npe after sleep

renard314 · Mar 30, 2012 · b4fdf77 · b4fdf77
1 parent 74e01bb
commit b4fdf77
Showing 1 changed file with 75 additions and 50 deletions.
diff --git a/src/de/inovex/mtc/ListView3d.java b/src/de/inovex/mtc/ListView3d.java
@@ -10,6 +10,7 @@
 import android.graphics.Paint;
 import android.util.AttributeSet;
 import android.view.View;
+import android.view.animation.Transformation;
 import android.widget.ListView;
 
 public class ListView3d extends ListView {
@@ -30,61 +31,85 @@ public class ListView3d extends ListView {
 	/** Paint object to draw with */
 	private Paint mPaint;
 
+	private final Transformation mTransformation;
+
 	public ListView3d(Context context, AttributeSet attrs) {
 		super(context, attrs);
+		if (!isInEditMode()) {
+			setStaticTransformationsEnabled(true);
+			mTransformation = new Transformation();
+			mTransformation.setTransformationType(Transformation.TYPE_MATRIX);
+		} else {
+			mTransformation = null;
+		}		
 	}
-
+	
 	@Override
-	protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
-		// get top left coordinates
-		final int top = child.getTop();
-		final int left = child.getLeft();
-		Bitmap bitmap = child.getDrawingCache();
-		if (bitmap == null) {
-			child.setDrawingCacheEnabled(true);
-			child.buildDrawingCache();
-			bitmap = child.getDrawingCache();
-		}
-
-		final int centerY = child.getHeight() / 2;
-		final int centerX = child.getWidth() / 2;
-		final int radius = getHeight() / 2;
-		final int absParentCenterY = getTop() + getHeight() / 2;
-		final int absChildCenterY = child.getTop() + centerX;
-		final int distanceY = absParentCenterY - absChildCenterY;
-		final int absDistance = Math.min(radius, Math.abs(distanceY));
-
-		final float translateZ = (float) Math.sqrt((radius * radius) - (absDistance * absDistance));
-
-		double radians = Math.acos((float) absDistance / radius);
-		double degree = 90 - (180 / Math.PI) * radians;
-
-		mCamera.save();
-		mCamera.translate(0, 0, radius - translateZ);
-		mCamera.rotateX((float) degree); // remove this line..
-		if (distanceY < 0) {
-			degree = 360 - degree;
-		}
-		mCamera.rotateY((float) degree); // and change this to rotateX() to get a
-											// wheel like effect
-		mCamera.getMatrix(mMatrix);
-		mCamera.restore();
-
-		// create and initialize the paint object
-		if (mPaint == null) {
-			mPaint = new Paint();
-			mPaint.setAntiAlias(true);
-			mPaint.setFilterBitmap(true);
-		}
-		//highlight elements in the middle
-		mPaint.setColorFilter(calculateLight((float) degree));
-
-		mMatrix.preTranslate(-centerX, -centerY);
-		mMatrix.postTranslate(centerX, centerY);
-		mMatrix.postTranslate(left, top);
-		canvas.drawBitmap(bitmap, mMatrix, mPaint);
-		return false;
+	protected boolean getChildStaticTransformation(View child, Transformation t) {
+		mTransformation.getMatrix().reset();
+		final float scale = 1-((float)getHeight()/child.getTop());
+		final float px = child.getLeft() + (child.getWidth()) / 2;
+		final float py = child.getTop() + (child.getHeight()) / 2;
+		mTransformation.getMatrix().postScale(scale, scale, px, py);
+		t.compose(mTransformation);
+		return true;
 	}
+
+
+//
+//	@Override
+//	protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
+//		// get top left coordinates
+//		final int top = child.getTop();
+//		final int left = child.getLeft();
+//		Bitmap bitmap = child.getDrawingCache();
+//		if (bitmap == null) {
+//			child.setDrawingCacheEnabled(true);
+//			child.buildDrawingCache();
+//			bitmap = child.getDrawingCache();
+//		}
+//
+//		final int centerY = child.getHeight() / 2;
+//		final int centerX = child.getWidth() / 2;
+//		final int radius = getHeight() / 2;
+//		final int absParentCenterY = getTop() + getHeight() / 2;
+//		final int absChildCenterY = child.getTop() + centerX;
+//		final int distanceY = absParentCenterY - absChildCenterY;
+//		final int absDistance = Math.min(radius, Math.abs(distanceY));
+//
+//		final float translateZ = (float) Math.sqrt((radius * radius) - (absDistance * absDistance));
+//
+//		double radians = Math.acos((float) absDistance / radius);
+//		double degree = 90 - (180 / Math.PI) * radians;
+//
+//		mCamera.save();
+//		mCamera.translate(0, 0, radius - translateZ);
+//		mCamera.rotateX((float) degree); // remove this line..
+//		if (distanceY < 0) {
+//			degree = 360 - degree;
+//		}
+//		mCamera.rotateY((float) degree); // and change this to rotateX() to get a
+//											// wheel like effect
+//		mCamera.getMatrix(mMatrix);
+//		mCamera.restore();
+//
+//		// create and initialize the paint object
+//		if (mPaint == null) {
+//			mPaint = new Paint();
+//			mPaint.setAntiAlias(true);
+//			mPaint.setFilterBitmap(true);
+//		}
+//		//highlight elements in the middle
+//		mPaint.setColorFilter(calculateLight((float) degree));
+//
+//		mMatrix.preTranslate(-centerX, -centerY);
+//		mMatrix.postTranslate(centerX, centerY);
+//		mMatrix.postTranslate(left, top);
+//		canvas.drawBitmap(bitmap, mMatrix, mPaint);
+//		return false;
+//	}
+//	
+
 
 	private LightingColorFilter calculateLight(final float rotation) {
 		final double cosRotation = Math.cos(Math.PI * rotation / 180);