#include <ImNodesCanvasEditor.h>

Inheritance diagram for Olympe::ImNodesCanvasEditor:

Collaboration diagram for Olympe::ImNodesCanvasEditor:

Public Member Functions
	ImNodesCanvasEditor (const char name, ImVec2 canvasScreenPos, ImVec2 canvasSize, ImNodesEditorContext imnodesContext=nullptr)
	Construct imnodes-based canvas editor.

virtual	~ImNodesCanvasEditor ()=default

virtual void	BeginRender () override
	Begin rendering cycle (calls ImNodes::BeginNodeEditor)

virtual void	EndRender () override
	End rendering cycle (calls ImNodes::EndNodeEditor)

virtual ImVec2	ScreenToCanvas (const ImVec2 &screenPos) const override
	Transform screen space to canvas space.

virtual ImVec2	CanvasToScreen (const ImVec2 &canvasPos) const override
	Transform canvas space to screen space.

virtual ImVec2	EditorToGrid (const ImVec2 &editorPos) const override
	Transform editor space to grid space (removes pan)

virtual ImVec2	GridToEditor (const ImVec2 &gridPos) const override
	Transform grid space to editor space (adds pan)

virtual ImVec2	GetPan () const override
	Get current pan offset.

virtual void	SetPan (const ImVec2 &offset) override
	Set pan offset.

virtual void	PanBy (const ImVec2 &delta) override
	Pan by delta.

virtual void	ResetPan () override
	Reset pan to origin.

virtual float	GetZoom () const override
	Get current zoom level.

virtual void	SetZoom (float scale, const ImVec2 *zoomCenter=nullptr) override
	Set zoom level (no-op for imnodes)

virtual void	ZoomBy (float factor, const ImVec2 *zoomCenter=nullptr) override
	Zoom by multiplier (no-op for imnodes)

virtual ImVec2	GetZoomLimits () const override
	Get zoom limits.

virtual void	ResetZoom () override
	Reset zoom to 1.0x (no-op, already 1.0f)

virtual void	ResetView () override
	Reset view to defaults (pan only, zoom already 1.0f)

virtual CanvasGridRenderer::GridConfig	GetGridConfig () const override
	Get current grid configuration.

virtual void	RenderGrid (CanvasGridRenderer::GridStylePreset preset) override
	Render grid.

virtual void	SetGridVisible (bool enabled) override
	Set grid visibility.

virtual bool	IsGridVisible () const override
	Check if grid is visible.

virtual ImVec2	GetCanvasScreenPos () const override
	Get canvas screen position.

virtual ImVec2	GetCanvasSize () const override
	Get canvas size.

virtual void	SetCanvasScreenPos (const ImVec2 &screenPos) override
	Set canvas screen position (call each frame to update)

virtual void	SetCanvasSize (const ImVec2 &size) override
	Set canvas size (call each frame to update)

virtual void	GetCanvasVisibleBounds (ImVec2 &outMin, ImVec2 &outMax) const override
	Get canvas visible bounds in canvas space.

virtual bool	IsPointInCanvas (const ImVec2 &screenPos) const override
	Check if point is in canvas.

virtual bool	IsCanvasHovered () const override
	Check if canvas is hovered.

virtual const char *	GetCanvasName () const override
	Get canvas name.

virtual void	RenderMinimap () override
	Render minimap overlay.

virtual void	SetMinimapVisible (bool enabled) override
	Enable/disable minimap rendering.

virtual bool	IsMinimapVisible () const override
	Check if minimap is visible.

virtual void	SetMinimapSize (float scale) override
	Set minimap size scale.

virtual float	GetMinimapSize () const override
	Get minimap size scale.

virtual void	SetMinimapPosition (int position) override
	Set minimap position.

virtual int	GetMinimapPosition () const override
	Get minimap position.

