view/fantasia/Channel.java

/*
 *   JSampler - a java front-end for LinuxSampler
 *
 *   Copyright (C) 2005-2008 Grigor Iliev <grigor@grigoriliev.com>
 *
 *   This file is part of JSampler.
 *
 *   JSampler is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2
 *   as published by the Free Software Foundation.
 *
 *   JSampler 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 General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with JSampler; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *   MA  02111-1307  USA
 */

package org.jsampler.view.fantasia;

import java.awt.Container;
import java.awt.Dimension;
import java.awt.Rectangle;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

import java.text.NumberFormat;

import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.BoxLayout;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;
import javax.swing.JRadioButtonMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JToolBar;

import org.jdesktop.swingx.JXCollapsiblePane;

import org.jsampler.CC;
import org.jsampler.HF;
import org.jsampler.SamplerChannelModel;

import org.jsampler.event.SamplerChannelEvent;
import org.jsampler.event.SamplerChannelListEvent;
import org.jsampler.event.SamplerChannelListListener;
import org.jsampler.event.SamplerChannelListener;

import org.jsampler.view.JSChannel;
import org.jsampler.view.JSChannelsPane;

import org.jsampler.view.fantasia.basic.PixmapToggleButton;

import org.jsampler.view.std.JSChannelOutputRoutingDlg;
import org.jsampler.view.std.JSFxSendsDlg;
import org.jsampler.view.std.JSFxSendsPane;
import org.jsampler.view.std.JSInstrumentChooser;
import org.jsampler.view.std.JSVolumeEditorPopup;

import org.linuxsampler.lscp.SamplerChannel;

import static org.jsampler.view.fantasia.FantasiaI18n.i18n;
import static org.jsampler.view.fantasia.FantasiaPrefs.*;
import static org.jsampler.view.fantasia.FantasiaUtils.*;
import static org.jsampler.view.std.JSVolumeEditorPopup.VolumeType;


/**
 *
 * @author Grigor Iliev
 */
public class Channel extends JSChannel {
        private final JXCollapsiblePane mainPane;
        private final ChannelOptionsPane optionsPane = new ChannelOptionsPane();
        
        private final ViewTracker viewTracker;
        
        private JSFxSendsDlg fxSendsDlg = null;
        
        private final ContextMenu contextMenu;
        
        private boolean selected = false;
        
        private AnimatedPorpetyListener animatedPorpetyListener = new AnimatedPorpetyListener();
        
        class AnimatedPorpetyListener implements PropertyChangeListener {
                public void
                propertyChange(PropertyChangeEvent e) {
                        mainPane.setAnimated(preferences().getBoolProperty(ANIMATED));
                }
        }
        
        ////////////////////////////////
        // ******* Mouse tracker *******
        ////////////////////////////////
        private static int mouseOverChannelId = -1;
        private static boolean mousePressed = false;
        
        private static ActionListener guiListener = null;
        
        private static Channel oldMouseOverChannel = null;
        private static Channel newMouseOverChannel = null;
        
        
        private static void
        mouseMoved() {
                //TODO: do this for all channels panes
                JSChannelsPane cp = CC.getMainFrame().getChannelsPane(0);
                for(int i = 0; i < cp.getChannelCount(); i++) {
                        mouseMoved((Channel)cp.getChannel(i));
                }
                
                if(oldMouseOverChannel == newMouseOverChannel) return;
                
                if(oldMouseOverChannel != null) oldMouseOverChannel.mouseExited();
                
                if(newMouseOverChannel != null) {
                        mouseOverChannelId = newMouseOverChannel.getChannelId();
                        newMouseOverChannel.mouseEntered();
                }
                
                oldMouseOverChannel = newMouseOverChannel = null;
        }
        
        private static void
        mouseMoved(Channel c) {
                int id = c.getChannelId();
                if(c.mainPane.getMousePosition(true) != null) {
                        newMouseOverChannel = c;
                } else if(id == mouseOverChannelId) {
                        oldMouseOverChannel = c;
                }
        }
        
