Adding upstream version 2.10.34.upstream/2.10.34upstream

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

1 files changed, 997 insertions, 0 deletions

diff --git a/libgimpwidgets/gimpwidgets.c b/libgimpwidgets/gimpwidgets.c
new file mode 100644
index 0000000..2958de9
--- /dev/null
+++ b/libgimpwidgets/gimpwidgets.c
@@ -0,0 +1,997 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpwidgets.c
+ * Copyright (C) 2000 Michael Natterer <mitch@gimp.org>
+ *
+ * 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 3 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
+ * Library 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
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpcolor/gimpcolor.h"
+#include "libgimpmath/gimpmath.h"
+#include "libgimpbase/gimpbase.h"
+
+#include "gimpwidgets.h"
+
+#include "libgimp/libgimp-intl.h"
+
+
+/*  hack: declare prototype here instead of #undef GIMP_DISABLE_DEPRECATED  */
+void   gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button);
+
+
+/**
+ * SECTION: gimpwidgets
+ * @title: GimpWidgets
+ * @short_description: A collection of convenient widget constructors,
+ *                     standard callbacks and helper functions.
+ *
+ * A collection of convenient widget constructors, standard callbacks
+ * and helper functions.
+ **/
+
+
+/**
+ * gimp_radio_group_new:
+ * @in_frame:    %TRUE if you want a #GtkFrame around the radio button group.
+ * @frame_title: The title of the Frame or %NULL if you don't want a title.
+ * @...:         A %NULL-terminated @va_list describing the radio buttons.
+ *
+ * Convenience function to create a group of radio buttons embedded into
+ * a #GtkFrame or #GtkVBox.
+ *
+ * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame).
+ **/
+GtkWidget *
+gimp_radio_group_new (gboolean            in_frame,
+                      const gchar        *frame_title,
+
+                      /* specify radio buttons as va_list:
+                       *  const gchar    *label,
+                       *  GCallback       callback,
+                       *  gpointer        callback_data,
+                       *  gpointer        item_data,
+                       *  GtkWidget     **widget_ptr,
+                       *  gboolean        active,
+                       */
+
+                      ...)
+{
+  GtkWidget *vbox;
+  GtkWidget *button;
+  GSList    *group;
+
+  /*  radio button variables  */
+  const gchar  *label;
+  GCallback     callback;
+  gpointer      callback_data;
+  gpointer      item_data;
+  GtkWidget   **widget_ptr;
+  gboolean      active;
+
+  va_list args;
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
+
+  group = NULL;
+
+  /*  create the radio buttons  */
+  va_start (args, frame_title);
+  label = va_arg (args, const gchar *);
+  while (label)
+    {
+      callback      = va_arg (args, GCallback);
+      callback_data = va_arg (args, gpointer);
+      item_data     = va_arg (args, gpointer);
+      widget_ptr    = va_arg (args, GtkWidget **);
+      active        = va_arg (args, gboolean);
+
+      if (label != (gpointer) 1)
+        button = gtk_radio_button_new_with_mnemonic (group, label);
+      else
+        button = gtk_radio_button_new (group);
+
+      group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
+      gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+
+      if (item_data)
+        {
+          g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data);
+
+          /*  backward compatibility  */
+          g_object_set_data (G_OBJECT (button), "user_data", item_data);
+        }
+
+      if (widget_ptr)
+        *widget_ptr = button;
+
+      if (active)
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
+
+      g_signal_connect (button, "toggled",
+                        callback,
+                        callback_data);
+
+      gtk_widget_show (button);
+
+      label = va_arg (args, const gchar *);
+    }
+  va_end (args);
+
+  if (in_frame)
+    {
+      GtkWidget *frame;
+
+      frame = gimp_frame_new (frame_title);
+      gtk_container_add (GTK_CONTAINER (frame), vbox);
+      gtk_widget_show (vbox);
+
+      return frame;
+    }
+
+  return vbox;
+}
+
+/**
+ * gimp_radio_group_new2:
+ * @in_frame:              %TRUE if you want a #GtkFrame around the
+ *                         radio button group.
