Range *ColorPalette::clone() const
{
ColorPalette *palette = new ColorPalette();
for(const auto& item : _colors){
palette->add( item->clone());
}
palette->defaultColorModel(defaultColorModel());
return palette;
}
bool RasterCoverageConnector::handlePaletteCase(Size<> &rastersize, RasterCoverage* raster) {
auto layerHandle = gdal()->getRasterBand(_handle->handle(), 1);
auto paletteHandle = gdal()->getColorPalette(layerHandle);
ColorPalette *palette = new ColorPalette();
if (!paletteHandle)
return false;
int count = gdal()->getColorPaletteSize(paletteHandle);
if ( count == 0)
return false;
ColorRangeBase::ColorModel model;
GDALPaletteInterp colorType = gdal()->getPaletteColorInterpretation(paletteHandle);
for(int i = 0; i < count; ++i) {
GDALColorEntry *entry = gdal()->getColorPaletteEntry(paletteHandle, i);
if ( !entry)
continue;
QColor clr;
switch ( colorType){
case GPI_RGB:
clr.setRgb(entry->c1, entry->c2, entry->c3);
model = ColorRangeBase::cmRGBA;
break;
case GPI_HLS:
clr.setHsl(entry->c1, entry->c2, entry->c3); break;
model = ColorRangeBase::cmHSLA;
break;
case GPI_CMYK:
clr.setCmyk(entry->c1, entry->c2, entry->c3, entry->c4);
model = ColorRangeBase::cmCYMKA;
break;
case GPI_Gray:
clr.setRgb(entry->c1, entry->c1, entry->c1);
model = ColorRangeBase::cmGREYSCALE;
}
clr.setAlpha(entry->c4);
palette->add(new ColorItem(clr));
}
palette->defaultColorModel(model);
_typeSize = 1;
_gdalValueType = gdal()->rasterDataType(layerHandle);
raster->datadefRef() = DataDefinition(IDomain("colorpalette"), reinterpret_cast<Range *>(palette));
return true;
}
bool CreatePaletteDomain::execute(ExecutionContext *ctx, SymbolTable &symTable)
{
if (_prepState == sNOTPREPARED)
if((_prepState = prepare(ctx, symTable)) != sPREPARED)
return false;
IColorDomain colordomain;
colordomain.prepare();
colordomain->setDescription(_domaindesc);
if ( _parentdomain.isValid())
colordomain->setParent(_parentdomain);
ColorPalette *palette = new ColorPalette();
for(int i=0; i < _items.size(); ++i){
palette->add(new ColorItem(_items[i]));
}
colordomain->range(palette);
QVariant value;
value.setValue<IDomain>(colordomain);
ctx->setOutput(symTable,value,colordomain->name(),itDOMAIN,colordomain->source());
return true;
}
