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| 18. 14. 6. 绘制字符串和处理换行符，扩大标签 |
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void drawText(String text, int x, int y, int flags)
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Uses the rules specified by flags. |
| Constant | Description | | SWT.DRAW_DELIMITER | Processes newlines by drawing subsequent characters on the next line. | | SWT.DRAW_TAB | Processes tabs by displaying a gap between surrounding characters. | | SWT.DRAW_MNEMONIC | Draws an underline beneath the mnemonic character-the character preceded by an ampersand (&). Use this when drawing menus. | | SWT.DRAW_TRANSPARENT | With a transparent background: |
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import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Canvas;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class DrawTextUnderLineSWT {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Canvas Example");
shell.setLayout(new FillLayout());
Canvas canvas = new Canvas(shell, SWT.NONE);
canvas.addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
e.gc.drawText("www.\n&java2s\t.com", 5, 5, SWT.DRAW_MNEMONIC | SWT.DRAW_DELIMITER
| SWT.DRAW_TAB | SWT.DRAW_TRANSPARENT);
}
});
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}
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