+ * @frame_title:           The title of the Frame or %NULL if you don't want
+ *                         a title.
+ * @radio_button_callback: The callback each button's "toggled" signal will
+ *                         be connected with.
+ * @radio_button_callback_data:
+ *                         The data which will be passed to g_signal_connect().
+ * @initial:               The @item_data of the initially pressed radio button.
+ * @...:                   A %NULL-terminated @va_list describing
+ *                         the radio buttons.
+ *
+ * Convenience function to create a group of radio buttons embedded into
+ * a #GtkFrame or #GtkVBox.
+ *
+ * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame).
+ **/
+GtkWidget *
+gimp_radio_group_new2 (gboolean         in_frame,
+                       const gchar     *frame_title,
+                       GCallback        radio_button_callback,
+                       gpointer         callback_data,
+                       gpointer         initial, /* item_data */
+
+                       /* specify radio buttons as va_list:
+                        *  const gchar *label,
+                        *  gpointer     item_data,
+                        *  GtkWidget  **widget_ptr,
+                        */
+
+                       ...)
+{
+  GtkWidget *vbox;
+  GtkWidget *button;
+  GSList    *group;
+
+  /*  radio button variables  */
+  const gchar *label;
+  gpointer     item_data;
+  GtkWidget  **widget_ptr;
+
+  va_list args;
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
+
+  group = NULL;
+
+  /*  create the radio buttons  */
+  va_start (args, initial);
+  label = va_arg (args, const gchar *);
+
+  while (label)
+    {
+      item_data  = va_arg (args, gpointer);
+      widget_ptr = va_arg (args, GtkWidget **);
+
+      if (label != (gpointer) 1)
+        button = gtk_radio_button_new_with_mnemonic (group, label);
+      else
+        button = gtk_radio_button_new (group);
+
+      group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
+      gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+
+      if (item_data)
+        {
+          g_object_set_data (G_OBJECT (button), "gimp-item-data", item_data);
+
+          /*  backward compatibility  */
+          g_object_set_data (G_OBJECT (button), "user_data", item_data);
+        }
+
+      if (widget_ptr)
+        *widget_ptr = button;
+
+      if (initial == item_data)
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
+
+      g_signal_connect (button, "toggled",
+                        radio_button_callback,
+                        callback_data);
+
+      gtk_widget_show (button);
+
+      label = va_arg (args, const gchar *);
+    }
+  va_end (args);
+
+  if (in_frame)
+    {
+      GtkWidget *frame;
+
+      frame = gimp_frame_new (frame_title);
+      gtk_container_add (GTK_CONTAINER (frame), vbox);
+      gtk_widget_show (vbox);
+
+      return frame;
+    }
+
+  return vbox;
+}
+
+/**
+ * gimp_int_radio_group_new:
+ * @in_frame:              %TRUE if you want a #GtkFrame around the
+ *                         radio button group.
+ * @frame_title:           The title of the Frame or %NULL if you don't want
+ *                         a title.
+ * @radio_button_callback: The callback each button's "toggled" signal will
+ *                         be connected with.
+ * @radio_button_callback_data:
+ *                         The data which will be passed to g_signal_connect().
+ * @initial:               The @item_data of the initially pressed radio button.
+ * @...:                   A %NULL-terminated @va_list describing
+ *                         the radio buttons.
+ *
+ * Convenience function to create a group of radio buttons embedded into
+ * a #GtkFrame or #GtkVBox. This function does the same thing as
+ * gimp_radio_group_new2(), but it takes integers as @item_data instead of
+ * pointers, since that is a very common case (mapping an enum to a radio
+ * group).
+ *
+ * Returns: A #GtkFrame or #GtkVBox (depending on @in_frame).
+ **/
+GtkWidget *
+gimp_int_radio_group_new (gboolean         in_frame,
+                          const gchar     *frame_title,
+                          GCallback        radio_button_callback,
+                          gpointer         callback_data,
+                          gint             initial, /* item_data */
+
+                          /* specify radio buttons as va_list:
+                           *  const gchar *label,
+                           *  gint         item_data,
+                           *  GtkWidget  **widget_ptr,
+                           */
+
+                          ...)
