VTK  9.1.0
Public Types | Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
vtkChartLegend Class Reference

draw the chart legend More...

#include <vtkChartLegend.h>

Inheritance diagram for vtkChartLegend:
[legend]
Collaboration diagram for vtkChartLegend:
[legend]

Public Types

enum  {
  LEFT = 0 , CENTER , RIGHT , TOP ,
  BOTTOM , CUSTOM
}
 
typedef vtkContextItem Superclass
 
- Public Types inherited from vtkContextItem
typedef vtkAbstractContextItem Superclass
 
- Public Types inherited from vtkAbstractContextItem
typedef vtkObject Superclass
 

Public Member Functions

virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkChartLegendNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void SetPoint (const vtkVector2f &point)
 Set point the legend box is anchored to.
 
const vtkVector2fGetPointVector ()
 Get point the legend box is anchored to.
 
virtual void SetLabelSize (int size)
 Set the point size of the label text.
 
virtual int GetLabelSize ()
 Get the point size of the label text.
 
void SetChart (vtkChart *chart)
 Set the chart that the legend belongs to and will draw the legend for.
 
vtkChartGetChart ()
 Get the chart that the legend belongs to and will draw the legend for.
 
void Update () override
 Update the geometry of the axis.
 
bool Paint (vtkContext2D *painter) override
 Paint event for the axis, called whenever the axis needs to be drawn.
 
virtual vtkRectf GetBoundingRect (vtkContext2D *painter)
 Request the space the legend requires to be drawn.
 
vtkPenGetPen ()
 Get the pen used to draw the legend outline.
 
vtkBrushGetBrush ()
 Get the brush used to draw the legend background.
 
vtkTextPropertyGetLabelProperties ()
 Get the vtkTextProperty for the legend's labels.
 
bool Hit (const vtkContextMouseEvent &mouse) override
 Return true if the supplied x, y coordinate is inside the item.
 
bool MouseMoveEvent (const vtkContextMouseEvent &mouse) override
 Mouse move event.
 
bool MouseButtonPressEvent (const vtkContextMouseEvent &mouse) override
 Mouse button down event.
 
bool MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse) override
 Mouse button release event.
 
virtual void SetPoint (float, float)
 Set point the legend box is anchored to.
 
void SetPoint (float[2])
 Set point the legend box is anchored to.
 
virtual float * GetPoint ()
 Get point the legend box is anchored to.
 
virtual void GetPoint (float &, float &)
 Get point the legend box is anchored to.
 
virtual void GetPoint (float[2])
 Get point the legend box is anchored to.
 
virtual void SetHorizontalAlignment (int)
 Set the horizontal alignment of the legend to the point specified.
 
virtual int GetHorizontalAlignment ()
 Get the horizontal alignment of the legend to the point specified.
 
virtual void SetVerticalAlignment (int)
 Set the vertical alignment of the legend to the point specified.
 
virtual int GetVerticalAlignment ()
 Get the vertical alignment of the legend to the point specified.
 
virtual void SetPadding (int)
 Set the padding between legend marks, default is 5.
 
virtual int GetPadding ()
 Get the padding between legend marks.
 
virtual void SetSymbolWidth (int)
 Set the symbol width, default is 15.
 
virtual int GetSymbolWidth ()
 Get the legend symbol width.
 
virtual void SetInline (bool)
 Get/set if the legend should be drawn inline (inside the chart), or not.
 
virtual bool GetInline ()
 Get/set if the legend should be drawn inline (inside the chart), or not.
 
virtual void SetDragEnabled (bool)
 Get/set if the legend can be dragged with the mouse button, or not.
 
virtual bool GetDragEnabled ()
 Get/set if the legend can be dragged with the mouse button, or not.
 
virtual void SetCacheBounds (bool)
 Toggle whether or not this legend should attempt to cache its position and size.
 
virtual bool GetCacheBounds ()
 Toggle whether or not this legend should attempt to cache its position and size.
 
virtual void CacheBoundsOn ()
 Toggle whether or not this legend should attempt to cache its position and size.
 
virtual void CacheBoundsOff ()
 Toggle whether or not this legend should attempt to cache its position and size.
 
- Public Member Functions inherited from vtkContextItem
virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkContextItemNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
virtual void SetTransform (vtkContextTransform *)
 Set the transform of the item.
 
virtual double GetOpacity ()
 Get the opacity of the item.
 
virtual void SetOpacity (double)
 Set the opacity of the item.
 
