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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: choice.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
dbf858b5 | 5 | // Id: $Id$ |
01111366 | 6 | // Copyright: (c) 1998 Robert Roebling |
29006414 | 7 | // Licence: wxWindows licence |
c801d85f KB |
8 | ///////////////////////////////////////////////////////////////////////////// |
9 | ||
10 | ||
11 | #ifdef __GNUG__ | |
12 | #pragma implementation "choice.h" | |
13 | #endif | |
14 | ||
1e6feb95 | 15 | #include "wx/defs.h" |
c801d85f | 16 | |
ce4169a4 RR |
17 | #if wxUSE_CHOICE |
18 | ||
1e6feb95 VZ |
19 | #include "wx/choice.h" |
20 | ||
071a2d78 RR |
21 | #include <gdk/gdk.h> |
22 | #include <gtk/gtk.h> | |
83624f79 | 23 | |
acfd422a RR |
24 | //----------------------------------------------------------------------------- |
25 | // idle system | |
26 | //----------------------------------------------------------------------------- | |
27 | ||
28 | extern void wxapp_install_idle_handler(); | |
29 | extern bool g_isIdle; | |
30 | ||
66bd6b93 RR |
31 | //----------------------------------------------------------------------------- |
32 | // data | |
33 | //----------------------------------------------------------------------------- | |
34 | ||
35 | extern bool g_blockEventsOnDrag; | |
36 | ||
c801d85f | 37 | //----------------------------------------------------------------------------- |
e1e955e1 | 38 | // "activate" |
c801d85f KB |
39 | //----------------------------------------------------------------------------- |
40 | ||
66bd6b93 | 41 | static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice ) |
c801d85f | 42 | { |
e01c8145 | 43 | if (g_isIdle) |
4dcaf11a | 44 | wxapp_install_idle_handler(); |
acfd422a | 45 | |
a2053b27 | 46 | if (!choice->m_hasVMT) return; |
29006414 | 47 | |
acfd422a | 48 | if (g_blockEventsOnDrag) return; |
29006414 | 49 | |
acfd422a | 50 | wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() ); |
6c8a980f VZ |
51 | int n = choice->GetSelection(); |
52 | ||
53 | event.SetInt( n ); | |
acfd422a RR |
54 | event.SetString( choice->GetStringSelection() ); |
55 | event.SetEventObject(choice); | |
6c8a980f VZ |
56 | |
57 | if ( choice->HasClientObjectData() ) | |
58 | event.SetClientObject( choice->GetClientObject(n) ); | |
59 | else if ( choice->HasClientUntypedData() ) | |
60 | event.SetClientData( choice->GetClientData(n) ); | |
61 | ||
acfd422a | 62 | choice->GetEventHandler()->ProcessEvent(event); |
6de97a3b | 63 | } |
c801d85f | 64 | |
e1e955e1 RR |
65 | //----------------------------------------------------------------------------- |
66 | // wxChoice | |
c801d85f KB |
67 | //----------------------------------------------------------------------------- |
68 | ||
7f4dc78d | 69 | IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl) |
c801d85f | 70 | |
fd0eed64 | 71 | wxChoice::wxChoice() |
c801d85f | 72 | { |
e01c8145 | 73 | m_strings = (wxSortedArrayString *)NULL; |
6de97a3b | 74 | } |
c801d85f | 75 | |
debe6624 | 76 | bool wxChoice::Create( wxWindow *parent, wxWindowID id, |
fd0eed64 RR |
77 | const wxPoint &pos, const wxSize &size, |
78 | int n, const wxString choices[], | |
79 | long style, const wxValidator& validator, const wxString &name ) | |
c801d85f | 80 | { |
fd0eed64 | 81 | m_needParent = TRUE; |
034be888 RR |
82 | #if (GTK_MINOR_VERSION > 0) |
83 | m_acceptsFocus = TRUE; | |
84 | #endif | |
29006414 | 85 | |
4dcaf11a RR |
86 | if (!PreCreation( parent, pos, size ) || |
87 | !CreateBase( parent, id, pos, size, style, validator, name )) | |
88 | { | |
223d09f6 | 89 | wxFAIL_MSG( wxT("wxChoice creation failed") ); |
e01c8145 | 90 | return FALSE; |
4dcaf11a | 91 | } |
6de97a3b | 92 | |
fd0eed64 | 93 | m_widget = gtk_option_menu_new(); |
29006414 | 94 | |
e01c8145 VZ |
95 | if ( style & wxCB_SORT ) |
96 | { | |
97 | // if our m_strings != NULL, DoAppend() will check for it and insert | |
