comparison: ui/gtk/container.c
ui/gtk/container.c
- changeset 101
- 7b3a3130be44
- parent 100
- d2bd73d28ff1
equal
deleted
inserted
replaced
| 100:d2bd73d28ff1 | 101:7b3a3130be44 |
|---|---|
| 944 return NULL; | 944 return NULL; |
| 945 } | 945 } |
| 946 | 946 |
| 947 | 947 |
| 948 | 948 |
| 949 /* -------------------- ItemList Container -------------------- */ | |
| 950 | |
| 951 static void remove_item(void *data, void *item) { | |
| 952 UiGtkItemListContainer *ct = data; | |
| 953 UiObject *obj = item; | |
| 954 if(ct->remove_items) { | |
| 955 BOX_REMOVE(ct->widget, obj->widget); | |
| 956 } | |
| 957 uic_object_destroy(obj); | |
| 958 } | |
| 959 | |
| 960 static void update_itemlist(UiList *list, int c) { | |
| 961 UiGtkItemListContainer *ct = list->obj; | |
| 962 | |
| 963 CxMap *new_items = cxHashMapCreateSimple(CX_STORE_POINTERS); | |
| 964 new_items->collection.advanced_destructor = remove_item; | |
| 965 new_items->collection.destructor_data = ct; | |
| 966 | |
| 967 // only create new widgets for new elements, so at first we have | |
| 968 // to find which elements are new | |
| 969 // check which elements in the list are already in the container | |
| 970 void *elm = list->first(list); | |
| 971 int j = 0; | |
| 972 while(elm) { | |
| 973 CxHashKey key = cx_hash_key(&elm, sizeof(void*)); | |
| 974 UiObject *item_obj = NULL; | |
| 975 cxMapRemoveAndGet(ct->current_items, key, &item_obj); | |
| 976 if(item_obj) { | |
| 977 g_object_ref(G_OBJECT(item_obj->widget)); | |
| 978 BOX_REMOVE(ct->widget, item_obj->widget); | |
| 979 cxMapPut(new_items, key, item_obj); | |
| 980 } | |
| 981 elm = list->next(list); | |
| 982 j++; | |
| 983 } | |
| 984 | |
| 985 // ct->current_items only contains elements, that are not in the list | |
| 986 cxMapFree(ct->current_items); // calls destructor remove_item | |
| 987 ct->current_items = new_items; | |
| 988 | |
| 989 // add all items | |
| 990 int index = 0; | |
| 991 elm = list->first(list); | |
| 992 while(elm) { | |
| 993 CxHashKey key = cx_hash_key(&elm, sizeof(void*)); | |
| 994 UiObject *item_obj = cxMapGet(ct->current_items, key); | |
| 995 if(item_obj) { | |
| 996 // re-add previously created widget | |
| 997 ui_box_container_add(ct->container, item_obj->widget, FALSE); | |
| 998 } else { | |
| 999 // create new widget and object for this list element | |
| 1000 CxMempool *mp = cxBasicMempoolCreate(256); | |
| 1001 const CxAllocator *a = mp->allocator; | |
| 1002 UiObject *obj = cxCalloc(a, 1, sizeof(UiObject)); | |
| 1003 obj->ctx = uic_context(obj, mp); | |
| 1004 obj->window = NULL; | |
| 1005 obj->widget = ui_subcontainer_create( | |
| 1006 ct->subcontainer, | |
| 1007 obj, | |
| 1008 ct->spacing, | |
| 1009 ct->columnspacing, | |
| 1010 ct->rowspacing, | |
| 1011 ct->margin); | |
| 1012 ui_box_container_add(ct->container, obj->widget, FALSE); | |
| 1013 if(ct->create_ui) { | |
| 1014 ct->create_ui(obj, index, elm, ct->userdata); | |
| 1015 } | |
| 1016 cxMapPut(new_items, key, obj); | |
| 1017 } | |
| 1018 elm = list->next(list); | |
| 1019 index++; | |
| 1020 } | |
| 1021 } | |
| 1022 | |
| 1023 static void destroy_itemlist_container(GtkWidget *w, UiGtkItemListContainer *container) { | |
| 1024 container->remove_items = FALSE; | |
| 1025 cxMapFree(container->current_items); | |
| 1026 free(container); | |
| 1027 } | |
| 1028 | |
| 1029 UIWIDGET ui_itemlist_create(UiObject *obj, UiItemListContainerArgs args) { | |
| 1030 UiObject *current = uic_current_obj(obj); | |
| 1031 UiContainer *ct = current->container; | |
| 1032 UI_APPLY_LAYOUT1(current, args); | |
| 1033 | |
| 1034 GtkWidget *box = args.container == UI_CONTAINER_VBOX ? ui_gtk_vbox_new(args.spacing) : ui_gtk_hbox_new(args.spacing); | |
| 1035 ui_set_name_and_style(box, args.name, args.style_class); | |
| 1036 GtkWidget *widget = args.margin > 0 ? ui_box_set_margin(box, args.margin) : box; | |
| 1037 ct->add(ct, widget, TRUE); | |
| 1038 | |
| 1039 UiGtkItemListContainer *container = malloc(sizeof(UiGtkItemListContainer)); | |
| 1040 container->parent = obj; | |
| 1041 container->widget = box; | |
| 1042 container->container = ui_box_container(current, box, args.container); | |
| 1043 container->create_ui = args.create_ui; | |
| 1044 container->userdata = args.userdata; | |
| 1045 container->subcontainer = args.subcontainer; | |
| 1046 container->current_items = cxHashMapCreateSimple(CX_STORE_POINTERS); | |
| 1047 container->current_items->collection.advanced_destructor = remove_item; | |
| 1048 container->current_items->collection.destructor_data = container; | |
| 1049 container->margin = args.sub_margin; | |
| 1050 container->spacing = args.sub_spacing; | |
| 1051 container->columnspacing = args.sub_columnspacing; | |
| 1052 container->rowspacing = args.sub_rowspacing; | |
| 1053 container->remove_items = TRUE; | |
| 1054 | |
| 1055 UiVar* var = uic_widget_var(obj->ctx, current->ctx, args.value, args.varname, UI_VAR_LIST); | |
| 1056 if(var) { | |
| 1057 UiList *list = var->value; | |
| 1058 list->obj = container; | |
| 1059 list->update = update_itemlist; | |
| 1060 update_itemlist(list, 0); | |
| 1061 } | |
| 1062 g_signal_connect( | |
| 1063 box, | |
| 1064 "destroy", | |
| 1065 G_CALLBACK(destroy_itemlist_container), | |
| 1066 container); | |
| 1067 | |
| 1068 return box; | |
| 1069 } | |
| 949 | 1070 |
| 950 | 1071 |
| 951 | 1072 |
| 952 /* | 1073 /* |
| 953 * -------------------- Layout Functions -------------------- | 1074 * -------------------- Layout Functions -------------------- |
