forked from AuroraMiddleware/gtk
Add a transform test
This reveals some issues with scale handling.
This commit is contained in:
Matthias Clasen
parent
bf454e948d
commit
5be785bff8
@ -115,6 +115,7 @@ gtk_tests = [
|
|||||||
['testwindowdrag'],
|
['testwindowdrag'],
|
||||||
['testinhibitshortcuts'],
|
['testinhibitshortcuts'],
|
||||||
['testtexthistory', ['../gtk/gtktexthistory.c']],
|
['testtexthistory', ['../gtk/gtktexthistory.c']],
|
||||||
|
['testzoom']
|
||||||
]
|
]
|
||||||
|
|
||||||
if os_unix
|
if os_unix
|
||||||
|
|||||||
276
tests/testzoom.c
Normal file
276
tests/testzoom.c
Normal file
@ -0,0 +1,276 @@
|
|||||||
|
#include <gtk/gtk.h>
|
||||||
|
|
||||||
|
typedef struct
|
||||||
|
{
|
||||||
|
GtkWidget parent_instance;
|
||||||
|
GtkWidget *child;
|
||||||
|
float scale;
|
||||||
|
float angle;
|
||||||
|
} GtkZoom;
|
||||||
|
|
||||||
|
typedef struct
|
||||||
|
{
|
||||||
|
GtkWidgetClass parent_class;
|
||||||
|
} GtkZoomClass;
|
||||||
|
|
||||||
|
enum {
|
||||||
|
PROP_0,
|
||||||
|
PROP_CHILD,
|
||||||
|
PROP_SCALE,
|
||||||
|
PROP_ANGLE,
|
||||||
|
NUM_PROPERTIES
|
||||||
|
};
|
||||||
|
|
||||||
|
static GParamSpec *props[NUM_PROPERTIES] = { NULL, };
|
||||||
|
|
||||||
|
GType gtk_zoom_get_type (void);
|
||||||
|
|
||||||
|
G_DEFINE_TYPE (GtkZoom, gtk_zoom, GTK_TYPE_WIDGET)
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_init (GtkZoom *zoom)
|
||||||
|
{
|
||||||
|
zoom->child = NULL;
|
||||||
|
zoom->scale = 1.0;
|
||||||
|
zoom->angle = 0.0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_dispose (GObject *object)
|
||||||
|
{
|
||||||
|
GtkZoom *zoom = (GtkZoom *)object;
|
||||||
|
|
||||||
|
g_clear_pointer (&zoom->child, gtk_widget_unparent);
|
||||||
|
|
||||||
|
G_OBJECT_CLASS (gtk_zoom_parent_class)->dispose (object);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
update_transform (GtkZoom *zoom)
|
||||||
|
{
|
||||||
|
GtkLayoutManager *manager;
|
||||||
|
GtkLayoutChild *child;
|
||||||
|
GskTransform *transform;
|
||||||
|
|
||||||
|
manager = gtk_widget_get_layout_manager (GTK_WIDGET (zoom));
|
||||||
|
child = gtk_layout_manager_get_layout_child (manager, zoom->child);
|
||||||
|
|
||||||
|
transform = NULL;
|
||||||
|
transform = gsk_transform_rotate (transform, zoom->angle);
|
||||||
|
transform = gsk_transform_scale (transform, zoom->scale, zoom->scale);
|
||||||
|
gtk_fixed_layout_child_set_transform (GTK_FIXED_LAYOUT_CHILD (child), transform);
|
||||||
|
gsk_transform_unref (transform);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_set_scale (GtkZoom *zoom,
|
||||||
|
float scale)
|
||||||
|
{
|
||||||
|
|
||||||
|
if (zoom->scale == scale)
|
||||||
|
return;
|
||||||
|
|
||||||
|
zoom->scale = scale;
|
||||||
|
|
||||||
|
update_transform (zoom);
|
||||||
|
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (zoom), props[PROP_SCALE]);
|
||||||
|
|
||||||
|
gtk_widget_queue_resize (GTK_WIDGET (zoom));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_set_angle (GtkZoom *zoom,
|
||||||
|
float angle)
|
||||||
|
{
|
||||||
|
|
||||||
|
if (zoom->angle == angle)
|
||||||
|
return;
|
||||||
|
|
||||||
|
zoom->angle = angle;