+{
+  GtkWidget *vbox;
+  GtkWidget *button;
+  GSList    *group;
+
+  /*  radio button variables  */
+  const gchar *label;
+  gint         item_data;
+  gpointer     item_ptr;
+  GtkWidget  **widget_ptr;
+
+  va_list args;
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
+
+  group = NULL;
+
+  /*  create the radio buttons  */
+  va_start (args, initial);
+  label = va_arg (args, const gchar *);
+
+  while (label)
+    {
+      item_data  = va_arg (args, gint);
+      widget_ptr = va_arg (args, GtkWidget **);
+
+      item_ptr = GINT_TO_POINTER (item_data);
+
+      if (label != GINT_TO_POINTER (1))
+        button = gtk_radio_button_new_with_mnemonic (group, label);
+      else
+        button = gtk_radio_button_new (group);
+
+      group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
+      gtk_box_pack_start (GTK_BOX (vbox), button, FALSE, FALSE, 0);
+
+      if (item_data)
+        {
+          g_object_set_data (G_OBJECT (button), "gimp-item-data", item_ptr);
+
+          /*  backward compatibility  */
+          g_object_set_data (G_OBJECT (button), "user_data", item_ptr);
+        }
+
+      if (widget_ptr)
+        *widget_ptr = button;
+
+      if (initial == item_data)
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
+
+      g_signal_connect (button, "toggled",
+                        radio_button_callback,
+                        callback_data);
+
+      gtk_widget_show (button);
+
+      label = va_arg (args, const gchar *);
+    }
+  va_end (args);
+
+  if (in_frame)
+    {
+      GtkWidget *frame;
+
+      frame = gimp_frame_new (frame_title);
+      gtk_container_add (GTK_CONTAINER (frame), vbox);
+      gtk_widget_show (vbox);
+
+      return frame;
+    }
+
+  return vbox;
+}
+
+/**
+ * gimp_radio_group_set_active:
+ * @radio_button: Pointer to a #GtkRadioButton.
+ * @item_data: The @item_data of the radio button you want to select.
+ *
+ * Calls gtk_toggle_button_set_active() with the radio button that was
+ * created with a matching @item_data.
+ **/
+void
+gimp_radio_group_set_active (GtkRadioButton *radio_button,
+                             gpointer        item_data)
+{
+  GtkWidget *button;
+  GSList    *group;
+
+  g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
+
+  for (group = gtk_radio_button_get_group (radio_button);
+       group;
+       group = g_slist_next (group))
+    {
+      button = GTK_WIDGET (group->data);
+
+      if (g_object_get_data (G_OBJECT (button), "gimp-item-data") == item_data)
+        {
+          gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
+          return;
+        }
+    }
+}
+
+/**
+ * gimp_int_radio_group_set_active:
+ * @radio_button: Pointer to a #GtkRadioButton.
+ * @item_data: The @item_data of the radio button you want to select.
+ *
+ * Calls gtk_toggle_button_set_active() with the radio button that was created
+ * with a matching @item_data. This function does the same thing as
+ * gimp_radio_group_set_active(), but takes integers as @item_data instead
+ * of pointers.
+ **/
+void
+gimp_int_radio_group_set_active (GtkRadioButton *radio_button,
+                                 gint            item_data)
+{
+  g_return_if_fail (GTK_IS_RADIO_BUTTON (radio_button));
+
+  gimp_radio_group_set_active (radio_button, GINT_TO_POINTER (item_data));
+}
+
+/**
+ * gimp_spin_button_new:
+ * @adjustment:     Returns the spinbutton's #GtkAdjustment.
+ * @value:          The initial value of the spinbutton.
+ * @lower:          The lower boundary.
+ * @upper:          The upper boundary.
+ * @step_increment: The spinbutton's step increment.
+ * @page_increment: The spinbutton's page increment (mouse button 2).
+ * @page_size:      Ignored, spin buttons must always have a zero page size.
+ * @climb_rate:     The spinbutton's climb rate.
