--- a/ui/motif/list.c Tue Dec 31 17:57:43 2024 +0100
+++ b/ui/motif/list.c Wed Jan 01 11:39:42 2025 +0100
@@ -34,3 +34,165 @@
#include "list.h"
#include "../common/object.h"
+UIWIDGET ui_listview_create(UiObject* obj, UiListArgs args) {
+ Arg xargs[16];
+ int n = 0;
+
+ UiContainerPrivate *ctn = ui_obj_container(obj);
+ UI_APPLY_LAYOUT(ctn->layout, args);
+
+ if(args.multiselection) {
+ XtSetArg(xargs[n], XmNselectionPolicy, XmEXTENDED_SELECT); n++;
+ } else {
+ XtSetArg(xargs[n], XmNselectionPolicy, XmSINGLE_SELECT); n++;
+ }
+
+ char *name = args.name ? (char*)args.name : "listview";
+ Widget parent = ctn->prepare(ctn, xargs, &n);
+ Widget widget = XmCreateScrolledList(parent, name, xargs, n);
+ XtManageChild(widget);
+
+ UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args.list, args.varname, UI_VAR_LIST);
+
+ UiListView *listview = malloc(sizeof(UiListView));
+ memset(listview, 0, sizeof(UiListView));
+ listview->obj = obj;
+ listview->widget = widget;
+ listview->getvalue = args.getvalue ? args.getvalue : ui_strmodel_getvalue;
+ listview->var = var;
+ listview->onactivate = args.onactivate;
+ listview->onactivatedata = args.onactivatedata;
+ listview->onselection = args.onselection;
+ listview->onselectiondata = args.onselectiondata;
+
+ if(var) {
+ UiList *list = var->value;
+ list->obj = listview;
+ list->update = ui_listview_update;
+ list->getselection = ui_listview_getselection;
+ list->setselection = ui_listview_setselection;
+ ui_listview_update(list, 0);
+ }
+
+ XtAddCallback(
+ widget,
+ XmNdestroyCallback,
+ (XtCallbackProc)ui_listview_destroy,
+ listview);
+
+ XtAddCallback(
+ widget,
+ XmNdefaultActionCallback,
+ (XtCallbackProc)ui_listview_activate,
+ listview);
+ XtAddCallback(
+ widget,
+ XmNextendedSelectionCallback,
+ (XtCallbackProc)ui_listview_selection,
+ listview);
+ XtAddCallback(
+ widget,
+ XmNsingleSelectionCallback,
+ (XtCallbackProc)ui_listview_selection,
+ listview);
+
+ return widget;
+}
+
+void ui_listview_destroy(Widget w, UiListView *listview, XtPointer d) {
+ // TODO
+}
+
+static void list_callback(UiObject *obj, UiListSelection sel, ui_callback callback, void *userdata) {
+ UiEvent event;
+ event.obj = obj;
+ event.window = obj->window;
+ event.document = obj->ctx->document;
+ event.eventdata = &sel;
+ event.intval = sel.count > 0 ? sel.rows[0] : -1;
+ callback(&event, userdata);
+}
+
+static void listview_save_selection(UiListView *listview, XmListCallbackStruct *cb) {
+ UiListSelection sel = { cb->selected_item_count, NULL };
+ if(sel.count > 0) {
+ sel.rows = calloc(sel.count, sizeof(int));
+ for(int i=0;i<sel.count;i++) {
+ sel.rows[i] = cb->selected_item_positions[i]-1;
+ }
+ }
+ free(listview->current_selection.rows);
+ listview->current_selection = sel;
+}
+
+void ui_listview_activate(Widget w, UiListView *listview, XmListCallbackStruct *cb) {
+ listview_save_selection(listview, cb);
+ if(listview->onactivate) {
+ list_callback(listview->obj, listview->current_selection, listview->onactivate, listview->onactivatedata);
+ }
+}
+
+void ui_listview_selection(Widget w, UiListView *listview, XmListCallbackStruct *cb) {
+ listview_save_selection(listview, cb);
+ if(listview->onselection) {
+ list_callback(listview->obj, listview->current_selection, listview->onselection, listview->onselectiondata);
+ }
+}
+
+static XmStringTable create_stringlist(UiList *list, ui_getvaluefunc getvalue, int *count) {
+ int num = list->count(list);
+ XmStringTable items = (XmStringTable)XtMalloc(num * sizeof(XmString));
+ void *data = list->first(list);
+ for(int i=0;i<num;i++) {
+ char *s = getvalue(data, 0);
+ items[i] = XmStringCreateLocalized(s ? s : "");
+ data = list->next(list);
+ }
+
+ *count = num;
+ return items;
+}
+
+void ui_listview_update(UiList *list, int i) {
+ UiListView *listview = list->obj;
+
+ int count;
+ XmStringTable items = create_stringlist(
+ list,
+ listview->getvalue,
+ &count);
+
+ XtVaSetValues(
+ listview->widget,
+ XmNitems, count == 0 ? NULL : items,
+ XmNitemCount,
+ count,
+ NULL);
+
+ for (int i=0;i<count;i++) {
+ XmStringFree(items[i]);
+ }
+ XtFree((char *)items);
+}
+
+UiListSelection ui_listview_getselection(UiList *list) {
+ UiListView *listview = list->obj;
+ UiListSelection sel = { listview->current_selection.count, NULL };
+ if(sel.count > 0) {
+ sel.rows = calloc(sel.count, sizeof(int));
+ memcpy(sel.rows, listview->current_selection.rows, sel.count*sizeof(int));
+ }
+ return sel;
+}
+
+void ui_listview_setselection(UiList *list, UiListSelection selection) {
+ UiListView *listview = list->obj;
+ XmListDeselectAllItems(listview->widget);
+ for(int i=0;i<selection.count;i++) {
+ XmListSelectPos(listview->widget, selection.rows[i]+1, False);
+ }
+}
+
+void* ui_strmodel_getvalue(void *elm, int column) {
+ return column == 0 ? elm : NULL;
+}