| Код |
....
Canvas canvas = new Canvas(){
public void paint(Graphics g){
graphicsBI= bi.getGraphics(); // BufferedImage bi
graphicsCanvas=g;
getFarbe= ChessBoard.altFarbe;
//esli nikakaja figura ne aktivna:
if (Figuren.activeFigure.equals("")){
graphicsBI.drawImage(im, 0, 0, canvas); //im - zadnij fon
}else{
//esli figura aktivna:
imageFilterMethode(boardAltX, boardAltY); //<- metoda mertva. boardAltX, boardAltY - prostye koordinaty polja
}
figuren.risujFigury(graphicsBI, arrayImage, canvas); // Image []arrayImage
graphicsBI.dispose();
graphicsCanvas.drawImage(bi, 28, 3, canvas);
}
public boolean imageUpdate(Image img, int flags, int x, int y, int width, int height) {
if ((flags & ImageObserver.ALLBITS) != 0) {
synchronized(monitor) {
monitor.notify();
}
return false;
}
return true;
}
public void update(Graphics g){
paint(graphicsBI);
}
public void repaint(){}
};
....
canvas.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent e){
....
//esli figury mogut hodit':
if (figuren.erlaubt(feld, xCell, yCell)){
bi.getGraphics().drawImage(im, 0, 0, canvas); //im - zadnij fon
figuren.risujFigury(bi.getGraphics(), arrayImage, canvas);
bi.getGraphics().dispose();
//ne risuet: (v paint-e vse zamechatel'no pri pervom vyzove i pri smene aktivnogo okna)
//(!!!) pochemu?
graphicsCanvas.drawImage(bi, 28, 3, canvas);
}else{
ChessBoard.altFarbe = getFarbe;
// metoda mertva: (!!!) pochemu?
imageFilterMethode(koordinateX, koordinateY);
// (!!!) pochemu?
figuren.risujFigury(bi.getGraphics(), arrayImage, canvas);
bi.getGraphics().dispose();
//ne risuet: (v paint-e vse zamechatel'no pri pervom vyzove i pri smene aktivnogo okna)
graphicsCanvas.drawImage(bi, 28, 3, canvas);
}
....
// posle vnesenija korrektur s BufferedImage <- metoda mertva:
private void imageFilterMethode(int x, int y) {
//vyrezaem prjamougol'nik:
ImageFilter filter = new CropImageFilter(x-50, y-24, 80, 70); //x, y - to mesto, gde kliknuli:
Image myNewImage= createImage(new FilteredImageSource(im.getSource(), filter));
filter = new RGBImageFilter(){
public int filterRGB(int x, int y, int argb){
if (argb == getFarbe){
return 0xfff80c17; //nahodim nuzhnym nam zvet i prevrashaem ego v krasnyj:
}
return argb;
}
};
Image izmenenieZveta = createImage(new FilteredImageSource(myNewImage.getSource(), filter));
//sm. nizhe: (smysl - narisuj, potom kokazhi (inache ne uspeesh, libo morgnet dlja pol'zovatelja:))
threadMonitor(izmenenieZveta, canvas);
graphicsBI.drawImage(im, 0, 0, canvas);
graphicsBI.drawImage(izmenenieZveta, x-50, y-24, canvas);
bi.getGraphics().dispose();
//nichego ne proishodit, (!!!) pochemu?
graphicsCanvas.drawImage(bi, 28, 3, canvas);
}
....
private void threadMonitor(Image im, Canvas canvas) {
prepareImage(im, canvas);
synchronized (monitor) {
try {
monitor.wait();
}
catch (InterruptedException ex) {}
}
}
|
млин.. не знаю.. может BufferedImage надо затерать прежде? может другой использовать? может еще что  не знаю даже.. 
-------------------
посмотрел вчера, оказывается в Canvas вообще ничего нарисовать нельзя!!!
может быть можно, но оно не отображается  |
