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tdelibs/kmdi/kmdichildarea.cpp

790 lines
21 KiB

//----------------------------------------------------------------------------
// filename : kmdichildarea.cpp
//----------------------------------------------------------------------------
// Project : KDE MDI extension
//
// begin : 07/1999 by Szymon Stefanek as part of kvirc
// (an IRC application)
// changes : 09/1999 by Falk Brettschneider to create an
// - 06/2000 stand-alone Qt extension set of
// classes and a Qt-based library
// 2000-2003 maintained by the KDevelop project
//
// copyright : (C) 1999-2003 by Szymon Stefanek (stefanek@tin.it)
// and
// Falk Brettschneider
// email : falkbr@kdevelop.org (Falk Brettschneider)
//----------------------------------------------------------------------------
//
//----------------------------------------------------------------------------
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License as
// published by the Free Software Foundation; either version 2 of the
// License, or (at your option) any later version.
//
//----------------------------------------------------------------------------
#include "kmdichildarea.h"
#include "kmdichildarea.moc"
#include "kmdidefines.h"
#include <kconfig.h>
#include <kdebug.h>
#include <kglobal.h>
#include <kglobalsettings.h>
#include <math.h>
#include <tqpopupmenu.h>
///////////////////////////////////////////////////////////////////////////////
// KMdiChildArea
///////////////////////////////////////////////////////////////////////////////
//============ KMdiChildArea ============//
KMdiChildArea::KMdiChildArea( TQWidget *parent )
: TQFrame( parent, "kmdi_childarea" )
{
setFrameStyle( TQFrame::Panel | TQFrame::Sunken );
m_captionFont = TQFont();
TQFontMetrics fm( m_captionFont );
m_captionFontLineSpacing = fm.lineSpacing();
m_captionActiveBackColor = KGlobalSettings::activeTitleColor();
m_captionActiveForeColor = KGlobalSettings::activeTextColor();
m_captionInactiveBackColor = KGlobalSettings::inactiveTitleColor();
m_captionInactiveForeColor = KGlobalSettings::inactiveTextColor();
m_pZ = new TQPtrList<KMdiChildFrm>;
m_pZ->setAutoDelete( true );
setFocusPolicy( ClickFocus );
m_defaultChildFrmSize = TQSize( 400, 300 );
}
KMdiChildArea::~KMdiChildArea()
{
delete m_pZ; //This will destroy all the widgets inside.
}
void KMdiChildArea::manageChild( KMdiChildFrm* child, bool show, bool cascade )
{
kdDebug( 760 ) << k_funcinfo << "Adding child " << child << " to be managed" << endl;
KMdiChildFrm* top = topChild();
//remove old references. There can be more than one so we remove them all
if ( m_pZ->tqfindRef( child ) != -1 )
{
//TQPtrList::tqfind* moves current() to the found item
m_pZ->take();
while ( m_pZ->tqfindNextRef( child ) != -1 )
m_pZ->take();
}
if ( show )
m_pZ->append( child ); //visible -> first in the Z order
else
m_pZ->insert( 0, child ); //hidden -> last in the Z order
if ( cascade )
child->move( getCascadePoint( m_pZ->count() - 1 ) );
if ( show )
{
if ( top && top->state() == KMdiChildFrm::Maximized )
{
kdDebug( 760 ) << k_funcinfo << "Maximizing the new child" << endl;
emit sysButtonConnectionsMustChange( top, child );
top->setState( KMdiChildFrm::Normal, false /*animate*/ );
child->setState( KMdiChildFrm::Maximized, false /*animate*/ );
}
child->show();
focusTopChild();
}
}
void KMdiChildArea::destroyChild( KMdiChildFrm *child, bool focusTop )
{
kdDebug( 760 ) << k_funcinfo << "Removing child " << child->caption() << endl;
bool wasMaximized = ( child->state() == KMdiChildFrm::Maximized );
// destroy the old one
TQObject::disconnect( child );
child->blockSignals( true );
m_pZ->setAutoDelete( false );
m_pZ->removeRef( child );
// focus the next new childframe
KMdiChildFrm* newTopChild = topChild();
if ( wasMaximized )
{
if ( newTopChild )
{
newTopChild->setState( KMdiChildFrm::Maximized, false );
emit sysButtonConnectionsMustChange( child, newTopChild );
}
else
