Anti-aliasing version!!!

1 files changed, 34 insertions, 3 deletions

diff --git a/noncore/graphics/drawpad/ellipsetool.cpp b/noncore/graphics/drawpad/ellipsetool.cpp
index c3badc3..733bade 100644
--- a/noncore/graphics/drawpad/ellipsetool.cpp
+++ b/noncore/graphics/drawpad/ellipsetool.cpp
@@ -7,39 +7,70 @@
  *   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.                                   *
  *                                                                         *
  ***************************************************************************/
 
 #include "ellipsetool.h"
 
 #include "drawpad.h"
 #include "drawpadcanvas.h"
 
-#include <qpainter.h>
+#include <qimage.h>
 #include <qpixmap.h>
 
 EllipseTool::EllipseTool(DrawPad* drawPad, DrawPadCanvas* drawPadCanvas)
     : ShapeTool(drawPad, drawPadCanvas)
 {
 }
 
 EllipseTool::~EllipseTool()
 {
 }
 
 void EllipseTool::drawFinalShape(QPainter& p)
 {
     p.setRasterOp(Qt::NotROP);
     p.drawRect(QRect(m_polyline[2], m_polyline[0]));
-    p.setPen(m_pDrawPad->pen());
+
+    QRect r = m_polyline.boundingRect();
+    r = r.normalize();
+    r.setLeft(r.left() - m_pDrawPad->pen().width());
+    r.setTop(r.top() - m_pDrawPad->pen().width());
+    r.setRight(r.right() + m_pDrawPad->pen().width());
+    r.setBottom(r.bottom() + m_pDrawPad->pen().width());
+
+    QPixmap areaPixmap(r.width(), r.height());
+    bitBlt(&areaPixmap, QPoint(0, 0), p.device(), r);
+
+    QImage areaImage = areaPixmap.convertToImage();
+    QImage bigAreaImage = areaImage.smoothScale(areaImage.width() * 3, areaImage.height() * 3);
+
+    QPixmap bigAreaPixmap;
+    bigAreaPixmap.convertFromImage(bigAreaImage);
+
+    QPen bigAreaPen = m_pDrawPad->pen();
+    bigAreaPen.setWidth(bigAreaPen.width() * 3);
+
+    QPainter bigAreaPainter;
+    bigAreaPainter.begin(&bigAreaPixmap);
+    bigAreaPainter.setPen(bigAreaPen);
+    bigAreaPainter.drawEllipse(QRect(bigAreaPen.width() + 1, bigAreaPen.width() + 1,
+                                     bigAreaPixmap.width() - 2 * (bigAreaPen.width() + 1),
+                                     bigAreaPixmap.height() - 2 * (bigAreaPen.width() + 1)));
+    bigAreaPainter.end();
+
+    bigAreaImage = bigAreaPixmap.convertToImage();
+    areaImage = bigAreaImage.smoothScale(bigAreaImage.width() / 3, bigAreaImage.height() / 3);
+    areaPixmap.convertFromImage(areaImage);
+
     p.setRasterOp(Qt::CopyROP);
-    p.drawEllipse(QRect(m_polyline[2], m_polyline[0]));
+    p.drawPixmap(r.x(), r.y(), areaPixmap);
 }
 
 void EllipseTool::drawTemporaryShape(QPainter& p)
 {
     p.setRasterOp(Qt::NotROP);
     p.drawRect(QRect(m_polyline[2], m_polyline[1]));
     p.drawRect(QRect(m_polyline[2], m_polyline[0]));
 }