1 /* ///////////////////////////////////////////////////////////////////////////
2 // Name: src/gtk/treeentry_gtk.c
3 // Purpose: GtkTreeEntry implementation
4 // Author: Ryan Norton
5 // Copyright: (c) 2006 Ryan Norton
6 // Licence: wxWindows licence
7 /////////////////////////////////////////////////////////////////////////// */
8
9 #ifdef __VMS
10 #include <types.h>
11 typedef pid_t GPid;
12 #define G_GNUC_INTERNAL
13 #define GSEAL(x) x
14 #endif
15
16 #include "wx/gtk/private/treeentry_gtk.h"
17
18 /*
19 GtkTreeEntry
20
21 The main reason for this class is to have a holder for both a string
22 and userdata for us to use in wxListXXX classes.
23
24 This is transformable to a string for the Gtk implementations,
25 and the string passed in is duplicated and freed upon destruction.
26
27 As mentioned the real magic here is the transforming it to a string
28 which lets us use it as a entry in a GtkTreeView/GtkListStore
29 and still display it. Otherwise we would need to implement our
30 own model etc..
31 */
32
33 /* forwards */
34 static void wx_tree_entry_class_init(void* g_class, void* class_data);
35 static void wx_tree_entry_string_transform_func(const GValue *src_value,
36 GValue *dest_value);
37 static void wx_tree_entry_dispose(GObject* obj);
38
39 static GObjectClass* parent_class;
40
41 /* public */
42 wxTreeEntry*
wx_tree_entry_new()43 wx_tree_entry_new()
44 {
45 return WX_TREE_ENTRY(g_object_new(WX_TYPE_TREE_ENTRY, NULL));
46 }
47
48 GType
wx_tree_entry_get_type()49 wx_tree_entry_get_type()
50 {
51 static GType tree_entry_type = 0;
52
53 if (!tree_entry_type)
54 {
55 const GTypeInfo tree_entry_info =
56 {
57 sizeof(GObjectClass),
58 NULL, /* base_init */
59 NULL, /* base_finalize */
60 wx_tree_entry_class_init,
61 NULL, /* class_finalize */
62 NULL, /* class_data */
63 sizeof(wxTreeEntry),
64 16, /* n_preallocs */
65 NULL, /* instance_init */
66 NULL /* value_table */
67 };
68 tree_entry_type = g_type_register_static (G_TYPE_OBJECT, "wxTreeEntry",
69 &tree_entry_info,
70 (GTypeFlags)0);
71 g_value_register_transform_func(tree_entry_type, G_TYPE_STRING,
72 wx_tree_entry_string_transform_func);
73 }
74
75 return tree_entry_type;
76 }
77
wx_tree_entry_get_collate_key(wxTreeEntry * entry)78 char* wx_tree_entry_get_collate_key(wxTreeEntry* entry)
79 {
80 if (entry->collate_key == NULL)
81 {
82 char* temp = g_utf8_casefold(entry->label, -1);
83 entry->collate_key = g_utf8_collate_key(temp, -1);
84 g_free(temp);
85 }
86 return entry->collate_key;
87 }
88
wx_tree_entry_get_label(wxTreeEntry * entry)89 char* wx_tree_entry_get_label(wxTreeEntry* entry)
90 {
91 g_assert(WX_IS_TREE_ENTRY(entry));
92 return entry->label;
93 }
94
wx_tree_entry_get_userdata(wxTreeEntry * entry)95 void* wx_tree_entry_get_userdata(wxTreeEntry* entry)
96 {
97 g_assert(WX_IS_TREE_ENTRY(entry));
98 return entry->userdata;
99 }
100
wx_tree_entry_set_label(wxTreeEntry * entry,const char * label)101 void wx_tree_entry_set_label(wxTreeEntry* entry, const char* label)
102 {
103 g_assert(WX_IS_TREE_ENTRY(entry));
104
105 /* free previous if it exists */
106 if(entry->label)
107 {
108 g_free(entry->label);
109 g_free(entry->collate_key);
110 }
111
112 entry->label = g_strdup(label);
113 entry->collate_key = NULL;
114 }
115
wx_tree_entry_set_userdata(wxTreeEntry * entry,void * userdata)116 void wx_tree_entry_set_userdata(wxTreeEntry* entry, void* userdata)
117 {
118 g_assert(WX_IS_TREE_ENTRY(entry));
119 entry->userdata = userdata;
120 }
121
wx_tree_entry_set_destroy_func(wxTreeEntry * entry,wxTreeEntryDestroy destroy_func,gpointer destroy_func_data)122 void wx_tree_entry_set_destroy_func(wxTreeEntry* entry,
123 wxTreeEntryDestroy destroy_func,
124 gpointer destroy_func_data)
125 {
126 g_assert(WX_IS_TREE_ENTRY(entry));
127 entry->destroy_func = destroy_func;
128 entry->destroy_func_data = destroy_func_data;
129 }
130
131 /* private */
wx_tree_entry_class_init(void * g_class,void * class_data)132 static void wx_tree_entry_class_init(void* g_class, void* class_data)
133 {
134 GObjectClass* gobject_class = G_OBJECT_CLASS(g_class);
135 gobject_class->dispose = wx_tree_entry_dispose;
136 parent_class = G_OBJECT_CLASS(g_type_class_peek_parent(g_class));
137 }
138
wx_tree_entry_string_transform_func(const GValue * src_value,GValue * dest_value)139 static void wx_tree_entry_string_transform_func(const GValue *src_value,
140 GValue *dest_value)
141 {
142 wxTreeEntry* entry;
143 void* src_ptr = g_value_peek_pointer(src_value);
144
145 /* Make sure src is a treeentry and dest can hold a string */
146 g_assert(WX_IS_TREE_ENTRY(src_ptr));
147 g_assert(G_VALUE_HOLDS(dest_value, G_TYPE_STRING));
148
149 entry = WX_TREE_ENTRY(src_ptr);
150 g_value_set_string(dest_value, entry->label);
151 }
152
wx_tree_entry_dispose(GObject * obj)153 static void wx_tree_entry_dispose(GObject* obj)
154 {
155 wxTreeEntry* entry;
156
157 g_assert(WX_IS_TREE_ENTRY(obj));
158
159 entry = WX_TREE_ENTRY(obj);
160
161 /* free label if it exists */
162 if(entry->label)
163 {
164 g_free(entry->label);
165 g_free(entry->collate_key);
166 entry->label = NULL;
167 entry->collate_key = NULL;
168 }
169
170 /* call destroy callback if it exists */
171 if(entry->destroy_func)
172 {
173 (*entry->destroy_func) (entry, entry->destroy_func_data);
174 entry->destroy_func = NULL;
175 entry->destroy_func_data = NULL;
176 }
177
178 /* clear userdata */
179 entry->userdata = NULL;
180
181 parent_class->dispose(obj);
182 }
183