Java Code Examples for javax.swing.text.JTextComponent#getUI()

/** Attempt to find the editor keystroke for the given editor action. */
private KeyStroke[] findEditorKeys(String editorActionName, KeyStroke defaultKey, JTextComponent component) {
    // This method is implemented due to the issue
    // #25715 - Attempt to search keymap for the keybinding that logically corresponds to the action
    KeyStroke[] ret = new KeyStroke[] { defaultKey };
    if (component != null) {
        TextUI componentUI = component.getUI();
        Keymap km = component.getKeymap();
        if (componentUI != null && km != null) {
            EditorKit kit = componentUI.getEditorKit(component);
            if (kit instanceof BaseKit) {
                 Action a = ((BaseKit)kit).getActionByName(editorActionName);
                if (a != null) {
                    KeyStroke[] keys = km.getKeyStrokesForAction(a);
                    if (keys != null && keys.length > 0) {
                        ret = keys;
                    }
                }
            }
        }
    }
    return ret;
}
 

protected static void installSearchField(final JTextComponent c) {
    final SearchFieldBorder border = getSearchTextFieldBorder();
    c.setBorder(border);
    c.setLayout(border.getCustomLayout());
    c.add(getFindButton(c), BorderLayout.WEST);
    c.add(getCancelButton(c), BorderLayout.EAST);
    c.add(getPromptLabel(c), BorderLayout.CENTER);

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(border);
    }
}
 

/**
        * Paints a highlight.
        *
        * @param g the graphics context
        * @param offs0 the starting model offset >= 0
        * @param offs1 the ending model offset >= offs1
        * @param bounds the bounding box for the highlight
        * @param c the editor
        */
       public void paint(Graphics g, int offs0, int offs1, Shape bounds, JTextComponent c) {
    Rectangle alloc = bounds.getBounds();
    try {
	// --- determine locations ---
	TextUI mapper = c.getUI();
	Rectangle p0 = mapper.modelToView(c, offs0);
	Rectangle p1 = mapper.modelToView(c, offs1);

	// --- render ---
	Color color = getColor();

	if (color == null) {
	    g.setColor(c.getSelectionColor());
	}
	else {
	    g.setColor(color);
	}
	if (p0.y == p1.y) {
	    // same line, render a rectangle
	    Rectangle r = p0.union(p1);
	    g.fillRect(r.x, r.y, r.width, r.height);
	} else {
	    // different lines
	    int p0ToMarginWidth = alloc.x + alloc.width - p0.x;
	    g.fillRect(p0.x, p0.y, p0ToMarginWidth, p0.height);
	    if ((p0.y + p0.height) != p1.y) {
		g.fillRect(alloc.x, p0.y + p0.height, alloc.width, 
			   p1.y - (p0.y + p0.height));
	    } 
	    g.fillRect(alloc.x, p1.y, (p1.x - alloc.x), p1.height);
	}
    } catch (BadLocationException e) {
	// can't render
    }
}
 

static int getShrinkageFor(final JTextComponent jc, final int height) {
    if (jc == null) return 0;
    final TextUI ui = jc.getUI();
    if (ui == null) return 0;
    final Dimension size = ui.getPreferredSize(jc);
    if (size == null) return 0;
    final int shrinkage = size.height - height;
    return (shrinkage < 0) ? 0 : (shrinkage > 3) ? 3 : shrinkage;
}
 

static int getShrinkageFor(final JTextComponent jc, final int height) {
    if (jc == null) return 0;
    final TextUI ui = jc.getUI();
    if (ui == null) return 0;
    final Dimension size = ui.getPreferredSize(jc);
    if (size == null) return 0;
    final int shrinkage = size.height - height;
    return (shrinkage < 0) ? 0 : (shrinkage > 3) ? 3 : shrinkage;
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}
 

/**
 * Paints one view that corresponds to a line (or
 * multiple lines if folding takes effect).
 */
private void paintView(View view, Graphics g, int yBase) {
    JTextComponent component = editorUI.getComponent();
    if (component == null) return;
    BaseTextUI textUI = (BaseTextUI)component.getUI();

    Element rootElem = textUI.getRootView(component).getElement();
    int line = rootElem.getElementIndex(view.getStartOffset());

    String annotation = "";  // NOI18N
    AnnotateLine al = null;
    if (!elementAnnotations.isEmpty()) {
        al = getAnnotateLine(line);
        if (al != null) {
            annotation = getDisplayName(al);  // NOI18N
        }
    } else {
        annotation = elementAnnotationsSubstitute;
    }

    if (al != null && al.getRevision().equals(recentRevision)) {
        g.setColor(selectedColor());
    } else {
        g.setColor(foregroundColor());
    }
    int texty = yBase + editorUI.getLineAscent();
    int textx = 2;
    g.drawString(annotation, textx, texty);
}
 

private static Object getEditorUI(JTextComponent c) throws Exception {
    // TODO: fix this, do not use reflection
    TextUI textUI = c.getUI();
    Method getEuiMethod = null;
    try {
        getEuiMethod = textUI.getClass().getMethod("getEditorUI"); //NOI18N
    } catch (NoSuchMethodException nsme) {
        LOG.log(Level.INFO, nsme.getMessage(), nsme);
    }
    if (getEuiMethod != null) {
        return getEuiMethod.invoke(textUI);
    } else {
        return null;
    }
}
 

