Adding upstream version 2.10.36.upstream/2.10.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1079 insertions, 0 deletions

diff --git a/app/widgets/gimpsessioninfo.c b/app/widgets/gimpsessioninfo.c
new file mode 100644
index 0000000..23fb579
--- /dev/null
+++ b/app/widgets/gimpsessioninfo.c
@@ -0,0 +1,1079 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpsessioninfo.c
+ * Copyright (C) 2001-2008 Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpconfig/gimpconfig.h"
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "widgets-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "widgets/gimpdockcontainer.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontext.h"
+
+#include "gimpdialogfactory.h"
+#include "gimpdock.h"
+#include "gimpdockwindow.h"
+#include "gimpsessioninfo.h"
+#include "gimpsessioninfo-aux.h"
+#include "gimpsessioninfo-book.h"
+#include "gimpsessioninfo-dock.h"
+#include "gimpsessioninfo-private.h"
+#include "gimpsessionmanaged.h"
+
+#include "gimp-log.h"
+
+
+enum
+{
+  SESSION_INFO_FACTORY_ENTRY,
+  SESSION_INFO_POSITION,
+  SESSION_INFO_SIZE,
+  SESSION_INFO_MONITOR,
+  SESSION_INFO_OPEN,
+  SESSION_INFO_AUX,
+  SESSION_INFO_DOCK,
+  SESSION_INFO_GIMP_DOCK,
+  SESSION_INFO_GIMP_TOOLBOX
+};
+
+#define DEFAULT_SCREEN  -1
+#define DEFAULT_MONITOR -1
+
+
+typedef struct
+{
+  GimpSessionInfo   *info;
+  GimpDialogFactory *factory;
+  GdkScreen         *screen;
+  gint               monitor;
+  GtkWidget         *dialog;
+} GimpRestoreDocksData;
+
+
+static void      gimp_session_info_config_iface_init  (GimpConfigInterface  *iface);
+static void      gimp_session_info_finalize           (GObject              *object);
+static gint64    gimp_session_info_get_memsize        (GimpObject           *object,
+                                                       gint64               *gui_size);
+static gboolean  gimp_session_info_serialize          (GimpConfig           *config,
+                                                       GimpConfigWriter     *writer,
+                                                       gpointer              data);
+static gboolean  gimp_session_info_deserialize        (GimpConfig           *config,
+                                                       GScanner             *scanner,
+                                                       gint                  nest_level,
+                                                       gpointer              data);
+static gboolean  gimp_session_info_is_for_dock_window (GimpSessionInfo      *info);
+static void      gimp_session_info_dialog_show        (GtkWidget            *widget,
+                                                       GimpSessionInfo      *info);
+static gboolean  gimp_session_info_restore_docks      (GimpRestoreDocksData *data);
+
+
+G_DEFINE_TYPE_WITH_CODE (GimpSessionInfo, gimp_session_info, GIMP_TYPE_OBJECT,
+                         G_ADD_PRIVATE (GimpSessionInfo)
+                         G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG,
+                                                gimp_session_info_config_iface_init))
+
+#define parent_class gimp_session_info_parent_class
+
+
+static void
+gimp_session_info_class_init (GimpSessionInfoClass *klass)
+{
+  GObjectClass    *object_class      = G_OBJECT_CLASS (klass);
+  GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
+
+  object_class->finalize         = gimp_session_info_finalize;
+
+  gimp_object_class->get_memsize = gimp_session_info_get_memsize;
+}
+
+static void
+gimp_session_info_init (GimpSessionInfo *info)
+{
+  info->p = gimp_session_info_get_instance_private (info);
+
+  info->p->monitor = DEFAULT_MONITOR;
+  info->p->screen  = DEFAULT_SCREEN;
+}
+
+static void
+gimp_session_info_config_iface_init (GimpConfigInterface *iface)
+{
+  iface->serialize   = gimp_session_info_serialize;
+  iface->deserialize = gimp_session_info_deserialize;
+}
+
+static void
+gimp_session_info_finalize (GObject *object)
+{
+  GimpSessionInfo *info = GIMP_SESSION_INFO (object);
+
+  gimp_session_info_clear_info (info);
+
+  gimp_session_info_set_widget (info, NULL);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static gint64
+gimp_session_info_get_memsize (GimpObject *object,
+                               gint64     *gui_size)
