/* * @(#)VideoCanvas.java	1.6 04/03/10 * * Copyright (c) 2000-2004 Sun Microsystems, Inc. All rights reserved. * PROPRIETARY/CONFIDENTIAL * Use is subject to license terms */package example.mmademo;import javax.microedition.midlet.*;import javax.microedition.lcdui.*;import javax.microedition.media.*;import javax.microedition.media.control.*;import java.io.*;/** * Play/Capture Video in a Canvas * */public class VideoCanvas extends Canvas    implements Runnable, CommandListener, PlayerListener {    private static Player player = null;    private static boolean isCapturePlayer;    private int idx = 0;    private boolean fsmode = false;    private Display parentDisplay;    private long duration;    private long lastTime = -1;    private Thread sliderThread;    private Command     backCommand       = new Command("Back",                                                        Command.BACK, 1);    private Command     playCommand       = new Command("Play",                                                        Command.ITEM, 1);    private Command     snapCommand       = new Command("Snapshot",                                                        Command.ITEM, 1);    private Command     pauseCommand       = new Command("Pause",                                                         Command.ITEM, 10);    private VolumeControl vc;    private RateControl rc;    private VideoControl vidc;    private FramePositioningControl fpc;    private int CB_Y = 0;   // Control Bar Y location    private static final int CB_H = 8;   // Control Bar Height    private static final int TH_W = 6;   // Slider Thumb Width    private static final int VB_W = 10;  // Video Border Width    private static final int VB_H = 8;   // Video Border Height        private boolean vis = true;    private int canvasW;    // Canvas Width    private int canvasH;    // Canvas Height    private int videoW;     // Video Display Area Width    private int videoH;     // Video Display Area Height    // pause/resume support    private boolean suspended = false;    private boolean restartOnResume = false;    private long restartMediaTime;    public VideoCanvas(Display parentDisplay) {        this.idx = 0;        this.parentDisplay = parentDisplay;	canvasW = getWidth();	canvasH = getHeight();	CB_Y = canvasH - CB_H - VB_H - 20;	videoW = canvasW - VB_W * 2;	videoH = CB_Y - VB_H * 2;        initialize();    }    public void paint(Graphics g) {        // Only video player uses the screen in fullscreen mode        if (fsmode) return;        // Draw the GUI and media time slider        g.setColor(0x9090E0);        g.fillRect(0, 0, canvasW, canvasH);        g.setColor(0x202050);        //Video Border        g.drawLine(VB_W - 1, VB_H - 1, videoW + VB_W - 1, VB_H - 1);        g.drawLine(VB_W - 1, VB_H - 1, VB_W - 1, videoH + VB_H - 1);        //Control Bar        if (sliderThread != null) {            g.drawLine(VB_W - 1, CB_Y, videoW + VB_W - 1, CB_Y);            g.drawLine(VB_W - 1, CB_Y, VB_W - 1, CB_Y + CB_H);        }        g.setColor(0xD0D0FF);        //Video Border        g.drawLine(videoW + VB_W, VB_H, videoW + VB_W, videoH + VB_H);        g.drawLine(videoW + VB_W, videoH + VB_H, VB_W, videoH + VB_H);        //Control Bar        if (sliderThread != null) {            g.drawLine(videoW + VB_W, CB_Y + 1,		       videoW + VB_W, CB_Y + CB_H + 1);            g.drawLine(videoW + VB_W, CB_Y + CB_H + 1,		       VB_H, CB_Y + CB_H + 1);        }        if (sliderThread != null) {            int p = time2pix(lastTime);            g.drawLine(VB_W + p, CB_Y + 1, VB_W + p, CB_Y + CB_H);            g.drawLine(VB_W + p, CB_Y + 1, VB_W + p + TH_W - 1, CB_Y + 1);            g.setColor(0x202050);            g.drawLine(VB_W + p + 1, CB_Y + CB_H, VB_W + p + TH_W, CB_Y + CB_H);            g.drawLine(VB_W  + p + TH_W, CB_Y + CB_H,		       VB_W + p + TH_W, CB_Y + 1);            g.setColor(0xA0A0FF);            g.fillRect(VB_W + p + 1, CB_Y + 2, TH_W - 2, CB_H - 2);            g.setColor(0);            g.drawString("00:00", VB_W, CB_Y + CB_H + 4,			 Graphics.TOP | Graphics.LEFT);            g.drawString(time2String(lastTime) + "/" + time2String(duration),                         VB_W + videoW, CB_Y + CB_H + 4,                         Graphics.TOP | Graphics.RIGHT);        }    }    private void initialize() {        addCommand(backCommand);        