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b7d37bd4a5
2008-02-04 Sven Neumann <sven@gimp.org> * plug-ins/print/Makefile.am * plug-ins/print/print-page-setup.[ch]: new files. * plug-ins/print/print-page-layout.c * plug-ins/print/print-settings.c * plug-ins/print/print.c: first draft of a Page Setup menu entry instead of the "Adjust Page Size" button (bug #513291). * plug-ins/print/print.h * plug-ins/print/print-draw-page.c: removed unused code. svn path=/trunk/; revision=24789
366 lines
11 KiB
C
366 lines
11 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <libgimp/gimp.h>
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#include <libgimp/gimpui.h>
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#include "print.h"
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#include "print-settings.h"
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#define PRINT_SETTINGS_MAJOR_VERSION 0
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#define PRINT_SETTINGS_MINOR_VERSION 4
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static GKeyFile * print_settings_key_file_from_settings (PrintData *data);
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static void save_print_settings_resource_file (GKeyFile *settings_key_file);
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static void save_print_settings_as_parasite (GKeyFile *settings_key_file,
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gint32 image_ID);
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static void add_print_setting_to_key_file (const gchar *key,
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const gchar *value,
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gpointer data);
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static GKeyFile * print_settings_key_file_from_resource_file (void);
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static GKeyFile * print_settings_key_file_from_parasite (gint32 image_ID);
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static gboolean load_print_settings_from_key_file (PrintData *data,
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GKeyFile *key_file);
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static GKeyFile * check_version (GKeyFile *key_file);
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/*
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* set GtkPrintSettings from the contents of a "print-settings"
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* image parasite, or, if none exists, from a resource
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* file of the same name
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*/
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gboolean
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load_print_settings (PrintData *data)
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{
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GKeyFile *key_file = print_settings_key_file_from_parasite (data->image_id);
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if (! key_file)
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key_file = print_settings_key_file_from_resource_file ();
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if (key_file)
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{
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load_print_settings_from_key_file (data, key_file);
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g_key_file_free (key_file);
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return TRUE;
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}
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return FALSE;
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}
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/*
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* save all settings as a resource file "print-settings"
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* and as an image parasite
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*/
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void
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save_print_settings (PrintData *data)
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{
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GKeyFile *key_file;
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key_file = print_settings_key_file_from_settings (data);
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save_print_settings_resource_file (key_file);
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/* image setup */
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if (gimp_image_is_valid (data->image_id))
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{
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g_key_file_set_integer (key_file, "image-setup",
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"unit", data->unit);
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g_key_file_set_double (key_file, "image-setup",
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"x-resolution", data->xres);
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g_key_file_set_double (key_file, "image-setup",
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"y-resolution", data->yres);
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g_key_file_set_double (key_file, "image-setup",
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"x-offset", data->offset_x);
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g_key_file_set_double (key_file, "image-setup",
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"y-offset", data->offset_y);
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g_key_file_set_integer (key_file, "image-setup",
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"center-mode", data->center);
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g_key_file_set_boolean (key_file, "image-setup",
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"use-full-page", data->use_full_page);
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save_print_settings_as_parasite (key_file, data->image_id);
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}
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g_key_file_free (key_file);
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}
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/*
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* serialize print settings into a GKeyFile
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*/
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static GKeyFile *
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print_settings_key_file_from_settings (PrintData *data)
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{
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GtkPrintOperation *operation = data->operation;
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GtkPrintSettings *settings;
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GKeyFile *key_file = g_key_file_new ();
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g_key_file_set_list_separator (key_file, '=');
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/* put version information into the file */
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g_key_file_set_integer (key_file, "meta", "major-version",
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PRINT_SETTINGS_MAJOR_VERSION);
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g_key_file_set_integer (key_file, "meta", "minor-version",
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PRINT_SETTINGS_MINOR_VERSION);
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/* save the contents of the GtkPrintSettings for the operation */
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settings = gtk_print_operation_get_print_settings (operation);
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if (settings)
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gtk_print_settings_foreach (settings, add_print_setting_to_key_file,
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key_file);
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return key_file;
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}
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/*
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* create a resource file from a GKeyFile holding the settings
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*/
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static void
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save_print_settings_resource_file (GKeyFile *settings_key_file)
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{
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gchar *filename;
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gchar *contents;
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gsize length;
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GError *error = NULL;
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contents = g_key_file_to_data (settings_key_file, &length, &error);
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if (error)
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{
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g_warning ("Unable to get contents of settings key file: %s",
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error->message);
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g_error_free (error);
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return;
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}
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filename = g_build_filename (gimp_directory (), "print-settings", NULL);
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if (! g_file_set_contents (filename, contents, length, &error))
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{
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g_warning ("Unable to write print settings to '%s': %s",
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gimp_filename_to_utf8 (filename), error->message);
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g_error_free (error);
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}
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g_free (filename);
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g_free (contents);
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}
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/*
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* create an image parasite called "print-settings" from a GKeyFile
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* holding the print settings
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*/
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static void
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save_print_settings_as_parasite (GKeyFile *settings_key_file,
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gint32 image_ID)
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{
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gchar *contents;
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gsize length;
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GError *error = NULL;
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contents = g_key_file_to_data (settings_key_file, &length, &error);
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if (! contents)
