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/* This file is part of the KDE libraries
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Copyright (C) 1999 Torben Weis <weis@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include <tqtimer.h>
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#include <tqpainter.h>
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#include <tqpixmapcache.h>
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#include <tqcleanuphandler.h>
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#include "kiconview.h"
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#include "kwordwrap.h"
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#include <tdeconfig.h>
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#include <kdebug.h>
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#include <tdeglobal.h>
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#include <tdeglobalsettings.h>
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#include <tdeapplication.h>
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#include <kipc.h>
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#include <kcursor.h>
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#include <kpixmap.h>
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#include <kpixmapeffect.h>
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class TDEIconView::TDEIconViewPrivate
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{
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public:
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TDEIconViewPrivate() {
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mode = TDEIconView::Execute;
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fm = 0L;
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doAutoSelect = true;
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textHeight = 0;
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dragHoldItem = 0L;
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}
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TDEIconView::Mode mode;
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bool doAutoSelect;
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TQFontMetrics *fm;
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TQPixmapCache maskCache;
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int textHeight;
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TQIconViewItem *dragHoldItem;
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TQTimer dragHoldTimer;
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TQTimer doubleClickIgnoreTimer;
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};
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TDEIconView::TDEIconView( TQWidget *parent, const char *name, WFlags f )
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: TQIconView( parent, name, f )
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{
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d = new TDEIconViewPrivate;
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connect( this, TQT_SIGNAL( onViewport() ),
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this, TQT_SLOT( slotOnViewport() ) );
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connect( this, TQT_SIGNAL( onItem( TQIconViewItem * ) ),
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this, TQT_SLOT( slotOnItem( TQIconViewItem * ) ) );
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slotSettingsChanged( TDEApplication::SETTINGS_MOUSE );
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if ( kapp ) { // maybe null when used inside designer
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connect( kapp, TQT_SIGNAL( settingsChanged(int) ), TQT_SLOT( slotSettingsChanged(int) ) );
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kapp->addKipcEventMask( KIPC::SettingsChanged );
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}
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m_pCurrentItem = 0L;
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m_pAutoSelect = new TQTimer( this );
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connect( m_pAutoSelect, TQT_SIGNAL( timeout() ),
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this, TQT_SLOT( slotAutoSelect() ) );
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connect( &d->dragHoldTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(slotDragHoldTimeout()) );
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}
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TDEIconView::~TDEIconView()
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{
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delete d->fm;
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delete d;
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}
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void TDEIconView::setMode( TDEIconView::Mode mode )
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{
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d->mode = mode;
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}
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TDEIconView::Mode TDEIconView::mode() const
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{
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return d->mode;
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}
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void TDEIconView::slotOnItem( TQIconViewItem *item )
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{
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if ( item ) {
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if ( m_bUseSingle ) {
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if ( m_bChangeCursorOverItem )
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viewport()->setCursor( KCursor().handCursor() );
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if ( (m_autoSelectDelay > -1) ) {
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m_pAutoSelect->start( m_autoSelectDelay, true );
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}
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}
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m_pCurrentItem = item;
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}
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}
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void TDEIconView::slotOnViewport()
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{
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if ( m_bUseSingle && m_bChangeCursorOverItem )
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viewport()->unsetCursor();
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m_pAutoSelect->stop();
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m_pCurrentItem = 0L;
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}
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void TDEIconView::slotSettingsChanged(int category)
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{
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if ( category != TDEApplication::SETTINGS_MOUSE )
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return;
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m_bUseSingle = TDEGlobalSettings::singleClick();
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//kdDebug() << "TDEIconView::slotSettingsChanged for mouse, usesingle=" << m_bUseSingle << endl;
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disconnect( this, TQT_SIGNAL( mouseButtonClicked( int, TQIconViewItem *,
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const TQPoint & ) ),
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this, TQT_SLOT( slotMouseButtonClicked( int, TQIconViewItem *,
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const TQPoint & ) ) );
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// disconnect( this, TQT_SIGNAL( doubleClicked( TQIconViewItem *,
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// const TQPoint & ) ),
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// this, TQT_SLOT( slotExecute( TQIconViewItem *,
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// const TQPoint & ) ) );
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if( m_bUseSingle ) {
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connect( this, TQT_SIGNAL( mouseButtonClicked( int, TQIconViewItem *,
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const TQPoint & ) ),
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this, TQT_SLOT( slotMouseButtonClicked( int, TQIconViewItem *,
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const TQPoint & ) ) );
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}
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else {
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// connect( this, TQT_SIGNAL( doubleClicked( TQIconViewItem *,
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// const TQPoint & ) ),
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// this, TQT_SLOT( slotExecute( TQIconViewItem *,
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// const TQPoint & ) ) );
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}
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m_bChangeCursorOverItem = TDEGlobalSettings::changeCursorOverIcon();
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m_autoSelectDelay = m_bUseSingle ? TDEGlobalSettings::autoSelectDelay() : -1;
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if( !m_bUseSingle || !m_bChangeCursorOverItem )
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viewport()->unsetCursor();
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}
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void TDEIconView::slotAutoSelect()
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{
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// check that the item still exists
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if( index( m_pCurrentItem ) == -1 || !d->doAutoSelect )
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return;
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//Give this widget the keyboard focus.
