| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.taobao.weex.ui.flat.widget; |
| |
| |
| import android.graphics.Canvas; |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.graphics.drawable.Drawable; |
| import android.support.annotation.NonNull; |
| import android.support.annotation.Nullable; |
| import android.support.annotation.RestrictTo; |
| import android.support.annotation.RestrictTo.Scope; |
| import android.view.View; |
| import com.taobao.weex.ui.flat.FlatGUIContext; |
| import com.taobao.weex.ui.view.border.BorderDrawable; |
| import com.taobao.weex.utils.WXViewUtils; |
| |
| @RestrictTo(Scope.LIBRARY) |
| abstract class BaseWidget implements Widget { |
| |
| //TODO Reconsider the field parameter in this class and the operation during draw(); Make a CPU/Memory balance. |
| //TODO use float to avoid 1px problem |
| private BorderDrawable backgroundBorder; |
| private int leftOffset, topOffset, rightOffset, bottomOffset; |
| private Rect borderBox = new Rect(); |
| private Point offsetOfContainer = new Point(); |
| private final @NonNull |
| FlatGUIContext context; |
| |
| BaseWidget(@NonNull FlatGUIContext context){ |
| this.context = context; |
| } |
| |
| @Override |
| public void setLayout(int width, int height, int left, int right, int top, int bottom, Point offset) { |
| this.offsetOfContainer = offset; |
| borderBox.set(left, top, left + width, top + height); |
| if (backgroundBorder != null) { |
| setBackgroundAndBorder(backgroundBorder); |
| } |
| invalidate(); |
| } |
| |
| @Override |
| public void setContentBox(int leftOffset, int topOffset, int rightOffset, int bottomOffset) { |
| this.leftOffset = leftOffset; |
| this.topOffset = topOffset; |
| this.rightOffset = rightOffset; |
| this.bottomOffset = bottomOffset; |
| invalidate(); |
| } |
| |
| @Override |
| public void setBackgroundAndBorder(@NonNull BorderDrawable backgroundBorder) { |
| //TODO Change the code of BorderDrawable is more appropriate as it draws the borderLine from (0,0) not from getBounds |
| //TODO If the above is finished, no more traslate in draw in needed, only clip is enough. |
| this.backgroundBorder = backgroundBorder; |
| Rect backgroundBox = new Rect(borderBox); |
| backgroundBox.offset(-borderBox.left, -borderBox.top); |
| backgroundBorder.setBounds(backgroundBox); |
| setCallback(backgroundBorder); |
| invalidate(); |
| } |
| |
| @NonNull |
| @Override |
| public final Point getLocInFlatContainer() { |
| return offsetOfContainer; |
| } |
| |
| @Nullable |
| @Override |
| public final BorderDrawable getBackgroundAndBorder() { |
| return backgroundBorder; |
| } |
| |
| @NonNull |
| @Override |
| public final Rect getBorderBox() { |
| return borderBox; |
| } |
| |
| @Override |
| public final void draw(@NonNull Canvas canvas) { |
| canvas.save(); |
| WXViewUtils.clipCanvasWithinBorderBox(this, canvas); |
| canvas.translate(borderBox.left, borderBox.top); |
| if (backgroundBorder != null) { |
| backgroundBorder.draw(canvas); |
| } |
| canvas.clipRect(leftOffset, topOffset, borderBox.width()-rightOffset, borderBox.height() - bottomOffset); |
| canvas.translate(leftOffset, topOffset); |
| onDraw(canvas); |
| canvas.restore(); |
| } |
| |
| protected void invalidate() { |
| Rect dirtyRegion = new Rect(borderBox); |
| dirtyRegion.offset(offsetOfContainer.x, offsetOfContainer.y); |
| View widgetContainer; |
| if ((widgetContainer = context.getWidgetContainerView(this)) != null) { |
| widgetContainer.invalidate(dirtyRegion); |
| } |
| } |
| |
| protected void setCallback(@NonNull Drawable drawable) { |
| View widgetContainer; |
| if ((widgetContainer = context.getWidgetContainerView(this)) != null) { |
| drawable.setCallback(widgetContainer); |
| } |
| } |
| } |
| |