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Java Tutorial/SWT 2D Graphics/Color - История изменений
2026-04-21T22:40:41Z
История изменений этой страницы в вики
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http://www.jexp.ru/index.php?title=Java_Tutorial/SWT_2D_Graphics/Color&diff=2823&oldid=prev
в 17:44, 31 мая 2010
2010-05-31T17:44:26Z
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Admin: 1 версия
2010-05-31T15:18:18Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Changing Colors ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.events.PaintEvent;<br />
import org.eclipse.swt.events.PaintListener;<br />
import org.eclipse.swt.layout.FillLayout;<br />
import org.eclipse.swt.widgets.Canvas;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
public class GCColorChange {<br />
public static void main(String[] args) {<br />
final Display display = new Display();<br />
final Shell shell = new Shell(display);<br />
shell.setText("Canvas Example");<br />
shell.setLayout(new FillLayout());<br />
Canvas canvas = new Canvas(shell, SWT.NONE);<br />
canvas.addPaintListener(new PaintListener() {<br />
public void paintControl(PaintEvent e) {<br />
e.gc.setForeground(display.getSystemColor(SWT.COLOR_BLUE));<br />
e.gc.drawText("I"m in blue!",20,20); <br />
}<br />
});<br />
shell.open();<br />
while (!shell.isDisposed()) {<br />
if (!display.readAndDispatch()) {<br />
display.sleep();<br />
}<br />
}<br />
display.dispose();<br />
}<br />
}</source><br />
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<!-- end source code --><br />
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== Set GC background and foreground color ==<br />
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<!-- start source code --><br />
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<source lang="java"><br />
import org.eclipse.swt.SWT;<br />
import org.eclipse.swt.graphics.Color;<br />
import org.eclipse.swt.graphics.GC;<br />
import org.eclipse.swt.widgets.Display;<br />
import org.eclipse.swt.widgets.Shell;<br />
public class GCBackgroundForeground {<br />
public static void main(String[] args) {<br />
Display display = new Display();<br />
Shell shell = new Shell(display);<br />
shell.open();<br />
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Color white = display.getSystemColor(SWT.COLOR_WHITE);<br />
Color black = display.getSystemColor(SWT.COLOR_BLACK);<br />
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GC gc = new GC(shell);<br />
gc.setBackground(black);<br />
gc.setForeground(white);<br />
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gc.drawString("Test", 12, 12);<br />
gc.dispose();<br />
while (!shell.isDisposed()) {<br />
if (!display.readAndDispatch())<br />
display.sleep();<br />
}<br />
display.dispose();<br />
}<br />
}</source><br />
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<!-- end source code --></div>
Admin