+ * @digits:         The spinbutton's number of decimal digits.
+ *
+ * This function is a shortcut for gtk_adjustment_new() and a
+ * subsequent gtk_spin_button_new(). It also calls
+ * gtk_spin_button_set_numeric() so that non-numeric text cannot be
+ * entered.
+ *
+ * Deprecated: 2.10: Use gtk_spin_button_new() instead.
+ *
+ * Returns: A #GtkSpinButton and its #GtkAdjustment.
+ **/
+GtkWidget *
+gimp_spin_button_new (GtkObject **adjustment,  /* return value */
+                      gdouble     value,
+                      gdouble     lower,
+                      gdouble     upper,
+                      gdouble     step_increment,
+                      gdouble     page_increment,
+                      gdouble     page_size,
+                      gdouble     climb_rate,
+                      guint       digits)
+{
+  GtkWidget *spinbutton;
+
+  *adjustment = gtk_adjustment_new (value, lower, upper,
+                                    step_increment, page_increment, 0);
+
+  spinbutton = gimp_spin_button_new (GTK_ADJUSTMENT (*adjustment),
+                                     climb_rate, digits);
+
+  gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+
+  return spinbutton;
+}
+
+static void
+gimp_random_seed_update (GtkWidget *widget,
+                         gpointer   data)
+{
+  GtkWidget *spinbutton = data;
+
+  /* Generate a new seed if the "New Seed" button was clicked or
+   * of the "Randomize" toggle is activated
+   */
+  if (! GTK_IS_TOGGLE_BUTTON (widget) ||
+      gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
+    {
+      gtk_spin_button_set_value (GTK_SPIN_BUTTON (spinbutton),
+                                 (guint) g_random_int ());
+    }
+}
+
+/**
+ * gimp_random_seed_new:
+ * @seed:        A pointer to the variable which stores the random seed.
+ * @random_seed: A pointer to a boolean indicating whether seed should be
+ *               initialised randomly or not.
+ *
+ * Creates a widget that allows the user to control how the random number
+ * generator is initialized.
+ *
+ * Returns: A #GtkHBox containing a #GtkSpinButton for the seed and
+ *          a #GtkButton for setting a random seed.
+ **/
+GtkWidget *
+gimp_random_seed_new (guint    *seed,
+                      gboolean *random_seed)
+{
+  GtkWidget     *hbox;
+  GtkWidget     *toggle;
+  GtkWidget     *spinbutton;
+  GtkAdjustment *adj;
+  GtkWidget     *button;
+
+  g_return_val_if_fail (seed != NULL, NULL);
+  g_return_val_if_fail (random_seed != NULL, NULL);
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+
+  /* If we're being asked to generate a random seed, generate one. */
+  if (*random_seed)
+    *seed = g_random_int ();
+
+  adj = (GtkAdjustment *)
+    gtk_adjustment_new (*seed, 0, (guint32) -1, 1, 10, 0);
+  spinbutton = gimp_spin_button_new (adj, 1.0, 0);
+  gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+  gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
+  gtk_widget_show (spinbutton);
+
+  g_signal_connect (adj, "value-changed",
+                    G_CALLBACK (gimp_uint_adjustment_update),
+                    seed);
+
+  gimp_help_set_help_data (spinbutton,
+                           _("Use this value for random number generator "
+                             "seed - this allows you to repeat a "
+                             "given \"random\" operation"), NULL);
+
+  button = gtk_button_new_with_mnemonic (_("_New Seed"));
+  gtk_misc_set_padding (GTK_MISC (gtk_bin_get_child (GTK_BIN (button))), 2, 0);
+  gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
+  gtk_widget_show (button);
+
+  /* Send spinbutton as data so that we can change the value in
+   * gimp_random_seed_update()
+   */
+  g_signal_connect (button, "clicked",
+                    G_CALLBACK (gimp_random_seed_update),
+                    spinbutton);
+
+  gimp_help_set_help_data (button,
+                           _("Seed random number generator with a generated "
+                             "random number"),
+                           NULL);
+
+  toggle = gtk_check_button_new_with_mnemonic (_("_Randomize"));
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), *random_seed);
+  gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (gimp_toggle_button_update),
+                    random_seed);
+
+  /* Need to create a new seed when the "Randomize" toggle is activated  */
