FGFS-4.1/OpenSceneGraph
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Added "rs=value" Options support to SVG plugin

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This commit is contained in:
Robert Osfield 2017-12-05 16:33:01 +00:00
parent 7f0baaab61
commit a8924a7b36
2 changed files with 33 additions and 13 deletions
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1
src/osgPlugins/dot/ReaderWriterDOT.cpp
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@ -17,6 +17,7 @@
class ReaderWriterDOT : public osgDB::ReaderWriter {
public:
virtual const char* className() const { return "DOT Writer"; }
virtual bool acceptsExtension(const std::string& extension) const { return osgDB::equalCaseInsensitive(extension,"dot"); }

45
src/osgPlugins/svg/ReaderWriterSVG.cpp
View File

@ -36,6 +36,8 @@ class ReaderWriterSVG : public osgDB::ReaderWriter
ReaderWriterSVG()
{
supportsExtension("svg","Scalar Vector Graphics format");
supportsOption("1024x512","Set resolution of the image generated by SVG");
supportsOption("rs=2.0","Scale the resolution of the image generated by SVG");
}
virtual const char* className() const { return "SVG Image Reader"; }
@ -60,24 +62,41 @@ class ReaderWriterSVG : public osgDB::ReaderWriter
osg::Image *image;
if (options)
{
unsigned int w=0, h=0;
std::string op = options->getOptionString();
size_t i = op.find("x");
std::stringstream ss1(op.substr(0, i));
std::stringstream ss2(op.substr(i+1, op.size()));
ss1 >> w;
ss2 >> h;
if (w==0 || h==0){
image = createImage(handle, dimensionData.width, dimensionData.height);
size_t i = op.find("x");
if (i!=std::string::npos)
{
std::stringstream ss1(op.substr(0, i));
std::stringstream ss2(op.substr(i+1, op.size()));
unsigned int w=0, h=0;
ss1 >> w;
ss2 >> h;
if (w!=0 && h!=0)
{
dimensionData.width = w;
dimensionData.height = h;
}
}
else{
image = createImage(handle, w, h);
i = op.find("rs=");
if (i!=std::string::npos)
{
std::stringstream ss(op.substr(i+3, op.size()));
double scale;
ss >> scale;
if (scale!=0.0)
{
dimensionData.width = dimensionData.width * scale;
dimensionData.height = dimensionData.height * scale;
}
}
}
else{
image = createImage(handle, dimensionData.width, dimensionData.height);
}
image = createImage(handle, dimensionData.width, dimensionData.height);
g_object_unref(handle);
image->setFileName(file);
return image;