Exception remove string.

16 files changed, 69 insertions, 69 deletions

diff --git a/src/platform/graphics/Geometry.cpp b/src/platform/graphics/Geometry.cpp
index b9503c4e..2c842a6e 100644
--- a/src/platform/graphics/Geometry.cpp
+++ b/src/platform/graphics/Geometry.cpp
@@ -15,9 +15,9 @@ bool IGeometry::StrokeContains(float width, const Point& point) {
 
 std::unique_ptr<IGeometry> IGeometry::CreateStrokeGeometry(
     [[maybe_unused]] float width) {
-  throw PlatformUnsupportedException(GetPlatformId(), u"CreateStrokeGeometry",
-                                     u"Create stroke geometry of a geometry is "
-                                     u"not supported on this platform.");
+  throw PlatformUnsupportedException(GetPlatformIdUtf8(), "CreateStrokeGeometry",
+                                     "Create stroke geometry of a geometry is "
+                                     "not supported on this platform.");
 }
 
 void IGeometryBuilder::RelativeMoveTo(const Point& offset) {
@@ -227,7 +227,7 @@ void IGeometryBuilder::ParseAndApplySvgPathData(StringView path_d) {
 
   auto read_number = [&] {
     if (read_spaces()) {
-      throw Exception(u"Unexpected eof of svg path data command.");
+      throw Exception("Unexpected eof of svg path data command.");
     }
 
     if (path_d[position] == ',') {
@@ -239,7 +239,7 @@ void IGeometryBuilder::ParseAndApplySvgPathData(StringView path_d) {
     auto result = path_d.substr(position).ParseToFloat(
         &processed_count, StringToNumberFlags::kAllowTrailingJunk);
 
-    if (std::isnan(result)) throw Exception(u"Invalid svg path data number.");
+    if (std::isnan(result)) throw Exception("Invalid svg path data number.");
 
     position += processed_count;
 
@@ -415,7 +415,7 @@ void IGeometryBuilder::ParseAndApplySvgPathData(StringView path_d) {
         CloseFigure(true);
         break;
       default:
-        throw Exception(u"Invalid svg path command.");
+        throw Exception("Invalid svg path command.");
     }
     return true;
   };
diff --git a/src/platform/graphics/SvgGeometryBuilderMixin.cpp b/src/platform/graphics/SvgGeometryBuilderMixin.cpp
index bf5275c5..73290da5 100644
--- a/src/platform/graphics/SvgGeometryBuilderMixin.cpp
+++ b/src/platform/graphics/SvgGeometryBuilderMixin.cpp
@@ -10,8 +10,8 @@ SvgGeometryBuilderMixin::~SvgGeometryBuilderMixin() {}
 
 Point SvgGeometryBuilderMixin::GetCurrentPosition() {
   throw PlatformUnsupportedException(
-      GetPlatformId(), u"GetCurrentPosition",
-      u"Svg-based geometry does not support get current position.");
+      GetPlatformIdUtf8(), "GetCurrentPosition",
+      "Svg-based geometry does not support get current position.");
 }
 
 void SvgGeometryBuilderMixin::MoveTo(const Point& point) {
diff --git a/src/platform/graphics/cairo/CairoGeometry.cpp b/src/platform/graphics/cairo/CairoGeometry.cpp
index 2d415884..1f680c34 100644
--- a/src/platform/graphics/cairo/CairoGeometry.cpp
+++ b/src/platform/graphics/cairo/CairoGeometry.cpp
@@ -72,7 +72,7 @@ std::unique_ptr<IGeometry> CairoGeometry::Transform(const Matrix& matrix) {
 }
 
 std::unique_ptr<IGeometry> CairoGeometry::CreateStrokeGeometry(float width) {
-  throw Exception(u"Not implemented");
+  throw Exception("Not implemented");
 }
 
 CairoGeometryBuilder::CairoGeometryBuilder(CairoGraphicsFactory* factory)
diff --git a/src/platform/graphics/cairo/CairoImageFactory.cpp b/src/platform/graphics/cairo/CairoImageFactory.cpp
index 912226d9..ff922e77 100644
--- a/src/platform/graphics/cairo/CairoImageFactory.cpp
+++ b/src/platform/graphics/cairo/CairoImageFactory.cpp
@@ -207,19 +207,19 @@ std::unique_ptr<IImage> CairoImageFactory::DecodeFromStream(
     return DecodePng(GetCairoGraphicsFactory(), stream);
   }
 