        ////////////////////////////////
        
        
        /**
         * Creates a new instance of <code>Channel</code> using the specified
         * non-<code>null</code> channel model.
         * @param model The model to be used by this channel.
         * @throws IllegalArgumentException If the model is <code>null</code>.
         */
        public
        Channel(SamplerChannelModel model) {
                this(model, null);
        }
        
        /**
         * Creates a new instance of <code>Channel</code> using the specified
         * non-<code>null</code> channel model.
         * @param model The model to be used by this channel.
         * @param listener A listener which is notified when the newly created
         * channel is fully expanded on the screen.
         * @throws IllegalArgumentException If the model is <code>null</code>.
         */
        public
        Channel(SamplerChannelModel model, final ActionListener listener) {
                super(model);
                
                setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
                optionsPane.setAlignmentX(JPanel.CENTER_ALIGNMENT);
                
                mainPane = new JXCollapsiblePane();
                viewTracker = new ViewTracker();
                contextMenu = new ContextMenu();
                
                mainPane.getContentPane().setLayout (
                        new BoxLayout(mainPane.getContentPane(), BoxLayout.Y_AXIS)
                );
                
                int viewIdx = preferences().getIntProperty(DEFAULT_CHANNEL_VIEW);
                if(viewIdx == 0) {
                        viewTracker.setView(new SmallChannelView(Channel.this));
                } else if(viewIdx == 1) {
                        viewTracker.setView(new NormalChannelView(Channel.this));
                } else {
                        viewTracker.setView(new NormalChannelView(Channel.this));
                }
                
                setOpaque(false);
                
                getModel().addSamplerChannelListener(getHandler());
                
                updateChannelInfo();
                
                add(mainPane);
                
                if(listener != null) {
                        final String s = JXCollapsiblePane.ANIMATION_STATE_KEY;
                        mainPane.addPropertyChangeListener(s, new PropertyChangeListener() {
                                public void
                                propertyChange(PropertyChangeEvent e) {
                                        if(e.getNewValue() == "expanded") {
                                                // TODO: this should be done regardles the listener != null?
                                                mainPane.removePropertyChangeListener(s, this);
                                                ///////
                                                listener.actionPerformed(null);
                                                ensureChannelIsVisible();
                                        } else if(e.getNewValue() == "expanding/collapsing") {
                                                ensureChannelIsVisible();
                                        }
                                }
                        });
                }
                
                mainPane.setAnimated(false);
                mainPane.setCollapsed(true);
                mainPane.setAnimated(preferences().getBoolProperty(ANIMATED));
                mainPane.setCollapsed(false);
                
                preferences().addPropertyChangeListener(ANIMATED, animatedPorpetyListener);
                
                if(listener != null) {
                        javax.swing.SwingUtilities.invokeLater(new Runnable() {
                                public void
                                run() { listener.actionPerformed(null); }
                        });
                }
                
                CC.getSamplerModel().addSamplerChannelListListener(getHandler());
                
                installGuiListener();
        }
        
        private static void
        installGuiListener() {
                if(guiListener != null) return;
                
                guiListener = new ActionListener() {
                        public void
                        actionPerformed(ActionEvent e) {
                                mouseMoved();
                        }
                };
                
                ((MainFrame)CC.getMainFrame()).getGuiTimer().addActionListener(guiListener);
        }
        
        private void
        mouseEntered() {
                viewTracker.mouseEntered();
        }
        
        private void
        mouseExited() {
                viewTracker.mouseExited();
        }
        
        private void
        ensureChannelIsVisible() {
                Container p = getParent();
                JScrollPane sp = null;
                while(p != null) {
                        if(p instanceof JScrollPane) {
                                sp = (JScrollPane)p;
                                break;
                        }
                        p = p.getParent();
                }
                if(sp == null) return;
                int h = sp.getViewport().getView().getHeight();
                sp.getViewport().scrollRectToVisible(new Rectangle(0, h - 2, 1, 1));
        }
        
        /**
         * Determines whether the channel is selected.
         * @return <code>true</code> if the channel is selected, <code>false</code> otherwise.
         */
        @Override
        public boolean
        isSelected() { return selected; }
        
