Mercurial > hg > toolkit / file diff

--- a/ui/win32/button.c	Wed Nov 12 18:04:21 2025 +0100
+++ b/ui/win32/button.c	Thu Nov 13 21:29:00 2025 +0100
@@ -32,6 +32,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <cx/array_list.h>
+
 #include <commctrl.h>
 
 static W32WidgetClass button_widget_class = {
@@ -50,6 +52,14 @@
     .destroy  = w32_widget_default_destroy
 };
 
+static W32WidgetClass radiobutton_widget_class = {
+    .eventproc = ui_radiobutton_eventproc,
+    .enable = w32_widget_default_enable,
+    .show = w32_widget_default_show,
+    .get_preferred_size = ui_button_get_preferred_size,
+    .destroy  = w32_widget_default_destroy
+};
+
 UIWIDGET ui_button_create(UiObject *obj, UiButtonArgs *args) {
     HINSTANCE hInstance = GetModuleHandle(NULL);
     UiContainerPrivate *container = ui_obj_container(obj);
@@ -196,3 +206,107 @@
         w->callback(&e, w->callbackdata);
     }
 }
+
+
+UIWIDGET ui_radiobutton_create(UiObject *obj, UiToggleArgs *args) {
+    HINSTANCE hInstance = GetModuleHandle(NULL);
+    UiContainerPrivate *container = ui_obj_container(obj);
+    HWND parent = ui_container_get_parent(container);
+    UiLayout layout = UI_ARGS2LAYOUT(args);
+
+    HWND hwnd = CreateWindow(
+            "BUTTON",
+            args->label,
+            WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON | WS_GROUP ,
+            0, 0, 100, 30,
+            parent,
+            (HMENU)1,
+            hInstance,
+            NULL);
+    ui_win32_set_ui_font(hwnd);
+
+    W32Widget *widget = w32_widget_create(&radiobutton_widget_class, hwnd, sizeof(UiWidget));
+    ui_container_add(container, widget, &layout);
+    UiWidget *btn = (UiWidget*)widget;
+
+    UiVar *var = uic_widget_var(obj->ctx, obj->ctx, args->value, args->varname, UI_VAR_INTEGER);
+    if (var) {
+        UiInteger *i = var->value;
+        // Use a CxList as binding object (i->obj) and add all radiobuttons to it
+        // The first radiobutton, which binds to this var, creates the CxList
+        CxList *group = NULL;
+        if (i->obj) {
+            group = i->obj;
+        } else {
+            group = cxArrayListCreate(obj->ctx->allocator, NULL, CX_STORE_POINTERS, 8);
+            i->obj = group;
+        }
+
+        cxListAdd(group, btn);
+        if (i->value == cxListSize(group)) {
+            // TODO: select
+        }
+    }
+
+    btn->obj = obj;
+    btn->var = var;
+    btn->callback = args->onchange;
+    btn->callbackdata = args->onchangedata;
+
+    return widget;
+}
+
+void ui_radiobutton_eventproc(W32Widget *widget, HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+    if (uMsg != WM_COMMAND) {
+        return;
+    }
+    UiWidget *w = (UiWidget*)widget;
+
+    int checked = SendMessage(w->widget.hwnd, BM_GETCHECK, 0, 0);
+    if (!checked) {
+        return; // ignore uncheck events
+    }
+
+    int b = 0;
+    if (w->var) {
+        UiInteger *i = w->var->value;
+        CxList *group = i->obj;
+        // Find selected index and uncheck all radiobuttons in this group
+        // that are not this event widget
+        CxIterator iter = cxListIterator(group);
+        cx_foreach(UiWidget *, radiobutton, iter) {
+            if (radiobutton == w) {
+                i->value = iter.index+1;
+                b = i->value;
+            } else {
+                SendMessage(radiobutton->widget.hwnd, BM_SETCHECK, BST_UNCHECKED, 0);
+            }
+        }
+    }
+
+    UiEvent e;
+    e.obj = w->obj;
+    e.document = e.obj->ctx->document;
+    e.window = e.obj->window;
+    e.eventdata = NULL;
+    e.eventdatatype = 0;
+    e.intval = b;
+    e.set = ui_get_setop();
+
+    if (w->callback) {
+        w->callback(&e, w->callbackdata);
+    }
+}
+
+int64_t ui_radiobutton_get(UiInteger *i) {
+    return i->value;
+}
+
+void ui_radiobutton_set(UiInteger *i, int64_t v) {
+    CxList *group = i->obj;
+    CxIterator iter = cxListIterator(group);
+    cx_foreach(UiWidget *, radiobutton, iter) {
+        SendMessage(radiobutton->widget.hwnd, BM_SETCHECK, iter.index+1 == v ? BST_CHECKED : BST_UNCHECKED, 0);
+    }
+    i->value = v;
+}