| /* |
| * 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.test.hwui; |
| |
| import android.app.Activity; |
| import android.content.Context; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.BitmapShader; |
| import android.graphics.Canvas; |
| import android.graphics.LinearGradient; |
| import android.graphics.RadialGradient; |
| import android.graphics.Matrix; |
| import android.graphics.Paint; |
| import android.graphics.Shader; |
| import android.graphics.SweepGradient; |
| import android.os.Bundle; |
| import android.view.Gravity; |
| import android.view.View; |
| import android.widget.FrameLayout; |
| import android.widget.SeekBar; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class GradientsActivity extends Activity { |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| final FrameLayout layout = new FrameLayout(this); |
| |
| final ShadersView shadersView = new ShadersView(this); |
| final GradientView gradientView = new GradientView(this); |
| final RadialGradientView radialGradientView = new RadialGradientView(this); |
| final SweepGradientView sweepGradientView = new SweepGradientView(this); |
| final BitmapView bitmapView = new BitmapView(this); |
| |
| final SeekBar rotateView = new SeekBar(this); |
| rotateView.setMax(360); |
| rotateView.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { |
| public void onStopTrackingTouch(SeekBar seekBar) { |
| } |
| |
| public void onStartTrackingTouch(SeekBar seekBar) { |
| } |
| |
| public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { |
| gradientView.setRotationY((float) progress); |
| radialGradientView.setRotationX((float) progress); |
| sweepGradientView.setRotationY((float) progress); |
| bitmapView.setRotationX((float) progress); |
| } |
| }); |
| |
| layout.addView(shadersView); |
| layout.addView(gradientView, new FrameLayout.LayoutParams( |
| 200, 200, Gravity.CENTER)); |
| |
| FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(200, 200, Gravity.CENTER); |
| lp.setMargins(220, 0, 0, 0); |
| layout.addView(radialGradientView, lp); |
| |
| lp = new FrameLayout.LayoutParams(200, 200, Gravity.CENTER); |
| lp.setMargins(440, 0, 0, 0); |
| layout.addView(sweepGradientView, lp); |
| |
| lp = new FrameLayout.LayoutParams(200, 200, Gravity.CENTER); |
| lp.setMargins(220, -220, 0, 0); |
| layout.addView(bitmapView, lp); |
| |
| layout.addView(rotateView, new FrameLayout.LayoutParams( |
| 300, FrameLayout.LayoutParams.WRAP_CONTENT, |
| Gravity.CENTER_HORIZONTAL | Gravity.BOTTOM)); |
| |
| setContentView(layout); |
| } |
| |
| static class BitmapView extends View { |
| private final Paint mPaint; |
| |
| BitmapView(Context c) { |
| super(c); |
| |
| Bitmap texture = BitmapFactory.decodeResource(c.getResources(), R.drawable.sunset1); |
| BitmapShader shader = new BitmapShader(texture, Shader.TileMode.REPEAT, |
| Shader.TileMode.REPEAT); |
| mPaint = new Paint(); |
| mPaint.setShader(shader); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| setMeasuredDimension(200, 200); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRect(0.0f, 0.0f, getWidth(), getHeight(), mPaint); |
| } |
| } |
| |
| static class GradientView extends View { |
| private final Paint mPaint; |
| |
| GradientView(Context c) { |
| super(c); |
| |
| LinearGradient gradient = new LinearGradient(0, 0, 200, 0, 0xFF000000, 0, |
| Shader.TileMode.CLAMP); |
| mPaint = new Paint(); |
| mPaint.setShader(gradient); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| setMeasuredDimension(200, 200); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRect(0.0f, 0.0f, getWidth(), getHeight(), mPaint); |