+{
+#if 0
+  GimpSessionInfo *info    = GIMP_SESSION_INFO (object);
+#endif
+  gint64           memsize = 0;
+
+  return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+                                                                  gui_size);
+}
+
+static gboolean
+gimp_session_info_serialize (GimpConfig       *config,
+                             GimpConfigWriter *writer,
+                             gpointer          data)
+{
+  GimpSessionInfo *info = GIMP_SESSION_INFO (config);
+  GList           *iter = NULL;
+  gint             x;
+  gint             y;
+  gint             width;
+  gint             height;
+
+  if (info->p->factory_entry && info->p->factory_entry->identifier)
+    {
+      gimp_config_writer_open (writer, "factory-entry");
+      gimp_config_writer_string (writer, info->p->factory_entry->identifier);
+      gimp_config_writer_close (writer);
+    }
+
+  x      = gimp_session_info_apply_position_accuracy (info->p->x);
+  y      = gimp_session_info_apply_position_accuracy (info->p->y);
+  width  = gimp_session_info_apply_position_accuracy (info->p->width);
+  height = gimp_session_info_apply_position_accuracy (info->p->height);
+
+  gimp_config_writer_open (writer, "position");
+  gimp_config_writer_printf (writer, "%d %d", x, y);
+  gimp_config_writer_close (writer);
+
+  if (info->p->width > 0 && info->p->height > 0)
+    {
+      gimp_config_writer_open (writer, "size");
+      gimp_config_writer_printf (writer, "%d %d", width, height);
+      gimp_config_writer_close (writer);
+    }
+
+  if (info->p->monitor != DEFAULT_MONITOR)
+    {
+      gimp_config_writer_open (writer, "monitor");
+      gimp_config_writer_printf (writer, "%d", info->p->monitor);
+      gimp_config_writer_close (writer);
+    }
+
+  if (info->p->open)
+    {
+      gimp_config_writer_open (writer, "open-on-exit");
+
+      if (info->p->screen != DEFAULT_SCREEN)
+        gimp_config_writer_printf (writer, "%d", info->p->screen);
+
+      gimp_config_writer_close (writer);
+    }
+
+  if (info->p->aux_info)
+    gimp_session_info_aux_serialize (writer, info->p->aux_info);
+
+  for (iter = info->p->docks; iter; iter = g_list_next (iter))
+    gimp_session_info_dock_serialize (writer, iter->data);
+
+  return TRUE;
+}
+
+/*
+ * This function is just like gimp_scanner_parse_int(), but it is allows
+ * to detect the special value '-0'. This is used as in X geometry strings.
+ */
+static gboolean
+gimp_session_info_parse_offset (GScanner *scanner,
+                                gint     *dest,
+                                gboolean *negative)
+{
+  if (g_scanner_peek_next_token (scanner) == '-')
+    {
+      *negative = TRUE;
+      g_scanner_get_next_token (scanner);
+    }
+  else
+    {
+      *negative = FALSE;
+    }
+
+  if (g_scanner_peek_next_token (scanner) != G_TOKEN_INT)
+    return FALSE;
+
+  g_scanner_get_next_token (scanner);
+
+  if (*negative)
+    *dest = -scanner->value.v_int64;
+  else
+    *dest = scanner->value.v_int64;
+
+  return TRUE;
+}
+
+static gboolean
+gimp_session_info_deserialize (GimpConfig *config,
+                               GScanner   *scanner,
+                               gint        nest_level,
+                               gpointer    data)
+{
+  GimpSessionInfo *info = GIMP_SESSION_INFO (config);
+  GTokenType       token;
+  guint            scope_id;
+  guint            old_scope_id;
+
+  scope_id = g_type_qname (G_TYPE_FROM_INSTANCE (config));
+  old_scope_id = g_scanner_set_scope (scanner, scope_id);
+
+  g_scanner_scope_add_symbol (scanner, scope_id, "factory-entry",
+                              GINT_TO_POINTER (SESSION_INFO_FACTORY_ENTRY));
+  g_scanner_scope_add_symbol (scanner, scope_id, "position",
+                              GINT_TO_POINTER (SESSION_INFO_POSITION));
+  g_scanner_scope_add_symbol (scanner, scope_id, "size",
+                              GINT_TO_POINTER (SESSION_INFO_SIZE));
+  g_scanner_scope_add_symbol (scanner, scope_id, "monitor",
+                              GINT_TO_POINTER (SESSION_INFO_MONITOR));
+  g_scanner_scope_add_symbol (scanner, scope_id, "open-on-exit",
+                              GINT_TO_POINTER (SESSION_INFO_OPEN));
+  g_scanner_scope_add_symbol (scanner, scope_id, "aux-info",
