Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 134 insertions, 0 deletions

diff --git a/kviewshell/sizePreview.cpp b/kviewshell/sizePreview.cpp
new file mode 100644
index 00000000..e6d56715
--- /dev/null
+++ b/kviewshell/sizePreview.cpp
@@ -0,0 +1,134 @@
+// SizePreview.cpp
+//
+// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
+//
+// (C) 2002 Stefan Kebekus
+// Distributed under the GPL
+
+// Add header files alphabetically
+
+#include <config.h>
+
+#include <kdebug.h>
+#include <krandomsequence.h>
+#include <qevent.h>
+#include <qpainter.h>
+
+#include "sizePreview.h"
+
+#include "simplePageSize.h"
+
+SizePreview::SizePreview( QWidget *parent, const char *name, WFlags)
+    : QWidget( parent, name, WStaticContents | WNoAutoErase )
+{
+  // Set a sane default
+  _width = _height = 50.0;
+  orientation = 0; // Portrait
+}
+
+void SizePreview::setSize(const SimplePageSize& size)
+{
+  _width = size.width().getLength_in_mm();
+  _height = size.height().getLength_in_mm();
+
+  if (_width < 50.0)
+    _width = 50.0;
+  if (_width > 1200.0)
+    _width = 1200.0;
+
+  if (_height < 50.0)
+    _height = 50.0;
+  if (_height > 1200.0)
+    _height = 1200.0;
+
+  update();
+}
+
+void SizePreview::resizeEvent(QResizeEvent*)
+{
+  update();
+}
+
+void SizePreview::paintEvent( QPaintEvent * )
+{
+  int displayedWidth, displayedHeight;
+
+  // Figure the width and height of the displayed page. Tricky.
+  if (orientation == 0) {
+    displayedWidth  = (int)(height() * (_width/_height) + 0.5);
+    displayedHeight = (int)(width() * (_height/_width) + 0.5);
+  } else {
+    displayedHeight  = (int)(height() * (_width/_height) + 0.5);
+    displayedWidth = (int)(width() * (_height/_width) + 0.5);
+  }
+  if (displayedWidth <= width()) 
+    displayedHeight = height();
+  else
+    displayedWidth = width();
+
+  int hOffset = (width()-displayedWidth)/2;
+  int vOffset = (height()-displayedHeight)/2;
+
+
+  // Now draw the graphics
+  pixmap.resize(width(), height());
+
+  QPainter p(&pixmap);
+  p.fillRect(rect(), colorGroup().background());
+  p.setPen(Qt::black);
+  p.setBrush(Qt::white);
+  p.drawRect(hOffset, vOffset, displayedWidth, displayedHeight);
+
+  // mark the textbox; we assume 25mm margin
+  int margin = (int)(25.0*displayedWidth/_width + 0.5);
+  QRect textBox(hOffset+margin, vOffset+margin, displayedWidth-2*margin, displayedHeight-2*margin);
+  p.setPen(Qt::lightGray);
+  p.drawRect(textBox);
+
+  // Draw some dummy "text", represented by black lines
+  int lineSpacing    = (int)(7.0*displayedWidth/_width + 0.5); // equiv. 7 mm
+  if (lineSpacing <= 3)
+    lineSpacing = 3;
+  int interWordSpace = (int)(4.0*displayedWidth/_width + 0.5); // equiv. 4 mm
+  if (interWordSpace <= 1)
+    interWordSpace = 2;
+
+  KRandomSequence rnd(1); // to generate word widths
+
+  p.setClipRect(textBox);
+  p.setPen(Qt::black);
+  int count = 1; // Counts lines
+  for (int y = vOffset+margin+lineSpacing; y <= vOffset+displayedHeight-margin; y += lineSpacing) {
+    // We start each line with its own seed.
+    // This means that the random sequence for each line is always the same, and this
+    // results in a more steady picture when the widget is resized.
+    rnd.setSeed(count);
+
+    // Every 10th line the end of a paragraph
+    int endParagraph;
+    if (count++ % 10 == 0)
+      endParagraph = (int)(50.0*displayedWidth/_width + 0.5);
+    else
+      endParagraph = 0;
+    for(int x = hOffset+margin; x <= hOffset+displayedWidth-margin-endParagraph; ) {
+      double wordWidthMM = rnd.getDouble()*30.0+10.0;
+      int wordWidth = (int)(wordWidthMM*displayedWidth/_width + 0.5); 
+      p.drawLine(x, y, x+wordWidth, y);
+      x += wordWidth+interWordSpace+1;
+    }
+  }
+
+  p.end();
+
+  // Copy the pixmap onto the widget
+  bitBlt(this, rect().topLeft(), &pixmap, rect(), CopyROP);
+  return;
+}
+
+void SizePreview::setOrientation(int ori)
+{
+  orientation = ori;
+  update();
+}
+
+#include "sizePreview.moc"