mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-12-24 12:41:16 +00:00
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/* Constraints/Builder
|
|
*
|
|
* GtkConstraintLayouts can be created in .ui files, and constraints can
|
|
* be set up at that time as well, as this example demonstrates. It shows
|
|
* various ways to do spacing and sizing with constraints.
|
|
*
|
|
* Make the window wider to see the rows react differently
|
|
*/
|
|
|
|
#include <glib/gi18n.h>
|
|
#include <gtk/gtk.h>
|
|
|
|
G_DECLARE_FINAL_TYPE (ConstraintsGrid, constraints_grid, CONSTRAINTS, GRID, GtkWidget)
|
|
|
|
struct _ConstraintsGrid
|
|
{
|
|
GtkWidget parent_instance;
|
|
};
|
|
|
|
G_DEFINE_TYPE (ConstraintsGrid, constraints_grid, GTK_TYPE_WIDGET)
|
|
|
|
static void
|
|
constraints_grid_init (ConstraintsGrid *grid)
|
|
{
|
|
}
|
|
|
|
static void
|
|
constraints_grid_dispose (GObject *object)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (object);
|
|
GtkWidget *child;
|
|
|
|
while ((child = gtk_widget_get_first_child (widget)))
|
|
gtk_widget_unparent (child);
|
|
|
|
G_OBJECT_CLASS (constraints_grid_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
constraints_grid_class_init (ConstraintsGridClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
|
|
object_class->dispose = constraints_grid_dispose;
|
|
}
|
|
|
|
GtkWidget *
|
|
do_constraints_builder (GtkWidget *do_widget)
|
|
{
|
|
static GtkWidget *window;
|
|
|
|
if (!window)
|
|
{
|
|
GtkBuilder *builder;
|
|
|
|
g_type_ensure (constraints_grid_get_type ());
|
|
|
|
builder = gtk_builder_new_from_resource ("/constraints_builder/constraints_builder.ui");
|
|
|
|
window = GTK_WIDGET (gtk_builder_get_object (builder, "window1"));
|
|
gtk_window_set_display (GTK_WINDOW (window),
|
|
gtk_widget_get_display (do_widget));
|
|
g_object_add_weak_pointer (G_OBJECT (window), (gpointer *)&window);
|
|
|
|
g_object_unref (builder);
|
|
}
|
|
|
|
if (!gtk_widget_get_visible (window))
|
|
gtk_widget_set_visible (window, TRUE);
|
|
else
|
|
gtk_window_destroy (GTK_WINDOW (window));
|
|
|
|
return window;
|
|
}
|