Include a Other Software section in Help file

[geeqie.git] / src / history_list.c

diff --git a/src/history_list.c b/src/history_list.c
index e1fafbf..9077903 100644 (file)
--- a/src/history_list.c
+++ b/src/history_list.c
@@ -25,13 +25,15 @@
 #include "ui_fileops.h"
 
 
-/*
+/**
+ * @file
  *-----------------------------------------------------------------------------
  * Implements a history chain. Used by the Back and Forward toolbar buttons.
  * Selecting any folder appends the path to the end of the chain.
  * Pressing the Back and Forward buttons moves along the chain, but does
  * not make additions to the chain.
  * The chain always increases and is deleted at the end of the session
+ * 
  *-----------------------------------------------------------------------------
  */
 
@@ -98,6 +100,79 @@ void history_chain_append_end(const gchar *path)
                }
 }
 
+/**
+ * @file
+ *-----------------------------------------------------------------------------
+ * Implements an image history chain. Whenever an image is displayed it is
+ * appended to a chain.
+ * Pressing the Image Back and Image Forward buttons moves along the chain,
+ * but does not make additions to the chain.
+ * The chain always increases and is deleted at the end of the session
+ * 
+ *-----------------------------------------------------------------------------
+ */
+static GList *image_chain = NULL;
+static guint image_chain_index = G_MAXUINT;
+static gboolean image_nav_button = FALSE; /** Used to prevent the nav buttons making entries to the chain **/
+const gchar *image_chain_back()
+{
+       image_nav_button = TRUE;
+
+       image_chain_index = image_chain_index > 0 ? image_chain_index - 1 : 0;
+
+       return g_list_nth_data(image_chain, image_chain_index);
+}
+
+const gchar *image_chain_forward()
+{
+       image_nav_button= TRUE;
+       guint last = g_list_length(image_chain) - 1;
+
+       image_chain_index = image_chain_index < last ? image_chain_index + 1 : last;
+
+       return g_list_nth_data(image_chain, image_chain_index);
+}
+
+/**
+ * @brief Appends a path to the image history chain
+ * @param path Image path selected
+ * 
+ * Each time the user selects a new image it is appended to the chain
+ * except when it is identical to the current last entry
+ * The pointer is always moved to the end of the chain
+ */
+void image_chain_append_end(const gchar *path)
+{
+       GList *work;
+
+       if (!image_nav_button)
+               {
+               if(image_chain_index == G_MAXUINT)
+                       {
+                       image_chain = g_list_append(image_chain, g_strdup(path));
+                       image_chain_index = 0;
+                       }
+               else
+                       {
+                       work = g_list_last(image_chain);
+                       if (g_strcmp0(work->data , path) != 0)
+                               {
+                               image_chain = g_list_append(image_chain, g_strdup(path));
+                               image_chain_index = g_list_length(image_chain) - 1;
+                               DEBUG_3("%d %s", image_chain_index, path);
+                               }
+                       else
+                               {
+                               image_chain_index = g_list_length(image_chain) - 1;
+                               }
+                       }
+               }
+       else
+               {
+               image_nav_button = FALSE;
+               }
+}
+
 /*
  *-----------------------------------------------------------------------------
  * history lists
@@ -235,7 +310,7 @@ gboolean history_list_save(const gchar *path)
                list_count = g_list_position(hd->list, g_list_last(hd->list)) + 1;
                while (work && secsave_errno == SS_ERR_NONE)
                        {
-                       if (!(strcmp(hd->key, "path_list") == 0 && list_count > options->open_recent_list_maxsize))
+                       if ((!(strcmp(hd->key, "path_list") == 0 && list_count > options->open_recent_list_maxsize)) && (!(strcmp(hd->key, "recent") == 0 && (!isfile(work->data)))))
                                {
                                secure_fprintf(ssi, "\"%s\"\n", (gchar *)work->data);
                                }