Added abandoned KDE3 version of K3B

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/k3b@1084400 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 203 insertions, 0 deletions

diff --git a/src/k3bwidgetshoweffect.cpp b/src/k3bwidgetshoweffect.cpp
new file mode 100644
index 0000000..1caa971
--- /dev/null
+++ b/src/k3bwidgetshoweffect.cpp
@@ -0,0 +1,203 @@
+/* 
+ *
+ * $Id: sourceheader 380067 2005-01-19 13:03:46Z trueg $
+ * Copyright (C) 2005 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * Based on the effects in popupMessage.cpp 
+ * Copyright (C) 2005 by Max Howell <max.howell@methylblue.com>
+ *               2005 by Seb Ruiz <me@sebruiz.net>
+ *
+ * Dissolve Mask (c) Kicker Authors kickertip.cpp, 2005/08/17
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#include "k3bwidgetshoweffect.h"
+
+#include <qpainter.h>
+#include <qwidget.h>
+
+
+K3bWidgetShowEffect::K3bWidgetShowEffect( QWidget* widget, Effect e )
+  : QObject( widget ),
+    m_effect( e ),
+    m_widget( widget ),
+    m_dissolveSize( 0 ),
+    m_dissolveDelta( -1 ),
+    m_offset( 0 ),
+    m_deleteSelf( false ),
+    m_bEffectOnly( false )
+{
+}
+
+
+K3bWidgetShowEffect::~K3bWidgetShowEffect()
+{
+}
+
+
+void K3bWidgetShowEffect::hide( bool effectOnly )
+{
+  m_bEffectOnly = effectOnly;
+  m_bShow = false;
+  m_offset = m_widget->height();
+  killTimer( m_timerId );
+  m_timerId = startTimer( 6 );
+}
+
+
+void K3bWidgetShowEffect::show( bool effectOnly )
+{
+  m_bShow = true;
+  m_offset = 0;
+  m_dissolveSize = 24;
+  m_dissolveDelta = -1;
+
+  m_widget->polish();
+
+  if( m_effect == Dissolve ) {
+    // necessary to create the mask
+    m_mask.resize( m_widget->width(), m_widget->height() );
+    // make the mask empty and hence will not show widget with show() called below
+    dissolveMask();
+    m_timerId = startTimer( 1000 / 30 );
+  }
+  else {
+    m_widget->move( 0, m_widget->parentWidget()->height() );
+    m_timerId = startTimer( 6 );
+  }
+  
+  if( !effectOnly )
+    m_widget->show();
+}
+
+
+void K3bWidgetShowEffect::timerEvent( QTimerEvent* )
+{
+  switch( m_effect ) {
+  case Slide:
+    slideMask();
+    break;
+    
+  case Dissolve:
+    dissolveMask();
+    break;
+  }
+}
+
+
+void K3bWidgetShowEffect::dissolveMask()
+{
+  if( m_bShow ) {
+    m_widget->repaint( false );
+    QPainter maskPainter(&m_mask);
+
+    m_mask.fill(Qt::black);
+
+    maskPainter.setBrush(Qt::white);
+    maskPainter.setPen(Qt::white);
+    maskPainter.drawRect( m_mask.rect() );
+    
+    m_dissolveSize += m_dissolveDelta;
+
+    if( m_dissolveSize > 0 ) {
+      maskPainter.setRasterOp( Qt::EraseROP );
+
+      int x, y, s;
+      const int size = 16;
+
+      for( y = 0; y < m_widget->height() + size; y += size ) {
+	x = m_widget->width();
+	s = m_dissolveSize * x / 128;
+
+	for( ; x > size; x -= size, s -= 2 ) {
+	  if( s < 0 )
+	    break;
+
+	  maskPainter.drawEllipse(x - s / 2, y - s / 2, s, s);
+	}
+      }
+    }
+    else if( m_dissolveSize < 0 ) {
+      m_dissolveDelta = 1;
+      killTimer( m_timerId );
+
+      emit widgetShown( m_widget );
+
+      if( m_deleteSelf )
+	deleteLater();
+    }
+
+    m_widget->setMask( m_mask );
+  }
+
+  else {
+    // just hide it for now
+    emit widgetHidden( m_widget );
+    if( !m_bEffectOnly )
+      m_widget->hide();
+
+    if( m_deleteSelf )
+      deleteLater();
+  }
+}
+
+
+void K3bWidgetShowEffect::slideMask()
+{
+  if( m_bShow ) {
+    m_widget->move( 0, m_widget->parentWidget()->height() - m_offset );
+    
+    m_offset++;
+    if( m_offset > m_widget->height() ) {
+      killTimer( m_timerId );
+
+      emit widgetShown( m_widget );
+      
+      if( m_deleteSelf )
+	deleteLater();
+    }
+  }
+  else {
+    m_offset--;
+    m_widget->move( 0, m_widget->parentWidget()->height() - m_offset );
+    
+    if( m_offset < 0 ) {
+      // finally hide the widget
+      emit widgetHidden( m_widget );
+      if( !m_bEffectOnly )
+	m_widget->hide();
+
+      if( m_deleteSelf )
+	deleteLater();
+    }
+  }
+}
+
+
+
+K3bWidgetShowEffect* K3bWidgetShowEffect::showWidget( QWidget* w, Effect m )
+{
+  K3bWidgetShowEffect* e = new K3bWidgetShowEffect( w, m );
+  e->m_deleteSelf = true;
+  e->show();
+  return e;
+}
+
+
+K3bWidgetShowEffect* K3bWidgetShowEffect::hideWidget( QWidget* w, Effect m )
+{
+  K3bWidgetShowEffect* e = new K3bWidgetShowEffect( w, m );
+  e->m_deleteSelf = true;
+  e->hide();
+  return e;
+}
+
+#include "k3bwidgetshoweffect.moc"