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if( !hasFocus() )
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setFocus();
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ButtonState keybstate = TDEApplication::keyboardMouseState();
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TQIconViewItem* previousItem = currentItem();
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setCurrentItem( m_pCurrentItem );
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if( m_pCurrentItem ) {
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//Shift pressed?
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if( (keybstate & ShiftButton) ) {
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//Temporary implementation of the selection until TQIconView supports it
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bool block = signalsBlocked();
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blockSignals( true );
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//No Ctrl? Then clear before!
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if( !(keybstate & ControlButton) )
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clearSelection();
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bool select = !m_pCurrentItem->isSelected();
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bool update = viewport()->isUpdatesEnabled();
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viewport()->setUpdatesEnabled( false );
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//Calculate the smallest rectangle that contains the current Item
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//and the one that got the autoselect event
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TQRect r;
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TQRect redraw;
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if ( previousItem )
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r = TQRect( QMIN( previousItem->x(), m_pCurrentItem->x() ),
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QMIN( previousItem->y(), m_pCurrentItem->y() ),
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0, 0 );
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else
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r = TQRect( 0, 0, 0, 0 );
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if ( previousItem->x() < m_pCurrentItem->x() )
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r.setWidth( m_pCurrentItem->x() - previousItem->x() + m_pCurrentItem->width() );
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else
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r.setWidth( previousItem->x() - m_pCurrentItem->x() + previousItem->width() );
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if ( previousItem->y() < m_pCurrentItem->y() )
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r.setHeight( m_pCurrentItem->y() - previousItem->y() + m_pCurrentItem->height() );
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else
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r.setHeight( previousItem->y() - m_pCurrentItem->y() + previousItem->height() );
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r = r.normalize();
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//Check for each item whether it is within the rectangle.
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//If yes, select it
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for( TQIconViewItem* i = firstItem(); i; i = i->nextItem() ) {
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if( i->intersects( r ) ) {
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redraw = redraw.unite( i->rect() );
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setSelected( i, select, true );
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}
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}
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blockSignals( block );
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viewport()->setUpdatesEnabled( update );
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repaintContents( redraw, false );
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emit selectionChanged();
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if( selectionMode() == TQIconView::Single )
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emit selectionChanged( m_pCurrentItem );
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//setSelected( m_pCurrentItem, true, (keybstate & ControlButton), (keybstate & ShiftButton) );
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}
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else if( (keybstate & ControlButton) )
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setSelected( m_pCurrentItem, !m_pCurrentItem->isSelected(), true );
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else
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setSelected( m_pCurrentItem, true );
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}
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else
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kdDebug() << "TDEIconView: That's not supposed to happen!!!!" << endl;
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}
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void TDEIconView::emitExecute( TQIconViewItem *item, const TQPoint &pos )
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{
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if ( d->mode != Execute )
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{
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// kdDebug() << "TDEIconView::emitExecute : not in execute mode !" << endl;
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return;
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}
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ButtonState keybstate = TDEApplication::keyboardMouseState();
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m_pAutoSelect->stop();
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//Don<6F>t emit executed if in SC mode and Shift or Ctrl are pressed
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if( !( m_bUseSingle && ((keybstate & ShiftButton) || (keybstate & ControlButton)) ) ) {
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setSelected( item, false );
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viewport()->unsetCursor();
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emit executed( item );
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emit executed( item, pos );
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}
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}
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void TDEIconView::updateDragHoldItem( TQDropEvent *e )
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{
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TQIconViewItem *item = findItem( e->pos() );
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if ( d->dragHoldItem != item)
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{
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d->dragHoldItem = item;
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if( item )
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{
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d->dragHoldTimer.start( 1000, true );
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}
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else
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{
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d->dragHoldTimer.stop();
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}
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}
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}
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void TDEIconView::focusOutEvent( TQFocusEvent *fe )
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{
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m_pAutoSelect->stop();
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TQIconView::focusOutEvent( fe );
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}
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void TDEIconView::leaveEvent( TQEvent *e )
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{
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m_pAutoSelect->stop();
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TQIconView::leaveEvent( e );
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}
