...

5 files changed, 40 insertions, 13 deletions

diff --git a/include/cru/common/StringUtil.hpp b/include/cru/common/StringUtil.hpp
index 62999d53..912106c3 100644
--- a/include/cru/common/StringUtil.hpp
+++ b/include/cru/common/StringUtil.hpp
@@ -145,4 +145,9 @@ gsl::index Utf16PreviousWord(std::u16string_view str, gsl::index position,
                              bool* is_space = nullptr);
 gsl::index Utf16NextWord(std::u16string_view str, gsl::index position,
                          bool* is_space = nullptr);
+
+char16_t ToLower(char16_t c);
+char16_t ToUpper(char16_t c);
+std::u16string ToLower(std::u16string_view s);
+std::u16string ToUpper(std::u16string_view s);
 }  // namespace cru
diff --git a/include/cru/platform/Color.hpp b/include/cru/platform/Color.hpp
index d1a9b678..efa02848 100644
--- a/include/cru/platform/Color.hpp
+++ b/include/cru/platform/Color.hpp
@@ -30,6 +30,9 @@ struct Color {
     return result;
   }
 
+  std::string ToUtf8String() const;
+  std::u16string ToString() const;
+
   std::uint8_t red;
   std::uint8_t green;
   std::uint8_t blue;
diff --git a/include/cru/ui/ThemeManager.hpp b/include/cru/ui/ThemeManager.hpp
index c9e17680..1da29a0e 100644
--- a/include/cru/ui/ThemeManager.hpp
+++ b/include/cru/ui/ThemeManager.hpp
@@ -2,26 +2,49 @@
 #include "Base.hpp"
 #include "cru/common/Base.hpp"
 #include "cru/common/Event.hpp"
+#include "cru/platform/graphics/Brush.hpp"
 
 #include <boost/property_tree/ptree.hpp>
 #include <cstddef>
+#include <memory>
+#include <stdexcept>
+#include <string_view>
+#include <unordered_map>
 
 namespace cru::ui {
+class BadThemeResourceException : public std::runtime_error {
+ public:
+  using std::runtime_error::runtime_error;
+};
+
 class ThemeManager : public Object {
  public:
+  static ThemeManager* GetInstance();
+
+ private:
   ThemeManager();
 
+ public:
   CRU_DELETE_COPY(ThemeManager)
   CRU_DELETE_MOVE(ThemeManager)
 
-  ~ThemeManager() override;
+  ~ThemeManager() override = default;
 
   IEvent<std::nullptr_t>* ThemeResourceChangeEvent() {
     return &theme_resource_change_event_;
   }
 
+  gsl::not_null<std::shared_ptr<platform::graphics::IBrush>> GetBrush(
+      std::u16string key);
+
+ private:
+  void Init();
+
  private:
   Event<std::nullptr_t> theme_resource_change_event_;
-  boost::property_tree::iptree theme_tree_;
+  boost::property_tree::ptree theme_tree_;
+  std::unordered_map<std::u16string,
+                     std::shared_ptr<platform::graphics::IBrush>>
+      brushes_;
 };
 }  // namespace cru::ui
diff --git a/include/cru/ui/UiManager.hpp b/include/cru/ui/UiManager.hpp
index b9af0065..10b12e87 100644
--- a/include/cru/ui/UiManager.hpp
+++ b/include/cru/ui/UiManager.hpp
@@ -4,7 +4,6 @@
 #include "controls/Base.hpp"
 #include "cru/platform/graphics/Brush.hpp"
 #include "cru/ui/helper/ClickDetector.hpp"
-#include "render/ScrollBar.hpp"
 #include "style/StyleRuleSet.hpp"
 
 #include <gsl/pointers>
@@ -23,13 +22,6 @@ struct ThemeResources {
   style::StyleRuleSet text_box_style;
 
   style::StyleRuleSet menu_item_style;
-
-  std::shared_ptr<platform::graphics::IBrush> scroll_bar_colllapsed_thumb_brush;
-  std::unordered_map<
-      render::ScrollBarBrushUsageKind,
-      std::unordered_map<helper::ClickState,
-                         std::shared_ptr<platform::graphics::IBrush>>>
-      scroll_bar_brushes;
 };
 
 class UiManager : public Object {
diff --git a/include/cru/ui/render/ScrollBar.hpp b/include/cru/ui/render/ScrollBar.hpp
index f72aef9b..8f18c821 100644
--- a/include/cru/ui/render/ScrollBar.hpp
+++ b/include/cru/ui/render/ScrollBar.hpp
@@ -38,6 +38,10 @@ enum class ScrollBarAreaKind {
 };
 
 enum class ScrollBarBrushUsageKind { Arrow, ArrowBackground, Slot, Thumb };
+enum class ScrollBarBrushStateKind { Normal, Hover, Press, Disable };
+
+std::u16string GenerateScrollBarThemeColorKey(ScrollBarBrushUsageKind usage,
+                                              ScrollBarBrushStateKind state);
 
 class ScrollBar : public Object {
  public:
@@ -71,9 +75,9 @@ class ScrollBar : public Object {
   void SetCollapsedThumbBrush(
       std::shared_ptr<platform::graphics::IBrush> brush);
   gsl::not_null<std::shared_ptr<platform::graphics::IBrush>> GetBrush(
-      ScrollBarBrushUsageKind kind, helper::ClickState click_state);
+      ScrollBarBrushUsageKind usage, ScrollBarBrushStateKind state);
   // Brush could be nullptr to use the theme brush.
-  void SetBrush(ScrollBarBrushUsageKind kind, helper::ClickState click_state,
+  void SetBrush(ScrollBarBrushUsageKind usage, ScrollBarBrushStateKind state,
                 std::shared_ptr<platform::graphics::IBrush> brush);
 
  protected:
@@ -124,7 +128,7 @@ class ScrollBar : public Object {
   std::shared_ptr<platform::graphics::IBrush> collapsed_thumb_brush_;
   std::unordered_map<
       ScrollBarBrushUsageKind,
-      std::unordered_map<helper::ClickState,
+      std::unordered_map<ScrollBarBrushStateKind,
                          std::shared_ptr<platform::graphics::IBrush>>>
       brushes_;