/**************************************************************************** ** ** Implementation of TQEffects functions ** ** Created : 000621 ** ** Copyright (C) 2005-2008 Trolltech ASA. All rights reserved. ** ** This file is part of the widgets module of the TQt GUI Toolkit. ** ** This file may be used under the terms of the GNU General ** Public License versions 2.0 or 3.0 as published by the Free ** Software Foundation and appearing in the files LICENSE.GPL2 ** and LICENSE.GPL3 included in the packaging of this file. ** Alternatively you may (at your option) use any later version ** of the GNU General Public License if such license has been ** publicly approved by Trolltech ASA (or its successors, if any) ** and the KDE Free TQt Foundation. ** ** Please review the following information to ensure GNU General ** Public Licensing requirements will be met: ** http://trolltech.com/products/qt/licenses/licensing/opensource/. ** If you are unsure which license is appropriate for your use, please ** review the following information: ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview ** or contact the sales department at sales@trolltech.com. ** ** This file may be used under the terms of the Q Public License as ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL ** included in the packaging of this file. Licensees holding valid TQt ** Commercial licenses may use this file in accordance with the TQt ** Commercial License Agreement provided with the Software. ** ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted ** herein. ** **********************************************************************/ #include "ntqapplication.h" #ifndef TQT_NO_EFFECTS #include "tqwidget.h" #include "tqeffects_p.h" #include "tqpixmap.h" #include "tqimage.h" #include "tqtimer.h" #include "tqdatetime.h" #include "tqguardedptr.h" #include "tqscrollview.h" /* Internal class to get access to protected TQWidget-members */ class TQAccessWidget : public TQWidget { friend class TQAlphaWidget; friend class TQRollEffect; public: TQAccessWidget( TQWidget* parent=0, const char* name=0, WFlags f = 0 ) : TQWidget( parent, name, f ) {} }; /* Internal class TQAlphaWidget. The TQAlphaWidget is shown while the animation lasts and displays the pixmap resulting from the alpha blending. */ class TQAlphaWidget: public TQWidget, private TQEffects { TQ_OBJECT public: TQAlphaWidget( TQWidget* w, WFlags f = 0 ); void run( int time ); protected: void paintEvent( TQPaintEvent* e ); void closeEvent( TQCloseEvent* ); bool eventFilter( TQObject* o, TQEvent* e ); void alphaBlend(); protected slots: void render(); private: TQPixmap pm; double alpha; TQImage back; TQImage front; TQImage mixed; TQGuardedPtr widget; int duration; int elapsed; bool showWidget; TQTimer anim; TQTime checkTime; }; static TQAlphaWidget* q_blend = 0; /* Constructs a TQAlphaWidget. */ TQAlphaWidget::TQAlphaWidget( TQWidget* w, WFlags f ) : TQWidget( TQApplication::desktop()->screen(TQApplication::desktop()->screenNumber(w)), "qt internal alpha effect widget", f ) { #if 1 //ndef TQ_WS_WIN setEnabled( FALSE ); #endif pm.setOptimization( TQPixmap::BestOptim ); setBackgroundMode( NoBackground ); widget = (TQAccessWidget*)w; alpha = 0; } /* \reimp */ void TQAlphaWidget::paintEvent( TQPaintEvent* ) { bitBlt( this, TQPoint(0,0), &pm ); } /* Starts the alphablending animation. The animation will take about \a time ms */ void TQAlphaWidget::run( int time ) { duration = time; if ( duration < 0 ) duration = 150; if ( !widget ) return; elapsed = 0; checkTime.start(); showWidget = TRUE; tqApp->installEventFilter( this ); widget->setWState( WState_Visible ); move( widget->geometry().x(),widget->geometry().y() ); resize( widget->size().width(), widget->size().height() ); front = TQImage( widget->size(), 32 ); front = TQPixmap::grabWidget( widget ); back = TQImage( widget->size(), 32 ); back = TQPixmap::grabWindow( TQApplication::desktop()->winId(), widget->geometry().x(), widget->geometry().y(), widget->geometry().width(), widget->geometry().height() ); if ( !back.isNull() && checkTime.elapsed() < duration / 2 ) { mixed = back.copy(); pm = mixed; show(); setEnabled(FALSE); connect( &anim, TQ_SIGNAL(timeout()), this, TQ_SLOT(render())); anim.start( 1 ); } else { duration = 0; render(); } } /* \reimp */ bool TQAlphaWidget::eventFilter( TQObject* o, TQEvent* e ) { switch ( e->type() ) { case TQEvent::Move: if ( o != widget ) break; move( widget->geometry().x(),widget->geometry().y() ); update(); break; case TQEvent::Hide: case TQEvent::Close: if ( o != widget ) break; case TQEvent::MouseButtonPress: #ifndef TQT_NO_SCROLLVIEW if ( ::tqt_cast(o) ) break; #endif case TQEvent::MouseButtonDblClick: setEnabled(TRUE); showWidget = FALSE; render(); break; case TQEvent::KeyPress: { TQKeyEvent *ke = (TQKeyEvent*)e; if ( ke->key() == Key_Escape ) showWidget = FALSE; else duration = 0; render(); break; } default: break; } return TQWidget::eventFilter( o, e ); } /* \reimp */ void TQAlphaWidget::closeEvent( TQCloseEvent *e ) { e->accept(); if ( !q_blend ) return; showWidget = FALSE; render(); TQWidget::closeEvent( e ); } /* Render alphablending for the time elapsed. Show the blended widget and free all allocated source if the blending is finished. */ void TQAlphaWidget::render() { int tempel = checkTime.elapsed(); if ( elapsed >= tempel ) elapsed++; else elapsed = tempel; if ( duration != 0 ) alpha = tempel / double(duration); else alpha = 1; if ( alpha >= 1 || !showWidget) { anim.stop(); tqApp->removeEventFilter( this ); if ( widget ) { if ( !showWidget ) { #ifdef TQ_WS_WIN setEnabled(TRUE); setFocus(); #endif widget->hide(); widget->setWState( WState_ForceHide ); widget->clearWState( WState_Visible ); } else if ( duration ) { BackgroundMode bgm = widget->backgroundMode(); TQColor erc = widget->eraseColor(); const TQPixmap *erp = widget->erasePixmap(); widget->clearWState( WState_Visible ); widget->setBackgroundMode( NoBackground ); widget->show(); if ( bgm != FixedColor && bgm != FixedPixmap ) { widget->clearWState( WState_Visible ); // prevent update in setBackgroundMode widget->setBackgroundMode( bgm ); widget->setWState( WState_Visible ); } if ( erc.isValid() ) { widget->setEraseColor( erc ); } else if ( erp ) { widget->setErasePixmap( *erp ); } } else { widget->clearWState( WState_Visible ); widget->show(); } } q_blend = 0; deleteLater(); } else { if (widget) widget->clearWState( WState_ForceHide ); alphaBlend(); pm = mixed; repaint( FALSE ); } } /* Calculate an alphablended image. */ void TQAlphaWidget::alphaBlend() { const double ia = 1-alpha; const int sw = front.width(); const int sh = front.height(); switch( front.depth() ) { case 32: { TQ_UINT32** md = (TQ_UINT32**)mixed.jumpTable(); TQ_UINT32** bd = (TQ_UINT32**)back.jumpTable(); TQ_UINT32** fd = (TQ_UINT32**)front.jumpTable(); for (int sy = 0; sy < sh; sy++ ) { TQ_UINT32* bl = ((TQ_UINT32*)bd[sy]); TQ_UINT32* fl = ((TQ_UINT32*)fd[sy]); for (int sx = 0; sx < sw; sx++ ) { TQ_UINT32 bp = bl[sx]; TQ_UINT32 fp = fl[sx]; ((TQ_UINT32*)(md[sy]))[sx] = tqRgb(int (tqRed(bp)*ia + tqRed(fp)*alpha), int (tqGreen(bp)*ia + tqGreen(fp)*alpha), int (tqBlue(bp)*ia + tqBlue(fp)*alpha) ); } } } default: break; } } /* Internal class TQRollEffect The TQRollEffect widget is shown while the animation lasts and displays a