[easytag/wip/gsettings: 21/22] Store the scanner window mode in GSettings

[David King <davidk src gnome org>]

commit 8b39f06bfac025f87bac6a06f68622946aac80e0
Author: David King <amigadave amigadave com>
Date:   Thu Mar 7 21:49:15 2013 +0000

    Store the scanner window mode in GSettings

 src/easytag.c |    5 ++-
 src/scan.c    |   89 ++++++++++++++++++++++++++++++++++++++++++++------------
 src/scan.h    |    6 ++--
 src/setting.c |    2 -
 src/setting.h |    1 -
 5 files changed, 76 insertions(+), 27 deletions(-)
---
diff --git a/src/easytag.c b/src/easytag.c
index 0682df9..16db440 100644
--- a/src/easytag.c
+++ b/src/easytag.c
@@ -1925,7 +1925,7 @@ void Action_Scan_Selected_Files (void)
     /* Check if scanner window is opened */
     if (!ScannerWindow)
     {
-        Open_ScannerWindow(SCANNER_TYPE);
+        Open_ScannerWindow ();
         Statusbar_Message(_("Select Mode and Mask, and redo the same action"),TRUE);
         return;
     }
@@ -4497,7 +4497,8 @@ Init_Load_Default_Dir (void)
 
     // Open the scanner window
     if (g_settings_get_boolean (ETSettings, "scan-startup"))
-        Open_ScannerWindow(SCANNER_TYPE); // Open the last selected scanner
+        /* Open the last selected scanner. */
+        Open_ScannerWindow ();
 
     if (INIT_DIRECTORY)
     {
diff --git a/src/scan.c b/src/scan.c
index e7c4aad..e786bfb 100644
--- a/src/scan.c
+++ b/src/scan.c
@@ -276,6 +276,11 @@ static void Scan_Convert_Character (gchar **string);
 static GList *Scan_Generate_New_Tag_From_Mask (ET_File *ETFile, gchar *mask);
 static void Scan_Set_Scanner_Window_Init_Position (void);
 
+static gboolean et_scan_scantype_get (GValue *value, GVariant *variant,
+                                      gpointer user_data);
+static GVariant *et_scan_scantype_set (const GValue *value,
+                                        const GVariantType *expected_type,
+                                        gpointer user_data);
 
 
 /*************
@@ -2312,7 +2317,8 @@ static gchar
 /******************
  * Scanner Window *
  ******************/
-void Open_ScannerWindow (gint scanner_type)
+void
+Open_ScannerWindow ()
 {
     GtkWidget *ScanVBox;
     GtkWidget *HBox1, *HBox2, *HBox4, *VBox, *hbox, *vbox;
@@ -2332,19 +2338,10 @@ void Open_ScannerWindow (gint scanner_type)
     /* Check if already opened */
     if (ScannerWindow)
     {
-        //gdk_window_show(ScannerWindow->window);
         gtk_window_present(GTK_WINDOW(ScannerWindow));
-        if (ScannerOptionCombo)
-        {
-            gtk_combo_box_set_active(GTK_COMBO_BOX(ScannerOptionCombo), scanner_type);
-        }
         return;
     }
 
-    if ( scanner_type < SCANNER_FILL_TAG
-    ||   scanner_type > SCANNER_PROCESS_FIELDS)
-        scanner_type = SCANNER_FILL_TAG;
-
     /* The window */
     ScannerWindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
     /* Config */
@@ -2399,7 +2396,14 @@ void Open_ScannerWindow (gint scanner_type)
     /* Selection of the item made at the end of the function. */
     gtk_widget_set_tooltip_text (ScannerOptionCombo,
                                  _("Select the type of scanner to use"));
-    g_signal_connect(G_OBJECT(ScannerOptionCombo), "changed", G_CALLBACK(Scanner_Option_Menu_Activate_Item), 
NULL);
+    /* The selected scanner. */
+    g_settings_bind_with_mapping (ETSettings, "scan-type",
+                                  ScannerOptionCombo, "active",
+                                  G_SETTINGS_BIND_DEFAULT,
+                                  et_scan_scantype_get,
+                                  et_scan_scantype_set, NULL, NULL);
+    g_signal_connect (G_OBJECT (ScannerOptionCombo), "changed",
+                      G_CALLBACK (Scanner_Option_Menu_Activate_Item), NULL);
 
