Add ApiVersion structure to let users access api version components (…

…major, minor ...)

CMakeLists.txt

@@ -1,6 +1,9 @@
 cmake_minimum_required(VERSION 3.10)
 
 project(LDtkLoader VERSION 1.5.3)
+if (NOT PROJECT_VERSION_TWEAK)
+    set(PROJECT_VERSION_TWEAK 0)
+endif()
 
 # build options
 option(LDTK_NO_THROW             "Replace all throws by an error print and exit" OFF)

cmake/LDtkLoaderConfig.cmake.in

@@ -1,3 +1,3 @@
 include("${CMAKE_CURRENT_LIST_DIR}/LDtkLoaderTargets.cmake")
 
-message(STATUS "Found LDtkLoader @PROJECT_VERSION_MAJOR@.@PROJECT_VERSION_MINOR@.@PROJECT_VERSION_PATCH@ in ${CMAKE_CURRENT_LIST_DIR}")
+message(STATUS "Found LDtkLoader @PROJECT_VERSION@ in ${CMAKE_CURRENT_LIST_DIR}")

src/Project.cpp

@@ -174,12 +174,12 @@ void Project::load(const nlohmann::json& j, const FileLoader& file_loader, bool
 
     // compare loaded json version with the library API version and issue a warning if mismatching
     {
-        auto api_version = std::string(API_VERSION);
+        auto api_version = std::string(API_VERSION_STRING);
         auto json_major_minor = m_json_version.substr(0, m_json_version.find('.', 3));
         auto api_major_minor = api_version.substr(0, api_version.find('.', 3));
 
         if (json_major_minor != api_major_minor) {
-            std::cout << "LDtkLoader Warning: Version mismatch. LDtkLoader v" << api_major_minor
+            std::cout << "LDtkLoader Warning: Version mismatch. LDtkLoader v" << API_VERSION_STRING
                       << " may fail to load the project \"" << getFilePath().c_str()<< "\" created"
                       << " with LDtk v" << json_major_minor << ". Please make sure your software is"
                       << " up to date." << std::endl;

src/Version.hpp.in

@@ -3,5 +3,12 @@
 #pragma once
 
 namespace ldtk {
-    constexpr const char* const API_VERSION = "@PROJECT_VERSION@";
+    struct ApiVersion {
+        static constexpr unsigned Major = @PROJECT_VERSION_MAJOR@;
+        static constexpr unsigned Minor = @PROJECT_VERSION_MINOR@;
+        static constexpr unsigned Patch = @PROJECT_VERSION_PATCH@;
+        static constexpr unsigned Tweak = @PROJECT_VERSION_TWEAK@;
+    };
+
+    constexpr const char* const API_VERSION_STRING = "@PROJECT_VERSION@";
 }