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tdelibs/tdemdi/tdemdichildview.cpp

773 lines
21 KiB

//----------------------------------------------------------------------------
// filename : tdemdichildview.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 a
// -06/2000 stand-alone Qt extension set of
// classes and a Qt-based library
// 2000-2003 maintained by the KDevelop project
// patches : 02/2000 by Massimo Morin (mmorin@schedsys.com)
// */2000 by Lars Beikirch (Lars.Beikirch@gmx.net)
// 02/2001 by Eva Brucherseifer (eva@rt.e-technik.tu-darmstadt.de)
// 01/2003 by Jens Zurheide (jens.zurheide@gmx.de)
//
// 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 "tdemdichildview.h"
#include "tdemdichildview.moc"
#include <tqdatetime.h>
#include <tqobjectlist.h>
#include "tdemdimainfrm.h"
#include "tdemdichildfrm.h"
#include "tdemdidefines.h"
#include <kdebug.h>
#include <tdelocale.h>
#include <tqiconset.h>
//============ KMdiChildView ============//
KMdiChildView::KMdiChildView( const TQString& caption, TQWidget* parentWidget, const char* name, WFlags f )
: TQWidget( parentWidget, name, f )
, m_focusedChildWidget( 0L )
, m_firstFocusableChildWidget( 0L )
, m_lastFocusableChildWidget( 0L )
, m_stateChanged( true )
, m_bToolView( false )
, m_bInterruptActivation( false )
, m_bMainframesActivateViewIsPending( false )
, m_bFocusInEventIsPending( false )
, m_trackChanges( 0 )
{
setGeometry( 0, 0, 0, 0 ); // reset
if ( caption != 0L )
m_szCaption = caption;
else
m_szCaption = i18n( "Unnamed" );
m_sTabCaption = m_szCaption;
setFocusPolicy( TQ_ClickFocus );
installEventFilter( this );
// store the current time
updateTimeStamp();
}
//============ KMdiChildView ============//
KMdiChildView::KMdiChildView( TQWidget* parentWidget, const char* name, WFlags f )
: TQWidget( parentWidget, name, f )
, m_focusedChildWidget( 0L )
, m_firstFocusableChildWidget( 0L )
, m_lastFocusableChildWidget( 0L )
, m_stateChanged( true )
, m_bToolView( false )
, m_bInterruptActivation( false )
, m_bMainframesActivateViewIsPending( false )
, m_bFocusInEventIsPending( false )
, m_trackChanges( 0 )
{
setGeometry( 0, 0, 0, 0 ); // reset
m_szCaption = i18n( "Unnamed" );
m_sTabCaption = m_szCaption;
setFocusPolicy( TQ_ClickFocus );
installEventFilter( this );
// store the current time
updateTimeStamp();
}
//============ ~KMdiChildView ============//
KMdiChildView::~KMdiChildView()
{
kdDebug( 760 ) << k_funcinfo << endl;
}
void KMdiChildView::trackIconAndCaptionChanges( TQWidget *view )
{
m_trackChanges = view;
}
//============== internal geometry ==============//
TQRect KMdiChildView::internalGeometry() const
{
if ( mdiParent() )
{ // is attached
// get the client area coordinates inside the MDI child frame
TQRect posInFrame = geometry();
// map these values to the parent of the MDI child frame
// (this usually is the MDI child area) and return
TQPoint ptTopLeft = mdiParent() ->mapToParent( posInFrame.topLeft() );
TQSize sz = size();
return TQRect( ptTopLeft, sz );
}
else
{
TQRect geo = geometry();
TQRect frameGeo = externalGeometry();
return TQRect( frameGeo.x(), frameGeo.y(), geo.width(), geo.height() );
// return geometry();
}
}
//============== set internal geometry ==============//
void KMdiChildView::setInternalGeometry( const TQRect& newGeometry )
{
if ( mdiParent() )
{ // is attached
// retrieve the frame size
TQRect geo = internalGeometry();
TQRect frameGeo = externalGeometry();
int nFrameSizeTop = geo.y() - frameGeo.y();
int nFrameSizeLeft = geo.x() - frameGeo.x();
// create the new geometry that is accepted by the TQWidget::setGeometry() method
TQRect newGeoQt;
newGeoQt.setX( newGeometry.x() - nFrameSizeLeft );
newGeoQt.setY( newGeometry.y() - nFrameSizeTop );
newGeoQt.setWidth( newGeometry.width() + nFrameSizeLeft + KMDI_CHILDFRM_DOUBLE_BORDER / 2 );