98 | // items in the correct order | |
99 | m_strings = new wxSortedArrayString; | |
100 | } | |
101 | ||
fd0eed64 | 102 | GtkWidget *menu = gtk_menu_new(); |
29006414 | 103 | |
fd0eed64 RR |
104 | for (int i = 0; i < n; i++) |
105 | { | |
071a2d78 | 106 | GtkAppendHelper(menu, choices[i]); |
fd0eed64 | 107 | } |
e01c8145 | 108 | |
fd0eed64 | 109 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); |
29006414 | 110 | |
f03fc89f | 111 | m_parent->DoAddChild( this ); |
29006414 | 112 | |
fd0eed64 | 113 | PostCreation(); |
29006414 | 114 | |
db434467 RR |
115 | SetFont( parent->GetFont() ); |
116 | ||
117 | wxSize size_best( DoGetBestSize() ); | |
118 | wxSize new_size( size ); | |
119 | if (new_size.x == -1) | |
120 | new_size.x = size_best.x; | |
121 | if (new_size.y == -1) | |
122 | new_size.y = size_best.y; | |
123 | if ((new_size.x != size.x) || (new_size.y != size.y)) | |
124 | SetSize( new_size.x, new_size.y ); | |
125 | ||
fd0eed64 RR |
126 | SetBackgroundColour( parent->GetBackgroundColour() ); |
127 | SetForegroundColour( parent->GetForegroundColour() ); | |
f96aa4d9 | 128 | |
fd0eed64 | 129 | Show( TRUE ); |
29006414 | 130 | |
fd0eed64 | 131 | return TRUE; |
6de97a3b | 132 | } |
29006414 | 133 | |
fd0eed64 RR |
134 | wxChoice::~wxChoice() |
135 | { | |
f5e27805 | 136 | Clear(); |
e01c8145 VZ |
137 | |
138 | delete m_strings; | |
fd0eed64 RR |
139 | } |
140 | ||
9abe166a | 141 | int wxChoice::DoAppend( const wxString &item ) |
fd0eed64 | 142 | { |
2ee3ee1b | 143 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice control") ); |
29006414 | 144 | |
fd0eed64 | 145 | GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); |
29006414 | 146 | |
071a2d78 | 147 | return GtkAppendHelper(menu, item); |
fd0eed64 | 148 | } |
f96aa4d9 | 149 | |
6c8a980f | 150 | void wxChoice::DoSetItemClientData( int n, void* clientData ) |
fd0eed64 | 151 | { |
2ee3ee1b | 152 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); |
29006414 | 153 | |
d6538e2c | 154 | wxNode *node = m_clientList.Nth( n ); |
6c8a980f | 155 | wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientData") ); |
29006414 | 156 | |
f5e27805 | 157 | node->SetData( (wxObject*) clientData ); |
fd0eed64 RR |
158 | } |
159 | ||
6c8a980f | 160 | void* wxChoice::DoGetItemClientData( int n ) const |
fd0eed64 | 161 | { |
2ee3ee1b | 162 | wxCHECK_MSG( m_widget != NULL, NULL, wxT("invalid choice control") ); |
29006414 | 163 | |
d6538e2c | 164 | wxNode *node = m_clientList.Nth( n ); |
6c8a980f | 165 | wxCHECK_MSG( node, NULL, wxT("invalid index in wxChoice::DoGetItemClientData") ); |
29006414 | 166 | |
f5e27805 | 167 | return node->Data(); |
6de97a3b | 168 | } |
fd0eed64 | 169 | |
6c8a980f | 170 | void wxChoice::DoSetItemClientObject( int n, wxClientData* clientData ) |
fd0eed64 | 171 | { |
2ee3ee1b | 172 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice control") ); |
29006414 | 173 | |
d6538e2c | 174 | wxNode *node = m_clientList.Nth( n ); |
6c8a980f | 175 | wxCHECK_RET( node, wxT("invalid index in wxChoice::DoSetItemClientObject") ); |
29006414 | 176 | |
fd0eed64 | 177 | wxClientData *cd = (wxClientData*) node->Data(); |
9abe166a | 178 | delete cd; |
29006414 | 179 | |
fd0eed64 RR |
180 | node->SetData( (wxObject*) clientData ); |
181 | } | |
182 | ||
6c8a980f | 183 | wxClientData* wxChoice::DoGetItemClientObject( int n ) const |
fd0eed64 | 184 | { |
2ee3ee1b | 185 | wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, wxT("invalid choice control") ); |
29006414 | 186 | |
d6538e2c | 187 | wxNode *node = m_clientList.Nth( n ); |
9abe166a | 188 | wxCHECK_MSG( node, (wxClientData *)NULL, |
6c8a980f | 189 | wxT("invalid index in wxChoice::DoGetItemClientObject") ); |
29006414 | 190 | |
fd0eed64 RR |
191 | return (wxClientData*) node->Data(); |
192 | } | |
29006414 | 193 | |
fd0eed64 | 194 | void wxChoice::Clear() |
c801d85f | 195 | { |
223d09f6 | 196 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
