public void focusGained(org.eclipse.swt.events.FocusEvent event) {
VisualTerm previousFocused = context.getFocused();
if (previousFocused != null) previousFocused.lostFocus();
context.setFocused(this);
LineBorder focusBorder = new LineBorder();
focusBorder.setStyle(Graphics.LINE_DASH);
focusBorder.setColor(getColor());
focusBorder.setWidth(1);
setBorder(focusBorder);
context.selectionChanged(this);
if (canModify()) {
try {
String text = termToText();
context.getTextEditor().setText(text);
context.getTextEditor().setEnabled(true);
context.getTextEditor().setSelection(0, text.length());
context.getTextEditor().addKeyListener(this);
context.getTextEditor().setFocus();
Viewport viewport = ((FigureCanvas) getCanvas()).getViewport();
Point p = viewport.getViewLocation();
if (p.y > getLocation().y) {
viewport.setViewLocation(new Point(p.x, getLocation().y));
} else if (p.y + viewport.getSize().height < getLocation().y + getSize().height
&& viewport.getSize().height > getSize().height) {
viewport.setViewLocation(
new Point(p.x, getLocation().y + getSize().height - viewport.getSize().height));
}
if (p.x > getLocation().x) {
viewport.setViewLocation(new Point(getLocation().x, p.y));
} else if (p.x + viewport.getSize().width < getLocation().x + getSize().width
&& viewport.getSize().width > getSize().width) {
viewport.setViewLocation(
new Point(getLocation().x + getSize().width - viewport.getSize().width, p.y));
}
} catch (IOException e) {
e.printStackTrace();
} catch (PrologException e) {
e.printStackTrace();
} catch (TermInstantiationException e) {
e.printStackTrace();
} catch (ExecutionContextException e) {
e.printStackTrace();
}
}
}
/**
* Sets zoom to the passed string. The string must be composed of numeric characters only with the
* exception of a decimal point and a '%' as the last character. If the zoom level contribution
* list has been set, this method should be overridden to provide the appropriate zoom
* implementation for the new zoom levels.
*
* @param zoomString The new zoom level
*/
public void setZoomAsText(String zoomString) {
currentZoomContant = null;
if (zoomString.equalsIgnoreCase(FIT_HEIGHT)) {
currentZoomContant = FIT_HEIGHT;
primSetZoom(getFitHeightZoomLevel());
viewport.getUpdateManager().performUpdate();
viewport.setViewLocation(
viewport.getHorizontalRangeModel().getValue(),
viewport.getVerticalRangeModel().getMinimum());
} else if (zoomString.equalsIgnoreCase(FIT_ALL)) {
currentZoomContant = FIT_ALL;
primSetZoom(getFitPageZoomLevel());
viewport.getUpdateManager().performUpdate();
viewport.setViewLocation(
viewport.getHorizontalRangeModel().getMinimum(),
viewport.getVerticalRangeModel().getMinimum());
} else if (zoomString.equalsIgnoreCase(FIT_WIDTH)) {
currentZoomContant = FIT_WIDTH;
primSetZoom(getFitWidthZoomLevel());
viewport.getUpdateManager().performUpdate();
viewport.setViewLocation(
viewport.getHorizontalRangeModel().getMinimum(),
viewport.getVerticalRangeModel().getValue());
} else {
try {
// Trim off the '%'
if (zoomString.charAt(zoomString.length() - 1) == '%') {
zoomString = zoomString.substring(0, zoomString.length() - 1);
}
double newZoom = Double.parseDouble(zoomString) / 100;
setZoom(newZoom / multiplier);
} catch (Exception e) {
Display.getCurrent().beep();
}
}
}
/**
* Sets the Viewport's view associated with this ZoomManager to the passed Point
*
* @param p The new location for the Viewport's view.
*/
public void setViewLocation(Point p) {
viewport.setViewLocation(p.x, p.y);
}