStretch[c] = s; setDirty(); } - inline int rowStretch( int r ) const { return rStretch[r]; } - inline int colStretch( int c ) const { return cStretch[c]; } - inline void setRowSpacing( int r, int s ) - { expand( r + 1, 0 ); rSpacing[r] = s; setDirty(); } - inline void setColSpacing( int c, int s ) - { expand( 0, c + 1 ); cSpacing[c] = s; setDirty(); } - inline int rowSpacing( int r ) const { return rSpacing[r]; } - inline int colSpacing( int c ) const { return cSpacing[c]; } - - inline void setReversed( bool r, bool c ) { hReversed = c; vReversed = r; } - inline bool horReversed() const { return hReversed; } - inline bool verReversed() const { return vReversed; } - inline void setDirty() { needRecalc = TRUE; hfw_width = -1; } - inline bool isDirty() const { return needRecalc; } - bool hasHeightForWidth( int space ); - int heightForWidth( int, int, int ); - int minimumHeightForWidth( int, int, int ); - - bool findWidget( TQWidget* w, int *row, int *col ); - - inline void getNextPos( int &row, int &col ) { row = nextR; col = nextC; } - inline uint count() const - { return things.count() + ( multi ? multi->count() : 0 ); } - TQRect cellGeometry( int row, int col ) const; - -private: - void setNextPosAfter( int r, int c ); - void recalcHFW( int w, int s ); - void addHfwData ( TQGridBox *box, int width ); - void init(); - TQSize findSize( TQCOORD TQLayoutStruct::*, int ) const; - void addData( TQGridBox *b, bool r = TRUE, bool c = TRUE ); - void setSize( int rows, int cols ); - void setupLayoutData( int space ); - void setupHfwLayoutData( int space ); - - int rr; - int cc; - TQMemArray<TQLayoutStruct> rowData; - TQMemArray<TQLayoutStruct> colData; - TQMemArray<TQLayoutStruct> *hfwData; - TQMemArray<int> rStretch; - TQMemArray<int> cStretch; - TQMemArray<int> rSpacing; - TQMemArray<int> cSpacing; - TQPtrList<TQGridBox> things; - TQPtrList<TQGridMultiBox> *multi; - - int hfw_width; - int hfw_height; - int hfw_minheight; - int nextR; - int nextC; - - uint hReversed : 1; - uint vReversed : 1; - uint needRecalc : 1; - uint has_hfw : 1; - uint addVertical : 1; - - friend class TQGridLayoutDataIterator; -}; - -TQGridLayoutData::TQGridLayoutData() -{ - init(); -} - -TQGridLayoutData::TQGridLayoutData( int nRows, int nCols ) - : rowData( 0 ), colData( 0 ) -{ - init(); - if ( nRows < 0 ) { - nRows = 1; - addVertical = FALSE; - } - if ( nCols < 0 ) { - nCols = 1; - addVertical = TRUE; - } - setSize( nRows, nCols ); -} - -TQGridLayoutData::~TQGridLayoutData() -{ - // must be cleared while the data is still in a stable state - things.clear(); - - delete multi; - delete hfwData; -} - -void TQGridLayoutData::init() -{ - addVertical = FALSE; - setDirty(); - multi = 0; - rr = cc = 0; - nextR = nextC = 0; - hfwData = 0; - things.setAutoDelete( TRUE ); - hReversed = FALSE; - vReversed = FALSE; -} - -bool TQGridLayoutData::hasHeightForWidth( int spacing ) -{ - setupLayoutData( spacing ); - return has_hfw; -} - -/* - Assumes that setupLayoutData() has been called, and that - qGeomCalc() has filled in colData with appropriate values. -*/ -void TQGridLayoutData::recalcHFW( int w, int spacing ) -{ - /* - Go through all children, using colData and heightForWidth() - and put the results in hfw_rowData. - */ - if ( !hfwData ) - hfwData = new TQMemArray<TQLayoutStruct>( rr ); - setupHfwLayoutData( spacing ); - TQMemArray<TQLayoutStruct> &rData = *hfwData; - - int h = 0; - int mh = 0; - int n = 0; - for ( int r = 0; r < rr; r++ ) { - h += rData[r].sizeHint; - mh += rData[r].minimumSize; - if ( !rData[r].empty ) - n++; - } - if ( n ) { - h += ( n - 1 ) * spacing; - mh += ( n - 1 ) * spacing; - } - - hfw_width = w; - hfw_height = TQMIN( TQLAYOUTSIZE_MAX, h ); - hfw_minheight = TQMIN( TQLAYOUTSIZE_MAX, mh ); -} - -int TQGridLayoutData::heightForWidth( int w, int margin, int spacing ) -{ - setupLayoutData( spacing ); - if ( !has_hfw ) - return -1; - if ( w + 2*margin != hfw_width ) { - qGeomCalc( colData, 0, cc, 0, w+2*margin, spacing ); - recalcHFW( w+2*margin, spacing ); - } - return hfw_height + 2*margin; -} - -int TQGridLayoutData::minimumHeightForWidth( int w, int margin, int spacing ) -{ - (void) heightForWidth( w, margin, spacing ); - return has_hfw ? (hfw_minheight + 2*margin) : -1; -} - -bool TQGridLayoutData::findWidget( TQWidget* w, int *row, int *col ) -{ - TQPtrListIterator<TQGridBox> it( things ); - TQGridBox * box; - while ( (box = it.current()) != 0 ) { - ++it; - if ( box->item()->widget() == w ) { - if ( row ) - *row = box->row; - if ( col ) - *col = box->col; - return TRUE; - } - } - if ( multi ) { - TQPtrListIterator<TQGridMultiBox> it( *multi ); - TQGridMultiBox * mbox; - while ( (mbox = it.current()) != 0 ) { - ++it; - box = mbox->box(); - if ( box->item()->widget() == w ) { - if ( row ) - *row = box->row; - if ( col ) - *col = box->col; - return TRUE; - } - - } - } - return FALSE; -} - -TQSize TQGridLayoutData::findSize( TQCOORD TQLayoutStruct::*size, int spacer ) const -{ - TQGridLayoutData *that = (TQGridLayoutData *)this; - that->setupLayoutData( spacer ); - - int w = 0; - int h = 0; - int n = 0; - for ( int r = 0; r < rr; r++ ) { - h = h + rowData[r].*size; - if ( !rowData[r].empty ) - n++; - } - if ( n ) - h += ( n - 1 ) * spacer; - n = 0; - for ( int c = 0; c < cc; c++ ) { - w = w + colData[c].*size; - if ( !colData[c].empty ) - n++; - } - if ( n ) - w += ( n - 1 ) * spacer; - w = TQMIN( TQLAYOUTSIZE_MAX, w ); - h = TQMIN( TQLAYOUTSIZE_MAX, h ); - - return TQSize( w, h ); -} - -TQSizePolicy::ExpandData TQGridLayoutData::expanding( int spacing ) -{ - setupLayoutData( spacing ); - int ret = 0; - - for ( int r = 0; r < rr; r++ ) { - if ( rowData[r].expansive ) { - ret |= (int) TQSizePolicy::Vertically; - break; - } - } - for ( int c = 0; c < cc; c++ ) { - if ( colData[c].expansive ) { - ret |= (int) TQSizePolicy::Horizontally; - break; - } - } - return (TQSizePolicy::ExpandData) ret; -} - -TQSize TQGridLayoutData::sizeHint( int spacer ) const -{ - return findSize( &TQLayoutStruct::sizeHint, spacer ); -} - -TQSize TQGridLayoutData::maximumSize( int spacer ) const -{ - return findSize( &TQLayoutStruct::maximumSize, spacer ); -} - -TQSize TQGridLayoutData::minimumSize( int spacer ) const -{ - return findSize( &TQLayoutStruct::minimumSize, spacer ); -} - -void TQGridLayoutData::setSize( int r, int c ) -{ - if ( (int)rowData.size() < r ) { - int newR = TQMAX( r, rr * 2 ); - rowData.resize( newR ); - rStretch.resize( newR ); - rSpacing.resize( newR ); - for ( int i = rr; i < newR; i++ ) { - rowData[i].init(); - rStretch[i] = 0; - rSpacing[i] = 0; - } - } - if ( (int)colData.size() < c ) { - int newC = TQMAX( c, cc * 2 ); - colData.resize( newC ); - cStretch.resize( newC ); - cSpacing.resize( newC ); - for ( int i = cc; i < newC; i++ ) { - colData[i].init(); - cStretch[i] = 0; - cSpacing[i] = 0; - } - } - - if ( hfwData && (int)hfwData->size() < r ) { - delete hfwData; - hfwData = 0; - hfw_width = -1; - } - rr = r; - cc = c; -} - -void TQGridLayoutData::setNextPosAfter( int row, int col ) -{ - if ( addVertical ) { - if ( (col > nextC) || ((col == nextC) && (row >= nextR)) ) { - nextR = row + 1; - nextC = col; - if ( nextR >= rr ) { - nextR = 0; - nextC++; - } - } - } else { - if ( (row > nextR) || ((row == nextR) && (col >= nextC)) ) { - nextR = row; - nextC = col + 1; - if ( nextC >= cc ) { - nextC = 0; - nextR++; - } - } - } -} - -void TQGridLayoutData::add( TQGridBox *box, int row, int col ) -{ - expand( row+1, col+1 ); - box->row = row; - box->col = col; - things.append( box ); - setDirty(); - setNextPosAfter( row, col ); -} - -void TQGridLayoutData::add( TQGridBox *box, int row1, int row2, int col1, - int col2 ) -{ -#ifdef QT_CHECK_RANGE - if ( row2 >= 0 && row2 < row1 ) - tqWarning( "TQGridLayout: Multi-cell fromRow greater than toRow" ); - if ( col2 >= 0 && col2 < col1 ) - tqWarning( "TQGridLayout: Multi-cell fromCol greater than toCol" ); -#endif - if ( row1 == row2 && col1 == col2 ) { - add( box, row1, col1 ); - return; - } - expand( row2+1, col2+1 ); - box->row = row1; - box->col = col1; - TQGridMultiBox *mbox = new TQGridMultiBox( box, row2, col2 ); - if ( !multi ) { - multi = new TQPtrList<TQGridMultiBox>; - multi->setAutoDelete( TRUE ); - } - multi->append( mbox ); - setDirty(); - if ( col2 < 0 ) - col2 = cc - 1; - - setNextPosAfter( row2, col2 ); -} - -void TQGridLayoutData::addData( TQGridBox *box, bool r, bool c ) -{ - TQSize hint = box->sizeHint(); - TQSize minS = box->minimumSize(); - TQSize maxS = box->maximumSize(); - - if ( c ) { - if ( !cStretch[box->col] ) - colData[box->col].stretch = TQMAX( colData[box->col].stretch, - box->hStretch() ); - colData[box->col].sizeHint = TQMAX( hint.width(), - colData[box->col].sizeHint ); - colData[box->col].minimumSize = TQMAX( minS.width(), - colData[box->col].minimumSize ); - - qMaxExpCalc( colData[box->col].maximumSize, colData[box->col].expansive, - maxS.width(), - box->expanding() & TQSizePolicy::Horizontally ); - } - if ( r ) { - if ( !rStretch[box->row] ) - rowData[box->row].stretch = TQMAX( rowData[box->row].stretch, - box->vStretch() ); - rowData[box->row].sizeHint = TQMAX( hint.height(), - rowData[box->row].sizeHint ); - rowData[box->row].minimumSize = TQMAX( minS.height(), - rowData[box->row].minimumSize ); - - qMaxExpCalc( rowData[box->row].maximumSize, rowData[box->row].expansive, - maxS.height(), - box->expanding() & TQSizePolicy::Vertically ); - } - if ( box->isEmpty() ) { - if ( box->item()->widget() != 0 ) { - /* - Hidden widgets should behave exactly the same as if - there were no widgets at all in the cell. We could have - TQWidgetItem::maximumSize() to return - TQSize(TQLAYOUTSIZE_MAX, TQLAYOUTSIZE_MAX). However, that - value is not suitable for TQBoxLayouts. So let's fix it - here. - */ - if ( c ) - colData[box->col].maximumSize = TQLAYOUTSIZE_MAX; - if ( r ) - rowData[box->row].maximumSize = TQLAYOUTSIZE_MAX; - } - } else { - // Empty boxes (i.e. spacers) do not get borders. This is - // hacky, but compatible. - if ( c ) - colData[box->col].empty = FALSE; - if ( r ) - rowData[box->row].empty = FALSE; - } -} - -static void distributeMultiBox( TQMemArray<TQLayoutStruct> &chain, int spacing, - int start, int end, - int minSize, int sizeHint, - TQMemArray<int> &stretchArray, int stretch ) -{ - int i; - int w = 0; - int wh = 0; - int max = 0; - for ( i = start; i <= end; i++ ) { - w += chain[i].minimumSize; - wh += chain[i].sizeHint; - max += chain[i].maximumSize; - chain[i].empty = FALSE; - if ( stretchArray[i] == 0 ) - chain[i].stretch = TQMAX(chain[i].stretch,stretch); - } - w += spacing * ( end - start ); - wh += spacing * ( end - start ); - max += spacing * ( end - start ); - - if ( max < minSize ) { // implies w < minSize - /* - We must increase the maximum size of at least one of the - items. qGeomCalc() will put the extra space in between the - items. We must recover that extra space and put it - somewhere. It does not really matter where, since the user - can always specify stretch factors and avoid this code. - */ - qGeomCalc( chain, start, end - start + 1, 0, minSize, spacing ); - int pos = 0; - for ( i = start; i <= end; i++ ) { - int nextPos = ( i == end ) ? minSize - 1 : chain[i + 1].pos; - int realSize = nextPos - pos; - if ( i != end ) - realSize -= spacing; - if ( chain[i].minimumSize < realSize ) - chain[i].minimumSize = realSize; - if ( chain[i].maximumSize < chain[i].minimumSize ) - chain[i].maximumSize = chain[i].minimumSize; - pos = nextPos; - } - } else if ( w < minSize ) { - qGeomCalc( chain, start, end - start + 1, 0, minSize, spacing ); - for ( i = start; i <= end; i++ ) { - if ( chain[i].minimumSize < chain[i].size ) - chain[i].minimumSize = chain[i].size; - } - } - - if ( wh < sizeHint ) { - qGeomCalc( chain, start, end - start + 1, 0, sizeHint, spacing ); - for ( i = start; i <= end; i++ ) { - if ( chain[i].sizeHint < chain[i].size ) - chain[i].sizeHint = chain[i].size; - } - } -} - -//#define QT_LAYOUT_DISABLE_CACHING - -void TQGridLayoutData::setupLayoutData( int spacing ) -{ -#ifndef QT_LAYOUT_DISABLE_CACHING - if ( !needRecalc ) - return; -#endif - has_hfw = FALSE; - int i; - - for ( i = 0; i < rr; i++ ) - rowData[i].init( rStretch[i], rSpacing[i] ); - for ( i = 0; i < cc; i++ ) - colData[i].init( cStretch[i], cSpacing[i] ); - - TQPtrListIterator<TQGridBox> it( things ); - TQGridBox * box; - while ( (box = it.current()) != 0 ) { - ++it; - addData( box ); - has_hfw = has_hfw || box->item()->hasHeightForWidth(); - } - - if ( multi ) { - TQPtrListIterator<TQGridMultiBox> it( *multi ); - TQGridMultiBox * mbox; - while ( (mbox = it.current()) != 0 ) { - ++it; - TQGridBox *box = mbox->box(); - int r1 = box->row; - int c1 = box->col; - int r2 = mbox->torow; - int c2 = mbox->tocol; - if ( r2 < 0 ) - r2 = rr - 1; - if ( c2 < 0 ) - c2 = cc - 1; - - TQSize hint = box->sizeHint(); - TQSize min = box->minimumSize(); - if ( box->hasHeightForWidth() ) - has_hfw = TRUE; - - if ( r1 == r2 ) { - addData( box, TRUE, FALSE ); - } else { - distributeMultiBox( rowData, spacing, r1, r2, - min.height(), hint.height(), - rStretch, box->vStretch() ); - } - if ( c1 == c2 ) { - addData( box, FALSE, TRUE ); - } else { - distributeMultiBox( colData, spacing, c1, c2, - min.width(), hint.width(), - cStretch, box->hStretch() ); - } - } - } - for ( i = 0; i < rr; i++ ) - rowData[i].expansive = rowData[i].expansive || rowData[i].stretch > 0; - for ( i = 0; i < cc; i++ ) - colData[i].expansive = colData[i].expansive || colData[i].stretch > 0; - - needRecalc = FALSE; -} - -void TQGridLayoutData::addHfwData( TQGridBox *box, int width ) -{ - TQMemArray<TQLayoutStruct> &rData = *hfwData; - if ( box->hasHeightForWidth() ) { - int hint = box->heightForWidth( width ); - rData[box->row].sizeHint = TQMAX( hint, rData[box->row].sizeHint ); - rData[box->row].minimumSize = TQMAX( hint, rData[box->row].minimumSize ); - } else { - TQSize hint = box->sizeHint(); - TQSize minS = box->minimumSize(); - rData[box->row].sizeHint = TQMAX( hint.height(), - rData[box->row].sizeHint ); - rData[box->row].minimumSize = TQMAX( minS.height(), - rData[box->row].minimumSize ); - } -} - -/* - Similar to setupLayoutData(), but uses heightForWidth(colData) - instead of sizeHint(). Assumes that setupLayoutData() and - qGeomCalc(colData) has been called. -*/ -void TQGridLayoutData::setupHfwLayoutData( int spacing ) -{ - TQMemArray<TQLayoutStruct> &rData = *hfwData; - int i; - for ( i = 0; i < rr; i++ ) { - rData[i] = rowData[i]; - rData[i].minimumSize = rData[i].sizeHint = 0; - } - TQPtrListIterator<TQGridBox> it( things ); - TQGridBox * box; - while ( (box=it.current()) != 0 ) { - ++it; - addHfwData( box, colData[box->col].size ); - } - if ( multi ) { - TQPtrListIterator<TQGridMultiBox> it( *multi ); - TQGridMultiBox * mbox; - while ( (mbox=it.current()) != 0 ) { - ++it; - TQGridBox *box = mbox->box(); - int r1 = box->row; - int c1 = box->col; - int r2 = mbox->torow; - int c2 = mbox->tocol; - if ( r2 < 0 ) - r2 = rr-1; - if ( c2 < 0 ) - c2 = cc-1; - int w = colData[c2].pos + colData[c2].size - colData[c1].pos; - if ( r1 == r2 ) { - addHfwData( box, w ); - } else { - TQSize hint = box->sizeHint(); - TQSize min = box->minimumSize(); - if ( box->hasHeightForWidth() ) { - int hfwh = box->heightForWidth( w ); - if ( hfwh > hint.height() ) - hint.setHeight( hfwh ); - if ( hfwh > min.height() ) - min.setHeight( hfwh ); - } - distributeMultiBox( rData, spacing, r1, r2, - min.height(), hint.height(), - rStretch, box->vStretch() ); - } - } - } - for ( i = 0; i < rr; i++ ) - rData[i].expansive = rData[i].expansive || rData[i].stretch > 0; -} - -void TQGridLayoutData::distribute( TQRect r, int spacing ) -{ - bool visualHReversed = hReversed; - if ( TQApplication::reverseLayout() ) - visualHReversed = !visualHReversed; - - setupLayoutData( spacing ); - - qGeomCalc( colData, 0, cc, r.x(), r.width(), spacing ); - TQMemArray<TQLayoutStruct> *rDataPtr; - if ( has_hfw ) { - recalcHFW( r.width(), spacing ); - qGeomCalc( *hfwData, 0, rr, r.y(), r.height(), spacing ); - rDataPtr = hfwData; - } else { - qGeomCalc( rowData, 0, rr, r.y(), r.height(), spacing ); - rDataPtr = &rowData; - } - TQMemArray<TQLayoutStruct> &rData = *rDataPtr; - - TQPtrListIterator<TQGridBox> it( things ); - TQGridBox * box; - while ( (box=it.current()) != 0 ) { - ++it; - int x = colData[box->col].pos; - int y = rData[box->row].pos; - int w = colData[box->col].size; - int h = rData[box->row].size; - if ( visualHReversed ) - x = r.left() + r.right() - x - w + 1; - if ( vReversed ) - y = r.top() + r.bottom() - y - h + 1; - box->setGeometry( TQRect( x, y, w, h ) ); - } - if ( multi ) { - TQPtrListIterator<TQGridMultiBox> it( *multi ); - TQGridMultiBox * mbox; - while ( (mbox=it.current()) != 0 ) { - ++it; - TQGridBox *box = mbox->box(); - int r2 = mbox->torow; - int c2 = mbox->tocol; - if ( r2 < 0 ) - r2 = rr-1; - if ( c2 < 0 ) - c2 = cc-1; - - int x = colData[box->col].pos; - int y = rData[box->row].pos; - int x2p = colData[c2].pos + colData[c2].size; // x2+1 - int y2p = rData[r2].pos + rData[r2].size; // y2+1 - int w = x2p - x; - int h = y2p - y; - // this code is copied from above: - if ( visualHReversed ) - x = r.left() + r.right() - x - w + 1; - if ( vReversed ) - y = r.top() + r.bottom() - y - h + 1; - box->setGeometry( TQRect( x, y, w, h ) ); - } - } -} - -TQRect TQGridLayoutData::cellGeometry( int row, int col ) const -{ - if ( row < 0 || row >= rr || col < 0 || col >= cc ) - return TQRect(); - - const TQMemArray<TQLayoutStruct> *rDataPtr; - if ( has_hfw ) - rDataPtr = hfwData; - else - rDataPtr = &rowData; - return TQRect( colData[col].pos, (*rDataPtr)[row].pos, - colData[col].size, (*rDataPtr)[row].size ); -} - -class TQGridLayoutDataIterator : public TQGLayoutIterator -{ -public: - TQGridLayoutDataIterator( TQGridLayoutData *d ); - uint count() const { return data->count(); } - TQLayoutItem *current() { - if ( multi ) { - if ( !data->multi || idx >= (int)data->multi->count() ) - return 0; - return data->multi->at( idx )->box()->item(); - } else { - if ( idx >= (int)data->things.count() ) - return 0; - return data->things.at( idx )->item(); - } - } - void toFirst() { - multi = data->things.isEmpty(); - idx = 0; - } - TQLayoutItem *next() { - idx++; - if ( !multi && idx >= (int)data->things.count() ) { - multi = TRUE; - idx = 0; - } - return current(); - } - TQLayoutItem *takeCurrent() { - TQLayoutItem *item = 0; - if ( multi ) { - if ( !data->multi || idx >= (int)data->multi->count() ) - return 0; - TQGridMultiBox *b = data->multi->take( idx ); - item = b->takeItem(); - delete b; - } else { - if ( idx >= (int)data->things.count() ) - return 0; - TQGridBox *b = data->things.take( idx ); - item = b->takeItem(); - delete b; - } - return item; - } - -private: - TQGridLayoutData *data; - bool multi; - int idx; -}; - -inline TQGridLayoutDataIterator::TQGridLayoutDataIterator( TQGridLayoutData *d ) - : data( d ) -{ - toFirst(); -} - -/*! - \class TQGridLayout - - \brief The TQGridLayout class lays out widgets in a grid. - - \ingroup geomanagement - \ingroup appearance - \mainclass - - TQGridLayout takes the space made available to it (by its parent - layout or by the mainWidget()), divides it up into rows and - columns, and puts each widget it manages into the correct cell. - - Columns and rows behave identically; we will discuss columns, but - there are equivalent functions for rows. - - Each column has a minimum width and a stretch factor. The minimum - width is the greatest of that set using addColSpacing() and the - minimum width of each widget in that column. The stretch factor is - set using setColStretch() and determines how much of the available - space the column will get over and above its necessary minimum. - - Normally, each managed widget or layout is put into a cell of its - own using addWidget(), addLayout() or by the \link - TQLayout::setAutoAdd() auto-add facility\endlink. It is also - possible for a widget to occupy multiple cells using - addMultiCellWidget(). If you do this, TQGridLayout will guess how - to distribute the size over the columns/rows (based on the stretch - factors). - - To remove a widget from a layout, call remove(). Calling - TQWidget::hide() on a widget also effectively removes the widget - from the layout until TQWidget::show() is called. - - This illustration shows a fragment of a dialog with a five-column, - three-row grid (the grid is shown overlaid in magenta): - - \img gridlayout.png - - Columns 0, 2 and 4 in this dialog fragment are made up of a - TQLabel, a TQLineEdit, and a TQListBox. Columns 1 and 3 are - placeholders made with addColSpacing(). Row 0 consists of three - TQLabel objects, row 1 of three TQLineEdit objects and row 2 of - three TQListBox objects. We used placeholder columns (1 and 3) to - get the right amount of space between the columns. - - Note that the columns and rows are not equally wide or tall. If - you want two columns to have the same width, you must set their - minimum widths and stretch factors to be the same yourself. You do - this using addColSpacing() and setColStretch(). - - If the TQGridLayout is not the top-level layout (i.e. does not - manage all of the widget's area and children), you must add it to - its parent layout when you create it, but before you do anything - with it. The normal way to add a layout is by calling - parentLayout-\>addLayout(). - - Once you have added your layout you can start putting widgets and - other layouts into the cells of your grid layout using - addWidget(), addLayout() and addMultiCellWidget(). - - TQGridLayout also includes two margin widths: the border and the - spacing. The border is the width of the reserved space along each - of the TQGridLayout's four sides. The spacing is the width of the - automatically allocated spacing between neighboring boxes. - - Both the border and the spacing are parameters of the constructor - and default to 0. - - \sa TQGrid, \link layout.html Layout Overview \endlink -*/ - -/*! - \enum TQGridLayout::Corner - - This enum identifies which corner is the origin (0, 0) of the - layout. - - \value TopLeft the top-left corner - \value TopRight the top-right corner - \value BottomLeft the bottom-left corner - \value BottomRight the bottom-right corner -*/ - -/*! - Constructs a new TQGridLayout with \a nRows rows, \a nCols columns - and parent widget, \a parent. \a parent may not be 0. The grid - layout is called \a name. - - \a margin is the number of pixels between the edge of the widget - and its managed children. \a space is the default number of pixels - between cells. If \a space is -1, the value of \a margin is used. -*/ -TQGridLayout::TQGridLayout( TQWidget *parent, int nRows, int nCols, int margin, - int space, const char *name ) - : TQLayout( parent, margin, space, name ) -{ - init( nRows, nCols ); -} - -/*! - Constructs a new grid that is placed inside \a parentLayout with - \a nRows rows and \a nCols columns. If \a spacing is -1, this - TQGridLayout inherits its parent's spacing(); otherwise \a spacing - is used. The grid layout is called \a name. - - This grid is placed according to \a parentLayout's default - placement rules. -*/ -TQGridLayout::TQGridLayout( TQLayout *parentLayout, int nRows, int nCols, - int spacing, const char *name ) - : TQLayout( parentLayout, spacing, name ) -{ - init( nRows, nCols ); -} - -/*! - Constructs a new grid with \a nRows rows and \a nCols columns. If - \a spacing is -1, this TQGridLayout inherits its parent's - spacing(); otherwise \a spacing is used. The grid layout is called - \a name. - - You must insert this grid into another layout. You can insert - widgets and layouts into this layout at any time, but laying out - will not be performed before this is inserted into another layout. -*/ -TQGridLayout::TQGridLayout( int nRows, int nCols, - int spacing, const char *name ) - : TQLayout( spacing, name ) -{ - init( nRows, nCols ); -} - -/*! - Destroys the grid layout. Geometry management is terminated if - this is a top-level grid. - - The layout's widgets aren't destroyed. -*/ -TQGridLayout::~TQGridLayout() -{ - delete data; -} - -/*! - Returns the number of rows in this grid. -*/ -int TQGridLayout::numRows() const -{ - return data->numRows(); -} - -/*! - Returns the number of columns in this grid. -*/ -int TQGridLayout::numCols() const -{ - return data->numCols(); -} - -/*! - Returns the preferred size of this grid. -*/ -TQSize TQGridLayout::sizeHint() const -{ - return data->sizeHint( spacing() ) + TQSize( 2 * margin(), 2 * margin() ); -} - -/*! - Returns the minimum size needed by this grid. -*/ -TQSize TQGridLayout::minimumSize() const -{ - return data->minimumSize( spacing() ) + TQSize( 2 * margin(), 2 * margin() ); -} - -/*! - Returns the maximum size needed by this grid. -*/ -TQSize TQGridLayout::maximumSize() const -{ - TQSize s = data->maximumSize( spacing() ) + - TQSize( 2 * margin(), 2 * margin() ); - s = s.boundedTo( TQSize(TQLAYOUTSIZE_MAX, TQLAYOUTSIZE_MAX) ); - if ( alignment() & TQt::AlignHorizontal_Mask ) - s.setWidth( TQLAYOUTSIZE_MAX ); - if ( alignment() & TQt::AlignVertical_Mask ) - s.setHeight( TQLAYOUTSIZE_MAX ); - return s; -} - -/*! - Returns TRUE if this layout's preferred height depends on its - width; otherwise returns FALSE. -*/ -bool TQGridLayout::hasHeightForWidth() const -{ - return ((TQGridLayout*)this)->data->hasHeightForWidth( spacing() ); -} - -/*! - Returns the layout's preferred height when it is \a w pixels wide. -*/ -int TQGridLayout::heightForWidth( int w ) const -{ - TQGridLayout *that = (TQGridLayout*)this; - return that->data->heightForWidth( w, margin(), spacing() ); -} - -/*! \internal */ -int TQGridLayout::minimumHeightForWidth( int w ) const -{ - TQGridLayout *that = (TQGridLayout*)this; - return that->data->minimumHeightForWidth( w, margin(), spacing() ); -} - -/*! - Searches for widget \a w in this layout (not including child - layouts). If \a w is found, it sets \c \a row and \c \a col to - the row and column and returns TRUE; otherwise returns FALSE. - - Note: if a widget spans multiple rows/columns, the top-left cell - is returned. -*/ -bool TQGridLayout::findWidget( TQWidget* w, int *row, int *col ) -{ - return data->findWidget( w, row, col ); -} - -/*! - Resizes managed widgets within the rectangle \a r. -*/ -void TQGridLayout::setGeometry( const TQRect &r ) -{ - if ( data->isDirty() || r != geometry() ) { - TQLayout::setGeometry( r ); - TQRect cr = alignment() ? alignmentRect( r ) : r; - TQRect s( cr.x() + margin(), cr.y() + margin(), - cr.width() - 2 * margin(), cr.height() - 2 * margin() ); - data->distribute( s, spacing() ); - } -} - -/*! - Returns the geometry of the cell with row \a row and column \a col - in the grid. Returns an invalid rectangle if \a row or \a col is - outside the grid. - - \warning in the current version of TQt this function does not - return valid results until setGeometry() has been called, i.e. - after the mainWidget() is visible. -*/ -TQRect TQGridLayout::cellGeometry( int row, int col ) const -{ - return data->cellGeometry( row, col ); -} - -/*! - Expands this grid so that it will have \a nRows rows and \a nCols - columns. Will not shrink the grid. You should not need to call - this function because TQGridLayout expands automatically as new - items are inserted. -*/ -void TQGridLayout::expand( int nRows, int nCols ) -{ - data->expand( nRows, nCols ); -} - -/*! - Sets up the grid. -*/ -void TQGridLayout::init( int nRows, int nCols ) -{ - setSupportsMargin( TRUE ); - data = new TQGridLayoutData( nRows, nCols ); -} - -/*! - \overload - - Adds \a item to the next free position of this layout. -*/ -void TQGridLayout::addItem( TQLayoutItem *item ) -{ - int r, c; - data->getNextPos( r, c ); - add( item, r, c ); -} - -/*! - Adds \a item at position \a row, \a col. The layout takes - ownership of the \a item. -*/ -void TQGridLayout::addItem( TQLayoutItem *item, int row, int col ) -{ - add( item, row, col ); -} - -/*! - Adds \a item at position \a row, \a col. The layout takes - ownership of the \a item. -*/ -void TQGridLayout::add( TQLayoutItem *item, int row, int col ) -{ - TQGridBox *box = new TQGridBox( item ); - data->add( box, row, col ); -} - -/*! - Adds the \a item to the cell grid, spanning multiple rows/columns. - - The cell will span from \a fromRow, \a fromCol to \a toRow, \a - toCol. Alignment is specified by \a alignment, which is a bitwise - OR of \l TQt::AlignmentFlags values. The default alignment is 0, - which means that the widget fills the entire cell. -*/ -void TQGridLayout::addMultiCell( TQLayoutItem *item, int fromRow, int toRow, - int fromCol, int toCol, int alignment ) -{ - TQGridBox *b = new TQGridBox( item ); - b->setAlignment( alignment ); - data->add( b, fromRow, toRow, fromCol, toCol ); -} - -/* - Returns TRUE if the widget \a w can be added to the layout \a l; - otherwise returns FALSE. -*/ -static bool checkWidget( TQLayout *l, TQWidget *w ) -{ - if ( !w ) { -#if defined(QT_CHECK_STATE) - tqWarning( "TQLayout: Cannot add null widget to %s/%s", l->className(), - l->name() ); -#endif - return FALSE; - } - if ( w->parentWidget() != l->mainWidget() && l->mainWidget() ) { -#if defined(QT_CHECK_STATE) - if ( w->parentWidget() ) - tqWarning( "TQLayout: Adding %s/%s (child of %s/%s) to layout for " - "%s/%s", w->className(), w->name(), - w->parentWidget()->className(), w->parentWidget()->name(), - l->mainWidget()->className(), l->mainWidget()->name() ); - else - tqWarning( "TQLayout: Adding %s/%s (top-level widget) to layout for" - " %s/%s", w->className(), w->name(), - l->mainWidget()->className(), l->mainWidget()->name() ); -#endif - return FALSE; - } - return TRUE; -} - -/*! - Adds the widget \a w to the cell grid at \a row, \a col. The - top-left position is (0, 0) by default. - - Alignment is specified by \a alignment, which is a bitwise OR of - \l TQt::AlignmentFlags values. The default alignment is 0, which - means that the widget fills the entire cell. - - \list - \i You should not call this if you have enabled the - \link TQLayout::setAutoAdd() auto-add facility of the layout\endlink. - - \i From TQt 3.0, the \a alignment parameter is interpreted more - aggressively than in previous versions of TQt. A non-default - alignment now indicates that the widget should not grow to fill - the available space, but should be sized according to sizeHint(). - \endlist - - \sa addMultiCellWidget() -*/ -void TQGridLayout::addWidget( TQWidget *w, int row, int col, int alignment ) -{ - if ( !checkWidget( this, w ) ) - return; - if ( row < 0 || col < 0 ) { -#if defined(QT_CHECK_STATE) - tqWarning( "TQGridLayout: Cannot add %s/%s to %s/%s at row %d col %d", - w->className(), w->name(), className(), name(), row, col ); -#endif - return; - } - TQWidgetItem *b = new TQWidgetItem( w ); - b->setAlignment( alignment ); - add( b, row, col ); -} - -/*! - Adds the widget \a w to the cell grid, spanning multiple - rows/columns. The cell will span from \a fromRow, \a fromCol to \a - toRow, \a toCol. - - Alignment is specified by \a alignment, which is a bitwise OR of - \l TQt::AlignmentFlags values. The default alignment is 0, which - means that the widget fills the entire cell. - - A non-zero alignment indicates that the widget should not grow to - fill the available space but should be sized according to - sizeHint(). - - \sa addWidget() -*/ -void TQGridLayout::addMultiCellWidget( TQWidget *w, int fromRow, int toRow, - int fromCol, int toCol, int alignment ) -{ - TQGridBox *b = new TQGridBox( w ); - b->setAlignment( alignment ); - data->add( b, fromRow, toRow, fromCol, toCol ); -} - -/*! - Places the \a layout at position (\a row, \a col) in the grid. The - top-left position is (0, 0). - - \a layout becomes a child of the grid layout. - - When a layout is constructed with another layout as its parent, - you don't need to call addLayout(); the child layout is - automatically added to the parent layout as it is constructed. - - \sa addMultiCellLayout() -*/ -void TQGridLayout::addLayout( TQLayout *layout, int row, int col ) -{ - addChildLayout( layout ); - add( layout, row, col ); -} - -/*! - Adds the layout \a layout to the cell grid, spanning multiple - rows/columns. The cell will span from \a fromRow, \a fromCol to \a - toRow, \a toCol. - - Alignment is specified by \a alignment, which is a bitwise OR of - \l TQt::AlignmentFlags values. The default alignment is 0, which - means that the widget fills the entire cell. - - A non-zero alignment indicates that the layout should not grow to - fill the available space but should be sized according to - sizeHint(). - - \a layout becomes a child of the grid layout. - - \sa addLayout() -*/ -void TQGridLayout::addMultiCellLayout( TQLayout *layout, int fromRow, int toRow, - int fromCol, int toCol, int alignment ) -{ - addChildLayout( layout ); - TQGridBox *b = new TQGridBox( layout ); - b->setAlignment( alignment ); - data->add( b, fromRow, toRow, fromCol, toCol ); -} - -/*! - Sets the stretch factor of row \a row to \a stretch. The first row - is number 0. - - The stretch factor