1 files changed, 129 insertions, 0 deletions
diff --git a/kghostview/scrollbox.cpp b/kghostview/scrollbox.cpp
new file mode 100644
index 00000000..8be3ab61
--- /dev/null
+++ b/kghostview/scrollbox.cpp
@@ -0,0 +1,129 @@
+/** 
+ * Copyright (C) 1997-2002 the KGhostView authors. See file AUTHORS.
+ * 	
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <qdrawutil.h>
+#include <qpainter.h>
+#include <qpixmap.h>
+
+#include "scrollbox.h"
+
+ScrollBox::ScrollBox( QWidget* parent, const char* name )
+    : QFrame( parent, name )
+{
+    setFrameStyle( Panel | Sunken );
+}
+
+void ScrollBox::mousePressEvent( QMouseEvent* e )
+{
+    mouse = e->pos();
+    if( e->button() == RightButton )
+	emit button3Pressed();
+    if( e->button() == MidButton )
+	emit button2Pressed();
+}
+
+void ScrollBox::mouseMoveEvent( QMouseEvent* e )
+{
+    if( e->state() != LeftButton )
+	return;
+
+    int dx = ( e->pos().x() - mouse.x() ) * pagesize.width()  / width();
+    int dy = ( e->pos().y() - mouse.y() ) * pagesize.height() / height();
+
+    // Notify the word what the view position has changed
+    // The word in turn will notify as that view position has changed
+    // Even if coordinates are out of range QScrollView handles
+    // this properly
+    emit valueChanged( QPoint( viewpos.x() + dx, viewpos.y() + dy ) );
+    emit valueChangedRelative( dx, dy );
+
+    mouse = e->pos();
+}
+
+void ScrollBox::resizeEvent( QResizeEvent * )
+{
+    if ( paletteBackgroundPixmap() )
+	setPaletteBackgroundPixmap( paletteBackgroundPixmap()->convertToImage().smoothScale( size() ) );
+}
+
+void ScrollBox::drawContents( QPainter* paint )
+{
+    if ( pagesize.isEmpty() )
+	return;
+
+
+    /* FIXME:
+     *
+     * The logic below is flawed because the page info given to us
+     * contains the borders used for page decoration, while we assume
+     * that it means only the actual displayed document.
+     *
+     */
+
+    QRect c( contentsRect() );
+
+    paint -> setPen( Qt::red );
+
+    int len = pagesize.width();
+    int x = c.x() + c.width() * viewpos.x() / len;
+    int w = c.width() * viewsize.width() / len ;
+    if ( w > c.width() ) w = c.width();
+
+    len = pagesize.height();
+    int y = c.y() + c.height() * viewpos.y() / len;
+    int h = c.height() * viewsize.height() / len;
+    if ( h > c.height() ) h = c.height();
+
+    paint->drawRect( x, y, w, h );
+}
+
+void ScrollBox::setPageSize( const QSize& s )
+{
+    pagesize = s;
+    setFixedHeight( s.height() * width() / s.width() );
+    repaint();
+}
+
+void ScrollBox::setViewSize( const QSize& s )
+{
+    viewsize = s;
+    repaint();
+}
+
+void ScrollBox::setViewPos( const QPoint& pos )
+{
+    viewpos = pos;
+    repaint();
+}
+
+void ScrollBox::setThumbnail( QPixmap img )
+{
+    // The line below is needed to work around certain "features" of styles such as liquid
+    // see bug:61711 for more info (LPC, 20 Aug '03)
+    setBackgroundOrigin( QWidget::WidgetOrigin );
+    setPaletteBackgroundPixmap( img.convertToImage().smoothScale( size() ) );
+}
+
+void ScrollBox::clear()
+{
+    unsetPalette();
+}
+
+#include "scrollbox.moc"
+
+// vim:sw=4:sts=4:ts=8:noet