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*/
package ui;
//import gvME.*;
import gvME.*;
import javax.microedition.lcdui.Alert;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
/**
*
* @author Matt Defenthaler
*/
public class DisplayManager {
gvME midlet;
private java.util.Hashtable __previousDisplayables = new java.util.Hashtable();
public DisplayManager(gvME midlet)
{
this.midlet = midlet;
}
/**
* Switches a current displayable in a display. The <code>display</code> instance is taken from <code>getDisplay</code> method. This method is used by all actions in the design for switching displayable.
* @param alert the Alert which is temporarily set to the display; if <code>null</code>, then <code>nextDisplayable</code> is set immediately
* @param nextDisplayable the Displayable to be set
*/
public void switchDisplayable(Alert alert, Displayable nextDisplayable) {//GEN-END:|5-switchDisplayable|0|5-preSwitch
// write pre-switch user code here
Display display = getDisplay();
Displayable __currentDisplayable = display.getCurrent();
if (__currentDisplayable != null && nextDisplayable != null) {
__previousDisplayables.put(nextDisplayable, __currentDisplayable);
}
if (alert == null) {
display.setCurrent(nextDisplayable);
} else {
display.setCurrent(alert, nextDisplayable);
}
}
/**
* Switches a display to previous displayable of the current displayable.
* The <code>display</code> instance is obtain from the <code>getDisplay</code> method.
*/
public void switchToPreviousDisplayable() {
Displayable __currentDisplayable = getDisplay().getCurrent();
if (__currentDisplayable != null) {
Displayable __nextDisplayable = (Displayable) __previousDisplayables.get(__currentDisplayable);
if (__nextDisplayable != null) {
switchDisplayable(null, __nextDisplayable);
}
}
}
public void vibrate(int millis)
{
Display.getDisplay(midlet).vibrate(millis);
}
/**
* Returns a display instance.
* @return the display instance.
*/
public Display getDisplay () {
return Display.getDisplay(midlet);
}
public void showMenu()
{
Display.getDisplay(midlet).setCurrent(gvME.getMenu());
}
}