/*
* @(#)FontSizeHandle.java
*
* Copyright (c) 1996-2010 The authors and contributors of JHotDraw.
* You may not use, copy or modify this file, except in compliance with the
* accompanying license terms.
*/
package org.jhotdraw.draw.handle;
import org.jhotdraw.draw.locator.FontSizeLocator;
import org.jhotdraw.draw.locator.Locator;
import org.jhotdraw.draw.*;
import javax.swing.undo.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.geom.*;
import org.jhotdraw.util.ResourceBundleUtil;
import static org.jhotdraw.draw.AttributeKeys.*;
/**
* A {@link Handle} which can be used to change the font size of a
* {@link TextHolderFigure}.
*
* @author Werner Randelshofer
* @version $Id$
*/
public class FontSizeHandle extends LocatorHandle {
private float oldSize;
private float newSize;
private Object restoreData;
/** Creates a new instance. */
public FontSizeHandle(TextHolderFigure owner) {
super(owner, new FontSizeLocator());
}
public FontSizeHandle(TextHolderFigure owner, Locator locator) {
super(owner, locator);
}
/**
* Draws this handle.
*/
@Override
public void draw(Graphics2D g) {
drawDiamond(g,
getEditor().getHandleAttribute(HandleAttributeKeys.ATTRIBUTE_HANDLE_FILL_COLOR),
getEditor().getHandleAttribute(HandleAttributeKeys.ATTRIBUTE_HANDLE_STROKE_COLOR));
}
@Override
public Cursor getCursor() {
return Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR);
}
@Override
protected Rectangle basicGetBounds() {
Rectangle r = new Rectangle(getLocation());
int h = getHandlesize();
r.x -= h / 2;
r.y -= h / 2;
r.width = r.height = h;
return r;
}
@Override
public void trackStart(Point anchor, int modifiersEx) {
TextHolderFigure textOwner = (TextHolderFigure) getOwner();
oldSize = newSize = textOwner.getFontSize();
restoreData = textOwner.getAttributesRestoreData();
}
@Override
public void trackStep(Point anchor, Point lead, int modifiersEx) {
TextHolderFigure textOwner = (TextHolderFigure) getOwner();
Point2D.Double anchor2D = view.viewToDrawing(anchor);
Point2D.Double lead2D = view.viewToDrawing(lead);
if (textOwner.get(TRANSFORM) != null) {
try {
textOwner.get(TRANSFORM).inverseTransform(anchor2D, anchor2D);
textOwner.get(TRANSFORM).inverseTransform(lead2D, lead2D);
} catch (NoninvertibleTransformException ex) {
ex.printStackTrace();
}
}
newSize = (float) Math.max(1, oldSize + lead2D.y - anchor2D.y);
textOwner.willChange();
textOwner.setFontSize(newSize);
textOwner.changed();
}
@Override
public void trackEnd(Point anchor, Point lead, int modifiersEx) {
final TextHolderFigure textOwner = (TextHolderFigure) getOwner();
final Object editRestoreData = restoreData;
final float editNewSize = newSize;
UndoableEdit edit = new AbstractUndoableEdit() {
private static final long serialVersionUID = 1L;
@Override
public String getPresentationName() {
ResourceBundleUtil labels =
ResourceBundleUtil.getBundle("org.jhotdraw.draw.Labels");
return labels.getString("attribute.fontSize.text");
}
@Override
public void undo() {
super.undo();
textOwner.willChange();
textOwner.restoreAttributesTo(editRestoreData);
textOwner.changed();
}
@Override
public void redo() {
super.redo();
textOwner.willChange();
textOwner.setFontSize(newSize);
textOwner.changed();
}
};
fireUndoableEditHappened(edit);
}
@Override
public void keyPressed(KeyEvent evt) {
final TextHolderFigure textOwner = (TextHolderFigure) getOwner();
oldSize = newSize = textOwner.getFontSize();
switch (evt.getKeyCode()) {
case KeyEvent.VK_UP:
if (newSize > 1) {
newSize -= 1f;
}
evt.consume();
break;
case KeyEvent.VK_DOWN:
newSize++;
evt.consume();
break;
case KeyEvent.VK_LEFT:
evt.consume();
break;
case KeyEvent.VK_RIGHT:
evt.consume();
break;
}
if (newSize != oldSize) {
restoreData = textOwner.getAttributesRestoreData();
textOwner.willChange();
textOwner.setFontSize(newSize);
textOwner.changed();
final Object editRestoreData = restoreData;
final float editNewSize = newSize;
UndoableEdit edit = new AbstractUndoableEdit() {
private static final long serialVersionUID = 1L;
@Override
public String getPresentationName() {
ResourceBundleUtil labels =
ResourceBundleUtil.getBundle("org.jhotdraw.draw.Labels");
return labels.getString("attribute.fontSize");
}
@Override
public void undo() {
super.undo();
textOwner.willChange();
textOwner.restoreAttributesTo(editRestoreData);
textOwner.changed();
}
@Override
public void redo() {
super.redo();
textOwner.willChange();
textOwner.setFontSize(newSize);
textOwner.changed();
}
};
fireUndoableEditHappened(edit);
}
}
@Override
public String getToolTipText(Point p) {
return ResourceBundleUtil.getBundle("org.jhotdraw.draw.Labels").getString("handle.fontSize.toolTipText");
}
}