is relative to the other rows in this grid. - Rows with a higher stretch factor take more of the available - space. - - The default stretch factor is 0. If the stretch factor is 0 and no - other row in this table can grow at all, the row may still grow. - - \sa rowStretch(), setRowSpacing(), setColStretch() -*/ -void TQGridLayout::setRowStretch( int row, int stretch ) -{ - data->setRowStretch( row, stretch ); -} - -/*! - Returns the stretch factor for row \a row. - - \sa setRowStretch() -*/ -int TQGridLayout::rowStretch( int row ) const -{ - return data->rowStretch( row ); -} - -/*! - Returns the stretch factor for column \a col. - - \sa setColStretch() -*/ -int TQGridLayout::colStretch( int col ) const -{ - return data->colStretch( col ); -} - -/*! - Sets the stretch factor of column \a col to \a stretch. The first - column is number 0. - - The stretch factor is relative to the other columns in this grid. - Columns with a higher stretch factor take more of the available - space. - - The default stretch factor is 0. If the stretch factor is 0 and no - other column in this table can grow at all, the column may still - grow. - - \sa colStretch(), addColSpacing(), setRowStretch() -*/ -void TQGridLayout::setColStretch( int col, int stretch ) -{ - data->setColStretch( col, stretch ); -} - -/*! - \obsolete - - Sets the minimum height of row \a row to \a minsize pixels. - - Use setRowSpacing() instead. -*/ -void TQGridLayout::addRowSpacing( int row, int minsize ) -{ - TQLayoutItem *b = new TQSpacerItem( 0, minsize ); - add( b, row, 0 ); -} - -/*! - \obsolete - - Sets the minimum width of column \a col to \a minsize pixels. - - Use setColSpacing() instead. -*/ -void TQGridLayout::addColSpacing( int col, int minsize ) -{ - TQLayoutItem *b = new TQSpacerItem( minsize, 0 ); - add( b, 0, col ); -} - -/*! - Sets the minimum height of row \a row to \a minSize pixels. - - \sa rowSpacing(), setColSpacing() -*/ -void TQGridLayout::setRowSpacing( int row, int minSize ) -{ - data->setRowSpacing( row, minSize ); -} - -/*! - Returns the row spacing for row \a row. - - \sa setRowSpacing() -*/ -int TQGridLayout::rowSpacing( int row ) const -{ - return data->rowSpacing( row ); -} - -/*! - Sets the minimum width of column \a col to \a minSize pixels. - - \sa colSpacing(), setRowSpacing() -*/ -void TQGridLayout::setColSpacing( int col, int minSize ) -{ - data->setColSpacing( col, minSize ); -} - -/*! - Returns the column spacing for column \a col. - - \sa setColSpacing() -*/ -int TQGridLayout::colSpacing( int col ) const -{ - return data->colSpacing( col ); -} - -/*! - Returns whether this layout can make use of more space than - sizeHint(). A value of \c Vertical or \c Horizontal means that it wants - to grow in only one dimension, whereas \c BothDirections means that - it wants to grow in both dimensions. -*/ -TQSizePolicy::ExpandData TQGridLayout::expanding() const -{ - return data->expanding( spacing() ); -} - -/*! - Sets the grid's origin corner, i.e. position (0, 0), to \a c. -*/ -void TQGridLayout::setOrigin( Corner c ) -{ - data->setReversed( c == BottomLeft || c == BottomRight, - c == TopRight || c == BottomRight ); -} - -/*! - Returns the corner that's used for the grid's origin, i.e. for - position (0, 0). -*/ -TQGridLayout::Corner TQGridLayout::origin() const -{ - if ( data->horReversed() ) { - return data->verReversed() ? BottomRight : TopRight; - } else { - return data->verReversed() ? BottomLeft : TopLeft; - } -} - -/*! - Resets cached information. -*/ -void TQGridLayout::invalidate() -{ - TQLayout::invalidate(); - TQLayout::setGeometry( TQRect() ); // for binary compatibility (?) - data->setDirty(); -} - -/*! \reimp */ -TQLayoutIterator TQGridLayout::iterator() -{ - return TQLayoutIterator( new TQGridLayoutDataIterator(data) ); -} - -struct TQBoxLayoutItem -{ - TQBoxLayoutItem( TQLayoutItem *it, int stretch_ = 0 ) - : item( it ), stretch( stretch_ ), magic( FALSE ) { } - ~TQBoxLayoutItem() { delete item; } - - int hfw( int w ) { - if ( item->hasHeightForWidth() ) { - return item->heightForWidth( w ); - } else { - return item->sizeHint().height(); - } - } - int mhfw( int w ) { - if ( item->hasHeightForWidth() ) { - return item->heightForWidth( w ); - } else { - return item->minimumSize().height(); - } - } - int hStretch() { - if ( stretch == 0 && item->widget() ) { - return item->widget()->sizePolicy().horStretch(); - } else { - return stretch; - } - } - int vStretch() { - if ( stretch == 0 && item->widget() ) { - return item->widget()->sizePolicy().verStretch(); - } else { - return stretch; - } - } - - TQLayoutItem *item; - int stretch; - bool magic; -}; - -class TQBoxLayoutData -{ -public: - TQBoxLayoutData() : geomArray( 0 ), hfwWidth( -1 ), dirty( TRUE ) - { list.setAutoDelete( TRUE ); } - - ~TQBoxLayoutData() { delete geomArray; } - void setDirty() { - delete geomArray; - geomArray = 0; - hfwWidth = -1; - hfwHeight = -1; - dirty = TRUE; - } - - TQPtrList<TQBoxLayoutItem> list; - TQMemArray<TQLayoutStruct> *geomArray; - int hfwWidth; - int hfwHeight; - int hfwMinHeight; - TQSize sizeHint; - TQSize minSize; - TQSize maxSize; - TQSizePolicy::ExpandData expanding; - uint hasHfw : 1; - uint dirty : 1; -}; - -class TQBoxLayoutIterator : public TQGLayoutIterator -{ -public: - TQBoxLayoutIterator( TQBoxLayoutData *d ) : data( d ), idx( 0 ) {} - TQLayoutItem *current() { - if ( idx >= int(data->list.count()) ) - return 0; - return data->list.at(idx)->item; - } - TQLayoutItem *next() { - idx++; - return current(); - } - TQLayoutItem *takeCurrent() { - TQLayoutItem *item = 0; - - TQBoxLayoutItem *b = data->list.take( idx ); - if ( b ) { - item = b->item; - b->item = 0; - delete b; - } - data->setDirty(); - return item; - } - -private: - TQBoxLayoutData *data; - int idx; -}; - -/*! - \class TQBoxLayout - - \brief The TQBoxLayout class lines up child widgets horizontally or - vertically. - - \ingroup geomanagement - \ingroup appearance - - TQBoxLayout takes the space it gets (from its parent layout or from - the mainWidget()), divides it up into a row of boxes, and makes - each managed widget fill one box. - - \img qhbox-m.png Horizontal box with five child widgets - - If the TQBoxLayout's orientation is \c Horizontal the boxes are - placed in a row, with suitable sizes. Each widget (or other box) - will get at least its minimum size and at most its maximum size. - Any excess space is shared according to the stretch factors (more - about that below). - - \img qvbox-m.png Vertical box with five child widgets - - If the TQBoxLayout's orientation is \c Vertical, the boxes are - placed in a column, again with suitable sizes. - - The easiest way to create a TQBoxLayout is to use one of the - convenience classes, e.g. TQHBoxLayout (for \c Horizontal boxes) or - TQVBoxLayout (for \c Vertical boxes). You can also use the - TQBoxLayout constructor directly, specifying its direction as \c - LeftToRight, \c Down, \c RightToLeft or \c Up. - - If the TQBoxLayout is not the top-level layout (i.e. it is not - managing all of the widget's area and children), you must add it - to its parent layout before you can do anything with it. The - normal way to add a layout is by calling - parentLayout-\>addLayout(). - - Once you have done this, you can add boxes to the TQBoxLayout using - one of four functions: - - \list - \i addWidget() to add a widget to the TQBoxLayout and set the - widget's stretch factor. (The stretch factor is along the row of - boxes.) - - \i addSpacing() to create an empty box; this is one of the - functions you use to create nice and spacious dialogs. See below - for ways to set margins. - - \i addStretch() to create an empty, stretchable box. - - \i addLayout() to add a box containing another TQLayout to the row - and set that layout's stretch factor. - \endlist - - Use insertWidget(), insertSpacing(), insertStretch() or - insertLayout() to insert a box at a specified position in the - layout. - - TQBoxLayout also includes two margin widths: - - \list - \i setMargin() sets the width of the outer border. This is the width - of the reserved space along each of the TQBoxLayout's four sides. - \i setSpacing() sets the width between neighboring boxes. (You - can use addSpacing() to get more space at a particular