-  throw Exception(u"Image format unknown. Currently only support png.");
+  throw Exception("Image format unknown. Currently only support png.");
 }
 
 void CairoImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
                                        ImageFormat format, float quality) {
-  auto cairo_image = CheckPlatform<CairoImage>(image, GetPlatformId());
+  auto cairo_image = CheckPlatform<CairoImage>(image, GetPlatformIdUtf8());
 
   if (format == ImageFormat::Png) {
     EncodePng(cairo_image->GetCairoSurface(), stream);
     return;
   }
 
-  throw Exception(u"Not implemented. Currently only support png.");
+  throw Exception("Not implemented. Currently only support png.");
 }
 
 std::unique_ptr<IImage> CairoImageFactory::CreateBitmap(int width, int height) {
diff --git a/src/platform/graphics/cairo/CairoPainter.cpp b/src/platform/graphics/cairo/CairoPainter.cpp
index b9babaa2..94111098 100644
--- a/src/platform/graphics/cairo/CairoPainter.cpp
+++ b/src/platform/graphics/cairo/CairoPainter.cpp
@@ -56,7 +56,7 @@ void CairoPainter::Clear(const Color& color) {
 void CairoPainter::DrawLine(const Point& start, const Point& end, IBrush* brush,
                             float width) {
   CheckValidation();
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
   cairo_save(cairo_);
   cairo_set_source(cairo_, cairo_pattern);
@@ -71,7 +71,7 @@ void CairoPainter::DrawLine(const Point& start, const Point& end, IBrush* brush,
 void CairoPainter::StrokeRectangle(const Rect& rectangle, IBrush* brush,
                                    float width) {
   CheckValidation();
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
   cairo_save(cairo_);
   cairo_set_source(cairo_, cairo_pattern);
@@ -85,7 +85,7 @@ void CairoPainter::StrokeRectangle(const Rect& rectangle, IBrush* brush,
 
 void CairoPainter::FillRectangle(const Rect& rectangle, IBrush* brush) {
   CheckValidation();
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
   cairo_save(cairo_);
   cairo_set_source(cairo_, cairo_pattern);
@@ -99,7 +99,7 @@ void CairoPainter::FillRectangle(const Rect& rectangle, IBrush* brush) {
 void CairoPainter::StrokeEllipse(const Rect& outline_rect, IBrush* brush,
                                  float width) {
   CheckValidation();
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
   cairo_save(cairo_);
   cairo_set_source(cairo_, cairo_pattern);
@@ -122,7 +122,7 @@ void CairoPainter::StrokeEllipse(const Rect& outline_rect, IBrush* brush,
 
 void CairoPainter::FillEllipse(const Rect& outline_rect, IBrush* brush) {
   CheckValidation();
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
   cairo_save(cairo_);
   cairo_set_source(cairo_, cairo_pattern);
@@ -145,8 +145,8 @@ void CairoPainter::FillEllipse(const Rect& outline_rect, IBrush* brush) {
 void CairoPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
                                   float width) {
   CheckValidation();
-  auto cairo_geometry = CheckPlatform<CairoGeometry>(geometry, GetPlatformId());
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_geometry = CheckPlatform<CairoGeometry>(geometry, GetPlatformIdUtf8());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
 
   auto cairo_path = cairo_geometry->GetCairoPath();
   auto cairo_pattern = cairo_brush->GetCairoPattern();
@@ -162,8 +162,8 @@ void CairoPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
 
 void CairoPainter::FillGeometry(IGeometry* geometry, IBrush* brush) {
   CheckValidation();
-  auto cairo_geometry = CheckPlatform<CairoGeometry>(geometry, GetPlatformId());
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_geometry = CheckPlatform<CairoGeometry>(geometry, GetPlatformIdUtf8());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
 
   auto cairo_path = cairo_geometry->GetCairoPath();
   auto cairo_pattern = cairo_brush->GetCairoPattern();
@@ -181,9 +181,9 @@ void CairoPainter::DrawText(const Point& offset, ITextLayout* text_layout,
   CheckValidation();
 
   auto pango_text_layout =
-      CheckPlatform<PangoTextLayout>(text_layout, GetPlatformId());
+      CheckPlatform<PangoTextLayout>(text_layout, GetPlatformIdUtf8());
 
