Replaced std::string filenames with vsg::Path

examples/app/vsgmultigpu/vsgmultigpu.cpp

@@ -184,7 +184,7 @@ int main(int argc, char** argv)
     if (arguments.read("--or")) windowTraits->overrideRedirect = true;
     arguments.read("--display", windowTraits->display);
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
+    auto pathFilename = arguments.value<vsg::Path>("", "-p");
     auto horizonMountainHeight = arguments.value(-1.0, "--hmh");
     auto powerWall = arguments.read({"--power-wall", "--pw"});
     auto sharedScene = !arguments.read({"--no-shared"});
@@ -329,7 +329,7 @@ int main(int argc, char** argv)
     // add close handler to respond to the close window button and pressing escape
     viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-    if (pathFilename.empty())
+    if (!pathFilename)
     {
         auto trackball = vsg::Trackball::create(master_camera);
 

examples/app/vsgskybox/vsgskybox.cpp

@@ -187,10 +187,9 @@ int main(int argc, char** argv)
     arguments.read("--display", windowTraits->display);
     arguments.read("--samples", windowTraits->samples);
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
     auto horizonMountainHeight = arguments.value(0.0, "--hmh");
-    auto skyboxFilename = arguments.value(vsg::Path(), "--skybox");
-    auto outputFilename = arguments.value(vsg::Path(), "-o");
+    auto skyboxFilename = arguments.value<vsg::Path>("", "--skybox");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 

examples/commands/vsgexecutecommands/vsgexecutecommands.cpp

@@ -168,7 +168,7 @@ int main(int argc, char** argv)
     bool multiThreading = arguments.read("--mt");
     bool useExecuteCommands = !arguments.read("--no-ec"); // by default use ExecuteCommands, but allow it to be disabled using --no-ec
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
+    auto pathFilename = arguments.value<vsg::Path>("", "-p");
 
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 
@@ -279,7 +279,7 @@ int main(int argc, char** argv)
     // assign a CloseHandler to the Viewer to respond to pressing Escape or the window close button
     viewer->addEventHandlers({vsg::CloseHandler::create(viewer)});
 
-    if (pathFilename.empty())
+    if (!pathFilename)
     {
         viewer->addEventHandler(vsg::Trackball::create(camera));
     }

examples/commands/vsgocclusionquery/vsgocclusionquery.cpp

@@ -56,7 +56,7 @@ int main(int argc, char** argv)
     arguments.read("--display", windowTraits->display);
     arguments.read("--samples", windowTraits->samples);
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
+    auto pathFilename = arguments.value<vsg::Path>("", "-p");
     if (arguments.read("--rgb")) options->mapRGBtoRGBAHint = false;
 
     if (int log_level = 0; arguments.read("--log-level", log_level)) vsg::Logger::instance()->level = vsg::Logger::Level(log_level);
@@ -125,7 +125,7 @@ int main(int argc, char** argv)
     // add close handler to respond to the close window button and pressing escape
     viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-    if (pathFilename.empty())
+    if (!pathFilename)
     {
         viewer->addEventHandler(vsg::Trackball::create(camera, ellipsoidModel));
     }

examples/commands/vsgtimestamps/vsgtimestamps.cpp

@@ -56,7 +56,7 @@ int main(int argc, char** argv)
     arguments.read("--display", windowTraits->display);
     arguments.read("--samples", windowTraits->samples);
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
+    auto pathFilename = arguments.value<vsg::Path>("", "-p");
     if (arguments.read("--rgb")) options->mapRGBtoRGBAHint = false;
 
     if (int log_level = 0; arguments.read("--log-level", log_level)) vsg::Logger::instance()->level = vsg::Logger::Level(log_level);
@@ -144,7 +144,7 @@ int main(int argc, char** argv)
     // add close handler to respond to the close window button and pressing escape
     viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-    if (pathFilename.empty())
+    if (!pathFilename)
     {
         viewer->addEventHandler(vsg::Trackball::create(camera, ellipsoidModel));
     }

