| 1 | /* Constraints/Builder |
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| 2 | * |
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| 3 | * GtkConstraintLayouts can be created in .ui files, and constraints can |
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| 4 | * be set up at that time as well, as this example demonstrates. It shows |
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| 5 | * various ways to do spacing and sizing with constraints. |
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| 6 | * |
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| 7 | * Make the window wider to see the rows react differently |
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| 8 | */ |
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| 9 | |
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| 10 | #include <glib/gi18n.h> |
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| 11 | #include <gtk/gtk.h> |
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| 12 | |
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| 13 | G_DECLARE_FINAL_TYPE (ConstraintsGrid, constraints_grid, CONSTRAINTS, GRID, GtkWidget) |
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| 14 | |
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| 15 | struct _ConstraintsGrid |
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| 16 | { |
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| 17 | GtkWidget parent_instance; |
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| 18 | }; |
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| 19 | |
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| 20 | G_DEFINE_TYPE (ConstraintsGrid, constraints_grid, GTK_TYPE_WIDGET) |
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| 21 | |
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| 22 | static void |
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| 23 | constraints_grid_init (ConstraintsGrid *grid) |
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| 24 | { |
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| 25 | } |
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| 26 | |
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| 27 | static void |
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| 28 | constraints_grid_dispose (GObject *object) |
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| 29 | { |
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| 30 | GtkWidget *widget = GTK_WIDGET (object); |
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| 31 | GtkWidget *child; |
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| 32 | |
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| 33 | while ((child = gtk_widget_get_first_child (widget))) |
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| 34 | gtk_widget_unparent (widget: child); |
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| 35 | |
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| 36 | G_OBJECT_CLASS (constraints_grid_parent_class)->dispose (object); |
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| 37 | } |
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| 38 | |
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| 39 | static void |
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| 40 | constraints_grid_class_init (ConstraintsGridClass *klass) |
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| 41 | { |
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| 42 | GObjectClass *object_class = G_OBJECT_CLASS (klass); |
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| 43 | |
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| 44 | object_class->dispose = constraints_grid_dispose; |
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| 45 | } |
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| 46 | |
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| 47 | GtkWidget * |
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| 48 | do_constraints_builder (GtkWidget *do_widget) |
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| 49 | { |
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| 50 | static GtkWidget *window; |
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| 51 | |
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| 52 | if (!window) |
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| 53 | { |
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| 54 | GtkBuilder *builder; |
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| 55 | |
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| 56 | g_type_ensure (type: constraints_grid_get_type ()); |
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| 57 | |
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| 58 | builder = gtk_builder_new_from_resource (resource_path: "/constraints_builder/constraints_builder.ui" ); |
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| 59 | |
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| 60 | window = GTK_WIDGET (gtk_builder_get_object (builder, "window1" )); |
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| 61 | gtk_window_set_display (GTK_WINDOW (window), |
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| 62 | display: gtk_widget_get_display (widget: do_widget)); |
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| 63 | g_object_add_weak_pointer (G_OBJECT (window), weak_pointer_location: (gpointer *)&window); |
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| 64 | |
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| 65 | g_object_unref (object: builder); |
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| 66 | } |
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| 67 | |
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| 68 | if (!gtk_widget_get_visible (widget: window)) |
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| 69 | gtk_widget_show (widget: window); |
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| 70 | else |
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| 71 | gtk_window_destroy (GTK_WINDOW (window)); |
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| 72 | |
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| 73 | return window; |
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| 74 | } |
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| 75 | |
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