void updateImage(ImagePlus imp) {
this.imp = imp;
int width = imp.getWidth();
int height = imp.getHeight();
imageWidth = width;
imageHeight = height;
srcRect = new Rectangle(0, 0, imageWidth, imageHeight);
setDrawingSize(imageWidth, (int) imageHeight);
magnification = 1.0;
}
protected void handleRoiMouseDown(MouseEvent e) {
int sx = e.getX();
int sy = e.getY();
int ox = offScreenX(sx);
int oy = offScreenY(sy);
Roi roi = imp.getRoi();
int handle = roi != null ? roi.isHandle(sx, sy) : -1;
boolean multiPointMode =
roi != null
&& (roi instanceof PointRoi)
&& handle == -1
&& Toolbar.getToolId() == Toolbar.POINT
&& Toolbar.getMultiPointMode();
if (multiPointMode) {
imp.setRoi(((PointRoi) roi).addPoint(ox, oy));
return;
}
setRoiModState(e, roi, handle);
if (roi != null) {
if (handle >= 0) {
roi.mouseDownInHandle(handle, sx, sy);
return;
}
Rectangle r = roi.getBounds();
int type = roi.getType();
if (type == Roi.RECTANGLE
&& r.width == imp.getWidth()
&& r.height == imp.getHeight()
&& roi.getPasteMode() == Roi.NOT_PASTING
&& !(roi instanceof ImageRoi)) {
imp.killRoi();
return;
}
if (roi.contains(ox, oy)) {
if (roi.modState == Roi.NO_MODS) roi.handleMouseDown(sx, sy);
else {
imp.killRoi();
imp.createNewRoi(sx, sy);
}
return;
}
if ((type == Roi.POLYGON || type == Roi.POLYLINE || type == Roi.ANGLE)
&& roi.getState() == roi.CONSTRUCTING) return;
int tool = Toolbar.getToolId();
if ((tool == Toolbar.POLYGON || tool == Toolbar.POLYLINE || tool == Toolbar.ANGLE)
&& !(IJ.shiftKeyDown() || IJ.altKeyDown())) {
imp.killRoi();
return;
}
}
imp.createNewRoi(sx, sy);
}
public ImageCanvas(ImagePlus imp) {
this.imp = imp;
ij = IJ.getInstance();
int width = imp.getWidth();
int height = imp.getHeight();
imageWidth = width;
imageHeight = height;
srcRect = new Rectangle(0, 0, imageWidth, imageHeight);
setDrawingSize(imageWidth, (int) (imageHeight));
magnification = 1.0;
addMouseListener(this);
addMouseMotionListener(this);
addKeyListener(ij); // ImageJ handles keyboard shortcuts
setFocusTraversalKeysEnabled(false);
}