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# kanimwidget.cpp

    00001 // -*- c-basic-offset: 2 -*-
    00002
    00003 /* This file is part of the KDE libraries
    00004    Copyright (C) 2000 Kurt Granroth <granroth@kde.org>
    00005
    00006    This library is free software; you can redistribute it and/or
    00007    modify it under the terms of the GNU Library General Public
    00008    License version 2 as published by the Free Software Foundation.
    00009
    00010    This library is distributed in the hope that it will be useful,
    00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    00013    Library General Public License for more details.
    00014
    00015    You should have received a copy of the GNU Library General Public License
    00016    along with this library; see the file COPYING.LIB.  If not, write to
    00017    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    00018    Boston, MA 02111-1307, USA.
    00019 */
    00020 #include <kanimwidget.h>
    00021 #include <qpixmap.h>
    00022 #include <qtimer.h>
    00023 #include <qpainter.h>
    00024 #include <qimage.h>
    00025 #include <ktoolbar.h>
    00026 #include <kdebug.h>
    00027 #include <kiconloader.h>
    00028
    00029 class KAnimWidgetPrivate
    00030 {
    00031 public:
    00032   bool                   loadingCompleted : 1;
    00033   bool                   initDone         : 1;
    00034   int                    frames;
    00035   int                    current_frame;
    00036   QPixmap                pixmap;
    00037   QTimer                 timer;
    00038   QString                icon_name;
    00039   int                    size;
    00040 };
    00041
    00042 KAnimWidget::KAnimWidget( const QString& icons, int size, QWidget *parent,
    00043                           const char *name )
    00044   : QFrame( parent, name ),
    00045     d( new KAnimWidgetPrivate )
    00046 {
    00047   connect( &d->timer, SIGNAL(timeout()), this, SLOT(slotTimerUpdate()));
    00048
    00049   if (parent->inherits( "KToolBar" ))
    00050     connect(parent, SIGNAL(modechange()), this, SLOT(updateIcons()));
    00051
    00052   d->loadingCompleted = false;
    00053   d->size = size;
    00054   d->initDone = false;
    00055   setIcons( icons );
    00056   setFrameStyle( StyledPanel | Sunken );
    00057 }
    00058
    00059 KAnimWidget::~KAnimWidget()
    00060 {
    00061   d->timer.stop();
    00062
    00063   delete d; d = 0;
    00064 }
    00065
    00066 void KAnimWidget::start()
    00067 {
    00068   d->current_frame = 0;
    00069   d->timer.start( 50 );
    00070 }
    00071
    00072 void KAnimWidget::stop()
    00073 {
    00074   d->current_frame = 0;
    00075   d->timer.stop();
    00076   repaint();
    00077 }
    00078
    00079 void KAnimWidget::setSize( int size )
    00080 {
    00081   if ( d->size == size )
    00082     return;
    00083
    00084   d->size = size;
    00085   updateIcons();
    00086 }
    00087
    00088 void KAnimWidget::setIcons( const QString& icons )
    00089 {
    00090   if ( d->icon_name == icons )
    00091     return;
    00092
    00093   d->icon_name = icons;
    00094   updateIcons();
    00095 }
    00096
    00097 void KAnimWidget::showEvent(QShowEvent* e)
    00098 {
    00099   if (!d->initDone)
    00100   {
    00101      d->initDone = true;
    00102      updateIcons();
    00103   }
    00104   QFrame::showEvent(e);
    00105 }
    00106
    00107 void KAnimWidget::hideEvent(QHideEvent* e)
    00108 {
    00109   QFrame::hideEvent(e);
    00110 }
    00111
    00112 void KAnimWidget::enterEvent( QEvent *e )
    00113 {
    00114   setFrameStyle( WinPanel | Raised );
    00115
    00116   QFrame::enterEvent( e );
    00117 }
    00118
    00119 void KAnimWidget::leaveEvent( QEvent *e )
    00120 {
    00121   setFrameStyle( StyledPanel | Sunken );
    00122
    00123   QFrame::enterEvent( e );
    00124 }
    00125
    00126 void KAnimWidget::mousePressEvent( QMouseEvent *e )
    00127 {
    00128   QFrame::mousePressEvent( e );
    00129 }
    00130
    00131 void KAnimWidget::mouseReleaseEvent( QMouseEvent *e )
    00132 {
    00133   if ( e->button() == LeftButton &&
    00134        rect().contains( e->pos() ) )
    00135     emit clicked();
    00136
    00137   QFrame::mouseReleaseEvent( e );
    00138 }
    00139
    00140 void KAnimWidget::slotTimerUpdate()
    00141 {
    00142   if(!isVisible())
    00143     return;
    00144
    00145   d->current_frame++;
    00146   if (d->current_frame == d->frames)
    00147      d->current_frame = 0;
    00148
    00149   repaint(false);
    00150 }
    00151
    00152 void KAnimWidget::drawContents( QPainter *p )
    00153 {
    00154   if ( d->pixmap.isNull() )
    00155     return;
    00156
    00157   int w = d->pixmap.width();
    00158   int h = w;
    00159   int x = (width()  - w) / 2;
    00160   int y = (height() - h) / 2;
    00161   p->drawPixmap(QPoint(x, y), d->pixmap, QRect(0, d->current_frame*h, w, h));
    00162 }
    00163
    00164 void KAnimWidget::updateIcons()
    00165 {
    00166   if (!d->initDone)
    00167      return;
    00168
    00169   if (parent()->inherits( "KToolBar" ))
    00170     d->size = ((KToolBar*)parent())->iconSize();
    00171   if (!d->size)
    00172      d->size = KGlobal::iconLoader()->currentSize(KIcon::MainToolbar);
    00173
    00174   QString path = KGlobal::iconLoader()->iconPath(d->icon_name, -d->size);
    00175   QImage img(path);
    00176
    00177   if (img.isNull())
    00178      return;
    00179
    00180   d->current_frame = 0;
    00181   d->frames = img.height() / img.width();
    00182   if (d->pixmap.width() != d->size)
    00183   {
    00184      img = img.smoothScale(d->size, d->size*d->frames);
    00185   }
    00186   d->pixmap = img;
    00187
    00188   setFixedSize( d->size+2, d->size+2 );
    00189   resize( d->size+2, d->size+2 );
    00190 }
    00191
    00192 void KAnimWidget::virtual_hook( int, void* )
    00193 { /*BASE::virtual_hook( id, data );*/ }
    00194
    00195 #include "kanimwidget.moc"

This file is part of the documentation for kdelibs Version 3.1.5.
Documentation copyright © 1996-2002 the KDE developers.
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