Add thumbnailer support and TVMVersion and TFile are now accessable from language

src/crossthumbnailer.cpp

@@ -0,0 +1,61 @@
+#include "CrossLang.hpp"
+#include <TessesFramework/Common.hpp>
+#include <TessesFramework/Filesystem/LocalFS.hpp>
+#include <TessesFramework/Filesystem/VFS.hpp>
+#include <TessesFramework/Streams/Stream.hpp>
+#include <ios>
+#include <iostream>
+#include <fstream>
+int main(int argc,char** argv)
+{
+    std::string p = argv[0];
+    auto emptyThumb =Tesses::CrossLang::GetRealExecutablePath(p).GetParent().GetParent() / "share" / "icons" / "crosslang.png";
+    
+    if(argc < 3)
+    {
+        std::cout << "USAGE: " << argv[0] << " CRVMFILE NEWPNG" << std::endl;
+        return 1;
+    }
+    std::string crvm = argv[1];
+    std::string png = argv[2];
+
+    Tesses::Framework::Filesystem::LocalFilesystem lfs;
+    
+    if(lfs.FileExists(crvm))
+    {
+        
+            Tesses::CrossLang::TFile file;
+            auto f = lfs.OpenFile(crvm, "rb");
+    
+            file.Load(nullptr,f);
+
+            delete f;
+
+            if(file.icon >= 0 && file.icon < file.resources.size())
+            {
+                auto f2 = lfs.OpenFile(png, "wb");
+                if(f2 != nullptr)
+                {
+                    auto& icon = file.resources[file.icon];
+                    f2->WriteBlock(icon.data(),icon.size());
+                    delete f2;
+                }
+                return 0;
+            
+        }
+
+
+    }
+    if(lfs.FileExists(emptyThumb))
+    {
+        auto src = lfs.OpenFile(emptyThumb,"rb");
+        auto dest = lfs.OpenFile(png,"wb");
+        if(src != nullptr && dest != nullptr)
+        {
+            src->CopyTo(dest);
+        }
+        delete src;
+        delete dest;
+    }
+    return 0;
+}