/*
* Copyright 2008 Ayman Al-Sairafi ayman.alsairafi@gmail.com
*
* 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.
*/
package jsyntaxpane.components;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JEditorPane;
import javax.swing.text.BadLocationException;
import jsyntaxpane.SyntaxView;
import jsyntaxpane.actions.ActionUtils;
/**
*
* @author JPEXS
*/
public class LineNumbersBreakpointsRuler extends LineNumbersRuler {
@Override
public void install(final JEditorPane editor) {
super.install(editor);
if (editor instanceof LineMarkerPainter) {
((LineMarkerPainter) editor).installLineMarker(this);
}
removeMouseListener(mouseListener);
mouseListener = new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
Point p = e.getPoint();
p.x = 0;
int loc = editor.viewToModel(p);
int currentLine = -1;
try {
currentLine = ActionUtils.getLineNumber(editor, loc) + 1;
} catch (BadLocationException ex) {
//ignore
}
if (currentLine > -1 && (editor instanceof BreakPointListener)) {
((BreakPointListener) editor).toggled(currentLine);
}
}
};
addMouseListener(mouseListener);
}
@Override
public void paintComponent(Graphics g) {
super.paintComponent(g);
if (editor instanceof LineMarkerPainter) {
FontMetrics fontMetrics = editor.getFontMetrics(editor.getFont());
int lh = fontMetrics.getHeight();
Rectangle bounds = g.getClipBounds();
int minY = bounds.y;
int maxY = minY + bounds.height;
int maxLines = ActionUtils.getLineCount(editor);
Insets insets = getInsets();
int currentLine = -1;
try {
// get current line, and add one as we start from 1 for the display
currentLine = ActionUtils.getLineNumber(editor, editor.getCaretPosition()) + 1;
} catch (BadLocationException ex) {
// this wont happen, even if it does, we can ignore it and we will not have
// a current line to worry about...
}
for (int line = 1; line <= maxLines; line++) {
int y = line * lh;
if (y < minY) {
continue;
}
if (y - lh > maxY) {
break;
}
((LineMarkerPainter) editor).paintLineMarker(g, line, insets.left, y - lh + fontMetrics.getDescent() - 1, y, lh, currentLine == line, maxLines);
}
}
}
}