        /**
         * Sets the selection state of this channel.
         * This method is invoked when the selection state of the channel has changed.
         * @param select Specifies the new selection state of this channel;
         * <code>true</code> to select the channel, <code>false</code> otherwise.
         */
        @Override
        public void
        setSelected(boolean select) {
                
                selected = select;
        }
        
        /** Shows the channel properties. */
        public void
        expandChannel() { expandChannel(optionsPane.isAnimated()); }
        
        /** Shows the channel properties. */
        public void
        expandChannel(boolean animated) {
                boolean b = optionsPane.isAnimated();
                optionsPane.setAnimated(animated);
                viewTracker.getCurrentView().expandChannel();
                optionsPane.setAnimated(b);
        }
        
        /**
         * Updates the channel settings. This method is invoked when changes to the
         * channel were made.
         */
        private void
        updateChannelInfo() {
                viewTracker.getCurrentView().updateChannelInfo();
        }
        
        public void
        loadInstrument() {
                JSInstrumentChooser dlg = FantasiaUtils.createInstrumentChooser(CC.getMainFrame());
                dlg.setVisible(true);
                
                if(!dlg.isCancelled()) {
                        SamplerChannelModel m = getModel();
                        m.loadBackendInstrument(dlg.getInstrumentFile(), dlg.getInstrumentIndex());
                }
        }
        
        public void
        fallbackToOriginalView() {
                viewTracker.fallbackToOriginalView();
        }
        
        public boolean
        isUsingOriginalView() {
                return viewTracker.isUsingOriginalView();
        }
        
        protected void
        onDestroy() {
                CC.getSamplerModel().removeSamplerChannelListListener(getHandler());
                preferences().removePropertyChangeListener(ANIMATED, animatedPorpetyListener);
                if(fxSendsDlg != null) fxSendsDlg.dispose();
                viewTracker.onDestroy();
        }
                
        public void
        remove() {
                if(!mainPane.isAnimated()) {
                        CC.getSamplerModel().removeBackendChannel(getChannelId());
                        return;
                }
                
                String s = JXCollapsiblePane.ANIMATION_STATE_KEY;
                mainPane.addPropertyChangeListener(s, getHandler());
                mainPane.setCollapsed(true);
        }
        
        public void
        showOptionsPane(boolean show) { optionsPane.showOptionsPane(show); }
        
        public void
        showFxSendsDialog() {
                if(fxSendsDlg != null && fxSendsDlg.isVisible()) {
                        fxSendsDlg.toFront();
                        return;
                }
                
                fxSendsDlg = new JSFxSendsDlg(new FxSendsPane(getModel()));
                fxSendsDlg.setVisible(true);
        }
        
        private final EventHandler eventHandler = new EventHandler();
        
        private EventHandler
        getHandler() { return eventHandler; }
        
        private class EventHandler implements SamplerChannelListener,
                                        SamplerChannelListListener, PropertyChangeListener {
                /**
                 * Invoked when changes are made to a sampler channel.
                 * @param e A <code>SamplerChannelEvent</code> instance
                 * containing event information.
                 */
                @Override
                public void
                channelChanged(SamplerChannelEvent e) { updateChannelInfo(); }
        
                /**
                 * Invoked when the number of active disk streams has changed.
                 * @param e A <code>SamplerChannelEvent</code> instance
                 * containing event information.
                 */
                @Override
                public void
                streamCountChanged(SamplerChannelEvent e) {
                        viewTracker.getCurrentView().updateStreamCount(getModel().getStreamCount());
                }
        
                /**
                 * Invoked when the number of active voices has changed.
                 * @param e A <code>SamplerChannelEvent</code> instance
                 * containing event information.
                 */
                @Override
                public void
                voiceCountChanged(SamplerChannelEvent e) {
                        viewTracker.getCurrentView().updateVoiceCount(getModel().getVoiceCount());
                }
                
                /**
                 * Invoked when a new sampler channel is created.
                 * @param e A <code>SamplerChannelListEvent</code>
                 * instance providing the event information.
                 */
                @Override
                public void
                channelAdded(SamplerChannelListEvent e) { }
        