|
||||||
|
|
||||||
|
update_transform (zoom);
|
||||||
|
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (zoom), props[PROP_ANGLE]);
|
||||||
|
|
||||||
|
gtk_widget_queue_resize (GTK_WIDGET (zoom));
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_set_child (GtkZoom *zoom,
|
||||||
|
GtkWidget *child)
|
||||||
|
{
|
||||||
|
g_clear_pointer (&zoom->child, gtk_widget_unparent);
|
||||||
|
|
||||||
|
zoom->child = child;
|
||||||
|
|
||||||
|
if (zoom->child)
|
||||||
|
gtk_widget_set_parent (zoom->child, GTK_WIDGET (zoom));
|
||||||
|
|
||||||
|
g_object_notify_by_pspec (G_OBJECT (zoom), props[PROP_CHILD]);
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_set_property (GObject *object,
|
||||||
|
guint prop_id,
|
||||||
|
const GValue *value,
|
||||||
|
GParamSpec *pspec)
|
||||||
|
{
|
||||||
|
GtkZoom *zoom = (GtkZoom *)object;
|
||||||
|
|
||||||
|
switch (prop_id)
|
||||||
|
{
|
||||||
|
case PROP_SCALE:
|
||||||
|
gtk_zoom_set_scale (zoom, g_value_get_float (value));
|
||||||
|
break;
|
||||||
|
|
||||||
|
case PROP_ANGLE:
|
||||||
|
gtk_zoom_set_angle (zoom, g_value_get_float (value));
|
||||||
|
break;
|
||||||
|
|
||||||
|
case PROP_CHILD:
|
||||||
|
gtk_zoom_set_child (zoom, g_value_get_object (value));
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_get_property (GObject *object,
|
||||||
|
guint prop_id,
|
||||||
|
GValue *value,
|
||||||
|
GParamSpec *pspec)
|
||||||
|
{
|
||||||
|
GtkZoom *zoom = (GtkZoom *)object;
|
||||||
|
|
||||||
|
switch (prop_id)
|
||||||
|
{
|
||||||
|
case PROP_SCALE:
|
||||||
|
g_value_set_float (value, zoom->scale);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case PROP_ANGLE:
|
||||||
|
g_value_set_float (value, zoom->angle);
|
||||||
|
break;
|
||||||
|
|
||||||
|
case PROP_CHILD:
|
||||||
|
g_value_set_object (value, zoom->child);
|
||||||
|
break;
|
||||||
|
|
||||||
|
default:
|
||||||
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
static void
|
||||||
|
gtk_zoom_class_init (GtkZoomClass *class)
|
||||||
|
{
|
||||||
|
GObjectClass *object_class = G_OBJECT_CLASS (class);
|
||||||
|
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
|
||||||
|
|
||||||
|
object_class->dispose = gtk_zoom_dispose;
|
||||||
|
object_class->set_property = gtk_zoom_set_property;
|
||||||
|
object_class->get_property = gtk_zoom_get_property;
|
||||||
|
|
||||||
|
props[PROP_SCALE] = g_param_spec_float ("scale", "", "",
|
||||||
|
0.0, 100.0, 1.0,
|
||||||
|
G_PARAM_READWRITE);
|
||||||
|
|
||||||
|
props[PROP_ANGLE] = g_param_spec_float ("angle", "", "",
|
||||||
|
0.0, 360.0, 1.0,
|
||||||
|
G_PARAM_READWRITE);
|
||||||
|
|
||||||
|
props[PROP_CHILD] = g_param_spec_object ("child", "", "",
|
||||||
|
GTK_TYPE_WIDGET,
|
||||||
|
G_PARAM_READWRITE);
|
||||||
|
|
||||||
|
g_object_class_install_properties (object_class, NUM_PROPERTIES, props);
|
||||||
|
|
||||||
|
gtk_widget_class_set_layout_manager_type (widget_class, GTK_TYPE_FIXED_LAYOUT);
|
||||||
|
}
|
||||||
|
|
||||||
|
static GtkWidget *
|
||||||
|
gtk_zoom_new (void)
|
||||||
|
{
|
||||||
|
return g_object_new (gtk_zoom_get_type (), NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