f96aa4d9 | 197 | |
fd0eed64 RR |
198 | gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) ); |
199 | GtkWidget *menu = gtk_menu_new(); | |
200 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); | |
29006414 | 201 | |
6c8a980f VZ |
202 | if ( HasClientObjectData() ) |
203 | { | |
204 | // destroy the data (due to Robert's idea of using wxList<wxObject> | |
205 | // and not wxList<wxClientData> we can't just say | |
206 | // m_clientList.DeleteContents(TRUE) - this would crash! | |
207 | wxNode *node = m_clientList.First(); | |
208 | while ( node ) | |
209 | { | |
210 | delete (wxClientData *)node->Data(); | |
211 | node = node->Next(); | |
212 | } | |
213 | } | |
d6538e2c | 214 | m_clientList.Clear(); |
2ee3ee1b VZ |
215 | |
216 | if ( m_strings ) | |
217 | m_strings->Clear(); | |
6de97a3b | 218 | } |
c801d85f | 219 | |
2f6407b9 RR |
220 | void wxChoice::Delete( int WXUNUSED(n) ) |
221 | { | |
223d09f6 | 222 | wxFAIL_MSG( wxT("wxChoice:Delete not implemented") ); |
2f6407b9 RR |
223 | } |
224 | ||
c801d85f KB |
225 | int wxChoice::FindString( const wxString &string ) const |
226 | { | |
223d09f6 | 227 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") ); |
fd0eed64 RR |
228 | |
229 | // If you read this code once and you think you understand | |
230 | // it, then you are very wrong. Robert Roebling. | |
29006414 | 231 | |
fd0eed64 RR |
232 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
233 | int count = 0; | |
234 | GList *child = menu_shell->children; | |
235 | while (child) | |
236 | { | |
237 | GtkBin *bin = GTK_BIN( child->data ); | |
238 | GtkLabel *label = (GtkLabel *) NULL; | |
239 | if (bin->child) label = GTK_LABEL(bin->child); | |
240 | if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); | |
29006414 | 241 | |
223d09f6 | 242 | wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); |
29006414 | 243 | |
dcf924a3 | 244 | if (string == wxString(label->label,*wxConvCurrent)) |
29006414 VZ |
245 | return count; |
246 | ||
fd0eed64 RR |
247 | child = child->next; |
248 | count++; | |
249 | } | |
29006414 | 250 | |
fd0eed64 | 251 | return -1; |
6de97a3b | 252 | } |
c801d85f | 253 | |
9abe166a | 254 | int wxChoice::GetSelection() const |
c801d85f | 255 | { |
223d09f6 | 256 | wxCHECK_MSG( m_widget != NULL, -1, wxT("invalid choice") ); |
fd0eed64 RR |
257 | |
258 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
259 | int count = 0; | |
260 | GList *child = menu_shell->children; | |
261 | while (child) | |
262 | { | |
263 | GtkBin *bin = GTK_BIN( child->data ); | |
264 | if (!bin->child) return count; | |
265 | child = child->next; | |
266 | count++; | |
267 | } | |
29006414 | 268 | |
fd0eed64 | 269 | return -1; |
6de97a3b | 270 | } |
c801d85f | 271 | |
6c8a980f VZ |
272 | void wxChoice::SetString( int WXUNUSED(n), const wxString& WXUNUSED(string) ) |
273 | { | |
274 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); | |
275 | ||
276 | wxFAIL_MSG(wxT("not implemented")); | |
277 | } | |
278 | ||
debe6624 | 279 | wxString wxChoice::GetString( int n ) const |
c801d85f | 280 | { |
223d09f6 | 281 | wxCHECK_MSG( m_widget != NULL, wxT(""), wxT("invalid choice") ); |
fd0eed64 RR |
282 | |
283 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
284 | int count = 0; | |
285 | GList *child = menu_shell->children; | |
286 | while (child) | |
c801d85f | 287 | { |
fd0eed64 RR |
288 | GtkBin *bin = GTK_BIN( child->data ); |
289 | if (count == n) | |
290 | { | |
291 | GtkLabel *label = (GtkLabel *) NULL; | |
292 | if (bin->child) label = GTK_LABEL(bin->child); | |
293 | if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); | |
29006414 | 294 | |
223d09f6 | 295 | wxASSERT_MSG( label != NULL , wxT("wxChoice: invalid label") ); |
29006414 | 296 | |
dcf924a3 | 297 | return wxString(label->label,*wxConvCurrent); |
fd0eed64 RR |
298 | } |
299 | child = child->next; | |
300 | count++; | |
6de97a3b | 301 | } |
29006414 | 302 | |
