Adding upstream version 2.10.36.upstream/2.10.36

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

1 files changed, 535 insertions, 0 deletions

diff --git a/app/gui/themes.c b/app/gui/themes.c
new file mode 100644
index 0000000..0307094
--- /dev/null
+++ b/app/gui/themes.c
@@ -0,0 +1,535 @@
+/* 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 <stdlib.h>
+
+#include <gegl.h>
+#ifdef GDK_DISABLE_DEPRECATED
+#undef GDK_DISABLE_DEPRECATED
+#endif
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpconfig/gimpconfig.h"
+
+#include "gui-types.h"
+
+#include "config/gimpguiconfig.h"
+
+#include "core/gimp.h"
+
+#include "themes.h"
+
+#include "gimp-intl.h"
+
+
+/*  local function prototypes  */
+
+static void   themes_write_style         (GimpGuiConfig          *config,
+                                          GOutputStream          *output,
+                                          GError                **error);
+static void   themes_apply_theme         (Gimp                   *gimp,
+                                          GimpGuiConfig          *config);
+static void   themes_list_themes_foreach (gpointer                key,
+                                          gpointer                value,
+                                          gpointer                data);
+static gint   themes_name_compare        (const void             *p1,
+                                          const void             *p2);
+static void   themes_theme_change_notify (GimpGuiConfig          *config,
+                                          GParamSpec             *pspec,
+                                          Gimp                   *gimp);
+
+static void   themes_fix_pixbuf_style    (void);
+static void   themes_draw_pixbuf_layout  (GtkStyle               *style,
+                                          GdkWindow              *window,
+                                          GtkStateType            state_type,
+                                          gboolean                use_text,
+                                          GdkRectangle           *area,
+                                          GtkWidget              *widget,
+                                          const gchar            *detail,
+                                          gint                    x,
+                                          gint                    y,
+                                          PangoLayout            *layout);
+
+/*  private variables  */
+
+static GHashTable    *themes_hash        = NULL;
+static GtkStyleClass *pixbuf_style_class = NULL;
+
+
+/*  public functions  */
+
+void
+themes_init (Gimp *gimp)
+{
+  GimpGuiConfig *config;
+  gchar         *themerc;
+
+  g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+  config = GIMP_GUI_CONFIG (gimp->config);
+
+  themes_hash = g_hash_table_new_full (g_str_hash,
+                                       g_str_equal,
+                                       g_free,
+                                       g_object_unref);
+
+  if (config->theme_path)
+    {
+      GList *path;
+      GList *list;
+
+      path = gimp_config_path_expand_to_files (config->theme_path, NULL);
+
+      for (list = path; list; list = g_list_next (list))
+        {
+          GFile           *dir = list->data;
+          GFileEnumerator *enumerator;
+
+          enumerator =
+            g_file_enumerate_children (dir,
+                                       G_FILE_ATTRIBUTE_STANDARD_NAME ","
+                                       G_FILE_ATTRIBUTE_STANDARD_IS_HIDDEN ","
+                                       G_FILE_ATTRIBUTE_STANDARD_TYPE,
+                                       G_FILE_QUERY_INFO_NONE,
+                                       NULL, NULL);
+
+          if (enumerator)
+            {
+              GFileInfo *info;
