GRASS raster support works with MSVC

- let user know when a grass raster layer could not be inserted
- some fixes for the GRASS DLL build
- add grass_I (needed by GDAL's GRASS driver)

builds with current GDAL + http://trac.osgeo.org/gdal/ticket/1983
and current GRASS CVS (one bug fix should be applied soon).




git-svn-id: http://svn.osgeo.org/qgis/trunk@7377 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: jef

src/plugins/grass/qgsgrassplugin.cpp

@@ -414,6 +414,10 @@ void QgsGrassPlugin::addRaster()
 
     //qGisInterface->addRasterLayer( uri );
     QgsRasterLayer *layer = new QgsRasterLayer( uri, sel->map );
+    if( !layer->isValid() ) {
+      // let the user know something went wrong - addRasterLayer cleans up
+      QMessageBox::warning( 0, tr("Warning"), tr("Could not add raster layer: " ) + uri);
+    }
     qGisInterface->addRasterLayer(layer);
 
     mCanvas->refresh(); 

src/providers/grass/provider.cpp

@@ -27,21 +27,12 @@
 #include "qgsfield.h"
 #include "qgsrect.h"
 
-#ifdef _MSC_VER
-// enables prototype in GRASS headers
-#define __STDC__ 1
-#endif
-
 extern "C" {
 #include <grass/gis.h>
 #include <grass/dbmi.h>
 #include <grass/Vect.h>
 }
 
-#ifdef _MSC_VER
-#undef __STDC__
-#endif
-
 #include "qgsgrass.h"
 #include "qgsgrassprovider.h"
 

src/providers/grass/vc/CMakeLists.txt

@@ -6,8 +6,9 @@ ADD_DEFINITIONS(
   -I${CMAKE_CURRENT_SOURCE_DIR}
   -I${GRASS_PREFIX}/lib/db/dbmi_base
   -I${ZLIB_INCLUDE_DIR}
-  -D__MINGW32__)
-    
+  -D__MINGW32__
+  -Dpopen=G_popen
+  -Dpclose=G_pclose)
 
 ADD_LIBRARY (xdr STATIC
   xdr.c
@@ -396,6 +397,7 @@ ADD_LIBRARY (grass_dbmibase SHARED
   ${GRASS_PREFIX}/lib/db/dbmi_base/xdrvalue.c
   ${GRASS_PREFIX}/lib/db/dbmi_base/zero.c
 )
+SET_SOURCE_FILES_PROPERTIES(${GRASS_PREFIX}/lib/db/dbmi_base/xdr.c PROPERTIES COMPILE_FLAGS -U__MINGW32__)
 SET_TARGET_PROPERTIES(grass_dbmibase PROPERTIES LINK_FLAGS "/def:${CMAKE_CURRENT_SOURCE_DIR}/grass_dbmibase.def")
 TARGET_LINK_LIBRARIES(grass_dbmibase grass_gis)
 
@@ -408,7 +410,7 @@ ADD_LIBRARY (grass_linkm SHARED
   ${GRASS_PREFIX}/lib/linkm/oom.c
 )
 SET_TARGET_PROPERTIES(grass_linkm PROPERTIES LINK_FLAGS "/def:${CMAKE_CURRENT_SOURCE_DIR}/grass_linkm.def")
-  
+
 ADD_LIBRARY (grass_dbmiclient SHARED
   ${GRASS_PREFIX}/lib/db/dbmi_client/column.c
   ${GRASS_PREFIX}/lib/db/dbmi_client/copy_tab.c
@@ -451,6 +453,46 @@ ADD_LIBRARY (grass_dbmiclient SHARED
 )
 SET_TARGET_PROPERTIES(grass_dbmiclient PROPERTIES LINK_FLAGS "/def:${CMAKE_CURRENT_SOURCE_DIR}/grass_dbmiclient.def")
 TARGET_LINK_LIBRARIES(grass_dbmiclient grass_dbmibase)
+
+ADD_LIBRARY (grass_I SHARED
+  ${GRASS_PREFIX}/lib/imagery/alloc.c
+  ${GRASS_PREFIX}/lib/imagery/ask_group.c
+  ${GRASS_PREFIX}/lib/imagery/c_assign.c
+  ${GRASS_PREFIX}/lib/imagery/c_begin.c
+  ${GRASS_PREFIX}/lib/imagery/c_clear.c
+  ${GRASS_PREFIX}/lib/imagery/c_distinct.c
+  ${GRASS_PREFIX}/lib/imagery/c_exec.c
+  ${GRASS_PREFIX}/lib/imagery/c_execmem.c
+  ${GRASS_PREFIX}/lib/imagery/c_means.c
+  ${GRASS_PREFIX}/lib/imagery/c_merge.c
+  ${GRASS_PREFIX}/lib/imagery/c_nclasses.c
+  ${GRASS_PREFIX}/lib/imagery/c_point.c
+  ${GRASS_PREFIX}/lib/imagery/c_reassign.c
+  ${GRASS_PREFIX}/lib/imagery/c_reclass.c
+  ${GRASS_PREFIX}/lib/imagery/c_sep.c
+  ${GRASS_PREFIX}/lib/imagery/c_sig.c
+  ${GRASS_PREFIX}/lib/imagery/c_sum2.c
+  ${GRASS_PREFIX}/lib/imagery/eol.c
+  ${GRASS_PREFIX}/lib/imagery/find.c
+  ${GRASS_PREFIX}/lib/imagery/fopen.c
+  ${GRASS_PREFIX}/lib/imagery/georef.c
+  ${GRASS_PREFIX}/lib/imagery/group.c
+  ${GRASS_PREFIX}/lib/imagery/list_gp.c
+  ${GRASS_PREFIX}/lib/imagery/list_subgp.c
+  ${GRASS_PREFIX}/lib/imagery/loc_info.c
+  ${GRASS_PREFIX}/lib/imagery/ls_groups.c
+  ${GRASS_PREFIX}/lib/imagery/points.c
+  ${GRASS_PREFIX}/lib/imagery/ref.c
+  ${GRASS_PREFIX}/lib/imagery/sig.c
+  ${GRASS_PREFIX}/lib/imagery/sigfile.c
+  ${GRASS_PREFIX}/lib/imagery/sigset.c
+  ${GRASS_PREFIX}/lib/imagery/sigsetfile.c
+  ${GRASS_PREFIX}/lib/imagery/target.c
+  ${GRASS_PREFIX}/lib/imagery/title.c
+  ${GRASS_PREFIX}/lib/imagery/var.c
+)
+SET_TARGET_PROPERTIES(grass_I PROPERTIES LINK_FLAGS "/def:${CMAKE_CURRENT_SOURCE_DIR}/grass_I.def")
+TARGET_LINK_LIBRARIES(grass_I grass_gis)
 