examples/core/vsgallocator/vsgallocator.cpp

@@ -155,7 +155,7 @@ int main(int argc, char** argv)
         arguments.read("--samples", windowTraits->samples);
         bool reportAtEndOfAllFrames = arguments.read("--report");
         auto numFrames = arguments.value(-1, "-f");
-        auto pathFilename = arguments.value(std::string(), "-p");
+        auto pathFilename = arguments.value<vsg::Path>("", "-p");
         auto loadLevels = arguments.value(0, "--load-levels");
         auto horizonMountainHeight = arguments.value(0.0, "--hmh");
         auto maxPagedLOD = arguments.value(0, "--maxPagedLOD");
@@ -277,7 +277,7 @@ int main(int argc, char** argv)
             // add close handler to respond to the close window button and pressing escape
             viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-            if (pathFilename.empty())
+            if (!pathFilename)
             {
                 viewer->addEventHandler(vsg::Trackball::create(camera, ellipsoidModel));
             }

examples/io/vsgio/vsgio.cpp

@@ -42,7 +42,7 @@ int main(int argc, char** argv)
     auto numLevels = arguments.value(4u, {"--levels", "-l"});
     auto useQuadGroup = arguments.read("-q");
     auto inputFilename = arguments.value(std::string(), "-i");
-    auto outputFilename = arguments.value(std::string(), "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 
@@ -106,15 +106,15 @@ int main(int argc, char** argv)
 
     if (object)
     {
-        if (outputFilename.empty())
+        if (outputFilename)
         {
-            // write graph to console
-            vsg::VSG io;
-            io.write(object, std::cout);
+            vsg::write(object, outputFilename);
         }
         else
         {
-            vsg::write(object, outputFilename);
+            // write graph to console
+            vsg::VSG io;
+            io.write(object, std::cout);
         }
     }
 

examples/nodes/vsggroups/vsggroups.cpp

@@ -187,8 +187,8 @@ int main(int argc, char** argv)
     auto numTraversals = arguments.value(10u, {"-t", "--traversals"});
     auto type = arguments.value(std::string("vsg::Group"), "--type");
     auto quiet = arguments.read("-q");
-    auto inputFilename = arguments.value(std::string(""), "-i");
-    auto outputFilename = arguments.value(std::string(""), "-o");
+    auto inputFilename = arguments.value<vsg::Path>("", "-i");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
     vsg::ref_ptr<vsg::RecordTraversal> vsg_recordTraversal(arguments.read("-d") ? new vsg::RecordTraversal : nullptr);
     vsg::ref_ptr<VsgConstVisitor> vsg_ConstVisitor(arguments.read("-c") ? new VsgConstVisitor : nullptr);
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
@@ -202,7 +202,7 @@ int main(int argc, char** argv)
     unsigned int numNodes = 0;
     unsigned int numBytes = 0;
 
-    if (!inputFilename.empty())
+    if (inputFilename)
     {
         vsg_root = vsg::read_cast<vsg::Node>(inputFilename);
 
@@ -278,7 +278,7 @@ int main(int argc, char** argv)
 
     clock::time_point after_traversal = clock::now();
 
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(vsg_root, outputFilename);
     }

examples/nodes/vsglights/vsglights.cpp

@@ -80,7 +80,7 @@ int main(int argc, char** argv)
 
     // bool useStagingBuffer = arguments.read({"--staging-buffer", "-s"});
 
-    auto outputFilename = arguments.value<std::string>("", "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     bool add_ambient = true;
     bool add_directional = true;
@@ -208,7 +208,7 @@ int main(int argc, char** argv)
     }
 
     // write out scene if required
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(scene, outputFilename, options);
         return 0;

examples/nodes/vsgpagedlod/vsgpagedlod.cpp

@@ -41,9 +41,9 @@ int main(int argc, char** argv)
         arguments.read("--screen", windowTraits->screenNum);
         arguments.read("--display", windowTraits->display);
         arguments.read("--samples", windowTraits->samples);
-        auto outputFilename = arguments.value(std::string(), "-o");
+        auto outputFilename = arguments.value<vsg::Path>("", "-o");
         auto numFrames = arguments.value(-1, "-f");
-        auto pathFilename = arguments.value(std::string(), "-p");
+        auto pathFilename = arguments.value<vsg::Path>("", "-p");
         auto maxPagedLOD = arguments.value(0, "--maxPagedLOD");
         auto loadLevels = arguments.value(0, "--load-levels");
         auto horizonMountainHeight = arguments.value(0.0, "--hmh");
@@ -164,7 +164,7 @@ int main(int argc, char** argv)
         // add close handler to respond to the close window button and pressing escape
         viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-        if (pathFilename.empty())
+        if (!pathFilename)
         {
             if (ellipsoidModel)
             {