newGeoQt.setHeight( newGeometry.height() + nFrameSizeTop + KMDI_CHILDFRM_DOUBLE_BORDER / 2 );
// newGeoQt.setWidth(newGeometry.width()+KMDI_MDI_CHILDFRM_DOUBLE_BORDER);
// newGeoQt.setHeight(newGeometry.height()+mdiParent()->captionHeight()+KMDI_MDI_CHILDFRM_DOUBLE_BORDER);
// set the geometry
mdiParent()->setGeometry( newGeoQt );
}
else
{
// retrieve the frame size
TQRect geo = internalGeometry();
TQRect frameGeo = externalGeometry();
int nFrameSizeTop = geo.y() - frameGeo.y();
int nFrameSizeLeft = geo.x() - frameGeo.x();
// create the new geometry that is accepted by the TQWidget::setGeometry() method
TQRect newGeoQt;
newGeoQt.setX( newGeometry.x() - nFrameSizeLeft );
newGeoQt.setY( newGeometry.y() - nFrameSizeTop );
newGeoQt.setWidth( newGeometry.width() );
newGeoQt.setHeight( newGeometry.height() );
// set the geometry
setGeometry( newGeoQt );
}
}
//============== external geometry ==============//
TQRect KMdiChildView::externalGeometry() const
{
return mdiParent() ? mdiParent()->frameGeometry() : frameGeometry();
}
//============== set external geometry ==============//
void KMdiChildView::setExternalGeometry( const TQRect& newGeometry )
{
if ( mdiParent() )
{ // is attached
mdiParent() ->setGeometry( newGeometry );
}
else
{
// retrieve the frame size
TQRect geo = internalGeometry();
TQRect frameGeo = externalGeometry();
int nTotalFrameWidth = frameGeo.width() - geo.width();
int nTotalFrameHeight = frameGeo.height() - geo.height();
int nFrameSizeTop = geo.y() - frameGeo.y();
int nFrameSizeLeft = geo.x() - frameGeo.x();
// create the new geometry that is accepted by the TQWidget::setGeometry() method
// not attached => the window system makes the frame
TQRect newGeoQt;
newGeoQt.setX( newGeometry.x() + nFrameSizeLeft );
newGeoQt.setY( newGeometry.y() + nFrameSizeTop );
newGeoQt.setWidth( newGeometry.width() - nTotalFrameWidth );
newGeoQt.setHeight( newGeometry.height() - nTotalFrameHeight );
// set the geometry
setGeometry( newGeoQt );
}
}
//============== minimize ==============//
void KMdiChildView::minimize( bool bAnimate )
{
if ( mdiParent() )
{
if ( !isMinimized() )
{
mdiParent() ->setState( KMdiChildFrm::Minimized, bAnimate );
}
}
else
showMinimized();
}
void KMdiChildView::showMinimized()
{
emit isMinimizedNow();
TQWidget::showMinimized();
}
//slot:
void KMdiChildView::minimize()
{
minimize( true );
}
//============= maximize ==============//
void KMdiChildView::maximize( bool bAnimate )
{
if ( mdiParent() )
{
if ( !isMaximized() )
{
mdiParent() ->setState( KMdiChildFrm::Maximized, bAnimate );
emit mdiParentNowMaximized( true );
}
}
else
showMaximized();
}
void KMdiChildView::showMaximized()
{
emit isMaximizedNow();
TQWidget::showMaximized();
}
//slot:
void KMdiChildView::maximize()
{
maximize( true );
}
//============== restoreGeometry ================//
TQRect KMdiChildView::restoreGeometry()
{
if ( mdiParent() )
return mdiParent() ->restoreGeometry();
else //FIXME not really supported, may be we must use Windows or X11 funtions
return geometry();
}
//============== setRestoreGeometry ================//
void KMdiChildView::setRestoreGeometry( const TQRect& newRestGeo )
{
if ( mdiParent() )
mdiParent()->setRestoreGeometry( newRestGeo );
}
//============== attach ================//
void KMdiChildView::attach()
{
emit attachWindow( this, true );
}
//============== detach =================//
void KMdiChildView::detach()
{
emit detachWindow( this, true );
}
//=============== isMinimized ? =================//
bool KMdiChildView::isMinimized() const
{
if ( mdiParent() )
return ( mdiParent()->state() == KMdiChildFrm::Minimized );
else
return TQWidget::isMinimized();
}
//============== isMaximized ? ==================//
bool KMdiChildView::isMaximized() const
{
if ( mdiParent() )
return ( mdiParent()->state() == KMdiChildFrm::Maximized );
else
