1 files changed, 120 insertions, 0 deletions
diff --git a/kmid/qslidertime.cpp b/kmid/qslidertime.cpp
new file mode 100644
index 00000000..be5fdab2
--- /dev/null
+++ b/kmid/qslidertime.cpp
@@ -0,0 +1,120 @@
+/**************************************************************************
+
+    kslidertime.cpp  - A widget that displays time tags under a KSlider 
+    Copyright (C) 1997,98  Antonio Larrosa Jimenez
+
+    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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+    Send comments and bug fixes to larrosa@kde.org
+    or to Antonio Larrosa, Rio Arnoya, 10 5B, 29006 Malaga, Spain
+
+***************************************************************************/
+#include "qslidertime.h"
+#include <qwidget.h>
+#include <qpainter.h>
+#include <stdio.h>
+
+#define ARROW_LENGTH    13 
+
+QSliderTime::QSliderTime( QSlider *ksl, QWidget *parent, const char *name)
+					: QWidget (parent,name)
+{
+kslider=ksl;
+
+QPainter painter;
+QFontMetrics qfmt(painter.font());
+fontheight=qfmt.height();
+
+}
+
+char *QSliderTime::formatMillisecs(int ms,char *tmp)
+{
+  if (ms<60000)
+      {
+      sprintf(tmp,"0:%02d",ms/1000);
+      }
+  else
+      sprintf(tmp,"%d:%02d",ms/60000,(ms%60000)/1000);
+return tmp;
+}
+
+void QSliderTime::paintEvent( QPaintEvent * )
+{
+  QPainter painter(this);
+
+//  erase();
+  drawTimeMarks(&painter);
+}
+
+int quantizeTimeStep(int t)
+{
+if (t<=2000) t=2000;
+  else if (t<=5000) t=5000;
+  else if (t<=10000) t=10000;
+  else if (t<=15000) t=15000;
+  else if (t<=30000) t=30000;
+  else if (t<=60000) t=60000;
+  else if (t<=120000) t=120000;
+return t;
+}
+
+void QSliderTime::drawTimeMarks(QPainter *painter)
+{
+if (kslider==NULL) return;
+  int i;
+  int maxV = kslider->maxValue();
+  QFontMetrics qfmt(painter->font());
+  fontheight=qfmt.height();
+  int ntimetags = width()/(qfmt.width("-88:88-"));
+  int timestep;
+  if (ntimetags>1) timestep = maxV/(ntimetags);
+    else timestep=maxV;
+  timestep = quantizeTimeStep(timestep);
+  ntimetags = maxV/timestep;
+ 
+ // draw time tags (only in horizontal !!)
+  int posy=qfmt.height();
+  char *tmp=new char[100];    
+  int pos=0;
+  int deltapos=0;
+  formatMillisecs(0,tmp);
+  painter->drawText( 0, posy,tmp);
+  for ( i = timestep; i <= maxV - timestep; i += timestep )
+     {
+     pos = (width()-10) * i / maxV + 5;
+     formatMillisecs(i,tmp);
+     deltapos=qfmt.width(tmp)/2;
+     painter->drawText( pos-deltapos, posy,tmp);
+     }
+
+  pos = width()- 5;
+  formatMillisecs(maxV,tmp);
+  deltapos=qfmt.width(tmp);
+    
+  painter->drawText( pos-deltapos, posy,tmp);
+    
+}  
+
+
+QSize QSliderTime::sizeHint()
+{
+  return QSize(10,fontheight+2);
+}
+
+QSizePolicy QSliderTime::sizePolicy()
+{
+  return QSizePolicy(QSizePolicy::Expanding,QSizePolicy::Fixed);
+}
+#include "qslidertime.moc"