1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package com.android.gallery3d.ui;
17 
18 import android.graphics.RectF;
19 
20 import com.android.gallery3d.glrenderer.GLCanvas;
21 
22 public interface ScreenNail {
getWidth()23     public int getWidth();
getHeight()24     public int getHeight();
draw(GLCanvas canvas, int x, int y, int width, int height)25     public void draw(GLCanvas canvas, int x, int y, int width, int height);
26 
27     // We do not need to draw this ScreenNail in this frame.
noDraw()28     public void noDraw();
29 
30     // This ScreenNail will not be used anymore. Release related resources.
recycle()31     public void recycle();
32 
33     // This is only used by TileImageView to back up the tiles not yet loaded.
draw(GLCanvas canvas, RectF source, RectF dest)34     public void draw(GLCanvas canvas, RectF source, RectF dest);
35 }
36