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void TDEIconView::contentsMousePressEvent( TQMouseEvent *e )
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{
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if( (selectionMode() == Extended) && (e->state() & ShiftButton) && !(e->state() & ControlButton) ) {
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bool block = signalsBlocked();
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blockSignals( true );
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clearSelection();
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blockSignals( block );
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}
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TQIconView::contentsMousePressEvent( e );
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d->doAutoSelect = false;
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}
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void TDEIconView::contentsMouseDoubleClickEvent ( TQMouseEvent * e )
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{
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TQIconView::contentsMouseDoubleClickEvent( e );
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TQIconViewItem* item = findItem( e->pos() );
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if( item ) {
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if( (e->button() == Qt::LeftButton) && !m_bUseSingle )
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emitExecute( item, e->globalPos() );
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emit doubleClicked( item, e->globalPos() );
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}
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d->doubleClickIgnoreTimer.start(0, true);
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}
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void TDEIconView::slotMouseButtonClicked( int btn, TQIconViewItem *item, const TQPoint &pos )
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{
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//kdDebug() << " TDEIconView::slotMouseButtonClicked() item=" << item << endl;
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if( d->doubleClickIgnoreTimer.isActive() )
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return; // Ignore double click
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if( (btn == Qt::LeftButton) && item )
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emitExecute( item, pos );
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}
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void TDEIconView::contentsMouseReleaseEvent( TQMouseEvent *e )
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{
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d->doAutoSelect = true;
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TQIconView::contentsMouseReleaseEvent( e );
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}
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void TDEIconView::contentsDragEnterEvent( TQDragEnterEvent *e )
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{
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updateDragHoldItem( e );
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TQIconView::contentsDragEnterEvent( e );
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}
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void TDEIconView::contentsDragLeaveEvent( TQDragLeaveEvent *e )
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{
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d->dragHoldTimer.stop();
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d->dragHoldItem = 0L;
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TQIconView::contentsDragLeaveEvent( e );
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}
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void TDEIconView::contentsDragMoveEvent( TQDragMoveEvent *e )
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{
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updateDragHoldItem( e );
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TQIconView::contentsDragMoveEvent( e );
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}
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void TDEIconView::contentsDropEvent( TQDropEvent* e )
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{
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d->dragHoldTimer.stop();
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TQIconView::contentsDropEvent( e );
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}
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void TDEIconView::slotDragHoldTimeout()
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{
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TQIconViewItem *tmp = d->dragHoldItem;
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d->dragHoldItem = 0L;
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emit held( tmp );
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}
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void TDEIconView::takeItem( TQIconViewItem * item )
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{
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if ( item == d->dragHoldItem )
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{
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d->dragHoldTimer.stop();
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d->dragHoldItem = 0L;
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}
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TQIconView::takeItem( item );
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}
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void TDEIconView::cancelPendingHeldSignal()
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{
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d->dragHoldTimer.stop();
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d->dragHoldItem = 0L;
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}
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void TDEIconView::wheelEvent( TQWheelEvent *e )
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{
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if (horizontalScrollBar() && (arrangement() == TQIconView::TopToBottom)) {
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TQWheelEvent ce(e->pos(), e->delta(), e->state(), Qt::Horizontal);
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TQApplication::sendEvent( horizontalScrollBar(), &ce);
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if (ce.isAccepted()) {
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e->accept();
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return;
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}
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}
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TQIconView::wheelEvent(e);
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}
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void TDEIconView::setFont( const TQFont &font )
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{
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delete d->fm;
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d->fm = 0L;
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TQIconView::setFont( font );
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}
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TQFontMetrics *TDEIconView::itemFontMetrics() const
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{
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if (!d->fm) {
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// TQIconView creates one too, but we can't access it
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d->fm = new TQFontMetrics( font() );
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}
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return d->fm;
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}
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TQPixmap TDEIconView::selectedIconPixmap( TQPixmap *pix, const TQColor &col ) const
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{
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TQPixmap m;
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if ( d->maskCache.find( TQString::number( pix->serialNumber() ), m ) )
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return m;
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m = KPixmapEffect::selectedPixmap( KPixmap(*pix), col );