int
|
||||||
|
main (int argc, char *argv[])
|
||||||
|
{
|
||||||
|
GtkWindow *window;
|
||||||
|
GtkWidget *zoom;
|
||||||
|
GtkWidget *box;
|
||||||
|
GtkWidget *grid;
|
||||||
|
GtkWidget *sw;
|
||||||
|
GtkWidget *scale;
|
||||||
|
GtkWidget *angle;
|
||||||
|
GtkWidget *child;
|
||||||
|
GtkAdjustment *adjustment;
|
||||||
|
|
||||||
|
gtk_init ();
|
||||||
|
|
||||||
|
window = GTK_WINDOW (gtk_window_new ());
|
||||||
|
gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
|
||||||
|
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
|
||||||
|
gtk_window_set_child (window, box);
|
||||||
|
|
||||||
|
grid = gtk_grid_new ();
|
||||||
|
gtk_grid_set_column_spacing (GTK_GRID (grid), 10);
|
||||||
|
|
||||||
|
scale = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 1.0, 10.0, 1.0);
|
||||||
|
gtk_widget_set_hexpand (scale, TRUE);
|
||||||
|
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Scale"), 0, 0, 1, 1);
|
||||||
|
gtk_grid_attach (GTK_GRID (grid), scale, 1, 0, 1, 1);
|
||||||
|
|
||||||
|
angle = gtk_scale_new_with_range (GTK_ORIENTATION_HORIZONTAL, 0.0, 360.0, 1.0);
|
||||||
|
gtk_scale_add_mark (GTK_SCALE (angle), 90.0, GTK_POS_BOTTOM, NULL);
|
||||||
|
gtk_scale_add_mark (GTK_SCALE (angle), 180.0, GTK_POS_BOTTOM, NULL);
|
||||||
|
gtk_scale_add_mark (GTK_SCALE (angle), 270.0, GTK_POS_BOTTOM, NULL);
|
||||||
|
gtk_widget_set_hexpand (angle, TRUE);
|
||||||
|
gtk_grid_attach (GTK_GRID (grid), gtk_label_new ("Angle"), 0, 1, 1, 1);
|
||||||
|
gtk_grid_attach (GTK_GRID (grid), angle, 1, 1, 1, 1);
|
||||||
|
gtk_box_append (GTK_BOX (box), grid);
|
||||||
|
|
||||||
|
sw = gtk_scrolled_window_new ();
|
||||||
|
gtk_widget_set_hexpand (sw, TRUE);
|
||||||
|
gtk_widget_set_vexpand (sw, TRUE);
|
||||||
|
gtk_box_append (GTK_BOX (box), sw);
|
||||||
|
|
||||||
|
zoom = gtk_zoom_new ();
|
||||||
|
gtk_widget_set_halign (zoom, GTK_ALIGN_CENTER);
|
||||||
|
gtk_widget_set_valign (zoom, GTK_ALIGN_CENTER);
|
||||||
|
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), zoom);
|
||||||
|
|
||||||
|
adjustment = gtk_range_get_adjustment (GTK_RANGE (scale));
|
||||||
|
g_object_bind_property (adjustment, "value",
|
||||||
|
zoom, "scale",
|
||||||
|
G_BINDING_DEFAULT);
|
||||||
|
|
||||||
|
adjustment = gtk_range_get_adjustment (GTK_RANGE (angle));
|
||||||
|
g_object_bind_property (adjustment, "value",
|
||||||
|
zoom, "angle",
|
||||||
|
G_BINDING_DEFAULT);
|
||||||
|
|
||||||
|
if (argc > 1)
|
||||||
|
{
|
||||||
|
GtkBuilder *builder = gtk_builder_new ();
|
||||||
|
gtk_builder_add_from_file (builder, argv[1], NULL);
|
||||||
|
child = GTK_WIDGET (gtk_builder_get_object (builder, "child"));
|
||||||
|
gtk_zoom_set_child ((GtkZoom *)zoom, child);
|
||||||
|
g_object_unref (builder);
|
||||||
|
}
|
||||||
|
else
|
||||||
|
gtk_zoom_set_child ((GtkZoom *)zoom, gtk_button_new_with_label ("Click me!"));
|
||||||
|
|
||||||
|
gtk_window_present (window);
|
||||||
|
|
||||||
|
while (g_list_model_get_n_items (gtk_window_get_toplevels ()) > 0)
|
||||||
|
g_main_context_iteration (NULL, TRUE);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue
Block a user