comparison: ui/motif/list.c
ui/motif/list.c
- branch
- newapi
- changeset 427
- 7ead63398a50
- parent 406
- 0ebf9d7b23e8
equal
deleted
inserted
replaced
| 426:3eb26df703bf | 427:7ead63398a50 |
|---|---|
| 32 #include "container.h" | 32 #include "container.h" |
| 33 | 33 |
| 34 #include "list.h" | 34 #include "list.h" |
| 35 #include "../common/object.h" | 35 #include "../common/object.h" |
| 36 | 36 |
| 37 UIWIDGET ui_listview_create(UiObject* obj, UiListArgs args) { | |
| 38 Arg xargs[16]; | |
| 39 int n = 0; | |
| 40 | |
| 41 UiContainerPrivate *ctn = ui_obj_container(obj); | |
| 42 UI_APPLY_LAYOUT(ctn->layout, args); | |
| 43 | |
| 44 if(args.multiselection) { | |
| 45 XtSetArg(xargs[n], XmNselectionPolicy, XmEXTENDED_SELECT); n++; | |
| 46 } else { | |
| 47 XtSetArg(xargs[n], XmNselectionPolicy, XmSINGLE_SELECT); n++; | |
| 48 } | |
| 49 | |
| 50 char *name = args.name ? (char*)args.name : "listview"; | |
| 51 Widget parent = ctn->prepare(ctn, xargs, &n); | |
| 52 Widget widget = XmCreateScrolledList(parent, name, xargs, n); | |
| 53 XtManageChild(widget); | |
| 54 | |
| 55 UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args.list, args.varname, UI_VAR_LIST); | |
| 56 | |
| 57 UiListView *listview = malloc(sizeof(UiListView)); | |
| 58 memset(listview, 0, sizeof(UiListView)); | |
| 59 listview->obj = obj; | |
| 60 listview->widget = widget; | |
| 61 listview->getvalue = args.getvalue ? args.getvalue : ui_strmodel_getvalue; | |
| 62 listview->var = var; | |
| 63 listview->onactivate = args.onactivate; | |
| 64 listview->onactivatedata = args.onactivatedata; | |
| 65 listview->onselection = args.onselection; | |
| 66 listview->onselectiondata = args.onselectiondata; | |
| 67 | |
| 68 if(var) { | |
| 69 UiList *list = var->value; | |
| 70 list->obj = listview; | |
| 71 list->update = ui_listview_update; | |
| 72 list->getselection = ui_listview_getselection; | |
| 73 list->setselection = ui_listview_setselection; | |
| 74 ui_listview_update(list, 0); | |
| 75 } | |
| 76 | |
| 77 XtAddCallback( | |
| 78 widget, | |
| 79 XmNdestroyCallback, | |
| 80 (XtCallbackProc)ui_listview_destroy, | |
| 81 listview); | |
| 82 | |
| 83 XtAddCallback( | |
| 84 widget, | |
| 85 XmNdefaultActionCallback, | |
| 86 (XtCallbackProc)ui_listview_activate, | |
| 87 listview); | |
| 88 XtAddCallback( | |
| 89 widget, | |
| 90 XmNextendedSelectionCallback, | |
| 91 (XtCallbackProc)ui_listview_selection, | |
| 92 listview); | |
| 93 XtAddCallback( | |
| 94 widget, | |
| 95 XmNsingleSelectionCallback, | |
| 96 (XtCallbackProc)ui_listview_selection, | |
| 97 listview); | |
| 98 | |
| 99 return widget; | |
| 100 } | |
| 101 | |
| 102 void ui_listview_destroy(Widget w, UiListView *listview, XtPointer d) { | |
| 103 // TODO | |
| 104 } | |
| 105 | |
| 106 static void list_callback(UiObject *obj, UiListSelection sel, ui_callback callback, void *userdata) { | |
| 107 UiEvent event; | |
| 108 event.obj = obj; | |
| 109 event.window = obj->window; | |
| 110 event.document = obj->ctx->document; | |
| 111 event.eventdata = &sel; | |
| 112 event.intval = sel.count > 0 ? sel.rows[0] : -1; | |
| 113 callback(&event, userdata); | |
