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List:       kde-commits
Subject:    koffice/kexi/plugins/reportspgz/backend/wrtembed
From:       Adam Pigg <adam () piggz ! co ! uk>
Date:       2009-03-13 22:53:19
Message-ID: 1236984799.877160.30388.nullmailer () svn ! kde ! org
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SVN commit 939148 by piggz:

Make the grid drawing a LOT faster :)

 M  +14 -6     reportscene.cpp  


--- trunk/koffice/kexi/plugins/reportspgz/backend/wrtembed/reportscene.cpp \
#939147:939148 @@ -69,7 +69,7 @@
 {
     //Draw the default background colour
     QGraphicsScene::drawBackground(painter, clip);
-    painter->setRenderHint(QPainter::Antialiasing, true);
+    painter->setRenderHint(QPainter::Antialiasing, false);
 
     if (_rd->propertySet()->property("ShowGrid").value().toBool()) {
         if (KoUnit::unitName(u) != KoUnit::unitName(_rd->pageUnit())) {
@@ -97,21 +97,29 @@
 
         //kDebug() << "dpix" << KoGlobal::dpiX() << "dpiy" << KoGlobal::dpiY() << \
"mayorx:" << majorx << "majory" << majory << "pix:" << pixel_incrementx << "piy:" << \
pixel_incrementy;  
+        QVector<QLine> lines;
+        QVector<QPoint> points;
+        
         if (pixel_incrementx > 2) { // do not bother painting points if increments \
are so small  int wpoints = qRound(sceneRect().width() / pixel_incrementx);
             int hpoints = qRound(sceneRect().height() / pixel_incrementy);
             for (int i = 0; i < wpoints; ++i) {
                 for (int j = 0; j < hpoints; ++j) {
-                    if (clip.contains(i * pixel_incrementx, j * pixel_incrementy)){
+                    //if (clip.contains(i * pixel_incrementx, j * \
pixel_incrementy)){  if (i % minor == 0 && j % minor == 0) {
-                            painter->drawLine(QPointF(i * pixel_incrementx, j * \
                pixel_incrementy), QPointF(i * pixel_incrementx, j * pixel_incrementy \
                + majorx));
-                            painter->drawLine(QPointF(i * pixel_incrementx, j * \
pixel_incrementy), QPointF(i * pixel_incrementx + majory, j * pixel_incrementy)); +   \
lines << QLine(QPoint(i * pixel_incrementx, j * pixel_incrementy), QPoint(i * \
pixel_incrementx, j * pixel_incrementy  + majorx)); +                            \
//painter->drawLine(); +                            lines << QLine(QPoint(i * \
pixel_incrementx, j * pixel_incrementy), QPoint(i * pixel_incrementx + majory, j * \
pixel_incrementy)); +                            //painter->drawLine();
                         } else {
-                            painter->drawPoint(QPointF(i * pixel_incrementx, j * \
pixel_incrementy)); +                            points << QPoint(i * \
pixel_incrementx, j * pixel_incrementy); +                            \
//painter->drawPoint();  }
-                    }
+                    //}
                 }
             }
+            painter->drawPoints(points);
+            painter->drawLines(lines);
 
         }
 


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