89 lines
3.0 KiB
Java
89 lines
3.0 KiB
Java
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.inputmethod.keyboard.internal;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.PorterDuff;
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import android.graphics.PorterDuffXfermode;
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import android.util.AttributeSet;
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import android.widget.RelativeLayout;
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import com.android.inputmethod.latin.common.CoordinateUtils;
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import java.util.ArrayList;
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public final class DrawingPreviewPlacerView extends RelativeLayout {
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private final int[] mKeyboardViewOrigin = CoordinateUtils.newInstance();
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private final ArrayList<AbstractDrawingPreview> mPreviews = new ArrayList<>();
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public DrawingPreviewPlacerView(final Context context, final AttributeSet attrs) {
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super(context, attrs);
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setWillNotDraw(false);
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}
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public void setHardwareAcceleratedDrawingEnabled(final boolean enabled) {
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if (!enabled) return;
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final Paint layerPaint = new Paint();
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layerPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER));
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setLayerType(LAYER_TYPE_HARDWARE, layerPaint);
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}
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public void addPreview(final AbstractDrawingPreview preview) {
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if (mPreviews.indexOf(preview) < 0) {
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mPreviews.add(preview);
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}
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}
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public void setKeyboardViewGeometry(final int[] originCoords, final int width,
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final int height) {
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CoordinateUtils.copy(mKeyboardViewOrigin, originCoords);
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final int count = mPreviews.size();
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for (int i = 0; i < count; i++) {
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mPreviews.get(i).setKeyboardViewGeometry(originCoords, width, height);
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}
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}
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public void deallocateMemory() {
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final int count = mPreviews.size();
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for (int i = 0; i < count; i++) {
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mPreviews.get(i).onDeallocateMemory();
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}
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}
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@Override
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protected void onDetachedFromWindow() {
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super.onDetachedFromWindow();
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deallocateMemory();
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}
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@Override
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public void onDraw(final Canvas canvas) {
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super.onDraw(canvas);
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final int originX = CoordinateUtils.x(mKeyboardViewOrigin);
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final int originY = CoordinateUtils.y(mKeyboardViewOrigin);
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canvas.translate(originX, originY);
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final int count = mPreviews.size();
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for (int i = 0; i < count; i++) {
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mPreviews.get(i).drawPreview(canvas);
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}
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canvas.translate(-originX, -originY);
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}
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}
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