tbx  0.7.3
palettechangedlistener.h
1 /*
2  * tbx RISC OS toolbox library
3  *
4  * Copyright (C) 2010 Alan Buckley All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22  * THE SOFTWARE.
23  */
24 /*
25  * palettechangelistener.h
26  *
27  * Created on: 25 Nov 2010
28  * Author: alanb
29  */
30 
31 #ifndef TBX_PALETTECHANGEDLISTENER_H_
32 #define TBX_PALETTECHANGEDLISTENER_H_
33 
34 #include "wimpmessagelistener.h"
35 
36 namespace tbx {
37 
38 class Application;
45 {
46 private:
47  class MessagePaletteChangedListener : public WimpRecordedMessageListener
48  {
49  PaletteChangedListener *_palette_changed_listener;
50  public:
51  MessagePaletteChangedListener(PaletteChangedListener *mcl) : _palette_changed_listener(mcl) {};
52  virtual ~MessagePaletteChangedListener() {};
53  // Just forward all messages to the PaletteChangedListener palette_changed
54  virtual void recorded_message(WimpMessageEvent &event) {_palette_changed_listener->palette_changed();}
55 
56  } _message_listener;
57  friend class tbx::Application;
58 public:
59  PaletteChangedListener() : _message_listener(this) {};
60  virtual ~PaletteChangedListener() {};
61 
65  virtual void palette_changed() = 0;
66 };
67 
68 }
69 
70 #endif /* TBX_PALETTECHANGEDLISTENER_H_ */
Listener to handle WimpRecordedMessages (event code 18)
Definition: wimpmessagelistener.h:269
The main application class.
Definition: application.h:78
Wimp message received event.
Definition: wimpmessagelistener.h:209
Class to simplify handling of Quit WIMP message.
Definition: palettechangedlistener.h:44
virtual void palette_changed()=0
Called when the application has be told to palette has been changed by the desktop.
Base class for all toolbox event listeners.
Definition: listener.h:33