                /**
                 * Invoked when a sampler channel is removed.
                 * @param e A <code>SamplerChannelListEvent</code>
                 * instance providing the event information.
                 */
                @Override
                public void
                channelRemoved(SamplerChannelListEvent e) {
                        // Some cleanup when the channel is removed.
                        if(e.getChannelModel().getChannelId() == getChannelId()) {
                                onDestroy();
                        }
                }
                
                @Override
                public void
                propertyChange(PropertyChangeEvent e) {
                        if(e.getNewValue() == "collapsed") {
                                CC.getSamplerModel().removeBackendChannel(getChannelId());
                        }
                }
        }
        
        public ViewTracker
        getViewTracker() { return viewTracker; }
        
        class ViewTracker extends MouseAdapter implements PropertyChangeListener {
                private ChannelView originalView;
                private ChannelView mouseOverView;
                private ChannelView currentView;
                
                private ChannelView.Type mouseOverViewType = null;
                
                ViewTracker() {
                        
                        
                        updateMouseOverViewType();
                        
                        String s = DIFFERENT_CHANNEL_VIEW_ON_MOUSE_OVER;
                        preferences().addPropertyChangeListener(s, this);
                        
                        s = CHANNEL_VIEW_ON_MOUSE_OVER;
                        preferences().addPropertyChangeListener(s, this);
                }
                
                public boolean
                isUsingOriginalView() {
                        return currentView == originalView;
                }
                
                private void
                installListeners() {
                        
                }
                
                private void
                uninstallListeners() {
                        
                }
                
                private void
                updateMouseOverViewType() {
                        if(mouseOverView != null) {
                                mouseOverView.removeEnhancedMouseListener(this);
                        }
                        
                        mouseOverView = null;
                        
                        boolean b;
                        b = preferences().getBoolProperty(DIFFERENT_CHANNEL_VIEW_ON_MOUSE_OVER);
                        if(!b) {
                                mouseOverViewType = null;
                                uninstallListeners();
                                return;
                        }
                        
                        int i = preferences().getIntProperty(CHANNEL_VIEW_ON_MOUSE_OVER);
                        
                        switch(i) {
                                case 0: mouseOverViewType = ChannelView.Type.SMALL; break;
                                case 1: mouseOverViewType = ChannelView.Type.NORMAL; break;
                                default:mouseOverViewType = null;
                        }
                        
                        if(mouseOverViewType != null) {
                                installListeners();
                        }
                }
                
                public ChannelView
                getMouseOverView() {
                        if(mouseOverViewType == null) return null;
                        
                        if(mouseOverView == null) {
                                Channel channel = Channel.this;
                                
                                switch(mouseOverViewType) {
                                case SMALL: mouseOverView = new SmallChannelView(channel); break;
                                case NORMAL: mouseOverView = new NormalChannelView(channel); break;
                                default: mouseOverView = new NormalChannelView(channel);
                                }
                                
                                mouseOverView.addEnhancedMouseListener(this);
                        }
                        
                        return mouseOverView;
                }
                
                public ChannelView
                getCurrentView() { return currentView; }
                
                public ChannelView
                getOriginalView() { return originalView; }
                
                public void
                setView(ChannelView view) {
                        setView(view, true);
                }
                
                public void
                setView(ChannelView view, boolean manual) {
                        boolean selected = false;
                        if(currentView != null) selected = currentView.isOptionsButtonSelected();
                        
                        if(manual) {
                                if(originalView != null) {
                                        originalView.removeEnhancedMouseListener(this);
                                }
                                
                                if(originalView != currentView) destroyOriginalView();
                                if(currentView != null && currentView.getType() == view.getType()) {
                                        originalView = currentView;
                                        originalView.addEnhancedMouseListener(this);
                                        destroyView(view);
                                        return;
                                }
                                
                                removeCurrentView();
                                
                                originalView = view;
                                originalView.addEnhancedMouseListener(this);
                                currentView = view;
                        } else {
                                if(view.getType() == getCurrentView().getType()) {
                                        destroyView(view);
                                        return;
                                }
                                
                                removeCurrentView();
                                currentView = view;
                        }
                        
