/*
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* Copyright (C) 2014 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.camera.widget;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.graphics.RectF;
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import android.util.AttributeSet;
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import android.view.Gravity;
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import android.view.MotionEvent;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.FrameLayout;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import com.android.camera.CaptureLayoutHelper;
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import com.android.camera.ShutterButton;
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import com.android.camera.debug.Log;
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import com.android.camera.ui.PreviewOverlay;
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import com.android.camera.ui.TouchCoordinate;
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import com.android.camera2.R;
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/**
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* ModeOptionsOverlay is a FrameLayout which positions mode options in
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* in the bottom of the preview that is visible above the bottom bar.
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*/
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public class ModeOptionsOverlay extends FrameLayout
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implements PreviewOverlay.OnPreviewTouchedListener,
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ShutterButton.OnShutterButtonListener {
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private final static Log.Tag TAG = new Log.Tag("ModeOptionsOverlay");
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private static final int BOTTOMBAR_OPTIONS_TIMEOUT_MS = 2000;
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private static final int BOTTOM_RIGHT = Gravity.BOTTOM | Gravity.RIGHT;
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private static final int TOP_RIGHT = Gravity.TOP | Gravity.RIGHT;
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private ModeOptions mModeOptions;
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// need a reference to set the onClickListener and fix the layout gravity on orientation change
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private LinearLayout mModeOptionsToggle;
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// need a reference to fix the rotation on orientation change
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private ImageView mThreeDots;
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private CaptureLayoutHelper mCaptureLayoutHelper = null;
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public ModeOptionsOverlay(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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/**
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* Whether the mode options are hidden.
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*/
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public boolean isModeOptionsHidden() {
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return mModeOptions.isHiddenOrHiding();
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}
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/**
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* Gets the current width of the mode options toggle including the three dots and various mode
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* option indicators.
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*/
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public float getModeOptionsToggleWidth() {
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return mModeOptionsToggle.getWidth();
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}
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/**
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* Sets a capture layout helper to query layout rect from.
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*/
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public void setCaptureLayoutHelper(CaptureLayoutHelper helper) {
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mCaptureLayoutHelper = helper;
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}
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public void setToggleClickable(boolean clickable) {
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mModeOptionsToggle.setClickable(clickable);
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}
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public void showExposureOptions() {
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mModeOptions.showExposureOptions();
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}
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/**
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* Sets the mode options listener.
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*
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* @param listener The listener to be set.
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*/
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public void setModeOptionsListener(ModeOptions.Listener listener) {
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mModeOptions.setListener(listener);
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}
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@Override
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public void onFinishInflate() {
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mModeOptions = (ModeOptions) findViewById(R.id.mode_options);
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mModeOptions.setClickable(true);
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mModeOptions.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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closeModeOptions();
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}
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});
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mModeOptionsToggle = (LinearLayout) findViewById(R.id.mode_options_toggle);
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mModeOptionsToggle.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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mModeOptions.animateVisible();
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}
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});
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mModeOptions.setViewToShowHide(mModeOptionsToggle);
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mThreeDots = (ImageView) findViewById(R.id.three_dots);
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}
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@Override
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public void onPreviewTouched(MotionEvent ev) {
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closeModeOptions();
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}
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@Override
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public void onShutterButtonClick() {
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closeModeOptions();
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}
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@Override
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public void onShutterCoordinate(TouchCoordinate coord) {
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// Do nothing.
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}
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@Override
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public void onShutterButtonFocus(boolean pressed) {
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// noop
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}
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@Override
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public void onShutterButtonLongPressed() {
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// noop
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}
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/**
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* Schedule (or re-schedule) the options menu to be closed after a number
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* of milliseconds. If the options menu is already closed, nothing is
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* scheduled.
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*/
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public void closeModeOptions() {
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mModeOptions.animateHidden();
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}
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@Override
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public void onConfigurationChanged(Configuration configuration) {
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super.onConfigurationChanged(configuration);
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checkOrientation(configuration.orientation);
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}
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@Override
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public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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if (mCaptureLayoutHelper == null) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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Log.e(TAG, "Capture layout helper needs to be set first.");
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} else {
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RectF uncoveredPreviewRect = mCaptureLayoutHelper.getUncoveredPreviewRect();
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super.onMeasure(MeasureSpec.makeMeasureSpec(
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(int) uncoveredPreviewRect.width(), MeasureSpec.EXACTLY),
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MeasureSpec.makeMeasureSpec((int) uncoveredPreviewRect.height(),
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MeasureSpec.EXACTLY)
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);
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}
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}
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/**
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* Set the layout gravity of the child layout to be bottom or top right
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* depending on orientation.
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*/
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private void checkOrientation(int orientation) {
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final boolean isPortrait = (Configuration.ORIENTATION_PORTRAIT == orientation);
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final int modeOptionsDimension = (int) getResources()
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.getDimension(R.dimen.mode_options_height);
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FrameLayout.LayoutParams modeOptionsParams
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= (FrameLayout.LayoutParams) mModeOptions.getLayoutParams();
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FrameLayout.LayoutParams modeOptionsToggleParams
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= (FrameLayout.LayoutParams) mModeOptionsToggle.getLayoutParams();
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if (isPortrait) {
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modeOptionsParams.height = modeOptionsDimension;
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modeOptionsParams.width = ViewGroup.LayoutParams.MATCH_PARENT;
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modeOptionsParams.gravity = Gravity.BOTTOM;
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modeOptionsToggleParams.gravity = BOTTOM_RIGHT;
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mThreeDots.setImageResource(R.drawable.ic_options_port);
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} else {
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modeOptionsParams.width = modeOptionsDimension;
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modeOptionsParams.height = ViewGroup.LayoutParams.MATCH_PARENT;
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modeOptionsParams.gravity = Gravity.RIGHT;
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modeOptionsToggleParams.gravity = TOP_RIGHT;
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mThreeDots.setImageResource(R.drawable.ic_options_land);
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}
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requestLayout();
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}
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}
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