/*
* Copyright (c) 2009 Kathryn Huxtable and Kenneth Orr.
*
* This file is part of the SeaGlass Pluggable Look and Feel.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* $Id: org.eclipse.jdt.ui.prefs 172 2009-10-06 18:31:12Z kathryn@kathrynhuxtable.org $
*/
package com.seaglasslookandfeel.ui;
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.beans.PropertyChangeEvent;
import javax.swing.JComponent;
import javax.swing.plaf.ComponentUI;
import javax.swing.plaf.UIResource;
import javax.swing.plaf.synth.SynthContext;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
import javax.swing.text.StyledDocument;
import com.seaglasslookandfeel.SeaGlassContext;
/**
* SeaGlass TextPaneUI delegate.
*
* Based on SynthTextPaneUI by Georges Saab and David Karlton.
*
* The only reason this exists is that we had to modify SynthTextPaneUI.
*
* @see javax.swing.plaf.synth.SynthTextPaneUI
*/
public class SeaGlassTextPaneUI extends SeaGlassEditorPaneUI {
/**
* Creates a UI for the JTextPane.
*
* @param c the JTextPane object
* @return the UI object
*/
public static ComponentUI createUI(JComponent c) {
return new SeaGlassTextPaneUI();
}
/**
* Fetches the name used as a key to lookup properties through the
* UIManager. This is used as a prefix to all the standard
* text properties.
*
* @return the name ("TextPane")
*/
@Override
protected String getPropertyPrefix() {
return "TextPane";
}
/**
* Installs the UI for a component. This does the following
* things.
* <ol>
* <li>
* Sets opaqueness of the associated component according to its style,
* if the opaque property has not already been set by the client program.
* <li>
* Installs the default caret and highlighter into the
* associated component. These properties are only set if their
* current value is either {@code null} or an instance of
* {@link UIResource}.
* <li>
* Attaches to the editor and model. If there is no
* model, a default one is created.
* <li>
* Creates the view factory and the view hierarchy used
* to represent the model.
* </ol>
*
* @param c the editor component
* @see javax.swing.plaf.basic.BasicTextUI#installUI
* @see ComponentUI#installUI
*/
@Override
public void installUI(JComponent c) {
super.installUI(c);
updateForeground(c.getForeground());
updateFont(c.getFont());
}
/**
* This method gets called when a bound property is changed
* on the associated JTextComponent. This is a hook
* which UI implementations may change to reflect how the
* UI displays bound properties of JTextComponent subclasses.
* If the font, foreground or document has changed, the
* the appropriate property is set in the default style of
* the document.
*
* @param evt the property change event
*/
@Override
protected void propertyChange(PropertyChangeEvent evt) {
super.propertyChange(evt);
String name = evt.getPropertyName();
if (name.equals("foreground")) {
updateForeground((Color)evt.getNewValue());
} else if (name.equals("font")) {
updateFont((Font)evt.getNewValue());
} else if (name.equals("document")) {
JComponent comp = getComponent();
updateForeground(comp.getForeground());
updateFont(comp.getFont());
}
}
/**
* Update the color in the default style of the document.
*
* @param color the new color to use or null to remove the color attribute
* from the document's style
*/
private void updateForeground(Color color) {
StyledDocument doc = (StyledDocument)getComponent().getDocument();
Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);
if (style == null) {
return;
}
if (color == null) {
style.removeAttribute(StyleConstants.Foreground);
} else {
StyleConstants.setForeground(style, color);
}
}
/**
* Update the font in the default style of the document.
*
* @param font the new font to use or null to remove the font attribute
* from the document's style
*/
private void updateFont(Font font) {
StyledDocument doc = (StyledDocument)getComponent().getDocument();
Style style = doc.getStyle(StyleContext.DEFAULT_STYLE);
if (style == null) {
return;
}
if (font == null) {
style.removeAttribute(StyleConstants.FontFamily);
style.removeAttribute(StyleConstants.FontSize);
style.removeAttribute(StyleConstants.Bold);
style.removeAttribute(StyleConstants.Italic);
} else {
StyleConstants.setFontFamily(style, font.getName());
StyleConstants.setFontSize(style, font.getSize());
StyleConstants.setBold(style, font.isBold());
StyleConstants.setItalic(style, font.isItalic());
}
}
@Override
void paintBackground(SynthContext context, Graphics g, JComponent c) {
((SeaGlassContext)context).getPainter().paintTextPaneBackground(context, g, 0, 0,
c.getWidth(), c.getHeight());
}
/**
* @inheritDoc
*/
@Override
public void paintBorder(SynthContext context, Graphics g, int x,
int y, int w, int h) {
((SeaGlassContext)context).getPainter().paintTextPaneBorder(context, g, x, y, w, h);
}
}