magnifying the image onFocus

I have field custom button

That is to say

public class custButton extends the scope {}
private bitmap Bitmap;
bitmapHighlight private bitmap;
currentPicture private bitmap;
private String label;
Private boolean stressed = false;

public custButton (String text, image bitmap Bitmap, Bitmap bitmapHighlight, long style) {}
Super (style);
label = text;
This.Bitmap = bitmap;
this.bitmapHighlight = bitmapHighlight;
this.currentPicture = bitmap;
}

public String getText()
{
return the label;
}

public int getPreferredHeight() {}
Return currentPicture.getHeight ();
}
public int getPreferredWidth() {}
Return currentPicture.getWidth ();
}

Protected Sub layout (int width, int height) {}
setExtent
((Width, getPreferredWidth()) Math.min Math.min (height,)
getPreferredHeight()));
}

protected void onFocus (int direction) {}
super.onFocus (branch);
currentPicture = bitmapHighlight;
Invalidate();
}
protected void onUnfocus() {}
super.onUnfocus ();
currentPicture = bitmap;
Invalidate();
}

public boolean isFocusable() {}
Returns true;
}

protected void drawFocus (Graphics graphics, boolean on) {}
}

protected boolean navigationClick (int status, int time)
{
fieldChangeNotify (0);
Returns true;
}

protected void paint (Graphics graphics) {}
imageY = int (getHeight() - getPreferredHeight()) / 2;

graphics.setColor (Color.LIGHTPINK);
graphics.fillRect (0, 0, getWidth(), getHeight());
graphics.drawBitmap (0, 0, getPreferredWidth(), getPreferredHeight(), currentPicture, 0, 0);

}
}

I want the smallest image should be replaced with the bigger picture and when I move the cursor over the "custButton.

What happens on the screen when the cursor is over the image?

You get errors?

A small error I see in your code is in the page layout function.

You determine the dimensions of the measure without updating the preferred size. Then in the paint function, you use the getPreferredXXX functions without using the actual size, that you used for the setExtent function.

E.

Tags: BlackBerry Developers

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