emit noMaximizedChildFrmLeft( child ); // last childframe removed
}
delete child;
m_pZ->setAutoDelete( true );
if ( focusTop )
focusTopChild();
}
void KMdiChildArea::destroyChildButNotItsView( KMdiChildFrm* child, bool focusTop )
{
kdDebug( 760 ) << k_funcinfo << "Removing child " << child->caption() << endl;
bool wasMaximized = ( child->state() == KMdiChildFrm::Maximized );
// destroy the old one
TQObject::disconnect( child );
child->unsetClient();
m_pZ->setAutoDelete( false );
m_pZ->removeRef( child );
// focus the next new childframe
KMdiChildFrm* newTopChild = topChild();
if ( wasMaximized )
{
if ( newTopChild )
{
newTopChild->setState( KMdiChildFrm::Maximized, false );
emit sysButtonConnectionsMustChange( child, newTopChild );
}
else
emit noMaximizedChildFrmLeft( child ); // last childframe removed
}
delete child;
m_pZ->setAutoDelete( true );
if ( focusTop )
focusTopChild();
}
void KMdiChildArea::setTopChild( KMdiChildFrm* child, bool /* bSetFocus */ )
{
if ( !child )
return;
if ( topChild() != child )
{
kdDebug( 760 ) << k_funcinfo << "Setting " << child->caption() << " as the new top child" << endl;
m_pZ->setAutoDelete( false );
if ( child )
m_pZ->removeRef( child );
m_pZ->setAutoDelete( true );
//disable the labels of all the other children
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
( *it )->m_pCaption->setActive( false );
KMdiChildFrm* maximizedChild = topChild();
bool topChildMaximized = false;
if ( maximizedChild && maximizedChild->state() == KMdiChildFrm::Maximized )
topChildMaximized = true;
m_pZ->append( child );
int nChildAreaMinW = 0, nChildAreaMinH = 0;
int nChildAreaMaxW = QWIDGETSIZE_MAX, nChildAreaMaxH = QWIDGETSIZE_MAX;
if ( topChildMaximized && child->m_pClient )
{
//the former top child is maximized, so maximize the new one
nChildAreaMinW = child->m_pClient->minimumWidth();
nChildAreaMinH = child->m_pClient->minimumHeight();
/// @todo: setting the maximum size doesn't work properly - fix this later
// nChildAreaMaxW = child->m_pClient->maximumWidth();
// nChildAreaMaxH = child->m_pClient->maximumHeight();
}
//set the min and max sizes of this child area to the new top child
setMinimumSize( nChildAreaMinW, nChildAreaMinH );
setMaximumSize( nChildAreaMaxW, nChildAreaMaxH );
if ( topChildMaximized )
{ //maximize the new view and restore the old
child->setState( KMdiChildFrm::Maximized, false /*animate*/);
maximizedChild->setState( KMdiChildFrm::Normal, false /*animate*/ );
emit sysButtonConnectionsMustChange( maximizedChild, child );
}
else
child->raise();
TQFocusEvent::setReason( TQFocusEvent::Other );
child->m_pClient->setFocus();
}
}
void KMdiChildArea::resizeEvent( TQResizeEvent* e )
{
//If we have a maximized children at the top , adjust its size
KMdiChildFrm* child = topChild();
if ( child && child->state() == KMdiChildFrm::Maximized )
{
int clientw = 0, clienth = 0;
if ( child->m_pClient != 0L )
{
clientw = child->m_pClient->width();
clienth = child->m_pClient->height();
}
child->resize( width() + KMDI_CHILDFRM_DOUBLE_BORDER,
height() + child->m_pCaption->heightHint() + KMDI_CHILDFRM_SEPARATOR + KMDI_CHILDFRM_DOUBLE_BORDER );
}
tqlayoutMinimizedChildren();
TQWidget::resizeEvent( e );
}
//=============== mousePressEvent =============//
void KMdiChildArea::mousePressEvent( TQMouseEvent *e )
{
//Popup the window menu
if ( e->button() & RightButton )
emit popupWindowMenu( mapToGlobal( e->pos() ) );
}
//=============== getCascadePoint ============//
TQPoint KMdiChildArea::getCascadePoint( int indexOfWindow )
{
if ( indexOfWindow < 0 )
{
indexOfWindow = m_pZ->count(); //use the window count
kdDebug( 760 ) << k_funcinfo << "indexOfWindow was less than zero, using "
<< indexOfWindow << " as new index" << endl;
}
TQPoint pnt( 0, 0 );
if ( indexOfWindow == 0 )
{
kdDebug( 760 ) << k_funcinfo << "No windows. Returning TQPoint( 0, 0 ) as the cascade point" << endl;
return pnt;
}
bool topLevelMode = false;
if ( height() == 1 ) // hacky?!
