| /* |
| * 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, |
| 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, |
| 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); |
| } |
| } |