--- a/ui/gtk/container.c Mon Sep 29 21:34:43 2025 +0200 +++ b/ui/gtk/container.c Wed Oct 01 14:20:10 2025 +0200 @@ -1053,6 +1053,34 @@ } #endif +/* ------------------------ Split Window Panels ------------------------ */ + +static UIWIDGET splitwindow_panel(UiObject *obj, GtkWidget *pbox, UiSidebarArgs *args) { + if(!pbox) { + fprintf(stderr, "Error: window is not a splitview window\n"); + return NULL; + } + + GtkWidget *box = ui_gtk_vbox_new(args->spacing); + ui_box_set_margin(box, args->margin); + BOX_ADD_EXPAND(pbox, box); + + UiObject *newobj = uic_object_new(obj, box); + newobj->container = ui_box_container(obj, box, UI_CONTAINER_VBOX); + uic_obj_add(obj, newobj); + + return box; +} + +UIWIDGET ui_left_panel_create(UiObject *obj, UiSidebarArgs *args) { + return splitwindow_panel(obj, g_object_get_data(G_OBJECT(obj->widget), "ui_left_panel"), args); +} + +UIWIDGET ui_right_panel_create(UiObject *obj, UiSidebarArgs *args) { + return splitwindow_panel(obj, g_object_get_data(G_OBJECT(obj->widget), "ui_right_panel"), args); +} + + /* -------------------- Splitpane -------------------- */ static GtkWidget* create_paned(UiOrientation orientation) {