+                              GINT_TO_POINTER (SESSION_INFO_AUX));
+  g_scanner_scope_add_symbol (scanner, scope_id, "gimp-dock",
+                              GINT_TO_POINTER (SESSION_INFO_GIMP_DOCK));
+  g_scanner_scope_add_symbol (scanner, scope_id, "gimp-toolbox",
+                              GINT_TO_POINTER (SESSION_INFO_GIMP_TOOLBOX));
+
+  /* For sessionrc files from version <= GIMP 2.6 */
+  g_scanner_scope_add_symbol (scanner, scope_id, "dock",
+                              GINT_TO_POINTER (SESSION_INFO_DOCK));
+
+  token = G_TOKEN_LEFT_PAREN;
+
+  while (g_scanner_peek_next_token (scanner) == token)
+    {
+      token = g_scanner_get_next_token (scanner);
+
+      switch (token)
+        {
+        case G_TOKEN_LEFT_PAREN:
+          token = G_TOKEN_SYMBOL;
+          break;
+
+        case G_TOKEN_SYMBOL:
+          switch (GPOINTER_TO_INT (scanner->value.v_symbol))
+            {
+            case SESSION_INFO_FACTORY_ENTRY:
+              {
+                gchar                  *identifier = NULL;
+                GimpDialogFactoryEntry *entry      = NULL;
+
+                token = G_TOKEN_STRING;
+                if (! gimp_scanner_parse_string (scanner, &identifier))
+                  goto error;
+
+                entry = gimp_dialog_factory_find_entry (gimp_dialog_factory_get_singleton (),
+                                                        identifier);
+                if (! entry)
+                  goto error;
+
+                gimp_session_info_set_factory_entry (info, entry);
+
+                g_free (identifier);
+              }
+              break;
+
+            case SESSION_INFO_POSITION:
+              token = G_TOKEN_INT;
+              if (! gimp_session_info_parse_offset (scanner,
+                                                    &info->p->x,
+                                                    &info->p->right_align))
+                goto error;
+              if (! gimp_session_info_parse_offset (scanner,
+                                                    &info->p->y,
+                                                    &info->p->bottom_align))
+                goto error;
+              break;
+
+            case SESSION_INFO_SIZE:
+              token = G_TOKEN_INT;
+              if (! gimp_scanner_parse_int (scanner, &info->p->width))
+                goto error;
+              if (! gimp_scanner_parse_int (scanner, &info->p->height))
+                goto error;
+              break;
+
+            case SESSION_INFO_MONITOR:
+              token = G_TOKEN_INT;
+              if (! gimp_scanner_parse_int (scanner, &info->p->monitor))
+                goto error;
+              break;
+
+            case SESSION_INFO_OPEN:
+              info->p->open = TRUE;
+
+              /*  the screen number is optional  */
+              if (g_scanner_peek_next_token (scanner) == G_TOKEN_RIGHT_PAREN)
+                break;
+
+              token = G_TOKEN_INT;
+              if (! gimp_scanner_parse_int (scanner, &info->p->screen))
+                goto error;
+              break;
+
+            case SESSION_INFO_AUX:
+              token = gimp_session_info_aux_deserialize (scanner,
+                                                         &info->p->aux_info);
+              if (token != G_TOKEN_LEFT_PAREN)
+                goto error;
+              break;
+
+            case SESSION_INFO_GIMP_TOOLBOX:
+            case SESSION_INFO_GIMP_DOCK:
+            case SESSION_INFO_DOCK:
+              {
+                GimpSessionInfoDock *dock_info  = NULL;
+                const gchar         *dock_type = NULL;
+
+                /* Handle old sessionrc:s from versions <= GIMP 2.6 */
+                if (GPOINTER_TO_INT (scanner->value.v_symbol) == SESSION_INFO_DOCK &&
+                    info->p->factory_entry &&
+                    info->p->factory_entry->identifier &&
+                    strcmp ("gimp-toolbox-window",
+                            info->p->factory_entry->identifier) == 0)
+                  {
+                    dock_type = "gimp-toolbox";
+                  }
+                else
+                  {
+                    dock_type = ((GPOINTER_TO_INT (scanner->value.v_symbol) ==
+                                  SESSION_INFO_GIMP_TOOLBOX) ?