-  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformId());
+  auto cairo_brush = CheckPlatform<CairoBrush>(brush, GetPlatformIdUtf8());
   auto cairo_pattern = cairo_brush->GetCairoPattern();
 
   cairo_save(cairo_);
@@ -196,7 +196,7 @@ void CairoPainter::DrawText(const Point& offset, ITextLayout* text_layout,
 
 void CairoPainter::DrawImage(const Point& offset, IImage* image) {
   CheckValidation();
-  auto cairo_image = CheckPlatform<CairoImage>(image, GetPlatformId());
+  auto cairo_image = CheckPlatform<CairoImage>(image, GetPlatformIdUtf8());
   cairo_save(cairo_);
   cairo_set_source_surface(cairo_, cairo_image->GetCairoSurface(), 0, 0);
   cairo_new_path(cairo_);
@@ -251,7 +251,7 @@ void CairoPainter::EndDraw() {
 
 void CairoPainter::CheckValidation() {
   if (!valid_) {
-    throw ReuseException(u"Painter already ended drawing.");
+    throw ReuseException("Painter already ended drawing.");
   }
 }
 }  // namespace cru::platform::graphics::cairo
diff --git a/src/platform/graphics/cairo/PangoTextLayout.cpp b/src/platform/graphics/cairo/PangoTextLayout.cpp
index 8dfd59d5..746056e2 100644
--- a/src/platform/graphics/cairo/PangoTextLayout.cpp
+++ b/src/platform/graphics/cairo/PangoTextLayout.cpp
@@ -24,7 +24,7 @@ PangoTextLayout::PangoTextLayout(CairoGraphicsFactory* factory,
                                  std::shared_ptr<IFont> font)
     : CairoResource(factory) {
   Expects(font);
-  font_ = CheckPlatform<PangoFont>(font, GetPlatformId());
+  font_ = CheckPlatform<PangoFont>(font, GetPlatformIdUtf8());
   pango_layout_ = pango_cairo_create_layout(factory->GetDefaultCairo());
   pango_layout_set_font_description(pango_layout_,
                                     font_->GetPangoFontDescription());
@@ -44,7 +44,7 @@ std::shared_ptr<IFont> PangoTextLayout::GetFont() { return font_; }
 
 void PangoTextLayout::SetFont(std::shared_ptr<IFont> font) {
   Expects(font);
-  font_ = CheckPlatform<PangoFont>(font, GetPlatformId());
+  font_ = CheckPlatform<PangoFont>(font, GetPlatformIdUtf8());
   pango_layout_set_font_description(pango_layout_,
                                     font_->GetPangoFontDescription());
 }
diff --git a/src/platform/graphics/direct2d/Geometry.cpp b/src/platform/graphics/direct2d/Geometry.cpp
index a2377400..45971b76 100644
--- a/src/platform/graphics/direct2d/Geometry.cpp
+++ b/src/platform/graphics/direct2d/Geometry.cpp
@@ -17,7 +17,7 @@ D2DGeometryBuilder::D2DGeometryBuilder(DirectGraphicsFactory* factory)
 
 void D2DGeometryBuilder::CheckValidation() {
   if (!IsValid())
-    throw ReuseException(u"The geometry builder is already disposed.");
+    throw ReuseException("The geometry builder is already disposed.");
 }
 
 Point D2DGeometryBuilder::GetCurrentPosition() {
diff --git a/src/platform/graphics/direct2d/ImageFactory.cpp b/src/platform/graphics/direct2d/ImageFactory.cpp
index 113f70c8..b9e9221a 100644
--- a/src/platform/graphics/direct2d/ImageFactory.cpp
+++ b/src/platform/graphics/direct2d/ImageFactory.cpp
@@ -67,14 +67,14 @@ GUID ConvertImageFormatToGUID(ImageFormat format) {
       format_guid = GUID_ContainerFormatGif;
       break;
     default:
-      throw Exception(u"Unknown image format");
+      throw Exception("Unknown image format");
   }
   return format_guid;
 }
 
 void WinImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
                                      ImageFormat format, float quality) {
-  auto direct_image = CheckPlatform<Direct2DImage>(image, GetPlatformId());
+  auto direct_image = CheckPlatform<Direct2DImage>(image, GetPlatformIdUtf8());
 
