?? platformcanvas.samsung
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package com.jmobilecore.ui.core;
import javax.microedition.lcdui.*;
/**
* Provides platform dependent settings for Samsung platform
*
* @author Greg Gridin
*/
abstract public class PlatformCanvas extends Canvas {
static public final byte PLATFORM_BARTEO = 1;
static public final byte PLATFORM_LG = 2;
static public final byte PLATFORM_MOTOROLA = 3;
static public final byte PLATFORM_MOTOROLA_V = 4;
static public final byte PLATFORM_NOKIA = 5;
static public final byte PLATFORM_NOKIA_30 = 6;
static public final byte PLATFORM_SIEMENS = 7;
static public final byte PLATFORM_SAMSUNG = 8;
static public final byte PLATFORM_SONYERICSSON = 9;
static public final byte PLATFORM_SUN_WTK = 10;
static public final byte PLATFORM = PLATFORM_SAMSUNG;
/**
* This class is created specifically for LG phones, which does not provide
* key press codes for soft buttons in Canvas
* This class imitates pressing of soft button key when corresponding command is received
*/
class LGSoftKeyListener implements CommandListener {
private Command leftCommand;
private Command rightCommand;
/**
* Constructs new <code>LGSoftKeyListener</code> instance.
*
* @param leftCommand - Command for the left soft key
* @param rightCommand - Command for the right soft key
*/
public LGSoftKeyListener(Command leftCommand, Command rightCommand) {
this.leftCommand = leftCommand;
this.rightCommand = rightCommand;
}
/**
* Imitates key press when correspondent command is received
*
* @param command - command event
* @param display - displayable object
*/
public void commandAction(Command command, Displayable display) {
if (display==null || command==null) return;
if (leftCommand != null && leftCommand.equals(command) && display instanceof ScreenCanvas) {
((ScreenCanvas)display).keyPressed(PlatformCanvas.KEY_SOFT_LEFT);
return;
}
if (rightCommand != null && rightCommand.equals(command) && display instanceof ScreenCanvas) {
((ScreenCanvas)display).keyPressed(PlatformCanvas.KEY_SOFT_RIGHT);
return;
}
}
} // class LGSoftKeyListener
public PlatformCanvas() {
Command leftCommand = new Command("", Command.CANCEL, 1);
Command rightCommand = new Command("", Command.OK, 1);
addCommand(leftCommand);
addCommand(rightCommand);
setCommandListener(new LGSoftKeyListener(leftCommand, rightCommand));
}
/**
* The width in pixels of a screen
*/
public static final int WIDTH;
/**
* The height in pixels of a screen
*/
public static final int HEIGHT;
/**
* Indicated whether the phone has hardware support for double buffering for screen painting
*/
public static final boolean DOUBLE_BUFFER = true;
static {
Canvas dummy = new Canvas() {
public void paint(Graphics g) {
}
};
WIDTH = dummy.getWidth();
HEIGHT = dummy.getHeight();
dummy = null;
}
/**
* "No-key" key code
*/
public static final int KEY_UNDEFINED = 0;
/**
* Key code for the UP game action.
*/
public static final int KEY_UP = -1;
/**
* Key code for the LEFT game action.
*/
public static final int KEY_LEFT = -3;
/**
* Key code for the RIGHT game action.
*/
public static final int KEY_RIGHT = -4;
/**
* Key code for the DOWN game action.
*/
public static final int KEY_DOWN = -2;
/**
* Key code for the FIRE game action.
*/
public static final int KEY_FIRE = -5;
/**
* Key code for left soft key
*/
public static final int KEY_SOFT_LEFT = -7;
/**
* Key code for right soft key
*/
public static final int KEY_SOFT_RIGHT = -6;
/**
* Key code for PHONE_ON key (green button)
*/
public static final int KEY_PHONE_ON = -10;
/**
* Key code for PHONE_OFF key (red button)
*/
public static final int KEY_PHONE_OFF = -11;
/**
* Key code for CLEAR key
*/
public static final int KEY_CLEAR = -8;
/**
* Key code for VOLUME UP key
*/
public static final int KEY_VOLUME_UP = KEY_UNDEFINED;
/**
* Key code for VOLUME DOWN key
*/
public static final int KEY_VOLUME_DOWN = KEY_UNDEFINED;
/**
* Key code for "fictitious" ENTER key
* Some phones does not have FIRE button, we have to find out the replacement
*/
public static final int KEY_ENTER = KEY_FIRE;
} // class PlatformCanvas
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