return TQWidget::isMaximized();
}
//============== restore ================//
void KMdiChildView::restore()
{
if ( mdiParent() )
{
if ( isMaximized() )
emit mdiParentNowMaximized( false );
if ( isMinimized() || isMaximized() )
mdiParent()->setState( KMdiChildFrm::Normal );
}
else
showNormal();
}
void KMdiChildView::showNormal()
{
emit isRestoredNow();
TQWidget::showNormal();
}
//=============== youAreAttached ============//
void KMdiChildView::youAreAttached( KMdiChildFrm *lpC )
{
lpC->setCaption( m_szCaption );
emit isAttachedNow();
}
//================ youAreDetached =============//
void KMdiChildView::youAreDetached()
{
setCaption( m_szCaption );
setTabCaption( m_sTabCaption );
if ( myIconPtr() )
setIcon( *( myIconPtr() ) );
setFocusPolicy( TQ_StrongFocus );
emit isDetachedNow();
}
//================ setCaption ================//
// this set the caption of only the window
void KMdiChildView::setCaption( const TQString& szCaption )
{
// this will work only for window
m_szCaption = szCaption;
if ( mdiParent() )
mdiParent() ->setCaption( m_szCaption );
else //have to call the parent one
TQWidget::setCaption( m_szCaption );
emit windowCaptionChanged( m_szCaption );
}
//============== closeEvent ================//
void KMdiChildView::closeEvent( TQCloseEvent *e )
{
e->ignore(); //we ignore the event , and then close later if needed.
emit childWindowCloseRequest( this );
}
//================ myIconPtr =================//
TQPixmap* KMdiChildView::myIconPtr()
{
return 0;
}
//============= focusInEvent ===============//
void KMdiChildView::focusInEvent( TQFocusEvent *e )
{
TQWidget::focusInEvent( e );
// every widget get a focusInEvent when a popup menu is opened!?! -> maybe bug of QT
if ( e && ( ( e->reason() ) == TQFocusEvent::Popup ) )
return ;
m_bFocusInEventIsPending = true;
activate();
m_bFocusInEventIsPending = false;
emit gotFocus( this );
}
//============= activate ===============//
void KMdiChildView::activate()
{
// avoid circularity
static bool s_bActivateIsPending = false;
if ( s_bActivateIsPending )
return ;
s_bActivateIsPending = true;
// raise the view and push the taskbar button
if ( !m_bMainframesActivateViewIsPending )
emit focusInEventOccurs( this );
// if this method was called directly, check if the mainframe wants that we interrupt
if ( m_bInterruptActivation )
m_bInterruptActivation = false;
else
{
if ( !m_bFocusInEventIsPending )
setFocus();
kdDebug( 760 ) << k_funcinfo << endl;
emit activated( this );
}
if ( m_focusedChildWidget != 0L )
m_focusedChildWidget->setFocus();
else
{
if ( m_firstFocusableChildWidget != 0L )
{
m_firstFocusableChildWidget->setFocus();
m_focusedChildWidget = m_firstFocusableChildWidget;
}
}
s_bActivateIsPending = false;
}
//============= focusOutEvent ===============//
void KMdiChildView::focusOutEvent( TQFocusEvent* e )
{
TQWidget::focusOutEvent( e );
emit lostFocus( this );
}
//============= resizeEvent ===============//
void KMdiChildView::resizeEvent( TQResizeEvent* e )
{
TQWidget::resizeEvent( e );
if ( m_stateChanged )
{
m_stateChanged = false;
if ( isMaximized() )
{ //maximized
emit isMaximizedNow();
}
else if ( isMinimized() )
{ //minimized
emit isMinimizedNow();
}
else
{ //is restored
emit isRestoredNow();
}
}
}
void KMdiChildView::slot_childDestroyed()
{
// do what we do if a child is removed
// if we lost a child we uninstall ourself as event filter for the lost
// child and its children
const TQObject * pLostChild = sender();
if ( pLostChild && ( pLostChild->isWidgetType() ) )
{
TQObjectList* list = ( ( TQObject* ) ( pLostChild ) ) ->queryList( "TQWidget" );
list->insert( 0, pLostChild ); // add the lost child to the list too, just to save code
TQObjectListIt it( *list ); // iterate over all lost child widgets
TQObject* obj;
while ( ( obj = it.current() ) != 0 )
{ // for each found object...
