]> git.saurik.com Git - wxWidgets.git/blame_incremental - src/gtk/choice.cpp
crash in some very special case when arrows were used to move around fixed
[wxWidgets.git] / src / gtk / choice.cpp
... / ...
CommitLineData
1/////////////////////////////////////////////////////////////////////////////
2// Name: choice.cpp
3// Purpose:
4// Author: Robert Roebling
5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
7// Licence: wxWindows licence
8/////////////////////////////////////////////////////////////////////////////
9
10
11#ifdef __GNUG__
12#pragma implementation "choice.h"
13#endif
14
15#include "wx/choice.h"
16
17#include "gdk/gdk.h"
18#include "gtk/gtk.h"
19
20//-----------------------------------------------------------------------------
21// data
22//-----------------------------------------------------------------------------
23
24extern bool g_blockEventsOnDrag;
25
26//-----------------------------------------------------------------------------
27// "activate"
28//-----------------------------------------------------------------------------
29
30static void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), wxChoice *choice )
31{
32 if (!choice->HasVMT()) return;
33 if (g_blockEventsOnDrag) return;
34
35 wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId() );
36 event.SetInt( choice->GetSelection() );
37 wxString tmp( choice->GetStringSelection() );
38 event.SetString( WXSTRINGCAST(tmp) );
39 event.SetEventObject(choice);
40 choice->GetEventHandler()->ProcessEvent(event);
41}
42
43//-----------------------------------------------------------------------------
44// wxChoice
45//-----------------------------------------------------------------------------
46
47IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl)
48
49wxChoice::wxChoice()
50{
51}
52
53bool wxChoice::Create( wxWindow *parent, wxWindowID id,
54 const wxPoint &pos, const wxSize &size,
55 int n, const wxString choices[],
56 long style, const wxValidator& validator, const wxString &name )
57{
58 m_needParent = TRUE;
59
60 PreCreation( parent, id, pos, size, style, name );
61
62 SetValidator( validator );
63
64 m_widget = gtk_option_menu_new();
65
66 wxSize newSize = size;
67 if (newSize.x == -1) newSize.x = 80;
68 if (newSize.y == -1) newSize.y = 26;
69 SetSize( newSize.x, newSize.y );
70
71 GtkWidget *menu = gtk_menu_new();
72
73 for (int i = 0; i < n; i++)
74 {
75 m_clientDataList.Append( (wxObject*) NULL );
76 m_clientObjectList.Append( (wxObject*) NULL );
77
78 GtkWidget *item = gtk_menu_item_new_with_label( choices[i] );
79 gtk_menu_append( GTK_MENU(menu), item );
80
81 gtk_widget_realize( item );
82 gtk_widget_realize( GTK_BIN(item)->child );
83
84 gtk_widget_show( item );
85
86 gtk_signal_connect( GTK_OBJECT( item ), "activate",
87 GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
88 }
89 gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
90
91 m_parent->AddChild( this );
92
93 (m_parent->m_insertCallback)( m_parent, this );
94
95 PostCreation();
96
97 SetBackgroundColour( parent->GetBackgroundColour() );
98 SetForegroundColour( parent->GetForegroundColour() );
99 SetFont( parent->GetFont() );
100
101 Show( TRUE );
102
103 return TRUE;
104}
105
106wxChoice::~wxChoice()
107{
108 Clear();
109}
110
111void wxChoice::AppendCommon( const wxString &item )
112{
113 wxCHECK_RET( m_widget != NULL, "invalid choice" );
114
115 GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) );
116 GtkWidget *menu_item = gtk_menu_item_new_with_label( item );
117
118 gtk_menu_append( GTK_MENU(menu), menu_item );
119
120 gtk_widget_realize( menu_item );
121 gtk_widget_realize( GTK_BIN(menu_item)->child );
122
123 if (m_widgetStyle) ApplyWidgetStyle();
124
125 gtk_signal_connect( GTK_OBJECT( menu_item ), "activate",
126 GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this );
127
128 gtk_widget_show( menu_item );
129}
130
131void wxChoice::Append( const wxString &item )
132{
133 m_clientDataList.Append( (wxObject*) NULL );
134 m_clientObjectList.Append( (wxObject*) NULL );
135
136 AppendCommon( item );
137}
138
139void wxChoice::Append( const wxString &item, void *clientData )
140{
141 m_clientDataList.Append( (wxObject*) clientData );
142 m_clientObjectList.Append( (wxObject*) NULL );
143
144 AppendCommon( item );
145}
146
147void wxChoice::Append( const wxString &item, wxClientData *clientData )
148{
149 m_clientObjectList.Append( (wxObject*) clientData );
150 m_clientDataList.Append( (wxObject*) NULL );
151
152 AppendCommon( item );
153}
154
155void wxChoice::SetClientData( int n, void* clientData )
156{
157 wxCHECK_RET( m_widget != NULL, "invalid combobox" );
158
159 wxNode *node = m_clientDataList.Nth( n );
160 if (!node) return;
161
162 node->SetData( (wxObject*) clientData );
163}
164
165void* wxChoice::GetClientData( int n )
166{
167 wxCHECK_MSG( m_widget != NULL, NULL, "invalid combobox" );
168
169 wxNode *node = m_clientDataList.Nth( n );
170 if (!node) return NULL;
171
172 return node->Data();
173}
174
175void wxChoice::SetClientObject( int n, wxClientData* clientData )
176{
177 wxCHECK_RET( m_widget != NULL, "invalid combobox" );
178
179 wxNode *node = m_clientObjectList.Nth( n );
180 if (!node) return;
181
182 wxClientData *cd = (wxClientData*) node->Data();
183 if (cd) delete cd;
184
185 node->SetData( (wxObject*) clientData );
186}
187
188wxClientData* wxChoice::GetClientObject( int n )
189{
190 wxCHECK_MSG( m_widget != NULL, (wxClientData*) NULL, "invalid combobox" );
191
192 wxNode *node = m_clientObjectList.Nth( n );
193 if (!node) return (wxClientData*) NULL;
194
195 return (wxClientData*) node->Data();
196}
197
198void wxChoice::Clear()
199{
200 wxCHECK_RET( m_widget != NULL, "invalid choice" );
201
202 gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) );
203 GtkWidget *menu = gtk_menu_new();
204 gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu );
205
206 wxNode *node = m_clientObjectList.First();
207 while (node)
208 {
209 wxClientData *cd = (wxClientData*)node->Data();
210 if (cd) delete cd;
211 node = node->Next();
212 }
213 m_clientObjectList.Clear();
214
215 m_clientDataList.Clear();
216}
217
218void wxChoice::Delete( int WXUNUSED(n) )
219{
220 wxFAIL_MSG( "wxChoice:Delete not implemented" );
221}
222
223int wxChoice::FindString( const wxString &string ) const
224{
225 wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
226
227 // If you read this code once and you think you understand
228 // it, then you are very wrong. Robert Roebling.
