1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
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();
if (!ic.cursorOverImage()) {
Rectangle srcRect = ic.getSrcRect();
loc.x = srcRect.x + srcRect.width/2;
loc.y = srcRect.y + srcRect.height/2;
}
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("set"))
setZoom(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();
}
}
/** Based on Albert Cardona's ZoomExact plugin:
http://albert.rierol.net/software.html */
void setZoom(ImagePlus imp, ImageCanvas ic) {
int x = imp.getWidth()/2;
int y = imp.getHeight()/2;
ImageWindow win = imp.getWindow();
GenericDialog gd = new GenericDialog("Set Zoom");
gd.addNumericField("Zoom:", ic.getMagnification() * 200, 0, 4, "%");
gd.addNumericField("X center:", x, 0, 5, "");
gd.addNumericField("Y center:", y, 0, 5, "");
gd.showDialog();
if (gd.wasCanceled()) return;
double mag = gd.getNextNumber()/100.0;
x = (int)gd.getNextNumber();
y = (int)gd.getNextNumber();
if (x<0) x=0;
if (y<0) y=0;
if (x>=imp.getWidth()) x=imp.getWidth()-1;
if (y>=imp.getHeight()) y=imp.getHeight()-1;
if (mag<=0.0) mag = 1.0;
win.getCanvas().setMagnification(mag);
double w = imp.getWidth()*mag;
double h = imp.getHeight()*mag;
Dimension screen = IJ.getScreenSize();
if (w>screen.width-20) w = screen.width - 20; // does it fit?
if (h>screen.height-50) h = screen.height - 50;
int width = (int)(w/mag);
int height = (int)(h/mag);
x -= width/2;
y -= height/2;
if (x<0) x=0;
if (y<0) y=0;
ic.setSourceRect(new Rectangle(x, y, width, height));
ic.setDrawingSize((int)w, (int)h);
win.pack();
ic.repaint();
}
}
|
