Java ImageCanvas类代码示例

import ij.gui.ImageCanvas; //导入依赖的package包/类
private void createListeners() {
    //IJ.log("createListeners");
    if(srcImp == null) {
        return;
    }
    ImageCanvas canvas = srcImp.getCanvas();
    if(canvas == null) {
        return;
    }
    canvas.addMouseListener(this);
    canvas.addMouseMotionListener(this);
    canvas.addKeyListener(this);
    ImagePlus.addImageListener(this);
    Font font = live.getFont();
    live.setFont(new Font(font.getName(), Font.BOLD, font.getSize()));
    live.setForeground(Color.red);
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
/**
 * Kill listeners.
 */
public void killListeners ()
{
	if(imp != null)
	{
		final ImageWindow iw = imp.getWindow();
		final ImageCanvas ic = iw.getCanvas();
	
		ic.removeKeyListener(pa);
		ic.removeMouseListener(pa);
		ic.removeMouseMotionListener(pa);
		ic.addMouseMotionListener(ic);
		ic.addMouseListener(ic);
		ic.addKeyListener(IJ.getInstance());
	}
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public ImageCanvas3D(final int width, final int height, final UIAdapter uia) {
	super(SimpleUniverse.getPreferredConfiguration());
	this.ui = uia;
	setPreferredSize(new Dimension(width, height));
	final ByteProcessor ip = new ByteProcessor(width, height);
	roiImagePlus = new RoiImagePlus("RoiImage", ip);
	roiImageCanvas = new ImageCanvas(roiImagePlus) {

		/* prevent ROI to enlarge/move on mouse click */
		@Override
		public void mousePressed(final MouseEvent e) {
			if (!ui.isMagnifierTool() && !ui.isPointTool()) super.mousePressed(e);
		}
	};
	roiImageCanvas.removeKeyListener(ij.IJ.getInstance());
	roiImageCanvas.removeMouseListener(roiImageCanvas);
	roiImageCanvas.removeMouseMotionListener(roiImageCanvas);
	roiImageCanvas.disablePopupMenu(true);

	background =
		new Background(new Color3f(UniverseSettings.defaultBackground));
	background.setCapability(Background.ALLOW_COLOR_WRITE);

	addListeners();
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
/** Enable zooming out up to the point where the display becomes 10 pixels in width or height. */
protected double getLowerZoomLevel2(final double currentMag) {
	// if it is 1/72 or lower, then:
	if (Math.abs(currentMag - 1/72.0) < 0.00000001 || currentMag < 1/72.0) { // lowest zoomLevel in ImageCanvas is 1/72.0
		// find nearest power of two under currentMag
		// start at level 7, which is 1/128
		int level = 7;
		double scale = currentMag;
		while (scale * srcRect.width > MIN_DIMENSION && scale * srcRect.height > MIN_DIMENSION) {
			scale = 1 / Math.pow(2, level);
			// if not equal and actually smaller, break:
			if (Math.abs(scale - currentMag) != 0.00000001 && scale < currentMag) break;
			level++;
		}
		return scale;
	} else {
		return ImageCanvas.getLowerZoomLevel(currentMag);
	}
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
protected double getHigherZoomLevel2(final double currentMag) {
	// if it is not 1/72 and its lower, then:
	if (Math.abs(currentMag - 1/72.0) > 0.00000001 && currentMag < 1/72.0) { // lowest zoomLevel in ImageCanvas is 1/72.0
		// find nearest power of two above currentMag
		// start at level 14, which is 0.00006103515625 (0.006 %)
		int level = 14; // this value may be increased in the future
		double scale = currentMag;
		while (level >= 0) {
			scale = 1 / Math.pow(2, level);
			if (scale > currentMag) break;
			level--;
		}
		return scale;
	} else {
		return ImageCanvas.getHigherZoomLevel(currentMag);
	}
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
private void removeListeners() {
    //IJ.log("removeListeners");
    if(srcImp == null) {
        return;
    }
    ImageCanvas canvas = srcImp.getCanvas();
    canvas.removeMouseListener(this);
    canvas.removeMouseMotionListener(this);
    canvas.removeKeyListener(this);
    ImagePlus.removeImageListener(this);
    Font font = live.getFont();
    live.setFont(new Font(font.getName(), Font.PLAIN, font.getSize()));
    live.setForeground(Color.black);
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
/**Displays a message in the ImageJ status bar.*/
public static void showStatus(String s) {
	if (ij!=null) ij.showStatus(s);
	ImagePlus imp = WindowManager.getCurrentImage();
	ImageCanvas ic = imp!=null?imp.getCanvas():null;
	if (ic!=null)
		ic.setShowCursorStatus(s.length()==0?true:false);
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
private void permuteImages (
) {
   // Swap image canvas
   final ImageCanvas swapIc = sourceIc;
   sourceIc = targetIc;
   targetIc = swapIc;

   // Swap ImagePlus
   final ImagePlus swapImp = sourceImp;
   sourceImp = targetImp;
   targetImp = swapImp;

   // Swap Mask
   final unwarpJMask swapMsk = sourceMsk;
   sourceMsk=targetMsk;
   targetMsk=swapMsk;

   // Swap Point Handlers
   final unwarpJPointHandler swapPh = sourcePh;
   sourcePh = targetPh;
   targetPh = swapPh;
   setSecondaryPointHandlers();

   // Inform the Toolbar about the change
   tb.setSource(sourceImp, sourcePh);
   tb.setTarget(targetImp, targetPh);

