/*
* Copyright (C) 2010 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.ui;
public abstract class DisplayItem {
protected int mBoxWidth;
protected int mBoxHeight;
// setBox() specifies the box that the DisplayItem should render into. It
// should be called before first render(). It may be called again between
// render() calls to change the size of the box.
public void setBox(int width, int height) {
mBoxWidth = width;
mBoxHeight = height;
}
// Return values of render():
// RENDER_MORE_PASS: more pass is needed for this item
// RENDER_MORE_FRAME: need to render next frame (used for animation)
public static final int RENDER_MORE_PASS = 1;
public static final int RENDER_MORE_FRAME = 2;
public abstract int render(GLCanvas canvas, int pass);
public abstract long getIdentity();
public int getRotation() {
return 0;
}
}