mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-22 01:39:57 +00:00
83 lines
2.2 KiB
C++
83 lines
2.2 KiB
C++
/* ScummVM - Scumm Interpreter
|
|
* Copyright (C) 2002-2005 The ScummVM project
|
|
*
|
|
* 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, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
* $Header$
|
|
*/
|
|
|
|
#ifndef GUI_OBJECT_H
|
|
#define GUI_OBJECT_H
|
|
|
|
namespace GUI {
|
|
|
|
class CommandReceiver;
|
|
class CommandSender;
|
|
|
|
class CommandReceiver {
|
|
friend class CommandSender;
|
|
protected:
|
|
virtual void handleCommand(CommandSender *sender, uint32 cmd, uint32 data) {}
|
|
};
|
|
|
|
class CommandSender {
|
|
// TODO - allow for multiple targets, i.e. store targets in a list
|
|
// and add methods addTarget/removeTarget.
|
|
protected:
|
|
CommandReceiver *_target;
|
|
public:
|
|
CommandSender(CommandReceiver *target) : _target(target) {}
|
|
|
|
void setTarget(CommandReceiver *target) { _target = target; }
|
|
CommandReceiver *getTarget() const { return _target; }
|
|
|
|
virtual void sendCommand(uint32 cmd, uint32 data) {
|
|
if (_target && cmd)
|
|
_target->handleCommand(this, cmd, data);
|
|
}
|
|
};
|
|
|
|
class Widget;
|
|
|
|
class GuiObject : public CommandReceiver {
|
|
friend class Widget;
|
|
protected:
|
|
int16 _x, _y;
|
|
uint16 _w, _h;
|
|
|
|
Widget *_firstWidget;
|
|
|
|
public:
|
|
GuiObject(int x, int y, int w, int h) : _x(x), _y(y), _w(w), _h(h), _firstWidget(0) { }
|
|
|
|
virtual int16 getAbsX() const { return _x; }
|
|
virtual int16 getAbsY() const { return _y; }
|
|
virtual int16 getChildX() const { return getAbsX(); }
|
|
virtual int16 getChildY() const { return getAbsY(); }
|
|
virtual uint16 getWidth() const { return _w; }
|
|
virtual uint16 getHeight() const { return _h; }
|
|
|
|
virtual bool isVisible() const = 0;
|
|
|
|
virtual void draw() = 0;
|
|
|
|
protected:
|
|
virtual void releaseFocus() = 0;
|
|
};
|
|
|
|
} // End of namespace GUI
|
|
|
|
#endif
|