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d->maskCache.insert( TQString::number( pix->serialNumber() ), m );
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return m;
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}
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int TDEIconView::iconTextHeight() const
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{
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return d->textHeight > 0 ? d->textHeight : ( wordWrapIconText() ? 99 : 1 );
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}
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void TDEIconView::setIconTextHeight( int n )
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{
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int oldHeight = iconTextHeight();
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if ( n > 1 )
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d->textHeight = n;
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else
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d->textHeight = 1;
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// so that Qt still shows the tooltip when even a wrapped text is too long
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setWordWrapIconText( false );
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// update view if needed
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if ( iconTextHeight() != oldHeight )
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setFont( font() ); // hack to recalc items
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}
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/////////////
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class TDEIconViewItem::TDEIconViewItemPrivate
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{
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public:
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TDEIconViewItemPrivate() {
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m_pixmapSize = TQSize(0,0);
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}
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public:
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TQSize m_pixmapSize;
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int realTextHeight;
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};
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void TDEIconViewItem::init()
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{
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m_wordWrap = 0L;
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d = 0L;
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calcRect();
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}
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TDEIconViewItem::~TDEIconViewItem()
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{
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delete m_wordWrap;
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if (d) {
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delete d;
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}
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}
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void TDEIconViewItem::calcRect( const TQString& text_ )
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{
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if ( !d ) {
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d = new TDEIconViewItemPrivate;
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}
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d->realTextHeight = -1;
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bool drawRoundedRect = TDEGlobalSettings::iconUseRoundedRect();
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Q_ASSERT( iconView() );
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if ( !iconView() )
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return;
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delete m_wordWrap;
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m_wordWrap = 0L;
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#ifndef NDEBUG // be faster for the end-user, such a bug will have been fixed before hand :)
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if ( !iconView()->inherits("TDEIconView") )
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{
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kdWarning() << "TDEIconViewItem used in a " << iconView()->className() << " !!" << endl;
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return;
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}
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#endif
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//kdDebug() << "TDEIconViewItem::calcRect - " << text() << endl;
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TDEIconView *view = static_cast<TDEIconView *>(iconView());
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TQRect itemIconRect = pixmapRect();
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TQRect itemTextRect = textRect();
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TQRect itemRect = rect();
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int pw = 0;
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int ph = 0;
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#ifndef QT_NO_PICTURE
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if ( picture() ) {
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TQRect br = picture()->boundingRect();
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pw = br.width() + 2;
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ph = br.height() + 2;
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} else
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#endif
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{
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// Qt uses unknown_icon if no pixmap. Let's see if we need that - I doubt it
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if (!pixmap())
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return;
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pw = pixmap()->width() + 2;
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ph = pixmap()->height() + 2;
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}
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itemIconRect.setWidth( pw );
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#if 1 // FIXME
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// There is a bug in Qt which prevents the item from being placed
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// properly when the pixmapRect is not at the top of the itemRect, so we
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// have to increase the height of the pixmapRect and leave it at the top
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// of the itemRect...
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if ( d && !d->m_pixmapSize.isNull() ) {
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itemIconRect.setHeight( d->m_pixmapSize.height() + 2 );
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}
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else
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#endif
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itemIconRect.setHeight( ph );
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int tw = 0;
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if ( d && !d->m_pixmapSize.isNull() ) {
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tw = view->maxItemWidth() - ( view->itemTextPos() == TQIconView::Bottom ? 0 :
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d->m_pixmapSize.width() + 2 );
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}
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else {
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tw = view->maxItemWidth() - ( view->itemTextPos() == TQIconView::Bottom ? 0 :
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itemIconRect.width() );
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}
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TQFontMetrics *fm = view->itemFontMetrics();
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TQString t;
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TQRect r;
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// When is text_ set ? Doesn't look like it's ever set.
