boolean showDialog(ImageProcessor ip) {
int bitDepth = imp.getBitDepth();
boolean isStack = imp.getStackSize() > 1;
r = ip.getRoi();
int width = newWidth;
if (width == 0) width = r.width;
int height = (int) ((double) width * r.height / r.width);
xscale = Tools.parseDouble(xstr, 0.0);
yscale = Tools.parseDouble(ystr, 0.0);
if (xscale != 0.0 && yscale != 0.0) {
width = (int) (r.width * xscale);
height = (int) (r.height * yscale);
} else {
xstr = "-";
ystr = "-";
}
GenericDialog gd = new GenericDialog("Scale");
gd.addStringField("X Scale (0.05-25):", xstr);
gd.addStringField("Y Scale (0.05-25):", ystr);
gd.setInsets(5, 0, 5);
gd.addStringField("Width (pixels):", "" + width);
gd.addStringField("Height (pixels):", "" + height);
fields = gd.getStringFields();
for (int i = 0; i < 3; i++) {
((TextField) fields.elementAt(i)).addTextListener(this);
((TextField) fields.elementAt(i)).addFocusListener(this);
}
xField = (TextField) fields.elementAt(0);
yField = (TextField) fields.elementAt(1);
widthField = (TextField) fields.elementAt(2);
heightField = (TextField) fields.elementAt(3);
fieldWithFocus = xField;
gd.addCheckbox("Interpolate", interpolate);
if (bitDepth == 8 || bitDepth == 24)
gd.addCheckbox("Fill with Background Color", fillWithBackground);
if (isStack) gd.addCheckbox("Process Entire Stack", processStack);
gd.addCheckbox("Create New Window", newWindow);
title = WindowManager.getUniqueName(imp.getTitle());
gd.setInsets(10, 0, 0);
gd.addStringField("Title:", title, 12);
gd.showDialog();
if (gd.wasCanceled()) return false;
xstr = gd.getNextString();
ystr = gd.getNextString();
xscale = Tools.parseDouble(xstr, 0.0);
yscale = Tools.parseDouble(ystr, 0.0);
String wstr = gd.getNextString();
newWidth = (int) Tools.parseDouble(wstr, 0);
newHeight = (int) Tools.parseDouble(gd.getNextString(), 0);
if (newHeight != 0 && (wstr.equals("-") || wstr.equals("0")))
newWidth = (int) (newHeight * (double) r.width / r.height);
if (newWidth == 0 || newHeight == 0) {
IJ.error("Invalid width or height entered");
return false;
}
if (xscale > 25.0) xscale = 25.0;
if (yscale > 25.0) yscale = 25.0;
if (xscale > 0.0 && yscale > 0.0) {
newWidth = (int) (r.width * xscale);
newHeight = (int) (r.height * yscale);
}
interpolate = gd.getNextBoolean();
if (bitDepth == 8 || bitDepth == 24) fillWithBackground = gd.getNextBoolean();
if (isStack) processStack = gd.getNextBoolean();
newWindow = gd.getNextBoolean();
if (!newWindow && xscale == 0.0) {
xscale = (double) newWidth / r.width;
yscale = (double) newHeight / r.height;
}
title = gd.getNextString();
if (fillWithBackground) {
Color bgc = Toolbar.getBackgroundColor();
if (bitDepth == 8) bgValue = ip.getBestIndex(bgc);
else if (bitDepth == 24) bgValue = bgc.getRGB();
} else {
if (bitDepth == 8) bgValue = ip.isInvertedLut() ? 0.0 : 255.0; // white
else if (bitDepth == 24) bgValue = 0xffffffff; // white
}
return true;
}