 INSTALL(TARGETS
   grass_gis
@@ -462,5 +504,6 @@ INSTALL(TARGETS
   grass_dbmibase
   grass_linkm
   grass_dbmiclient
+  grass_I
   RUNTIME DESTINATION ${QGIS_BIN_DIR}
   ARCHIVE DESTINATION lib)

src/providers/grass/vc/dirent.h

@@ -83,6 +83,7 @@ typedef struct DIR {
 static DIR *opendir (const char *dirname);
 static struct dirent *readdir (DIR *dirp);
 static int closedir (DIR *dirp);
+static void rewinddir (DIR *dirp);
 
 
 /* use the new safe string functions introduced in Visual Studio 2005 */
@@ -222,6 +223,31 @@ readdir(
   return &dirp->current;
 }
 
+/*
+ * Rewind the directory
+ *
+ */
+static void
+rewinddir(
+    DIR *dirp)
+{
+  assert (dirp != NULL);
+ 
+  /* release search handle */
+  if (dirp->search_handle != INVALID_HANDLE_VALUE) {
+    FindClose (dirp->search_handle);
+    dirp->search_handle = INVALID_HANDLE_VALUE;
+  }
+
+  /* open stream and retrieve first file */
+  dirp->search_handle = FindFirstFile (dirp->patt, &dirp->current.data);
+  if (dirp->search_handle == INVALID_HANDLE_VALUE) {
+    return;
+  }
+
+  /* there is an un-processed directory entry in memory now */
+  dirp->cached = 1;
+}
 
 /*
  * Close directory stream opened by opendir() function.  Close of the

src/providers/grass/vc/grass_gis.def

@@ -1,8 +1,5 @@
 LIBRARY grass_gis.dll
 EXPORTS
-;	xdrmem_create @ 1
-;	DllMainCRTStartup@12 @ 2
-;	FindAtomA@4 @ 3 DATA
 	G_3dview_warning @ 4
 	G__ @ 5 DATA
 	G__allocate_null_bits @ 6
@@ -178,7 +175,7 @@ EXPORTS
 	G_color_name @ 175
 	G_color_values @ 176
 	G_colors_count @ 177
-	G_command_history @ 178
+;	G_command_history @ 178
 	G_compare_projections @ 179
 	G_construct_default_range @ 180
 	G_convert_dirseps_from_host @ 181

src/providers/grass/vc/rpc/types.h

@@ -96,4 +96,9 @@ typedef unsigned long u_long;
 typedef unsigned short u_short;
 #endif
 
+#ifdef _MSC_VER
+#include <basetsd.h>
+typedef SSIZE_T ssize_t;
+#endif //_MSC_VER
+
 #endif /* ndef __TYPES_RPC_HEADER__ */

src/providers/grass/vc/unistd.h

@@ -1 +1,12 @@
-#include <io.h>	
+#include <io.h>
+#include <windows.h>
+#include <process.h>
+#include <direct.h>
+
+#define getpid() GetCurrentProcessId()
+#define chmod(f,m)
+#define rmdir _rmdir
+
+#ifndef S_ISDIR
+#define S_ISDIR(x) (((x) & S_IFMT) == S_IFDIR)
+#endif