public void translate(double tx, double ty) {
if (_transform == null) {
_transform = new Transform(_gc.getDevice());
}
_transform.translate((int) tx, (int) ty);
_gc.setTransform(_transform);
if (_clippingArea != null) {
AffineTransform t = new AffineTransform();
t.translate(-tx, -ty);
_clippingArea.transform(t);
}
}
public void setClip(Shape s) {
Path path = convertToPath(s);
if (path == null) {
_gc.setClipping((Rectangle) null);
} else {
_gc.setClipping(path);
}
if (_clippingPath != null) {
_clippingPath.dispose();
}
_clippingPath = path;
_clippingArea = (s == null ? null : new Area(s));
}
public void setStroke(Stroke s) {
_stroke = s;
/*
* Code borrowed from SwingWT
*/
if (s == null) {
_gc.setLineWidth(1);
_gc.setLineCap(SWT.CAP_SQUARE);
_gc.setLineJoin(SWT.JOIN_MITER);
_gc.setLineDash(null);
return;
}
if (!(s instanceof BasicStroke)) {
return;
}
BasicStroke bs = (BasicStroke) s;
// Setup the line width
_gc.setLineWidth((int) bs.getLineWidth());
// Setup the line cap
int gcCap = SWT.CAP_SQUARE;
switch (bs.getEndCap()) {
case BasicStroke.CAP_BUTT:
gcCap = SWT.CAP_FLAT;
break;
case BasicStroke.CAP_ROUND:
gcCap = SWT.CAP_ROUND;
break;
case BasicStroke.CAP_SQUARE:
gcCap = SWT.CAP_SQUARE;
break;
}
_gc.setLineCap(gcCap);
// Setup the line Join
int gcJoin = SWT.JOIN_MITER;
switch (bs.getLineJoin()) {
case BasicStroke.JOIN_BEVEL:
gcJoin = SWT.JOIN_BEVEL;
break;
case BasicStroke.JOIN_MITER:
gcJoin = SWT.JOIN_MITER;
break;
case BasicStroke.JOIN_ROUND:
gcJoin = SWT.JOIN_ROUND;
}
_gc.setLineJoin(gcJoin);
float d[] = bs.getDashArray();
int[] dashes = new int[d.length];
for (int i = 0; i < d.length; i++) {
dashes[i] = (int) d[i];
}
_gc.setLineDash(dashes);
}
public void setColor(java.awt.Color color) {
if (color.equals(_awt_color)) {
return;
}
Color col = new Color(_gc.getDevice(), color.getRed(), color.getGreen(), color.getBlue());
_gc.setForeground(col);
_gc.setBackground(col);
_gc.setAlpha(color.getAlpha());
if (_color != null) {
_color.dispose();
}
_color = col;
_awt_color = color;
}
/** Clean used resources. */
public void clean() {
if (_clippingPath != null) {
_gc.setClipping((Rectangle) null);
_clippingPath.dispose();
_clippingPath = null;
_clippingArea = null;
}
if (_color != null) {
_color.dispose();
_color = null;
}
if (_transform != null) {
_gc.setTransform(null);
_transform.dispose();
}
}
/**
* Convert an AWT Shape to an SWT Path.
*
* @param shape
* @return the SWT Path or <code>null</code> if <code>shape == null</code>
*/
private Path convertToPath(Shape shape) {
if (shape == null) {
return null;
}
Path path = new Path(_gc.getDevice());
PathIterator iter = shape.getPathIterator(null);
float[] coords = new float[6];
while (!iter.isDone()) {
int op = iter.currentSegment(coords);
switch (op) {
case PathIterator.SEG_MOVETO:
path.moveTo(coords[0], coords[1]);
break;
case PathIterator.SEG_LINETO:
path.lineTo(coords[0], coords[1]);
break;
case PathIterator.SEG_QUADTO:
path.quadTo(coords[0], coords[1], coords[2], coords[3]);
break;
case PathIterator.SEG_CUBICTO:
path.cubicTo(coords[0], coords[1], coords[2], coords[3], coords[4], coords[5]);
break;
case PathIterator.SEG_CLOSE:
path.close();
break;
}
iter.next();
}
return path;
}
public void setRenderingHint(Key key, Object value) {
if (RenderingHints.KEY_ANTIALIASING.equals(key)) {
int antialias = SWT.DEFAULT;
if (RenderingHints.VALUE_ANTIALIAS_OFF.equals(value)) {
antialias = SWT.OFF;
} else if (RenderingHints.VALUE_ANTIALIAS_ON.equals(value)) {
antialias = SWT.ON;
}
_gc.setAntialias(antialias);
}
}
public Object getRenderingHint(Key key) {
if (RenderingHints.KEY_ANTIALIASING.equals(key)) {
switch (_gc.getAntialias()) {
case SWT.DEFAULT:
return RenderingHints.VALUE_ANTIALIAS_DEFAULT;
case SWT.OFF:
return RenderingHints.VALUE_ANTIALIAS_OFF;
case SWT.ON:
return RenderingHints.VALUE_ANTIALIAS_ON;
}
}
return null;
}
public void setFont(FSFont font) {
_gc.setFont(((SWTFSFont) font).getSWTFont());
}
public void fillOval(int x, int y, int width, int height) {
_gc.fillOval(x, y, width, height);
}
public void fillRect(int x, int y, int width, int height) {
_gc.fillRectangle(x, y, width, height);
}
public void fill(Shape s) {
Path p = convertToPath(s);
_gc.fillPath(p);
p.dispose();
}
public void drawRect(int x, int y, int width, int height) {
_gc.drawRectangle(x, y, width, height);
}
public void drawOval(int x, int y, int width, int height) {
_gc.drawOval(x, y, width, height);
}
public void drawImage(FSImage image, int x, int y) {
Image img = ((SWTFSImage) image).getImage();
if (img == null) {
int width = image.getWidth();
int height = image.getHeight();
Color oldBG = _gc.getBackground();
Color oldFG = _gc.getForeground();
_gc.setBackground(_gc.getDevice().getSystemColor(SWT.COLOR_WHITE));
_gc.setForeground(_gc.getDevice().getSystemColor(SWT.COLOR_BLACK));
_gc.fillRectangle(x, y, width, height);
_gc.drawRectangle(x, y, width, height);
_gc.drawLine(x, y, x + width - 1, y + height - 1);
_gc.drawLine(x, y + height - 1, x + width - 1, y);
_gc.setBackground(oldBG);
_gc.setForeground(oldFG);
} else {
Rectangle bounds = img.getBounds();
_gc.drawImage(
img, 0, 0, bounds.width, bounds.height, x, y, image.getWidth(), image.getHeight());
}
}
protected void drawLine(int x1, int y1, int x2, int y2) {
_gc.drawLine(x1, y1, x2, y2);
}