topLevelMode = true;
kdDebug( 760 ) << k_funcinfo << "Getting the cascade point for window index " << indexOfWindow << endl;
kdDebug( 760 ) << k_funcinfo << "Do we think we're in top level mode? " << topLevelMode << endl;
KMdiChildFrm* child = m_pZ->first();
//default values
int step = 20;
int h = ( topLevelMode ? TQApplication::desktop()->height() : height() );
int w = ( topLevelMode ? TQApplication::desktop()->width() : width() );
int availableHeight = h - m_defaultChildFrmSize.height();
int availableWidth = w - m_defaultChildFrmSize.width();
int ax = 0;
int ay = 0;
if ( child )
{
kdDebug( 760 ) << k_funcinfo << "child frame exists. resetting height and width values" << endl;
step = child->m_pCaption->heightHint() + KMDI_CHILDFRM_BORDER;
availableHeight = h - child->minimumHeight();
availableWidth = w - child->minimumWidth();
}
for ( int i = 0; i < indexOfWindow; i++ )
{
ax += step;
ay += step;
//do some bounds checking, because to not do it would be bad.
if ( ax > availableWidth )
ax = 0;
if ( ay > availableHeight )
ay = 0;
}
pnt.setX( ax );
pnt.setY( ay );
return pnt;
}
void KMdiChildArea::childMinimized( KMdiChildFrm *minimizedChild, bool wasMaximized )
{
//can't tqfind the child in our list, so we don't care.
if ( m_pZ->tqfindRef( minimizedChild ) == -1 )
{
kdDebug( 760 ) << k_funcinfo << "child was minimized but wasn't in our list!" << endl;
return;
}
kdDebug( 760 ) << k_funcinfo << endl;
if ( m_pZ->count() > 1 )
{
//move the minimized child to the bottom
m_pZ->setAutoDelete( false );
m_pZ->removeRef( minimizedChild );
m_pZ->setAutoDelete( true );
m_pZ->insert( 0, minimizedChild );
if ( wasMaximized )
{ // Need to maximize the new top child
kdDebug( 760 ) << k_funcinfo << "child just minimized from maximized state. maximize new top child" << endl;
minimizedChild = topChild();
if ( !minimizedChild )
return; //??
