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private void handleMousePressed(MouseEvent e) {
startX = e.getX();
startY = e.getY();
}
private void handleMouseDragged(MouseEvent e) {
double draggedDistanceX = startX - e.getX();
double draggedDistanceY = startY - e.getY();
startX = e.getX();
startY = e.getY();
double viewWidth = mapArea.getWidth() * 1 / zoom;
double viewHeight = mapArea.getHeight() * 1 / zoom;
final Rectangle2D viewport = visioneusePrincipal.getViewport();
double curMinX = viewport.getMinX();
double curMinY = viewport.getMinY();
double newMinX = curMinX + draggedDistanceX;
double newMinY = curMinY + draggedDistanceY;
newMinX = clamp(newMinX, 0, Math.max(0, visioneusePrincipal.getImage().getWidth() - viewWidth));
newMinY = clamp(newMinY, 0, Math.max(0, visioneusePrincipal.getImage().getHeight() - viewHeight));
visioneusePrincipal.setViewport(new Rectangle2D(newMinX, newMinY, viewWidth, viewHeight));
System.out.printf("%f x %f \t %f x %f%n", newMinX, newMinY, visioneusePrincipal.getImage().getWidth(), visioneusePrincipal.getImage().getHeight());
}
double clamp(double min, double value, double max) {
double result = Math.max(min, value);
result = Math.min(result, max);
return result;
}
private void mapAreaSizeChanged(Observable o) {
double viewWidth = mapArea.getWidth() * 1 / zoom;
double viewHeight = mapArea.getHeight() * 1 / zoom;
final Rectangle2D viewport = visioneusePrincipal.getViewport();
if (viewport.getWidth() != viewWidth || viewport.getHeight() != viewHeight) {
double newMinX = viewport.getMinX();
double newMinY = viewport.getMinY();
newMinX = clamp(newMinX, 0, Math.max(0, visioneusePrincipal.getImage().getWidth() - viewWidth));
newMinY = clamp(newMinY, 0, Math.max(0, visioneusePrincipal.getImage().getHeight() - viewHeight));
visioneusePrincipal.setViewport(new Rectangle2D(newMinX, newMinY, viewWidth, viewHeight));
}
}
private double zoom = 1.0;
private Scale scale = new Scale(zoom, zoom);
private static final double MIN_ZOOM = 0.5;
private static final double MAX_ZOOM = 2.0;
private void handleZoom(ScrollEvent event) {
double delta = event.getDeltaY();
double newZoom = zoom;
if (delta < 0) {
newZoom /= 2;
}
if (delta > 0) {
newZoom *= 2;
}
newZoom = clamp(MIN_ZOOM, newZoom, MAX_ZOOM);
if (newZoom == zoom) {
return;
}
zoom = newZoom;
System.out.printf("Zoom: %f%n", zoom);
scale.setX(zoom);
scale.setY(zoom);
double viewWidth = mapArea.getWidth() * 1 / zoom;
double viewHeight = mapArea.getHeight() * 1 / zoom;
final Rectangle2D viewport = visioneusePrincipal.getViewport();
if (viewport.getWidth() != viewWidth || viewport.getHeight() != viewHeight) {
double newMinX = viewport.getMinX();
double newMinY = viewport.getMinY();
newMinX = clamp(newMinX, 0, Math.max(0, visioneusePrincipal.getImage().getWidth() - viewWidth));
newMinY = clamp(newMinY, 0, Math.max(0, visioneusePrincipal.getImage().getHeight() - viewHeight));
visioneusePrincipal.setViewport(new Rectangle2D(newMinX, newMinY, viewWidth, viewHeight));
}
} |
Problème de redimention d'image
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