/** Creates the "Example" widgets. */
void createExampleWidgets() {
/* Compute the widget style */
int style = getDefaultStyle();
if (horizontalButton.getSelection()) style |= SWT.H_SCROLL;
if (verticalButton.getSelection()) style |= SWT.V_SCROLL;
if (borderButton.getSelection()) style |= SWT.BORDER;
if (noBackgroundButton.getSelection()) style |= SWT.NO_BACKGROUND;
if (noFocusButton.getSelection()) style |= SWT.NO_FOCUS;
if (noMergePaintsButton.getSelection()) style |= SWT.NO_MERGE_PAINTS;
if (noRedrawResizeButton.getSelection()) style |= SWT.NO_REDRAW_RESIZE;
/* Create the example widgets */
paintCount = 0;
cx = 0;
cy = 0;
canvas = new Canvas(canvasGroup, style);
canvas.addPaintListener(
new PaintListener() {
public void paintControl(PaintEvent e) {
paintCount++;
GC gc = e.gc;
if (fillDamageButton.getSelection()) {
Color color = e.display.getSystemColor(colors[paintCount % colors.length]);
gc.setBackground(color);
gc.fillRectangle(e.x, e.y, e.width, e.height);
}
Point size = canvas.getSize();
gc.drawArc(cx + 1, cy + 1, size.x - 2, size.y - 2, 0, 360);
gc.drawRectangle(cx + (size.x - 10) / 2, cy + (size.y - 10) / 2, 10, 10);
}
});
canvas.addControlListener(
new ControlAdapter() {
public void controlResized(ControlEvent event) {
Point size = canvas.getSize();
maxX = size.x * 3 / 2;
maxY = size.y * 3 / 2;
resizeScrollBars();
}
});
ScrollBar bar = canvas.getHorizontalBar();
if (bar != null) {
bar.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
scrollHorizontal((ScrollBar) event.widget);
}
});
}
bar = canvas.getVerticalBar();
if (bar != null) {
bar.addSelectionListener(
new SelectionAdapter() {
public void widgetSelected(SelectionEvent event) {
scrollVertical((ScrollBar) event.widget);
}
});
}
}
@Override
public void controlResized(final ControlEvent e) {
final Rectangle area = this.parent.getClientArea();
final Point size = this.table.computeSize(SWT.DEFAULT, SWT.DEFAULT);
final ScrollBar vBar = this.table.getVerticalBar();
int width =
area.width - this.table.computeTrim(0, 0, 0, 0).width - vBar.getSize().x - this.usedWidth;
if (size.y > area.height + this.table.getHeaderHeight()) {
// Subtract the scrollbar width from the total column width
// if a vertical scrollbar will be required
final Point vBarSize = vBar.getSize();
width -= vBarSize.x;
}
final Point oldSize = this.table.getSize();
if (oldSize.x > area.width) {
// table is getting smaller so make the columns
// smaller first and then resize the table to
// match the client area width
this.column.setWidth(width);
this.table.setSize(area.width, area.height);
} else {
// table is getting bigger so make the table
// bigger first and then make the columns wider
// to match the client area width
this.table.setSize(area.width, area.height);
this.column.setWidth(width);
}
}
private static void renderChanges(ScrollBar scrollBar) {
if (scrollBar != null) {
renderProperty(scrollBar, PROP_VISIBILITY, scrollBar.getVisible(), false);
renderListener(
scrollBar, PROP_SELECTION_LISTENER, scrollBar.isListening(SWT.Selection), false);
}
}
public void updateScroll() {
Rectangle rect = this.composite.getBounds();
Rectangle client = this.composite.getClientArea();
ScrollBar vBar = this.composite.getVerticalBar();
vBar.setMaximum(this.height);
vBar.setThumb(Math.min(rect.height, client.height));
}
/**
* Resize the scrolled composite enclosing the sections, which may result in the addition or
* removal of scroll bars.
