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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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62
vtm-android/src/org/oscim/android/canvas/AndroidSvgBitmap.java
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@@ -28,35 +28,59 @@ import java.io.InputStream;
public class AndroidSvgBitmap extends AndroidBitmap {
/**
* Default size is 20x20px at baseline mdpi (160dpi).
* Default size is 20x20px (400px) at baseline mdpi (160dpi).
*/
public static float DEFAULT_SIZE = 400f;
private static android.graphics.Bitmap getResourceBitmap(InputStream inputStream) throws IOException {
synchronized (SVG.getVersion()) {
try {
SVG svg = SVG.getFromInputStream(inputStream);
Picture picture = svg.renderToPicture();
public static android.graphics.Bitmap getResourceBitmap(InputStream inputStream, float scaleFactor, float defaultSize, int width, int height, int percent) throws IOException {
try {
SVG svg = SVG.getFromInputStream(inputStream);
Picture picture = svg.renderToPicture();
float scaleFactor = CanvasAdapter.dpi / 160;
double scale = scaleFactor / Math.sqrt((picture.getHeight() * picture.getWidth()) / DEFAULT_SIZE);
double scale = scaleFactor / Math.sqrt((picture.getHeight() * picture.getWidth()) / defaultSize);
float bitmapWidth = (float) (picture.getWidth() * scale);
float bitmapHeight = (float) (picture.getHeight() * scale);
float bitmapWidth = (float) (picture.getWidth() * scale);
float bitmapHeight = (float) (picture.getHeight() * scale);
android.graphics.Bitmap bitmap = android.graphics.Bitmap.createBitmap((int) Math.ceil(bitmapWidth),
(int) Math.ceil(bitmapHeight), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawPicture(picture, new RectF(0, 0, bitmapWidth, bitmapHeight));
float aspectRatio = (1f * picture.getWidth()) / picture.getHeight();
return bitmap;
} catch (Exception e) {
throw new IOException(e);
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;
}
android.graphics.Bitmap bitmap = android.graphics.Bitmap.createBitmap((int) Math.ceil(bitmapWidth),
(int) Math.ceil(bitmapHeight), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawPicture(picture, new RectF(0, 0, bitmapWidth, bitmapHeight));
return bitmap;
} catch (Exception e) {
throw new IOException(e);
}
}
AndroidSvgBitmap(InputStream inputStream) throws IOException {
super(getResourceBitmap(inputStream));
private static android.graphics.Bitmap getResourceBitmapImpl(InputStream inputStream) throws IOException {
synchronized (SVG.getVersion()) {
return getResourceBitmap(inputStream, CanvasAdapter.dpi / 160, DEFAULT_SIZE, 0, 0, 100);
}
}
public AndroidSvgBitmap(InputStream inputStream) throws IOException {
super(getResourceBitmapImpl(inputStream));
}
}