     /* 'Scan selected files' button */
     SWScanButton = gtk_button_new();
@@ -3042,8 +3046,9 @@ void Open_ScannerWindow (gint scanner_type)
     g_signal_emit_by_name(G_OBJECT(ProcessFieldsConvert),"toggled");/* To enable / disable entries */
     g_signal_emit_by_name(G_OBJECT(ProcessFieldsDetectRomanNumerals),"toggled");/* To enable / disable 
entries */
 
-    // Activate the current menu in the option menu
-    gtk_combo_box_set_active(GTK_COMBO_BOX(ScannerOptionCombo), scanner_type);
+    /* Set the active item after the necessary widgets have been
+     * instantiated. */
+    Scanner_Option_Menu_Activate_Item (ScannerOptionCombo, NULL);
 }
 
 static gboolean
@@ -3089,7 +3094,7 @@ void Scan_Select_Mode_And_Run_Scanner (ET_File *ETFile)
 void Scan_Use_Fill_Tag_Scanner (void)
 {
     if (!ScannerWindow || gtk_combo_box_get_active(GTK_COMBO_BOX(ScannerOptionCombo)) != SCANNER_FILL_TAG)
-        Open_ScannerWindow(SCANNER_FILL_TAG);
+        Open_ScannerWindow ();
     else
         Action_Scan_Selected_Files();
 }
@@ -3098,7 +3103,7 @@ void Scan_Use_Fill_Tag_Scanner (void)
 void Scan_Use_Rename_File_Scanner (void)
 {
     if (!ScannerWindow || gtk_combo_box_get_active(GTK_COMBO_BOX(ScannerOptionCombo)) != SCANNER_RENAME_FILE)
-        Open_ScannerWindow(SCANNER_RENAME_FILE);
+        Open_ScannerWindow ();
     else
         Action_Scan_Selected_Files();
 }
@@ -3106,7 +3111,7 @@ void Scan_Use_Rename_File_Scanner (void)
 void Scan_Use_Process_Fields_Scanner (void)
 {
     if (!ScannerWindow || gtk_combo_box_get_active(GTK_COMBO_BOX(ScannerOptionCombo)) != 
SCANNER_PROCESS_FIELDS)
-        Open_ScannerWindow(SCANNER_PROCESS_FIELDS);
+        Open_ScannerWindow ();
     else
         Action_Scan_Selected_Files();
 }
@@ -3163,9 +3168,6 @@ void ScannerWindow_Apply_Changes (void)
                             height);
         }
 