virtual void	UpdateMinimapNodes (const std::vector< std::tuple< int, float, float, float, float > > &nodes, float graphMinX, float graphMaxX, float graphMinY, float graphMaxY) override
	Update minimap nodes (no-op for imnodes)

virtual void	UpdateMinimapViewport (float viewMinX, float viewMaxX, float viewMinY, float viewMaxY, float graphMinX, float graphMaxX, float graphMinY, float graphMaxY) override
	Update minimap viewport (no-op for imnodes)

Public Member Functions inherited from Olympe::ICanvasEditor
virtual	~ICanvasEditor ()=default

Private Attributes
std::string	m_name

ImVec2	m_canvasScreenPos

ImVec2	m_canvasSize

ImNodesEditorContext *	m_imnodesContext

bool	m_gridVisible

bool	m_minimapVisible = true

float	m_minimapSize = 0.15f

int	m_minimapPosition = ImNodesMiniMapLocation_BottomRight

Detailed Description

Definition at line 39 of file ImNodesCanvasEditor.h.

Constructor & Destructor Documentation

◆ ImNodesCanvasEditor()

Olympe::ImNodesCanvasEditor::ImNodesCanvasEditor	(	const char *	name,
		ImVec2	canvasScreenPos,
		ImVec2	canvasSize,
		ImNodesEditorContext *	imnodesContext = `nullptr`
	)

Construct imnodes-based canvas editor.

Parameters

name	Identifier for this editor (e.g., "VisualScript")
canvasScreenPos	Top-left corner of canvas on screen (pixels)
canvasSize	Width/height of canvas area (pixels)
imnodesContext	Optional ImNodes context (nullptr = use current)

Definition at line 11 of file ImNodesCanvasEditor.cpp.

◆ ~ImNodesCanvasEditor()

virtual Olympe::ImNodesCanvasEditor::~ImNodesCanvasEditor ( )

virtualdefault

Member Function Documentation

◆ BeginRender()

void Olympe::ImNodesCanvasEditor::BeginRender ( )

overridevirtual

Begin rendering cycle (calls ImNodes::BeginNodeEditor)

Implements Olympe::ICanvasEditor.

Definition at line 29 of file ImNodesCanvasEditor.cpp.

References m_imnodesContext.

◆ CanvasToScreen()

ImVec2 Olympe::ImNodesCanvasEditor::CanvasToScreen ( const ImVec2 & canvasPos ) const

overridevirtual

Transform canvas space to screen space.

For imnodes (zoom=1.0): screen = canvas + pan + canvasScreenPos

Implements Olympe::ICanvasEditor.

Definition at line 62 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), GetPan(), and m_canvasScreenPos.

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◆ EditorToGrid()

ImVec2 Olympe::ImNodesCanvasEditor::EditorToGrid ( const ImVec2 & editorPos ) const

overridevirtual

Transform editor space to grid space (removes pan)

For imnodes: grid = editor - pan

Implements Olympe::ICanvasEditor.

Definition at line 69 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), and GetPan().

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◆ EndRender()

void Olympe::ImNodesCanvasEditor::EndRender ( )

overridevirtual

End rendering cycle (calls ImNodes::EndNodeEditor)

Implements Olympe::ICanvasEditor.

Definition at line 41 of file ImNodesCanvasEditor.cpp.

◆ GetCanvasName()

virtual const char * Olympe::ImNodesCanvasEditor::GetCanvasName ( ) const

inlineoverridevirtual

Get canvas name.

Returns: Stored canvas name

Implements Olympe::ICanvasEditor.

Definition at line 272 of file ImNodesCanvasEditor.h.

References m_name.

◆ GetCanvasScreenPos()

virtual ImVec2 Olympe::ImNodesCanvasEditor::GetCanvasScreenPos ( ) const

inlineoverridevirtual

Get canvas screen position.

Returns: Stored canvasScreenPos

Implements Olympe::ICanvasEditor.

Definition at line 222 of file ImNodesCanvasEditor.h.

References m_canvasScreenPos.

◆ GetCanvasSize()

virtual ImVec2 Olympe::ImNodesCanvasEditor::GetCanvasSize ( ) const

inlineoverridevirtual

Get canvas size.

