Use QImage for map and QPicture for composer

qgis · Jun 25, 2011 · e112204 · e112204
1 parent aa2ad45
commit e112204
Show file tree

Hide file tree

Showing 3 changed files with 56 additions and 8 deletions.
diff --git a/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp b/src/core/symbology-ng/qgsmarkersymbollayerv2.cpp
@@ -534,12 +534,18 @@ void QgsSvgMarkerSymbolLayerV2::renderPoint( const QPointF& point, QgsSymbolV2Re
   if ( mAngle != 0 )
     p->rotate( mAngle );
 
-  const QPicture& pct = QgsSvgCache::instance()->svgAsPicture( mPath, mSize, QColor( Qt::black )/*const QColor& fill*/, QColor( Qt::black ) /*const QColor& outline*/,
-                                                        1.0 /*outline width*/, context.renderContext().scaleFactor(), context.renderContext().rasterScaleFactor() );
-  p->drawPicture( 0, 0, pct );
-
-  /*QPicture &pct = context.selected() ? mSelPicture : mPicture;
-  p->drawPicture( 0, 0, pct );*/
+  if( doubleNear( context.renderContext().rasterScaleFactor(), 1.0 ) )
+  {
+    const QImage& img = QgsSvgCache::instance()->svgAsImage( mPath, mSize, QColor( Qt::black )/*const QColor& fill*/, QColor( Qt::black ) /*const QColor& outline*/,
+                        1.0 /*outline width*/, context.renderContext().scaleFactor(), context.renderContext().rasterScaleFactor() );
+    p->drawImage( -img.width() / 2.0, -img.width() / 2.0, img );
+  }
+  else
+  {
+    const QPicture& pct = QgsSvgCache::instance()->svgAsPicture( mPath, mSize, QColor( Qt::black )/*const QColor& fill*/, QColor( Qt::black ) /*const QColor& outline*/,
+                          1.0 /*outline width*/, context.renderContext().scaleFactor(), context.renderContext().rasterScaleFactor() );
+    p->drawPicture( 0, 0, pct );
+  }
 
   p->restore();
 }

diff --git a/src/core/symbology-ng/qgssvgcache.cpp b/src/core/symbology-ng/qgssvgcache.cpp
@@ -17,6 +17,7 @@
 
 #include "qgssvgcache.h"
 #include <QDomDocument>
+#include <QDomElement>
 #include <QFile>
 #include <QImage>
 #include <QPainter>
@@ -145,7 +146,9 @@ void QgsSvgCache::replaceParamsAndCacheSvg( QgsSvgCacheEntry* entry )
     return;
   }
 
-  //todo: replace params here
+  //replace fill color, outline color, outline with in all nodes
+  QDomElement docElem = svgDoc.documentElement();
+  replaceElemParams( docElem, entry->fill, entry->outline, entry->outlineWidth );
 
   entry->svgContent = svgDoc.toByteArray();
 }
@@ -164,7 +167,6 @@ void QgsSvgCache::cacheImage( QgsSvgCacheEntry* entry )
   QImage* image = new QImage( imageSize, imageSize, QImage::Format_ARGB32_Premultiplied );
   image->fill( 0 ); // transparent background
 
-  //rasterise byte array to image
   QPainter p( image );
   QSvgRenderer r( entry->svgContent );
   r.render( &p );
@@ -224,3 +226,40 @@ QgsSvgCacheEntry* QgsSvgCache::cacheEntry( const QString& file, double size, con
   return currentEntry;
 }
 
+void QgsSvgCache::replaceElemParams( QDomElement& elem, const QColor& fill, const QColor& outline, double outlineWidth )
+{
+  if( elem.isNull() )
+  {
+    return;
+  }
+
+  //go through attributes
+  QDomNamedNodeMap attributes = elem.attributes();
+  int nAttributes = attributes.count();
+  for( int i = 0; i < nAttributes; ++i )
+  {
+    QDomAttr attribute = attributes.item( i ).toAttr();
+    QString value = attribute.value();
+    if( value.startsWith("params(fill)") )
+    {
+      elem.setAttribute( attribute.name(), fill.name() );
+    }
+    else if( value.startsWith("params(outline)") )
+    {
+      elem.setAttribute( attribute.name(), outline.name() );
+    }
+    else if( value.startsWith("params(outline-width)") )
+    {
+      elem.setAttribute( attribute.name(), QString::number( outlineWidth ) );
+    }
+  }
+
+  QDomNodeList childList = elem.childNodes();
+  int nChildren = childList.count();
+  for( int i = 0; i < nChildren; ++i )
+  {
+    QDomElement childElem = childList.at( i ).toElement();
+    replaceElemParams( childElem, fill, outline, outlineWidth );
+  }
+}
+
diff --git a/src/core/symbology-ng/qgssvgcache.h b/src/core/symbology-ng/qgssvgcache.h
@@ -24,6 +24,7 @@
 #include <QMultiHash>
 #include <QString>
 
+class QDomElement;
 class QImage;
 class QPicture;
 
@@ -88,6 +89,8 @@ class QgsSvgCache
     QMultiHash< QString, QgsSvgCacheEntry* > mEntryLookup;
     /**Estimated total size of all images and pictures*/
     double mTotalSize;
+    /**Replaces parameters in elements of a dom node and calls method for all child nodes*/
+    void replaceElemParams( QDomElement& elem, const QColor& fill, const QColor& outline, double outlineWidth );
 };
 
 #endif // QGSSVGCACHE_H