+
+              while ((info = g_file_enumerator_next_file (enumerator,
+                                                          NULL, NULL)))
+                {
+                  if (! g_file_info_get_is_hidden (info) &&
+                      g_file_info_get_file_type (info) == G_FILE_TYPE_DIRECTORY)
+                    {
+                      GFile       *file;
+                      const gchar *name;
+                      gchar       *basename;
+
+                      file = g_file_enumerator_get_child (enumerator, info);
+                      name = gimp_file_get_utf8_name (file);
+
+                      basename = g_path_get_basename (name);
+
+                      if (gimp->be_verbose)
+                        g_print ("Adding theme '%s' (%s)\n",
+                                 basename, name);
+
+                      g_hash_table_insert (themes_hash, basename, file);
+                    }
+
+                  g_object_unref (info);
+                }
+
+              g_object_unref (enumerator);
+            }
+        }
+
+      g_list_free_full (path, (GDestroyNotify) g_object_unref);
+    }
+
+  themes_apply_theme (gimp, config);
+
+  themerc = gimp_personal_rc_file ("themerc");
+  gtk_rc_parse (themerc);
+  g_free (themerc);
+
+  themes_fix_pixbuf_style ();
+
+  g_signal_connect (config, "notify::theme",
+                    G_CALLBACK (themes_theme_change_notify),
+                    gimp);
+  g_signal_connect (config, "notify::compact-sliders",
+                    G_CALLBACK (themes_theme_change_notify),
+                    gimp);
+}
+
+void
+themes_exit (Gimp *gimp)
+{
+  g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+  if (themes_hash)
+    {
+      g_signal_handlers_disconnect_by_func (gimp->config,
+                                            themes_theme_change_notify,
+                                            gimp);
+
+      g_hash_table_destroy (themes_hash);
+      themes_hash = NULL;
+    }
+
+  g_clear_pointer (&pixbuf_style_class, g_type_class_unref);
+}
+
+gchar **
+themes_list_themes (Gimp *gimp,
+                    gint *n_themes)
+{
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+  g_return_val_if_fail (n_themes != NULL, NULL);
+
+  *n_themes = g_hash_table_size (themes_hash);
+
+  if (*n_themes > 0)
+    {
+      gchar **themes;
+      gchar **index;
+
+      themes = g_new0 (gchar *, *n_themes + 1);
+
+      index = themes;
+
+      g_hash_table_foreach (themes_hash, themes_list_themes_foreach, &index);
+
+      qsort (themes, *n_themes, sizeof (gchar *), themes_name_compare);
+
+      return themes;
+    }
+
+  return NULL;
+}
+
+GFile *
+themes_get_theme_dir (Gimp        *gimp,
+                      const gchar *theme_name)
+{
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+
+  if (! theme_name)
+    theme_name = GIMP_CONFIG_DEFAULT_THEME;
+
+  return g_hash_table_lookup (themes_hash, theme_name);
+}
+
+GFile *
+themes_get_theme_file (Gimp        *gimp,
+                       const gchar *first_component,
+                       ...)
+{
+  GimpGuiConfig *gui_config;
+  GFile         *file;
+  const gchar   *component;
+  va_list        args;
+
+  g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+  g_return_val_if_fail (first_component != NULL, NULL);
+
+  gui_config = GIMP_GUI_CONFIG (gimp->config);
+
+  file      = g_object_ref (themes_get_theme_dir (gimp, gui_config->theme));
+  component = first_component;
+
+  va_start (args, first_component);
+
+  do
+    {
+      GFile *tmp = g_file_get_child (file, component);
+      g_object_unref (file);
+      file = tmp;
+    }
+  while ((component = va_arg (args, gchar *)));
+
+  va_end (args);
+
+  if (! g_file_query_exists (file, NULL))
+    {
+      g_object_unref (file);
+
+      file      = g_object_ref (themes_get_theme_dir (gimp, NULL));
