default skin for the button class spark

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  Hello

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  package mypackage;
  
  import net.rim.device.api.ui.Field;
  import net.rim.device.api.ui.FieldChangeListener;
  import net.rim.device.api.ui.component.ButtonField;
  import net.rim.device.api.ui.component.Dialog;
  
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      }
  
  }
  

  package mypackage;
  
  import java.util.Timer;
  import java.util.TimerTask;
  import java.util.Vector;
  
  import net.rim.device.api.ui.Field;
  import net.rim.device.api.ui.Graphics;
  import net.rim.device.api.ui.XYRect;
  import net.rim.device.api.ui.container.MainScreen;
  
  public class TooltipScreen extends MainScreen {
  
      TooltipScreen screen = this;
      boolean doRedraw = false;//prevent infinte redrawing
      Vector tooltips = new Vector();//vector to hold tooltip strings
      private Timer tooltipTimer = new Timer();
      private TimerTask tooltipTask;
      boolean alive = false;//is the tooltip alive? used to pop it after our timeout
      int count = 0;//used to calculate time tooltip is displayed
      //tooltip popup colours:
      int backgroundColour = 0xeeeeee;
      int borderColour = 0xaaaaaa;
      int fontColour = 0x666666;
      //the tooltip:
      String tooltip;
      int tooltipWidth;
      int yCoord;
      int xCoord;
      //region parameters:
      XYRect contentArea;
      int contentBottom;
      int contentRight;
  
      public TooltipScreen() {
          super();
  
          //when timeout reaches 100ms*20 ie. 2seconds set alive to false and redraw screen:
          tooltipTask = new TimerTask() {
  
              public void run() {
                  if (alive) {
                      count++;
                      if (count == 20) {
                          alive = false;
                          invalidate();
                      }
                  }
              }
          };
  
          tooltipTimer.scheduleAtFixedRate(tooltipTask, 100, 100);
  
      }
  
      //override add method adds an empty string to tooltip vector:
      public void add(Field field) {
          tooltips.addElement("");
          super.add(field);
      }
  
      //custom add method for fields with tooltip: add(myField, "myTooltip");
      public void add(Field field, String tooltip) {
          super.add(field);
          tooltips.addElement(tooltip);
      }
  
      public void setColours(int backgroundColour, int borderColour, int fontColour) {
          this.backgroundColour = backgroundColour;
          this.borderColour = borderColour;
          this.fontColour = fontColour;
      }
  
      //reset everything when user changes focus,
      //possibly needs logic to check field has actually changed (for listfields, objectchoicefields etc etc)
      protected boolean navigationMovement(int dx, int dy, int status, int time) {
          count = 0;
          alive = true;
          doRedraw = true;
          return super.navigationMovement(dx, dy, status, time);
      }
  
      protected void paint(Graphics graphics) {
          super.paint(graphics);
          if (alive) {
              Field focusField = getFieldWithFocus();
              tooltip = (String) tooltips.elementAt(screen.getFieldWithFocusIndex());
  
              //don't do anything outside the norm unless this field has a tooltip:
              if (!tooltip.equals("")) {
                  //get the field content region, this may fall inside the field actual region/coordinates:
                  contentArea = focusField.getContentRect();
                  contentBottom = contentArea.y + contentArea.height;
                  contentRight = contentArea.x + contentArea.width;
  
                  //+4 to accomodate 2 pixel padding on either side:
                  tooltipWidth = graphics.getFont().getAdvance(tooltip) + 4;
  
                  yCoord = contentBottom - focusField.getManager().getVerticalScroll();
                  //check the tooltip is being drawn fully inside the screen height:
                  if (yCoord > (getHeight() - 30)) {
                      yCoord = getHeight() - 30;
                  }
  
                  //check the tooltip doesn't get drawn off the right side of the screen:
                  if (contentRight + tooltipWidth < getWidth()) {
                      xCoord = contentRight;
                  } else {
                      xCoord = getWidth() - tooltipWidth;
                  }
  