   Microsoft::WRL::ComPtr<IStream> com_stream(
       platform::win::ConvertStreamToComStream(stream));
@@ -139,8 +139,8 @@ void WinImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
 }
 
 std::unique_ptr<IImage> WinImageFactory::CreateBitmap(int width, int height) {
-  if (width <= 0) throw Exception(u"Bitmap width must be greater than 0.");
-  if (height <= 0) throw Exception(u"Bitmap height must be greater than 0.");
+  if (width <= 0) throw Exception("Bitmap width must be greater than 0.");
+  if (height <= 0) throw Exception("Bitmap height must be greater than 0.");
 
   auto graphics_factory = GetDirectFactory();
 
diff --git a/src/platform/graphics/direct2d/Painter.cpp b/src/platform/graphics/direct2d/Painter.cpp
index a505e46e..29ddcabb 100644
--- a/src/platform/graphics/direct2d/Painter.cpp
+++ b/src/platform/graphics/direct2d/Painter.cpp
@@ -55,7 +55,7 @@ void D2DDeviceContextPainter::Clear(const Color& color) {
 void D2DDeviceContextPainter::DrawLine(const Point& start, const Point& end,
                                        IBrush* brush, float width) {
   CheckValidation();
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->DrawLine(Convert(start), Convert(end),
                             b->GetD2DBrushInterface(), width);
 }
@@ -63,7 +63,7 @@ void D2DDeviceContextPainter::DrawLine(const Point& start, const Point& end,
 void D2DDeviceContextPainter::StrokeRectangle(const Rect& rectangle,
                                               IBrush* brush, float width) {
   CheckValidation();
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->DrawRectangle(Convert(rectangle), b->GetD2DBrushInterface(),
                                  width);
 }
@@ -71,14 +71,14 @@ void D2DDeviceContextPainter::StrokeRectangle(const Rect& rectangle,
 void D2DDeviceContextPainter::FillRectangle(const Rect& rectangle,
                                             IBrush* brush) {
   CheckValidation();
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->FillRectangle(Convert(rectangle), b->GetD2DBrushInterface());
 }
 
 void D2DDeviceContextPainter::StrokeEllipse(const Rect& outline_rect,
                                             IBrush* brush, float width) {
   CheckValidation();
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->DrawEllipse(
       D2D1::Ellipse(Convert(outline_rect.GetCenter()),
                     outline_rect.width / 2.0f, outline_rect.height / 2.0f),
@@ -87,7 +87,7 @@ void D2DDeviceContextPainter::StrokeEllipse(const Rect& outline_rect,
 void D2DDeviceContextPainter::FillEllipse(const Rect& outline_rect,
                                           IBrush* brush) {
   CheckValidation();
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->FillEllipse(
       D2D1::Ellipse(Convert(outline_rect.GetCenter()),
                     outline_rect.width / 2.0f, outline_rect.height / 2.0f),
@@ -97,16 +97,16 @@ void D2DDeviceContextPainter::FillEllipse(const Rect& outline_rect,
 void D2DDeviceContextPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
                                              float width) {
   CheckValidation();
-  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformId());
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformIdUtf8());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->DrawGeometry(g->GetComInterface(), b->GetD2DBrushInterface(),
                                 width);
 }
 