                        currentView.setOptionsButtonSelected(selected);
                        
                        updateView();
                }
                
                private void
                updateView() {
                        ChannelOptionsView view = getCurrentView().getChannelOptionsView();
                        if(view != null) optionsPane.setContentPane(view.getComponent());
                        
                        updateChannelInfo();
                
                        mainPane.add(getCurrentView().getComponent());
                        mainPane.add(optionsPane);
                        mainPane.validate();
                        mainPane.revalidate();
                        mainPane.repaint();
                }
                
                public void
                fallbackToOriginalView() {
                        if(currentView == originalView) return;
                        
                        boolean selected = false;
                        if(currentView != null) selected = currentView.isOptionsButtonSelected();
                        
                        removeCurrentView();
                        currentView = originalView;
                        currentView.setOptionsButtonSelected(selected);
                        
                        updateView();
                }
                
                private void
                removeCurrentView() { removeView(currentView); }
                
                private void
                destroyCurrentView() { destroyView(currentView); }
                
                private void
                removeOriginalView() { removeView(originalView); }
                
                private void
                destroyOriginalView() { destroyView(originalView); }
                
                private void
                removeView(ChannelView view) {
                        if(view == null) return;
                        
                        mainPane.remove(view.getComponent());
                        mainPane.remove(optionsPane);
                                
                        destroyView(view);
                }
                
                private void
                destroyView(ChannelView view) {
                        if(view == null) return;
                        
                        view.uninstallView();
                        
                        view = null;
                }
                
                public boolean
                isMouseOverEnabled() { return mouseOverViewType != null; }
                
                private void
                mouseEntered() {
                        if(!isMouseOverEnabled()) return;
                        if(getCurrentView().getType() == getMouseOverView().getType()) return;
                        
                        JSChannel[] channels = CC.getMainFrame().getChannelsPane(0).getChannels();
                        for(JSChannel c : channels) {
                                if(c == Channel.this) continue;
                                
                                Channel chn = (Channel)c;
                                if(!(chn).isUsingOriginalView()) chn.fallbackToOriginalView();
                        }
                        
                        setView(getMouseOverView(), false);
                }
                
                private void
                mouseExited() {
                        if(!isMouseOverEnabled()) return;
                        if(getCurrentView().getType() == originalView.getType()) return;
                        
                        fallbackToOriginalView();
                }
                
                @Override
                public void
                mouseEntered(MouseEvent e) {
                        guiListener.actionPerformed(null);
                }
                
                @Override
                public void
                mouseExited(MouseEvent e) {
                        guiListener.actionPerformed(null);
                }
                
                @Override
                public void
                mousePressed(MouseEvent e) {
                        mousePressed = true;
                }
                
                @Override
                public void
                mouseReleased(MouseEvent e) {
                        mousePressed = false;
                }
                
                public void
                onDestroy() {
                        destroyCurrentView();
                        destroyOriginalView();
                        
                        uninstallListeners();
                        
                        if(currentView != null) {
                                currentView.removeEnhancedMouseListener(this);
                        }
                        
                        if(mouseOverView != null) {
                                mouseOverView.removeEnhancedMouseListener(this);
                        }
                        
                        String s = DIFFERENT_CHANNEL_VIEW_ON_MOUSE_OVER;
                        preferences().removePropertyChangeListener(s, this);
                        
                        s = CHANNEL_VIEW_ON_MOUSE_OVER;
                        preferences().removePropertyChangeListener(s, this);
                }
                
                @Override
                public void
                propertyChange(PropertyChangeEvent e) {
                        updateMouseOverViewType();
                }
        }
        
        class EditInstrumentAction extends AbstractAction implements SamplerChannelListener {
                EditInstrumentAction() {
                        super(i18n.getMenuLabel("channels.editInstrument"));
                        channelChanged(null);
                        getModel().addSamplerChannelListener(this);
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        CC.getSamplerModel().editBackendInstrument(getChannelId());
                }
                
                @Override
                public void
                channelChanged(SamplerChannelEvent e) {
                        boolean b = getChannelInfo().getInstrumentStatus() == 100;
                        setEnabled(b);
                }
                
