bool MapPainterCanvas::HasPattern(const MapParameter& parameter,
const FillStyle& style)
{
// Pattern already loaded with error
if (style.GetPatternId()==0) {
return false;
}
int patternIndex=style.GetPatternId()-1;
if (patternIndex<mPatternLoaded.size() &&
mPatternLoaded[patternIndex])
{
return true;
}
jmethodID methodId=mJniEnv->GetMethodID(mPainterClass, "loadPatternPNG",
"(Ljava/lang/String;I)Z");
if (!methodId)
return false;
for (std::list<std::string>::const_iterator path=parameter.GetPatternPaths().begin();
path!=parameter.GetPatternPaths().end();
++path) {
std::string filename=*path+"/"+style.GetPatternName()+".png";
jstring patternName=mJniEnv->NewStringUTF(filename.c_str());
bool loaded=mJniEnv->CallIntMethod(mPainterObject, methodId,
patternName, patternIndex);
mJniEnv->DeleteLocalRef(patternName);
if (loaded)
{
if (patternIndex>=mPatternLoaded.size())
{
mPatternLoaded.resize(patternIndex+1, false);
}
mPatternLoaded[patternIndex]=true;
return true;
}
}
// Error loading icon file
style.SetPatternId(0);
return false;
}
bool MapPainterCanvas::DrawMap(const StyleConfig& styleConfig,
const Projection& projection,
const MapParameter& parameter,
const MapData& data,
JNIEnv *env,
jobject object)
{
mJniEnv=env;
mPainterClass=env->FindClass("osm/scout/MapPainterCanvas");
mPainterObject=object;
mMinimumLineWidth=parameter.GetLineMinWidthPixel()*25.4/parameter.GetDPI();
return Draw(styleConfig, projection, parameter, data);
}
void MapPainterAgg::SetOutlineFont(const Projection& projection,
const MapParameter& parameter,
double size)
{
if (!fontEngine->load_font(parameter.GetFontName().c_str(),
0,
agg::glyph_ren_outline)) {
std::cout << "Cannot load font '" << parameter.GetFontName() << "'" << std::endl;
return;
}
//fontEngine->resolution(72);
fontEngine->width(size*projection.ConvertWidthToPixel(parameter.GetFontSize()));
fontEngine->height(size*projection.ConvertWidthToPixel(parameter.GetFontSize()));
fontEngine->hinting(true);
fontEngine->flip_y(true);
}
void MapPainterAgg::DrawFill(const Projection& projection,
const MapParameter& parameter,
const FillStyle& fillStyle,
agg::path_storage& path)
{
if (fillStyle.GetFillColor().IsVisible()) {
renderer_aa->color(agg::rgba(fillStyle.GetFillColor().GetR(),
fillStyle.GetFillColor().GetG(),
fillStyle.GetFillColor().GetB(),
fillStyle.GetFillColor().GetA()));
agg::render_scanlines(*rasterizer,*scanlineP8,*renderer_aa);
}
double borderWidth=projection.ConvertWidthToPixel(fillStyle.GetBorderWidth());
if (borderWidth>=parameter.GetLineMinWidthPixel()) {
renderer_aa->color(agg::rgba(fillStyle.GetBorderColor().GetR(),
fillStyle.GetBorderColor().GetG(),
fillStyle.GetBorderColor().GetB(),
fillStyle.GetBorderColor().GetA()));
if (fillStyle.GetBorderDash().empty()) {
agg::conv_stroke<agg::path_storage> stroke(path);
stroke.width(borderWidth);
stroke.line_cap(agg::round_cap);
rasterizer->add_path(stroke);
agg::render_scanlines(*rasterizer,*scanlineP8,*renderer_aa);
}
else {
agg::conv_dash<agg::path_storage> dasher(path);
agg::conv_stroke<agg::conv_dash<agg::path_storage> > stroke(dasher);
stroke.width(borderWidth);
stroke.line_cap(agg::butt_cap);
for (size_t i=0; i<fillStyle.GetBorderDash().size(); i+=2) {
dasher.add_dash(fillStyle.GetBorderDash()[i]*borderWidth,
fillStyle.GetBorderDash()[i+1]*borderWidth);
}
rasterizer->add_path(stroke);
agg::render_scanlines(*rasterizer,*scanlineP8,*renderer_aa);
}
}
}
void MapPainterSVG::DrawLabel(const Projection& projection,
const MapParameter& parameter,
const LabelData& label)
{
if (dynamic_cast<const TextStyle*>(label.style.get())!=NULL) {
const TextStyle* style=dynamic_cast<const TextStyle*>(label.style.get());
#if defined(OSMSCOUT_MAP_SVG_HAVE_LIB_PANGO)
PangoFontDescription* font=GetFont(projection,
parameter,
label.fontSize);
#endif
// TODO: This is not the exact placement, we cannot just move vertical by fontSize, but we must move the actual
// text height. For this we need the text bounding box in LabelData.
