1 /* 2 * Copyright (C) 2010 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 17 package com.android.camera.ui; 18 19 import static com.android.camera.ui.GLRootView.dpToPixel; 20 import android.content.Context; 21 import android.graphics.Rect; 22 23 import com.android.camera.R; 24 25 import javax.microedition.khronos.opengles.GL11; 26 27 public class GLOptionHeader extends GLView { 28 private static final int FONT_COLOR = 0xFF979797; 29 private static final float FONT_SIZE = 12; 30 private static final int HORIZONTAL_PADDINGS = 4; 31 private static final int VERTICAL_PADDINGS = 2; 32 33 private static int sHorizontalPaddings = -1; 34 private static int sVerticalPaddings; 35 36 private final StringTexture mTitle; 37 private NinePatchTexture mBackground; 38 39 private static void initializeStaticVariables(Context context) { 40 if (sHorizontalPaddings >= 0) return; 41 sHorizontalPaddings = dpToPixel(context, HORIZONTAL_PADDINGS); 42 sVerticalPaddings = dpToPixel(context, VERTICAL_PADDINGS); 43 } 44 45 public GLOptionHeader(Context context, String title) { 46 initializeStaticVariables(context); 47 48 float fontSize = GLRootView.dpToPixel(context, FONT_SIZE); 49 mTitle = StringTexture.newInstance(title, fontSize, FONT_COLOR); 50 setBackground(new NinePatchTexture( 51 context, R.drawable.optionheader_background)); 52 setPaddings(sHorizontalPaddings, 53 sVerticalPaddings, sHorizontalPaddings, sVerticalPaddings); 54 } 55 56 public void setBackground(NinePatchTexture background) { 57 if (mBackground == background) return; 58 mBackground = background; 59 invalidate(); 60 } 61 62 @Override 63 protected void onMeasure(int widthSpec, int heightSpec) { 64 new MeasureHelper(this) 65 .setPreferredContentSize(mTitle.getWidth(), mTitle.getHeight()) 66 .measure(widthSpec, heightSpec); 67 } 68 69 @Override 70 protected void render(GLRootView root, GL11 gl) { 71 if (mBackground != null) { 72 mBackground.setSize(getWidth(), getHeight()); 73 mBackground.draw(root, 0, 0); 74 } 75 Rect p = mPaddings; 76 mTitle.draw(root, p.left, p.top); 77 } 78 } 79
