tbx  0.7.6
valuechangedlistener.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 #ifndef TBX_VALUECHANGEDLISTENER_H_
26 #define TBX_VALUECHANGEDLISTENER_H_
27 
28 #include "listener.h"
29 #include "eventinfo.h"
30 
31 namespace tbx
32 {
39  {
40  public:
48  EventInfo(id_block, data) {};
49 
55  int value() const {return _data.word[4];}
56  };
57 
62  {
63  public:
67  virtual void value_changed(ValueChangedEvent &event) = 0;
68  };
69 }
70 
71 #endif /* TBX_VALUECHANGEDLISTENER_H_ */
tbx
A library for creating RISC OS toolbox applications.
Definition: abouttobeshownlistener.cc:35
tbx::EventInfo::id_block
const IdBlock & id_block() const
IdBlock for the current event.
Definition: eventinfo.h:71
tbx::EventInfo::_data
PollBlock & _data
raw data from the event
Definition: eventinfo.h:53
tbx::PollBlock
Structure holding the raw data from a call to Wimp_Poll.
Definition: pollinfo.h:72
tbx::ValueChangedEvent::ValueChangedEvent
ValueChangedEvent(IdBlock &id_block, PollBlock &data)
Construct the event from Toolbox and WIMP event data.
Definition: valuechangedlistener.h:47
tbx::ValueChangedEvent
Event details for a change of an integer value in a gadget.
Definition: valuechangedlistener.h:39
tbx::IdBlock
Information passed back by the Toolbox with each toolbox event providing information on where the eve...
Definition: pollinfo.h:42
tbx::ValueChangedListener::value_changed
virtual void value_changed(ValueChangedEvent &event)=0
The value has been changed.
tbx::Listener
Base class for all toolbox event listeners.
Definition: listener.h:34
tbx::ValueChangedListener
Listener for value changed events.
Definition: valuechangedlistener.h:62
tbx::PollBlock::word
int word[64]
Array containing information return from Wimp_Poll.
Definition: pollinfo.h:76
tbx::ValueChangedEvent::value
int value() const
Get the value of the gadget that delivered the event.
Definition: valuechangedlistener.h:55
tbx::EventInfo
Class to provide information on a toolbox event.
Definition: eventinfo.h:49