*
* @since 3.5
*/
public void resizeScrolledComposite() {
Point currentTabSize = new Point(0, 0);
if (currentTab != null) {
final Composite sizeReference = (Composite) tabToComposite.get(currentTab);
if (sizeReference != null) {
currentTabSize = sizeReference.computeSize(SWT.DEFAULT, SWT.DEFAULT);
}
}
tabbedPropertyComposite.getScrolledComposite().setMinSize(currentTabSize);
final ScrollBar verticalScrollBar =
tabbedPropertyComposite.getScrolledComposite().getVerticalBar();
if (verticalScrollBar != null) {
final Rectangle clientArea = tabbedPropertyComposite.getScrolledComposite().getClientArea();
final int increment = clientArea.height - 5;
verticalScrollBar.setPageIncrement(increment);
}
final ScrollBar horizontalScrollBar =
tabbedPropertyComposite.getScrolledComposite().getHorizontalBar();
if (horizontalScrollBar != null) {
final Rectangle clientArea = tabbedPropertyComposite.getScrolledComposite().getClientArea();
final int increment = clientArea.width - 5;
horizontalScrollBar.setPageIncrement(increment);
}
}
private void updatePageIncrement() {
ScrollBar vbar = getVerticalBar();
if (vbar != null) {
Rectangle clientArea = getClientArea();
int increment = clientArea.height - 5;
vbar.setPageIncrement(increment);
}
}
private void appendLog(String text) {
synchronized (console) {
console.setText(console.getText() + text);
ScrollBar verticalBar = console.getVerticalBar();
if (verticalBar != null) {
verticalBar.setSelection(verticalBar.getMaximum());
}
}
}
public void scrolled(final ScrollBar scrollBar, final int widthToSubtract) {
_thumb = scrollBar.getThumb();
_minimum = scrollBar.getMinimum();
_maximum = scrollBar.getMaximum();
_selection = scrollBar.getSelection();
_widthToSubtract = widthToSubtract;
redraw();
update();
}
private void initScrollBarListener() {
ScrollBar scroll = getTable().getVerticalBar();
fScrollSelectionListener =
new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
handleScrollBarSelection();
}
};
scroll.addSelectionListener(fScrollSelectionListener);
}
/** Saves the state of the filter actions */
public void saveState(IMemento memento) {
fMemberFilterActionGroup.saveState(memento);
memento.putString(TAG_SHOWINHERITED, String.valueOf(isShowInheritedMethods()));
memento.putString(TAG_SORTBYDEFININGTYPE, String.valueOf(isShowDefiningTypes()));
ScrollBar bar = getTable().getVerticalBar();
int position = bar != null ? bar.getSelection() : 0;
memento.putString(TAG_VERTICAL_SCROLL, String.valueOf(position));
}
/**
* Installs this highlighter into the specified StyledText object. Client can manually call
* detach() method, then wants to destroy this object.
*/
public void attach(StyledText parent) {
detach();
text = parent;
text.addDisposeListener(ml);
text.addLineStyleListener(ml);
text.addLineBackgroundListener(ml);
text.addPaintListener(ml);
text.addVerifyListener(ml);
text.addExtendedModifyListener(ml);
text.addControlListener(ml);
text.addKeyListener(ml);
text.addTraverseListener(ml);
text.addMouseListener(ml);
text.addSelectionListener(ml);
text.getContent().addTextChangeListener(ml);
ScrollBar sb = text.getVerticalBar();
if (sb != null) sb.addSelectionListener(ml);
updateViewport();
new Thread() {
public void run() {
// setPriority(Thread.NORM_PRIORITY-1);
while (true) {
try {
sleep(300);
} catch (InterruptedException e) {
}
if (baseEditor == null || text == null) break;
if (backParserDelay) {
backParserDelay = false;
try {
sleep(1500);
} catch (InterruptedException e) {
}
continue;
}
;
Display.getDefault()
.syncExec(
new Runnable() {
public void run() {
if (baseEditor == null || text == null) return;
if (text.isDisposed()) return;
// System.out.println(System.currentTimeMillis());
baseEditor.idleJob(80);
// redrawFrom(text.getLineAtOffset(text.getCaretOffset()));
}
});
}
;
};
}.start();
}
private void initializeScrollBars() {
ScrollBar hbar = getHorizontalBar();
if (hbar != null) {
hbar.setIncrement(H_SCROLL_INCREMENT);
}
ScrollBar vbar = getVerticalBar();
if (vbar != null) {
vbar.setIncrement(V_SCROLL_INCREMENT);
}
updatePageIncrement();
}
protected Point getOffset(Point thumb, Point area) {
Point p = new Point(0, 0);
Point sel = new Point(hori.getSelection(), vert.getSelection());
if (thumb.x == 0 || thumb.y == 0) return p;
p.x = Math.round(-sel.x * area.x / thumb.x / magnification);