 void D2DDeviceContextPainter::FillGeometry(IGeometry* geometry, IBrush* brush) {
   CheckValidation();
-  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformId());
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto g = CheckPlatform<D2DGeometry>(geometry, GetPlatformIdUtf8());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->FillGeometry(g->GetComInterface(),
                                 b->GetD2DBrushInterface());
 }
@@ -115,15 +115,15 @@ void D2DDeviceContextPainter::DrawText(const Point& offset,
                                        ITextLayout* text_layout,
                                        IBrush* brush) {
   CheckValidation();
-  const auto t = CheckPlatform<DWriteTextLayout>(text_layout, GetPlatformId());
-  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformId());
+  const auto t = CheckPlatform<DWriteTextLayout>(text_layout, GetPlatformIdUtf8());
+  const auto b = CheckPlatform<ID2DBrush>(brush, GetPlatformIdUtf8());
   device_context_->DrawTextLayout(Convert(offset), t->GetComInterface(),
                                   b->GetD2DBrushInterface());
 }
 
 void D2DDeviceContextPainter::DrawImage(const Point& offset, IImage* image) {
   CheckValidation();
-  const auto i = CheckPlatform<Direct2DImage>(image, GetPlatformId());
+  const auto i = CheckPlatform<Direct2DImage>(image, GetPlatformIdUtf8());
 
   Microsoft::WRL::ComPtr<ID2D1DeviceContext> device_context;
 
@@ -177,7 +177,7 @@ void D2DDeviceContextPainter::EndDraw() {
 void D2DDeviceContextPainter::CheckValidation() {
   if (!is_drawing_) {
     throw cru::platform::ReuseException(
-        u"Can't do that on painter after end drawing.");
+        "Can't do that on painter after end drawing.");
   }
 }
 }  // namespace cru::platform::graphics::direct2d
diff --git a/src/platform/graphics/direct2d/TextLayout.cpp b/src/platform/graphics/direct2d/TextLayout.cpp
index 06bbcaa6..7a2074ec 100644
--- a/src/platform/graphics/direct2d/TextLayout.cpp
+++ b/src/platform/graphics/direct2d/TextLayout.cpp
@@ -14,7 +14,7 @@ DWriteTextLayout::DWriteTextLayout(DirectGraphicsFactory* factory,
                                    std::shared_ptr<IFont> font, String text)
     : DirectGraphicsResource(factory), text_(std::move(text)) {
   Expects(font);
-  font_ = CheckPlatform<DWriteFont>(font, GetPlatformId());
+  font_ = CheckPlatform<DWriteFont>(font, GetPlatformIdUtf8());
 
   ThrowIfFailed(factory->GetDWriteFactory()->CreateTextLayout(
       reinterpret_cast<const wchar_t*>(text_.c_str()),
@@ -39,7 +39,7 @@ std::shared_ptr<IFont> DWriteTextLayout::GetFont() {
 }
 
 void DWriteTextLayout::SetFont(std::shared_ptr<IFont> font) {
-  font_ = CheckPlatform<DWriteFont>(font, GetPlatformId());
+  font_ = CheckPlatform<DWriteFont>(font, GetPlatformIdUtf8());
   ThrowIfFailed(GetDirectFactory()->GetDWriteFactory()->CreateTextLayout(
       reinterpret_cast<const wchar_t*>(text_.c_str()),
       static_cast<UINT32>(text_.size()), font_->GetComInterface(), max_width_,
diff --git a/src/platform/graphics/quartz/Factory.cpp b/src/platform/graphics/quartz/Factory.cpp
index 862c0966..5d5b48b5 100644
--- a/src/platform/graphics/quartz/Factory.cpp
+++ b/src/platform/graphics/quartz/Factory.cpp
@@ -33,7 +33,7 @@ std::unique_ptr<IFont> QuartzGraphicsFactory::CreateFont(String font_family,
 
 std::unique_ptr<ITextLayout> QuartzGraphicsFactory::CreateTextLayout(
     std::shared_ptr<IFont> font, String text) {
-  auto f = CheckPlatform<OsxCTFont>(font, GetPlatformId());
+  auto f = CheckPlatform<OsxCTFont>(font, GetPlatformIdUtf8());
   return std::make_unique<OsxCTTextLayout>(this, f, text);
 }
 
