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platform_packages_apps_Launcher3
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Adding ability to set a custom blur mask filter and alphas in shadow 

generator.

Bug: 63151770
Change-Id: I7d79b700b64ccb949816b7bf31d98cc76fa443ba
This commit is contained in:
Mario Bertschler 2017-07-19 11:44:00 -07:00
parent 60326ece20
commit 665971c007
1 changed files with 10 additions and 5 deletions
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15
src/com/android/launcher3/graphics/ShadowGenerator.java
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@ -53,33 +53,38 @@ public class ShadowGenerator {
private final Canvas mCanvas;
private final Paint mBlurPaint;
private final Paint mDrawPaint;
private final BlurMaskFilter mDefaultBlurMaskFilter;
private ShadowGenerator(Context context) {
mIconSize = LauncherAppState.getIDP(context).iconBitmapSize;
mCanvas = new Canvas();
mBlurPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
mBlurPaint.setMaskFilter(new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL));
mDrawPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
mDefaultBlurMaskFilter = new BlurMaskFilter(mIconSize * BLUR_FACTOR, Blur.NORMAL);
}
public synchronized Bitmap recreateIcon(Bitmap icon) {
return recreateIcon(icon, true);
return recreateIcon(icon, true, mDefaultBlurMaskFilter, AMBIENT_SHADOW_ALPHA,
KEY_SHADOW_ALPHA);
}
public synchronized Bitmap recreateIcon(Bitmap icon, boolean resize) {
public synchronized Bitmap recreateIcon(Bitmap icon, boolean resize,
BlurMaskFilter blurMaskFilter, int ambientAlpha, int keyAlpha) {
int width = resize ? mIconSize : icon.getWidth();
int height = resize ? mIconSize : icon.getHeight();
int[] offset = new int[2];
mBlurPaint.setMaskFilter(blurMaskFilter);
Bitmap shadow = icon.extractAlpha(mBlurPaint, offset);
Bitmap result = Bitmap.createBitmap(width, height, Config.ARGB_8888);
mCanvas.setBitmap(result);
// Draw ambient shadow
mDrawPaint.setAlpha(AMBIENT_SHADOW_ALPHA);
mDrawPaint.setAlpha(ambientAlpha);
mCanvas.drawBitmap(shadow, offset[0], offset[1], mDrawPaint);
// Draw key shadow
mDrawPaint.setAlpha(KEY_SHADOW_ALPHA);
mDrawPaint.setAlpha(keyAlpha);
mCanvas.drawBitmap(shadow, offset[0], offset[1] + KEY_SHADOW_DISTANCE * mIconSize, mDrawPaint);
// Draw the icon