void Renderer_Classified::createLegend()
{
int x = 0, y = 0, yIncrement = 18, width = 24, height = 12, textX = 32, textY = 11;
QImage legend(170, (yIncrement*nClasses), QImage::Format_ARGB32);
QPainter legendPainter(&legend);
legendPainter.setPen(Qt::black);
legendPainter.setCompositionMode(QPainter::CompositionMode_Source);
legendPainter.fillRect(legend.rect(), Qt::transparent);
int colorIndex;
GDALColorEntry colorEntry;
QString text, text1, text2;
for (int i=0; i<nClasses; i++)
{
text1 = "", text2 = "";
if (classBreaks[i] >= 0.0)
{
text1 = " ";
}
if (classBreaks[i+1] >= 0.0)
{
text2 = " ";
}
text = text1 + QString::number(classBreaks[i], 'f', precision) + " to " + text2 + QString::number(classBreaks[i+1], 'f', precision);
colorIndex = floor(((i*1.0) / ((nClasses-1)*1.0)) *254) + 1;
colorTable->GetColorEntryAsRGB(colorIndex, &colorEntry);
QColor swatchColor(colorEntry.c1, colorEntry.c2, colorEntry.c3);
QRectF swatchRect(x, y, width, height);
legendPainter.setBrush(swatchColor);
legendPainter.drawRect(swatchRect);
legendPainter.drawText(textX, textY, text);
y += yIncrement;
textY += yIncrement;
}
legend.save(legendPath);
}
//----------------------------------------------------------------------------------------
// AddAllSwatches
//----------------------------------------------------------------------------------------
void
CZExpXMLExport_Colors::AddAllSwatches( //Color names
IXMLOutStream * ioStream,
const IDocument * inDoc)
{
LogFunctionEnterExit;
if( !inDoc || !ioStream )
return;
InterfacePtr<const IWorkspace> docWorkSpace( const_cast<IDocument*>(inDoc)->GetDocWorkSpace(), UseDefaultIID() );
ASSERT( docWorkSpace );
InterfacePtr<const ISwatchList> docSwatchList( docWorkSpace, UseDefaultIID() );
ASSERT( docSwatchList );
WideString elementStr( STRXMLTag_Colors );
ioStream->IndentLevel(kTrue);
ioStream->Push( elementStr, kTrue );
StXMLPopper autoPopParaStyles( ioStream );
int32 colorCount = docSwatchList->GetNumSwatches();
IZPLog_Str( thisFileLA, enLT_DebugInfo, "Color Swatch Count: %d", colorCount );
Utils<IUIColorUtils> colorUtils;
for( int i = 0; i < colorCount ; ++i )
{
UIDRef swatchRef = docSwatchList->GetNthSwatch(i);
InterfacePtr<const IColorData> swatchColor( swatchRef, UseDefaultIID() );
if( !swatchColor )
continue;
ClassID theClassID = ::GetClass( swatchColor );
AddColorInfo( ioStream, swatchColor, colorUtils);
}
}