stream << " <text";
stream << " x=\"" << label.x << "\"";
stream << " y=\"" << label.y+projection.ConvertWidthToPixel(label.fontSize*parameter.GetFontSize()) << "\"";
stream << " font-family=\"" << parameter.GetFontName() << "\"";
stream << " font-size=\"" << projection.ConvertWidthToPixel(label.fontSize*parameter.GetFontSize()) << "\"";
stream << " fill=\"" << GetColorValue(style->GetTextColor()) << "\"";
if (label.alpha!=1.0) {
stream << " fill-opacity=\"" << label.alpha << "\"";
}
stream << ">";
stream << label.text;
stream << "</text>" << std::endl;
/*
stream << "<rect x=\"" << label.bx1 << "\"" << " y=\"" << label.by1 << "\"" <<" width=\"" << label.bx2-label.bx1 << "\"" << " height=\"" << label.by2-label.by1 << "\""
<< " fill=\"none\" stroke=\"blue\"/>" << std::endl;*/
}
else if (dynamic_cast<const ShieldStyle*>(label.style.get())!=NULL) {
const ShieldStyle* style=dynamic_cast<const ShieldStyle*>(label.style.get());
#if defined(OSMSCOUT_MAP_SVG_HAVE_LIB_PANGO)
PangoFontDescription* font=GetFont(projection,
parameter,
label.fontSize);
#endif
// Shield background
stream << " <rect";
stream << " x=\"" << label.bx1 << "\"";
stream << " y=\"" << label.by1 << "\"";
stream << " width=\"" << label.bx2-label.bx1+1 << "\"";
stream << " height=\"" << label.by2-label.by1+1 << "\"";
stream << " fill=\"" << GetColorValue(style->GetBgColor()) << "\"";
stream << " stroke=\"none\"";
stream << "/>" << std::endl;
// Shield inner border
stream << " <rect";
stream << " x=\"" << label.bx1+2 << "\"";
stream << " y=\"" << label.by1+2 << "\"";
stream << " width=\"" << label.bx2-label.bx1+1-4 << "\"";
stream << " height=\"" << label.by2-label.by1+1-4 << "\"";
stream << " fill=\"none\"";
stream << " stroke=\"" << GetColorValue(style->GetBorderColor()) << "\"";
stream << " stroke-width=\"1\"";
stream << "/>" << std::endl;
// TODO: This is not the exact placement, we cannot just move vertical by fontSize, but we must move the actual
// text height. For this we need the text bounding box in LabelData.
stream << " <text";
stream << " x=\"" << label.x << "\"";
stream << " y=\"" << label.y+projection.ConvertWidthToPixel(label.fontSize*parameter.GetFontSize()) << "\"";
stream << " font-family=\"" << parameter.GetFontName() << "\"";
stream << " font-size=\"" << projection.ConvertWidthToPixel(label.fontSize*parameter.GetFontSize()) << "\"";
stream << " fill=\"" << GetColorValue(style->GetTextColor()) << "\"";
if (label.alpha!=1.0) {
stream << " fill-opacity=\"" << label.alpha << "\"";
}
stream << ">";
stream << label.text;
stream << "</text>" << std::endl;
}
}
void MapPainterCanvas::DrawFillStyle(const Projection& projection,
const MapParameter& parameter,
const FillStyle& fill)
{
if (fill.HasPattern() &&
projection.GetMagnification()>=fill.GetPatternMinMag() &&
HasPattern(parameter,fill)) {
jint patternId=fill.GetPatternId()-1;
jmethodID methodId=mJniEnv->GetMethodID(mPainterClass, "drawPatternArea",
"(I)V");
if (!methodId)
return;
mJniEnv->CallVoidMethod(mPainterObject, methodId, patternId);
}
else if (fill.GetFillColor().IsVisible()) {
jint color=GetColorInt(fill.GetFillColor());
jmethodID methodId=mJniEnv->GetMethodID(mPainterClass, "drawFilledArea",
"(I)V");
if (!methodId)
return;
mJniEnv->CallVoidMethod(mPainterObject, methodId, color);
}
// Draw border
if (fill.GetBorderWidth()>0 &&
fill.GetBorderColor().IsVisible() &&
fill.GetBorderWidth()>=mMinimumLineWidth)
{
double borderWidth=ConvertWidthToPixel(parameter,
fill.GetBorderWidth());
if (borderWidth>=parameter.GetLineMinWidthPixel()) {
jfloatArray javaDash=NULL;
float *dashArray=NULL;
std::vector<double> dash=fill.GetBorderDash();
if (!dash.empty())
{
javaDash=mJniEnv->NewFloatArray(dash.size());
dashArray=new float[dash.size()];
for(int i=0; i<dash.size(); i++)
{
dashArray[i]=dash[i]*borderWidth;
}
mJniEnv->SetFloatArrayRegion(javaDash, 0, dash.size(), dashArray);
}
jmethodID methodId=mJniEnv->GetMethodID(mPainterClass, "drawAreaBorder",
"(IF[F)V");
jint javaColor=GetColorInt(fill.GetBorderColor());
mJniEnv->CallVoidMethod(mPainterObject, methodId, javaColor,
(jfloat)borderWidth, javaDash);
}
}
}