-        // The scanner selected
-        SCANNER_TYPE = gtk_combo_box_get_active(GTK_COMBO_BOX(ScannerOptionCombo));
-
         /* Group: select entries to process */
         PROCESS_FILENAME_FIELD    = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(ProcessFileNameField));
         PROCESS_TITLE_FIELD       = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(ProcessTitleField));
@@ -4117,3 +4119,52 @@ Scan_Set_Scanner_Window_Init_Position (void)
         gtk_window_move (GTK_WINDOW (ScannerWindow), x, y);
     }
 }
+
+/*
+ * et_scan_scantype_get:
+ * @value: the property value to be set (active item on combo box)
+ * @variant: the variant to set the @value from
+ * @user_data: user data set when the binding was created (unused)
+ *
+ * Wrapper function to convert the "scan-type" GSettings key to the active item
+ * of the combo box.
+ *
+ * Returns: %TRUE if the mapping was successful, %FALSE otherwise
+ */
+static gboolean
+et_scan_scantype_get (GValue *value, GVariant *variant, gpointer user_data)
+{
+    g_value_set_int (value, g_settings_get_enum (ETSettings, "scan-type"));
+    return TRUE;
+}
+
+/*
+ * et_scan_scantype_set:
+ * @value: the property value to set the @variant from
+ * @expected_type: the expected type of the returned variant
+ * @user_data: user data set when the binding was created (unused)
+ *
+ * Wrapper function to convert the active item of the combo box to the
+ * "scan-type" GSettings key.
+ *
+ * Returns: a new GVariant containing the mapped value, or %NULL upon failure
+ */
+static GVariant *
+et_scan_scantype_set (const GValue *value, const GVariantType *expected_type,
+                      gpointer user_data)
+{
+    gint active;
+    const gchar *nick;
+
+    active = g_value_get_int (value);
+    switch (active)
+    {
+        /* TODO: Generate the lookup values from the schema. */
+        case 0: nick = "fill"; break;
+        case 1: nick = "rename"; break;
+        case 2: nick = "process"; break;
+        default: nick = "rename"; break;
+    }
+
+    return g_variant_new (g_variant_type_peek_string (expected_type), nick);
+}
diff --git a/src/scan.h b/src/scan.h
index 9f6aa2b..e96591f 100644
--- a/src/scan.h
+++ b/src/scan.h
@@ -32,12 +32,12 @@ GtkWidget *ScannerWindow;
 GtkWidget *SWScanButton;    // To enable/disable it in easytag.c
 
 
-enum
+typedef enum
 {
     SCANNER_FILL_TAG = 0,
     SCANNER_RENAME_FILE,
     SCANNER_PROCESS_FIELDS
-}; // Add a new item : Min and Max values used in Open_ScannerWindow
+} ETScanType;
 
 enum {
     MASK_EDITOR_TEXT,
@@ -77,7 +77,7 @@ void Scan_Convert_Space_Into_Undescore  (gchar *string);
 void Scan_Remove_Spaces                 (gchar *string);
 
 void Init_ScannerWindow (void);
-void Open_ScannerWindow (gint scanner_type);
+void Open_ScannerWindow (void);
 void ScannerWindow_Apply_Changes (void);
 
 #endif /* __SCAN_H__ */
diff --git a/src/setting.c b/src/setting.c
index 3cdcb40..0b49857 100644
--- a/src/setting.c
+++ b/src/setting.c
@@ -134,7 +134,6 @@ tConfigVariable Config_Variables[] =
 
     {"audio_file_player",                       CV_TYPE_STRING,&AUDIO_FILE_PLAYER                        },
 
-    {"scanner_type",                             CV_TYPE_INT, &SCANNER_TYPE                              },
     {"fts_convert_underscore_and_p20_into_space",CV_TYPE_BOOL,&FTS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE },
     {"fts_convert_space_into_underscore",        CV_TYPE_BOOL,&FTS_CONVERT_SPACE_INTO_UNDERSCORE         },
     {"rfs_convert_underscore_and_p20_into_space",CV_TYPE_BOOL,&RFS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE },
@@ -270,7 +269,6 @@ void Init_Config_Variables (void)
     /*
      * Scanner
      */
-    SCANNER_TYPE                              = SCANNER_FILL_TAG;
     FTS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE = 1;
     FTS_CONVERT_SPACE_INTO_UNDERSCORE         = 0;
     RFS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE = 1;
diff --git a/src/setting.h b/src/setting.h
index 2dbb9f2..cad6b4a 100644
--- a/src/setting.h
+++ b/src/setting.h
@@ -84,7 +84,6 @@ gint    FILE_WRITING_ID3V1_ICONV_OPTIONS_TRANSLIT;
 gint    FILE_WRITING_ID3V1_ICONV_OPTIONS_IGNORE;
 
 /* Scanner */
-gint    SCANNER_TYPE;
 gint    FTS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE;
 gint    FTS_CONVERT_SPACE_INTO_UNDERSCORE;
 gint    RFS_CONVERT_UNDERSCORE_AND_P20_INTO_SPACE;