/******************************************************************************* * Catroid: An on-device visual programming system for Android devices * Copyright (C) 2010-2013 The Catrobat Team * (<http://developer.catrobat.org/credits>) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * An additional term exception under section 7 of the GNU Affero * General Public License, version 3, is available at * http://www.catroid.org/catroid/licenseadditionalterm * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ package org.catrobat.musicdroid.soundmixer; import android.util.Log; import android.view.View; import android.view.ViewGroup; import android.widget.RelativeLayout; import android.widget.RelativeLayout.LayoutParams; import org.catrobat.musicdroid.MainActivity; import org.catrobat.musicdroid.R; import org.catrobat.musicdroid.soundmixer.timeline.Timeline; import org.catrobat.musicdroid.soundtracks.SoundTrackView; /** * @author matthias schlesinger */ public class SoundMixerLayout implements HorizontalScrollViewListener { private ObservableHorizontalScrollView horScrollView; private RelativeLayout parentLayout; private SoundMixer soundMixer; private Timeline timeline; public SoundMixerLayout(MainActivity activity, SoundMixer mixer) { soundMixer = mixer; horScrollView = (ObservableHorizontalScrollView) activity.findViewById(R.id.sound_mixer_view); parentLayout = (RelativeLayout) horScrollView.findViewById(R.id.sound_mixer_relative); horScrollView.setScrollViewListener(this); } @Override public void onScrollChanged(ObservableHorizontalScrollView scrollView, int x, int y, int oldx, int oldy) { } public void addTrackToLayout(SoundTrackView track) { positionTrack(track); parentLayout.addView(track); } public void removeTrackFromLayout(SoundTrackView removedTrack, int positionOfRemovedTrack) { parentLayout.removeView(removedTrack); reorderTrackPositionOnRemoveTrack(positionOfRemovedTrack); } public void disableUnselectedViews(int callingTrackId) { for (int child = 0; child < parentLayout.getChildCount(); child++) { View view = parentLayout.getChildAt(child); if (view.getId() != timeline.getId() && view.getId() != callingTrackId) { ((SoundTrackView) view).disableView(); } } } public void enableUnselectedViews(int callingTrackId) { for (int child = 0; child < parentLayout.getChildCount(); child++) { View view = parentLayout.getChildAt(child); if (view.getId() != timeline.getId() && view.getId() != callingTrackId) { ((SoundTrackView) view).enableView(); } } } private void positionTrack(SoundTrackView track) { if (soundMixer.getNumberOfTracks() > 0) { SoundTrackView lowermostTrack = soundMixer.getTrackAtPosition(soundMixer.getNumberOfTracks() - 1); track.alignTrack(RelativeLayout.BELOW, lowermostTrack.getId()); } else { track.alignTrack(RelativeLayout.BELOW, timeline.getId()); } } private void reorderTrackPositionOnRemoveTrack(int trackPosition) { Log.i("SoundMixerLayout", "Reorder: Track Pos = " + trackPosition); int numberOfTracksInSoundMixer = soundMixer.getNumberOfTracks(); if (trackPosition != 0 && trackPosition != numberOfTracksInSoundMixer - 1) { SoundTrackView predecessor = soundMixer.getTrackAtPosition(trackPosition - 1); SoundTrackView successor = soundMixer.getTrackAtPosition(trackPosition + 1); successor.alignTrack(RelativeLayout.BELOW, predecessor.getId()); } else if (trackPosition == 0 && numberOfTracksInSoundMixer > 1) { SoundTrackView successor = soundMixer.getTrackAtPosition(trackPosition + 1); successor.alignTrack(RelativeLayout.BELOW, timeline.getId()); } } public void addTimelineToLayout(Timeline timeline) { this.timeline = timeline; LayoutParams lp = (LayoutParams) timeline.getLayoutParams(); parentLayout.addView(timeline, lp); } public void removeView(SoundTrackView removedView) { parentLayout.removeView(removedView); } public void resizeLayoutWidth(int newWidth) { ViewGroup.LayoutParams layoutParams = parentLayout.getLayoutParams(); layoutParams.width = newWidth; parentLayout.setLayoutParams(layoutParams); } }