                  //draw the tooltip
                  graphics.setColor(backgroundColour);
                  graphics.fillRect(xCoord, yCoord, tooltipWidth, 30);
                  graphics.setColor(borderColour);
                  graphics.drawRect(xCoord, yCoord, tooltipWidth, 30);
                  graphics.setColor(fontColour);
                  graphics.drawText(tooltip, xCoord + 2, yCoord);
              }
          }
          //doRedraw logic prevents infinite loop
          if (doRedraw) {
              //System.out.println("redrawing screen: " + System.currentTimeMillis());
              screen.invalidate();
              doRedraw = false;
          }
      }
  }
  

  package mypackage;
  
  import net.rim.device.api.ui.Font;
  import net.rim.device.api.ui.Graphics;
  import net.rim.device.api.ui.Manager;
  import net.rim.device.api.ui.UiApplication;
  import net.rim.device.api.ui.component.LabelField;
  import net.rim.device.api.ui.container.PopupScreen;
  import net.rim.device.api.ui.container.VerticalFieldManager;
  
  class MyTooltip extends PopupScreen{
      int _x;
      int _y;
      TooltipThread _tooltipThread;
  
      private MyTooltip(Manager manager) {
          super(manager);
       }
      public void sublayout(int width, int height)    {
          super.sublayout(width,height);
          setPosition(_x,_y);
          System.out.println("Tooltip x: " + Integer.toString(_x) + ", y: " + Integer.toString(_y));
      }
      protected void applyTheme() {
          // Overriden to suppress Border etc.
      }
      public void removeToolTip() {
          if ( _tooltipThread != null ) {
              _tooltipThread.dismiss();
          }
      }
      private void display(UiApplication uiApp, int x, int y, int displayTime) {
          _x = x;
          _y = y;
          _tooltipThread = new TooltipThread(uiApp, this, displayTime);
          _tooltipThread.start();
      }
  
      public static MyTooltip addToolTip(UiApplication uiApp, String toolTipString, int x, int y, int displayTime) {
          VerticalFieldManager manager = new VerticalFieldManager(Manager.FIELD_VCENTER|Manager.NON_FOCUSABLE) {
              protected void paint(Graphics graphics) {
                  graphics.setColor(0x00FFFFFF); // White
                  graphics.fillRect(0,0,getWidth(),getHeight());
                  graphics.setColor(0x00000000); // Black
                  graphics.drawRect(0,0,getWidth(),getHeight());
                  super.paint(graphics);
              }
          };
          MyTooltip toolTip = new MyTooltip(manager);
          LabelField label = new LabelField(' ' + toolTipString + ' ', LabelField.NON_FOCUSABLE);
          label.setFont(Font.getDefault().derive(Font.PLAIN, 16));
          toolTip.add(label);
          toolTip.display(uiApp, x, y, displayTime);
          return toolTip;
      }
  
      class TooltipThread extends Thread {
  
          Object _notifyObject = new Object(); // Used to allow user to dismiss this Tooltip
          PopupScreen _tooltip; // Screen we are going to display
          UiApplication _ourApplication; // access to pushGlobalScreen and dismissStatus from our Application
          int _displayTime; // in seconds
  
          public TooltipThread(UiApplication ourApplication, PopupScreen tooltip, int displayTime) {
              _tooltip = tooltip;
              _ourApplication = ourApplication;
              _displayTime = displayTime;
          }
  
          public void run() {
              _ourApplication.pushGlobalScreen(_tooltip, 999, false);
              synchronized(_notifyObject) {
                  try {
                      _notifyObject.wait(_displayTime * 1000);
                  } catch (Exception e) {
                  }
              };
              _ourApplication.dismissStatus(_tooltip);
          }
  
          public void dismiss() {
              // notify the waiting object to stop the Thread waiting
              synchronized(_notifyObject) {
                  _notifyObject.notify();
              }
          }
  
      }
  
  }
  

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