if ( minimizedChild->state() == KMdiChildFrm::Maximized )
return; //it's already maximized
minimizedChild->setState( KMdiChildFrm::Maximized, false ); //do not animate the change
}
focusTopChild();
}
else
setFocus(); //Remove focus from the child. We only have one window
}
void KMdiChildArea::focusTopChild()
{
KMdiChildFrm* lastChild = topChild();
if ( !lastChild )
{
kdDebug( 760 ) << k_funcinfo << "No more child windows left" << endl;
emit lastChildFrmClosed();
return;
}
if ( !lastChild->m_pClient->hasFocus() )
{
//disable the labels of all the other children
TQPtrListIterator<KMdiChildFrm> it ( *m_pZ );
for ( ; ( *it ); ++it )
{
if ( ( *it ) != lastChild )
( *it )->m_pCaption->setActive( false );
}
kdDebug( 760 ) << k_funcinfo << "Giving focus to " << lastChild->caption() << endl;
lastChild->raise();
lastChild->m_pClient->activate();
}
}
void KMdiChildArea::cascadeWindows()
{
kdDebug( 760 ) << k_funcinfo << "cascading windows but not changing their size" << endl;
int idx = 0;
TQPtrList<KMdiChildFrm> list( *m_pZ );
list.setAutoDelete( false );
while ( !list.isEmpty() )
{
KMdiChildFrm* childFrm = list.first();
if ( childFrm->state() != KMdiChildFrm::Minimized )
{
if ( childFrm->state() == KMdiChildFrm::Maximized )
childFrm->restorePressed();
childFrm->move( getCascadePoint( idx ) );
idx++;
}
list.removeFirst();
}
focusTopChild();
}
void KMdiChildArea::cascadeMaximized()
{
kdDebug( 760 ) << k_funcinfo << "cascading windows. will make sure they are minimum sized" << endl;
int idx = 0;
TQPtrList<KMdiChildFrm> list( *m_pZ );
list.setAutoDelete( false );
while ( !list.isEmpty() )
{
KMdiChildFrm* childFrm = list.first();
if (childFrm->state() != KMdiChildFrm::Minimized )
{
if (childFrm->state() == KMdiChildFrm::Maximized )
childFrm->restorePressed();
TQPoint pnt( getCascadePoint( idx ) );
childFrm->move( pnt );
TQSize curSize( width() - pnt.x(), height() - pnt.y() );
if ( ( childFrm->tqminimumSize().width() > curSize.width() ) ||
( childFrm->tqminimumSize().height() > curSize.height() ) )
{
childFrm->resize( childFrm->tqminimumSize() );
}
else
childFrm->resize( curSize );
idx++;
}
list.removeFirst();
}
focusTopChild();
}
void KMdiChildArea::expandVertical()
{
kdDebug( 760 ) << k_funcinfo << "expanding all child frames vertically" << endl;
int idx = 0;
TQPtrList<KMdiChildFrm> list( *m_pZ );
list.setAutoDelete( false );
while ( !list.isEmpty() )
{
KMdiChildFrm* childFrm = list.first();
if ( childFrm->state() != KMdiChildFrm::Minimized )
{
if ( childFrm->state() == KMdiChildFrm::Maximized )
childFrm->restorePressed();
childFrm->setGeometry( childFrm->x(), 0, childFrm->width(), height() );
idx++;
}
list.removeFirst();
}
focusTopChild();
}
void KMdiChildArea::expandHorizontal()
{
kdDebug( 760 ) << k_funcinfo << "expanding all child frames horizontally" << endl;
int idx = 0;
TQPtrList<KMdiChildFrm> list( *m_pZ );
list.setAutoDelete( false );
while ( !list.isEmpty() )
{
KMdiChildFrm* childFrm = list.first();
if ( childFrm->state() != KMdiChildFrm::Minimized )
{
if ( childFrm->state() == KMdiChildFrm::Maximized )
childFrm->restorePressed();
childFrm->setGeometry( 0, childFrm->y(), width(), childFrm->height() );
idx++;
}
list.removeFirst();
}
focusTopChild();
}
int KMdiChildArea::getVisibleChildCount() const
{
int visibleChildCount = 0;
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
{
