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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: choice.cpp | |
3 | // Purpose: | |
4 | // Author: Robert Roebling | |
5 | // Created: 01/02/97 | |
6 | // Id: | |
7 | // Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem | |
8 | // Licence: wxWindows licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "choice.h" | |
14 | #endif | |
15 | ||
16 | #include "wx/choice.h" | |
17 | ||
18 | //----------------------------------------------------------------------------- | |
19 | // wxChoice | |
20 | //----------------------------------------------------------------------------- | |
21 | ||
22 | void gtk_choice_clicked_callback( GtkWidget *WXUNUSED(widget), gpointer data ) | |
23 | { | |
24 | wxChoice *choice = (wxChoice*)data; | |
25 | wxCommandEvent event(wxEVT_COMMAND_CHOICE_SELECTED, choice->GetId()); | |
26 | event.SetInt( choice->GetSelection() ); | |
27 | wxString tmp( choice->GetStringSelection() ); | |
28 | event.SetString( WXSTRINGCAST(tmp) ); | |
29 | event.SetEventObject(choice); | |
30 | choice->ProcessEvent(event); | |
31 | }; | |
32 | ||
33 | //----------------------------------------------------------------------------- | |
34 | ||
7f4dc78d | 35 | IMPLEMENT_DYNAMIC_CLASS(wxChoice,wxControl) |
c801d85f KB |
36 | |
37 | wxChoice::wxChoice(void) | |
38 | { | |
39 | }; | |
40 | ||
41 | wxChoice::wxChoice( wxWindow *parent, const wxWindowID id, | |
42 | const wxPoint &pos, const wxSize &size, | |
43 | const int n, const wxString choices[], | |
44 | const long style, const wxString &name ) | |
45 | { | |
46 | Create( parent, id, pos, size, n, choices, style, name ); | |
47 | }; | |
48 | ||
49 | bool wxChoice::Create( wxWindow *parent, const wxWindowID id, | |
50 | const wxPoint &pos, const wxSize &size, | |
51 | const int n, const wxString choices[], | |
52 | const long style, const wxString &name ) | |
53 | { | |
54 | m_needParent = TRUE; | |
55 | ||
56 | PreCreation( parent, id, pos, size, style, name ); | |
57 | ||
58 | m_widget = gtk_option_menu_new(); | |
59 | ||
60 | wxSize newSize = size; | |
61 | if (newSize.x == -1) newSize.x = 80; | |
62 | if (newSize.y == -1) newSize.y = 26; | |
63 | SetSize( newSize.x, newSize.y ); | |
64 | ||
65 | GtkWidget *menu; | |
66 | menu = gtk_menu_new(); | |
67 | ||
68 | for (int i = 0; i < n; i++) | |
69 | { | |
70 | GtkWidget *item; | |
71 | item = gtk_menu_item_new_with_label( choices[i] ); | |
72 | gtk_signal_connect( GTK_OBJECT( item ), "activate", | |
73 | GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); | |
74 | gtk_menu_append( GTK_MENU(menu), item ); | |
75 | gtk_widget_show( item ); | |
76 | }; | |
77 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); | |
78 | ||
79 | PostCreation(); | |
80 | ||
81 | Show( TRUE ); | |
82 | ||
83 | return TRUE; | |
84 | }; | |
85 | ||
86 | void wxChoice::Append( const wxString &item ) | |
87 | { | |
88 | GtkWidget *menu = gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ); | |
89 | GtkWidget *menu_item; | |
90 | menu_item = gtk_menu_item_new_with_label( item ); | |
91 | gtk_signal_connect( GTK_OBJECT( menu_item ), "activate", | |
92 | GTK_SIGNAL_FUNC(gtk_choice_clicked_callback), (gpointer*)this ); | |
93 | gtk_menu_append( GTK_MENU(menu), menu_item ); | |
94 | gtk_widget_show( menu_item ); | |
95 | }; | |
96 | ||
97 | void wxChoice::Clear(void) | |
98 | { | |
99 | gtk_option_menu_remove_menu( GTK_OPTION_MENU(m_widget) ); | |
100 | GtkWidget *menu = gtk_menu_new(); | |
101 | gtk_option_menu_set_menu( GTK_OPTION_MENU(m_widget), menu ); | |
102 | }; | |
103 | ||
104 | int wxChoice::FindString( const wxString &string ) const | |
105 | { | |
106 | // If you read this code once and you think you undestand | |
107 | // it, then you are very wrong. RR | |
108 | ||
109 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
110 | int count = 0; | |
111 | GList *child = menu_shell->children; | |
112 | while (child) | |
113 | { | |
114 | GtkBin *bin = GTK_BIN( child->data ); | |
115 | GtkLabel *label = GTK_LABEL(bin->child); | |
116 | if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); | |
117 | if (string == label->label) return count; | |
118 | child = child->next; | |
119 | count++; | |
120 | }; | |
121 | return -1; | |
122 | }; | |
123 | ||
124 | int wxChoice::GetColumns(void) const | |
125 | { | |
126 | return 1; | |
127 | }; | |
128 | ||
129 | int wxChoice::GetSelection(void) | |
130 | { | |
131 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
132 | int count = 0; | |
133 | GList *child = menu_shell->children; | |
134 | while (child) | |
135 | { | |
136 | GtkBin *bin = GTK_BIN( child->data ); | |
137 | if (!bin->child) return count; | |
138 | child = child->next; | |
139 | count++; | |
140 | }; | |
141 | return -1; | |
142 | }; | |
143 | ||
144 | wxString wxChoice::GetString( const int n ) const | |
145 | { | |
146 | GtkMenuShell *menu_shell = GTK_MENU_SHELL( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
147 | int count = 0; | |
148 | GList *child = menu_shell->children; | |
149 | while (child) | |
150 | { | |
151 | GtkBin *bin = GTK_BIN( child->data ); | |
152 | if (count == n) | |
153 | { | |
154 | GtkLabel *label = GTK_LABEL(bin->child); | |
155 | if (!label) label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); | |
156 | return label->label; | |
157 | }; | |
158 | child = child->next; | |
159 | count++; | |
160 | }; | |
161 | return ""; | |
162 | }; | |
163 | ||
164 | wxString wxChoice::GetStringSelection(void) const | |
165 | { | |
166 | GtkLabel *label = GTK_LABEL( GTK_BUTTON(m_widget)->child ); | |
167 | return label->label; | |
168 | }; | |
169 | ||
170 | int wxChoice::Number(void) const | |
171 | { | |
172 | GtkMenu *menu = GTK_MENU( gtk_option_menu_get_menu( GTK_OPTION_MENU(m_widget) ) ); | |
173 | int count = 0; | |
174 | GList *child = menu->children; | |
175 | while (child) | |
176 | { | |
177 | count++; | |
178 | child = child->next; | |
179 | }; | |
180 | return count; | |
181 | }; | |
182 | ||
183 | void wxChoice::SetColumns( const int WXUNUSED(n) ) | |
184 | { | |
185 | }; | |
186 | ||
187 | void wxChoice::SetSelection( const int n ) | |
188 | { | |
189 | int tmp = n; | |
190 | gtk_option_menu_set_history( GTK_OPTION_MENU(m_widget), (gint)tmp ); | |
191 | }; | |
192 | ||
193 | void wxChoice::SetStringSelection( const wxString &string ) | |
194 | { | |
195 | int n = FindString( string ); | |
196 | if (n != -1) SetSelection( n ); | |
197 | }; | |
198 |