--- a/ui/win32/list.c Wed Nov 19 12:17:59 2025 +0100
+++ b/ui/win32/list.c Wed Nov 19 13:02:55 2025 +0100
@@ -26,6 +26,11 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <cx/array_list.h>
+
#include "list.h"
#include "container.h"
@@ -52,11 +57,14 @@
return NULL;
}
-
+/*
+ * Creates an UiListView widget object and initializes it from the UiListArgs
+ */
static UiListView* create_listview_widget(UiObject *obj, HWND hwnd, UiListArgs *args, UiBool table) {
UiListView *listview = w32_widget_create(&listview_widget_class, hwnd, sizeof(UiListView));
listview->widget.hwnd = hwnd;
- listview->preferred_width = args->width ? args->width : 300;
+ listview->obj = obj;
+ listview->preferred_width = args->width ? args->width : 300; // 300: default width/height
listview->preferred_height = args->height ? args->height : 300;
listview->onactivate = args->onactivate;
listview->onactivatedata = args->onactivatedata;
@@ -70,6 +78,7 @@
listview->ondropdata = args->ondropdata;
listview->istable = table;
+ // convert ui_getvaluefunc into ui_getvaluefunc2 if necessary
ui_getvaluefunc2 getvalue = args->getvalue2;
void *getvaluedata = args->getvalue2data;
if(!getvalue) {
@@ -105,7 +114,6 @@
hInstance,
NULL);
ui_win32_set_ui_font(hwnd);
-
ListView_SetExtendedListViewStyle(
hwnd,
LVS_EX_FULLROWSELECT //| LVS_EX_GRIDLINES
@@ -114,7 +122,8 @@
UiListView *listview = create_listview_widget(obj, hwnd, args, table);
ui_container_add(container, (W32Widget*)listview, &layout);
- // model
+ // init list model
+ // always initialize listview->model
int numcolumns = 0;
if (table) {
if (args->model) {
@@ -130,6 +139,7 @@
numcolumns = 1;
}
+ // create columns
UiModel *model = listview->model;
for (int i=0;i<numcolumns;i++) {
LVCOLUMN col;
@@ -151,6 +161,7 @@
ListView_InsertColumn(hwnd, i, &col);
}
+ // bind the listview to the provided UiList
if (listview->var) {
UiList *list = listview->var->value;
list->obj = listview;
@@ -164,8 +175,80 @@
return (W32Widget*)listview;
}
+static UiListSelection listview_get_selection(UiListView *listview) {
+ UiListSelection sel = { 0, NULL };
+ HWND hwnd = listview->widget.hwnd;
+
+ CX_ARRAY_DECLARE(int, indices);
+ cx_array_initialize(indices, 8);
+
+ int index = -1;
+ while ((index = ListView_GetNextItem(hwnd, index, LVNI_SELECTED)) != -1) {
+ cx_array_simple_add(indices, index);
+ }
+
+ if (indices_size > 0) {
+ sel.rows = indices;
+ sel.count = indices_size;
+ }
+
+ return sel;
+}
+
+// listview class event proc
void ui_listview_eventproc(W32Widget *widget, HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ UiListView *listview = (UiListView*)widget;
+ switch (uMsg) {
+ case WM_NOTIFY: {
+ LPNMHDR hdr = (LPNMHDR)lParam;
+ switch (hdr->code) {
+ case LVN_ITEMCHANGED: {
+ LPNMLISTVIEW lv = (LPNMLISTVIEW)lParam;
+ int row = lv->iItem;
+ if ((lv->uChanged & LVIF_STATE) && (lv->uNewState & LVIS_SELECTED) && listview->onselection) {
+ UiListSelection sel = listview_get_selection(listview);
+ UiEvent event;
+ event.obj = listview->obj;
+ event.window = listview->obj->window;
+ event.document = listview->obj->ctx->document;
+ event.eventdata = &sel;
+ event.eventdatatype = UI_EVENT_DATA_LIST_SELECTION;
+ event.intval = row;
+ event.set = ui_get_setop();
+ listview->onselection(&event, listview->onselectiondata);
+
+ ui_listselection_free(sel);
+ }
+ break;
+ }
+ case LVN_ITEMACTIVATE: {
+ LPNMLISTVIEW lv = (LPNMLISTVIEW)lParam;
+ int row = lv->iItem;
+ if (listview->onactivate) {
+ UiEvent event;
+ event.obj = listview->obj;
+ event.window = listview->obj->window;
+ event.document = listview->obj->ctx->document;
+ event.eventdata = NULL;
+ event.eventdatatype = UI_EVENT_DATA_LIST_ELM;
+ event.intval = row;
+ event.set = ui_get_setop();
+
+ if (listview->var) {
+ UiList *list = listview->var->value;
+ event.eventdata = list->get(list, row);
+ event.eventdatatype = UI_EVENT_DATA_LIST_ELM;
+ }
+
+ listview->onactivate(&event, listview->onactivatedata);
+ }
+ break;
+ }
+ }
+ break;
+ }
+ }
}
W32Size ui_listview_get_preferred_size(W32Widget *widget) {
@@ -176,6 +259,13 @@
return size;
}
+/*
+ * Creates and inserts an LVITEM
+ *
+ * list: An UiList bound to an UiListView
+ * row: row index
+ * elm: list element (same as list->get(list, row))
+ */
static void insert_item(UiList *list, int row, void *elm) {
UiListView *listview = (UiListView*)list->obj;
HWND hwnd = listview->widget.hwnd;
@@ -188,6 +278,8 @@
int idx = -1;
for (int col=0;col<model->columns;col++) {
UiBool freeResult = FALSE;
+ // convert the list element to a value, that can be displayed in the list view
+ // TODO: handle all model types
char *str = listview->getvalue(list, elm, row, col, listview->getvaluedata, &freeResult);
if (col == 0) {
item.pszText = str;
@@ -202,6 +294,12 @@
}
}
+/*
+ * UiList->update function
+ *
+ * Updates one or all rows
+ * row: list index or -1 for updating all rows
+ */
void ui_listview_update(UiList *list, int row) {
UiListView *listview = (UiListView*)list->obj;
HWND hwnd = listview->widget.hwnd;
@@ -221,24 +319,27 @@
insert_item(list, row, elm);
}
+ // re-adjust all columns
for (int i=0;i<model->columns;i++) {
ListView_SetColumnWidth(hwnd, i, LVSCW_AUTOSIZE);
}
}
UiListSelection ui_listview_getselection(UiList *list) {
- UiListSelection sel = { 0, NULL };
- return sel;
+ UiListView *listview = (UiListView*)list->obj;
+ return listview_get_selection(listview);
}
void ui_listview_setselection(UiList *list, UiListSelection selection) {
}
+// public API
UIWIDGET ui_listview_create(UiObject *obj, UiListArgs *args) {
return listview_create(obj, args, FALSE);
}
+// public API
UIWIDGET ui_table_create(UiObject *obj, UiListArgs *args) {
return listview_create(obj, args, TRUE);
}