                @Override
                public void
                streamCountChanged(SamplerChannelEvent e) { }
                
                @Override
                public void
                voiceCountChanged(SamplerChannelEvent e) { }
        }
        
        class FxSendsAction extends AbstractAction {
                FxSendsAction() {
                        super(i18n.getMenuLabel("channels.fxSends"));
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        showFxSendsDialog();
                }
        }
        
        class ChannelRoutingAction extends AbstractAction implements SamplerChannelListener {
                ChannelRoutingAction() {
                        super(i18n.getMenuLabel("channels.channelRouting"));
                        channelChanged(null);
                        getModel().addSamplerChannelListener(this);
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        SamplerChannel c = getChannelInfo();
                        new JSChannelOutputRoutingDlg(CC.getMainFrame(), c).setVisible(true);
                }
                
                @Override
                public void
                channelChanged(SamplerChannelEvent e) {
                        boolean b = getChannelInfo().getAudioOutputDevice() != -1;
                        setEnabled(b);
                }
                
                @Override
                public void
                streamCountChanged(SamplerChannelEvent e) { }
                
                @Override
                public void
                voiceCountChanged(SamplerChannelEvent e) { }
        }
        
        class SetSmallViewAction extends AbstractAction {
                SetSmallViewAction() {
                        super(i18n.getMenuLabel("channels.smallView"));
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        viewTracker.setView(new SmallChannelView(Channel.this));
                }
        }
        
        class SetNormalViewAction extends AbstractAction {
                SetNormalViewAction() {
                        super(i18n.getMenuLabel("channels.normalView"));
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        viewTracker.setView(new NormalChannelView(Channel.this));
                }
        }
        
        public ContextMenu
        getContextMenu() { return contextMenu; }
        
        class ContextMenu extends MouseAdapter {
                private JPopupMenu menu = null;
                
                protected JRadioButtonMenuItem rbmiSmallView;
                protected JRadioButtonMenuItem rbmiNormalView;
                
                ContextMenu() {
                        
                }
                
                private void
                createMenu() {
                        menu = new JPopupMenu();
                        menu.add(new JMenuItem(new EditInstrumentAction()));
                        menu.addSeparator();
                        
                        rbmiSmallView = new JRadioButtonMenuItem(new SetSmallViewAction());
                        rbmiNormalView = new JRadioButtonMenuItem(new SetNormalViewAction());
                        if(viewTracker.getOriginalView() instanceof SmallChannelView) {
                                rbmiSmallView.setSelected(true);
                        } else if(viewTracker.getOriginalView() instanceof NormalChannelView) {
                                rbmiNormalView.setSelected(true);
                        }
                        
                        ButtonGroup group = new ButtonGroup();
                        group.add(rbmiSmallView);
                        group.add(rbmiNormalView);
                        
                        menu.add(rbmiSmallView);
                        menu.add(rbmiNormalView);
                        
                        menu.addSeparator();
                        menu.add(new JMenuItem(new FxSendsAction()));
                        menu.add(new JMenuItem(new ChannelRoutingAction()));
                }
                
                private JPopupMenu
                getMenu() {
                        if(menu == null) createMenu();
                        return menu;
                }
                
                @Override
                public void
                mousePressed(MouseEvent e) {
                        if(e.isPopupTrigger()) show(e);
                }
        
                @Override
                public void
                mouseReleased(MouseEvent e) {
                        if(e.isPopupTrigger()) show(e);
                }
        
                void
                show(MouseEvent e) {
                        getMenu().show(e.getComponent(), e.getX(), e.getY());
                }
        }
        
        class FxSendsPane extends JSFxSendsPane {
                FxSendsPane(SamplerChannelModel model) {
                        super(model);
                        
                        actionAddFxSend.putValue(Action.SMALL_ICON, Res.iconNew16);
                        actionRemoveFxSend.putValue(Action.SMALL_ICON, Res.iconDelete16);
                }
                
                @Override
                protected JToolBar
                createToolBar() {
                        JToolBar tb = new JToolBar();
                        Dimension d = new Dimension(Short.MAX_VALUE, tb.getPreferredSize().height);
                        tb.setMaximumSize(d);
                        tb.setFloatable(false);
                        tb.setAlignmentX(JPanel.RIGHT_ALIGNMENT);
                        
