/* LICENSE BLOCK
Part of mde: a Modular D game-oriented Engine
Copyright © 2007-2008 Diggory Hardy

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/>. */

/// GUI Widget module.
module mde.gui.widget.createWidget;

// Widgets to create:
import mde.gui.widget.layout;
import mde.gui.widget.Widget;

import mde.gui.exception : WidgetDataException;

//BEGIN createWidget
/// Widget types. Start high so they can be reordered easily later.
enum WIDGET_TYPE : int {
    BOX = 1001, GRID, BUTTON
}

/** Create a widget of type data[0] (see enum WIDGET_TYPES) for _window window, with initialisation
* data [1..$]. */
IWidget createWidget (IWindow window, IParentWidget parent, int[] data)
in {
    assert (window !is null, "createWidget: window is null");
    assert (parent !is null, "createWidget: parent is null");
} body {
    if (data.length < 1) throw new WidgetDataException ("No widget data");
    int type = data[0];     // type is first element of data
    data = data[1..$];      // the rest is passed to the Widget
    
    if (type == WIDGET_TYPE.BOX) return new BoxWidget (window, parent, data);
    else if (type == WIDGET_TYPE.GRID) return new GridWidget (window, parent, data);
    else if (type == WIDGET_TYPE.BUTTON) return new ButtonWidget (window, parent, data);
    else throw new WidgetDataException ("Bad widget type");
}
//END createWidget