diff --git a/src/platform/graphics/quartz/Image.cpp b/src/platform/graphics/quartz/Image.cpp
index 966ce6be..d4ccd416 100644
--- a/src/platform/graphics/quartz/Image.cpp
+++ b/src/platform/graphics/quartz/Image.cpp
@@ -35,7 +35,7 @@ std::unique_ptr<IImage> QuartzImage::CreateWithRect(const Rect& rect) {
 std::unique_ptr<IPainter> QuartzImage::CreatePainter() {
   if (!buffer_)
     throw Exception(
-        u"Failed to create painter for image because failed to get its "
+        "Failed to create painter for image because failed to get its "
         u"buffer.");
 
   auto width = CGImageGetWidth(image_);
diff --git a/src/platform/graphics/quartz/ImageFactory.cpp b/src/platform/graphics/quartz/ImageFactory.cpp
index 93e452e1..62229bcb 100644
--- a/src/platform/graphics/quartz/ImageFactory.cpp
+++ b/src/platform/graphics/quartz/ImageFactory.cpp
@@ -39,17 +39,17 @@ static String GetImageFormatUniformTypeIdentifier(ImageFormat format) {
     case ImageFormat::Gif:
       return u"com.compuserve.gif";
     default:
-      throw Exception(u"Unknown image format.");
+      throw Exception("Unknown image format.");
   }
 }
 
 void QuartzImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
                                         ImageFormat format, float quality) {
   if (quality <= 0 || quality > 1) {
-    throw Exception(u"Invalid quality value.");
+    throw Exception("Invalid quality value.");
   }
 
-  auto quartz_image = CheckPlatform<QuartzImage>(image, GetPlatformId());
+  auto quartz_image = CheckPlatform<QuartzImage>(image, GetPlatformIdUtf8());
   auto cg_image = quartz_image->GetCGImage();
 
   auto uti = ToCFString(GetImageFormatUniformTypeIdentifier(format));
@@ -67,7 +67,7 @@ void QuartzImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
   CGImageDestinationAddImage(destination, cg_image, properties);
 
   if (!CGImageDestinationFinalize(destination)) {
-    throw Exception(u"Failed to finalize image destination.");
+    throw Exception("Failed to finalize image destination.");
   }
 
   CFRelease(quality_wrap);
@@ -78,8 +78,8 @@ void QuartzImageFactory::EncodeToStream(IImage* image, io::Stream* stream,
 
 std::unique_ptr<IImage> QuartzImageFactory::CreateBitmap(int width,
                                                          int height) {
-  if (width <= 0) throw Exception(u"Image width should be greater than 0.");
-  if (height <= 0) throw Exception(u"Image height should be greater than 0.");
+  if (width <= 0) throw Exception("Image width should be greater than 0.");
+  if (height <= 0) throw Exception("Image height should be greater than 0.");
 
   CGColorSpaceRef color_space = CGColorSpaceCreateDeviceRGB();
 
diff --git a/src/platform/graphics/quartz/Painter.cpp b/src/platform/graphics/quartz/Painter.cpp
index 69e187c3..fe0f5d43 100644
--- a/src/platform/graphics/quartz/Painter.cpp
+++ b/src/platform/graphics/quartz/Painter.cpp
@@ -66,7 +66,7 @@ void QuartzCGContextPainter::DrawLine(const Point& start, const Point& end,
   CGContextMoveToPoint(cg_context_, start.x, start.y);
   CGContextAddLineToPoint(cg_context_, end.x, end.y);
 
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
   b->Select(cg_context_);
   SetLineWidth(width);
 
@@ -77,7 +77,7 @@ void QuartzCGContextPainter::StrokeRectangle(const Rect& rectangle,
                                              IBrush* brush, float width) {
   Validate();
 
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
   b->Select(cg_context_);
   CGContextStrokeRectWithWidth(cg_context_, Convert(rectangle), width);
 }
@@ -86,7 +86,7 @@ void QuartzCGContextPainter::FillRectangle(const Rect& rectangle,
                                            IBrush* brush) {
   Validate();
 
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
   b->Select(cg_context_);
   CGContextFillRect(cg_context_, Convert(rectangle));
 }
@@ -95,7 +95,7 @@ void QuartzCGContextPainter::StrokeEllipse(const Rect& outline_rect,
                                            IBrush* brush, float width) {
   Validate();
 
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
   b->Select(cg_context_);
   SetLineWidth(width);
 
