mirror of
https://github.com/kevinporetti/UnrealImGui.git
synced 2025-01-19 00:40:32 +00:00
9d4eb74bf0
- The old DPI Scale setting was replaced by DPI Scaling Info, which contains information about scale and method of scaling. - ImGui Context Manager handles scaling in ImGui by scaling all styles, rebuilding fonts using a different size, and raising OnFontAtlasBuilt event. - ImGui Module Manager uses OnFontAtlasBuilt event to rebuild font textures. - The update policy in Texture Manager was loosened to update existing resources rather than throwing an exception. This is less strict but it is now more useful since our main texture can now change. The throwing behavior used in the public interface is now handled before calling to the Texture Manager.
155 lines
5.1 KiB
C++
155 lines
5.1 KiB
C++
// Distributed under the MIT License (MIT) (see accompanying LICENSE file)
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#pragma once
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#include "ImGuiModuleDebug.h"
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#include "ImGuiModuleSettings.h"
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#include <Widgets/SCompoundWidget.h>
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// Hide ImGui Widget debug in non-developer mode.
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#define IMGUI_WIDGET_DEBUG IMGUI_MODULE_DEVELOPER
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class FImGuiModuleManager;
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class SImGuiCanvasControl;
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class UImGuiInputHandler;
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// Slate widget for rendering ImGui output and storing Slate inputs.
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class SImGuiWidget : public SCompoundWidget
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{
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typedef SCompoundWidget Super;
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public:
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SLATE_BEGIN_ARGS(SImGuiWidget)
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{}
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SLATE_ARGUMENT(FImGuiModuleManager*, ModuleManager)
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SLATE_ARGUMENT(UGameViewportClient*, GameViewport)
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SLATE_ARGUMENT(int32, ContextIndex)
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SLATE_END_ARGS()
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void Construct(const FArguments& InArgs);
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~SImGuiWidget();
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// Get index of the context that this widget is targeting.
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int32 GetContextIndex() const { return ContextIndex; }
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//----------------------------------------------------------------------------------------------------
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// SWidget overrides
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//----------------------------------------------------------------------------------------------------
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virtual void Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime) override;
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virtual bool SupportsKeyboardFocus() const override { return bInputEnabled && !IsConsoleOpened(); }
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virtual FReply OnKeyChar(const FGeometry& MyGeometry, const FCharacterEvent& CharacterEvent) override;
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virtual FReply OnKeyDown(const FGeometry& MyGeometry, const FKeyEvent& KeyEvent) override;
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virtual FReply OnKeyUp(const FGeometry& MyGeometry, const FKeyEvent& KeyEvent) override;
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virtual FReply OnAnalogValueChanged(const FGeometry& MyGeometry, const FAnalogInputEvent& AnalogInputEvent) override;
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virtual FReply OnMouseButtonDown(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnMouseButtonDoubleClick(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnMouseButtonUp(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnMouseWheel(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnMouseMove(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual FReply OnFocusReceived(const FGeometry& MyGeometry, const FFocusEvent& FocusEvent) override;
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virtual void OnFocusLost(const FFocusEvent& FocusEvent) override;
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virtual void OnMouseEnter(const FGeometry& MyGeometry, const FPointerEvent& MouseEvent) override;
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virtual void OnMouseLeave(const FPointerEvent& MouseEvent) override;
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virtual FReply OnTouchStarted(const FGeometry& MyGeometry, const FPointerEvent& TouchEvent) override;
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virtual FReply OnTouchMoved(const FGeometry& MyGeometry, const FPointerEvent& TouchEvent) override;
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virtual FReply OnTouchEnded(const FGeometry& MyGeometry, const FPointerEvent& TouchEvent) override;
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private:
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void CreateInputHandler(const FStringClassReference& HandlerClassReference);
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void ReleaseInputHandler();
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void RegisterImGuiSettingsDelegates();
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void UnregisterImGuiSettingsDelegates();
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void SetHideMouseCursor(bool bHide);
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bool IsConsoleOpened() const;
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// Update visibility based on input state.
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void UpdateVisibility();
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// Update cursor based on input state.
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void UpdateMouseCursor();
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ULocalPlayer* GetLocalPlayer() const;
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void TakeFocus();
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void ReturnFocus();
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// Update input state.
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void UpdateInputState();
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void UpdateTransparentMouseInput(const FGeometry& AllottedGeometry);
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void HandleWindowFocusLost();
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void SetDPIScale(const FImGuiDPIScaleInfo& ScaleInfo);
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void SetCanvasSizeInfo(const FImGuiCanvasSizeInfo& CanvasSizeInfo);
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void UpdateCanvasSize();
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void UpdateCanvasControlMode(const FInputEvent& InputEvent);
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void OnPostImGuiUpdate();
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FVector2D TransformScreenPointToImGui(const FGeometry& MyGeometry, const FVector2D& Point) const;
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virtual int32 OnPaint(const FPaintArgs& Args, const FGeometry& AllottedGeometry, const FSlateRect& MyClippingRect, FSlateWindowElementList& OutDrawElements, int32 LayerId, const FWidgetStyle& WidgetStyle, bool bParentEnabled) const override;
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virtual FVector2D ComputeDesiredSize(float) const override;
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void SetImGuiTransform(const FSlateRenderTransform& Transform) { ImGuiTransform = Transform; }
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#if IMGUI_WIDGET_DEBUG
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void OnDebugDraw();
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#endif // IMGUI_WIDGET_DEBUG
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FImGuiModuleManager* ModuleManager = nullptr;
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TWeakObjectPtr<UGameViewportClient> GameViewport;
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TWeakObjectPtr<UImGuiInputHandler> InputHandler;
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FSlateRenderTransform ImGuiTransform;
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FSlateRenderTransform ImGuiRenderTransform;
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mutable TArray<FSlateVertex> VertexBuffer;
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mutable TArray<SlateIndex> IndexBuffer;
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int32 ContextIndex = 0;
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FVector2D MinCanvasSize = FVector2D::ZeroVector;
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FVector2D CanvasSize = FVector2D::ZeroVector;
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float DPIScale = 1.f;
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bool bInputEnabled = false;
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bool bForegroundWindow = false;
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bool bHideMouseCursor = true;
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bool bTransparentMouseInput = false;
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bool bAdaptiveCanvasSize = false;
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bool bUpdateCanvasSize = false;
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bool bCanvasControlEnabled = false;
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TSharedPtr<SImGuiCanvasControl> CanvasControlWidget;
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TWeakPtr<SWidget> PreviousUserFocusedWidget;
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};
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