diff options
Diffstat (limited to 'src/com/android/gallery3d/glrenderer/FadeOutTexture.java')
-rw-r--r-- | src/com/android/gallery3d/glrenderer/FadeOutTexture.java | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/glrenderer/FadeOutTexture.java b/src/com/android/gallery3d/glrenderer/FadeOutTexture.java new file mode 100644 index 000000000..b05f3b631 --- /dev/null +++ b/src/com/android/gallery3d/glrenderer/FadeOutTexture.java @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.gallery3d.glrenderer; + + +// FadeOutTexture is a texture which begins with a given texture, then gradually animates +// into fading out totally. +public class FadeOutTexture extends FadeTexture { + @SuppressWarnings("unused") + private static final String TAG = "FadeOutTexture"; + + private final BasicTexture mTexture; + + public FadeOutTexture(BasicTexture texture) { + super(texture.getWidth(), texture.getHeight(), texture.isOpaque()); + mTexture = texture; + } + + @Override + public void draw(GLCanvas canvas, int x, int y, int w, int h) { + if (isAnimating()) { + canvas.save(GLCanvas.SAVE_FLAG_ALPHA); + canvas.setAlpha(getRatio()); + mTexture.draw(canvas, x, y, w, h); + canvas.restore(); + } + } +} |