+                                 "gimp-toolbox" :
+                                 "gimp-dock");
+                  }
+
+                g_scanner_set_scope (scanner, scope_id + 1);
+                token = gimp_session_info_dock_deserialize (scanner, scope_id + 1,
+                                                            &dock_info,
+                                                            dock_type);
+
+                if (token == G_TOKEN_LEFT_PAREN)
+                  {
+                    g_scanner_set_scope (scanner, scope_id);
+                    info->p->docks = g_list_append (info->p->docks, dock_info);
+                  }
+                else
+                  goto error;
+              }
+              break;
+
+            default:
+              break;
+            }
+          token = G_TOKEN_RIGHT_PAREN;
+          break;
+
+        case G_TOKEN_RIGHT_PAREN:
+          token = G_TOKEN_LEFT_PAREN;
+          break;
+
+        default:
+          break;
+        }
+    }
+
+ error:
+
+  /* If we don't have docks, assume it is a toolbox dock window from a
+   * sessionrc file from GIMP <= 2.6 and add a toolbox dock manually
+   */
+  if (! info->p->docks &&
+      info->p->factory_entry &&
+      strcmp ("gimp-toolbox-window",
+              info->p->factory_entry->identifier) == 0)
+    {
+      info->p->docks =
+        g_list_append (info->p->docks,
+                       gimp_session_info_dock_new ("gimp-toolbox"));
+    }
+
+  g_scanner_scope_remove_symbol (scanner, scope_id, "factory-entry");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "position");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "size");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "open-on-exit");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "aux-info");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "gimp-dock");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "gimp-toolbox");
+  g_scanner_scope_remove_symbol (scanner, scope_id, "dock");
+
+  g_scanner_set_scope (scanner, old_scope_id);
+
+  return gimp_config_deserialize_return (scanner, token, nest_level);
+}
+
+/**
+ * gimp_session_info_is_for_dock_window:
+ * @info:
+ *
+ * Helper function to determine if the session info is for a dock. It
+ * uses the dialog factory entry state and the associated widget state
+ * if any to determine that.
+ *
+ * Returns: %TRUE if session info is for a dock, %FALSE otherwise.
+ **/
+static gboolean
+gimp_session_info_is_for_dock_window (GimpSessionInfo *info)
+{
+  gboolean entry_state_for_dock  =  info->p->factory_entry == NULL;
+  gboolean widget_state_for_dock = (info->p->widget == NULL ||
+                                    GIMP_IS_DOCK_WINDOW (info->p->widget));
+
+  return entry_state_for_dock && widget_state_for_dock;
+}
+
+static void
+gimp_session_info_dialog_show (GtkWidget       *widget,
+                               GimpSessionInfo *info)
+{
+  gtk_window_move (GTK_WINDOW (widget),
+                   info->p->x, info->p->y);
+}
+
+static gboolean
+gimp_session_info_restore_docks (GimpRestoreDocksData *data)
+{
+  GimpSessionInfo     *info    = data->info;
+  GimpDialogFactory   *factory = data->factory;
+  GdkScreen           *screen  = data->screen;
+  gint                 monitor = data->monitor;
+  GtkWidget           *dialog  = data->dialog;
+  GList               *iter;
+
+  if (GIMP_IS_DOCK_CONTAINER (dialog))
+    {
+      /* We expect expect there to always be docks. In sessionrc files
+       * from <= 2.6 not all dock window entries had dock entries, but we
+       * take care of that during sessionrc parsing
+       */
