1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
/****************************************************************************
* NxWidgets/libnxwidgets/include/cnxserver.hxx
*
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX, NxWidgets, nor the names of its contributors
* me be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
#ifndef __INCLUDE_CNXSERVER_HXX
#define __INCLUDE_CNXSERVER_HXX
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <semaphore.h>
#include <nuttx/nx/nx.h>
#include "cnxwindow.hxx"
#include "cnxtkwindow.hxx"
#include "cbgwindow.hxx"
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/****************************************************************************
* Implementation Classes
****************************************************************************/
#if defined(__cplusplus)
namespace NXWidgets
{
/**
* Forward references
*/
class CBgWindow;
/**
* This class represents the NX server. It includes methods to connect to
* and disconnect form the NX server, methods to manage the background, and
* "factory" methods to create window objects on the NX server. NXWidget
* objects them may be created on the window objects.
*/
class CNxServer
{
private:
FAR NX_DRIVERTYPE *m_hDevice; /**< LCD/Framebuffer device handle */
NXHANDLE m_hNxServer; /**< NX server handle */
#ifdef CONFIG_NX_MULTIUSER
volatile bool m_running; /**< True: The listener thread is running */
volatile bool m_connected; /**< True: Connected to the server */
volatile bool m_stop; /**< True: Waiting for the listener thread to stop */
sem_t m_connsem; /**< Wait for server connection */
#endif
static uint8_t m_nServers; /**< The number of NX server instances */
/**
* NX server thread. This is the entry point into the server thread that
* serializes the multi-threaded accesses to the display.
*/
#ifdef CONFIG_NX_MULTIUSER
static int server(int argc, char *argv[]);
#endif
/**
* NX listener thread. This is the entry point of a thread that listeners for and
* dispatches events from the NX server.
*/
#ifdef CONFIG_NX_MULTIUSER
static FAR void *listener(FAR void *arg);
#endif
public:
/**
* CNXServer constructor. The CNxServer is a normally singleton. However, that
* not enforced: This constructor could run more than one in the situation where
* there are multiple physical displays. However, that configuration has never
* been texted.
*/
CNxServer(void);
/**
* CNXServer destructor
*/
~CNxServer(void);
/**
* Connect to the NX Server
*/
virtual bool connect(void);
/**
* Disconnect from the NX Server
*/
virtual void disconnect(void);
/**
* Get the NX server handle
*
* @return The NX server handler (NULL is not connected)
*/
inline NXHANDLE getServer(void)
{
return m_hNxServer;
}
/**
* Test if we are connected to the NX server.
*
* @return True is connected; false is not connected.
*/
inline bool connected(void)
{
#ifdef CONFIG_NX_MULTIUSER
return m_connected;
#else
return true;
#endif
}
/**
* Set the background color
*/
inline bool setBackgroundColor(nxgl_mxpixel_t color)
{
return nx_setbgcolor(m_hNxServer, &color) == OK;
}
/**
* Get an instance of a raw NX window.
*/
inline CNxWindow *createRawWindow(CWidgetControl *widgetControl)
{
return new CNxWindow(m_hNxServer, widgetControl);
}
/**
* Get an instance of the framed NX window.
*/
inline CNxTkWindow *createFramedWindow(CWidgetControl *widgetControl)
{
return new CNxTkWindow(m_hNxServer, widgetControl);
}
/**
* Get an instance of the background window.
*/
inline CBgWindow *getBgWindow(CWidgetControl *widgetControl)
{
return new CBgWindow(m_hNxServer, widgetControl);
}
};
}
#endif // __cplusplus
#endif // __INCLUDE_CNXSERVER_HXX
|