@SuppressWarnings("LeakingThisInConstructor")
public BraceMatchingSidebarComponent(JTextComponent editor) {
    this.editor = editor;
    this.mimeType = DocumentUtilities.getMimeType(editor);
    this.prefs = MimeLookup.getLookup(MimePath.EMPTY).lookup(Preferences.class);
    
    final Lookup.Result r = MimeLookup.getLookup(org.netbeans.lib.editor.util.swing.DocumentUtilities.getMimeType(editor)).lookupResult(
            FontColorSettings.class);
    prefListenerGC = new PrefListener();
    this.colorResult = r;
    r.addLookupListener(WeakListeners.create(LookupListener.class, this , r));
    prefs.addPreferenceChangeListener(WeakListeners.create(PreferenceChangeListener.class, prefListenerGC, prefs));
    loadPreferences();
    
    editorPane = findEditorPane(editor);
    Component parent = editor.getParent();
    if (parent instanceof JLayeredPane) {
        parent = parent.getParent();
    }
    if (parent instanceof JViewport) {
        this.viewport = (JViewport)parent;
        // see #219015; need to listen on viewport change to show/hide the tooltip
        viewport.addChangeListener(WeakListeners.change(this, viewport));
    }
    TextUI ui = editor.getUI();
    if (ui instanceof BaseTextUI) {
        baseUI = (BaseTextUI)ui;
        MasterMatcher.get(editor).addMatchListener(this);
    } else {
        baseUI = null;
    }
    setMaximumSize(new Dimension(Integer.MAX_VALUE, Integer.MAX_VALUE));
    updatePreferredSize();
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}
 

public static Color getTextBackgroundFillColor(JComponent comp) {
    Color backgroundFillColor = SubstanceColorUtilities.getBackgroundFillColor(comp);

    JTextComponent componentForTransitions = SubstanceCoreUtilities
            .getTextComponentForTransitions(comp);

    if (componentForTransitions != null) {
        ComponentUI ui = componentForTransitions.getUI();
        if (ui instanceof TransitionAwareUI) {
            TransitionAwareUI trackable = (TransitionAwareUI) ui;
            StateTransitionTracker stateTransitionTracker = trackable.getTransitionTracker();

            Color lighterFill = SubstanceColorUtilities.getLighterColor(backgroundFillColor,
                    0.4f);
            lighterFill = SubstanceColorUtilities.getInterpolatedColor(lighterFill,
                    backgroundFillColor, 0.6);

            float selectionStrength = stateTransitionTracker
                    .getFacetStrength(ComponentStateFacet.SELECTION);
            float rolloverStrength = stateTransitionTracker
                    .getFacetStrength(ComponentStateFacet.ROLLOVER);
            backgroundFillColor = SubstanceColorUtilities.getInterpolatedColor(lighterFill,
                    backgroundFillColor, Math.max(selectionStrength, rolloverStrength) / 4.0f);
        }
    }
    return backgroundFillColor;
}
 

static int getShrinkageFor(final JTextComponent jc, final int height) {
    if (jc == null) return 0;
    final TextUI ui = jc.getUI();
    if (ui == null) return 0;
    final Dimension size = ui.getPreferredSize(jc);
    if (size == null) return 0;
    final int shrinkage = size.height - height;
    return (shrinkage < 0) ? 0 : (shrinkage > 3) ? 3 : shrinkage;
}
 

/**
 * Get first view in the hierarchy that is an instance of the given class.
 * It allows to skip various wrapper-views around the doc-view that holds
 * the child views for the lines.
 *
 * @param component component from which the root view is fetched.
 * @param rootViewClass class of the view to return.
 * @return view being instance of the requested class or null if there
 *  is not one.
 */
public static View getRootView(JTextComponent component, Class rootViewClass) {
    View view = null;
    TextUI textUI = component.getUI();
    if (textUI != null) {
        view = textUI.getRootView(component);
        while (view != null && !rootViewClass.isInstance(view)
            && view.getViewCount() == 1 // must be wrapper view
        ) {
            view = view.getView(0); // get the only child
        }
    }
    
    return view;
}
 

protected static void installSearchField(final JTextComponent c) {
    final SearchFieldBorder border = getSearchTextFieldBorder();
    c.setBorder(border);
    c.setLayout(border.getCustomLayout());
    c.add(getFindButton(c), BorderLayout.WEST);
    c.add(getCancelButton(c), BorderLayout.EAST);
    c.add(getPromptLabel(c), BorderLayout.CENTER);

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(border);
    }
}
 

static int getShrinkageFor(final JTextComponent jc, final int height) {
    if (jc == null) return 0;
    final TextUI ui = jc.getUI();
    if (ui == null) return 0;
    final Dimension size = ui.getPreferredSize(jc);
    if (size == null) return 0;
    final int shrinkage = size.height - height;
    return (shrinkage < 0) ? 0 : (shrinkage > 3) ? 3 : shrinkage;
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}
 

static int getShrinkageFor(final JTextComponent jc, final int height) {
    if (jc == null) return 0;
    final TextUI ui = jc.getUI();
    if (ui == null) return 0;
    final Dimension size = ui.getPreferredSize(jc);
    if (size == null) return 0;
    final int shrinkage = size.height - height;
    return (shrinkage < 0) ? 0 : (shrinkage > 3) ? 3 : shrinkage;
}
 

protected static void uninstallSearchField(final JTextComponent c) {
    c.setBorder(UIManager.getBorder("TextField.border"));
    c.removeAll();

    final TextUI ui = c.getUI();
    if (ui instanceof AquaTextFieldUI) {
        ((AquaTextFieldUI)ui).setPaintingDelegate(null);
    }
}