forked from AuroraMiddleware/gtk
5059854a2e
This was done in a weird way where we always call reftest_uninhibit_snapshot()
on paint, and then re-inhibited it if it wasn't inhibited. To make this
work it also started with an extra inhibit.
This is very contorted and based on how this historically worked. This
changes it to just do:
if (inhibit_count > 0)
return;
And keep inhibit_count at its initial zero value unless it is actually
inhibited.
313 lines
8.0 KiB
C
313 lines
8.0 KiB
C
/*
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* Copyright (C) 2011 Red Hat Inc.
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*
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* Author:
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* Benjamin Otte <otte@gnome.org>
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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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library 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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#include "config.h"
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#include "reftest-snapshot.h"
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#include "reftest-module.h"
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#ifdef GDK_WINDOWING_X11
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#include <gdk/x11/gdkx.h>
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#include <cairo-xlib.h>
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#endif
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#include <string.h>
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#define REFTEST_TYPE_SCOPE (reftest_scope_get_type ())
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G_DECLARE_FINAL_TYPE (ReftestScope, reftest_scope, REFTEST, SCOPE, GtkBuilderCScope)
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static GtkBuilderScopeInterface *parent_scope_iface;
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struct _ReftestScope
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{
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GtkBuilderCScope parent_instance;
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char *directory;
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};
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static GClosure *
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reftest_scope_create_closure (GtkBuilderScope *scope,
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GtkBuilder *builder,
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const char *function_name,
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GtkBuilderClosureFlags flags,
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GObject *object,
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GError **error)
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{
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ReftestScope *self = REFTEST_SCOPE (scope);
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ReftestModule *module;
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GCallback func;
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GClosure *closure;
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char **split;
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split = g_strsplit (function_name, ":", -1);
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switch (g_strv_length (split))
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{
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case 1:
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closure = parent_scope_iface->create_closure (scope, builder, split[0], flags, object, error);
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break;
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case 2:
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module = reftest_module_new (self->directory, split[0]);
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if (module == NULL)
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{
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g_set_error (error,
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GTK_BUILDER_ERROR,
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GTK_BUILDER_ERROR_INVALID_FUNCTION,
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"Could not load module '%s' from '%s' when looking up '%s': %s", split[0], self->directory, function_name, g_module_error ());
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return NULL;
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}
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func = reftest_module_lookup (module, split[1]);
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if (!func)
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{
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g_set_error (error,
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GTK_BUILDER_ERROR,
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GTK_BUILDER_ERROR_INVALID_FUNCTION,
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"failed to lookup function for name '%s' in module '%s'", split[1], split[0]);
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return NULL;
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}
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if (object)
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{
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if (flags & GTK_BUILDER_CLOSURE_SWAPPED)
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closure = g_cclosure_new_object_swap (func, object);
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else
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closure = g_cclosure_new_object (func, object);
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}
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else
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{
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if (flags & GTK_BUILDER_CLOSURE_SWAPPED)
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closure = g_cclosure_new_swap (func, NULL, NULL);
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else
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closure = g_cclosure_new (func, NULL, NULL);
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}
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if (module)
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g_closure_add_finalize_notifier (closure, module, (GClosureNotify) reftest_module_unref);
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break;
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default:
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g_set_error (error,
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GTK_BUILDER_ERROR,
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GTK_BUILDER_ERROR_INVALID_FUNCTION,
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"Could not find function named '%s'", function_name);
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return NULL;
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}
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g_strfreev (split);
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return closure;
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}
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static void
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reftest_scope_scope_init (GtkBuilderScopeInterface *iface)
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{
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iface->create_closure = reftest_scope_create_closure;
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parent_scope_iface = g_type_interface_peek_parent (iface);
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}
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G_DEFINE_TYPE_WITH_CODE (ReftestScope, reftest_scope, GTK_TYPE_BUILDER_CSCOPE,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDER_SCOPE,
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reftest_scope_scope_init))
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static void
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reftest_scope_finalize (GObject *object)
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{
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ReftestScope *self = REFTEST_SCOPE (object);
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g_free (self->directory);
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G_OBJECT_CLASS (reftest_scope_parent_class)->finalize (object);
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}
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static void
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reftest_scope_class_init (ReftestScopeClass *scope_class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (scope_class);
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object_class->finalize = reftest_scope_finalize;
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}
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static void
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reftest_scope_init (ReftestScope *self)
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{
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}
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static GtkBuilderScope *
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reftest_scope_new (const char *directory)
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{