addCommand(snapCommand);        setCommandListener(this);    }    private int time2pix(long time) {        int t2p = (int) ((time * (videoW - 1 - TH_W)) / duration);        return t2p;    }    private String time2String(long time) {        time = time / 1000000;        String strTime = "" + (time % 10);        time = time / 10;        strTime = (time % 6) + strTime;        time = time / 6;        strTime = (time % 10) + ":" + strTime;        time = time / 10;        strTime = (time % 6) + strTime;        time = time / 6;        return strTime;    }    public void run() {        while (player != null) {            try {                long time = player.getMediaTime();                if (time2pix(time) != time2pix(lastTime)) {                    lastTime = time;                    repaint(VB_W - 2, CB_Y,			    videoW + 2, CB_H + 2 + 20);                }		// sleep for 250 millis		// if suspended, sleep until the MIDlet is restarted                do {		    Thread.sleep(250);		} while (player != null && suspended);            } catch (Exception e) {		System.err.println("In run(): "+e);                break;            }	}    }    /*     * Respond to commands, including back     */    public void commandAction(Command c, Displayable s) {        if (s == this) {            if (c == backCommand) {                close();                parentDisplay.setCurrent(VideoTest.getList());            } else if (vidc != null && c == snapCommand) {                doSnapshot();            } else if (vidc == null && c == pauseCommand) {                removeCommand(pauseCommand);                addCommand(playCommand);                pause();            } else if (vidc == null && c == playCommand) {                start();                removeCommand(playCommand);                addCommand(pauseCommand);            }        }    }    /*     * Process clicking in slider region     */    protected void pointerPressed(int x, int y) {        if (duration == Player.TIME_UNKNOWN || isCapturePlayer)            return;        if (y >= CB_Y && y < CB_Y + CB_H) {            if (x >= VB_W - 2 && x <= VB_W - 2 + videoW) {                x = x - (VB_W + 1);                if (x < 0)		    x = 0;                if (x > videoW - TH_W)                    x = videoW - TH_W;                long time = (duration * x) / (videoW - TH_W);                try {                    player.setMediaTime(time);                } catch (MediaException me) {		    System.out.println(me);                }            }        }    }    protected void pointerDragged(int x, int y) {        pointerPressed(x, y);    }    public void open(String url) {        try {            synchronized (this) {                if ( player == null ) {                    if (url.startsWith("resource:")) {                        InputStream ins = getClass().getResourceAsStream(url.substring(9));			String ct = Utils.guessContentType(url);                        player = Manager.createPlayer(ins, ct);                    } else {                        player = Manager.createPlayer(url);                    }                    player.addPlayerListener(this);		    isCapturePlayer = url.startsWith("capture:");                }            }            player.realize();            if ((vidc = (VideoControl) player.getControl("VideoControl")) != null) {                vidc.initDisplayMode(VideoControl.USE_DIRECT_VIDEO, this);		int frameW = vidc.getSourceWidth();		int frameH = vidc.getSourceHeight();		// Clip the video to available area		if (frameW > videoW)		    frameW = videoW;		if (frameH > videoH)		    frameH = videoH;		int frameX = (videoW - frameW) / 2 + VB_W;		int frameY = (videoH - frameH) / 2 + VB_H;                vidc.setDisplayLocation(frameX, frameY);                vidc.setDisplaySize(frameW, frameH);                vidc.setVisible(true);            }            Control [] controls = player.getControls();            for (int i = 0; i < controls.length; i++) {                if (controls[i] instanceof VolumeControl)                    vc = (VolumeControl) controls[i];                if (controls[i] instanceof RateControl)                    rc = (RateControl) controls[i];                if (controls[i] instanceof FramePositioningControl)                    fpc = (FramePositioningControl) controls[i];            }            player.prefetch();