spot.) - \endlist - - The margin defaults to 0. The spacing defaults to the same as the - margin width for a top-level layout, or to the same as the parent - layout. Both are parameters to the constructor. - - To remove a widget from a layout, call remove(). Calling - TQWidget::hide() on a widget also effectively removes the widget - from the layout until TQWidget::show() is called. - - You will almost always want to use TQVBoxLayout and TQHBoxLayout - rather than TQBoxLayout because of their convenient constructors. - - \sa TQGrid \link layout.html Layout Overview \endlink -*/ - -/*! - \enum TQBoxLayout::Direction - - This type is used to determine the direction of a box layout. - - \value LeftToRight Horizontal, from left to right - \value RightToLeft Horizontal, from right to left - \value TopToBottom Vertical, from top to bottom - \value Down The same as \c TopToBottom - \value BottomToTop Vertical, from bottom to top - \value Up The same as \c BottomToTop -*/ - -static inline bool horz( TQBoxLayout::Direction dir ) -{ - return dir == TQBoxLayout::RightToLeft || dir == TQBoxLayout::LeftToRight; -} - -/*! - Constructs a new TQBoxLayout with direction \a d and main widget \a - parent. \a parent may not be 0. - - The \a margin is the number of pixels between the edge of the - widget and its managed children. The \a spacing is the default - number of pixels between neighboring children. If \a spacing is -1 - the value of \a margin is used for \a spacing. - - \a name is the internal object name. - - \sa direction() -*/ -TQBoxLayout::TQBoxLayout( TQWidget *parent, Direction d, - int margin, int spacing, const char *name ) - : TQLayout( parent, margin, spacing, name ) -{ - data = new TQBoxLayoutData; - dir = d; - setSupportsMargin( TRUE ); -} - -/*! - Constructs a new TQBoxLayout called \a name, with direction \a d, - and inserts it into \a parentLayout. - - The \a spacing is the default number of pixels between neighboring - children. If \a spacing is -1, the layout will inherit its - parent's spacing(). -*/ -TQBoxLayout::TQBoxLayout( TQLayout *parentLayout, Direction d, int spacing, - const char *name ) - : TQLayout( parentLayout, spacing, name ) -{ - data = new TQBoxLayoutData; - dir = d; - setSupportsMargin( TRUE ); -} - -/*! - Constructs a new TQBoxLayout called \a name, with direction \a d. - - If \a spacing is -1, the layout will inherit its parent's - spacing(); otherwise \a spacing is used. - - You must insert this box into another layout. -*/ -TQBoxLayout::TQBoxLayout( Direction d, int spacing, const char *name ) - : TQLayout( spacing, name ) -{ - data = new TQBoxLayoutData; - dir = d; - setSupportsMargin( TRUE ); -} - -/*! - Destroys this box layout. - - The layout's widgets aren't destroyed. -*/ -TQBoxLayout::~TQBoxLayout() -{ - delete data; -} - -/*! - Returns the preferred size of this box layout. -*/ -TQSize TQBoxLayout::sizeHint() const -{ - if ( data->dirty ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->setupGeom(); - } - return data->sizeHint + TQSize( 2 * margin(), 2 * margin() ); -} - -/*! - Returns the minimum size needed by this box layout. -*/ -TQSize TQBoxLayout::minimumSize() const -{ - if ( data->dirty ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->setupGeom(); - } - return data->minSize + TQSize( 2 * margin(), 2 * margin() ); -} - -/*! - Returns the maximum size needed by this box layout. -*/ -TQSize TQBoxLayout::maximumSize() const -{ - if ( data->dirty ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->setupGeom(); - } - TQSize s = ( data->maxSize + TQSize(2 * margin(), 2 * margin()) ) - .boundedTo(TQSize(TQLAYOUTSIZE_MAX, TQLAYOUTSIZE_MAX)); - if ( alignment() & TQt::AlignHorizontal_Mask ) - s.setWidth( TQLAYOUTSIZE_MAX ); - if ( alignment() & TQt::AlignVertical_Mask ) - s.setHeight( TQLAYOUTSIZE_MAX ); - return s; -} - -/*! - Returns TRUE if this layout's preferred height depends on its width; - otherwise returns FALSE. -*/ -bool TQBoxLayout::hasHeightForWidth() const -{ - if ( data->dirty ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->setupGeom(); - } - return data->hasHfw; -} - -/*! - Returns the layout's preferred height when it is \a w pixels wide. -*/ -int TQBoxLayout::heightForWidth( int w ) const -{ - if ( !hasHeightForWidth() ) - return -1; - w -= 2 * margin(); - if ( w != data->hfwWidth ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->calcHfw( w ); - } - return data->hfwHeight + 2 * margin(); -} - -/*! \internal */ -int TQBoxLayout::minimumHeightForWidth( int w ) const -{ - (void) heightForWidth( w ); - return data->hasHfw ? (data->hfwMinHeight + 2 * margin() ) : -1; -} - -/*! - Resets cached information. -*/ -void TQBoxLayout::invalidate() -{ - TQLayout::invalidate(); - data->setDirty(); -} - -/*! - \reimp -*/ -TQLayoutIterator TQBoxLayout::iterator() -{ - return TQLayoutIterator( new TQBoxLayoutIterator(data) ); -} - -/*! - Returns whether this layout can make use of more space than - sizeHint(). A value of \c Vertical or \c Horizontal means that it wants - to grow in only one dimension, whereas \c BothDirections means that - it wants to grow in both dimensions. -*/ -TQSizePolicy::ExpandData TQBoxLayout::expanding() const -{ - if ( data->dirty ) { - TQBoxLayout *that = (TQBoxLayout*)this; - that->setupGeom(); - } - return data->expanding; -} - -/*! - Resizes managed widgets within the rectangle \a r. -*/ -void TQBoxLayout::setGeometry( const TQRect &r ) -{ - if ( !data->geomArray || r != geometry() ) { - TQLayout::setGeometry( r ); - if ( !data->geomArray ) - setupGeom(); - TQRect cr = alignment() ? alignmentRect( r ) : r; - TQRect s( cr.x() + margin(), cr.y() + margin(), - cr.width() - 2 * margin(), cr.height() - 2 * margin() ); - - TQMemArray<TQLayoutStruct> a = *data->geomArray; - int pos = horz( dir ) ? s.x() : s.y(); - int space = horz( dir ) ? s.width() : s.height(); - int n = a.count(); - if ( data->hasHfw && !horz(dir) ) { - for ( int i = 0; i < n; i++ ) { - TQBoxLayoutItem *box = data->list.at( i ); - if ( box->item->hasHeightForWidth() ) - a[i].sizeHint = a[i].minimumSize = - box->item->heightForWidth( s.width() ); - } - } - - Direction visualDir = dir; - if ( TQApplication::reverseLayout() ) { - if ( dir == LeftToRight ) - visualDir = RightToLeft; - else if ( dir == RightToLeft ) - visualDir = LeftToRight; - } - - qGeomCalc( a, 0, n, pos, space, spacing() ); - for ( int i = 0; i < n; i++ ) { - TQBoxLayoutItem *box = data->list.at( i ); - - switch ( visualDir ) { - case LeftToRight: - box->item->setGeometry( TQRect(a[i].pos, s.y(), - a[i].size, s.height()) ); - break; - case RightToLeft: - box->item->setGeometry( TQRect(s.left() + s.right() - - a[i].pos - a[i].size + 1, s.y(), - a[i].size, s.height()) ); - break; - case TopToBottom: - box->item->setGeometry( TQRect(s.x(), a[i].pos, - s.width(), a[i].size) ); - break; - case BottomToTop: - box->item->setGeometry( TQRect(s.x(), s.top() + s.bottom() - - a[i].pos - a[i].size + 1, - s.width(), a[i].size) ); - } - } - } -} - -/*! - Adds \a item to the end of this box layout. -*/ -void TQBoxLayout::addItem( TQLayoutItem *item ) -{ - TQBoxLayoutItem *it = new TQBoxLayoutItem( item ); - data->list.append( it ); - invalidate(); -} - -/*! - Inserts \a item into this box layout at position \a index. If \a - index is negative, the item is added at the end. - - \warning Does not call TQLayout::insertChildLayout() if \a item is - a TQLayout. - - \sa addItem(), findWidget() -*/ -void TQBoxLayout::insertItem( int index, TQLayoutItem *item ) -{ - if ( index < 0 ) // append - index = data->list.count(); - - TQBoxLayoutItem *it = new TQBoxLayoutItem( item ); - data->list.insert( index, it ); - invalidate(); -} - -/*! - Inserts a non-stretchable space at position \a index, with size \a - size. If \a index is negative the space is added at the end. - - The box layout has default margin and spacing. This function adds - additional space. - - \sa insertStretch() -*/ -void TQBoxLayout::insertSpacing( int index, int size ) -{ - if ( index < 0 ) // append - index = data->list.count(); - - // hack in TQGridLayoutData: spacers do not get insideSpacing - TQLayoutItem *b; - if ( horz( dir ) ) - b = new TQSpacerItem( size, 0, TQSizePolicy::Fixed, - TQSizePolicy::Minimum ); - else - b = new