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (gimp_random_seed_update),
+                    spinbutton);
+
+  g_object_set_data (G_OBJECT (hbox), "spinbutton", spinbutton);
+  g_object_set_data (G_OBJECT (hbox), "button", button);
+  g_object_set_data (G_OBJECT (hbox), "toggle", toggle);
+
+  g_object_bind_property (toggle,     "active",
+                          spinbutton, "sensitive",
+                          G_BINDING_SYNC_CREATE | G_BINDING_INVERT_BOOLEAN);
+  g_object_bind_property (toggle, "active",
+                          button, "sensitive",
+                          G_BINDING_SYNC_CREATE | G_BINDING_INVERT_BOOLEAN);
+
+  return hbox;
+}
+
+typedef struct
+{
+  GimpChainButton *chainbutton;
+  gboolean         chain_constrains_ratio;
+  gdouble          orig_x;
+  gdouble          orig_y;
+  gdouble          last_x;
+  gdouble          last_y;
+} GimpCoordinatesData;
+
+static void
+gimp_coordinates_callback (GtkWidget           *widget,
+                           GimpCoordinatesData *data)
+{
+  gdouble new_x;
+  gdouble new_y;
+
+  new_x = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
+  new_y = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
+
+  if (gimp_chain_button_get_active (data->chainbutton))
+    {
+      if (data->chain_constrains_ratio)
+        {
+          if ((data->orig_x != 0) && (data->orig_y != 0))
+            {
+              g_signal_handlers_block_by_func (widget,
+                                               gimp_coordinates_callback,
+                                               data);
+
+              if (ROUND (new_x) != ROUND (data->last_x))
+                {
+                  data->last_x = new_x;
+                  new_y = (new_x * data->orig_y) / data->orig_x;
+
+                  gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1,
+                                              new_y);
+                  data->last_y
+                    = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
+                }
+              else if (ROUND (new_y) != ROUND (data->last_y))
+                {
+                  data->last_y = new_y;
+                  new_x = (new_y * data->orig_x) / data->orig_y;
+
+                  gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0,
+                                              new_x);
+                  data->last_x
+                    = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
+                }
+
+              g_signal_handlers_unblock_by_func (widget,
+                                                 gimp_coordinates_callback,
+                                                 data);
+            }
+        }
+      else
+        {
+          if (new_x != data->last_x)
+            {
+              gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 1, new_x);
+              data->last_y = data->last_x
+                = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 1);
+            }
+          else if (new_y != data->last_y)
+            {
+              gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (widget), 0, new_y);
+              data->last_x = data->last_y
+                = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
+            }
+        }
+    }
+  else
+    {
+      if (new_x != data->last_x)
+        data->last_x = new_x;
+      if (new_y != data->last_y)
+        data->last_y = new_y;
+    }
+}
+
+static void
+gimp_coordinates_data_free (GimpCoordinatesData *data)
+{
+  g_slice_free (GimpCoordinatesData, data);
+}
+
+static void
+gimp_coordinates_chainbutton_toggled (GimpChainButton *button,
+                                      GimpSizeEntry   *entry)
+{
+  if (gimp_chain_button_get_active (button))
+    {
+      GimpCoordinatesData *data;
+
+      data = g_object_get_data (G_OBJECT (entry), "coordinates-data");
+
+      data->orig_x = gimp_size_entry_get_refval (entry, 0);
+      data->orig_y = gimp_size_entry_get_refval (entry, 1);
+    }
+}
+
+/**
+ * gimp_coordinates_new:
+ * @unit:                   The initial unit of the #GimpUnitMenu.
+ * @unit_format:            A printf-like unit-format string as is used with
+ *                          gimp_unit_menu_new().
+ * @menu_show_pixels:       %TRUE if the #GimpUnitMenu should contain an item
+ *                          for GIMP_UNIT_PIXEL.
