Render themes: SVG resources, closes #60

vtm-desktop/build.gradle

@@ -8,6 +8,7 @@ dependencies {
     compile files('natives')
     compile "com.badlogicgames.gdx:gdx-platform:$gdxVersion:natives-desktop"
     compile "com.badlogicgames.gdx:gdx-backend-jglfw:$gdxVersion"
+    compile 'com.kitfox.svg:svg-salamander:1.0'
     compile 'org.slf4j:slf4j-simple:1.7.21'
 }
 

vtm-desktop/src/org/oscim/awt/AwtGraphics.java

@@ -100,6 +100,16 @@ public class AwtGraphics extends CanvasAdapter {
         }
     }
 
+    @Override
+    public Bitmap decodeSvgBitmapImpl(InputStream inputStream) {
+        try {
+            return new AwtSvgBitmap(inputStream);
+        } catch (IOException e) {
+            e.printStackTrace();
+            return null;
+        }
+    }
+
     @Override
     public Bitmap loadBitmapAssetImpl(String relativePathPrefix, String src) {
         try {

vtm-desktop/src/org/oscim/awt/AwtSvgBitmap.java

@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016 devemux86
+ *
+ * This program is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.oscim.awt;
+
+import com.kitfox.svg.SVGCache;
+import com.kitfox.svg.SVGDiagram;
+import com.kitfox.svg.app.beans.SVGIcon;
+
+import org.oscim.backend.CanvasAdapter;
+
+import java.awt.Dimension;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URI;
+
+public class AwtSvgBitmap extends AwtBitmap {
+    private static final float DEFAULT_SIZE = 400f;
+
+    private static BufferedImage getResourceBitmap(InputStream inputStream) throws IOException {
+        synchronized (SVGCache.getSVGUniverse()) {
+            try {
+                URI uri = SVGCache.getSVGUniverse().loadSVG(inputStream, Integer.toString(inputStream.hashCode()));
+                SVGDiagram diagram = SVGCache.getSVGUniverse().getDiagram(uri);
+
+                float scaleFactor = CanvasAdapter.dpi / 240;
+                double scale = scaleFactor / Math.sqrt((diagram.getHeight() * diagram.getWidth()) / DEFAULT_SIZE);
+
+                float bitmapWidth = (float) (diagram.getWidth() * scale);
+                float bitmapHeight = (float) (diagram.getHeight() * scale);
+
+                SVGIcon icon = new SVGIcon();
+                icon.setAntiAlias(true);
+                icon.setPreferredSize(new Dimension((int) bitmapWidth, (int) bitmapHeight));
+                icon.setScaleToFit(true);
+                icon.setSvgURI(uri);
+                BufferedImage bufferedImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
+                icon.paintIcon(null, bufferedImage.createGraphics(), 0, 0);
+
+                return bufferedImage;
+            } catch (Exception e) {
+                throw new IOException(e);
+            }
+        }
+    }
+
+    AwtSvgBitmap(InputStream inputStream) throws IOException {
+        super(getResourceBitmap(inputStream));
+    }
+}