+      for (iter = info->p->docks; iter; iter = g_list_next (iter))
+        {
+          GimpSessionInfoDock *dock_info = (GimpSessionInfoDock *) iter->data;
+          GtkWidget           *dock;
+
+          dock =
+            GTK_WIDGET (gimp_session_info_dock_restore (dock_info,
+                                                        factory,
+                                                        screen,
+                                                        monitor,
+                                                        GIMP_DOCK_CONTAINER (dialog)));
+
+          if (dock && dock_info->position != 0)
+            {
+              GtkWidget *parent = gtk_widget_get_parent (dock);
+
+              if (GTK_IS_PANED (parent))
+                {
+                  GtkPaned *paned = GTK_PANED (parent);
+
+                  if (dock == gtk_paned_get_child2 (paned))
+                    gtk_paned_set_position (paned, dock_info->position);
+                }
+            }
+        }
+    }
+
+  gimp_session_info_clear_info (info);
+
+  g_object_unref (dialog);
+  g_object_unref (screen);
+  g_object_unref (factory);
+  g_object_unref (info);
+
+  g_slice_free (GimpRestoreDocksData, data);
+
+  return FALSE;
+}
+
+
+/*  public functions  */
+
+GimpSessionInfo *
+gimp_session_info_new (void)
+{
+  return g_object_new (GIMP_TYPE_SESSION_INFO, NULL);
+}
+
+void
+gimp_session_info_restore (GimpSessionInfo   *info,
+                           GimpDialogFactory *factory,
+                           GdkScreen         *screen,
+                           gint               monitor)
+{
+  GtkWidget            *dialog = NULL;
+  GimpRestoreDocksData *data;
+
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+  g_return_if_fail (GIMP_IS_DIALOG_FACTORY (factory));
+  g_return_if_fail (GDK_IS_SCREEN (screen));
+
+  g_object_ref (info);
+
+  if (info->p->screen != DEFAULT_SCREEN)
+    {
+      GdkDisplay *display;
+      GdkScreen  *info_screen;
+
+      display = gdk_display_get_default ();
+      info_screen = gdk_display_get_screen (display, info->p->screen);
+
+      if (info_screen)
+        screen = info_screen;
+    }
+
+  info->p->open   = FALSE;
+  info->p->screen = DEFAULT_SCREEN;
+
+  if (info->p->factory_entry &&
+      info->p->factory_entry->restore_func)
+    {
+      dialog = info->p->factory_entry->restore_func (factory,
+                                                     screen,
+                                                     monitor,
+                                                     info);
+    }
+  else
+    g_printerr ("EEEEK\n");
+
+  if (GIMP_IS_SESSION_MANAGED (dialog) && info->p->aux_info)
+    gimp_session_managed_set_aux_info (GIMP_SESSION_MANAGED (dialog),
+                                       info->p->aux_info);
+
+  /* In single-window mode, gimp_session_managed_set_aux_info()
+   * will set the size of the dock areas at the sides. If we don't
+   * wait for those areas to get their size-allocation, we can't
+   * properly restore the docks inside them, so do that in an idle
+   * callback.
+   */
+
+  /* Objects are unreffed again in the callback */
+  data = g_slice_new0 (GimpRestoreDocksData);
+  data->info    = g_object_ref (info);
+  data->factory = g_object_ref (factory);
+  data->screen  = g_object_ref (screen);
+  data->monitor = monitor;
+  data->dialog  = dialog ? g_object_ref (dialog) : NULL;
+
+  g_idle_add ((GSourceFunc) gimp_session_info_restore_docks, data);
+
+  g_object_unref (info);
+}
+
+/**
+ * gimp_session_info_apply_geometry:
+ * @info:
+ * @screen:
+ * @current_monitor:
+ *
+ * Apply the geometry stored in the session info object to the
+ * associated widget.