@@ -106,7 +106,7 @@ void QuartzCGContextPainter::FillEllipse(const Rect& outline_rect,
                                          IBrush* brush) {
   Validate();
 
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
   b->Select(cg_context_);
   CGContextFillEllipseInRect(cg_context_, Convert(outline_rect));
 }
@@ -115,8 +115,8 @@ void QuartzCGContextPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
                                             float width) {
   Validate();
 
-  QuartzGeometry* g = CheckPlatform<QuartzGeometry>(geometry, GetPlatformId());
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzGeometry* g = CheckPlatform<QuartzGeometry>(geometry, GetPlatformIdUtf8());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
 
   b->Select(cg_context_);
   SetLineWidth(width);
@@ -129,8 +129,8 @@ void QuartzCGContextPainter::StrokeGeometry(IGeometry* geometry, IBrush* brush,
 void QuartzCGContextPainter::FillGeometry(IGeometry* geometry, IBrush* brush) {
   Validate();
 
-  QuartzGeometry* g = CheckPlatform<QuartzGeometry>(geometry, GetPlatformId());
-  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformId());
+  QuartzGeometry* g = CheckPlatform<QuartzGeometry>(geometry, GetPlatformIdUtf8());
+  QuartzBrush* b = CheckPlatform<QuartzBrush>(brush, GetPlatformIdUtf8());
 
   b->Select(cg_context_);
   CGContextBeginPath(cg_context_);
@@ -142,7 +142,7 @@ void QuartzCGContextPainter::DrawText(const Point& offset,
                                       ITextLayout* text_layout, IBrush* brush) {
   Validate();
 
-  auto tl = CheckPlatform<OsxCTTextLayout>(text_layout, GetPlatformId());
+  auto tl = CheckPlatform<OsxCTTextLayout>(text_layout, GetPlatformIdUtf8());
 
   Color color;
 
@@ -169,7 +169,7 @@ void QuartzCGContextPainter::DrawText(const Point& offset,
 
 void QuartzCGContextPainter::DrawImage(const Point& offset, IImage* image) {
   Validate();
-  auto i = CheckPlatform<QuartzImage>(image, GetPlatformId());
+  auto i = CheckPlatform<QuartzImage>(image, GetPlatformIdUtf8());
 
   auto cg_image = i->GetCGImage();
 
@@ -225,6 +225,6 @@ void QuartzCGContextPainter::DoEndDraw() {
 
 void QuartzCGContextPainter::Validate() {
   if (cg_context_ == nullptr)
-    throw ReuseException(u"QuartzCGContextPainter has already be released.");
+    throw ReuseException("QuartzCGContextPainter has already be released.");
 }
 }  // namespace cru::platform::graphics::quartz
diff --git a/src/platform/graphics/quartz/TextLayout.cpp b/src/platform/graphics/quartz/TextLayout.cpp
index 8c573c7a..41a2f176 100644
--- a/src/platform/graphics/quartz/TextLayout.cpp
+++ b/src/platform/graphics/quartz/TextLayout.cpp
@@ -31,7 +31,7 @@ OsxCTTextLayout::~OsxCTTextLayout() {
 }
 
 void OsxCTTextLayout::SetFont(std::shared_ptr<IFont> font) {
-  font_ = CheckPlatform<OsxCTFont>(font, GetPlatformId());
+  font_ = CheckPlatform<OsxCTFont>(font, GetPlatformIdUtf8());
   RecreateFrame();
 }
 
diff --git a/src/platform/graphics/web_canvas/Painter.cpp b/src/platform/graphics/web_canvas/Painter.cpp
index c9184165..f928de35 100644
--- a/src/platform/graphics/web_canvas/Painter.cpp
+++ b/src/platform/graphics/web_canvas/Painter.cpp
@@ -94,7 +94,7 @@ void WebCanvasPainter::SetFillStyle(IBrush* brush) {
 }
 
 WebCanvasBrush* WebCanvasPainter::ConvertBrush(IBrush* brush) const {
-  return CheckPlatform<WebCanvasBrush>(brush, GetPlatformId());
+  return CheckPlatform<WebCanvasBrush>(brush, GetPlatformIdUtf8());
 }
 
 WebCanvasRef WebCanvasPainter::GetCanvas() {