+      component = first_component;
+
+      va_start (args, first_component);
+
+      do
+        {
+          GFile *tmp = g_file_get_child (file, component);
+          g_object_unref (file);
+          file = tmp;
+        }
+      while ((component = va_arg (args, gchar *)));
+
+      va_end (args);
+    }
+
+  return file;
+}
+
+
+/*  private functions  */
+
+static void
+themes_write_style (GimpGuiConfig  *config,
+                    GOutputStream  *output,
+                    GError        **error)
+{
+  if (! *error)
+    {
+      g_output_stream_printf (
+        output, NULL, NULL, error,
+        "style \"gimp-spin-scale-style\"\n"
+        "{\n"
+        "  GimpSpinScale::compact = %d\n"
+        "}\n"
+        "\n"
+        "class \"GimpSpinScale\" style \"gimp-spin-scale-style\"\n"
+        "\n",
+        config->compact_sliders);
+    }
+}
+
+static void
+themes_apply_theme (Gimp          *gimp,
+                    GimpGuiConfig *config)
+{
+  GFile         *themerc;
+  GOutputStream *output;
+  GError        *error = NULL;
+
+  g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+  themerc = gimp_directory_file ("themerc", NULL);
+
+  if (gimp->be_verbose)
+    g_print ("Writing '%s'\n", gimp_file_get_utf8_name (themerc));
+
+  output = G_OUTPUT_STREAM (g_file_replace (themerc,
+                                            NULL, FALSE, G_FILE_CREATE_NONE,
+                                            NULL, &error));
+  if (! output)
+    {
+      gimp_message_literal (gimp, NULL, GIMP_MESSAGE_ERROR, error->message);
+      g_clear_error (&error);
+    }
+  else
+    {
+      GFile  *theme_dir   = themes_get_theme_dir (gimp, config->theme);
+      GFile  *gtkrc_user;
+      GSList *gtkrc_files = NULL;
+      GSList *iter;
+
+      if (theme_dir)
+        {
+          gtkrc_files = g_slist_prepend (
+            gtkrc_files,
+            g_file_get_child (theme_dir, "gtkrc"));
+        }
+      else
+        {
+          /*  get the hardcoded default theme gtkrc  */
+          gtkrc_files = g_slist_prepend (
+            gtkrc_files,
+            g_file_new_for_path (gimp_gtkrc ()));
+        }
+
+      gtkrc_files = g_slist_prepend (
+        gtkrc_files,
+        gimp_sysconf_directory_file ("gtkrc", NULL));
+
+      gtkrc_user  = gimp_directory_file ("gtkrc", NULL);
+      gtkrc_files = g_slist_prepend (
+        gtkrc_files,
+        gtkrc_user);
+
+      gtkrc_files = g_slist_reverse (gtkrc_files);
+
+      g_output_stream_printf (
+        output, NULL, NULL, &error,
+        "# GIMP themerc\n"
+        "#\n"
+        "# This file is written on GIMP startup and on every theme change.\n"
+        "# It is NOT supposed to be edited manually. Edit your personal\n"
+        "# gtkrc file instead (%s).\n"
+        "\n",
+        gimp_file_get_utf8_name (gtkrc_user));
+
+      themes_write_style (config, output, &error);
+
+      for (iter = gtkrc_files; ! error && iter; iter = g_slist_next (iter))
+        {
+          GFile *file = iter->data;
+
+          if (g_file_query_exists (file, NULL))
+            {
+              gchar *path;
+              gchar *esc_path;
+
+              path     = g_file_get_path (file);
+              esc_path = g_strescape (path, NULL);
+              g_free (path);
+
+              g_output_stream_printf (
+                output, NULL, NULL, &error,
+                "include \"%s\"\n",
+                esc_path);
+
+              g_free (esc_path);
+            }
+        }
+
+      if (! error)
+        {
+          g_output_stream_printf (
+            output, NULL, NULL, &error,
+            "\n"
+            "# end of themerc\n");
+        }
+
+      if (error)
+        {
+          GCancellable *cancellable = g_cancellable_new ();
+
+          gimp_message (gimp, NULL, GIMP_MESSAGE_ERROR,
