Tooling

Source/SaltyEditor/WorldMap/WorldMapTab.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Widgets/SCompoundWidget.h"
+
+class SWorldMap;
+class UWorldMapDefinition;
+template <typename T> class SComboBox;
+
+/**
+ * The World Map tab: the same SWorldMap the game draws, with a strip of controls above it and a click that
+ * takes the viewport camera somewhere.
+ *
+ * The map widget is shared rather than reimplemented, which is the point of it being Slate. What differs here
+ * is only what an editor has and a game does not: a choice of which world's map to look at, and a viewport to
+ * send somewhere. There are no markers, because markers come from a UWorldMapSubsystem and an editor world
+ * has none - that is not a gap, it is that nobody is playing.
+ */
+class SWorldMapPanel : public SCompoundWidget
+{
+public:
+	SLATE_BEGIN_ARGS(SWorldMapPanel) {}
+	SLATE_END_ARGS()
+
+	void Construct(const FArguments& InArgs);
+
+private:
+	/** Every UWorldMapDefinition in the project, by asset registry. Editor-only, which is why it may do this. */
+	void FindDefinitions();
+
+	void SelectDefinition(TWeakObjectPtr<UWorldMapDefinition> Choice);
+	void HandleMapClicked(FVector2D WorldCm);
+
+	TSharedRef<SWidget> MakeToolbar();
+	FText DefinitionLabel() const;
+	FText LayerLabel() const;
+	FText StatusLabel() const;
+
+	TArray<TWeakObjectPtr<UWorldMapDefinition>> Definitions;
+	TWeakObjectPtr<UWorldMapDefinition> Selected;
+
+	TArray<TSharedPtr<FName>> LayerOptions;
+
+	TSharedPtr<SWorldMap> Map;
+	TSharedPtr<SComboBox<TSharedPtr<FName>>> LayerCombo;
+
+	/** What the last click did, so a click that could not move a camera says why rather than doing nothing. */
+	FText Status;
+};
+
+/** Registers and unregisters the tab with the global tab manager. Called by the module. */
+namespace SaltyWorldMapTab
+{
+	extern const FName TabId;
+
+	void Register();
+	void Unregister();
+}