/*
* {{{ header & license
* Copyright (c) 2007 Vianney le Clément
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.simple.xhtml.swt;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Device;
import org.eclipse.swt.widgets.Control;
import org.xhtmlrenderer.css.style.CalculatedStyle;
import org.xhtmlrenderer.css.parser.FSColor;
import org.xhtmlrenderer.css.parser.FSRGBColor;
import org.xhtmlrenderer.extend.UserAgentCallback;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.simple.xhtml.FormControl;
import org.xhtmlrenderer.simple.xhtml.FormControlAdapter;
import org.xhtmlrenderer.swt.BasicRenderer;
import org.xhtmlrenderer.swt.SWTFSFont;
public abstract class SWTXhtmlControl implements SWTFormControl {
private FormControl _control;
protected Control _swtControl;
private Color _foreground, _background;
public SWTXhtmlControl(FormControl control, BasicRenderer parent,
LayoutContext c, CalculatedStyle style, UserAgentCallback uac) {
_control = control;
_swtControl = createSWTControl(control, parent, c, style, uac);
// apply CSS styles
_swtControl.setFont(((SWTFSFont) style.getFSFont(c)).getSWTFont());
if (style.getColor() != null) {
_foreground = createFromAWT(parent.getDisplay(), style.getColor());
_swtControl.setForeground(_foreground);
}
if (style.getBackgroundColor() != null) {
_background = createFromAWT(parent.getDisplay(), style
.getBackgroundColor());
_swtControl.setBackground(_background);
}
// some HTML attributes
if (!control.isEnabled()) {
_swtControl.setEnabled(false);
}
String title = control.getElement().getAttribute("title");
if (title.length() != 0) {
_swtControl.setToolTipText(title);
}
// enable/disable handler
control.addFormControlListener(new FormControlAdapter() {
public void enabled(FormControl control) {
_swtControl.setEnabled(control.isEnabled());
}
});
}
private static Color createFromAWT(Device device, FSColor fsColor) {
if (fsColor instanceof FSRGBColor) {
FSRGBColor fsrgbcolor = ((FSRGBColor) fsColor);
return new Color(device, fsrgbcolor.getRed(), fsrgbcolor.getGreen(),
fsrgbcolor.getBlue());
} else {
throw new IllegalArgumentException("Don't currently support CMYK in SWT rendering");
}
}
protected abstract Control createSWTControl(FormControl control,
BasicRenderer parent, LayoutContext c, CalculatedStyle style,
UserAgentCallback uac);
public void dispose() {
_swtControl.dispose();
if (_foreground != null) {
_foreground.dispose();
}
if (_background != null) {
_background.dispose();
}
}
public Control getSWTControl() {
return _swtControl;
}
public FormControl getFormControl() {
return _control;
}
}