+ * @menu_show_percent:      %TRUE if the #GimpUnitMenu should contain an item
+ *                          for GIMP_UNIT_PERCENT.
+ * @spinbutton_width:       The horizontal size of the #GimpSizeEntry's
+ *                           #GtkSpinButton's.
+ * @update_policy:          The update policy for the #GimpSizeEntry.
+ * @chainbutton_active:     %TRUE if the attached #GimpChainButton should be
+ *                          active.
+ * @chain_constrains_ratio: %TRUE if the chainbutton should constrain the
+ *                          fields' aspect ratio. If %FALSE, the values will
+ *                          be constrained.
+ * @xlabel:                 The label for the X coordinate.
+ * @x:                      The initial value of the X coordinate.
+ * @xres:                   The horizontal resolution in DPI.
+ * @lower_boundary_x:       The lower boundary of the X coordinate.
+ * @upper_boundary_x:       The upper boundary of the X coordinate.
+ * @xsize_0:                The X value which will be treated as 0%.
+ * @xsize_100:              The X value which will be treated as 100%.
+ * @ylabel:                 The label for the Y coordinate.
+ * @y:                      The initial value of the Y coordinate.
+ * @yres:                   The vertical resolution in DPI.
+ * @lower_boundary_y:       The lower boundary of the Y coordinate.
+ * @upper_boundary_y:       The upper boundary of the Y coordinate.
+ * @ysize_0:                The Y value which will be treated as 0%.
+ * @ysize_100:              The Y value which will be treated as 100%.
+ *
+ * Convenience function that creates a #GimpSizeEntry with two fields for x/y
+ * coordinates/sizes with a #GimpChainButton attached to constrain either the
+ * two fields' values or the ratio between them.
+ *
+ * Returns: The new #GimpSizeEntry.
+ **/
+GtkWidget *
+gimp_coordinates_new (GimpUnit         unit,
+                      const gchar     *unit_format,
+                      gboolean         menu_show_pixels,
+                      gboolean         menu_show_percent,
+                      gint             spinbutton_width,
+                      GimpSizeEntryUpdatePolicy  update_policy,
+
+                      gboolean         chainbutton_active,
+                      gboolean         chain_constrains_ratio,
+
+                      const gchar     *xlabel,
+                      gdouble          x,
+                      gdouble          xres,
+                      gdouble          lower_boundary_x,
+                      gdouble          upper_boundary_x,
+                      gdouble          xsize_0,   /* % */
+                      gdouble          xsize_100, /* % */
+
+                      const gchar     *ylabel,
+                      gdouble          y,
+                      gdouble          yres,
+                      gdouble          lower_boundary_y,
+                      gdouble          upper_boundary_y,
+                      gdouble          ysize_0,   /* % */
+                      gdouble          ysize_100  /* % */)
+{
+  GimpCoordinatesData *data;
+  GtkAdjustment       *adjustment;
+  GtkWidget           *spinbutton;
+  GtkWidget           *sizeentry;
+  GtkWidget           *chainbutton;
+
+  adjustment = (GtkAdjustment *) gtk_adjustment_new (1, 0, 1, 1, 10, 0);
+  spinbutton = gimp_spin_button_new (adjustment, 1.0, 2);
+  gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spinbutton), TRUE);
+
+  if (spinbutton_width > 0)
+    {
+      if (spinbutton_width < 17)
+        gtk_entry_set_width_chars (GTK_ENTRY (spinbutton), spinbutton_width);
+      else
+        gtk_widget_set_size_request (spinbutton, spinbutton_width, -1);
+    }
+
+  sizeentry = gimp_size_entry_new (1, unit, unit_format,
+                                   menu_show_pixels,
+                                   menu_show_percent,
+                                   FALSE,
+                                   spinbutton_width,
+                                   update_policy);
+  gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 0, 4);
+  gtk_table_set_col_spacing (GTK_TABLE (sizeentry), 2, 4);
+  gimp_size_entry_add_field (GIMP_SIZE_ENTRY (sizeentry),
+                             GTK_SPIN_BUTTON (spinbutton), NULL);
+  gtk_table_attach_defaults (GTK_TABLE (sizeentry), spinbutton, 1, 2, 0, 1);
+  gtk_widget_show (spinbutton);
+
+  gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (sizeentry),
+                            (update_policy == GIMP_SIZE_ENTRY_UPDATE_RESOLUTION) ||
+                            (menu_show_pixels == FALSE) ?
