protected void layout() {
Rectangle parentArea = this.composite.getClientArea();
int width = parentArea.width;
int height = parentArea.height;
Rectangle sashBounds = sash.getBounds();
resultText.setBounds(0, 0, width, sashBounds.y);
userText.setBounds(0, sashBounds.y + 3, width, height - sashBounds.y - 3);
sash.setBounds(0, sashBounds.y, width, 3);
}
/**
* Create the sash with right control on the right. Note that this method assumes GridData for the
* layout data of the rightControl.
*
* @param composite
* @param rightControl
* @return Sash
* @since 3.1
*/
protected Sash createSash(final Composite composite, final Control rightControl) {
final Sash sash = new Sash(composite, SWT.VERTICAL);
sash.setLayoutData(new GridData(GridData.FILL_VERTICAL));
sash.setBackground(composite.getDisplay().getSystemColor(SWT.COLOR_LIST_BACKGROUND));
// the following listener resizes the tree control based on sash deltas.
// If necessary, it will also grow/shrink the dialog.
sash.addListener(
SWT.Selection,
event -> {
if (event.detail == SWT.DRAG) {
return;
}
int shift = event.x - sash.getBounds().x;
GridData data = (GridData) rightControl.getLayoutData();
int newWidthHint = data.widthHint + shift;
if (newWidthHint < 20) {
return;
}
Point computedSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT);
Point currentSize = getShell().getSize();
// if the dialog wasn't of a custom size we know we can shrink
// it if necessary based on sash movement.
boolean customSize = !computedSize.equals(currentSize);
data.widthHint = newWidthHint;
setLastTreeWidth(newWidthHint);
composite.layout(true);
// recompute based on new widget size
computedSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT);
// if the dialog was of a custom size then increase it only if
// necessary.
if (customSize) {
computedSize.x = Math.max(computedSize.x, currentSize.x);
}
computedSize.y = Math.max(computedSize.y, currentSize.y);
if (computedSize.equals(currentSize)) {
return;
}
setShellSize(computedSize.x, computedSize.y);
lastShellSize = getShell().getSize();
});
return sash;
}