TQWidget * widg = ( TQWidget* ) obj;
++it;
widg->removeEventFilter( this );
if ( m_firstFocusableChildWidget == widg )
m_firstFocusableChildWidget = 0L; // reset first widget
if ( m_lastFocusableChildWidget == widg )
m_lastFocusableChildWidget = 0L; // reset last widget
if ( m_focusedChildWidget == widg )
m_focusedChildWidget = 0L; // reset focused widget
}
delete list; // delete the list, not the objects
}
}
//============= eventFilter ===============//
bool KMdiChildView::eventFilter( TQObject *obj, TQEvent *e )
{
if ( e->type() == TQEvent::KeyPress && isAttached() )
{
TQKeyEvent* ke = ( TQKeyEvent* ) e;
if ( ke->key() == Qt::Key_Tab )
{
TQWidget* w = ( TQWidget* ) obj;
TQ_FocusPolicy wfp = w->focusPolicy();
if ( wfp == TQ_StrongFocus || wfp == TQ_TabFocus || w->focusPolicy() == TQ_WheelFocus )
{
if ( m_lastFocusableChildWidget != 0 )
{
if ( w == m_lastFocusableChildWidget )
{
if ( w != m_firstFocusableChildWidget )
m_firstFocusableChildWidget->setFocus();
}
}
}
}
}
else if ( e->type() == TQEvent::FocusIn )
{
if ( obj->isWidgetType() )
{
TQObjectList * list = queryList( "TQWidget" );
if ( list->find( obj ) != -1 )
m_focusedChildWidget = ( TQWidget* ) obj;
delete list; // delete the list, not the objects
}
if ( !isAttached() )
{ // is toplevel, for attached views activation is done by main frame event filter
static bool m_bActivationIsPending = false;
if ( !m_bActivationIsPending )
{
m_bActivationIsPending = true;
activate(); // sets the focus
m_bActivationIsPending = false;
}
}
}
else if ( e->type() == TQEvent::ChildRemoved )
{
// if we lost a child we uninstall ourself as event filter for the lost
// child and its children
TQObject * pLostChild = TQT_TQOBJECT(( ( TQChildEvent* ) e ) ->child());
if ( ( pLostChild != 0L ) && ( pLostChild->isWidgetType() ) )
{
TQObjectList * list = pLostChild->queryList( "TQWidget" );
list->insert( 0, pLostChild ); // add the lost child to the list too, just to save code
TQObjectListIt it( *list ); // iterate over all lost child widgets
TQObject * o;
while ( ( o = it.current() ) != 0 )
{ // for each found object...
TQWidget * widg = ( TQWidget* ) o;
++it;
widg->removeEventFilter( this );
TQ_FocusPolicy wfp = widg->focusPolicy();
if ( wfp == TQ_StrongFocus || wfp == TQ_TabFocus || widg->focusPolicy() == TQ_WheelFocus )
{
if ( m_firstFocusableChildWidget == widg )
m_firstFocusableChildWidget = 0L; // reset first widget
if ( m_lastFocusableChildWidget == widg )
m_lastFocusableChildWidget = 0L; // reset last widget
}
}
delete list; // delete the list, not the objects
}
}
else if ( e->type() == TQEvent::ChildInserted )
{
// if we got a new child and we are attached to the MDI system we
// install ourself as event filter for the new child and its children
// (as we did when we were added to the MDI system).
TQObject * pNewChild = TQT_TQOBJECT(( ( TQChildEvent* ) e ) ->child());
if ( ( pNewChild != 0L ) && ( pNewChild->isWidgetType() ) )
{
TQWidget * pNewWidget = ( TQWidget* ) pNewChild;
if ( pNewWidget->testWFlags( (WFlags)(WType_Dialog | WShowModal) ) )
return false;
TQObjectList *list = pNewWidget->queryList( "TQWidget" );
list->insert( 0, pNewChild ); // add the new child to the list too, just to save code
TQObjectListIt it( *list ); // iterate over all new child widgets
TQObject * o;
while ( ( o = it.current() ) != 0 )
{ // for each found object...