223d09f6 | 303 | wxFAIL_MSG( wxT("wxChoice: invalid index in GetString()") ); |
29006414 | 304 | |
223d09f6 | 305 | return wxT(""); |
6de97a3b | 306 | } |
c801d85f | 307 | |
9abe166a | 308 | int wxChoice::GetCount() const |
c801d85f | 309 | { |
223d09f6 | 310 | wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid choice") ); |
fd0eed64 RR |
311 | |
312 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
313 | int count = 0; | |
314 | GList *child = menu_shell->children; | |
315 | while (child) | |
316 | { | |
317 | count++; | |
318 | child = child->next; | |
319 | } | |
320 | return count; | |
6de97a3b | 321 | } |
c801d85f | 322 | |
debe6624 | 323 | void wxChoice::SetSelection( int n ) |
c801d85f | 324 | { |
223d09f6 | 325 | wxCHECK_RET( m_widget != NULL, wxT("invalid choice") ); |
f96aa4d9 | 326 | |
fd0eed64 RR |
327 | int tmp = n; |
328 | gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); | |
6de97a3b | 329 | } |
c801d85f | 330 | |
58614078 | 331 | void wxChoice::ApplyWidgetStyle() |
868a2826 | 332 | { |
fd0eed64 | 333 | SetWidgetStyle(); |
29006414 | 334 | |
fd0eed64 | 335 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); |
29006414 | 336 | |
fd0eed64 RR |
337 | gtk_widget_set_style( m_widget, m_widgetStyle ); |
338 | gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle ); | |
29006414 | 339 | |
fd0eed64 RR |
340 | GList *child = menu_shell->children; |
341 | while (child) | |
342 | { | |
343 | gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle ); | |
29006414 | 344 | |
fd0eed64 RR |
345 | GtkBin *bin = GTK_BIN( child->data ); |
346 | GtkWidget *label = (GtkWidget *) NULL; | |
347 | if (bin->child) label = bin->child; | |
348 | if (!label) label = GTK_BUTTON(m_widget)->child; | |
29006414 | 349 | |
fd0eed64 | 350 | gtk_widget_set_style( label, m_widgetStyle ); |
29006414 | 351 | |
fd0eed64 RR |
352 | child = child->next; |
353 | } | |
f96aa4d9 RR |
354 | } |
355 | ||
071a2d78 | 356 | size_t wxChoice::GtkAppendHelper(GtkWidget *menu, const wxString& item) |
e01c8145 VZ |
357 | { |
358 | GtkWidget *menu_item = gtk_menu_item_new_with_label( item.mbc_str() ); | |
359 | ||
360 | size_t index; | |
361 | if ( m_strings ) | |
362 | { | |
363 | // sorted control, need to insert at the correct index | |
364 | index = m_strings->Add(item); | |
365 | ||
366 | gtk_menu_insert( GTK_MENU(menu), menu_item, index ); | |
367 | ||
368 | if ( index ) | |
369 | { | |
370 | m_clientList.Insert( m_clientList.Item(index - 1), | |
371 | (wxObject*) NULL ); | |
372 | } | |
373 | else | |
374 | { | |
6c8a980f | 375 | m_clientList.Insert( (wxObject*) NULL ); |
e01c8145 VZ |
376 | } |
377 | } | |
378 | else | |
379 | { | |
380 | // normal control, just append | |
381 | gtk_menu_append( GTK_MENU(menu), menu_item ); | |
382 | ||
383 | m_clientList.Append( (wxObject*) NULL ); | |
384 | ||
385 | // don't call wxChoice::GetCount() from here because it doesn't work | |
386 | // if we're called from ctor (and GtkMenuShell is still NULL) | |
11e1c70d | 387 | index = m_clientList.GetCount() - 1; |
e01c8145 VZ |
388 | } |
389 | ||
390 | if (GTK_WIDGET_REALIZED(m_widget)) | |
391 | { | |
392 | gtk_widget_realize( menu_item ); | |
393 | gtk_widget_realize( GTK_BIN(menu_item)->child ); | |
394 | ||
395 | if (m_widgetStyle) ApplyWidgetStyle(); | |
396 | } | |
397 | ||
398 | gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", | |
399 | GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); | |
400 | ||
401 | gtk_widget_show( menu_item ); | |
402 | ||
403 | // return the index of the item in the control | |
404 | return index; | |
405 | } | |
406 | ||
f68586e5 VZ |
407 | wxSize wxChoice::DoGetBestSize() const |
408 | { | |
db434467 RR |
409 | wxSize ret( wxControl::DoGetBestSize() ); |
410 | if (ret.x < 80) ret.x = 80; | |
411 | ret.y = 16 + gdk_char_height( m_widget->style->font, 'H' ); | |
412 | return ret; | |
f68586e5 VZ |
413 | } |
414 | ||
ce4169a4 | 415 | #endif |