From: Rob Norris <rw_norris@hotmail.com>
Date: Sun, 7 May 2017 13:13:20 +0000 (+0100)
Subject: Fix relative file path loading for DEM files.
X-Git-Url: https://git.street.me.uk/andy/viking.git/commitdiff_plain/b6db1dc4ad42f87f92dfe5511b1203dff8f8549d

Fix relative file path loading for DEM files.
---

diff --git a/src/file.c b/src/file.c
index 4b8a4255..b7bff204 100644
--- a/src/file.c
+++ b/src/file.c
@@ -259,6 +259,7 @@ static void string_list_set_param (gint i, GList *list, gpointer *layer_and_vp)
   vlsp.data.sl             = list;
   vlsp.vp                  = layer_and_vp[1];
   vlsp.is_file_operation   = TRUE;
+  vlsp.dirpath             = (const gchar*)layer_and_vp[2];
 
   vik_layer_set_param ( VIK_LAYER(layer_and_vp[0]), &vlsp );
 }
@@ -520,6 +521,7 @@ static gboolean file_read ( VikAggregateLayer *top, FILE *f, const gchar *dirpat
               vlsp.data                = x;
               vlsp.vp                  = vp;
               vlsp.is_file_operation   = TRUE;
+              vlsp.dirpath             = dirpath;
               vik_layer_set_param ( VIK_LAYER(stack->data), &vlsp );
             }
             found_match = TRUE;
diff --git a/src/uibuilder.h b/src/uibuilder.h
index af8b6031..1e61e3f7 100644
--- a/src/uibuilder.h
+++ b/src/uibuilder.h
@@ -45,6 +45,7 @@ typedef struct {
   VikLayerParamData   data;
   gpointer            vp; // AKA VikViewport*
   gboolean            is_file_operation; // denotes if for file I/O, as opposed to display/cut/copy etc... operations
+  const gchar*        dirpath; // The directory - so if the data is a relative file path, we know what it is relative to
 } VikLayerSetParam;
 
 typedef enum {
diff --git a/src/vikdemlayer.c b/src/vikdemlayer.c
index 15aaaef9..a6579d74 100644
--- a/src/vikdemlayer.c
+++ b/src/vikdemlayer.c
@@ -427,14 +427,16 @@ gboolean dem_layer_set_param ( VikDEMLayer *vdl, VikLayerSetParam *vlsp )
     {
       // Clear out old settings - if any commonalities with new settings they will have to be read again
       a_dems_list_free ( vdl->files );
+
       // Set file list so any other intermediate screen drawing updates will show currently loaded DEMs by the working thread
-      vdl->files = vlsp->data.sl;
+      // Ensure resolving of any relative path names
+      util_make_absolute_filenames ( vdl->files, vlsp->dirpath );
+
       // No need for thread if no files
       if ( vdl->files ) {
         // Thread Load
         dem_load_thread_data *dltd = g_malloc ( sizeof(dem_load_thread_data) );
         dltd->vdl = vdl;
-        dltd->vdl->files = vlsp->data.sl;
 
         a_background_thread ( BACKGROUND_POOL_LOCAL,
                               VIK_GTK_WINDOW_FROM_WIDGET(vlsp->vp),
diff --git a/src/viklayer.c b/src/viklayer.c
index ad7008f5..ceb1360d 100644
--- a/src/viklayer.c
+++ b/src/viklayer.c
@@ -384,6 +384,7 @@ void vik_layer_unmarshall_params ( VikLayer *vl, guint8 *data, gint datalen, Vik
     VikLayerSetParam vlsp;
     vlsp.vp                 = vvp;
     vlsp.is_file_operation  = FALSE;
+    vlsp.dirpath            = NULL;
     guint16 i, params_count = vik_layer_get_interface(vl->type)->params_count;
     for ( i = 0; i < params_count; i++ )
     {