More GRASS direct modules

src/plugins/grass/modules/r.aspect.qgm

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE qgisgrassmodule SYSTEM "http://mrcc.com/qgisgrassmodule.dtd">
 
-<qgisgrassmodule label="Create aspect raster from DEM (digital elevation model)" module="r.slope.aspect">
+<qgisgrassmodule label="Create aspect raster from DEM (digital elevation model)" module="r.slope.aspect" direct="1">
 	<option key="elevation" />
 	<option key="aspect" />
 </qgisgrassmodule>

src/plugins/grass/modules/r.average.qgm

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE qgisgrassmodule SYSTEM "http://mrcc.com/qgisgrassmodule.dtd">
 
-<qgisgrassmodule label="Calculate average of raster within areas with the same category in a user-defined base map" module="r.average">
+<!-- direct problem: r.average is using external r.stats, r.recode -->
+<qgisgrassmodule label="Calculate average of raster within areas with the same category in a user-defined base map" module="r.average" direct="0">
 	<option key="base" />
 	<option key="cover" />
 	<flag key="c" />

src/plugins/grass/modules/r.basins.fill.qgm

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE qgisgrassmodule SYSTEM "http://mrcc.com/qgisgrassmodule.dtd">
 
-<qgisgrassmodule label="Create watershed subbasins raster" module="r.basins.fill">
+<!-- direct note: the module runs, but it was not tested with real data -->
+<qgisgrassmodule label="Create watershed subbasins raster" module="r.basins.fill" direct="1">
 	<option key="number" />
 	<option key="c_map" />
 	<option key="t_map" />

src/plugins/grass/modules/r.bilinear.qgm

@@ -1,7 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE qgisgrassmodule SYSTEM "http://mrcc.com/qgisgrassmodule.dtd">
 
-<qgisgrassmodule label="Bilinear interpolation utility for raster maps" module="r.bilinear">
+<!-- The GRASS module r.bilinear fails with fatal error: This module is deprecated. Please use 'r.resamp.interp' instead. -->
+<qgisgrassmodule label="Bilinear interpolation utility for raster maps" module="r.bilinear" direct="1">
 	<option key="input" />
 	<option key="output" />
-</qgisgrassmodule>
+</qgisgrassmodule>

src/plugins/grass/modules/r.bitpattern.qgm

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE qgisgrassmodule SYSTEM "http://mrcc.com/qgisgrassmodule.dtd">
 
-<qgisgrassmodule label="Compares bit patterns with raster" module="r.bitpattern">
+<qgisgrassmodule label="Compares bit patterns with raster" module="r.bitpattern" direct="1">
 	<flag key="q" />
 	<option key="input" />
 	<option key="input" />

src/providers/gdal/qgsgdalprovider.cpp

@@ -126,6 +126,19 @@ QgsGdalProvider::QgsGdalProvider( QString const & uri )
       setDataSourceUri( vsiPrefix + uri );
     QgsDebugMsg( QString( "Trying %1 syntax, uri= %2" ).arg( vsiPrefix ).arg( dataSourceUri() ) );
   }
+  else
+  {
+    // TODO: this constructor is also called for new rasters, in that case GDAL prints error:
+    // "ERROR 4: `pok.tif' does not exist in the file system, and is not recognised as a supported dataset name."
+    // To avoid this message, we test first if the file exists at all.
+    // This should be done better adding static create() method or something like that
+    if ( !QFile::exists( uri ) )
+    {
+      QString msg = QString( "File does not exist: %1" ).arg( dataSourceUri() );
+      appendError( ERR( msg ) );
+      return;
+    }
+  }
 
   QString gdalUri = dataSourceUri();
 

src/providers/grass/CMakeLists.txt

@@ -63,11 +63,13 @@ SET ( FUNCTIONS
   "G_allocate_raster_buf"
   "G__calloc"
   "G_col_to_easting"
+  "G_convert_dirseps_to_host"
   "G_define_flag"
   "G_define_module"
   "G_define_option"
   "G_define_standard_option"
   "G_free"
+  "G_free_raster_cats"
   "G_get_fp_range_min_max"
   "G_get_range_min_max"
   "G_get_window"