public void setImage(BufferedImage image, String format) {
ImageDocument document = imageComponent.getDocument();
BufferedImage previousImage = document.getValue();
document.setValue(image);
if (image == null) return;
document.setFormat(format);
ImageZoomModel zoomModel = getZoomModel();
if (previousImage == null || !zoomModel.isZoomLevelChanged()) {
// Set smart zooming behaviour on open
Options options = OptionsManager.getInstance().getOptions();
ZoomOptions zoomOptions = options.getEditorOptions().getZoomOptions();
// Open as actual size
zoomModel.setZoomFactor(1.0d);
if (zoomOptions.isSmartZooming()) {
Dimension prefferedSize = zoomOptions.getPrefferedSize();
if (prefferedSize.width > image.getWidth() && prefferedSize.height > image.getHeight()) {
// Resize to preffered size
// Calculate zoom factor
double factor =
(prefferedSize.getWidth() / (double) image.getWidth()
+ prefferedSize.getHeight() / (double) image.getHeight())
/ 2.0d;
zoomModel.setZoomFactor(Math.ceil(factor));
}
}
}
}
public boolean canZoomOut() {
double factor = getZoomFactor();
double minFactor = getMinimumZoomFactor();
double stepSize = (1.0 - minFactor) / MICRO_ZOOM_LIMIT;
double step = Math.ceil((1.0 - factor) / stepSize);
return step < MICRO_ZOOM_LIMIT;
}
public void zoomOut() {
double factor = getZoomFactor();
if (factor > 1.0d) {
// Macro
setZoomFactor(factor / 2.0d);
} else {
// Micro
double minFactor = getMinimumZoomFactor();
double stepSize = (1.0d - minFactor) / MICRO_ZOOM_LIMIT;
int step = (int) Math.ceil((1.0d - factor) / stepSize);
setZoomFactor(1.0d - stepSize * (step + 1));
}
myZoomLevelChanged = true;
}