Returns: Stored canvasSize

Implements Olympe::ICanvasEditor.

Definition at line 228 of file ImNodesCanvasEditor.h.

References m_canvasSize.

◆ GetCanvasVisibleBounds()

void Olympe::ImNodesCanvasEditor::GetCanvasVisibleBounds	(	ImVec2 &	outMin,
		ImVec2 &	outMax
	)		const

overridevirtual

Get canvas visible bounds in canvas space.

Parameters

outMin	Top-left corner of visible area
outMax	Bottom-right corner of visible area

Implements Olympe::ICanvasEditor.

Definition at line 154 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), m_canvasScreenPos, m_canvasSize, and ScreenToCanvas().

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◆ GetGridConfig()

CanvasGridRenderer::GridConfig Olympe::ImNodesCanvasEditor::GetGridConfig ( ) const

overridevirtual

Get current grid configuration.

Returns: GridConfig from CanvasGridRenderer with current pan/zoom

Implements Olympe::ICanvasEditor.

Definition at line 112 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), GetPan(), Olympe::CanvasGridRenderer::GetStylePreset(), m_canvasScreenPos, m_canvasSize, and Olympe::CanvasGridRenderer::Style_VisualScript.

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◆ GetMinimapPosition()

virtual int Olympe::ImNodesCanvasEditor::GetMinimapPosition ( ) const

inlineoverridevirtual

Get minimap position.

Returns: Current ImNodesMiniMapLocation value

Implements Olympe::ICanvasEditor.

Definition at line 318 of file ImNodesCanvasEditor.h.

References m_minimapPosition.

◆ GetMinimapSize()

virtual float Olympe::ImNodesCanvasEditor::GetMinimapSize ( ) const

inlineoverridevirtual

Get minimap size scale.

Returns: Current size multiplier

Implements Olympe::ICanvasEditor.

Definition at line 306 of file ImNodesCanvasEditor.h.

References m_minimapSize.

◆ GetPan()

ImVec2 Olympe::ImNodesCanvasEditor::GetPan ( ) const

overridevirtual

Get current pan offset.

Returns: EditorContextGetPanning() from imnodes

Implements Olympe::ICanvasEditor.

Definition at line 87 of file ImNodesCanvasEditor.cpp.

Referenced by CanvasToScreen(), EditorToGrid(), GetGridConfig(), GridToEditor(), PanBy(), RenderGrid(), and ScreenToCanvas().

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◆ GetZoom()

virtual float Olympe::ImNodesCanvasEditor::GetZoom ( ) const

inlineoverridevirtual

Get current zoom level.

Returns: Always 1.0f (imnodes doesn't support zoom)

Implements Olympe::ICanvasEditor.

Definition at line 139 of file ImNodesCanvasEditor.h.

◆ GetZoomLimits()

virtual ImVec2 Olympe::ImNodesCanvasEditor::GetZoomLimits ( ) const

inlineoverridevirtual

Get zoom limits.

Returns: {1.0f, 1.0f} (fixed, no zoom support)

Implements Olympe::ICanvasEditor.

Definition at line 167 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static().

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◆ GridToEditor()

ImVec2 Olympe::ImNodesCanvasEditor::GridToEditor ( const ImVec2 & gridPos ) const

overridevirtual

Transform grid space to editor space (adds pan)

For imnodes: editor = grid + pan

Implements Olympe::ICanvasEditor.

Definition at line 76 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), and GetPan().

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◆ IsCanvasHovered()

bool Olympe::ImNodesCanvasEditor::IsCanvasHovered ( ) const

overridevirtual

Check if canvas is hovered.

Returns: Result of ImNodes::IsEditorHovered()

Implements Olympe::ICanvasEditor.

Definition at line 177 of file ImNodesCanvasEditor.cpp.

◆ IsGridVisible()

virtual bool Olympe::ImNodesCanvasEditor::IsGridVisible ( ) const

inlineoverridevirtual

Check if grid is visible.

Returns: True if grid will be rendered

Implements Olympe::ICanvasEditor.