TQWidget * widg = ( TQWidget* ) o;
++it;
widg->installEventFilter( this );
connect( widg, TQT_SIGNAL( destroyed() ), this, TQT_SLOT( slot_childDestroyed() ) );
TQ_FocusPolicy wfp = widg->focusPolicy();
if ( wfp == TQ_StrongFocus || wfp == TQ_TabFocus || widg->focusPolicy() == TQ_WheelFocus )
{
if ( m_firstFocusableChildWidget == 0 )
m_firstFocusableChildWidget = widg; // first widge
m_lastFocusableChildWidget = widg; // last widget
}
}
delete list; // delete the list, not the objects
}
}
else
{
if ( e->type() == TQEvent::IconChange )
{
// tqDebug("KMDiChildView:: TQEvent:IconChange intercepted\n");
if ( obj == this )
iconUpdated( this, icon() ? ( *icon() ) : TQPixmap() );
else if ( obj == m_trackChanges )
setIcon( m_trackChanges->icon() ? ( *( m_trackChanges->icon() ) ) : TQPixmap() );
}
if ( e->type() == TQEvent::CaptionChange )
{
if ( obj == this )
captionUpdated( this, caption() );
}
}
return false; // standard event processing
}
/** Switches interposing in event loop of all current child widgets off. */
void KMdiChildView::removeEventFilterForAllChildren()
{
TQObjectList* list = queryList( "TQWidget" );
TQObjectListIt it( *list ); // iterate over all child widgets
TQObject* obj;
while ( ( obj = it.current() ) != 0 )
{ // for each found object...
TQWidget* widg = ( TQWidget* ) obj;
++it;
widg->removeEventFilter( this );
}
delete list; // delete the list, not the objects
}
TQWidget* KMdiChildView::focusedChildWidget()
{
return m_focusedChildWidget;
}
void KMdiChildView::setFirstFocusableChildWidget( TQWidget* firstFocusableChildWidget )
{
m_firstFocusableChildWidget = firstFocusableChildWidget;
}
void KMdiChildView::setLastFocusableChildWidget( TQWidget* lastFocusableChildWidget )
{
m_lastFocusableChildWidget = lastFocusableChildWidget;
}
/** Set a new value of the task bar button caption */
void KMdiChildView::setTabCaption ( const TQString& stbCaption )
{
m_sTabCaption = stbCaption;
emit tabCaptionChanged( m_sTabCaption );
}
void KMdiChildView::setMDICaption ( const TQString& caption )
{
setCaption( caption );
setTabCaption( caption );
}
/** sets an ID */
void KMdiChildView::setWindowMenuID( int id )
{
m_windowMenuID = id;
}
//============= slot_clickedInWindowMenu ===============//
/** called if someone click on the "Window" menu item for this child frame window */
void KMdiChildView::slot_clickedInWindowMenu()
{
updateTimeStamp();
emit clickedInWindowMenu( m_windowMenuID );
}
//============= slot_clickedInDockMenu ===============//
/** called if someone click on the "Dock/Undock..." menu item for this child frame window */
void KMdiChildView::slot_clickedInDockMenu()
{
emit clickedInDockMenu( m_windowMenuID );
}
//============= setMinimumSize ===============//
void KMdiChildView::setMinimumSize( int minw, int minh )
{
TQWidget::setMinimumSize( minw, minh );
if ( mdiParent() && mdiParent()->state() != KMdiChildFrm::Minimized )
{
mdiParent() ->setMinimumSize( minw + KMDI_CHILDFRM_DOUBLE_BORDER,
minh + KMDI_CHILDFRM_DOUBLE_BORDER + KMDI_CHILDFRM_SEPARATOR + mdiParent() ->captionHeight() );
}
}
//============= setMaximumSize ===============//
void KMdiChildView::setMaximumSize( int maxw, int maxh )
{
if ( mdiParent() && mdiParent()->state() == KMdiChildFrm::Normal )
{
int w = maxw + KMDI_CHILDFRM_DOUBLE_BORDER;
if ( w > TQWIDGETSIZE_MAX )
w = TQWIDGETSIZE_MAX;
int h = maxh + KMDI_CHILDFRM_DOUBLE_BORDER + KMDI_CHILDFRM_SEPARATOR + mdiParent() ->captionHeight();
if ( h > TQWIDGETSIZE_MAX )
h = TQWIDGETSIZE_MAX;
mdiParent()->setMaximumSize( w, h );
}
TQWidget::setMaximumSize( maxw, maxh );
}
//============= show ===============//
void KMdiChildView::show()
{
if ( mdiParent() )
mdiParent()->show();
TQWidget::show();
}
//============= hide ===============//
void KMdiChildView::hide()
{
if ( mdiParent() )
mdiParent()->hide();
TQWidget::hide();
}
//============= raise ===============//
void KMdiChildView::raise()
{
if ( mdiParent() ) //TODO Check Z-order
mdiParent()->raise();
TQWidget::raise();
}