+                        _("Error writing '%s': %s"),
+                        gimp_file_get_utf8_name (themerc), error->message);
+          g_clear_error (&error);
+
+          /* Cancel the overwrite initiated by g_file_replace(). */
+          g_cancellable_cancel (cancellable);
+          g_output_stream_close (output, cancellable, NULL);
+          g_object_unref (cancellable);
+        }
+      else if (! g_output_stream_close (output, NULL, &error))
+        {
+          gimp_message (gimp, NULL, GIMP_MESSAGE_ERROR,
+                        _("Error closing '%s': %s"),
+                        gimp_file_get_utf8_name (themerc), error->message);
+          g_clear_error (&error);
+        }
+
+      g_slist_free_full (gtkrc_files, g_object_unref);
+      g_object_unref (output);
+    }
+
+  g_object_unref (themerc);
+}
+
+static void
+themes_list_themes_foreach (gpointer key,
+                            gpointer value,
+                            gpointer data)
+{
+  gchar ***index = data;
+
+  **index = g_strdup ((gchar *) key);
+
+  (*index)++;
+}
+
+static gint
+themes_name_compare (const void *p1,
+                     const void *p2)
+{
+  return strcmp (* (char **) p1, * (char **) p2);
+}
+
+static void
+themes_theme_change_notify (GimpGuiConfig *config,
+                            GParamSpec    *pspec,
+                            Gimp          *gimp)
+{
+  themes_apply_theme (gimp, config);
+
+  gtk_rc_reparse_all ();
+
+  themes_fix_pixbuf_style ();
+}
+
+static void
+themes_fix_pixbuf_style (void)
+{
+  /* This is a "quick'n dirty" trick to get appropriate colors for
+   * themes in GTK+2, and in particular dark themes which would display
+   * insensitive items with a barely readable layout.
+   *
+   * This piece of code partly duplicates code from GTK+2 (slightly
+   * modified to get readable insensitive items) and will likely have to
+   * be removed for GIMP 3.
+   *
+   * See https://bugzilla.gnome.org/show_bug.cgi?id=770424
+   */
+
+  if (! pixbuf_style_class)
+    {
+      GType type = g_type_from_name ("PixbufStyle");
+
+      if (type)
+        {
+          pixbuf_style_class = g_type_class_ref (type);
+
+          if (pixbuf_style_class)
+            pixbuf_style_class->draw_layout = themes_draw_pixbuf_layout;
+        }
+    }
+}
+
+static void
+themes_draw_pixbuf_layout (GtkStyle      *style,
+                           GdkWindow     *window,
+                           GtkStateType   state_type,
+                           gboolean       use_text,
+                           GdkRectangle  *area,
+                           GtkWidget     *widget,
+                           const gchar   *detail,
+                           gint           x,
+                           gint           y,
+                           PangoLayout   *layout)
+{
+  GdkGC *gc;
+
+  gc = use_text ? style->text_gc[state_type] : style->fg_gc[state_type];
+
+  if (area)
+    gdk_gc_set_clip_rectangle (gc, area);
+
+  if (state_type == GTK_STATE_INSENSITIVE)
+    {
+      GdkGC       *copy = gdk_gc_new (window);
+      GdkGCValues  orig;
+      GdkColor     fore;
+      guint16      r, g, b;
+
+      gdk_gc_copy (copy, gc);
+      gdk_gc_get_values (gc, &orig);
+
+      r = 0x40 + (((orig.foreground.pixel >> 16) & 0xff) >> 1);
+      g = 0x40 + (((orig.foreground.pixel >>  8) & 0xff) >> 1);
+      b = 0x40 + (((orig.foreground.pixel >>  0) & 0xff) >> 1);
+
+      fore.pixel = (r << 16) | (g << 8) | b;
+      fore.red   = r * 257;
+      fore.green = g * 257;
+      fore.blue  = b * 257;
+
+      gdk_gc_set_foreground (copy, &fore);
+      gdk_draw_layout (window, copy, x, y, layout);
+
+      g_object_unref (copy);
+    }
+  else
+    {
+      gdk_draw_layout (window, gc, x, y, layout);
+    }
+
+  if (area)
+    gdk_gc_set_clip_rectangle (gc, NULL);
+}