/*
* Freeplane - mind map editor
* Copyright (C) 2010 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
*
* This file is created by Stefan Ott in 2010.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.plugin.latex;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Insets;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.Icon;
import javax.swing.JComponent;
import javax.swing.SwingUtilities;
import org.freeplane.core.ui.components.UITools;
import org.freeplane.core.util.TextUtils;
import org.freeplane.features.map.NodeModel;
import org.freeplane.features.mode.Controller;
import org.freeplane.view.swing.map.MainView;
import org.freeplane.view.swing.map.MapView;
import org.scilab.forge.jlatexmath.TeXConstants;
import org.scilab.forge.jlatexmath.TeXFormula;
class LatexViewer extends JComponent {
static final int DEFAULT_FONT_SIZE = Math.round(10 * UITools.FONT_SCALE_FACTOR);
static String editorTitle = null;
/**
*
*/
private static final long serialVersionUID = 1L;
private float zoom = 0f;
@SuppressWarnings("unused")
final private LatexNodeHook nodeHook;
private LatexExtension model;
private TeXFormula teXFormula;
LatexViewer(final LatexNodeHook nodeHook, final LatexExtension latexExtension) {
this.nodeHook = nodeHook;
setModel(latexExtension);
if (LatexViewer.editorTitle == null) {
LatexViewer.editorTitle = TextUtils.getText("plugins/latex/LatexNodeHook.editorTitle");
}
addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(final MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON1 && e.getClickCount() == 2
&& Controller.getCurrentModeController().getModeName() == "MindMap") {
NodeModel node = null;
if (e.getSource().getClass() == LatexViewer.class) {
final LatexViewer lv = (LatexViewer) e.getSource();
for (int i = 0; i < lv.getParent().getComponentCount(); i++) {
if (lv.getParent().getComponent(i) instanceof MainView) {
final MainView mv = (MainView) lv.getParent().getComponent(i);
node = mv.getNodeView().getModel();
break;
}
}
if (node == null) {
node = Controller.getCurrentModeController().getMapController().getSelectedNode();
}
nodeHook.editLatexInEditor(node);
e.consume();
return;
}
}
}
});
}
private void calculateSize() {
final MapView mapView = (MapView) SwingUtilities.getAncestorOfClass(MapView.class, this);
final float mapZoom = mapView.getZoom();
if (mapZoom == zoom) {
return;
}
zoom = mapZoom;
final Icon latexIcon = teXFormula.createTeXIcon(TeXConstants.STYLE_DISPLAY, DEFAULT_FONT_SIZE * zoom);
final Insets insets = getInsets();
final Dimension dimension = new Dimension(latexIcon.getIconWidth() + insets.left + insets.right,
latexIcon.getIconHeight() + insets.top + insets.bottom);
setPreferredSize(dimension);
}
@Override
public void paint(final Graphics g) {
final Icon latexIcon = teXFormula.createTeXIcon(TeXConstants.STYLE_DISPLAY, DEFAULT_FONT_SIZE * zoom);
final Insets insets = getInsets();
latexIcon.paintIcon(this, g, insets.left, insets.top);
super.paint(g);
}
public void setModel(final LatexExtension latexExtension) {
model = latexExtension;
try {
teXFormula = new TeXFormula("\\begin{array}{l} \\raisebox{0}{ "
+model.getEquation()
+" } \\end{array}"
);
teXFormula.createTeXIcon(TeXConstants.STYLE_DISPLAY, DEFAULT_FONT_SIZE);
}
catch (final Exception e) {
try {
teXFormula = new TeXFormula("\\mbox{" + e.getMessage() + "}");
teXFormula.createTeXIcon(TeXConstants.STYLE_DISPLAY, DEFAULT_FONT_SIZE);
}
catch (final Exception e1) {
teXFormula = new TeXFormula("\\mbox{Can not parse given equation}");
}
}
zoom = 0;
revalidate();
repaint();
}
@Override
public Dimension getPreferredSize() {
calculateSize();
return super.getPreferredSize();
}
}