   // Restart the computation with each image
   source    =
      new unwarpJImageModel(sourceImp.getProcessor(), false);
   source.setPyramidDepth(imagePyramidDepth+min_scale_image);
   source.getThread().start();

   target =
      new unwarpJImageModel(targetImp.getProcessor(), true);
   target.setPyramidDepth(imagePyramidDepth+min_scale_image);
   target.getThread().start();
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public void killListeners (
) {
   final ImageWindow iw = imp.getWindow();
   final ImageCanvas ic = iw.getCanvas();
   ic.removeKeyListener(pa);
   ic.removeMouseListener(pa);
   ic.removeMouseMotionListener(pa);
   ic.addMouseMotionListener(ic);
   ic.addMouseListener(ic);
   ic.addKeyListener(IJ.getInstance());
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public unwarpJPointHandler (
   final ImagePlus           imp,
   final unwarpJPointToolbar tb,
   final unwarpJMask         mask,
   final unwarpJDialog       dialog
) {
   super(0, 0, imp.getWidth(), imp.getHeight(), imp);
   this.imp = imp;
   this.tb = tb;
   this.dialog=dialog;
   pa = new unwarpJPointAction(imp, this, tb, dialog);
   final ImageWindow iw = imp.getWindow();
   final ImageCanvas ic = iw.getCanvas();
   iw.requestFocus();
   iw.removeKeyListener(IJ.getInstance());
   iw.addKeyListener(pa);
   ic.removeMouseMotionListener(ic);
   ic.removeMouseListener(ic);
   ic.removeKeyListener(IJ.getInstance());
   ic.addKeyListener(pa);
   ic.addMouseListener(pa);
   ic.addMouseMotionListener(pa);
   setSpectrum();
   started = true;

   this.mask=mask;
   clearMask();
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
/**
 * Constructor with graphical capabilities, create an instance of PointHandler.
 *
 * @param imp pointer to the image
 * @param tb pointer to the toolbar
 * @param mask pointer to the mask
 * @param dialog pointer to the bUnwarpJ dialog
 */
public PointHandler (
		final ImagePlus imp,
		final PointToolbar tb,
		final Mask mask,
		final MainDialog dialog)
{
	super(0, 0, imp.getWidth(), imp.getHeight(), imp);
	this.imp = imp;
	this.tb = tb;
	this.dialog = dialog;
	this.pa = new PointAction(imp, this, tb, dialog);
	final ImageWindow iw = imp.getWindow();
	final ImageCanvas ic = iw.getCanvas();
	//iw.requestFocus();
	iw.removeKeyListener(IJ.getInstance());
	iw.addKeyListener(pa);
	ic.removeMouseMotionListener(ic);
	ic.removeMouseListener(ic);
	ic.removeKeyListener(IJ.getInstance());
	ic.addKeyListener(pa);
	ic.addMouseListener(pa);
	ic.addMouseMotionListener(pa);
	started = true;

	this.mask = mask;
	//clearMask(); // This line was commented to allow loading masks from the second slice of a stack.
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public void mouseClicked(MouseEvent e)
{
	if (e == null)
		return;
	ImageCanvas ic = imp.getCanvas();
	int cx = ic.offScreenX(e.getX());
	int cy = ic.offScreenY(e.getY());
	final int radius = (int) Math.ceil(diameter * 500 / nmPerPixel);
	final int radiusz = (int) Math.ceil(diameter * 500 / nmPerSlice);
	if (sphere == null)
	{
		int inc = 2 * radius + 1;
		int incz = 2 * radiusz + 1;
		sphere = createEllipsoid(inc, inc, incz);
	}
	int xloc = cx - radius;
	int yloc = cy - radius;
	int offset = imp.getCurrentSlice() - radiusz;
	ImageStack stack = imp.getImageStack();
	for (int slice = 1; slice <= sphere.getSize(); slice++)
	{
		int i = slice + offset;
		if (i < 1 || i > stack.getSize())
			continue;
		ImageProcessor ip = stack.getProcessor(i);
		ImageProcessor ip2 = sphere.getProcessor(slice);
		ip.copyBits(ip2, xloc, yloc, Blitter.MAX);
	}
	imp.updateAndDraw();
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public void setImage(ImagePlus srImage) {
	System.out.print("Adding image to the Jframe...");
	cleanFrame();
	ImageCanvas ic = new ImageCanvas(srImage);
	imageFrame.add(ic);
	configure(srImage.getWidth(), srImage.getHeight());
	System.out.println("[OK]");
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public void mouseReleased(MouseEvent e)
{
	if (dragging)
	{
		dragging = false;
		Roi roi = activeImp.getRoi();
		if (roi != null && roi.getType() == Roi.POINT && roi.getState() == Roi.NORMAL)
		{
			// Find the image x,y coords
			ImageCanvas ic = activeImp.getCanvas();
			int ox = ic.offScreenX(e.getX());
			int oy = ic.offScreenY(e.getY());

			//logMessage("Dropped coords " + ox + "," + oy);

			int index = findRoiPointIndex((PointRoi) roi, ox, oy);

			if (index >= 0)
			{
				if (assignDragged)
				{
					mapRoiPoint((PointRoi) roi, index);
				}
				else
				{
					addRoiPoint((PointRoi) roi, index);
				}
			}
		}
	}
}
 

import ij.gui.ImageCanvas; //导入依赖的package包/类
public FakeImageWindow(ImagePlus imp, ImageCanvas ic, Display display) {
	super(imp.getTitle());
	this.display = display;
	ij = IJ.getInstance();
	this.imp = imp;
	this.ic = ic;
	imp.setWindow(this);
	WindowManager.addWindow(this);
}