protected void waitForFolding(JTextComponent target, int maxMiliSeconds) {
// wait for parser and folding hierarchy creation
int time = (int) maxMiliSeconds / 100;
AbstractDocument adoc = (AbstractDocument) target.getDocument();
// Dump fold hierarchy
FoldHierarchy hierarchy = FoldHierarchy.get(target);
int foldCount = 0;
while (foldCount == 0 && time > 0) {
adoc.readLock();
try {
hierarchy.lock();
try {
foldCount = hierarchy.getRootFold().getFoldCount();
} finally {
hierarchy.unlock();
}
} finally {
adoc.readUnlock();
}
try {
Thread.currentThread().sleep(100);
} catch (InterruptedException ex) {
time = 0;
}
time--;
}
}
/**
* Execute the given runnable over the exclusively locked hierarchy. <br>
* Prior using this method the document must be locked. The document lock can be either readlock
* e.g. by using {@link javax.swing.text.Document#render(Runnable)} or writelock e.g. when in
* {@link javax.swing.event.DocumentListener}) and must be obtained on component's document i.e.
* {@link javax.swing.text.JTextComponent#getDocument()} should be used.
*
* @param r the runnable to be executed.
*/
public void render(Runnable r) {
lock();
try {
r.run();
} finally {
unlock();
}
}
/**
* GlyphGutter copy pasted bolerplate method. It invokes {@link #paintView} that contains actual
* business logic.
*/
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
Rectangle clip = g.getClipBounds();
JTextComponent component = editorUI.getComponent();
if (component == null) return;
BaseTextUI textUI = (BaseTextUI) component.getUI();
View rootView = Utilities.getDocumentView(component);
if (rootView == null) return;
g.setColor(backgroundColor());
g.fillRect(clip.x, clip.y, clip.width, clip.height);
AbstractDocument doc = (AbstractDocument) component.getDocument();
doc.readLock();
try {
foldHierarchy.lock();
try {
int startPos = textUI.getPosFromY(clip.y);
int startViewIndex = rootView.getViewIndex(startPos, Position.Bias.Forward);
int rootViewCount = rootView.getViewCount();
if (startViewIndex >= 0 && startViewIndex < rootViewCount) {
int clipEndY = clip.y + clip.height;
for (int i = startViewIndex; i < rootViewCount; i++) {
View view = rootView.getView(i);
Rectangle rec = component.modelToView(view.getStartOffset());
if (rec == null) {
break;
}
int y = rec.y;
paintView(view, g, y);
if (y >= clipEndY) {
break;
}
}
}
} finally {
foldHierarchy.unlock();
}
} catch (BadLocationException ble) {
Mercurial.LOG.log(Level.WARNING, null, ble);
} finally {
doc.readUnlock();
}
}
public static String foldHierarchyToString(JTextComponent target) {
String ret = "";
AbstractDocument adoc = (AbstractDocument) target.getDocument();
// Dump fold hierarchy
FoldHierarchy hierarchy = FoldHierarchy.get(target);
adoc.readLock();
try {
hierarchy.lock();
try {
Fold root = hierarchy.getRootFold();
ret = (root == null) ? "root is null" : foldToStringChildren(root, 0); // NOI18N
} finally {
hierarchy.unlock();
}
} finally {
adoc.readUnlock();
}
return ret;
}