p.y = Math.round(-sel.y * area.y / thumb.y / magnification);
return p;
}
@Test
public void testReadData_ScrollBarsSelectionEvent() {
sc.setContent(new Composite(sc, SWT.NONE));
SelectionListener selectionListener = mock(SelectionListener.class);
hScroll.addSelectionListener(selectionListener);
vScroll.addSelectionListener(selectionListener);
Fixture.fakeNotifyOperation(getId(hScroll), "Selection", null);
Fixture.fakeNotifyOperation(getId(vScroll), "Selection", null);
Fixture.readDataAndProcessAction(sc);
verify(selectionListener, times(2)).widgetSelected(any(SelectionEvent.class));
}
@Test
public void testRenderOrigin_SetByScrollbar() throws IOException {
Composite content = new Composite(sc, SWT.NONE);
sc.setContent(content);
hScroll.setSelection(1);
vScroll.setSelection(2);
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
JsonArray expected = JsonArray.readFrom("[ 1, 2 ]");
assertEquals(expected, message.findSetProperty(sc, "origin"));
}
@Override
protected void updateLowerViewWidget(Object[] elements) {
if (elements == null || elements.length < 1) {
fTreeViewer.setInput(null);
return;
}
fTreeViewer.setInput(elements[0]);
ScrollBar bar = fTree.getVerticalBar();
if (bar != null) {
bar.setSelection(0);
}
}
@Test
public void testRenderRemoveScrollBarsSelectionListener_Vertical() throws Exception {
SelectionListener listener = new SelectionAdapter() {};
vScroll.addSelectionListener(listener);
Fixture.markInitialized(display);
Fixture.markInitialized(sc);
Fixture.markInitialized(vScroll);
Fixture.preserveWidgets();
vScroll.removeSelectionListener(listener);
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
assertEquals(JsonValue.FALSE, message.findListenProperty(vScroll, "Selection"));
}
@Test
public void testPreserveValues() {
RemoteAdapter adapter = WidgetUtil.getAdapter(sc);
assertEquals(null, adapter.getPreserved(PROP_SHOW_FOCUSED_CONTROL));
hScroll.setSelection(23);
vScroll.setSelection(42);
sc.setShowFocusedControl(true);
assertEquals(23, hScroll.getSelection());
assertEquals(42, vScroll.getSelection());
Rectangle rectangle = new Rectangle(12, 30, 20, 40);
sc.setBounds(rectangle);
Fixture.markInitialized(display);
Fixture.preserveWidgets();
assertEquals(Boolean.TRUE, adapter.getPreserved(PROP_SHOW_FOCUSED_CONTROL));
}
private void handleOptionSelection() {
// Get the selection from the tree list
if (fTree == null) return;
IStructuredSelection selection = (IStructuredSelection) fTree.getSelection();
ToolListElement element = (ToolListElement) selection.getFirstElement();
if (element != null) {
displayPageForElement(element);
}
ScrollBar sb = containerSC.getHorizontalBar();
if (sb != null && sb.isVisible()) {
settingsPageContainer.pack(true);
containerSC.setMinSize(settingsPageContainer.getSize());
((AbstractPage) page).resize();
}
}
/**
* search next text
*
* @param widgetText text widget
* @param widgetFind search text widget
*/
private void findNext(StyledText widgetText, Text widgetFind) {
if (!widgetText.isDisposed()) {
String findText = widgetFind.getText().toLowerCase();
if (!findText.isEmpty()) {
// get cursor position
int cursorIndex = widgetText.getCaretOffset();
// search
int offset = -1;
if (cursorIndex >= 0) {
String text = widgetText.getText();
offset =
(cursorIndex + 1 < text.length())
? text.substring(cursorIndex + 1).toLowerCase().indexOf(findText)
: -1;
}
if (offset >= 0) {
int index = cursorIndex + 1 + offset;
widgetText.setCaretOffset(index);
widgetText.setSelection(index);
widgetText.redraw();
int topIndex = widgetText.getTopIndex();
widgetLineNumbers.setTopIndex(topIndex);
widgetVerticalScrollBar.setSelection(topIndex);
} else {
Widgets.flash(widgetFind);
}
}
}
}
@Test
public void testRenderScrollBarsVisibleUnchanged() throws IOException {
Fixture.markInitialized(display);
Fixture.markInitialized(sc);
Fixture.markInitialized(hScroll);
Fixture.markInitialized(vScroll);
hScroll.setVisible(false);
vScroll.setVisible(false);
Fixture.preserveWidgets();
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
assertNull(message.findSetOperation(hScroll, "visibility"));
assertNull(message.findSetOperation(vScroll, "visibility"));
}
void onDispose(Event event) {
removeListener(SWT.Dispose, listener);
notifyListeners(SWT.Dispose, event);
event.type = SWT.None;