+ **/
+void
+gimp_session_info_apply_geometry (GimpSessionInfo *info,
+                                  GdkScreen       *screen,
+                                  gint             current_monitor,
+                                  gboolean         apply_stored_monitor)
+{
+  GdkRectangle rect;
+  GdkRectangle work_rect;
+  gchar        geom[32];
+  gint         monitor;
+  gint         width;
+  gint         height;
+
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+  g_return_if_fail (GTK_IS_WINDOW (info->p->widget));
+  g_return_if_fail (GDK_IS_SCREEN (screen));
+
+  monitor = current_monitor;
+
+  if (apply_stored_monitor)
+    {
+      gint n_monitors;
+
+      n_monitors = gdk_screen_get_n_monitors (screen);
+
+      if (info->p->monitor != DEFAULT_MONITOR &&
+          info->p->monitor < n_monitors)
+        {
+          monitor = info->p->monitor;
+        }
+      else
+        {
+          monitor = gdk_screen_get_primary_monitor (screen);
+        }
+    }
+
+  gdk_screen_get_monitor_geometry (screen, monitor, &rect);
+  gdk_screen_get_monitor_workarea (screen, monitor, &work_rect);
+
+  info->p->x += rect.x;
+  info->p->y += rect.y;
+
+  if (gimp_session_info_get_remember_size (info) &&
+      info->p->width  > 0 &&
+      info->p->height > 0)
+    {
+      width  = info->p->width;
+      height = info->p->height;
+    }
+  else
+    {
+      GtkRequisition requisition;
+
+      gtk_widget_size_request (info->p->widget, &requisition);
+
+      width  = requisition.width;
+      height = requisition.height;
+    }
+
+  info->p->x = CLAMP (info->p->x,
+                      work_rect.x,
+                      work_rect.x + work_rect.width  - width);
+  info->p->y = CLAMP (info->p->y,
+                      work_rect.y,
+                      work_rect.y + work_rect.height - height);
+
+  if (info->p->right_align && info->p->bottom_align)
+    {
+      g_strlcpy (geom, "-0-0", sizeof (geom));
+    }
+  else if (info->p->right_align)
+    {
+      g_snprintf (geom, sizeof (geom), "-0%+d", info->p->y);
+    }
+  else if (info->p->bottom_align)
+    {
+      g_snprintf (geom, sizeof (geom), "%+d-0", info->p->x);
+    }
+  else
+    {
+      g_snprintf (geom, sizeof (geom), "%+d%+d", info->p->x, info->p->y);
+    }
+
+  gtk_window_parse_geometry (GTK_WINDOW (info->p->widget), geom);
+
+  if (gimp_session_info_get_remember_size (info) &&
+      info->p->width  > 0 &&
+      info->p->height > 0)
+    {
+      gtk_window_set_default_size (GTK_WINDOW (info->p->widget),
+                                   info->p->width, info->p->height);
+    }
+
+  /*  Window managers and windowing systems suck. They have their own
+   *  ideas about WM standards and when it's appropriate to honor
+   *  user/application-set window positions and when not. Therefore,
+   *  use brute force and "manually" position dialogs whenever they
+   *  are shown. This is important especially for transient dialogs,
+   *  because window managers behave even "smarter" then...
+   */
+  if (GTK_IS_DIALOG (info->p->widget))
+    g_signal_connect (info->p->widget, "show",
+                      G_CALLBACK (gimp_session_info_dialog_show),
+                      info);
+}
+
+/**
+ * gimp_session_info_read_geometry:
+ * @info:  A #GimpSessionInfo
+ * @cevent A #GdkEventConfigure. If set, use the size from here
+ *         instead of from the window allocation.
+ *
+ * Read geometry related information from the associated widget.
+ **/
+void
+gimp_session_info_read_geometry (GimpSessionInfo   *info,
+                                 GdkEventConfigure *cevent)
+{
+  GdkWindow *window;
+  GdkScreen *screen;
+
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+  g_return_if_fail (GTK_IS_WINDOW (info->p->widget));
+
+  window = gtk_widget_get_window (info->p->widget);
+  screen = gtk_widget_get_screen (info->p->widget);
+
+  if (window)
+    {
+      gint         x, y;
+      gint         monitor;
+      GdkRectangle geometry;
+
+      gdk_window_get_root_origin (window, &x, &y);
+
+      /* Don't write negative values to the sessionrc, they are
+       * interpreted as relative to the right, respective bottom edge
+       * of the screen.
