Bug 152555

Description Pavel Repkin 2006-08-02 02:52:30 EDT

The following sample code illustrates the problem we experience in our product while working with half transparent Figures.
The problem is that a text is written in a bold style, though the current font style is plain.


import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.draw2d.*;
import org.eclipse.draw2d.geometry.PointList;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.draw2d.geometry.Point;
public class Main {
    public static void main(String args[]) {
        Shell shell = new Shell();
        shell.setSize(400, 400);
        shell.setLayout(new FillLayout());
        
        FigureCanvas canvas = new FigureCanvas(shell);
        canvas.setBackground(ColorConstants.white);
        canvas.setContents(new Figure() {
            public void paint(Graphics g) {
//Draw some text in bold
                Font oldFont = g.getFont();
                g.setFont(new Font(null, "Arial", 8, SWT.BOLD));//Bug is not repeatable if this line removed
                g.drawString("apple", new Point(10, 50));
                g.setFont(oldFont); //Restore default font style

//Fill a rectangle and draw some text transparently
                g.pushState();
                g.setAlpha(128); //Bug is not repeatable if this line removed
                g.fillRectangle(10, 70, 100, 30); //Bug is not repeatable if this line removed
                g.drawString("orange", new Point(10, 70));
                g.popState();
//Draw the last piece of text.
//The text is unexpectedly written in bold.
                g.drawString("banana", new Point(10, 90));
            }
        });
        
        shell.layout();
        shell.open();
        
        Display display = Display.getDefault();
        while(!shell.isDisposed())
            if (!display.readAndDispatch())
                display.sleep();
        display.dispose();
    }
}