table.removeListener(SWT.FocusIn, tableListener);
table.removeListener(SWT.MouseDown, tableListener);
unhookRowColumnListeners();
ScrollBar hBar = table.getHorizontalBar();
if (hBar != null) {
hBar.removeListener(SWT.Selection, resizeListener);
}
ScrollBar vBar = table.getVerticalBar();
if (vBar != null) {
vBar.removeListener(SWT.Selection, resizeListener);
}
}
private void init() {
this.composite = new Composite(this, SWT.BORDER | SWT.V_SCROLL | SWT.DOUBLE_BUFFERED);
this.composite.setBackground(this.getDisplay().getSystemColor(SWT.COLOR_WHITE));
this.composite.addPaintListener(
new PaintListener() {
public void paintControl(PaintEvent e) {
TGPainter painter = new TGPainter(e.gc);
paintChords(painter);
}
});
this.composite.addMouseListener(
new MouseAdapter() {
public void mouseUp(MouseEvent e) {
getComposite().setFocus();
getDialog().getEditor().setChord(getChord(e.x, e.y, true));
redraw();
}
});
final Point origin = new Point(0, 0);
final ScrollBar vBar = this.composite.getVerticalBar();
vBar.setIncrement(SCROLL_INCREMENT);
vBar.addListener(
SWT.Selection,
new Listener() {
public void handleEvent(Event e) {
int vSelection = vBar.getSelection();
int destY = -vSelection - origin.y;
Rectangle rect = getComposite().getBounds();
getShell().scroll(0, destY, 0, 0, rect.width, rect.height, false);
origin.y = -vSelection;
redraw();
}
});
GridData data = new GridData(SWT.FILL, SWT.FILL, true, true);
data.minimumHeight = MIN_HEIGHT;
this.composite.setLayoutData(data);
this.addDisposeListener(
new DisposeListener() {
public void widgetDisposed(DisposeEvent arg0) {
disposeChords();
disposeFont();
}
});
}
private static String getOverflow(final ScrolledComposite composite) {
String result;
ScrollBar horizontalBar = composite.getHorizontalBar();
boolean scrollX = horizontalBar != null && horizontalBar.getVisible();
ScrollBar verticalBar = composite.getVerticalBar();
boolean scrollY = verticalBar != null && verticalBar.getVisible();
if (scrollX && scrollY) {
result = "scroll";
} else if (scrollX) {
result = "scrollX";
} else if (scrollY) {
result = "scrollY";
} else {
result = "hidden";
}
return result;
}
/**
* Removes this object from the corresponding StyledText widget. Object can't be used after this
* call, until another attach. This method is called automatically, when StyledText widget is
* disposed
*/
public void detach() {
if (text == null) return;
text.removeDisposeListener(ml);
text.removeLineStyleListener(ml);
text.removeLineBackgroundListener(ml);
text.removePaintListener(ml);
text.removeVerifyListener(ml);
text.removeExtendedModifyListener(ml);
text.removeControlListener(ml);
text.removeKeyListener(ml);
text.removeTraverseListener(ml);
text.removeMouseListener(ml);
text.removeSelectionListener(ml);
ScrollBar sb = text.getVerticalBar();
if (sb != null) sb.removeSelectionListener(ml);
baseEditor = null;
}
private static void renderCreate(ScrollBar scrollBar) {
if (scrollBar != null) {
IClientObject clientObject = ClientObjectFactory.getClientObject(scrollBar);
clientObject.create(TYPE);
clientObject.set("parent", getId(scrollBar.getParent()));
clientObject.set("style", WidgetLCAUtil.getStyles(scrollBar, ALLOWED_STYLES));
}
}
private static Integer getBarSelection(final ScrollBar scrollBar) {
Integer result;
if (scrollBar != null) {
result = new Integer(scrollBar.getSelection());
} else {
result = null;
}
return result;
}
@Test
public void testRenderScrollBarsVisible_Vertical() throws IOException {
vScroll.setVisible(true);
lca.renderChanges(sc);
TestMessage message = Fixture.getProtocolMessage();
assertNull(message.findSetOperation(hScroll, "visibility"));
assertEquals(JsonValue.TRUE, message.findSetProperty(vScroll, "visibility"));
}
/**
* Scrolls the canvas horizontally.
*
* @param scrollBar
*/
void scrollHorizontal(ScrollBar scrollBar) {
Rectangle bounds = canvas.getClientArea();
int x = -scrollBar.getSelection();
if (x + maxX < bounds.width) {
x = bounds.width - maxX;
}
canvas.scroll(x, cy, cx, cy, maxX, maxY, false);
cx = x;
}
/**
* Scrolls the canvas vertically.
*
* @param scrollBar
*/
void scrollVertical(ScrollBar scrollBar) {
Rectangle bounds = canvas.getClientArea();
int y = -scrollBar.getSelection();
if (y + maxY < bounds.height) {
y = bounds.height - maxY;
}
canvas.scroll(cx, y, cx, cy, maxX, maxY, false);
cy = y;
}