| 114 } | |
| 115 | |
| 116 static void listview_save_selection(UiListView *listview, XmListCallbackStruct *cb) { | |
| 117 UiListSelection sel = { cb->selected_item_count, NULL }; | |
| 118 if(sel.count > 0) { | |
| 119 sel.rows = calloc(sel.count, sizeof(int)); | |
| 120 for(int i=0;i<sel.count;i++) { | |
| 121 sel.rows[i] = cb->selected_item_positions[i]-1; | |
| 122 } | |
| 123 } | |
| 124 free(listview->current_selection.rows); | |
| 125 listview->current_selection = sel; | |
| 126 } | |
| 127 | |
| 128 void ui_listview_activate(Widget w, UiListView *listview, XmListCallbackStruct *cb) { | |
| 129 listview_save_selection(listview, cb); | |
| 130 if(listview->onactivate) { | |
| 131 list_callback(listview->obj, listview->current_selection, listview->onactivate, listview->onactivatedata); | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 void ui_listview_selection(Widget w, UiListView *listview, XmListCallbackStruct *cb) { | |
| 136 listview_save_selection(listview, cb); | |
| 137 if(listview->onselection) { | |
| 138 list_callback(listview->obj, listview->current_selection, listview->onselection, listview->onselectiondata); | |
| 139 } | |
| 140 } | |
| 141 | |
| 142 static XmStringTable create_stringlist(UiList *list, ui_getvaluefunc getvalue, int *count) { | |
| 143 int num = list->count(list); | |
| 144 XmStringTable items = (XmStringTable)XtMalloc(num * sizeof(XmString)); | |
| 145 void *data = list->first(list); | |
| 146 for(int i=0;i<num;i++) { | |
| 147 char *s = getvalue(data, 0); | |
| 148 items[i] = XmStringCreateLocalized(s ? s : ""); | |
| 149 data = list->next(list); | |
| 150 } | |
| 151 | |
| 152 *count = num; | |
| 153 return items; | |
| 154 } | |
| 155 | |
| 156 void ui_listview_update(UiList *list, int i) { | |
| 157 UiListView *listview = list->obj; | |
| 158 | |
| 159 int count; | |
| 160 XmStringTable items = create_stringlist( | |
| 161 list, | |
| 162 listview->getvalue, | |
| 163 &count); | |
| 164 | |
| 165 XtVaSetValues( | |
| 166 listview->widget, | |
| 167 XmNitems, count == 0 ? NULL : items, | |
| 168 XmNitemCount, | |
| 169 count, | |
| 170 NULL); | |
| 171 | |
| 172 for (int i=0;i<count;i++) { | |
| 173 XmStringFree(items[i]); | |
| 174 } | |
| 175 XtFree((char *)items); | |
| 176 } | |
| 177 | |
| 178 UiListSelection ui_listview_getselection(UiList *list) { | |
| 179 UiListView *listview = list->obj; | |
| 180 UiListSelection sel = { listview->current_selection.count, NULL }; | |
| 181 if(sel.count > 0) { | |
| 182 sel.rows = calloc(sel.count, sizeof(int)); | |
| 183 memcpy(sel.rows, listview->current_selection.rows, sel.count*sizeof(int)); | |
| 184 } | |
| 185 return sel; | |
| 186 } | |
| 187 | |
| 188 void ui_listview_setselection(UiList *list, UiListSelection selection) { | |
| 189 UiListView *listview = list->obj; | |
| 190 XmListDeselectAllItems(listview->widget); | |
| 191 for(int i=0;i<selection.count;i++) { | |
| 192 XmListSelectPos(listview->widget, selection.rows[i]+1, False); | |
| 193 } | |
| 194 } | |
| 195 | |
| 196 void* ui_strmodel_getvalue(void *elm, int column) { | |
| 197 return column == 0 ? elm : NULL; | |
| 198 } |
