c53ab43d94
Bug: 32463283 Test: make RunSettingsRoboTests Change-Id: Ibf3cf9af05b44a071603d3d7efa6e90ae00c823a
90 lines
3.2 KiB
Java
90 lines
3.2 KiB
Java
/*
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* Copyright (C) 2017 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.settings.widget;
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import android.content.Context;
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import android.graphics.Canvas;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.widget.SeekBar;
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public class DefaultIndicatorSeekBar extends SeekBar {
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private int mDefaultProgress = -1;
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public DefaultIndicatorSeekBar(Context context) {
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super(context);
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}
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public DefaultIndicatorSeekBar(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public DefaultIndicatorSeekBar(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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}
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public DefaultIndicatorSeekBar(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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/**
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* N.B. Only draws the default indicator tick mark, NOT equally spaced tick marks.
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*/
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@Override
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protected void drawTickMarks(Canvas canvas) {
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if (isEnabled() && mDefaultProgress <= getMax() && mDefaultProgress >= getMin()) {
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final Drawable defaultIndicator = getTickMark();
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// Adjust the drawable's bounds to center it at the point where it's drawn.
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final int w = defaultIndicator.getIntrinsicWidth();
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final int h = defaultIndicator.getIntrinsicHeight();
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final int halfW = w >= 0 ? w / 2 : 1;
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final int halfH = h >= 0 ? h / 2 : 1;
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defaultIndicator.setBounds(-halfW, -halfH, halfW, halfH);
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// This mimics the computation of the thumb position, to get the true "default."
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final int availableWidth = getWidth() - mPaddingLeft - mPaddingRight;
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final int range = getMax() - getMin();
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final float scale = range > 0f ? mDefaultProgress / (float) range : 0f;
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final int offset = (int) ((scale * availableWidth) + 0.5f);
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final int indicatorPosition = isLayoutRtl() && getMirrorForRtl()
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? availableWidth - offset + mPaddingRight : offset + mPaddingLeft;
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final int saveCount = canvas.save();
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canvas.translate(indicatorPosition, getHeight() / 2);
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defaultIndicator.draw(canvas);
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canvas.restoreToCount(saveCount);
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}
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}
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/**
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* N.B. This sets the default *unadjusted* progress, i.e. in the SeekBar's [0 - max] terms.
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*/
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public void setDefaultProgress(int defaultProgress) {
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if (mDefaultProgress != defaultProgress) {
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mDefaultProgress = defaultProgress;
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invalidate();
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}
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}
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public int getDefaultProgress() {
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return mDefaultProgress;
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}
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}
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