public void adjustmentValueChanged(AdjustmentEvent evt) {
// chamado quando o usu�rio modifica o valor de uma das
// barras de rolagem
int r = redScroll.getValue();
int g = greenScroll.getValue();
int b = blueScroll.getValue();
redLabel.setText(" R = " + r);
greenLabel.setText(" G = " + g);
blueLabel.setText(" B = " + b);
colorCanvas.setBackground(new Color(r, g, b));
colorCanvas.repaint();
// Redraw the canvas in its new color.
} // end adjustmentValueChanged
protected void loop() throws Exception {
while (isShowing()) {
if (!paused) {
buffer.clear(java.awt.Color.BLACK);
world.renderScene(buffer);
world.draw(buffer);
camera.performMovement();
buffer.update();
buffer.display(canvas.getGraphics());
canvas.repaint();
if (System.currentTimeMillis() - startTime >= delay) {
startTime = System.currentTimeMillis();
wb.update();
}
}
this.requestFocus();
}
buffer.disableRenderer(IRenderer.RENDERER_OPENGL);
buffer.dispose();
dispose();
System.exit(0);
}
public void repaint() {
canvas.repaint();
}
/**
* Stop the generation of any previous page, and draw the new one.
*
* @param page the PDFPage to draw.
*/
public void showPage(PDFPage page) {
// stop drawing the previous page
if (currentPage != null && prevSize != null) {
currentPage.stop(prevSize.width, prevSize.height, prevClip);
}
// set up the new page
currentPage = page;
if (page == null) {
// no page
currentImage = null;
clip = null;
currentXform = null;
canvas.repaint();
} else {
// Reset highlight
highlight = null;
boolean resize = false;
int newW = Math.round(zoomFactor * page.getWidth());
int newH = Math.round(zoomFactor * page.getHeight());
// setSize(Math.round(zoomFactor*page.getWidth()), Math.round(zoomFactor*page.getHeight()));
Point sz = getSize();
if (sz.x != newW || sz.y != newH) {
sz.x = newW;
sz.y = newH;
resize = true;
}
if (sz.x + sz.y == 0) {
// no image to draw.
return;
}
// calculate the clipping rectangle in page space from the
// desired clip in screen space.
Rectangle2D useClip = clip;
if (clip != null && currentXform != null) {
useClip = currentXform.createTransformedShape(clip).getBounds2D();
}
Dimension pageSize = page.getUnstretchedSize(sz.x, sz.y, useClip);
ImageInfo info = new ImageInfo(pageSize.width, pageSize.height, useClip, null);
currentImage = new RefImage(pageSize.width, pageSize.height, BufferedImage.TYPE_INT_ARGB);
Rectangle rect = new Rectangle(0, 0, pageSize.width, pageSize.height);
PDFRenderer r =
new PDFRenderer(
page, ((BufferedImage) currentImage).createGraphics(), rect, useClip, Color.WHITE);
page.renderers.put(info, new WeakReference<PDFRenderer>(r));
// get the new image
/*currentImage = page.getImage(pageSize.width, pageSize.height,
useClip, this, true, false);*/
// calculate the transform from screen to page space
currentXform = page.getInitialTransform(pageSize.width, pageSize.height, useClip);
try {
currentXform = currentXform.createInverse();
} catch (NoninvertibleTransformException nte) {
System.out.println("Error inverting page transform!");
nte.printStackTrace();
}
prevClip = useClip;
prevSize = pageSize;
r.go(true);
if (r.getStatus() != Watchable.COMPLETED) return;
if (resize)
// Resize triggers repaint
setSize(
Math.round(zoomFactor * page.getWidth()), Math.round(zoomFactor * page.getHeight()));
else {
EventQueue.invokeLater(
new Runnable() {
@Override
public void run() {
// canvas.repaint();
}
});
}
}
}