Adding upstream version 2.10.34.upstream/2.10.34upstream

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

1 files changed, 320 insertions, 0 deletions

diff --git a/plug-ins/print/print-settings.c b/plug-ins/print/print-settings.c
new file mode 100644
index 0000000..617282f
--- /dev/null
+++ b/plug-ins/print/print-settings.c
@@ -0,0 +1,320 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * 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 <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "print.h"
+#include "print-settings.h"
+#include "print-utils.h"
+
+
+#define PRINT_SETTINGS_MAJOR_VERSION 0
+#define PRINT_SETTINGS_MINOR_VERSION 4
+
+#define PRINT_SETTINGS_NAME          "print-settings"
+
+
+static GKeyFile * print_settings_key_file_from_settings      (PrintData         *data);
+
+static void       print_settings_add_to_key_file             (const gchar       *key,
+                                                              const gchar       *value,
+                                                              gpointer           data);
+
+static GKeyFile * print_settings_key_file_from_resource_file (void);
+
+static GKeyFile * print_settings_key_file_from_parasite      (gint32             image_ID);
+
+static gboolean   print_settings_load_from_key_file          (PrintData         *data,
+                                                              GKeyFile          *key_file);
+
+static gboolean   print_settings_check_version               (GKeyFile          *key_file);
+
+/*
+ * set GtkPrintSettings from the contents of a "print-settings"
+ * image parasite, or, if none exists, from a resource
+ * file of the same name
+ */
+gboolean
+print_settings_load (PrintData *data)
+{
+  GKeyFile *key_file = print_settings_key_file_from_parasite (data->image_id);
+
+  if (! key_file)
+    key_file = print_settings_key_file_from_resource_file ();
+
+  if (key_file)
+    {
+      print_settings_load_from_key_file (data, key_file);
+      g_key_file_free (key_file);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+/*
+ * save all settings as a resource file "print-settings"
+ * and as an image parasite
+ */
+void
+print_settings_save (PrintData *data)
+{
+  GKeyFile *key_file = print_settings_key_file_from_settings (data);
+
+  /* image setup */
+  if (gimp_image_is_valid (data->image_id))
+    {
+      gdouble xres;
+      gdouble yres;
+
+      gimp_image_get_resolution (data->image_id, &xres, &yres);
+
+      g_key_file_set_integer (key_file, "image-setup",
+                              "unit", data->unit);
+      /* Do not save the print resolution when it is the expected image
+       * resolution so that changing it (i.e. in "print size" dialog)
+       * is not overridden by any previous prints.
+       */
+      if ((data->min_xres <= xres && ABS (xres - data->xres) > 0.1)          ||
+          (data->min_yres <= yres && ABS (yres - data->yres) > 0.1)          ||
+          (data->min_xres > xres && ABS (data->min_xres - data->xres) > 0.1) ||
+          (data->min_yres > yres && ABS (data->min_yres - data->yres) > 0.1))
+        {
+          g_key_file_set_double  (key_file, "image-setup",
+                                  "x-resolution", data->xres);
+          g_key_file_set_double  (key_file, "image-setup",
+                                  "y-resolution", data->yres);
+        }
+      g_key_file_set_double  (key_file, "image-setup",
+                              "x-offset", data->offset_x);
+      g_key_file_set_double  (key_file, "image-setup",
+                              "y-offset", data->offset_y);
+      g_key_file_set_integer (key_file, "image-setup",
+                              "center-mode", data->center);
+      g_key_file_set_boolean (key_file, "image-setup",
+                              "use-full-page", data->use_full_page);
+      g_key_file_set_boolean (key_file, "image-setup",
+                              "crop-marks", data->draw_crop_marks);
+
+      print_utils_key_file_save_as_parasite (key_file,
+                                             data->image_id,
+                                             PRINT_SETTINGS_NAME);
+    }
+
+  /* some settings shouldn't be made persistent on a global level,
+   * so they are only stored in the image, not in the rcfile
+   */
+
+  g_key_file_remove_key (key_file, "image-setup", "x-resolution", NULL);
+  g_key_file_remove_key (key_file, "image-setup", "y-resolution", NULL);
+  g_key_file_remove_key (key_file, "image-setup", "x-offset", NULL);
+  g_key_file_remove_key (key_file, "image-setup", "y-offset", NULL);
+
+  g_key_file_remove_key (key_file, PRINT_SETTINGS_NAME, "n-copies", NULL);
+
+  print_utils_key_file_save_as_rcfile (key_file, PRINT_SETTINGS_NAME);
+
+  g_key_file_free (key_file);
+}
+
+/*
+ * serialize print settings into a GKeyFile
+ */
+static GKeyFile *
+print_settings_key_file_from_settings (PrintData *data)
+{
+  GtkPrintOperation *operation = data->operation;
+  GtkPrintSettings  *settings;
+  GKeyFile          *key_file  = g_key_file_new ();
+
+  /* put version information into the file */
+  g_key_file_set_integer (key_file, "meta", "major-version",