if ( ( *it )->state() != KMdiChildFrm::Minimized && ( *it )->isVisible() )
visibleChildCount++;
}
return visibleChildCount;
}
void KMdiChildArea::tilePragma()
{
kdDebug( 760 ) << k_funcinfo << endl;
tileAllInternal( 9 );
}
void KMdiChildArea::tileAllInternal( int maxWnds )
{
kdDebug( 760 ) << k_funcinfo << endl;
//NUM WINDOWS = 1,2,3,4,5,6,7,8,9
static int colstable[ 9 ] = { 1, 1, 1, 2, 2, 2, 3, 3, 3 }; //num columns
static int rowstable[ 9 ] = { 1, 2, 3, 2, 3, 3, 3, 3, 3 }; //num rows
static int lastwindw[ 9 ] = { 1, 1, 1, 1, 2, 1, 3, 2, 1 }; //last window multiplier
static int colrecall[ 9 ] = { 0, 0, 0, 3, 3, 3, 6, 6, 6 }; //adjust self
static int rowrecall[ 9 ] = { 0, 0, 0, 0, 4, 4, 4, 4, 4 }; //adjust self
int numVisible = getVisibleChildCount();
if ( numVisible < 1 )
{
kdDebug( 760 ) << k_funcinfo << "No visible child windows to tile" << endl;
return;
}
KMdiChildFrm *tcw = topChild();
int numToHandle = ( ( numVisible > maxWnds ) ? maxWnds : numVisible );
int xQuantum = width() / colstable[ numToHandle - 1 ];
int widthToCompare;
if ( tcw->minimumWidth() > m_defaultChildFrmSize.width() )
widthToCompare = tcw->minimumWidth();
else
widthToCompare = m_defaultChildFrmSize.width();
if ( xQuantum < widthToCompare )
{
if ( colrecall[ numToHandle - 1 ] != 0 )
{
tileAllInternal( colrecall[ numToHandle - 1 ] );
return ;
}
}
int yQuantum = height() / rowstable[ numToHandle - 1 ];
int heightToCompare;
if ( tcw->minimumHeight() > m_defaultChildFrmSize.height() )
heightToCompare = tcw->minimumHeight();
else
heightToCompare = m_defaultChildFrmSize.height();
if ( yQuantum < heightToCompare )
{
if ( rowrecall[ numToHandle - 1 ] != 0 )
{
tileAllInternal( rowrecall[ numToHandle - 1 ] );
return ;
}
}
int curX = 0;
int curY = 0;
int curRow = 1;
int curCol = 1;
int curWin = 1;
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
{
KMdiChildFrm* child = ( *it );
if ( child->state() != KMdiChildFrm::Minimized )
{
//restore the window
if ( child->state() == KMdiChildFrm::Maximized )
child->restorePressed();
if ( ( curWin % numToHandle ) == 0 )
child->setGeometry( curX, curY, xQuantum * lastwindw[ numToHandle - 1 ], yQuantum );
else
child->setGeometry( curX, curY, xQuantum, yQuantum );
//example : 12 windows : 3 cols 3 rows
if ( curCol < colstable[ numToHandle - 1 ] )
{ //curCol<3
curX += xQuantum; //add a column in the same row
curCol++; //increase current column
}
else
{
curX = 0; //new row
curCol = 1; //column 1
if ( curRow < rowstable[ numToHandle - 1 ] )
{ //curRow<3
curY += yQuantum; //add a row
curRow++; //increase current row
}
else
{
curY = 0; //restart from beginning
curRow = 1; //reset current row
}
}
curWin++;
}
}
if ( tcw )
tcw->m_pClient->activate();
}
void KMdiChildArea::tileAnodine()
{
KMdiChildFrm * topChildWindow = topChild();
int numVisible = getVisibleChildCount(); // count visible windows
if ( numVisible < 1 )
return ;
int numCols = int( sqrt( ( double ) numVisible ) ); // set columns to square root of visible count
// create an array to form grid tqlayout
int *numRows = new int[ numCols ];
int numCurCol = 0;
while ( numCurCol < numCols )
{
numRows[numCurCol] = numCols; // create primary grid values
numCurCol++;
}
int numDiff = numVisible - ( numCols * numCols ); // count extra rows
int numCurDiffCol = numCols; // set column limiting for grid updates
while ( numDiff > 0 )
{
numCurDiffCol--;
numRows[numCurDiffCol]++; // add extra rows to column grid