examples/nodes/vsgtiledatabase/vsgtiledatabase.cpp

@@ -32,9 +32,9 @@ int main(int argc, char** argv)
     arguments.read("--screen", windowTraits->screenNum);
     arguments.read("--display", windowTraits->display);
     arguments.read("--samples", windowTraits->samples);
-    auto outputFilename = arguments.value(std::string(), "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
     auto numFrames = arguments.value(-1, "-f");
-    auto pathFilename = arguments.value(std::string(), "-p");
+    auto pathFilename = arguments.value<vsg::Path>("", "-p");
     auto maxPagedLOD = arguments.value(0, "--maxPagedLOD");
     auto loadLevels = arguments.value(0, "--load-levels");
     auto horizonMountainHeight = arguments.value(0.0, "--hmh");
@@ -124,7 +124,7 @@ int main(int argc, char** argv)
 
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(vsg_scene, outputFilename);
         return 0;
@@ -185,7 +185,7 @@ int main(int argc, char** argv)
     // add close handler to respond to the close window button and pressing escape
     viewer->addEventHandler(vsg::CloseHandler::create(viewer));
 
-    if (pathFilename.empty())
+    if (pathFilename)
     {
         if (ellipsoidModel)
         {

examples/nodes/vsgtransform/vsgtransform.cpp

@@ -38,7 +38,7 @@ int main(int argc, char** argv)
 
     // bool useStagingBuffer = arguments.read({"--staging-buffer", "-s"});
 
-    auto outputFilename = arguments.value<std::string>("", "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     if (argc<=1)
     {
@@ -83,7 +83,7 @@ int main(int argc, char** argv)
     }
 
     // write out scene if required
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(scene, outputFilename, options);
         return 0;

examples/state/vsgstateswitch/vsgstateswitch.cpp

@@ -112,7 +112,7 @@ int main(int argc, char** argv)
 
     bool insertStateSwitch = !arguments.read("-n"); // no replacement of GraphicsPipeline, so assume loaded scene graph has required vsg::StateSwitch
     bool separateRenderGraph = arguments.read("-s");
-    auto outputFilename = arguments.value<std::string>("", "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 
@@ -147,7 +147,7 @@ int main(int argc, char** argv)
         scenegraph->accept(rgp);
     }
 
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(scenegraph, outputFilename, options);
         return 0;

examples/utils/vsgbuilder/vsgbuilder.cpp

@@ -48,7 +48,7 @@ int main(int argc, char** argv)
 
     if (arguments.read("--shared")) options->sharedObjects = vsg::SharedObjects::create();
 
-    auto outputFilename = arguments.value<std::string>("", "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
 
     bool floatColors = !arguments.read("--ubvec4-colors");
     stateInfo.wireframe = arguments.read("--wireframe");
@@ -257,7 +257,7 @@ int main(int argc, char** argv)
     }
 
     // write out scene if required
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         vsg::write(scene, outputFilename, options);
         return 0;

examples/vk/vsgcompute/vsgcompute.cpp

@@ -11,7 +11,7 @@ int main(int argc, char** argv)
     auto debugLayer = arguments.read({"--debug", "-d"});
     auto apiDumpLayer = arguments.read({"--api", "-a"});
     auto workgroupSize = arguments.value(32, "-w");
-    auto outputFilename = arguments.value<std::string>("", "-o");
+    auto outputFilename = arguments.value<vsg::Path>("", "-o");
     auto outputAsFloat = arguments.read("-f");
     if (arguments.errors()) return arguments.writeErrorMessages(std::cerr);
 
@@ -103,7 +103,7 @@ int main(int argc, char** argv)
     auto time = std::chrono::duration<float, std::chrono::milliseconds::period>(std::chrono::steady_clock::now() - startTime).count();
     std::cout << "Time to run commands " << time << "ms" << std::endl;
 
-    if (!outputFilename.empty())
+    if (outputFilename)
     {
         // Map the buffer memory and assign as a vec4Array2D that will automatically unmap itself on destruction.
         auto image = vsg::MappedData<vsg::vec4Array2D>::create(bufferMemory, 0, 0, vsg::Data::Properties{VK_FORMAT_R32G32B32A32_SFLOAT}, width, height); // deviceMemory, offset, flags an d dimensions