raster saveas rendered with QgsSingleBandPseudoColorRenderer fix

blazek · blazek · commit 8c8d02853b5d · 2012-09-17T17:03:41.000+02:00
diff --git a/src/core/raster/qgssinglebandpseudocolorrenderer.cpp b/src/core/raster/qgssinglebandpseudocolorrenderer.cpp
@@ -36,11 +36,27 @@ QgsSingleBandPseudoColorRenderer::~QgsSingleBandPseudoColorRenderer()
 QgsRasterInterface * QgsSingleBandPseudoColorRenderer::clone() const
 {
   QgsRasterShader *shader = 0;
+
   if ( mShader )
   {
     shader = new QgsRasterShader( mShader->minimumValue(), mShader->maximumValue() );
+
+    // Shader function
+    const QgsColorRampShader* origColorRampShader = dynamic_cast<const QgsColorRampShader*>( mShader->rasterShaderFunction() );
+
+    if ( origColorRampShader )
+    {
+      QgsColorRampShader * colorRampShader = new QgsColorRampShader( mShader->minimumValue(), mShader->maximumValue() );
+
+      colorRampShader->setColorRampType( origColorRampShader->colorRampType() );
+
+      colorRampShader->setColorRampItemList( origColorRampShader->colorRampItemList() );
+      shader->setRasterShaderFunction( colorRampShader );
+    }
   }
   QgsSingleBandPseudoColorRenderer * renderer = new QgsSingleBandPseudoColorRenderer( 0, mBand, shader );
+
+
   return renderer;
 }
 
@@ -91,7 +107,7 @@ void * QgsSingleBandPseudoColorRenderer::readBlock( int bandNo, QgsRectangle  co
   void* rasterData = mInput->block( mBand, extent, width, height );
   if ( ! rasterData )
   {
-    QgsDebugMsg("No raster data!" );
+    QgsDebugMsg( "No raster data!" );
     return 0;
   }
 

Original file line number	Diff line number	Diff line change
`@@ -36,11 +36,27 @@ QgsSingleBandPseudoColorRenderer::~QgsSingleBandPseudoColorRenderer()`
`36`	`36`	`QgsRasterInterface * QgsSingleBandPseudoColorRenderer::clone() const`
`37`	`37`	`{`
`38`	`38`	`QgsRasterShader *shader = 0;`
	`39`	`+`
`39`	`40`	`if ( mShader )`
`40`	`41`	`{`
`41`	`42`	`shader = new QgsRasterShader( mShader->minimumValue(), mShader->maximumValue() );`
	`43`	`+`
	`44`	`+ // Shader function`
	`45`	`+ const QgsColorRampShader* origColorRampShader = dynamic_cast<const QgsColorRampShader*>( mShader->rasterShaderFunction() );`
	`46`	`+`
	`47`	`+ if ( origColorRampShader )`
	`48`	`+ {`
	`49`	`+ QgsColorRampShader * colorRampShader = new QgsColorRampShader( mShader->minimumValue(), mShader->maximumValue() );`
	`50`	`+`
	`51`	`+ colorRampShader->setColorRampType( origColorRampShader->colorRampType() );`
	`52`	`+`
	`53`	`+ colorRampShader->setColorRampItemList( origColorRampShader->colorRampItemList() );`
	`54`	`+ shader->setRasterShaderFunction( colorRampShader );`
	`55`	`+ }`
`42`	`56`	`}`
`43`	`57`	`QgsSingleBandPseudoColorRenderer * renderer = new QgsSingleBandPseudoColorRenderer( 0, mBand, shader );`
	`58`	`+`
	`59`	`+`
`44`	`60`	`return renderer;`
`45`	`61`	`}`
`46`	`62`
`@@ -91,7 +107,7 @@ void * QgsSingleBandPseudoColorRenderer::readBlock( int bandNo, QgsRectangle co`
`91`	`107`	`void* rasterData = mInput->block( mBand, extent, width, height );`
`92`	`108`	`if ( ! rasterData )`
`93`	`109`	`{`
`94`		`- QgsDebugMsg("No raster data!" );`
	`110`	`+ QgsDebugMsg( "No raster data!" );`
`95`	`111`	`return 0;`
`96`	`112`	`}`
`97`	`113`