                        tb.add(new ToolbarButton(actionAddFxSend));
                        tb.add(new ToolbarButton(actionRemoveFxSend));
                
                        return tb;
                }
        }
        
        public static class StreamVoiceCountPane extends JPanel {
                private final Channel channel;
                
                private final JLabel lStreams = createScreenLabel(" --");
                private final JLabel lSlash = createScreenLabel("/");
                private final JLabel lVoices = createScreenLabel("-- ");
                
                public
                StreamVoiceCountPane(Channel channel) {
                        this.channel = channel;
                        
                        setOpaque(false);
                        setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
                        lStreams.setFont(Res.fontScreenMono);
                        lStreams.setHorizontalAlignment(JLabel.RIGHT);
                        lStreams.setToolTipText(i18n.getLabel("Channel.streamVoiceCount"));
                        
                        Dimension d = lStreams.getPreferredSize();
                        lStreams.setMinimumSize(d);
                        lStreams.setPreferredSize(d);
                        lStreams.setMaximumSize(d);
                        add(lStreams);
                        
                        lSlash.setFont(Res.fontScreenMono);
                        lSlash.setToolTipText(i18n.getLabel("Channel.streamVoiceCount"));
                        add(lSlash);
                        
                        lVoices.setFont(Res.fontScreenMono);
                        lVoices.setToolTipText(i18n.getLabel("Channel.streamVoiceCount"));
                        
                        d = lStreams.getPreferredSize();
                        lVoices.setMinimumSize(d);
                        lVoices.setPreferredSize(d);
                        lVoices.setMaximumSize(d);
                        add(lVoices);
                        
                        lStreams.addMouseListener(channel.getContextMenu());
                        lSlash.addMouseListener(channel.getContextMenu());
                        lVoices.addMouseListener(channel.getContextMenu());
                }
                
                public void
                updateStreamCount(int count) {
                        lStreams.setText(count == 0 ? " --" : String.valueOf(count));
                }
                
                public void
                updateVoiceCount(int count) {
                        lVoices.setText(count == 0 ? "-- " : String.valueOf(count));
                }
        }
        
        public static class VolumePane extends JPanel {
                private final Channel channel;
                private final JButton btnVolume = createScreenButton("");
                private JSVolumeEditorPopup popupVolume;
                
                private static NumberFormat numberFormat = NumberFormat.getInstance();
                static { numberFormat.setMaximumFractionDigits(1); }
                
                public
                VolumePane(final Channel channel) {
                        this.channel = channel;
                        setOpaque(false);
                        setLayout(new BoxLayout(this, BoxLayout.X_AXIS));
                        
                        btnVolume.setIcon(Res.iconVolume14);
                        btnVolume.setIconTextGap(2);
                        btnVolume.setAlignmentX(RIGHT_ALIGNMENT);
                        btnVolume.setHorizontalAlignment(btnVolume.LEFT);
                        updateVolumeInfo(100);
                        Dimension d = btnVolume.getPreferredSize();
                        d.width = 57;
                        btnVolume.setPreferredSize(d);
                        btnVolume.setMinimumSize(d);
                        
                        add(btnVolume);
                        
                        btnVolume.addActionListener(new ActionListener() {
                                public void
                                actionPerformed(ActionEvent e) {
                                        if(popupVolume.isVisible()) {
                                                popupVolume.commit();
                                                popupVolume.hide();
                                        } else {
                                                float vol = channel.getModel().getChannelInfo().getVolume();
                                                popupVolume.setCurrentVolume(vol);
                                                popupVolume.show();
                                        }
                                }
                        });
                        
                        popupVolume = new JSVolumeEditorPopup(btnVolume, VolumeType.CHANNEL);
                        
                        popupVolume.addActionListener(new ActionListener() {
                                public void
                                actionPerformed(ActionEvent e) {
                                        channel.getModel().setBackendVolume(popupVolume.getVolumeFactor());
                                }
                        });
                        
