/*
* Copyright (C) 2010 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.gallery3d.photoeditor;
import android.content.Context;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import com.android.gallery3d.R;
import com.android.gallery3d.photoeditor.actions.EffectAction;
import com.android.gallery3d.photoeditor.actions.EffectToolFactory;
/**
* Effects bar that contains all effects and shows them in categorized views.
*/
public class EffectsBar extends LinearLayout {
private final LayoutInflater inflater;
private FilterStack filterStack;
private EffectsMenu effectsMenu;
private View effectsGallery;
private ViewGroup effectToolPanel;
private EffectAction activeEffect;
public EffectsBar(Context context, AttributeSet attrs) {
super(context, attrs);
inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void initialize(FilterStack filterStack) {
this.filterStack = filterStack;
effectsMenu = (EffectsMenu) findViewById(R.id.effects_menu);
effectsMenu.setOnToggleListener(new EffectsMenu.OnToggleListener() {
@Override
public boolean onToggle(boolean isSelected, final int effectsId) {
// Create and show effects-gallery only if the clicked toggle isn't selected or it's
// selected but showing an active effect instead of effects-gallery. Set the clicked
// toggle selected only when its effects-gallery will be created and shown.
boolean select = !isSelected || (effectsGallery == null);
exit(select ? new Runnable() {
@Override
public void run() {
createEffectsGallery(effectsId);
}
} : null);
return select;
}
});
}
private void createEffectsGallery(int effectsId) {
// Inflate scrollable effects-gallery and desired effects into effects-bar.
effectsGallery = inflater.inflate(R.layout.photoeditor_effects_gallery, this, false);
ViewGroup scrollView = (ViewGroup) effectsGallery.findViewById(R.id.scroll_view);
ViewGroup effects = (ViewGroup) inflater.inflate(effectsId, scrollView, false);
for (int i = 0; i < effects.getChildCount(); i++) {
setupEffectListener((EffectAction) effects.getChildAt(i));
}
scrollView.addView(effects);
scrollView.scrollTo(0, 0);
addView(effectsGallery, 0);
}
private void setupEffectListener(final EffectAction effect) {
effect.setListener(new EffectAction.Listener() {
@Override
public void onClick() {
if (isEnabled()) {
// Set the clicked effect active before exiting effects-gallery.
activeEffect = effect;
exitEffectsGallery();
// Create effect tool panel first before the factory could create tools within.
createEffectToolPanel();
activeEffect.begin(filterStack,
new EffectToolFactory(effectToolPanel, inflater));
}
}
@Override
public void onDone() {
exit(null);
}
});
}
private void createEffectToolPanel() {
effectToolPanel = (ViewGroup) inflater.inflate(
R.layout.photoeditor_effect_tool_panel, this, false);
((TextView) effectToolPanel.findViewById(R.id.effect_label)).setText(activeEffect.name());
addView(effectToolPanel, 0);
}
private boolean exitEffectsGallery() {
if (effectsGallery != null) {
if (activeEffect != null) {
// Detach the active effect to prevent it stopping effects-gallery from gc.
ViewGroup scrollView = (ViewGroup) effectsGallery.findViewById(R.id.scroll_view);
((ViewGroup) scrollView.getChildAt(0)).removeView(activeEffect);
}
removeView(effectsGallery);
effectsGallery = null;
return true;
}
return false;
}
private boolean exitActiveEffect(final Runnable runnableOnDone) {
if (activeEffect != null) {
SpinnerProgressDialog.showDialog();
activeEffect.end(new Runnable() {
@Override
public void run() {
SpinnerProgressDialog.dismissDialog();
View fullscreenTool = getRootView().findViewById(R.id.fullscreen_effect_tool);
if (fullscreenTool != null) {
((ViewGroup) fullscreenTool.getParent()).removeView(fullscreenTool);
}
removeView(effectToolPanel);
effectToolPanel = null;
activeEffect = null;
if (runnableOnDone != null) {
runnableOnDone.run();
}
}
});
return true;
}
return false;
}
/**
* Exits from effects gallery or the active effect; then executes the runnable if applicable.
*
* @return true if exiting from effects gallery or the active effect; otherwise, false.
*/
public boolean exit(final Runnable runnableOnDone) {
// Exit effects-menu selected states.
effectsMenu.clearSelected();
if (exitActiveEffect(runnableOnDone)) {
return true;
}
boolean exited = exitEffectsGallery();
if (runnableOnDone != null) {
runnableOnDone.run();
}
return exited;
}
}