another UI attempt, I guess.

sorry.

src/libui_sdl/libui/unix/group.c

@@ -0,0 +1,89 @@
+// 11 june 2015
+#include "uipriv_unix.h"
+
+struct uiGroup {
+	uiUnixControl c;
+	GtkWidget *widget;
+	GtkContainer *container;
+	GtkBin *bin;
+	GtkFrame *frame;
+
+	// unfortunately, even though a GtkFrame is a GtkBin, calling gtk_container_set_border_width() on it /includes/ the GtkFrame's label; we don't want tht
+	struct child *child;
+
+	int margined;
+};
+
+uiUnixControlAllDefaultsExceptDestroy(uiGroup)
+
+static void uiGroupDestroy(uiControl *c)
+{
+	uiGroup *g = uiGroup(c);
+
+	if (g->child != NULL)
+		childDestroy(g->child);
+	g_object_unref(g->widget);
+	uiFreeControl(uiControl(g));
+}
+
+char *uiGroupTitle(uiGroup *g)
+{
+	return uiUnixStrdupText(gtk_frame_get_label(g->frame));
+}
+
+void uiGroupSetTitle(uiGroup *g, const char *text)
+{
+	gtk_frame_set_label(g->frame, text);
+}
+
+void uiGroupSetChild(uiGroup *g, uiControl *child)
+{
+	if (g->child != NULL)
+		childRemove(g->child);
+	g->child = newChildWithBox(child, uiControl(g), g->container, g->margined);
+}
+
+int uiGroupMargined(uiGroup *g)
+{
+	return g->margined;
+}
+
+void uiGroupSetMargined(uiGroup *g, int margined)
+{
+	g->margined = margined;
+	if (g->child != NULL)
+		childSetMargined(g->child, g->margined);
+}
+
+uiGroup *uiNewGroup(const char *text)
+{
+	uiGroup *g;
+	gfloat yalign;
+	GtkLabel *label;
+	PangoAttribute *bold;
+	PangoAttrList *boldlist;
+
+	uiUnixNewControl(uiGroup, g);
+
+	g->widget = gtk_frame_new(text);
+	g->container = GTK_CONTAINER(g->widget);
+	g->bin = GTK_BIN(g->widget);
+	g->frame = GTK_FRAME(g->widget);
+
+	// with GTK+, groupboxes by default have frames and slightly x-offset regular text
+	// they should have no frame and fully left-justified, bold text
+	// preserve default y-alignment
+	gtk_frame_get_label_align(g->frame, NULL, &yalign);
+	gtk_frame_set_label_align(g->frame, 0, yalign);
+	gtk_frame_set_shadow_type(g->frame, GTK_SHADOW_NONE);
+	label = GTK_LABEL(gtk_frame_get_label_widget(g->frame));
+	// this is the boldness level used by GtkPrintUnixDialog
+	// (it technically uses "bold" but see pango's pango-enum-types.c for the name conversion; GType is weird)
+	bold = pango_attr_weight_new(PANGO_WEIGHT_BOLD);
+	boldlist = pango_attr_list_new();
+	pango_attr_list_insert(boldlist, bold);
+	gtk_label_set_attributes(label, boldlist);
+	pango_attr_list_unref(boldlist);		// thanks baedert in irc.gimp.net/#gtk+
+
+	return g;
+}