初始化内容

third/lunasvg/examples/svg2png.cpp

@@ -0,0 +1,67 @@
+#include <lunasvg.h>
+
+#include <iostream>
+#include <sstream>
+
+using namespace lunasvg;
+
+int help()
+{
+    std::cout << "Usage: \n"
+                 "   svg2png [filename] [resolution] [bgColor]\n\n"
+                 "Examples: \n"
+                 "    $ svg2png input.svg\n"
+                 "    $ svg2png input.svg 512x512\n"
+                 "    $ svg2png input.svg 512x512 0xff00ffff\n\n";
+    return 1;
+}
+
+bool setup(int argc, char** argv, std::string& filename, std::uint32_t& width, std::uint32_t& height, std::uint32_t& bgColor)
+{
+    if(argc > 1) filename.assign(argv[1]);
+    if(argc > 2) {
+        std::stringstream ss;
+        ss << argv[2];
+        ss >> width;
+
+        if(ss.fail() || ss.get() != 'x')
+            return false;
+        ss >> height;
+    }
+
+    if(argc > 3) {
+        std::stringstream ss;
+        ss << std::hex << argv[3];
+        ss >> std::hex >> bgColor;
+    }
+
+    return argc > 1;
+}
+
+int main(int argc, char* argv[])
+{
+    std::string filename;
+    std::uint32_t width = 0, height = 0;
+    std::uint32_t bgColor = 0x00000000;
+    if(!setup(argc, argv, filename, width, height, bgColor)) {
+        return help();
+    }
+
+    auto document = Document::loadFromFile(filename);
+    if(document == nullptr) {
+        return help();
+    }
+
+    auto bitmap = document->renderToBitmap(width, height, bgColor);
+    if(bitmap.isNull()) {
+        return help();
+    }
+
+    auto lastSlashIndex = filename.find_last_of("/\\");
+    auto basename = lastSlashIndex == std::string::npos ? filename : filename.substr(lastSlashIndex + 1);
+    basename.append(".png");
+
+    bitmap.writeToPng(basename);
+    std::cout << "Generated PNG file: " << basename << std::endl;
+    return 0;
+}