if ( numCurDiffCol < 1 )
numCurDiffCol = numCols; // rotate through the grid
numDiff--;
}
numCurCol = 0;
int numCurRow = 0;
int curX = 0;
int curY = 0;
// the following code will size everything based on my grid above
// there is no limit to the number of windows it will handle
// it's great when a kick-ass theory works!!! // Pragma :)
int xQuantum = width() / numCols;
int yQuantum = height() / numRows[numCurCol];
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
{
KMdiChildFrm* child = ( *it );
if ( child->state() != KMdiChildFrm::Minimized )
{
if ( child->state() == KMdiChildFrm::Maximized )
child->restorePressed();
child->setGeometry( curX, curY, xQuantum, yQuantum );
numCurRow++;
curY += yQuantum;
if ( numCurRow == numRows[numCurCol] )
{
numCurRow = 0;
numCurCol++;
curY = 0;
curX += xQuantum;
if ( numCurCol != numCols )
yQuantum = height() / numRows[ numCurCol ];
}
}
}
delete[] numRows;
if ( topChildWindow )
topChildWindow->m_pClient->activate();
}
void KMdiChildArea::tileVertically()
{
KMdiChildFrm * topChildWindow = topChild();
int numVisible = getVisibleChildCount(); // count visible windows
if ( numVisible < 1 )
return ;
int w = width() / numVisible;
int lastWidth = 0;
if ( numVisible > 1 )
lastWidth = width() - ( w * ( numVisible - 1 ) );
else
lastWidth = w;
int h = height();
int posX = 0;
int countVisible = 0;
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
{
KMdiChildFrm* child = ( *it );
if ( child->state() != KMdiChildFrm::Minimized )
{
if ( child->state() == KMdiChildFrm::Maximized )
child->restorePressed();
countVisible++;
if ( countVisible < numVisible )
{
child->setGeometry( posX, 0, w, h );
posX += w;
}
else
{ // last visible childframe
child->setGeometry( posX, 0, lastWidth, h );
}
}
}
if ( topChildWindow )
topChildWindow->m_pClient->activate();
}
void KMdiChildArea::tqlayoutMinimizedChildren()
{
int posX = 0;
int posY = height();
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
{
KMdiChildFrm* child = *( it );
if ( child->state() == KMdiChildFrm::Minimized )
{
if ( ( posX > 0 ) && ( posX + child->width() > width() ) )
{
posX = 0;
posY -= child->height();
}
child->move( posX, posY - child->height() );
posX = child->tqgeometry().right();
}
}
}
void KMdiChildArea::setMdiCaptionFont( const TQFont& fnt )
{
m_captionFont = fnt;
TQFontMetrics fm( m_captionFont );
m_captionFontLineSpacing = fm.lineSpacing();
TQPtrListIterator<KMdiChildFrm> it( *m_pZ );
for ( ; ( *it ); ++it )
( *it )->doResize();
}
void KMdiChildArea::setMdiCaptionActiveForeColor( const TQColor& clr )
{
m_captionActiveForeColor = clr;
}
void KMdiChildArea::setMdiCaptionActiveBackColor( const TQColor& clr )
{
m_captionActiveBackColor = clr;
}
void KMdiChildArea::setMdiCaptionInactiveForeColor( const TQColor& clr )
{
m_captionInactiveForeColor = clr;
}
void KMdiChildArea::setMdiCaptionInactiveBackColor( const TQColor& clr )
{
m_captionInactiveBackColor = clr;
}
//KDE4: remove
void KMdiChildArea::getCaptionColors( const TQPalette& /*pal*/, TQColor& activeBG,
TQColor& activeFG, TQColor& inactiveBG, TQColor& inactiveFG )
{
activeBG = KGlobalSettings::activeTitleColor();
activeFG = KGlobalSettings::activeTextColor();
inactiveBG = KGlobalSettings::inactiveTitleColor();
inactiveFG = KGlobalSettings::inactiveTextColor();
}
// kate: space-indent off; tqreplace-tabs off; tab-width 4; indent-mode csands;