| } |
| } |
| |
| static class RadialGradientView extends View { |
| private final Paint mPaint; |
| |
| RadialGradientView(Context c) { |
| super(c); |
| |
| RadialGradient gradient = new RadialGradient(0.0f, 0.0f, 100.0f, 0xff000000, 0xffffffff, |
| Shader.TileMode.MIRROR); |
| mPaint = new Paint(); |
| mPaint.setShader(gradient); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| setMeasuredDimension(200, 200); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRect(0.0f, 0.0f, getWidth(), getHeight(), mPaint); |
| } |
| } |
| |
| static class SweepGradientView extends View { |
| private final Paint mPaint; |
| |
| SweepGradientView(Context c) { |
| super(c); |
| |
| SweepGradient gradient = new SweepGradient(100.0f, 100.0f, 0xff000000, 0xffffffff); |
| mPaint = new Paint(); |
| mPaint.setShader(gradient); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| setMeasuredDimension(200, 200); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRect(0.0f, 0.0f, getWidth(), getHeight(), mPaint); |
| } |
| } |
| |
| static class ShadersView extends View { |
| private final Paint mPaint; |
| private final float mDrawWidth; |
| private final float mDrawHeight; |
| private final LinearGradient mGradient; |
| private final LinearGradient mGradientStops; |
| private final Matrix mMatrix; |
| |
| ShadersView(Context c) { |
| super(c); |
| |
| mDrawWidth = 200; |
| mDrawHeight = 200; |
| |
| mGradient = new LinearGradient(0, 0, 0, 1, 0xFF000000, 0, Shader.TileMode.CLAMP); |
| mGradientStops = new LinearGradient(0, 0, 0, 1, |
| new int[] { 0xFFFF0000, 0xFF00FF00, 0xFF0000FF }, null, Shader.TileMode.CLAMP); |
| |
| mMatrix = new Matrix(); |
| |
| mPaint = new Paint(); |
| } |
| |
| @Override |
| protected void onDraw(Canvas canvas) { |
| super.onDraw(canvas); |
| canvas.drawRGB(255, 255, 255); |
| |
| // Gradients |
| canvas.save(); |
| float top = 40.0f; |
| float right = 40.0f + mDrawWidth; |
| float left = 40.0f; |
| float bottom = 40.0f + mDrawHeight; |
| |
| mPaint.setShader(mGradient); |
| |
| mMatrix.setScale(1, mDrawWidth); |
| mMatrix.postRotate(90); |
| mMatrix.postTranslate(right, top); |
| mGradient.setLocalMatrix(mMatrix); |
| canvas.drawRect(right - mDrawWidth, top, right, top + mDrawHeight, mPaint); |
| |
| top += 40.0f + mDrawHeight; |
| bottom += 40.0f + mDrawHeight; |
| |
| mMatrix.setScale(1, mDrawHeight); |
| mMatrix.postTranslate(left, top); |
| mGradient.setLocalMatrix(mMatrix); |
| canvas.drawRect(left, top, right, top + mDrawHeight, mPaint); |
| |
| left += 40.0f + mDrawWidth; |
| right += 40.0f + mDrawWidth; |
| top -= 40.0f + mDrawHeight; |
| bottom -= 40.0f + mDrawHeight; |
| |
| mMatrix.setScale(1, mDrawHeight); |
| mMatrix.postRotate(180); |
| mMatrix.postTranslate(left, bottom); |
| mGradient.setLocalMatrix(mMatrix); |
| canvas.drawRect(left, bottom - mDrawHeight, right, bottom, mPaint); |
| |
| top += 40.0f + mDrawHeight; |
| bottom += 40.0f + mDrawHeight; |
| |
| mMatrix.setScale(1, mDrawWidth); |
| mMatrix.postRotate(-90); |
| mMatrix.postTranslate(left, top); |
| mGradient.setLocalMatrix(mMatrix); |
| canvas.drawRect(left, top, left + mDrawWidth, bottom, mPaint); |
| |
| right = left + mDrawWidth; |
| left = 40.0f; |
| top = bottom + 20.0f; |
| bottom = top + 50.0f; |
| |
| mPaint.setShader(mGradientStops); |
| |
| mMatrix.setScale(1, mDrawWidth); |
| mMatrix.postRotate(90); |
| mMatrix.postTranslate(right, top); |
| mGradientStops.setLocalMatrix(mMatrix); |
| canvas.drawRect(left, top, right, bottom, mPaint); |
| |
| canvas.restore(); |
| } |
| } |
| } |