                        btnVolume.addMouseListener(channel.getContextMenu());
                }
                
                public void
                updateVolumeInfo(int volume) {
                        if(CC.getViewConfig().isMeasurementUnitDecibel()) {
                                String s = numberFormat.format(HF.percentsToDecibels(volume));
                                btnVolume.setText(s + "dB");
                        } else {
                                btnVolume.setText(String.valueOf(volume) + "%");
                        }
                }
        }
        
        public static class PowerButton extends PixmapToggleButton implements ActionListener {
                private final Channel channel;
                
                PowerButton(Channel channel) {
                        this(channel, Res.gfxPowerOff, Res.gfxPowerOn);
                }
                
                PowerButton(Channel channel, ImageIcon defaultIcon, ImageIcon selectedIcon) {
                        super(defaultIcon, selectedIcon);
                        
                        this.channel = channel;
                
                        setSelected(true);
                        addActionListener(this);
                        setToolTipText(i18n.getButtonLabel("Channel.ttRemoveChannel"));
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        boolean b = preferences().getBoolProperty(CONFIRM_CHANNEL_REMOVAL);
                        if(b) {
                                String s = i18n.getMessage("Channel.remove?", channel.getChannelId());
                                if(!HF.showYesNoDialog(channel, s)) {
                                        setSelected(true);
                                        return;
                                }
                        }
                        channel.remove();
                }
                
                @Override
                public boolean
                contains(int x, int y) { return (x - 11)*(x - 11) + (y - 11)*(y - 11) < 71; }
        }
        
        public static class OptionsButton extends PixmapToggleButton
                                        implements ActionListener, PropertyChangeListener {
                
                private final Channel channel;
                
                OptionsButton(Channel channel) {
                        super(Res.gfxOptionsOff, Res.gfxOptionsOn);
                        
                        this.channel = channel;
                        
                        setRolloverIcon(Res.gfxOptionsOffRO);
                        this.setRolloverSelectedIcon(Res.gfxOptionsOnRO);
                        addActionListener(this);
                        setToolTipText(i18n.getButtonLabel("Channel.ttShowOptions"));
                }
                
                @Override
                public void
                actionPerformed(ActionEvent e) {
                        ChannelView view = channel.viewTracker.getCurrentView();
                        
                        if(isSelected() && view.getChannelOptionsView() == null) {
                                view.installChannelOptionsView();
                                JComponent c = view.getChannelOptionsView().getComponent();
                                channel.optionsPane.setContentPane(c);
                        }
                        
                        channel.showOptionsPane(isSelected());
                        
                        String s;
                        if(isSelected()) s = i18n.getButtonLabel("Channel.ttHideOptions");
                        else s = i18n.getButtonLabel("Channel.ttShowOptions");
                        
                        setToolTipText(s);
                        
                        s = JXCollapsiblePane.ANIMATION_STATE_KEY;
                        channel.optionsPane.addPropertyChangeListener(s, this);
                }
                
                @Override
                public void
                propertyChange(PropertyChangeEvent e) {
                        if(e.getNewValue() == "collapsed") {
                                ChannelView view = channel.viewTracker.getCurrentView();
                                view.uninstallChannelOptionsView();
                                channel.optionsPane.setContentPane(new JPanel());
                        }
                }
                
                public void
                onDestroy() {
                        String s = JXCollapsiblePane.ANIMATION_STATE_KEY;
                        channel.optionsPane.removePropertyChangeListener(s, this);
                }
                
                @Override
                public boolean
                contains(int x, int y) { return super.contains(x, y) & y < 13; }
        }
}

class ChannelOptionsPane extends JXCollapsiblePane {
        ChannelOptionsPane() {
                setAnimated(false);
                setCollapsed(true);
                setAnimated(preferences().getBoolProperty(ANIMATED));
                
                preferences().addPropertyChangeListener(ANIMATED, new PropertyChangeListener() {
                        public void
                        propertyChange(PropertyChangeEvent e) {
                                setAnimated(preferences().getBoolProperty(ANIMATED));
                        }
                });
        }
        
        public void
        showOptionsPane(boolean show) { setCollapsed(!show); }
}