+       */
+      info->p->x = MAX (0, x);
+      info->p->y = MAX (0, y);
+
+      monitor = gdk_screen_get_monitor_at_point (screen,
+                                                 info->p->x, info->p->y);
+      gdk_screen_get_monitor_geometry (screen, monitor, &geometry);
+
+      /* Always store window coordinates relative to the monitor */
+      info->p->x -= geometry.x;
+      info->p->y -= geometry.y;
+
+      if (gimp_session_info_get_remember_size (info))
+        {
+          int width;
+          int height;
+
+          if (cevent)
+            {
+              width  = cevent->width;
+              height = cevent->height;
+            }
+          else
+            {
+              GtkAllocation allocation;
+
+              gtk_widget_get_allocation (info->p->widget, &allocation);
+
+              width  = allocation.width;
+              height = allocation.height;
+            }
+
+          info->p->width  = width;
+          info->p->height = height;
+        }
+      else
+        {
+          info->p->width  = 0;
+          info->p->height = 0;
+        }
+
+      info->p->monitor = DEFAULT_MONITOR;
+
+      if (monitor != gdk_screen_get_primary_monitor (screen))
+        info->p->monitor = monitor;
+    }
+
+  info->p->open = FALSE;
+
+  if (gimp_session_info_get_remember_if_open (info))
+    {
+      GimpDialogVisibilityState visibility;
+
+      visibility =
+        GPOINTER_TO_INT (g_object_get_data (G_OBJECT (info->p->widget),
+                                            GIMP_DIALOG_VISIBILITY_KEY));
+
+      switch (visibility)
+        {
+        case GIMP_DIALOG_VISIBILITY_UNKNOWN:
+          info->p->open = gtk_widget_get_visible (info->p->widget);
+          break;
+
+        case GIMP_DIALOG_VISIBILITY_INVISIBLE:
+          info->p->open = FALSE;
+          break;
+
+        case GIMP_DIALOG_VISIBILITY_HIDDEN:
+        case GIMP_DIALOG_VISIBILITY_VISIBLE:
+          /* Even if a dialog is hidden (with Windows->Hide docks) it
+           * is still considered open. It will be restored the next
+           * time GIMP starts
+           */
+          info->p->open = TRUE;
+          break;
+        }
+    }
+
+  info->p->screen = DEFAULT_SCREEN;
+
+  if (info->p->open)
+    {
+      GdkDisplay *display = gtk_widget_get_display (info->p->widget);
+
+      if (screen != gdk_display_get_default_screen (display))
+        info->p->screen = gdk_screen_get_number (screen);
+    }
+}
+
+void
+gimp_session_info_get_info (GimpSessionInfo *info)
+{
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+  g_return_if_fail (GTK_IS_WIDGET (info->p->widget));
+
+  gimp_session_info_read_geometry (info, NULL /*cevent*/);
+
+  if (GIMP_IS_SESSION_MANAGED (info->p->widget))
+    info->p->aux_info =
+      gimp_session_managed_get_aux_info (GIMP_SESSION_MANAGED (info->p->widget));
+
+  if (GIMP_IS_DOCK_CONTAINER (info->p->widget))
+    {
+      GimpDockContainer *dock_container = GIMP_DOCK_CONTAINER (info->p->widget);
+      GList             *iter           = NULL;
+      GList             *docks;
+
+      docks = gimp_dock_container_get_docks (dock_container);
+
+      for (iter = docks;
+           iter;
+           iter = g_list_next (iter))
+        {
+          GimpDock *dock = GIMP_DOCK (iter->data);
+
+          info->p->docks =
+            g_list_append (info->p->docks,
+                           gimp_session_info_dock_from_widget (dock));
+        }
+
+      g_list_free (docks);
+    }
+}
+
+/**
+ * gimp_session_info_get_info_with_widget:
+ * @info:
+ * @widget: #GtkWidget to use
+ *
+ * Temporarily sets @widget on @info and calls
+ * gimp_session_info_get_info(), then restores the old widget that was
+ * set.
