Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Gradient Fills in SWT
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| Re: Gradient Fills in SWT [message #465560 is a reply to message #455959] |
Thu, 15 December 2005 11:34  |
Eclipse User |
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Originally posted by: waldimiro.hotmail.com
try this...
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
/**
* AdvancedPath
*
* @author Waldimiro Rossi
* @version 1.0
* @since 15.12.2005
* @see Path
*/
public class AdvancedPath extends Path {
/**
* Contructor
* @param device
*/
public AdvancedPath(Device device) {
super(device);
}
/**
* Adds to the receiver the circle specified by x, y, radius
*
* @param x the x coordinate of the rectangle to add
* @param y the y coordinate of the rectangle to add
* @param radius the width of the radius
*
* @exception SWTException <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public void addCircle(float x, float y, float radius) {
if (this.isDisposed()) {
SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
}
this.addArc(x, y, radius, radius, 0, 360);
}
/**
* Adds to the receiver the round-cornered rectangle specified by x, y, width and height.
*
* @param x the x coordinate of the rectangle to add
* @param y the y coordinate of the rectangle to add
* @param width the width of the rectangle to add
* @param height the height of the rectangle to add
* @param arcWidth the width of the arc
* @param arcHeight the height of the arc
* @exception SWTException <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed</li>
* </ul>
*/
public void addRoundRectangle(float x, float y, float width, float height, float arcWidth, float arcHeight) {
if (this.isDisposed()) {
SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
}
float cx = 0;
float cy = 0;
// Top left corner
cx = x;
cy = y;
this.cubicTo(cx, cy, cx, cy, x, y + arcHeight);
this.cubicTo(cx, cy, cx, cy, x + arcWidth, y);
// Top right corner
cx = width;
cy = y;
this.cubicTo(cx, cy, cx, cy, width - arcWidth, y);
this.cubicTo(cx, cy, cx, cy, width, y + arcHeight);
// Bottom right corner
cx = width;
cy = height;
this.cubicTo(cx, cy, cx, cy, width, height - arcHeight);
this.cubicTo(cx, cy, cx, cy, width - arcWidth, height);
// Bottom left corner
cx = x;
cy = height;
this.cubicTo(cx, cy, cx, cy, x + arcWidth, height);
this.cubicTo(cx, cy, cx, cy, x, height - arcHeight);
}
}
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