Definition at line 212 of file ImNodesCanvasEditor.h.

References m_gridVisible.

◆ IsMinimapVisible()

virtual bool Olympe::ImNodesCanvasEditor::IsMinimapVisible ( ) const

inlineoverridevirtual

Check if minimap is visible.

Returns: True if minimap will be rendered

Implements Olympe::ICanvasEditor.

Definition at line 294 of file ImNodesCanvasEditor.h.

References m_minimapVisible.

◆ IsPointInCanvas()

bool Olympe::ImNodesCanvasEditor::IsPointInCanvas ( const ImVec2 & screenPos ) const

overridevirtual

Check if point is in canvas.

Parameters

screenPos Position in screen space

Returns: True if within canvas bounds

Implements Olympe::ICanvasEditor.

Definition at line 165 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), m_canvasScreenPos, and m_canvasSize.

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◆ PanBy()

void Olympe::ImNodesCanvasEditor::PanBy ( const ImVec2 & delta )

overridevirtual

Pan by delta.

Implements Olympe::ICanvasEditor.

Definition at line 97 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), GetPan(), and SetPan().

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◆ RenderGrid()

void Olympe::ImNodesCanvasEditor::RenderGrid ( CanvasGridRenderer::GridStylePreset preset )

overridevirtual

Render grid.

Parameters

preset Style preset (typically Style_VisualScript)

Implements Olympe::ICanvasEditor.

Definition at line 128 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), GetPan(), Olympe::CanvasGridRenderer::GetStylePreset(), m_canvasScreenPos, m_canvasSize, m_gridVisible, and Olympe::CanvasGridRenderer::RenderGrid().

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◆ RenderMinimap()

void Olympe::ImNodesCanvasEditor::RenderMinimap ( )

overridevirtual

Render minimap overlay.

Calls ImNodes::MiniMap() with configured size and position

Implements Olympe::ICanvasEditor.

Definition at line 186 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), m_minimapPosition, m_minimapSize, and m_minimapVisible.

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◆ ResetPan()

void Olympe::ImNodesCanvasEditor::ResetPan ( )

overridevirtual

Reset pan to origin.

Implements Olympe::ICanvasEditor.

Definition at line 103 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), and SetPan().

Referenced by ResetView().

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◆ ResetView()

virtual void Olympe::ImNodesCanvasEditor::ResetView ( )

inlineoverridevirtual

Reset view to defaults (pan only, zoom already 1.0f)

Implements Olympe::ICanvasEditor.

Definition at line 180 of file ImNodesCanvasEditor.h.

References ResetPan().

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◆ ResetZoom()

virtual void Olympe::ImNodesCanvasEditor::ResetZoom ( )

inlineoverridevirtual

Reset zoom to 1.0x (no-op, already 1.0f)

Implements Olympe::ICanvasEditor.

Definition at line 172 of file ImNodesCanvasEditor.h.

◆ ScreenToCanvas()

ImVec2 Olympe::ImNodesCanvasEditor::ScreenToCanvas ( const ImVec2 & screenPos ) const

overridevirtual

Transform screen space to canvas space.

For imnodes (zoom=1.0): canvas = screen - canvasScreenPos - pan

Implements Olympe::ICanvasEditor.

Definition at line 54 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), GetPan(), and m_canvasScreenPos.

Referenced by GetCanvasVisibleBounds().

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◆ SetCanvasScreenPos()

virtual void Olympe::ImNodesCanvasEditor::SetCanvasScreenPos ( const ImVec2 & screenPos )

inlineoverridevirtual

Set canvas screen position (call each frame to update)

Parameters

screenPos Top-left corner position in screen space

Required for minimap coordinate calculations each frame

Implements Olympe::ICanvasEditor.

Definition at line 235 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static(), and m_canvasScreenPos.

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◆ SetCanvasSize()

virtual void Olympe::ImNodesCanvasEditor::SetCanvasSize ( const ImVec2 & size )

inlineoverridevirtual

Set canvas size (call each frame to update)

Parameters

size	Width and height in screen space

Required for minimap rendering calculations each frame

Implements Olympe::ICanvasEditor.