scrolling pixmap. */ class TQRollEffect : public TQWidget, private TQEffects { TQ_OBJECT public: TQRollEffect( TQWidget* w, WFlags f, DirFlags orient ); void run( int time ); protected: void paintEvent( TQPaintEvent* ); bool eventFilter( TQObject*, TQEvent* ); void closeEvent( TQCloseEvent* ); private slots: void scroll(); private: TQGuardedPtr widget; int currentHeight; int currentWidth; int totalHeight; int totalWidth; int duration; int elapsed; bool done; bool showWidget; int orientation; TQTimer anim; TQTime checkTime; TQPixmap pm; }; static TQRollEffect* q_roll = 0; /* Construct a TQRollEffect widget. */ TQRollEffect::TQRollEffect( TQWidget* w, WFlags f, DirFlags orient ) : TQWidget( TQApplication::desktop()->screen(TQApplication::desktop()->screenNumber(w)), "qt internal roll effect widget", f ), orientation(orient) { #if 1 //ndef TQ_WS_WIN setEnabled( FALSE ); #endif widget = (TQAccessWidget*) w; Q_ASSERT( widget ); setBackgroundMode( NoBackground ); if ( widget->testWState( WState_Resized ) ) { totalWidth = widget->width(); totalHeight = widget->height(); } else { totalWidth = widget->sizeHint().width(); totalHeight = widget->sizeHint().height(); } currentHeight = totalHeight; currentWidth = totalWidth; if ( orientation & (RightScroll|LeftScroll) ) currentWidth = 0; if ( orientation & (DownScroll|UpScroll) ) currentHeight = 0; pm.setOptimization( TQPixmap::BestOptim ); pm = TQPixmap::grabWidget( widget ); } /* \reimp */ void TQRollEffect::paintEvent( TQPaintEvent* ) { int x = orientation & RightScroll ? TQMIN(0, currentWidth - totalWidth) : 0; int y = orientation & DownScroll ? TQMIN(0, currentHeight - totalHeight) : 0; bitBlt( this, x, y, &pm, 0, 0, pm.width(), pm.height(), CopyROP, TRUE ); } /* \reimp */ bool TQRollEffect::eventFilter( TQObject* o, TQEvent* e ) { switch ( e->type() ) { case TQEvent::Move: if ( o != widget ) break; move( widget->geometry().x(),widget->geometry().y() ); update(); break; case TQEvent::Hide: case TQEvent::Close: if ( o != widget || done ) break; setEnabled(TRUE); showWidget = FALSE; done = TRUE; scroll(); break; case TQEvent::MouseButtonPress: #ifndef TQT_NO_SCROLLVIEW if ( ::tqt_cast(o) ) break; #endif case TQEvent::MouseButtonDblClick: if ( done ) break; setEnabled(TRUE); showWidget = FALSE; done = TRUE; scroll(); break; case TQEvent::KeyPress: { TQKeyEvent *ke = (TQKeyEvent*)e; if ( ke->key() == Key_Escape ) showWidget = FALSE; done = TRUE; scroll(); break; } default: break; } return TQWidget::eventFilter( o, e ); } /* \reimp */ void TQRollEffect::closeEvent( TQCloseEvent *e ) { e->accept(); if ( done ) return; showWidget = FALSE; done = TRUE; scroll(); TQWidget::closeEvent( e ); } /* Start the animation. The animation will take about \a time ms, or is calculated if \a time is negative */ void TQRollEffect::run( int time ) { if ( !widget ) return; duration = time; elapsed = 0; if ( duration < 0 ) { int dist = 0; if ( orientation & (RightScroll|LeftScroll) ) dist += totalWidth - currentWidth; if ( orientation & (DownScroll|UpScroll) ) dist += totalHeight - currentHeight; duration = TQMIN( TQMAX( dist/3, 50 ), 120 ); } connect( &anim, TQ_SIGNAL(timeout()), this, TQ_SLOT(scroll())); widget->setWState( WState_Visible ); move( widget->geometry().x(),widget->geometry().y() ); resize( TQMIN( currentWidth, totalWidth ), TQMIN( currentHeight, totalHeight ) ); show(); setEnabled(FALSE); tqApp->installEventFilter( this ); showWidget = TRUE; done = FALSE; anim.start( 1 ); checkTime.start(); } /* Roll according to the time elapsed. */ void TQRollEffect::scroll() { if ( !done && widget) { widget->clearWState( WState_ForceHide ); int tempel = checkTime.elapsed(); if ( elapsed >= tempel ) elapsed++; else elapsed = tempel; if ( currentWidth != totalWidth ) { currentWidth = totalWidth * (elapsed/duration) + ( 2 * totalWidth * (elapsed%duration) + duration ) / ( 2 * duration ); // equiv. to int( (totalWidth*elapsed) / duration + 0.5 ) done = (currentWidth >= totalWidth); } if ( currentHeight != totalHeight ) { currentHeight = totalHeight * (elapsed/duration) + ( 2 * totalHeight * (elapsed%duration) + duration ) / ( 2 * duration ); // equiv. to int( (totalHeight*elapsed) / duration + 0.5 ) done = (currentHeight >= totalHeight); } done = ( currentHeight >= totalHeight ) && ( currentWidth >= totalWidth ); int w = totalWidth; int h = totalHeight; int x = widget->geometry().x(); int y = widget->geometry().y(); if ( orientation & RightScroll || orientation & LeftScroll ) w = TQMIN( currentWidth, totalWidth ); if ( orientation & DownScroll || orientation & UpScroll ) h = TQMIN( currentHeight, totalHeight ); setUpdatesEnabled( FALSE ); if ( orientation & UpScroll ) y = widget->geometry().y() + TQMAX( 0, totalHeight - currentHeight ); if ( orientation & LeftScroll ) x = widget->geometry().x() + TQMAX( 0, totalWidth - currentWidth ); if ( orientation & UpScroll || orientation & LeftScroll ) move( x, y ); resize( w, h ); setUpdatesEnabled( TRUE ); repaint( FALSE ); } if ( done ) { anim.stop(); tqApp->removeEventFilter( this ); if ( widget ) { if ( !showWidget ) { #ifdef TQ_WS_WIN setEnabled(TRUE); setFocus(); #endif widget->hide(); widget->setWState( WState_ForceHide ); widget->clearWState( WState_Visible ); } else { BackgroundMode bgm = widget->backgroundMode(); TQColor erc = widget->eraseColor(); const TQPixmap *erp = widget->erasePixmap(); widget->clearWState( WState_Visible ); widget->setBackgroundMode( NoBackground ); widget->show(); if ( bgm != FixedColor && bgm != FixedPixmap ) { widget->clearWState( WState_Visible ); // prevent update in setBackgroundMode widget->setBackgroundMode( bgm ); widget->setWState( WState_Visible ); } if ( erc.isValid() ) { widget->setEraseColor( erc ); } else if ( erp ) { widget->setErasePixmap( *erp ); } } } q_roll = 0; deleteLater(); } } /* Delete this after timeout */ #include "tqeffects.moc" /*! Scroll widget \a w in \a time ms. \a orient may be 1 (vertical), 2 (horizontal) or 3 (diagonal). */ void qScrollEffect( TQWidget* w, TQEffects::DirFlags orient, int time ) { if ( q_roll ) { delete q_roll; q_roll = 0; } tqApp->sendPostedEvents( w, TQEvent::Move ); tqApp->sendPostedEvents( w, TQEvent::Resize ); #ifdef TQ_WS_X11 uint flags = TQt::WStyle_Customize | TQt::WNoAutoErase | TQt::WStyle_StaysOnTop | (w->isPopup() ? TQt::WType_Popup : (TQt::WX11BypassWM | TQt::WStyle_Tool)); #else uint flags = TQt::WStyle_Customize | TQt::WType_Popup | TQt::WX11BypassWM | TQt::WNoAutoErase | TQt::WStyle_StaysOnTop; #endif // those can popups - they would steal the focus, but are disabled q_roll = new TQRollEffect( w, flags, orient ); q_roll->run( time ); } /*! Fade in widget \a w in \a time ms. */ void qFadeEffect( TQWidget* w, int time ) { if ( q_blend ) { delete q_blend; q_blend = 0; } tqApp->sendPostedEvents( w, TQEvent::Move ); tqApp->sendPostedEvents( w, TQEvent::Resize ); #ifdef TQ_WS_X11 uint flags = TQt::WStyle_Customize | TQt::WNoAutoErase | TQt::WStyle_StaysOnTop | (w->isPopup() ? TQt::WType_Popup : (TQt::WX11BypassWM | TQt::WStyle_Tool)); #else uint flags = TQt::WStyle_Customize | TQt::WType_Popup | TQt::WX11BypassWM | TQt::WNoAutoErase | TQt::WStyle_StaysOnTop; #endif // those can popups - they would steal the focus, but are disabled q_blend = new TQAlphaWidget( w, flags ); q_blend->run( time ); } #endif //TQT_NO_EFFECTS