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package ij.plugin; import ij.*; import ij.gui.*; import ij.process.*; import ij.measure.*; import java.awt.*; /** This plugin implements the commands in the Image/Zoom submenu. */ public class Zoom implements PlugIn{ /** 'arg' must be "in", "out", "100%" or "orig". */ public void run(String arg) { ImagePlus imp = WindowManager.getCurrentImage(); if (imp==null) {IJ.noImage(); return;} ImageCanvas ic = imp.getCanvas(); if (ic==null) return; Point loc = ic.getCursorLoc(); int x = ic.screenX(loc.x); int y = ic.screenY(loc.y); if (arg.equals("in")) { ic.zoomIn(x, y); if (ic.getMagnification()<=1.0) imp.repaintWindow(); } else if (arg.equals("out")) { ic.zoomOut(x, y); if (ic.getMagnification()<1.0) imp.repaintWindow(); } else if (arg.equals("orig")) ic.unzoom(); else if (arg.equals("100%")) ic.zoom100Percent(); else if (arg.equals("to")) zoomToSelection(imp, ic); else if (arg.equals("max")) { ImageWindow win = imp.getWindow(); win.setBounds(win.getMaximumBounds()); win.maximize(); } } void zoomToSelection(ImagePlus imp, ImageCanvas ic) { Roi roi = imp.getRoi(); ic.unzoom(); if (roi==null) return; Rectangle w = imp.getWindow().getBounds(); Rectangle r = roi.getBounds(); double mag = ic.getMagnification(); int marginw = (int)((w.width - mag * imp.getWidth())); int marginh = (int)((w.height - mag * imp.getHeight())); int x = r.x+r.width/2; int y = r.y+r.height/2; mag = ic.getHigherZoomLevel(mag); while(r.width*mag<w.width - marginw && r.height*mag<w.height - marginh) { ic.zoomIn(ic.screenX(x), ic.screenY(y)); double cmag = ic.getMagnification(); if (cmag==32.0) break; mag = ic.getHigherZoomLevel(cmag); w = imp.getWindow().getBounds(); } } }
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Zoom |
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