Definition at line 242 of file ImNodesCanvasEditor.h.

References m_canvasSize.

◆ SetGridVisible()

void Olympe::ImNodesCanvasEditor::SetGridVisible ( bool enabled )

overridevirtual

Set grid visibility.

Parameters

enabled True to show grid

Implements Olympe::ICanvasEditor.

Definition at line 145 of file ImNodesCanvasEditor.cpp.

References m_gridVisible.

◆ SetMinimapPosition()

void Olympe::ImNodesCanvasEditor::SetMinimapPosition ( int position )

overridevirtual

Set minimap position.

Parameters

position ImNodesMiniMapLocation enum value

Implements Olympe::ICanvasEditor.

Definition at line 207 of file ImNodesCanvasEditor.cpp.

References m_minimapPosition.

◆ SetMinimapSize()

void Olympe::ImNodesCanvasEditor::SetMinimapSize ( float scale )

overridevirtual

Set minimap size scale.

Parameters

scale Size multiplier (0.1f to 0.3f typical)

Implements Olympe::ICanvasEditor.

Definition at line 201 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static(), and m_minimapSize.

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◆ SetMinimapVisible()

void Olympe::ImNodesCanvasEditor::SetMinimapVisible ( bool enabled )

overridevirtual

Enable/disable minimap rendering.

Parameters

enabled True to show minimap

Implements Olympe::ICanvasEditor.

Definition at line 196 of file ImNodesCanvasEditor.cpp.

References m_minimapVisible.

◆ SetPan()

void Olympe::ImNodesCanvasEditor::SetPan ( const ImVec2 & offset )

overridevirtual

Set pan offset.

Parameters

offset New pan offset

Calls EditorContextResetPanning()

Implements Olympe::ICanvasEditor.

Definition at line 92 of file ImNodesCanvasEditor.cpp.

References GetComponentTypeID_Static().

Referenced by PanBy(), and ResetPan().

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◆ SetZoom()

virtual void Olympe::ImNodesCanvasEditor::SetZoom	(	float	scale,
		const ImVec2 *	zoomCenter = `nullptr`
	)

inlineoverridevirtual

Set zoom level (no-op for imnodes)

This is a no-op because imnodes doesn't expose zoom control. If zoom is needed, use CustomCanvasEditor instead.

Implements Olympe::ICanvasEditor.

Definition at line 146 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static().

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◆ UpdateMinimapNodes()

virtual void Olympe::ImNodesCanvasEditor::UpdateMinimapNodes	(	const std::vector< std::tuple< int, float, float, float, float > > &	nodes,
		float	graphMinX,
		float	graphMaxX,
		float	graphMinY,
		float	graphMaxY
	)

inlineoverridevirtual

Update minimap nodes (no-op for imnodes)

ImNodes manages minimap data internally, so this is unused

Implements Olympe::ICanvasEditor.

Definition at line 324 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static().

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◆ UpdateMinimapViewport()

virtual void Olympe::ImNodesCanvasEditor::UpdateMinimapViewport	(	float	viewMinX,
		float	viewMaxX,
		float	viewMinY,
		float	viewMaxY,
		float	graphMinX,
		float	graphMaxX,
		float	graphMinY,
		float	graphMaxY
	)

inlineoverridevirtual

Update minimap viewport (no-op for imnodes)

ImNodes manages minimap viewport internally, so this is unused

Implements Olympe::ICanvasEditor.

Definition at line 336 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static().

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◆ ZoomBy()

virtual void Olympe::ImNodesCanvasEditor::ZoomBy	(	float	factor,
		const ImVec2 *	zoomCenter = `nullptr`
	)

inlineoverridevirtual

Zoom by multiplier (no-op for imnodes)

Implements Olympe::ICanvasEditor.

Definition at line 156 of file ImNodesCanvasEditor.h.

References GetComponentTypeID_Static().

