/**
* Zooms in by making the window bigger. If it can't be made bigger, then make the source
* rectangle (srcRect) smaller and center it at (sx,sy). Note that sx and sy are screen
* coordinates.
*/
public void zoomIn(int sx, int sy) {
if (magnification >= 32) return;
double newMag = getHigherZoomLevel(magnification);
int newWidth = (int) (imageWidth * newMag);
int newHeight = (int) (imageHeight * newMag);
Dimension newSize = canEnlarge(newWidth, newHeight);
if (newSize != null) {
setDrawingSize(newSize.width, newSize.height);
if (newSize.width != newWidth || newSize.height != newHeight)
adjustSourceRect(newMag, sx, sy);
else setMagnification(newMag);
imp.getWindow().pack();
} else adjustSourceRect(newMag, sx, sy);
repaint();
if (srcRect.width < imageWidth || srcRect.height < imageHeight) resetMaxBounds();
}
/** Implements the Image/Zoom/View 100% command. */
public void zoom100Percent() {
if (magnification == 1.0) return;
double imag = imp.getWindow().getInitialMagnification();
if (magnification != imag) unzoom();
if (magnification == 1.0) return;
if (magnification < 1.0) {
while (magnification < 1.0) zoomIn(imageWidth / 2, imageHeight / 2);
} else if (magnification > 1.0) {
while (magnification > 1.0) zoomOut(imageWidth / 2, imageHeight / 2);
} else return;
int x = xMouse, y = yMouse;
if (mouseExited) {
x = imageWidth / 2;
y = imageHeight / 2;
}
int sx = screenX(x);
int sy = screenY(y);
adjustSourceRect(1.0, sx, sy);
repaint();
}