private void restoreScrollingPosition() {
if (scrollingPosition != null) {
Point size = preview.getSize();
scroll.setOrigin(
(int) Math.round(scrollingPosition[0] * size.x),
(int) Math.round(scrollingPosition[1] * size.y));
}
}
@Test
public void testRenderOrigin() throws IOException {
Composite content = new Composite(sc, SWT.NONE);
sc.setContent(content);
sc.setOrigin(1, 2);
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
JsonArray expected = JsonArray.readFrom("[ 1, 2 ]");
assertEquals(expected, message.findSetProperty(sc, "origin"));
}
void activeKeyScrolling() {
if (keyScrollingFilter == null) {
Composite pageParent = getPageContainer().getParent();
if (!(pageParent instanceof ScrolledComposite)) {
return;
}
final ScrolledComposite sc = (ScrolledComposite) pageParent;
keyScrollingFilter =
event -> {
if (!keyScrollingEnabled || sc.isDisposed()) {
return;
}
switch (event.keyCode) {
case SWT.ARROW_DOWN:
sc.setOrigin(sc.getOrigin().x, sc.getOrigin().y + INCREMENT);
break;
case SWT.ARROW_UP:
sc.setOrigin(sc.getOrigin().x, sc.getOrigin().y - INCREMENT);
break;
case SWT.ARROW_LEFT:
sc.setOrigin(sc.getOrigin().x - INCREMENT, sc.getOrigin().y);
break;
case SWT.ARROW_RIGHT:
sc.setOrigin(sc.getOrigin().x + INCREMENT, sc.getOrigin().y);
break;
case SWT.PAGE_DOWN:
sc.setOrigin(sc.getOrigin().x, sc.getOrigin().y + PAGE_MULTIPLIER * INCREMENT);
break;
case SWT.PAGE_UP:
sc.setOrigin(sc.getOrigin().x, sc.getOrigin().y - PAGE_MULTIPLIER * INCREMENT);
break;
case SWT.HOME:
sc.setOrigin(0, 0);
break;
case SWT.END:
sc.setOrigin(0, sc.getSize().y);
break;
default:
keyScrollingEnabled = false;
}
event.type = SWT.None;
event.doit = false;
};
Display display = PlatformUI.getWorkbench().getDisplay();
display.addFilter(SWT.KeyDown, keyScrollingFilter);
display.addFilter(SWT.Traverse, keyScrollingFilter);
sc.addDisposeListener(e -> removeKeyScrolling());
}
keyScrollingEnabled = true;
}
@Test
public void testRenderOriginUnchanged() throws IOException {
Composite content = new Composite(sc, SWT.NONE);
sc.setContent(content);
Fixture.markInitialized(display);
Fixture.markInitialized(sc);
sc.setOrigin(1, 2);
Fixture.preserveWidgets();
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
assertNull(message.findSetOperation(hScroll, "selection"));
assertNull(message.findSetOperation(vScroll, "selection"));
}
public void readData(final Widget widget) {
ScrolledComposite composite = (ScrolledComposite) widget;
Point origin = composite.getOrigin();
String value = WidgetLCAUtil.readPropertyValue(widget, PARAM_H_BAR_SELECTION);
ScrollBar hScroll = composite.getHorizontalBar();
if (value != null && hScroll != null) {
origin.x = Integer.parseInt(value);
processSelection(hScroll);
}
value = WidgetLCAUtil.readPropertyValue(widget, PARAM_V_BAR_SELECTION);
ScrollBar vScroll = composite.getVerticalBar();
if (value != null && vScroll != null) {
origin.y = Integer.parseInt(value);
processSelection(vScroll);
}
composite.setOrigin(origin);
ControlLCAUtil.processMouseEvents(composite);
ControlLCAUtil.processKeyEvents(composite);
ControlLCAUtil.processMenuDetect(composite);
WidgetLCAUtil.processHelp(composite);
}