Commit 87bca839 authored by Timm Bäder's avatar Timm Bäder 👎

Add shrinking test case

parent 64558335
......@@ -131,6 +131,7 @@ gtk_tests = [
if os_unix
typedef struct _GtkShrink GtkShrink;
typedef struct _GtkShrinkClass GtkShrinkClass;
#define GTK_TYPE_SHRINK (gtk_shrink_get_type ())
struct _GtkShrink
GtkWidget parent_instance;
GtkWidget *child;
struct _GtkShrinkClass
GtkWidgetClass parent_class;
GType gtk_shrink_get_type (void) G_GNUC_CONST;
G_DEFINE_TYPE(GtkShrink, gtk_shrink, GTK_TYPE_WIDGET);
static void
gtk_shrink_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
GtkShrink *self = (GtkShrink *)widget;
*minimum = 0;
gtk_widget_measure (self->child, orientation, for_size, NULL, natural, NULL, NULL);
static void
gtk_shrink_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
GtkShrink *self = (GtkShrink *)widget;
int child_width;
int child_height;
float scale_x;
float scale_y;
graphene_matrix_t transform;
gtk_widget_measure (self->child, GTK_ORIENTATION_HORIZONTAL, -1, &child_width, NULL, NULL, NULL);
gtk_widget_measure (self->child, GTK_ORIENTATION_VERTICAL, -1, &child_height, NULL, NULL, NULL);
if (width < child_width)
scale_x = (float)width / (float)child_width;
scale_x = 1.0f;
if (height < child_height)
scale_y = (float)height / (float)child_height;
scale_y = 1.0f;
graphene_matrix_init_scale (&transform, scale_x, scale_y, 1.0f);
gtk_widget_size_allocate_transformed (self->child,
MAX (width, child_width),
MAX (height, child_height),
-1, &transform);
static void
gtk_shrink_finalize (GObject *object)
GtkShrink *self = (GtkShrink *)object;
gtk_widget_unparent (self->child);
G_OBJECT_CLASS (gtk_shrink_parent_class)->finalize (object);
static void
gtk_shrink_init (GtkShrink *self)
gtk_widget_set_has_surface (GTK_WIDGET (self), FALSE);
static void
gtk_shrink_class_init (GtkShrinkClass *klass)
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->finalize = gtk_shrink_finalize;
widget_class->measure = gtk_shrink_measure;
widget_class->size_allocate = gtk_shrink_size_allocate;
static GtkWidget *
gtk_shrink_new (GtkWidget *child)
GtkShrink *s = GTK_SHRINK (g_object_new (GTK_TYPE_SHRINK, NULL));
s->child = child;
gtk_widget_set_parent (child, GTK_WIDGET (s));
return GTK_WIDGET (s);
/* Stub definition of MyTextView which is used in the
* widget-factory.ui file. We just need this so the
* test keeps working
typedef struct
GtkTextView tv;
} MyTextView;
typedef GtkTextViewClass MyTextViewClass;
G_DEFINE_TYPE (MyTextView, my_text_view, GTK_TYPE_TEXT_VIEW)
static void
my_text_view_init (MyTextView *tv) {}
static void
my_text_view_class_init (MyTextViewClass *tv_class) {}
/* Copied from tests/scrolling-performance.c */
GtkWidget *
create_widget_factory_content (void)
GError *error = NULL;
GtkBuilder *builder;
GtkWidget *result;
g_type_ensure (my_text_view_get_type ());
builder = gtk_builder_new ();
gtk_builder_add_from_file (builder,
if (error != NULL)
g_error ("Failed to create widgets: %s", error->message);
result = GTK_WIDGET (gtk_builder_get_object (builder, "box1"));
g_object_ref (result);
gtk_container_remove (GTK_CONTAINER (gtk_widget_get_parent (result)),
g_object_unref (builder);
return result;
main (int argc, char **argv)
GtkWidget *window;
GtkWidget *shrink;
GtkWidget *to_shrink;
gtk_init ();
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
to_shrink = create_widget_factory_content ();
g_object_set (G_OBJECT (to_shrink), "margin", 0, NULL);
shrink = gtk_shrink_new (to_shrink);
gtk_container_add (GTK_CONTAINER (window), shrink);
gtk_widget_show (window);
gtk_main ();
return 0;
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