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Member Data Documentation

◆ m_canvasScreenPos

ImVec2 Olympe::ImNodesCanvasEditor::m_canvasScreenPos

private

Definition at line 347 of file ImNodesCanvasEditor.h.

Referenced by CanvasToScreen(), GetCanvasScreenPos(), GetCanvasVisibleBounds(), GetGridConfig(), IsPointInCanvas(), RenderGrid(), ScreenToCanvas(), and SetCanvasScreenPos().

◆ m_canvasSize

ImVec2 Olympe::ImNodesCanvasEditor::m_canvasSize

private

Definition at line 348 of file ImNodesCanvasEditor.h.

Referenced by GetCanvasSize(), GetCanvasVisibleBounds(), GetGridConfig(), IsPointInCanvas(), RenderGrid(), and SetCanvasSize().

◆ m_gridVisible

bool Olympe::ImNodesCanvasEditor::m_gridVisible

private

Definition at line 350 of file ImNodesCanvasEditor.h.

Referenced by IsGridVisible(), RenderGrid(), and SetGridVisible().

◆ m_imnodesContext

ImNodesEditorContext* Olympe::ImNodesCanvasEditor::m_imnodesContext

private

Definition at line 349 of file ImNodesCanvasEditor.h.

Referenced by BeginRender().

◆ m_minimapPosition

int Olympe::ImNodesCanvasEditor::m_minimapPosition = ImNodesMiniMapLocation_BottomRight

private

Definition at line 355 of file ImNodesCanvasEditor.h.

Referenced by GetMinimapPosition(), RenderMinimap(), and SetMinimapPosition().

◆ m_minimapSize

float Olympe::ImNodesCanvasEditor::m_minimapSize = 0.15f

private

Definition at line 354 of file ImNodesCanvasEditor.h.

Referenced by GetMinimapSize(), RenderMinimap(), and SetMinimapSize().

◆ m_minimapVisible

bool Olympe::ImNodesCanvasEditor::m_minimapVisible = true

private

Definition at line 353 of file ImNodesCanvasEditor.h.

Referenced by IsMinimapVisible(), RenderMinimap(), and SetMinimapVisible().

◆ m_name

std::string Olympe::ImNodesCanvasEditor::m_name

private

Definition at line 346 of file ImNodesCanvasEditor.h.

Referenced by GetCanvasName().

The documentation for this class was generated from the following files:

Source/BlueprintEditor/Utilities/ImNodesCanvasEditor.h
Source/BlueprintEditor/Utilities/ImNodesCanvasEditor.cpp

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ImNodesCanvasEditor()

◆ ~ImNodesCanvasEditor()

Member Function Documentation

◆ BeginRender()

◆ CanvasToScreen()

◆ EditorToGrid()

◆ EndRender()

◆ GetCanvasName()

◆ GetCanvasScreenPos()

◆ GetCanvasSize()

◆ GetCanvasVisibleBounds()

◆ GetGridConfig()

◆ GetMinimapPosition()

◆ GetMinimapSize()

◆ GetPan()

◆ GetZoom()

◆ GetZoomLimits()

◆ GridToEditor()

◆ IsCanvasHovered()

◆ IsGridVisible()

◆ IsMinimapVisible()

◆ IsPointInCanvas()

◆ PanBy()

◆ RenderGrid()

◆ RenderMinimap()

◆ ResetPan()

◆ ResetView()

◆ ResetZoom()

◆ ScreenToCanvas()

◆ SetCanvasScreenPos()

◆ SetCanvasSize()

◆ SetGridVisible()

◆ SetMinimapPosition()

◆ SetMinimapSize()

◆ SetMinimapVisible()

◆ SetPan()

◆ SetZoom()

◆ UpdateMinimapNodes()

◆ UpdateMinimapViewport()

◆ ZoomBy()

Member Data Documentation

◆ m_canvasScreenPos

◆ m_canvasSize

◆ m_gridVisible

◆ m_imnodesContext

◆ m_minimapPosition

◆ m_minimapSize

◆ m_minimapVisible

◆ m_name