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ReftestScope *result;
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g_return_val_if_fail (directory != NULL, NULL);
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result = g_object_new (REFTEST_TYPE_SCOPE, NULL);
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result->directory = g_strdup (directory);
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return GTK_BUILDER_SCOPE (result);
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}
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static GtkWidget *
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builder_get_toplevel (GtkBuilder *builder)
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{
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GSList *list, *walk;
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GtkWidget *window = NULL;
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list = gtk_builder_get_objects (builder);
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for (walk = list; walk; walk = walk->next)
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{
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if (GTK_IS_WINDOW (walk->data) &&
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gtk_widget_get_parent (walk->data) == NULL)
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{
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window = walk->data;
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break;
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}
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}
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g_slist_free (list);
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return window;
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}
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static gboolean
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quit_when_idle (gpointer loop)
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{
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g_main_loop_quit (loop);
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return G_SOURCE_REMOVE;
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}
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static gint inhibit_count;
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static GMainLoop *loop;
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G_MODULE_EXPORT void
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reftest_inhibit_snapshot (void)
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{
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inhibit_count++;
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}
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G_MODULE_EXPORT void
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reftest_uninhibit_snapshot (void)
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{
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g_assert (inhibit_count > 0);
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inhibit_count--;
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}
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static void
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draw_paintable (GdkPaintable *paintable,
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gpointer out_surface)
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{
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GtkSnapshot *snapshot;
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GskRenderNode *node;
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cairo_surface_t *surface;
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cairo_t *cr;
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if (inhibit_count > 0)
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return;
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snapshot = gtk_snapshot_new ();
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gdk_paintable_snapshot (paintable,
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snapshot,
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gdk_paintable_get_intrinsic_width (paintable),
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gdk_paintable_get_intrinsic_height (paintable));
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node = gtk_snapshot_free_to_node (snapshot);
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/* If the window literally draws nothing, we assume it hasn't been mapped yet and as such
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* the invalidations were only side effects of resizes.
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*/
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if (node == NULL)
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return;
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
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gdk_paintable_get_intrinsic_width (paintable),
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gdk_paintable_get_intrinsic_height (paintable));
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cr = cairo_create (surface);
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gsk_render_node_draw (node, cr);
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cairo_destroy (cr);
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gsk_render_node_unref (node);
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g_signal_handlers_disconnect_by_func (paintable, draw_paintable, out_surface);
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*(cairo_surface_t **) out_surface = surface;
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g_idle_add (quit_when_idle, loop);
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}
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static cairo_surface_t *
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snapshot_widget (GtkWidget *widget)
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{
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GdkPaintable *paintable;
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cairo_surface_t *surface;
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g_assert (gtk_widget_get_realized (widget));
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loop = g_main_loop_new (NULL, FALSE);
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/* We wait until the widget is drawn for the first time.
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*
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* We also use an inhibit mechanism, to give module functions a chance
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* to delay the snapshot.
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*/
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paintable = gtk_widget_paintable_new (widget);
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g_signal_connect (paintable, "invalidate-contents", G_CALLBACK (draw_paintable), &surface);
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g_main_loop_run (loop);
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g_main_loop_unref (loop);
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g_object_unref (paintable);
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gtk_window_destroy (GTK_WINDOW (widget));
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return surface;
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}
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cairo_surface_t *
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reftest_snapshot_ui_file (const char *ui_file)
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{
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GtkWidget *window;
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GtkBuilder *builder;
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GtkBuilderScope *scope;
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GError *error = NULL;
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char *directory;
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if (g_getenv ("REFTEST_MODULE_DIR"))
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directory = g_strdup (g_getenv ("REFTEST_MODULE_DIR"));
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else
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directory = g_path_get_dirname (ui_file);
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scope = reftest_scope_new (directory);
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g_free (directory);
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builder = gtk_builder_new ();
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gtk_builder_set_scope (builder, scope);
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g_object_unref (scope);
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gtk_builder_add_from_file (builder, ui_file, &error);
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g_assert_no_error (error);
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window = builder_get_toplevel (builder);
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g_object_unref (builder);
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g_assert (window);
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gtk_widget_show (window);
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return snapshot_widget (window);
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}
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