| /* |
| * 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.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.Path; |
| import android.util.AttributeSet; |
| import android.view.View; |
| |
| import com.android.inputmethod.compat.ViewCompatUtils; |
| import com.android.inputmethod.latin.R; |
| |
| public final class SetupStepIndicatorView extends View { |
| private final Path mIndicatorPath = new Path(); |
| private final Paint mIndicatorPaint = new Paint(); |
| private float mXRatio; |
| |
| public SetupStepIndicatorView(final Context context, final AttributeSet attrs) { |
| super(context, attrs); |
| mIndicatorPaint.setColor(getResources().getColor(R.color.setup_step_background)); |
| mIndicatorPaint.setStyle(Paint.Style.FILL); |
| } |
| |
| public void setIndicatorPosition(final int stepPos, final int totalStepNum) { |
| final int layoutDirection = ViewCompatUtils.getLayoutDirection(this); |
| // The indicator position is the center of the partition that is equally divided into |
| // the total step number. |
| final float partionWidth = 1.0f / totalStepNum; |
| final float pos = stepPos * partionWidth + partionWidth / 2.0f; |
| mXRatio = (layoutDirection == ViewCompatUtils.LAYOUT_DIRECTION_RTL) ? 1.0f - pos : pos; |
| invalidate(); |
| } |
| |
| @Override |
| protected void onDraw(final Canvas canvas) { |
| super.onDraw(canvas); |
| final int xPos = (int)(getWidth() * mXRatio); |
| final int height = getHeight(); |
| mIndicatorPath.rewind(); |
| mIndicatorPath.moveTo(xPos, 0); |
| mIndicatorPath.lineTo(xPos + height, height); |
| mIndicatorPath.lineTo(xPos - height, height); |
| mIndicatorPath.close(); |
| canvas.drawPath(mIndicatorPath, mIndicatorPaint); |
| } |
| } |