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/*
* Copyright (C) 2013 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.inputmethod.latin.setup;
import android.content.Context;
import android.content.res.ColorStateList;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Path;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.inputmethod.compat.ViewCompatUtils;
import com.android.inputmethod.latin.R;
public final class SetupStartIndicatorView extends LinearLayout {
public SetupStartIndicatorView(final Context context, final AttributeSet attrs) {
super(context, attrs);
setOrientation(HORIZONTAL);
LayoutInflater.from(context).inflate(R.layout.setup_start_indicator_label, this);
final LabelView labelView = (LabelView)findViewById(R.id.setup_start_label);
labelView.setIndicatorView(findViewById(R.id.setup_start_indicator));
}
public static final class LabelView extends TextView {
private View mIndicatorView;
public LabelView(final Context context, final AttributeSet attrs) {
super(context, attrs);
}
public void setIndicatorView(final View indicatorView) {
mIndicatorView = indicatorView;
}
@Override
public void setPressed(final boolean pressed) {
super.setPressed(pressed);
if (mIndicatorView != null) {
mIndicatorView.setPressed(pressed);
}
}
}
public static final class IndicatorView extends View {
private final Path mIndicatorPath = new Path();
private final Paint mIndicatorPaint = new Paint();
private final ColorStateList mIndicatorColor;
public IndicatorView(final Context context, final AttributeSet attrs) {
super(context, attrs);
mIndicatorColor = getResources().getColorStateList(
R.color.setup_step_action_background);
mIndicatorPaint.setStyle(Paint.Style.FILL);
}
@Override
public void setPressed(final boolean pressed) {
super.setPressed(pressed);
invalidate();
}
@Override
protected void onDraw(final Canvas canvas) {
super.onDraw(canvas);
final int layoutDirection = ViewCompatUtils.getLayoutDirection(this);
final int width = getWidth();
final int height = getHeight();
final float halfHeight = height / 2.0f;
final Path path = mIndicatorPath;
path.rewind();
if (layoutDirection == ViewCompatUtils.LAYOUT_DIRECTION_RTL) {
// Left arrow
path.moveTo(width, 0.0f);
path.lineTo(0.0f, halfHeight);
path.lineTo(width, height);
} else { // LAYOUT_DIRECTION_LTR
// Right arrow
path.moveTo(0.0f, 0.0f);
path.lineTo(width, halfHeight);
path.lineTo(0.0f, height);
}
path.close();
final int[] stateSet = getDrawableState();
final int color = mIndicatorColor.getColorForState(stateSet, 0);
mIndicatorPaint.setColor(color);
canvas.drawPath(path, mIndicatorPaint);
}
}
}
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