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SVG symbols: allow custom creation, #74

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This commit is contained in:
Emux
2016-07-19 15:50:54 +03:00
parent 21ea5a7842
commit 3d6cad1a0c
4 changed files with 164 additions and 65 deletions
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37
vtm-ios/src/org/oscim/ios/backend/IosSvgBitmap.java
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@@ -33,7 +33,10 @@ import svg.SVGRenderer;
public class IosSvgBitmap extends IosBitmap {
private static final Logger log = LoggerFactory.getLogger(IosSvgBitmap.class);
private static final float DEFAULT_SIZE = 400f;
/**
* Default size is 20x20px (400px).
*/
public static float DEFAULT_SIZE = 400f;
private static String getStringFromInputStream(InputStream is) {
StringBuilder sb = new StringBuilder();
@@ -52,21 +55,45 @@ public class IosSvgBitmap extends IosBitmap {
return sb.toString();
}
private static UIImage getUIImage(InputStream inputStream) {
public static UIImage getResourceBitmap(InputStream inputStream, float scaleFactor, float defaultSize, int width, int height, int percent) {
String svg = getStringFromInputStream(inputStream);
SVGRenderer renderer = new SVGRenderer(svg);
CGRect viewRect = renderer.getViewRect();
float scaleFactor = CanvasAdapter.dpi / 240;
double scale = scaleFactor / Math.sqrt((viewRect.getHeight() * viewRect.getWidth()) / DEFAULT_SIZE);
double scale = scaleFactor / Math.sqrt((viewRect.getHeight() * viewRect.getWidth()) / defaultSize);
float bitmapWidth = (float) (viewRect.getWidth() * scale);
float bitmapHeight = (float) (viewRect.getHeight() * scale);
float aspectRatio = (float) (viewRect.getWidth() / viewRect.getHeight());
if (width != 0 && height != 0) {
// both width and height set, override any other setting
bitmapWidth = width;
bitmapHeight = height;
} else if (width == 0 && height != 0) {
// only width set, calculate from aspect ratio
bitmapWidth = height * aspectRatio;
bitmapHeight = height;
} else if (width != 0 && height == 0) {
// only height set, calculate from aspect ratio
bitmapHeight = width / aspectRatio;
bitmapWidth = width;
}
if (percent != 100) {
bitmapWidth *= percent / 100f;
bitmapHeight *= percent / 100f;
}
return renderer.asImageWithSize(new CGSize(bitmapWidth, bitmapHeight), 1);
}
private static UIImage getResourceBitmapImpl(InputStream inputStream) {
return getResourceBitmap(inputStream, CanvasAdapter.dpi / 240, DEFAULT_SIZE, 0, 0, 100);
}
public IosSvgBitmap(InputStream inputStream) throws IOException {
super(getUIImage(inputStream));
super(getResourceBitmapImpl(inputStream));
}
}