+                          PRINT_SETTINGS_MAJOR_VERSION);
+  g_key_file_set_integer (key_file, "meta", "minor-version",
+                          PRINT_SETTINGS_MINOR_VERSION);
+
+  /* save the contents of the GtkPrintSettings for the operation */
+  settings = gtk_print_operation_get_print_settings (operation);
+
+  if (settings)
+    gtk_print_settings_foreach (settings,
+                                print_settings_add_to_key_file, key_file);
+
+  return key_file;
+}
+
+/*
+ * callback used in gtk_print_settings_foreach loop
+ */
+static void
+print_settings_add_to_key_file (const gchar *key,
+                                const gchar *value,
+                                gpointer     data)
+{
+  GKeyFile *key_file = data;
+
+  g_key_file_set_value (key_file, PRINT_SETTINGS_NAME, key, value);
+}
+
+/*
+ * deserialize a "print-settings" resource file into a GKeyFile
+ */
+static GKeyFile *
+print_settings_key_file_from_resource_file (void)
+{
+  GKeyFile *key_file;
+
+  key_file = print_utils_key_file_load_from_rcfile (PRINT_SETTINGS_NAME);
+
+  if (key_file && ! print_settings_check_version (key_file))
+    {
+      g_key_file_free (key_file);
+      return NULL;
+    }
+
+  return key_file;
+}
+
+/* load information from an image parasite called "print-settings"
+ * return a GKeyFile containing the information if a valid parasite is found,
+ * NULL otherwise
+ */
+static GKeyFile *
+print_settings_key_file_from_parasite (gint32 image_ID)
+{
+  GKeyFile *key_file;
+
+  key_file = print_utils_key_file_load_from_parasite (image_ID,
+                                                      PRINT_SETTINGS_NAME);
+
+  if (key_file && ! print_settings_check_version (key_file))
+    {
+      g_key_file_free (key_file);
+      return NULL;
+    }
+
+  return key_file;
+}
+
+static gboolean
+print_settings_load_from_key_file (PrintData *data,
+                                   GKeyFile  *key_file)
+{
+  GtkPrintOperation  *operation = data->operation;
+  GtkPrintSettings   *settings;
+  gchar             **keys;
+  gsize               n_keys;
+  gint                i;
+
+  settings = gtk_print_operation_get_print_settings (operation);
+  if (! settings)
+    settings = gtk_print_settings_new ();
+
+  keys = g_key_file_get_keys (key_file, PRINT_SETTINGS_NAME, &n_keys, NULL);
+
+  if (! keys)
+    return FALSE;
+
+  for (i = 0; i < n_keys; i++)
+    {
+      gchar *value;
+
+      value = g_key_file_get_value (key_file,
+                                    PRINT_SETTINGS_NAME, keys[i], NULL);
+
+      if (value)
+        {
+          gtk_print_settings_set (settings, keys[i], value);
+          g_free (value);
+        }
+    }
+
+  g_strfreev (keys);
+
+  if (g_key_file_has_key (key_file, "image-setup", "unit", NULL))
+    {
+      data->unit = g_key_file_get_integer (key_file, "image-setup",
+                                           "unit", NULL);
+    }
+
+  if (g_key_file_has_key (key_file, "image-setup", "x-resolution", NULL) &&
+      g_key_file_has_key (key_file, "image-setup", "y-resolution", NULL))
+    {
+      data->xres = g_key_file_get_double (key_file, "image-setup",
+                                          "x-resolution", NULL);
+      data->yres = g_key_file_get_double (key_file, "image-setup",
+                                          "y-resolution", NULL);
+    }
+
+  if (g_key_file_has_key (key_file, "image-setup", "x-offset", NULL) &&
+      g_key_file_has_key (key_file, "image-setup", "y-offset", NULL))
+    {
+      data->offset_x = g_key_file_get_double (key_file, "image-setup",
+                                              "x-offset", NULL);
+      data->offset_y = g_key_file_get_double (key_file, "image-setup",
+                                              "y-offset", NULL);
+    }
+
+  if (g_key_file_has_key (key_file, "image-setup", "center-mode", NULL))
+    {
+      data->center = g_key_file_get_integer (key_file, "image-setup",
+                                             "center-mode", NULL);
+    }
+
+  if (g_key_file_has_key (key_file, "image-setup", "use-full-page", NULL))
+    {
+      data->use_full_page = g_key_file_get_boolean (key_file, "image-setup",
+                                                    "use-full-page", NULL);
+    }
+
+  if (g_key_file_has_key (key_file, "image-setup", "crop-marks", NULL))
+    {
+      data->draw_crop_marks = g_key_file_get_boolean (key_file, "image-setup",
+                                                      "crop-marks", NULL);
+    }
+
+  gtk_print_operation_set_print_settings (operation, settings);
+
+  return TRUE;
+}
+
+static gboolean
+print_settings_check_version (GKeyFile *key_file)
+{
+  gint  major_version;
+  gint  minor_version;
+
+  if (! g_key_file_has_group (key_file, "meta"))
+    return FALSE;
+
+  major_version = g_key_file_get_integer (key_file,
+                                          "meta", "major-version", NULL);
+
+  if (major_version != PRINT_SETTINGS_MAJOR_VERSION)
+    return FALSE;
+
+  minor_version = g_key_file_get_integer (key_file,
+                                          "meta", "minor-version", NULL);
+
+  if (minor_version != PRINT_SETTINGS_MINOR_VERSION)
+    return FALSE;
+
+  return TRUE;
+}