[nostalgia/core/studio] Add palette picker combo box

src/nostalgia/core/studio/tilesheeteditor-imgui.hpp

@@ -6,9 +6,7 @@
 
 #include <ox/model/def.hpp>
 
-#include <nostalgia/geo/bounds.hpp>
 #include <nostalgia/geo/vec.hpp>
-#include <nostalgia/core/gfx.hpp>
 #include <nostalgia/glutils/glutils.hpp>
 #include <nostalgia/studio/studio.hpp>
 
@@ -43,6 +41,9 @@ class TileSheetEditorImGui: public studio::Editor {
 				}
 				void draw() noexcept;
 		};
+		std::size_t m_selectedPaletteIdx = 0;
+		Context *m_ctx = nullptr;
+		ox::Vector<ox::String> m_paletteList;
 		SubSheetEditor m_subsheetEditor;
 		ox::String m_itemPath;
 		ox::String m_itemName;
@@ -103,7 +104,7 @@ class TileSheetEditorImGui: public studio::Editor {
 
 		void drawTileSheet(const geo::Vec2 &fbSize) noexcept;
 
-		void drawPalettePicker() noexcept;
+		void drawPaletteSelector() noexcept;
 
 		ox::Error updateActiveSubsheet(const ox::String &name, int cols, int rows) noexcept;