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t = text_.isEmpty() ? text() : text_;
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// Max text height
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int nbLines = static_cast<TDEIconView*>( iconView() )->iconTextHeight();
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int height = nbLines > 0 ? fm->height() * nbLines : 0xFFFFFFFF;
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// Should not be higher than pixmap if text is alongside icons
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if ( view->itemTextPos() != TQIconView::Bottom ) {
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if ( d && !d->m_pixmapSize.isNull() )
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height = QMIN( d->m_pixmapSize.height() + 2, height );
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else
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height = QMIN( itemIconRect.height(), height );
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height = QMAX( height, fm->height() );
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}
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// Calculate the word-wrap
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TQRect outerRect( 0, 0, tw - 6, height );
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m_wordWrap = KWordWrap::formatText( *fm, outerRect, 0, t );
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r = m_wordWrap->boundingRect();
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int realWidth = QMAX( QMIN( r.width() + 4, tw ), fm->width( "X" ) );
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if (drawRoundedRect == true) {
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itemTextRect.setWidth( realWidth + 2);
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}
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else {
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itemTextRect.setWidth( realWidth );
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}
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itemTextRect.setHeight( r.height() );
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int w = 0; int h = 0; int y = 0;
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if ( view->itemTextPos() == TQIconView::Bottom ) {
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// If the pixmap size has been specified, use it
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if ( d && !d->m_pixmapSize.isNull() )
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{
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w = QMAX( itemTextRect.width(), d->m_pixmapSize.width() + 2 );
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h = itemTextRect.height() + d->m_pixmapSize.height() + 2 + 1;
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#if 0 // FIXME
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// Waiting for the qt bug to be solved, the pixmapRect must
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// stay on the top...
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y = d->m_pixmapSize.height() + 2 - itemIconRect.height();
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#endif
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}
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else {
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w = QMAX( itemTextRect.width(), itemIconRect.width() );
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h = itemTextRect.height() + itemIconRect.height() + 1;
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}
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itemRect.setWidth( w );
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itemRect.setHeight( h );
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int width = QMAX( w, TQApplication::globalStrut().width() ); // see TQIconViewItem::width()
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int height = QMAX( h, TQApplication::globalStrut().height() ); // see TQIconViewItem::height()
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itemTextRect = TQRect( ( width - itemTextRect.width() ) / 2, height - itemTextRect.height(),
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itemTextRect.width(), itemTextRect.height() );
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itemIconRect = TQRect( ( width - itemIconRect.width() ) / 2, y,
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itemIconRect.width(), itemIconRect.height() );
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}
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else {
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// If the pixmap size has been specified, use it
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if ( d && !d->m_pixmapSize.isNull() ) {
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h = QMAX( itemTextRect.height(), d->m_pixmapSize.height() + 2 );
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#if 0 // FIXME
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// Waiting for the qt bug to be solved, the pixmapRect must
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// stay on the top...
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y = ( d->m_pixmapSize.height() + 2 - itemIconRect.height() ) / 2;
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#endif
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}
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else {
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h = QMAX( itemTextRect.height(), itemIconRect.height() );
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}
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w = itemTextRect.width() + itemIconRect.width() + 1;
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itemRect.setWidth( w );
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itemRect.setHeight( h );
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int width = QMAX( w, TQApplication::globalStrut().width() ); // see TQIconViewItem::width()
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int height = QMAX( h, TQApplication::globalStrut().height() ); // see TQIconViewItem::height()
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itemTextRect = TQRect( width - itemTextRect.width(), ( height - itemTextRect.height() ) / 2,
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itemTextRect.width(), itemTextRect.height() );
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if ( itemIconRect.height() > itemTextRect.height() ) { // icon bigger than text -> center vertically
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itemIconRect = TQRect( 0, ( height - itemIconRect.height() ) / 2,
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itemIconRect.width(), itemIconRect.height() );
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}
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else { // icon smaller than text -> place in top or center with first line
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itemIconRect = TQRect( 0, QMAX(( fm->height() - itemIconRect.height() ) / 2 + y, 0),
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itemIconRect.width(), itemIconRect.height() );
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}
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if ( ( itemIconRect.height() <= 20 ) && ( itemTextRect.height() < itemIconRect.height() ) ) {
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d->realTextHeight = itemTextRect.height();
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itemTextRect.setY( itemIconRect.y() );
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itemTextRect.setHeight( itemIconRect.height() - 2 );
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}
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}
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if ( itemIconRect != pixmapRect() ) {
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setPixmapRect( itemIconRect );
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}
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if ( itemTextRect != textRect() ) {
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setTextRect( itemTextRect );
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}
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if ( itemRect != rect() ) {
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setItemRect( itemRect );
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}
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// Done by setPixmapRect, setTextRect and setItemRect ! [and useless if no rect changed]
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//view->updateItemContainer( this );
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}
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void TDEIconViewItem::paintItem( TQPainter *p, const TQColorGroup &cg )
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{
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TQIconView* view = iconView();
