Refactor CMake configuration for ImGuiTestEngine and feature flags

- Updated the CMake configuration to use target_compile_definitions for ImGuiTestEngine, improving clarity and maintainability.
- Introduced IMGUI_TEST_ENGINE_DEFINITIONS to streamline the definition process for targets linking to ImGuiTestEngine.
- Modified feature flags in features.h to conditionally enable the native file dialog based on the YAZE_ENABLE_NFD flag, enhancing flexibility in feature management.

src/app/app.cmake

@@ -94,7 +94,9 @@ if(YAZE_ENABLE_UI_TESTS)
   if(TARGET ImGuiTestEngine)
     target_include_directories(yaze PUBLIC ${CMAKE_SOURCE_DIR}/src/lib/imgui_test_engine)
     target_link_libraries(yaze PUBLIC ImGuiTestEngine)
-    target_compile_definitions(yaze PRIVATE YAZE_ENABLE_IMGUI_TEST_ENGINE=1)
+    target_compile_definitions(yaze PRIVATE 
+      YAZE_ENABLE_IMGUI_TEST_ENGINE=1
+      ${IMGUI_TEST_ENGINE_DEFINITIONS})
   else()
     target_compile_definitions(yaze PRIVATE YAZE_ENABLE_IMGUI_TEST_ENGINE=0)
   endif()

src/app/core/features.h

@@ -39,7 +39,11 @@ class FeatureFlags {
     bool kLogToConsole = false;
 
     // Use NFD (Native File Dialog) instead of bespoke file dialog implementation.
+#if defined(YAZE_ENABLE_NFD) && YAZE_ENABLE_NFD
     bool kUseNativeFileDialog = true;
+#else
+    bool kUseNativeFileDialog = false;
+#endif
 
     // Overworld flags
     struct Overworld {

src/app/gui/input.cc

@@ -240,7 +240,7 @@ void ItemLabel(absl::string_view title, ItemLabelFlags flags) {
   const ImGuiStyle& style = ImGui::GetStyle();
   float fullWidth = ImGui::GetContentRegionAvail().x;
   float itemWidth = ImGui::CalcItemWidth() + style.ItemSpacing.x;
-  ImVec2 textSize = ImGui::CalcTextSize(title.begin(), title.end());
+  ImVec2 textSize = ImGui::CalcTextSize(title.data(), title.data() + title.size());
   ImRect textRect;
   textRect.Min = ImGui::GetCursorScreenPos();
   if (flags & ItemLabelFlag::Right) textRect.Min.x = textRect.Min.x + itemWidth;

src/util/bps.cc

@@ -7,7 +7,7 @@
 #include <cmath>
 #include <cstring>
 
-#ifdef YAZE_LIB_PNG
+#if YAZE_LIB_PNG == 1
 #include <zlib.h>
 #endif
 
@@ -16,7 +16,7 @@ namespace util {
 
 namespace {
 
-#ifdef YAZE_LIB_PNG
+#if YAZE_LIB_PNG == 1
 uint32_t crc32(const std::vector<uint8_t> &data) {
   uint32_t crc = ::crc32(0L, Z_NULL, 0);
   return ::crc32(crc, data.data(), data.size());