TQSpacerItem( 0, size, TQSizePolicy::Minimum, - TQSizePolicy::Fixed ); - - TQBoxLayoutItem *it = new TQBoxLayoutItem( b ); - it->magic = TRUE; - data->list.insert( index, it ); - invalidate(); -} - -/*! - Inserts a stretchable space at position \a index, with zero - minimum size and stretch factor \a stretch. If \a index is - negative the space is added at the end. - - \sa insertSpacing() -*/ -void TQBoxLayout::insertStretch( int index, int stretch ) -{ - if ( index < 0 ) // append - index = data->list.count(); - - // hack in TQGridLayoutData: spacers do not get insideSpacing - TQLayoutItem *b; - if ( horz( dir ) ) - b = new TQSpacerItem( 0, 0, TQSizePolicy::Expanding, - TQSizePolicy::Minimum ); - else - b = new TQSpacerItem( 0, 0, TQSizePolicy::Minimum, - TQSizePolicy::Expanding ); - - TQBoxLayoutItem *it = new TQBoxLayoutItem( b, stretch ); - it->magic = TRUE; - data->list.insert( index, it ); - invalidate(); -} - -/*! - Inserts \a layout at position \a index, with stretch factor \a - stretch. If \a index is negative, the layout is added at the end. - - \a layout becomes a child of the box layout. - - \sa setAutoAdd(), insertWidget(), insertSpacing() -*/ -void TQBoxLayout::insertLayout( int index, TQLayout *layout, int stretch ) -{ - if ( index < 0 ) // append - index = data->list.count(); - - addChildLayout( layout ); - TQBoxLayoutItem *it = new TQBoxLayoutItem( layout, stretch ); - data->list.insert( index, it ); - invalidate(); -} - -/*! - Inserts \a widget at position \a index, with stretch factor \a - stretch and alignment \a alignment. If \a index is negative, the - widget is added at the end. - - The stretch factor applies only in the \link direction() direction - \endlink of the TQBoxLayout, and is relative to the other boxes and - widgets in this TQBoxLayout. Widgets and boxes with higher stretch - factors grow more. - - If the stretch factor is 0 and nothing else in the TQBoxLayout has - a stretch factor greater than zero, the space is distributed - according to the TQWidget:sizePolicy() of each widget that's - involved. - - Alignment is specified by \a alignment, which is a bitwise OR of - \l TQt::AlignmentFlags values. The default alignment is 0, which - means that the widget fills the entire cell. - - From TQt 3.0, the \a alignment parameter is interpreted more - aggressively than in previous versions of TQt. A non-default - alignment now indicates that the widget should not grow to fill - the available space, but should be sized according to sizeHint(). - - \sa setAutoAdd(), insertLayout(), insertSpacing() -*/ -void TQBoxLayout::insertWidget( int index, TQWidget *widget, int stretch, - int alignment ) -{ - if ( !checkWidget(this, widget) ) - return; - - if ( index < 0 ) // append - index = data->list.count(); - - TQWidgetItem *b = new TQWidgetItem( widget ); - b->setAlignment( alignment ); - TQBoxLayoutItem *it = new TQBoxLayoutItem( b, stretch ); - data->list.insert( index, it ); - invalidate(); -} - -/*! - Adds a non-stretchable space with size \a size to the end of this - box layout. TQBoxLayout provides default margin and spacing. This - function adds additional space. - - \sa insertSpacing(), addStretch() -*/ -void TQBoxLayout::addSpacing( int size ) -{ - insertSpacing( -1, size ); -} - -/*! - Adds a stretchable space with zero minimum size and stretch factor - \a stretch to the end of this box layout. - - \sa addSpacing() -*/ -void TQBoxLayout::addStretch( int stretch ) -{ - insertStretch( -1, stretch ); -} - -/*! - Adds \a widget to the end of this box layout, with a stretch - factor of \a stretch and alignment \a alignment. - - The stretch factor applies only in the \link direction() direction - \endlink of the TQBoxLayout, and is relative to the other boxes and - widgets in this TQBoxLayout. Widgets and boxes with higher stretch - factors grow more. - - If the stretch factor is 0 and nothing else in the TQBoxLayout has - a stretch factor greater than zero, the space is distributed - according to the TQWidget:sizePolicy() of each widget that's - involved. - - Alignment is specified by \a alignment which is a bitwise OR of \l - TQt::AlignmentFlags values. The default alignment is 0, which means - that the widget fills the entire cell. - - From TQt 3.0, the \a alignment parameter is interpreted more - aggressively than in previous versions of TQt. A non-default - alignment now indicates that the widget should not grow to fill - the available space, but should be sized according to sizeHint(). - - \sa insertWidget(), setAutoAdd(), addLayout(), addSpacing() -*/ -void TQBoxLayout::addWidget( TQWidget *widget, int stretch, - int alignment ) -{ - insertWidget( -1, widget, stretch, alignment ); -} - -/*! - Adds \a layout to the end of the box, with serial stretch factor - \a stretch. - - When a layout is constructed with another layout as its parent, - you don't need to call addLayout(); the child layout is - automatically added to the parent layout as it is constructed. - - \sa insertLayout(), setAutoAdd(), addWidget(), addSpacing() -*/ -void TQBoxLayout::addLayout( TQLayout *layout, int stretch ) -{ - insertLayout( -1, layout, stretch ); -} - -/*! - Limits the perpendicular dimension of the box (e.g. height if the - box is LeftToRight) to a minimum of \a size. Other constraints may - increase the limit. -*/ -void TQBoxLayout::addStrut( int size ) -{ - TQLayoutItem *b; - if ( horz( dir ) ) - b = new TQSpacerItem( 0, size, TQSizePolicy::Fixed, - TQSizePolicy::Minimum ); - else - b = new TQSpacerItem( size, 0, TQSizePolicy::Minimum, - TQSizePolicy::Fixed ); - - TQBoxLayoutItem *it = new TQBoxLayoutItem( b ); - it->magic = TRUE; - data->list.append( it ); - invalidate(); -} - -/*! - Searches for widget \a w in this layout (not including child - layouts). - - Returns the index of \a w, or -1 if \a w is not found. -*/ -int TQBoxLayout::findWidget( TQWidget* w ) -{ - const int n = data->list.count(); - for ( int i = 0; i < n; i++ ) { - if ( data->list.at(i)->item->widget() == w ) - return i; - } - return -1; -} - -/*! - Sets the stretch factor for widget \a w to \a stretch and returns - TRUE if \a w is found in this layout (not including child - layouts); otherwise returns FALSE. -*/ -bool TQBoxLayout::setStretchFactor( TQWidget *w, int stretch ) -{ - TQPtrListIterator<TQBoxLayoutItem> it( data->list ); - TQBoxLayoutItem *box; - while ( (box=it.current()) != 0 ) { - ++it; - if ( box->item->widget() == w ) { - box->stretch = stretch; - invalidate(); - return TRUE; - } - } - return FALSE; -} - -/*! - \overload - - Sets the stretch factor for the layout \a l to \a stretch and - returns TRUE if \a l is found in this layout (not including child - layouts); otherwise returns FALSE. -*/ -bool TQBoxLayout::setStretchFactor( TQLayout *l, int stretch ) -{ - TQPtrListIterator<TQBoxLayoutItem> it( data->list ); - TQBoxLayoutItem *box; - while ( (box=it.current()) != 0 ) { - ++it; - if ( box->item->layout() == l ) { - box->stretch = stretch; - invalidate(); - return TRUE; - } - } - return FALSE; -} - -/*! - Sets the direction of this layout to \a direction. -*/ -void TQBoxLayout::setDirection( Direction direction ) -{ - if ( dir == direction ) - return; - if ( horz(dir) != horz(direction) ) { - //swap around the spacers (the "magic" bits) - //#### a bit yucky, knows too much. - //#### probably best to add access functions to spacerItem - //#### or even a TQSpacerItem::flip() - TQPtrListIterator<TQBoxLayoutItem> it( data->list ); - TQBoxLayoutItem *box; - while ( (box=it.current()) != 0 ) { - ++it; - if ( box->magic ) { - TQSpacerItem *sp = box->item->spacerItem(); - if ( sp ) { - if ( sp->expanding() == TQSizePolicy::NoDirection ) { - //spacing or strut - TQSize s = sp->sizeHint(); - sp->changeSize( s.height(), s.width(), - horz(direction) ? TQSizePolicy::Fixed:TQSizePolicy::Minimum, - horz(direction) ? TQSizePolicy::Minimum:TQSizePolicy::Fixed ); - - } else { - //stretch - if ( horz(direction) ) - sp->changeSize( 0, 0, TQSizePolicy::Expanding, - TQSizePolicy::Minimum ); - else - sp->changeSize( 0, 0, TQSizePolicy::Minimum, - TQSizePolicy::Expanding ); - } - } - } - } - } - dir = direction; - invalidate(); - if ( mainWidget() ) { - TQEvent *lh = new TQEvent( TQEvent::LayoutHint ); - TQApplication::postEvent( mainWidget(), lh ); - } - -} - -/* - Initializes the data structure needed by qGeomCalc and - recalculates max/min and size hint. -*/ -void TQBoxLayout::setupGeom() -{ - if ( !data->dirty ) - return; - - int maxw = horz( dir ) ? 