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planemo upload commit 2e9511a184a1ca667c7be0c6321a36dc4e3d116d
author jpayne
date Tue, 18 Mar 2025 17:55:14 -0400
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1 // * This makes emacs happy -*-Mode: C++;-*-
2 // vile:cppmode
3 /****************************************************************************
4 * Copyright 2019-2021,2022 Thomas E. Dickey *
5 * Copyright 1998-2012,2014 Free Software Foundation, Inc. *
6 * *
7 * Permission is hereby granted, free of charge, to any person obtaining a *
8 * copy of this software and associated documentation files (the *
9 * "Software"), to deal in the Software without restriction, including *
10 * without limitation the rights to use, copy, modify, merge, publish, *
11 * distribute, distribute with modifications, sublicense, and/or sell *
12 * copies of the Software, and to permit persons to whom the Software is *
13 * furnished to do so, subject to the following conditions: *
14 * *
15 * The above copyright notice and this permission notice shall be included *
16 * in all copies or substantial portions of the Software. *
17 * *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
21 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
22 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
23 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
24 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
25 * *
26 * Except as contained in this notice, the name(s) of the above copyright *
27 * holders shall not be used in advertising or otherwise to promote the *
28 * sale, use or other dealings in this Software without prior written *
29 * authorization. *
30 ****************************************************************************/
31
32 /****************************************************************************
33 * Author: Juergen Pfeifer, 1997 *
34 ****************************************************************************/
35
36 #ifndef NCURSES_CURSESP_H_incl
37 #define NCURSES_CURSESP_H_incl 1
38
39 // $Id: cursesp.h,v 1.36 2022/08/20 20:52:15 tom Exp $
40
41 #include <ncursesw/cursesw.h>
42
43 extern "C" {
44 # include <ncursesw/panel.h>
45 }
46
47 class NCURSES_CXX_IMPEXP NCursesPanel
48 : public NCursesWindow
49 {
50 protected:
51 PANEL *p;
52 static NCursesPanel *dummy;
53
54 private:
55 // This structure is used for the panel's user data field to link the
56 // PANEL* to the C++ object and to provide extra space for a user pointer.
57 typedef struct {
58 void* m_user; // the pointer for the user's data
59 const NCursesPanel* m_back; // backward pointer to C++ object
60 const PANEL* m_owner; // the panel itself
61 } UserHook;
62
63 inline UserHook *UserPointer()
64 {
65 UserHook* uptr = reinterpret_cast<UserHook*>(
66 const_cast<void *>(::panel_userptr (p)));
67 return uptr;
68 }
69
70 void init(); // Initialize the panel object
71
72 protected:
73 void set_user(void *user)
74 {
75 UserHook* uptr = UserPointer();
76 if (uptr != 0 && uptr->m_back==this && uptr->m_owner==p) {
77 uptr->m_user = user;
78 }
79 }
80 // Set the user pointer of the panel.
81
82 void *get_user()
83 {
84 UserHook* uptr = UserPointer();
85 void *result = 0;
86 if (uptr != 0 && uptr->m_back==this && uptr->m_owner==p)
87 result = uptr->m_user;
88 return result;
89 }
90
91 void OnError (int err) const THROW2(NCursesException const, NCursesPanelException)
92 {
93 if (err==ERR)
94 THROW(new NCursesPanelException (this, err));
95 }
96 // If err is equal to the curses error indicator ERR, an error handler
97 // is called.
98
99 // Get a keystroke. Default implementation calls getch()
100 virtual int getKey(void);
101
102 public:
103 NCursesPanel(int nlines,
104 int ncols,
105 int begin_y = 0,
106 int begin_x = 0)
107 : NCursesWindow(nlines,ncols,begin_y,begin_x), p(0)
108 {
109 init();
110 }
111 // Create a panel with this size starting at the requested position.
112
113 NCursesPanel()
114 : NCursesWindow(::stdscr), p(0)
115 {
116 init();
117 }
118 // This constructor creates the default Panel associated with the
119 // ::stdscr window
120
121 NCursesPanel& operator=(const NCursesPanel& rhs)
122 {
123 if (this != &rhs) {
124 *this = rhs;
125 NCursesWindow::operator=(rhs);
126 }
127 return *this;
128 }
129
130 NCursesPanel(const NCursesPanel& rhs)
131 : NCursesWindow(rhs),
132 p(rhs.p)
133 {
134 }
135
136 virtual ~NCursesPanel() THROWS(NCursesException);
137
138 // basic manipulation
139 inline void hide()
140 {
141 OnError (::hide_panel(p));
142 }
143 // Hide the panel. It stays in the stack but becomes invisible.