+ **/
+void
+gimp_session_info_get_info_with_widget (GimpSessionInfo *info,
+                                        GtkWidget       *widget)
+{
+  GtkWidget *old_widget;
+
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  old_widget = gimp_session_info_get_widget (info);
+
+  gimp_session_info_set_widget (info, widget);
+  gimp_session_info_get_info (info);
+  gimp_session_info_set_widget (info, old_widget);
+}
+
+void
+gimp_session_info_clear_info (GimpSessionInfo *info)
+{
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+
+  if (info->p->aux_info)
+    {
+      g_list_free_full (info->p->aux_info,
+                        (GDestroyNotify) gimp_session_info_aux_free);
+      info->p->aux_info = NULL;
+    }
+
+  if (info->p->docks)
+    {
+      g_list_free_full (info->p->docks,
+                        (GDestroyNotify) gimp_session_info_dock_free);
+      info->p->docks = NULL;
+    }
+}
+
+gboolean
+gimp_session_info_is_singleton (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return (! gimp_session_info_is_for_dock_window (info) &&
+          info->p->factory_entry &&
+          info->p->factory_entry->singleton);
+}
+
+gboolean
+gimp_session_info_is_session_managed (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return (gimp_session_info_is_for_dock_window (info) ||
+          (info->p->factory_entry &&
+           info->p->factory_entry->session_managed));
+}
+
+
+gboolean
+gimp_session_info_get_remember_size (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return (gimp_session_info_is_for_dock_window (info) ||
+          (info->p->factory_entry &&
+           info->p->factory_entry->remember_size));
+}
+
+gboolean
+gimp_session_info_get_remember_if_open (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return (gimp_session_info_is_for_dock_window (info) ||
+          (info->p->factory_entry &&
+           info->p->factory_entry->remember_if_open));
+}
+
+GtkWidget *
+gimp_session_info_get_widget (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return info->p->widget;
+}
+
+void
+gimp_session_info_set_widget (GimpSessionInfo *info,
+                              GtkWidget       *widget)
+{
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+
+  if (GTK_IS_DIALOG (info->p->widget))
+    g_signal_handlers_disconnect_by_func (info->p->widget,
+                                          gimp_session_info_dialog_show,
+                                          info);
+
+  info->p->widget = widget;
+}
+
+GimpDialogFactoryEntry *
+gimp_session_info_get_factory_entry (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return info->p->factory_entry;
+}
+
+void
+gimp_session_info_set_factory_entry (GimpSessionInfo        *info,
+                                     GimpDialogFactoryEntry *entry)
+{
+  g_return_if_fail (GIMP_IS_SESSION_INFO (info));
+
+  info->p->factory_entry = entry;
+}
+
+gboolean
+gimp_session_info_get_open (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), FALSE);
+
+  return info->p->open;
+}
+
+gint
+gimp_session_info_get_x (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), 0);
+
+  return info->p->x;
+}
+
+gint
+gimp_session_info_get_y (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), 0);
+
+  return info->p->y;
+}
+
+gint
+gimp_session_info_get_width (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), 0);
+
+  return info->p->width;
+}
+
+gint
+gimp_session_info_get_height (GimpSessionInfo *info)
+{
+  g_return_val_if_fail (GIMP_IS_SESSION_INFO (info), 0);
+
+  return info->p->height;
+}
+
+static gint position_accuracy = 0;
+
+/**
+ * gimp_session_info_set_position_accuracy:
+ * @accuracy:
+ *
+ * When writing sessionrc, make positions and sizes a multiple of
+ * @accuracy. Meant to be used by test cases that does regression
+ * testing on session managed window positions and sizes, to allow for
+ * some deviations from the original setup, that the window manager
+ * might impose.
+ **/
+void
+gimp_session_info_set_position_accuracy (gint accuracy)
+{
+  position_accuracy = accuracy;
+}
+
+/**
+ * gimp_session_info_apply_position_accuracy:
+ * @position:
+ *
+ * Rounds @position to the nearest multiple of what was set with
+ * gimp_session_info_set_position_accuracy().
+ *
+ * Returns: Result.
+ **/
+gint
+gimp_session_info_apply_position_accuracy (gint position)
+{
+  if (position_accuracy > 0)
+    {
+      gint to_floor = position + position_accuracy / 2;
+
+      return to_floor - to_floor % position_accuracy;
+    }
+
+  return position;
+}