+                            GIMP_UNIT_INCH : GIMP_UNIT_PIXEL);
+
+  gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 0, xres, TRUE);
+  gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (sizeentry), 1, yres, TRUE);
+  gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 0,
+                                         lower_boundary_x, upper_boundary_x);
+  gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (sizeentry), 1,
+                                         lower_boundary_y, upper_boundary_y);
+
+  if (menu_show_percent)
+    {
+      gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 0,
+                                xsize_0, xsize_100);
+      gimp_size_entry_set_size (GIMP_SIZE_ENTRY (sizeentry), 1,
+                                ysize_0, ysize_100);
+    }
+
+  gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 0, x);
+  gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (sizeentry), 1, y);
+
+  gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry),
+                                xlabel, 0, 0, 0.0);
+  gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (sizeentry),
+                                ylabel, 1, 0, 0.0);
+
+  chainbutton = gimp_chain_button_new (GIMP_CHAIN_RIGHT);
+
+  if (chainbutton_active)
+    gimp_chain_button_set_active (GIMP_CHAIN_BUTTON (chainbutton), TRUE);
+
+  gtk_table_attach (GTK_TABLE (sizeentry), chainbutton, 2, 3, 0, 2,
+                    GTK_SHRINK | GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0);
+  gtk_widget_show (chainbutton);
+
+  data = g_slice_new (GimpCoordinatesData);
+
+  data->chainbutton            = GIMP_CHAIN_BUTTON (chainbutton);
+  data->chain_constrains_ratio = chain_constrains_ratio;
+  data->orig_x                 = x;
+  data->orig_y                 = y;
+  data->last_x                 = x;
+  data->last_y                 = y;
+
+  g_object_set_data_full (G_OBJECT (sizeentry), "coordinates-data",
+                          data,
+                          (GDestroyNotify) gimp_coordinates_data_free);
+
+  g_signal_connect (sizeentry, "value-changed",
+                    G_CALLBACK (gimp_coordinates_callback),
+                    data);
+
+  g_object_set_data (G_OBJECT (sizeentry), "chainbutton", chainbutton);
+
+  g_signal_connect (chainbutton, "toggled",
+                    G_CALLBACK (gimp_coordinates_chainbutton_toggled),
+                    sizeentry);
+
+  return sizeentry;
+}
+
+
+/*
+ *  Standard Callbacks
+ */
+
+/**
+ * gimp_toggle_button_sensitive_update:
+ * @toggle_button: The #GtkToggleButton the "set_sensitive" and
+ *                 "inverse_sensitive" lists are attached to.
+ *
+ * If you attached a pointer to a #GtkWidget with g_object_set_data() and
+ * the "set_sensitive" key to the #GtkToggleButton, the sensitive state of
+ * the attached widget will be set according to the toggle button's
+ * "active" state.
+ *
+ * You can attach an arbitrary list of widgets by attaching another
+ * "set_sensitive" data pointer to the first widget (and so on...).
+ *
+ * This function can also set the sensitive state according to the toggle
+ * button's inverse "active" state by attaching widgets with the
+ * "inverse_sensitive" key.
+ *
+ * Deprecated: use g_object_bind_property() instead of using the
+ *             "set_sensitive" and "inverse_sensitive" data pointers.
