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/*
* 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;
import com.android.gallery3d.common.Utils;
import com.android.gallery3d.data.Path;
import android.graphics.Rect;
/**
* Drawer class responsible for drawing selectable frame.
*/
public abstract class SelectionDrawer {
public static final int DATASOURCE_TYPE_NOT_CATEGORIZED = 0;
public static final int DATASOURCE_TYPE_LOCAL = 1;
public static final int DATASOURCE_TYPE_PICASA = 2;
public static final int DATASOURCE_TYPE_MTP = 3;
public static final int DATASOURCE_TYPE_CAMERA = 4;
public abstract void prepareDrawing();
public abstract void draw(GLCanvas canvas, Texture content,
int width, int height, int rotation, Path path,
int topIndex, int dataSourceType, int mediaType,
int darkStripHeight, boolean wantCache, boolean isCaching);
public abstract void drawFocus(GLCanvas canvas, int width, int height);
public void draw(GLCanvas canvas, Texture content, int width, int height,
int rotation, Path path, int mediaType) {
draw(canvas, content, width, height, rotation, path, 0,
DATASOURCE_TYPE_NOT_CATEGORIZED, mediaType,
0, false, false);
}
public static void drawWithRotation(GLCanvas canvas, Texture content,
int x, int y, int width, int height, int rotation) {
if (rotation != 0) {
canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
canvas.rotate(rotation, 0, 0, 1);
}
content.draw(canvas, x, y, width, height);
if (rotation != 0) {
canvas.restore();
}
}
public static void drawWithRotationAndGray(GLCanvas canvas, Texture content,
int x, int y, int width, int height, int rotation,
int topIndex) {
if (rotation != 0) {
canvas.save(GLCanvas.SAVE_FLAG_MATRIX);
canvas.rotate(rotation, 0, 0, 1);
}
if (topIndex > 0 && (content instanceof BasicTexture)) {
float ratio = Utils.clamp(0.3f + 0.2f * topIndex, 0f, 1f);
canvas.drawMixed((BasicTexture) content, 0xFF222222, ratio,
x, y, width, height);
} else {
content.draw(canvas, x, y, width, height);
}
if (rotation != 0) {
canvas.restore();
}
}
public static void drawFrame(GLCanvas canvas, NinePatchTexture frame,
int x, int y, int width, int height) {
Rect p = frame.getPaddings();
frame.draw(canvas, x - p.left, y - p.top, width + p.left + p.right,
height + p.top + p.bottom);
}
}
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