--- /dev/null
+/*
+ * Copyright © 2019 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Matthias Clasen <mclasen@redhat.com>
+ */
+
+#include "config.h"
+
+#include "gtknativeprivate.h"
+#include "gtkcssnodeprivate.h"
+#include "gtkwidgetprivate.h"
+#include "gdk/gdk-private.h"
+#include "gtkprivate.h"
+#include "gtkintl.h"
+
+/**
+ * SECTION:gtknative
+ * @Title: GtkNative
+ * @Short_description: Interface for widgets having surfaces
+ * @See_also: #GtkRoot
+ *
+ * #GtkNative is the interface implemented by all widgets that can provide
+ * a GdkSurface for widgets to render on.
+ *
+ * The obvious example of a #GtkNative is #GtkWindow.
+ */
+
+G_DEFINE_INTERFACE (GtkNative, gtk_native, GTK_TYPE_WIDGET)
+
+static GskRenderer *
+gtk_native_default_get_renderer (GtkNative *self)
+{
+ return NULL;
+}
+
+static void
+gtk_native_default_get_surface_transform (GtkNative *self,
+ int *x,
+ int *y)
+{
+ *x = 0;
+ *y = 0;
+}
+
+static void
+gtk_native_default_check_resize (GtkNative *self)
+{
+}
+
+static void
+gtk_native_default_init (GtkNativeInterface *iface)
+{
+ iface->get_renderer = gtk_native_default_get_renderer;
+ iface->get_surface_transform = gtk_native_default_get_surface_transform;
+ iface->check_resize = gtk_native_default_check_resize;
+}
+
+/**
+ * gtk_native_get_surface:
+ * @self: a #GtkNative
+ *
+ * Returns the surface of this #GtkNative.
+ *
+ * Returns: the surface of @self
+ */
+GdkSurface *
+gtk_native_get_surface (GtkNative *self)
+{
+ g_return_val_if_fail (GTK_IS_NATIVE (self), NULL);
+
+ return GTK_NATIVE_GET_IFACE (self)->get_surface (self);
+}
+
+/**
+ * gtk_native_get_renderer:
+ * @self: a #GtkNative
+ *
+ * Returns the renderer that is used for this #GtkNative.
+ *
+ * Returns: the renderer for @self
+ */
+GskRenderer *
+gtk_native_get_renderer (GtkNative *self)
+{
+ g_return_val_if_fail (GTK_IS_NATIVE (self), NULL);
+
+ return GTK_NATIVE_GET_IFACE (self)->get_renderer (self);
+}
+
+void
+gtk_native_get_surface_transform (GtkNative *self,
+ int *x,
+ int *y)
+{
+ g_return_if_fail (GTK_IS_NATIVE (self));
+ g_return_if_fail (x != 0);
+ g_return_if_fail (y != 0);
+
+ return GTK_NATIVE_GET_IFACE (self)->get_surface_transform (self, x, y);
+}
+
+void
+gtk_native_check_resize (GtkNative *self)
+{
+ g_return_if_fail (GTK_IS_NATIVE (self));
+
+ GTK_NATIVE_GET_IFACE (self)->check_resize (self);
+}
+
+/**
+ * gtk_native_get_for_surface:
+ * @surface: a #GdkSurface
+ *
+ * Finds the GtkNative associated with the surface.
+ *
+ * Returns: (transfer none): the #GtkNative that is associated with @surface
+ */
+GtkWidget *
+gtk_native_get_for_surface (GdkSurface *surface)
+{
+ GtkWidget *widget;
+
+ widget = (GtkWidget *)gdk_surface_get_widget (surface);
+
+ if (widget && GTK_IS_NATIVE (widget))
+ return widget;
+
+ return NULL;
+}
--- /dev/null
+/*
+ * Copyright © 2019 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Authors: Matthias Clasen <mclasen@redhat.com>
+ */
+
+#ifndef __GTK_NATIVE_H__
+#define __GTK_NATIVE_H__
+
+#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk.h> can be included directly."
+#endif
+
+#include <gdk/gdk.h>
+#include <gtk/gtkwidget.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_NATIVE (gtk_native_get_type ())
+
+GDK_AVAILABLE_IN_ALL
+G_DECLARE_INTERFACE (GtkNative, gtk_native, GTK, NATIVE, GtkWidget)
+
+/**
+ * GtkNativeIface:
+ *
+ * The list of functions that must be implemented for the #GtkNative interface.
+ */
+struct _GtkNativeInterface
+{
+ /*< private >*/
+ GTypeInterface g_iface;
+
+ /*< public >*/
+ GdkSurface * (* get_surface) (GtkNative *self);
+ GskRenderer * (* get_renderer) (GtkNative *self);
+
+ void (* get_surface_transform) (GtkNative *self,
+ int *x,
+ int *y);
+
+ void (* check_resize) (GtkNative *self);
+};
+
+GDK_AVAILABLE_IN_ALL
+GtkWidget * gtk_native_get_for_surface (GdkSurface *surface);
+
+GDK_AVAILABLE_IN_ALL
+void gtk_native_check_resize (GtkNative *self);
+
+GDK_AVAILABLE_IN_ALL
+GdkSurface *gtk_native_get_surface (GtkNative *self);
+
+GDK_AVAILABLE_IN_ALL
+GskRenderer *gtk_native_get_renderer (GtkNative *self);
+
+G_END_DECLS
+
+#endif /* __GTK_NATIVE_H__ */
projects / gtk4.git / commitdiff