| 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* |
| 43 | wx_tree_entry_new() |
| 44 | { |
| 45 | return WX_TREE_ENTRY(g_object_new(WX_TYPE_TREE_ENTRY, NULL)); |
| 46 | } |
| 47 | |
| 48 | GType |
| 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 | |
| 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 | |
| 89 | char* wx_tree_entry_get_label(wxTreeEntry* entry) |
| 90 | { |
| 91 | g_assert(WX_IS_TREE_ENTRY(entry)); |
| 92 | return entry->label; |
| 93 | } |
| 94 | |
| 95 | void* wx_tree_entry_get_userdata(wxTreeEntry* entry) |
| 96 | { |
| 97 | g_assert(WX_IS_TREE_ENTRY(entry)); |
| 98 | return entry->userdata; |
| 99 | } |
| 100 | |
| 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 | |
| 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 | |
| 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 */ |
| 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 | |
| 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 | |
| 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 | } |