/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.gallery;
import static org.eclipse.draw2d.PositionConstants.BOTTOM;
import static org.eclipse.draw2d.PositionConstants.CENTER;
import static org.eclipse.draw2d.PositionConstants.EAST;
import static org.eclipse.draw2d.PositionConstants.RIGHT;
import static org.eclipse.draw2d.PositionConstants.SOUTH;
import static org.eclipse.draw2d.PositionConstants.WEST;
import org.eclipse.draw2d.AbstractLabeledBorder;
import org.eclipse.draw2d.ColorConstants;
import org.eclipse.draw2d.Graphics;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.PositionConstants;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Insets;
import org.eclipse.swt.graphics.Color;
/**
* @author Frank Shaka
*/
public class TitleBorder extends AbstractLabeledBorder {
private int textAlignment = PositionConstants.CENTER;
private int textPlacement = PositionConstants.NORTH;
private Insets textPadding = new Insets(1, 2, 1, 2);
private Color fillColor = null;
private static final Dimension NO_EXTENT = new Dimension(0, 0);
/**
*
*/
public TitleBorder() {
this(""); //$NON-NLS-1$
}
/**
* @param s
*/
public TitleBorder(String s) {
super(s);
setTextColor(ColorConstants.listForeground);
}
/**
* @see org.eclipse.draw2d.AbstractLabeledBorder#calculateInsets(org.eclipse.draw2d.IFigure)
*/
@Override
protected Insets calculateInsets(IFigure figure) {
switch (getTextPlacement()) {
case EAST:
return new Insets(0, getTextExtents(figure).width
+ getTextPadding().getWidth(), 0, 0);
case SOUTH:
return new Insets(0, 0, getTextExtents(figure).height
+ getTextPadding().getHeight(), 0);
case WEST:
return new Insets(0, 0, 0, getTextExtents(figure).width
+ getTextPadding().getWidth());
default:
return new Insets(getTextExtents(figure).height
+ getTextPadding().getHeight(), 0, 0, 0);
}
}
/**
* @see org.eclipse.draw2d.AbstractLabeledBorder#getTextExtents(org.eclipse.draw2d.IFigure)
*/
@Override
protected Dimension getTextExtents(IFigure f) {
if (getLabel() == null || "".equals(getLabel())) { //$NON-NLS-1$
return NO_EXTENT;
}
return super.getTextExtents(f);
}
/**
* @see org.eclipse.draw2d.Border#paint(org.eclipse.draw2d.IFigure,
* org.eclipse.draw2d.Graphics, org.eclipse.draw2d.geometry.Insets)
*/
public void paint(IFigure figure, Graphics graphics, Insets insets) {
tempRect.setBounds(getPaintRectangle(figure, insets));
Insets padding = getTextPadding();
Dimension extent = getTextExtents(figure);
int placement = getTextPlacement();
switch (placement) {
case EAST:
tempRect.width = Math.min(tempRect.width, extent.width
+ padding.getWidth());
break;
case SOUTH:
int h = Math.min(tempRect.height, extent.height
+ padding.getHeight());
tempRect.y = tempRect.bottom() - h;
tempRect.height = h;
break;
case WEST:
int w = Math.min(tempRect.width, extent.width + padding.getWidth());
tempRect.x = tempRect.right() - w;
tempRect.width = w;
break;
default:
tempRect.height = Math.min(tempRect.height, extent.height
+ padding.getHeight());
}
graphics.clipRect(tempRect);
Color bgColor = getBackgroundColor();
if (bgColor != null) {
graphics.setBackgroundColor(bgColor);
graphics.fillRectangle(tempRect);
}
int x = tempRect.x + padding.left;
int y = tempRect.y + padding.top;
if (placement == EAST || placement == WEST) {
int freeSpace = tempRect.height - padding.getHeight()
- extent.height;
switch (getTextAlignment()) {
case CENTER:
y += freeSpace / 2;
break;
case BOTTOM:
y += freeSpace;
break;
}
} else {
int freeSpace = tempRect.width - padding.getWidth() - extent.width;
switch (getTextAlignment()) {
case CENTER:
x += freeSpace / 2;
break;
case RIGHT:
x += freeSpace;
break;
}
}
graphics.setFont(getFont(figure));
graphics.setForegroundColor(getTextColor());
graphics.drawText(getLabel(), x, y);
}
/**
* @return the textAlignment
*/
public int getTextAlignment() {
return textAlignment;
}
/**
* @return the textPlacement
*/
public int getTextPlacement() {
return textPlacement;
}
/**
* @return the textPadding
*/
public Insets getTextPadding() {
return textPadding;
}
/**
* @return the background color
*/
public Color getBackgroundColor() {
return fillColor;
}
/**
* Sets the alignment of the Text relative to the figure's client area. The
* text alignment must be orthogonal to the text placement. For example, if
* the placement is EAST, then the text can be aligned using TOP, CENTER, or
* BOTTOM. Valid values are:
* <UL>
* <LI><EM>{@link PositionConstants#CENTER}</EM>
* <LI>{@link PositionConstants#TOP}
* <LI>{@link PositionConstants#BOTTOM}
* <LI>{@link PositionConstants#LEFT}
* <LI>{@link PositionConstants#RIGHT}
* </UL>
*
* @see #setTextPlacement(int)
* @param textAlignment
* the text alignment to set
*/
public void setTextAlignment(int textAlignment) {
this.textAlignment = textAlignment;
}
/**
* Sets the placement of text relative to the figure's client area. Valid
* values are:
* <UL>
* <LI><EM>{@link PositionConstants#EAST}</EM>
* <LI>{@link PositionConstants#NORTH}
* <LI>{@link PositionConstants#SOUTH}
* <LI>{@link PositionConstants#WEST}
* </UL>
*
* @param textPlacement
* the text placement to set
*/
public void setTextPlacement(int textPlacement) {
this.textPlacement = textPlacement;
invalidate();
}
/**
* Sets the padding around the text.
*
* @param textPadding
* the text padding to set
*/
public void setTextPadding(Insets textPadding) {
this.textPadding = textPadding;
invalidate();
}
public void setTextPadding(int all) {
this.textPadding = new Insets(all);
invalidate();
}
/**
* Sets the background color of the area within the boundaries of this
* border. If the argument is <code>null</code>, the title area will not
* be filled.
*
* @param color
* the background color to set, may be <code>null</code>
*/
public void setBackgroundColor(Color color) {
this.fillColor = color;
}
}