144
145 inline void show()
146 {
147 OnError (::show_panel(p));
148 }
149 // Show the panel, i.e. make it visible.
150
151 inline void top()
152 {
153 OnError (::top_panel(p));
154 }
155 // Make this panel the top panel in the stack.
156
157 inline void bottom()
158 {
159 OnError (::bottom_panel(p));
160 }
161 // Make this panel the bottom panel in the stack.
162 // N.B.: The panel associated with ::stdscr is always on the bottom. So
163 // actually bottom() makes the panel the first above ::stdscr.
164
165 virtual int mvwin(int y, int x) NCURSES_OVERRIDE
166 {
167 OnError(::move_panel(p, y, x));
168 return OK;
169 }
170
171 inline bool hidden() const
172 {
173 return (::panel_hidden (p) ? TRUE : FALSE);
174 }
175 // Return TRUE if the panel is hidden, FALSE otherwise.
176
177 /* The functions panel_above() and panel_below() are not reflected in
178 the NCursesPanel class. The reason for this is, that we cannot
179 assume that a panel retrieved by those operations is one wrapped
180 by a C++ class. Although this situation might be handled, we also
181 need a reverse mapping from PANEL to NCursesPanel which needs some
182 redesign of the low level stuff. At the moment, we define them in the
183 interface but they will always produce an error. */
184 inline NCursesPanel& above() const
185 {
186 OnError(ERR);
187 return *dummy;
188 }
189
190 inline NCursesPanel& below() const
191 {
192 OnError(ERR);
193 return *dummy;
194 }
195
196 // Those two are rewrites of the corresponding virtual members of
197 // NCursesWindow
198 virtual int refresh() NCURSES_OVERRIDE;
199 // Propagate all panel changes to the virtual screen and update the
200 // physical screen.
201
202 virtual int noutrefresh() NCURSES_OVERRIDE;
203 // Propagate all panel changes to the virtual screen.
204
205 static void redraw();
206 // Redraw all panels.
207
208 // decorations
209 virtual void frame(const char* title=NULL,
210 const char* btitle=NULL);
211 // Put a frame around the panel and put the title centered in the top line
212 // and btitle in the bottom line.
213
214 virtual void boldframe(const char* title=NULL,
215 const char* btitle=NULL);
216 // Same as frame(), but use highlighted attributes.
217
218 virtual void label(const char* topLabel,
219 const char* bottomLabel);
220 // Put the title centered in the top line and btitle in the bottom line.
221
222 virtual void centertext(int row,const char* label);
223 // Put the label text centered in the specified row.
224 };
225
226 /* We use templates to provide a typesafe mechanism to associate
227 * user data with a panel. A NCursesUserPanel<T> is a panel
228 * associated with some user data of type T.
229 */
230 template<class T> class NCursesUserPanel : public NCursesPanel
231 {
232 public:
233 NCursesUserPanel (int nlines,
234 int ncols,
235 int begin_y = 0,
236 int begin_x = 0,
237 const T* p_UserData = STATIC_CAST(T*)(0))
238 : NCursesPanel (nlines, ncols, begin_y, begin_x)
239 {
240 if (p)
241 set_user (const_cast<void *>(reinterpret_cast<const void*>
242 (p_UserData)));
243 };
244 // This creates an user panel of the requested size with associated
245 // user data pointed to by p_UserData.
246
247 explicit NCursesUserPanel(const T* p_UserData = STATIC_CAST(T*)(0)) : NCursesPanel()
248 {
249 if (p)
250 set_user(const_cast<void *>(reinterpret_cast<const void*>(p_UserData)));
251 };
252 // This creates an user panel associated with the ::stdscr and user data
253 // pointed to by p_UserData.
254
255 virtual ~NCursesUserPanel() THROWS(NCursesException) {};
256
257 T* UserData (void)
258 {
259 return reinterpret_cast<T*>(get_user ());
260 };
261 // Retrieve the user data associated with the panel.
262
263 virtual void setUserData (const T* p_UserData)
264 {
265 if (p)
266 set_user (const_cast<void *>(reinterpret_cast<const void*>(p_UserData)));
267 }
268 // Associate the user panel with the user data pointed to by p_UserData.
269 };
270
271 #endif /* NCURSES_CURSESP_H_incl */