Add gallery guide
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/*
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* Copyright 2016 Hippo Seven
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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.hippo.ehviewer.widget;
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import android.annotation.TargetApi;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.os.Build;
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import android.util.AttributeSet;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.TextView;
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import com.hippo.ehviewer.R;
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import com.hippo.ehviewer.Settings;
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import com.hippo.yorozuya.ViewUtils;
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public class GalleryGuideView extends ViewGroup implements View.OnClickListener {
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private int mBgColor;
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private Paint mPaint;
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private final float[] mPoints = new float[3 * 4];
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private int mStep;
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private TextView mLeftText;
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private TextView mRightText;
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private TextView mMenuText;
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private TextView mProgressText;
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private TextView mLongClickText;
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public GalleryGuideView(Context context) {
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super(context);
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init(context);
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}
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public GalleryGuideView(Context context, AttributeSet attrs) {
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super(context, attrs);
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init(context);
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}
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public GalleryGuideView(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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init(context);
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}
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@TargetApi(Build.VERSION_CODES.LOLLIPOP)
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public GalleryGuideView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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init(context);
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}
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@SuppressWarnings("deprecation")
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private void init(Context context) {
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mBgColor = context.getResources().getColor(R.color.guide_bg);
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mPaint = new Paint();
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mPaint.setColor(Color.WHITE);
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mPaint.setStyle(Paint.Style.STROKE);
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mPaint.setStrokeWidth(context.getResources().getDimension(R.dimen.gallery_guide_divider_width));
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setOnClickListener(this);
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setWillNotDraw(false);
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bind();
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}
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private void bind() {
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// Clear up
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removeAllViews();
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mLeftText = null;
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mRightText = null;
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mMenuText = null;
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mProgressText = null;
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mLongClickText = null;
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switch (mStep) {
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case 0:
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bind1();
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break;
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default:
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case 1:
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bind2();
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break;
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}
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}
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private void bind1() {
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LayoutInflater inflater = LayoutInflater.from(getContext());
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inflater.inflate(R.layout.widget_gallery_guide_1, this);
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mLeftText = (TextView) getChildAt(0);
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mRightText = (TextView) getChildAt(1);
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mMenuText = (TextView) getChildAt(2);
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mProgressText = (TextView) getChildAt(3);
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}
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private void bind2() {
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LayoutInflater inflater = LayoutInflater.from(getContext());
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inflater.inflate(R.layout.widget_gallery_guide_2, this);
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mLongClickText = (TextView) getChildAt(0);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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int widthSize = MeasureSpec.getSize(widthMeasureSpec);
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int widthMode = MeasureSpec.getMode(widthMeasureSpec);
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int heightSize = MeasureSpec.getSize(heightMeasureSpec);
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int heightMode = MeasureSpec.getMode(heightMeasureSpec);
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if (MeasureSpec.EXACTLY != widthMode || MeasureSpec.EXACTLY != heightMode) {
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throw new IllegalStateException();
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}
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switch (mStep) {
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case 0:
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mLeftText.measure(MeasureSpec.makeMeasureSpec(widthSize / 3, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY));
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mRightText.measure(MeasureSpec.makeMeasureSpec(widthSize / 3, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY));
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mMenuText.measure(MeasureSpec.makeMeasureSpec(widthSize / 3, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(heightSize * 2 / 3, MeasureSpec.EXACTLY));
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mProgressText.measure(MeasureSpec.makeMeasureSpec(widthSize / 3, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(heightSize / 3, MeasureSpec.EXACTLY));
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break;
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default:
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case 1:
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mLongClickText.measure(MeasureSpec.makeMeasureSpec(widthSize, MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec(heightSize, MeasureSpec.EXACTLY));
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break;
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}
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setMeasuredDimension(widthSize, heightSize);
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}
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@Override
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protected void onLayout(boolean changed, int l, int t, int r, int b) {
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int width = r - l;
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int height = b - t;
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switch (mStep) {
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case 0:
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mLeftText.layout(0, 0, width / 3, height);
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mRightText.layout(width * 2 / 3, 0, width, height);
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mMenuText.layout(width / 3, 0, width * 2 / 3, height * 2 / 3);
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mProgressText.layout(width / 3, height * 2 / 3, width * 2 / 3, height);
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break;
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default:
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case 1:
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mLongClickText.layout(0, 0, width, height);
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break;
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}
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}
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@Override
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protected void onSizeChanged(int w, int h, int oldw, int oldh) {
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super.onSizeChanged(w, h, oldw, oldh);
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if (0 == mStep) {
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mPoints[0] = w / 3;
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mPoints[1] = 0;
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mPoints[2] = w / 3;
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mPoints[3] = h;
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mPoints[4] = w * 2 / 3;
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mPoints[5] = 0;
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mPoints[6] = w * 2 / 3;
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mPoints[7] = h;
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mPoints[8] = w / 3;
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mPoints[9] = h * 2 / 3;
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mPoints[10] = w * 2 / 3;
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mPoints[11] = h * 2 / 3;
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}
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}
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@Override
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protected void onDraw(Canvas canvas) {
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super.onDraw(canvas);
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canvas.drawColor(mBgColor);
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if (0 == mStep) {
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canvas.drawLines(mPoints, mPaint);
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}
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}
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@Override
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public void onClick(View v) {
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switch (mStep) {
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case 0:
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mStep++;
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bind();
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break;
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default:
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case 1:
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Settings.putGuideGallery(false);
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ViewUtils.removeFromParent(this);
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break;
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}
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}
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}
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