forked from AuroraMiddleware/gtk
152 lines
3.7 KiB
C
152 lines
3.7 KiB
C
/*
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* Copyright © 2019 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include "gtknativeprivate.h"
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#include "gtkcssnodeprivate.h"
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#include "gtkwidgetprivate.h"
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#include "gdk/gdk-private.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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/**
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* SECTION:gtknative
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* @Title: GtkNative
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* @Short_description: Interface for widgets having surfaces
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* @See_also: #GtkRoot
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*
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* #GtkNative is the interface implemented by all widgets that can provide
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* a GdkSurface for widgets to render on.
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*
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* The obvious example of a #GtkNative is #GtkWindow.
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*/
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G_DEFINE_INTERFACE (GtkNative, gtk_native, GTK_TYPE_WIDGET)
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static GskRenderer *
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gtk_native_default_get_renderer (GtkNative *self)
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{
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return NULL;
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}
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static void
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gtk_native_default_get_surface_transform (GtkNative *self,
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int *x,
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int *y)
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{
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*x = 0;
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*y = 0;
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}
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static void
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gtk_native_default_check_resize (GtkNative *self)
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{
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}
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static void
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gtk_native_default_init (GtkNativeInterface *iface)
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{
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iface->get_renderer = gtk_native_default_get_renderer;
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iface->get_surface_transform = gtk_native_default_get_surface_transform;
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iface->check_resize = gtk_native_default_check_resize;
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}
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/**
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* gtk_native_get_surface:
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* @self: a #GtkNative
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*
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* Returns the surface of this #GtkNative.
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*
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* Returns: (transfer none): the surface of @self
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*/
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GdkSurface *
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gtk_native_get_surface (GtkNative *self)
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{
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g_return_val_if_fail (GTK_IS_NATIVE (self), NULL);
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return GTK_NATIVE_GET_IFACE (self)->get_surface (self);
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}
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/**
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* gtk_native_get_renderer:
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* @self: a #GtkNative
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*
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* Returns the renderer that is used for this #GtkNative.
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*
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* Returns: (transfer none): the renderer for @self
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*/
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GskRenderer *
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gtk_native_get_renderer (GtkNative *self)
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{
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g_return_val_if_fail (GTK_IS_NATIVE (self), NULL);
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return GTK_NATIVE_GET_IFACE (self)->get_renderer (self);
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}
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void
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gtk_native_get_surface_transform (GtkNative *self,
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int *x,
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int *y)
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{
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g_return_if_fail (GTK_IS_NATIVE (self));
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g_return_if_fail (x != NULL);
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g_return_if_fail (y != NULL);
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return GTK_NATIVE_GET_IFACE (self)->get_surface_transform (self, x, y);
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}
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/**
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* gtk_native_check_resize:
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* @self: a #GtkNative
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*
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* Reposition and resize a #GtkNative.
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*
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* Widgets need to call this function on their attached
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* native widgets when they receive a new size allocation.
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*/
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void
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gtk_native_check_resize (GtkNative *self)
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{
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g_return_if_fail (GTK_IS_NATIVE (self));
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GTK_NATIVE_GET_IFACE (self)->check_resize (self);
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}
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/**
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* gtk_native_get_for_surface:
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* @surface: a #GdkSurface
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*
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* Finds the GtkNative associated with the surface.
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*
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* Returns: (transfer none): the #GtkNative that is associated with @surface
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*/
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GtkWidget *
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gtk_native_get_for_surface (GdkSurface *surface)
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{
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GtkWidget *widget;
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widget = (GtkWidget *)gdk_surface_get_widget (surface);
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if (widget && GTK_IS_NATIVE (widget))
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return widget;
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return NULL;
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}
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