+ **/
+void
+gimp_toggle_button_sensitive_update (GtkToggleButton *toggle_button)
+{
+  GtkWidget *set_sensitive;
+  gboolean   active;
+
+  active = gtk_toggle_button_get_active (toggle_button);
+
+  set_sensitive =
+    g_object_get_data (G_OBJECT (toggle_button), "set_sensitive");
+  while (set_sensitive)
+    {
+      gtk_widget_set_sensitive (set_sensitive, active);
+      set_sensitive =
+        g_object_get_data (G_OBJECT (set_sensitive), "set_sensitive");
+    }
+
+  set_sensitive =
+    g_object_get_data (G_OBJECT (toggle_button), "inverse_sensitive");
+  while (set_sensitive)
+    {
+      gtk_widget_set_sensitive (set_sensitive, ! active);
+      set_sensitive =
+        g_object_get_data (G_OBJECT (set_sensitive), "inverse_sensitive");
+    }
+}
+
+/**
+ * gimp_toggle_button_update:
+ * @widget: A #GtkToggleButton.
+ * @data:   A pointer to a #gint variable which will store the value of
+ *          gtk_toggle_button_get_active().
+ *
+ * Note that this function calls gimp_toggle_button_sensitive_update()
+ * which is a deprecated hack you shouldn't use. See that function's
+ * documentation for a proper replacement of its functionality.
+ **/
+void
+gimp_toggle_button_update (GtkWidget *widget,
+                           gpointer   data)
+{
+  gint *toggle_val = (gint *) data;
+
+  if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
+    *toggle_val = TRUE;
+  else
+    *toggle_val = FALSE;
+
+  gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
+}
+
+/**
+ * gimp_radio_button_update:
+ * @widget: A #GtkRadioButton.
+ * @data:   A pointer to a #gint variable which will store the value of
+ *          GPOINTER_TO_INT (g_object_get_data (@widget, "gimp-item-data")).
+ *
+ * Note that this function calls gimp_toggle_button_sensitive_update()
+ * which is a deprecated hack you shouldn't use. See that function's
+ * documentation for a proper replacement of its functionality.
+ **/
+void
+gimp_radio_button_update (GtkWidget *widget,
+                          gpointer   data)
+{
+  if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
+    {
+      gint *toggle_val = (gint *) data;
+
+      *toggle_val = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
+                                                        "gimp-item-data"));
+    }
+
+  gimp_toggle_button_sensitive_update (GTK_TOGGLE_BUTTON (widget));
+}
+
+/**
+ * gimp_int_adjustment_update:
+ * @adjustment: A #GtkAdjustment.
+ * @data:       A pointer to a #gint variable which will store the
+ *              @adjustment's value.
+ *
+ * Note that the #GtkAdjustment's value (which is a #gdouble) will be
+ * rounded with RINT().
+ **/
+void
+gimp_int_adjustment_update (GtkAdjustment *adjustment,
+                            gpointer       data)
+{
+  gint *val = (gint *) data;
+
+  *val = RINT (gtk_adjustment_get_value (adjustment));
+}
+
+/**
+ * gimp_uint_adjustment_update:
+ * @adjustment: A #GtkAdjustment.
+ * @data:       A pointer to a #guint variable which will store the
+ *              @adjustment's value.
+ *
+ * Note that the #GtkAdjustment's value (which is a #gdouble) will be rounded
+ * with (#guint) (value + 0.5).
+ **/
+void
+gimp_uint_adjustment_update (GtkAdjustment *adjustment,
+                             gpointer       data)
+{
+  guint *val = (guint *) data;
+
+  *val = (guint) (gtk_adjustment_get_value (adjustment) + 0.5);
+}
+
+/**
+ * gimp_float_adjustment_update:
+ * @adjustment: A #GtkAdjustment.
+ * @data:       A pointer to a #gfloat variable which will store the
+ *              @adjustment's value.
+ **/
+void
+gimp_float_adjustment_update (GtkAdjustment *adjustment,
+                              gpointer       data)
+{
+  gfloat *val = (gfloat *) data;
+
+  *val = gtk_adjustment_get_value (adjustment);
+
+}
+
+/**
+ * gimp_double_adjustment_update:
+ * @adjustment: A #GtkAdjustment.
+ * @data:       A pointer to a #gdouble variable which will store the
+ *              @adjustment's value.
+ **/
+void
+gimp_double_adjustment_update (GtkAdjustment *adjustment,
+                               gpointer       data)
+{
+  gdouble *val = (gdouble *) data;
+
+  *val = gtk_adjustment_get_value (adjustment);
+}