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Q_ASSERT( view );
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if ( !view )
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return;
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#ifndef NDEBUG // be faster for the end-user, such a bug will have been fixed before hand :)
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if ( !view->inherits("TDEIconView") )
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{
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kdWarning() << "TDEIconViewItem used in a " << view->className() << " !!" << endl;
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return;
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}
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#endif
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p->save();
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paintPixmap(p, cg);
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paintText(p, cg);
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p->restore();
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}
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KWordWrap * TDEIconViewItem::wordWrap()
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{
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return m_wordWrap;
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}
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void TDEIconViewItem::paintPixmap( TQPainter *p, const TQColorGroup &cg )
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{
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TDEIconView *kview = static_cast<TDEIconView *>(iconView());
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#ifndef QT_NO_PICTURE
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if ( picture() ) {
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TQPicture *pic = picture();
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if ( isSelected() ) {
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// TODO something as nice as selectedIconPixmap if possible ;)
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p->fillRect( pixmapRect( false ), TQBrush( cg.highlight(), TQBrush::Dense4Pattern) );
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}
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p->drawPicture( x()-pic->boundingRect().x(), y()-pic->boundingRect().y(), *pic );
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} else
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#endif
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{
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int iconX = pixmapRect( false ).x();
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int iconY = pixmapRect( false ).y();
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TQPixmap *pix = pixmap();
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if ( !pix || pix->isNull() )
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return;
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#if 1 // FIXME
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// Move the pixmap manually because the pixmapRect is at the
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// top of the itemRect
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// (won't be needed anymore in future versions of qt)
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if ( d && !d->m_pixmapSize.isNull() )
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{
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int offset = 0;
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if ( kview->itemTextPos() == TQIconView::Bottom )
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offset = d->m_pixmapSize.height() - pix->height();
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else
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offset = ( d->m_pixmapSize.height() - pix->height() ) / 2;
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if ( offset > 0 )
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iconY += offset;
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}
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#endif
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if ( isSelected() ) {
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TQPixmap selectedPix = kview->selectedIconPixmap( pix, cg.highlight() );
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p->drawPixmap( iconX, iconY, selectedPix );
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} else {
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p->drawPixmap( iconX, iconY, *pix );
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}
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}
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}
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void TDEIconViewItem::paintText( TQPainter *p, const TQColorGroup &cg )
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{
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bool drawRoundedRect = TDEGlobalSettings::iconUseRoundedRect();
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int textX;
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if (drawRoundedRect == true) {
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textX = textRect( false ).x() + 4;
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}
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else {
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textX = textRect( false ).x() + 2;
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}
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int textY;
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if ( d && (d->realTextHeight != -1) ) {
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textY = textRect( false ).y() + ((rect().height() - d->realTextHeight) / 2);
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}
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else {
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textY = textRect( false ).y();
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}
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if ( isSelected() ) {
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if (drawRoundedRect == true) {
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p->setBrush(TQBrush(cg.highlight()));
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p->setPen(TQPen(cg.highlight()));
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p->drawRoundRect( textRect( false ) ,1000/textRect(false).width(),1000/textRect(false).height() );
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}
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else {
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p->fillRect( textRect( false ), cg.highlight() );
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}
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p->setPen( TQPen( cg.highlightedText() ) );
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}
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else {
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if ( iconView()->itemTextBackground() != Qt::NoBrush ) {
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p->fillRect( textRect( false ), iconView()->itemTextBackground() );
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}
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p->setPen( cg.text() );
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}
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int align = iconView()->itemTextPos() == TQIconView::Bottom ? AlignHCenter : AlignAuto;
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m_wordWrap->drawText( p, textX, textY, align | KWordWrap::Truncate );
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}
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TQSize TDEIconViewItem::pixmapSize() const
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{
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return d ? d->m_pixmapSize : TQSize( 0, 0 );
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}
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void TDEIconViewItem::setPixmapSize( const TQSize& size )
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{
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if ( !d ) {
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d = new TDEIconViewItemPrivate;
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}
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d->m_pixmapSize = size;
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}
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void TDEIconView::virtual_hook( int, void* )
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{ /*BASE::virtual_hook( id, data );*/ }
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#include "kiconview.moc"
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