229
230 GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
231 int count = 0;
232 GList *child = menu_shell->children;
233 while (child)
234 {
235 GtkBin *bin = GTK_BIN( child->data );
236 GtkLabel *label = (GtkLabel *) NULL;
237 if (bin->child) label = GTK_LABEL(bin->child);
238 if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
239
240 wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
241
242 if (string == label->label) return count;
243 child = child->next;
244 count++;
245 }
246
247 wxFAIL_MSG( "wxChoice: string not found" );
248
249 return -1;
250}
251
252int wxChoice::GetColumns() const
253{
254 return 1;
255}
256
257int wxChoice::GetSelection()
258{
259 wxCHECK_MSG( m_widget != NULL, -1, "invalid choice" );
260
261 GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
262 int count = 0;
263 GList *child = menu_shell->children;
264 while (child)
265 {
266 GtkBin *bin = GTK_BIN( child->data );
267 if (!bin->child) return count;
268 child = child->next;
269 count++;
270 }
271
272 wxFAIL_MSG( "wxChoice: no selection" );
273
274 return -1;
275}
276
277wxString wxChoice::GetString( int n ) const
278{
279 wxCHECK_MSG( m_widget != NULL, "", "invalid choice" );
280
281 GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
282 int count = 0;
283 GList *child = menu_shell->children;
284 while (child)
285 {
286 GtkBin *bin = GTK_BIN( child->data );
287 if (count == n)
288 {
289 GtkLabel *label = (GtkLabel *) NULL;
290 if (bin->child) label = GTK_LABEL(bin->child);
291 if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
292
293 wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
294
295 return label->label;
296 }
297 child = child->next;
298 count++;
299 }
300
301 wxFAIL_MSG( "wxChoice: string not found" );
302
303 return "";
304}
305
306wxString wxChoice::GetStringSelection() const
307{
308 wxCHECK_MSG( m_widget != NULL, "", "invalid choice" );
309
310 GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child );
311
312 wxASSERT_MSG( label != NULL , "wxChoice: invalid label" );
313
314 return label->label;
315}
316
317int wxChoice::Number() const
318{
319 wxCHECK_MSG( m_widget != NULL, 0, "invalid choice" );
320
321 GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
322 int count = 0;
323 GList *child = menu_shell->children;
324 while (child)
325 {
326 count++;
327 child = child->next;
328 }
329 return count;
330}
331
332void wxChoice::SetColumns( int WXUNUSED(n) )
333{
334}
335
336void wxChoice::SetSelection( int n )
337{
338 wxCHECK_RET( m_widget != NULL, "invalid choice" );
339
340 int tmp = n;
341 gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp );
342
343 gtk_choice_clicked_callback( (GtkWidget *) NULL, this );
344}
345
346void wxChoice::SetStringSelection( const wxString &string )
347{
348 wxCHECK_RET( m_widget != NULL, "invalid choice" );
349
350 int n = FindString( string );
351 if (n != -1) SetSelection( n );
352}
353
354void wxChoice::ApplyWidgetStyle()
355{
356 SetWidgetStyle();
357
358 GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) );
359
360 gtk_widget_set_style( m_widget, m_widgetStyle );
361 gtk_widget_set_style( GTK_WIDGET( menu_shell ), m_widgetStyle );
362
363 GList *child = menu_shell->children;
364 while (child)
365 {
366 gtk_widget_set_style( GTK_WIDGET( child->data ), m_widgetStyle );
367
368 GtkBin *bin = GTK_BIN( child->data );
369 GtkWidget *label = (GtkWidget *) NULL;
370 if (bin->child) label = bin->child;
371 if (!label) label = GTK_BUTTON(m_widget)->child;
372
373 gtk_widget_set_style( label, m_widgetStyle );
374
375 child = child->next;
376 }
377}
378