Compile for MacOSX. Add path class to find data

README.md

@@ -76,6 +76,8 @@ make -j8
 ./build/OpenGlassBox
 ```
 
+For Mac OS X users a bundle application is also created inside the build folder.
+
 ## Notes concerning the portage
 
 Here are the current changes made from the original code source:

demo/Demo.cpp

@@ -13,10 +13,10 @@
 #endif
 
 //------------------------------------------------------------------------------
-bool GlassBox::initSimulation()
+bool GlassBox::initSimulation(std::string const& simfile)
 {
     m_simulation.setListener(*this);
-    if (!m_simulation.parse("data/Simulations/TestCity.txt"))
+    if (!m_simulation.parse(simfile))
         return false;
 
     // --- Paris city

demo/Display/DataPath.cpp

@@ -0,0 +1,249 @@
+//=====================================================================
+// MyLogger: A basic logger.
+// Copyright 2018 Quentin Quadrat <lecrapouille@gmail.com>
+//
+// This file is part of MyLogger.
+//
+// MyLogger is free software: you can redistribute it and/or modify it
+// under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with MyLogger.  If not, see <http://www.gnu.org/licenses/>.
+//=====================================================================
+
+#include "Display/DataPath.hpp"
+#include <sstream>
+#include <sys/stat.h>
+
+#ifdef __APPLE__
+#  include <CoreFoundation/CFBundle.h>
+#endif
+
+//------------------------------------------------------------------------------
+#ifdef __APPLE__
+std::string osx_get_resources_dir(std::string const& file)
+{
+    struct stat exists; // folder exists ?
+    std::string path;
+
+    CFURLRef resourceURL = CFBundleCopyResourcesDirectoryURL(CFBundleGetMainBundle());
+    char resourcePath[PATH_MAX];
+    if (CFURLGetFileSystemRepresentation(resourceURL, true,
+                                         reinterpret_cast<UInt8 *>(resourcePath),
+                                         PATH_MAX))
+    {
+        if (resourceURL != NULL)
+        {
+            CFRelease(resourceURL);
+        }
+
+        path = std::string(resourcePath) + "/" + file;
+        if (stat(path.c_str(), &exists) == 0)
+        {
+            return path;
+        }
+    }
+
+    path = "data/" + file;
+    if (stat(path.c_str(), &exists) == 0)
+    {
+        return path;
+    }
+
+    return file;
+}
+#endif
+
+//------------------------------------------------------------------------------
+DataPath::DataPath(std::string const& path, char const delimiter)
+  : m_delimiter(delimiter)
+{
+    add(path);
+}
+
+//------------------------------------------------------------------------------
+void DataPath::add(std::string const& path)
+{
+    if (!path.empty())
+    {
+        split(path);
+    }
+}
+
+//------------------------------------------------------------------------------
+void DataPath::reset(std::string const& path)
+{
+    m_search_paths.clear();
+    split(path);
+}
+
+//------------------------------------------------------------------------------
+void DataPath::clear()
+{
+    m_search_paths.clear();
+}
+
+//------------------------------------------------------------------------------
+void DataPath::remove(std::string const& path)
+{
+    m_search_paths.remove(path);
+}
+
+//------------------------------------------------------------------------------
+bool DataPath::exist(std::string const& path) const
+{
+    struct stat buffer;
+    return stat(path.c_str(), &buffer) == 0;
+}
+
+//------------------------------------------------------------------------------
+std::pair<std::string, bool> DataPath::find(std::string const& filename) const
+{
+    if (DataPath::exist(filename))
+        return std::make_pair(filename, true);
+
+    for (auto const& it: m_search_paths)
+    {
+        std::string file(it + filename);
+        if (DataPath::exist(file))
+            return std::make_pair(file, true);
+    }
+
+    // Not found
+    return std::make_pair(std::string(), false);
+}
+
+//------------------------------------------------------------------------------
+std::string DataPath::expand(std::string const& filename) const
+{
+    for (auto const& it: m_search_paths)
+    {
+        std::string file(it + filename);
+        if (DataPath::exist(file))
+            return file;
+    }
+
+    return filename;
+}
+
+//------------------------------------------------------------------------------
+bool DataPath::open(std::string& filename, std::ifstream& ifs, std::ios_base::openmode mode) const
+{
+    ifs.open(filename.c_str(), mode);
+    if (ifs)
+        return true;
+
+    for (auto const& it: m_search_paths)
+    {
+        std::string file(it + filename);
+        ifs.open(file.c_str(), mode);
+        if (ifs)
+        {
+            filename = file;
+            return true;
+        }
+    }
+
+    // Not found
+    return false;
+}
+
+//------------------------------------------------------------------------------
+bool DataPath::open(std::string& filename, std::ofstream& ofs, std::ios_base::openmode mode) const
+{
+    ofs.open(filename.c_str(), mode);
+    if (ofs)
+        return true;
+
+    for (auto const& it: m_search_paths)
+    {
+        std::string file(it + filename);
+        ofs.open(file.c_str(), mode);
+        if (ofs)
+        {
+            filename = file;
+            return true;
+        }
+    }
+
+    // Not found
+    return false;
+}
+
+//------------------------------------------------------------------------------
+bool DataPath::open(std::string& filename, std::fstream& fs, std::ios_base::openmode mode) const
+{
+    fs.open(filename.c_str(), mode);
+    if (fs)
+        return true;
+
+    for (auto const& it: m_search_paths)
+    {
+        std::string file(it + filename);
+        fs.open(filename.c_str(), mode);
+        if (fs)
+        {
+            filename = file;
+            return true;
+        }
+    }
+
+    // Not found
+    return false;
+}
+
+//------------------------------------------------------------------------------
+std::vector<std::string> DataPath::pathes() const
+{
+    std::vector<std::string> res;
+    res.reserve(m_search_paths.size());
+    for (auto const& it: m_search_paths)
+    {
+        res.push_back(it);
+    }
+
+    return res;
+}
+
+//------------------------------------------------------------------------------
+std::string DataPath::toString() const
+{
+    std::string string_path;
+
+    string_path += ".";
+    string_path += m_delimiter;
+
+    for (auto const& it: m_search_paths)
+    {
+        string_path += it;
+        string_path.pop_back(); // Remove the '/' char
+        string_path += m_delimiter;
+    }
+
+    return string_path;
+}
+
+//------------------------------------------------------------------------------
+void DataPath::split(std::string const& path)
+{
+    std::stringstream ss(path);
+    std::string directory;
+
+    while (std::getline(ss, directory, m_delimiter))
+    {
+        if (directory.empty())
+            continue ;
+
+        if ((*directory.rbegin() == '\\') || (*directory.rbegin() == '/'))
+            m_search_paths.push_back(directory);
+        else
+            m_search_paths.push_back(directory + "/");
+    }
+}