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{
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g_warning ("Unable to get contents of settings key file: %s",
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error->message);
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g_error_free (error);
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return;
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}
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gimp_image_attach_new_parasite (image_ID, "print-settings",
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0, length, contents);
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g_free (contents);
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}
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/*
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* callback used in gtk_print_settings_foreach loop
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*/
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static void
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add_print_setting_to_key_file (const gchar *key,
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const gchar *value,
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gpointer data)
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{
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GKeyFile *key_file = data;
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g_key_file_set_value (key_file, "print-settings", key, value);
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}
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/*
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* deserialize a "print-settings" resource file into a GKeyFile
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*/
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static GKeyFile *
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print_settings_key_file_from_resource_file (void)
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{
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GKeyFile *key_file = g_key_file_new ();
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gchar *filename;
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g_key_file_set_list_separator (key_file, '=');
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filename = g_build_filename (gimp_directory (), "print-settings", NULL);
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if (! g_key_file_load_from_file (key_file, filename, G_KEY_FILE_NONE, NULL))
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{
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g_key_file_free (key_file);
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key_file = NULL;
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}
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g_free (filename);
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return check_version (key_file);
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}
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/* load information from an image parasite called "print-settings"
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* return a GKeyFile containing the information if a valid parasite is found,
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* NULL otherwise
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*/
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static GKeyFile *
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print_settings_key_file_from_parasite (gint32 image_ID)
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{
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GimpParasite *parasite;
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GKeyFile *key_file;
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parasite = gimp_image_parasite_find (image_ID, "print-settings");
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if (! parasite)
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return NULL;
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key_file = g_key_file_new ();
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g_key_file_set_list_separator (key_file, '=');
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if (! g_key_file_load_from_data (key_file,
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gimp_parasite_data (parasite),
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gimp_parasite_data_size (parasite),
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G_KEY_FILE_NONE, NULL))
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{
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g_key_file_free (key_file);
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key_file = NULL;;
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}
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gimp_parasite_free (parasite);
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return check_version (key_file);
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}
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static gboolean
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load_print_settings_from_key_file (PrintData *data,
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GKeyFile *key_file)
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{
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GtkPrintOperation *operation = data->operation;
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GtkPrintSettings *settings;
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gchar **keys;
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gsize n_keys;
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gint i;
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settings = gtk_print_operation_get_print_settings (operation);
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if (! settings)
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settings = gtk_print_settings_new ();
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keys = g_key_file_get_keys (key_file, "print-settings", &n_keys, NULL);
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if (! keys)
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return FALSE;
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for (i = 0; i < n_keys; i++)
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{
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gchar *value;
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value = g_key_file_get_value (key_file, "print-settings", keys[i], NULL);
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if (value)
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{
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gtk_print_settings_set (settings, keys[i], value);
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g_free (value);
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}
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}
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g_strfreev (keys);
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if (g_key_file_has_key (key_file, "image-setup", "unit", NULL))
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{
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data->unit = g_key_file_get_integer (key_file,
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"image-setup", "unit", NULL);
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}
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if (g_key_file_has_key (key_file, "image-setup", "x-resolution", NULL) &&
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g_key_file_has_key (key_file, "image-setup", "y-resolution", NULL))
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{
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data->xres = g_key_file_get_double (key_file,
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"image-setup", "x-resolution", NULL);
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data->yres = g_key_file_get_double (key_file,
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"image-setup", "y-resolution", NULL);
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}
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if (g_key_file_has_key (key_file, "image-setup", "x-offset", NULL) &&
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g_key_file_has_key (key_file, "image-setup", "y-offset", NULL))
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{
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data->offset_x = g_key_file_get_double (key_file,
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"image-setup", "x-offset", NULL);
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data->offset_y = g_key_file_get_double (key_file,
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"image-setup", "y-offset", NULL);
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}
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if (g_key_file_has_key (key_file, "image-setup", "center-mode", NULL))
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{
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data->center = g_key_file_get_integer (key_file,
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"image-setup", "center-mode", NULL);
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}
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if (g_key_file_has_key (key_file, "image-setup", "use-full-page", NULL))
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{
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data->use_full_page = g_key_file_get_boolean (key_file,
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"image-setup", "use-full-page", NULL);
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}
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gtk_print_operation_set_print_settings (operation, settings);
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return TRUE;
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}
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static GKeyFile *
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check_version (GKeyFile *key_file)
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{
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gint major_version;
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gint minor_version;
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if (! key_file || ! g_key_file_has_group (key_file, "meta"))
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return NULL;
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major_version = g_key_file_get_integer (key_file,
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"meta", "major-version", NULL);
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if (major_version != PRINT_SETTINGS_MAJOR_VERSION)
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return NULL;
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minor_version = g_key_file_get_integer (key_file,
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"meta", "minor-version", NULL);
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if (minor_version != PRINT_SETTINGS_MINOR_VERSION)
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return NULL;
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return key_file;
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}
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