0 : TQLAYOUTSIZE_MAX; - int maxh = horz( dir ) ? TQLAYOUTSIZE_MAX : 0; - int minw = 0; - int minh = 0; - int hintw = 0; - int hinth = 0; - - bool horexp = FALSE; - bool verexp = FALSE; - - data->hasHfw = FALSE; - - delete data->geomArray; - int n = data->list.count(); - data->geomArray = new TQMemArray<TQLayoutStruct>( n ); - TQMemArray<TQLayoutStruct>& a = *data->geomArray; - - bool first = TRUE; - for ( int i = 0; i < n; i++ ) { - TQBoxLayoutItem *box = data->list.at( i ); - TQSize max = box->item->maximumSize(); - TQSize min = box->item->minimumSize(); - TQSize hint = box->item->sizeHint(); - TQSizePolicy::ExpandData exp = box->item->expanding(); - bool empty = box->item->isEmpty(); - // space before non-empties, except the first: - int space = ( empty || first ) ? 0 : spacing(); - bool ignore = empty && box->item->widget(); // ignore hidden widgets - - if ( horz(dir) ) { - bool expand = exp & TQSizePolicy::Horizontally || box->stretch > 0; - horexp = horexp || expand; - maxw += max.width() + space; - minw += min.width() + space; - hintw += hint.width() + space; - if ( !ignore ) - qMaxExpCalc( maxh, verexp, - max.height(), exp & TQSizePolicy::Vertically ); - minh = TQMAX( minh, min.height() ); - hinth = TQMAX( hinth, hint.height() ); - - a[i].sizeHint = hint.width(); - a[i].maximumSize = max.width(); - a[i].minimumSize = min.width(); - a[i].expansive = expand; - a[i].stretch = box->stretch ? box->stretch : box->hStretch(); - } else { - bool expand = ( exp & TQSizePolicy::Vertically || box->stretch > 0 ); - verexp = verexp || expand; - maxh += max.height() + space; - minh += min.height() + space; - hinth += hint.height() + space; - if ( !ignore ) - qMaxExpCalc( maxw, horexp, - max.width(), exp & TQSizePolicy::Horizontally ); - minw = TQMAX( minw, min.width() ); - hintw = TQMAX( hintw, hint.width() ); - - a[i].sizeHint = hint.height(); - a[i].maximumSize = max.height(); - a[i].minimumSize = min.height(); - a[i].expansive = expand; - a[i].stretch = box->stretch ? box->stretch : box->vStretch(); - } - - a[i].empty = empty; - data->hasHfw = data->hasHfw || box->item->hasHeightForWidth(); - first = first && empty; - } - - data->minSize = TQSize( minw, minh ); - data->maxSize = TQSize( maxw, maxh ).expandedTo( data->minSize ); - - data->expanding = (TQSizePolicy::ExpandData) - ( (horexp ? TQSizePolicy::Horizontally : 0) - | (verexp ? TQSizePolicy::Vertically : 0) ); - - data->sizeHint = TQSize( hintw, hinth ) - .expandedTo( data->minSize ) - .boundedTo( data->maxSize ); - - data->dirty = FALSE; -} - -/* - Calculates and stores the preferred height given the width \a w. -*/ -void TQBoxLayout::calcHfw( int w ) -{ - int h = 0; - int mh = 0; - - if ( horz(dir) ) { - TQMemArray<TQLayoutStruct> &a = *data->geomArray; - int n = a.count(); - qGeomCalc( a, 0, n, 0, w, spacing() ); - for ( int i = 0; i < n; i++ ) { - TQBoxLayoutItem *box = data->list.at(i); - h = TQMAX( h, box->hfw(a[i].size) ); - mh = TQMAX( mh, box->mhfw(a[i].size) ); - } - } else { - TQPtrListIterator<TQBoxLayoutItem> it( data->list ); - TQBoxLayoutItem *box; - bool first = TRUE; - while ( (box = it.current()) != 0 ) { - ++it; - bool empty = box->item->isEmpty(); - h += box->hfw( w ); - mh += box->mhfw( w ); - if ( !first && !empty ) { - h += spacing(); - mh += spacing(); - } - first = first && empty; - } - } - data->hfwWidth = w; - data->hfwHeight = h; - data->hfwMinHeight = mh; -} - -/*! - \fn TQBoxLayout::Direction TQBoxLayout::direction() const - - Returns the direction of the box. addWidget() and addSpacing() - work in this direction; the stretch stretches in this direction. - - \sa TQBoxLayout::Direction addWidget() addSpacing() -*/ - -/*! - \class TQHBoxLayout - \brief The TQHBoxLayout class lines up widgets horizontally. - - \ingroup geomanagement - \ingroup appearance - \mainclass - - This class is used to construct horizontal box layout objects. See - \l TQBoxLayout for more details. - - The simplest use of the class is like this: - \code - TQBoxLayout * l = new TQHBoxLayout( widget ); - l->setAutoAdd( TRUE ); - new TQSomeWidget( widget ); - new TQSomeOtherWidget( widget ); - new TQAnotherWidget( widget ); - \endcode - - or like this: - \code - TQBoxLayout * l = new TQHBoxLayout( widget ); - l->addWidget( existingChildOfWidget ); - l->addWidget( anotherChildOfWidget ); - \endcode - - \img qhboxlayout.png TQHBox - - \sa TQVBoxLayout TQGridLayout - \link layout.html the Layout overview \endlink -*/ - -/*! - Constructs a new top-level horizontal box called \a name, with - parent \a parent. - - The \a margin is the number of pixels between the edge of the - widget and its managed children. The \a spacing is the default - number of pixels between neighboring children. If \a spacing is -1 - the value of \a margin is used for \a spacing. -*/ -TQHBoxLayout::TQHBoxLayout( TQWidget *parent, int margin, - int spacing, const char *name ) - : TQBoxLayout( parent, LeftToRight, margin, spacing, name ) -{ -} - -/*! - Constructs a new horizontal box called name \a name and adds it to - \a parentLayout. - - The \a spacing is the default number of pixels between neighboring - children. If \a spacing is -1, this TQHBoxLayout will inherit its - parent's spacing(). -*/ -TQHBoxLayout::TQHBoxLayout( TQLayout *parentLayout, int spacing, - const char *name ) - : TQBoxLayout( parentLayout, LeftToRight, spacing, name ) -{ -} - -/*! - Constructs a new horizontal box called name \a name. You must add - it to another layout. - - The \a spacing is the default number of pixels between neighboring - children. If \a spacing is -1, this TQHBoxLayout will inherit its - parent's spacing(). -*/ -TQHBoxLayout::TQHBoxLayout( int spacing, const char *name ) - : TQBoxLayout( LeftToRight, spacing, name ) -{ -} - -/*! - Destroys this box layout. - - The layout's widgets aren't destroyed. -*/ -TQHBoxLayout::~TQHBoxLayout() -{ -} - -/*! - \class TQVBoxLayout - - \brief The TQVBoxLayout class lines up widgets vertically. - - \ingroup geomanagement - \ingroup appearance - \mainclass - - This class is used to construct vertical box layout objects. See - TQBoxLayout for more details. - - The simplest use of the class is like this: - \code - TQBoxLayout * l = new TQVBoxLayout( widget ); - l->addWidget( aWidget ); - l->addWidget( anotherWidget ); - \endcode - - \img qvboxlayout.png TQVBox - - \sa TQHBoxLayout TQGridLayout \link layout.html the Layout overview \endlink -*/ - -/*! - Constructs a new top-level vertical box called \a name, with - parent \a parent. - - The \a margin is the number of pixels between the edge of the - widget and its managed children. The \a spacing is the default - number of pixels between neighboring children. If \a spacing is -1 - the value of \a margin is used for \a spacing. -*/ -TQVBoxLayout::TQVBoxLayout( TQWidget *parent, int margin, int spacing, - const char *name ) - : TQBoxLayout( parent, TopToBottom, margin, spacing, name ) -{ - -} - -/*! - Constructs a new vertical box called name \a name and adds it to - \a parentLayout. - - The \a spacing is the default number of pixels between neighboring - children. If \a spacing is -1, this TQVBoxLayout will inherit its - parent's spacing(). -*/ -TQVBoxLayout::TQVBoxLayout( TQLayout *parentLayout, int spacing, - const char *name ) - : TQBoxLayout( parentLayout, TopToBottom, spacing, name ) -{ -} - -/*! - Constructs a new vertical box called name \a name. You must add - it to another layout. - - The \a spacing is the default number of pixels between neighboring - children. If \a spacing is -1, this TQVBoxLayout will inherit its - parent's spacing(). -*/ -TQVBoxLayout::TQVBoxLayout( int spacing, const char *name ) - : TQBoxLayout( TopToBottom, spacing, name ) -{ -} - -/*! - Destroys this box layout. - - The layout's widgets aren't destroyed. -*/ -TQVBoxLayout::~TQVBoxLayout() -{ -} - -TQBoxLayout *TQBoxLayout::createTmpCopy() -{ - TQBoxLayout *bl = new TQBoxLayout( direction() ); - delete bl->data; - bl->data = data; - return bl; -} - -#endif // TQT_NO_LAYOUT |