- Public Member Functions inherited from vtkAbstractContextItem
virtual vtkTypeBool IsA (const char *type)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
vtkAbstractContextItemNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
virtual void Update ()
 Perform any updates to the item that may be necessary before rendering.
 
virtual bool Paint (vtkContext2D *painter)
 Paint event for the item, called whenever the item needs to be drawn.
 
virtual bool PaintChildren (vtkContext2D *painter)
 Paint the children of the item, should be called whenever the children need to be rendered.
 
virtual void ReleaseGraphicsResources ()
 Release graphics resources hold by the item.
 
vtkIdType AddItem (vtkAbstractContextItem *item)
 Add child items to this item.
 
bool RemoveItem (vtkAbstractContextItem *item)
 Remove child item from this item.
 
bool RemoveItem (vtkIdType index)
 Remove child item from this item.
 
vtkAbstractContextItemGetItem (vtkIdType index)
 Get the item at the specified index.
 
vtkIdType GetItemIndex (vtkAbstractContextItem *item)
 Get the index of the specified item in itemIndex.
 
vtkIdType GetNumberOfItems ()
 Get the number of child items.
 
void ClearItems ()
 Remove all child items from this item.
 
vtkIdType Raise (vtkIdType index)
 Raises the child to the top of the item's stack.
 
virtual vtkIdType StackAbove (vtkIdType index, vtkIdType under)
 Raises the child above the under sibling.
 
vtkIdType Lower (vtkIdType index)
 Lowers the child to the bottom of the item's stack.
 
virtual vtkIdType StackUnder (vtkIdType child, vtkIdType above)
 Lowers the child under the above sibling.
 
virtual bool Hit (const vtkContextMouseEvent &mouse)
 Return true if the supplied x, y coordinate is inside the item.
 
virtual vtkAbstractContextItemGetPickedItem (const vtkContextMouseEvent &mouse)
 Return the item under the mouse.
 
virtual bool MouseEnterEvent (const vtkContextMouseEvent &mouse)
 Mouse enter event.
 
virtual bool MouseMoveEvent (const vtkContextMouseEvent &mouse)
 Mouse move event.
 
virtual bool MouseLeaveEvent (const vtkContextMouseEvent &mouse)
 Mouse leave event.
 
virtual bool MouseButtonPressEvent (const vtkContextMouseEvent &mouse)
 Mouse button down event Return true if the item holds the event, false if the event can be propagated to other items.
 
virtual bool MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse)
 Mouse button release event.
 
virtual bool MouseDoubleClickEvent (const vtkContextMouseEvent &mouse)
 Mouse button double click event.
 
virtual bool MouseWheelEvent (const vtkContextMouseEvent &mouse, int delta)
 Mouse wheel event, positive delta indicates forward movement of the wheel.
 
virtual bool KeyPressEvent (const vtkContextKeyEvent &key)
 Key press event.
 
virtual bool KeyReleaseEvent (const vtkContextKeyEvent &key)
 Key release event.
 
virtual void SetScene (vtkContextScene *scene)
 Set the vtkContextScene for the item, always set for an item in a scene.
 
vtkContextSceneGetScene ()
 Get the vtkContextScene for the item, always set for an item in a scene.
 
virtual void SetParent (vtkAbstractContextItem *parent)
 Set the parent item.
 
vtkAbstractContextItemGetParent ()
 Get the parent item.
 
virtual vtkVector2f MapToParent (const vtkVector2f &point)
 Maps the point to the parent coordinate system.
 
virtual vtkVector2f MapFromParent (const vtkVector2f &point)
 Maps the point from the parent coordinate system.
 
virtual vtkVector2f MapToScene (const vtkVector2f &point)
 Maps the point to the scene coordinate system.
 
virtual vtkVector2f MapFromScene (const vtkVector2f &point)
 Maps the point from the scene coordinate system.
 
virtual bool GetVisible ()
 Get the visibility of the item (should it be drawn).
 
virtual void SetVisible (bool)
 Set the visibility of the item (should it be drawn).
 
virtual bool GetInteractive ()
 Get if the item is interactive (should respond to mouse events).
 
virtual void SetInteractive (bool)
 Set if the item is interactive (should respond to mouse events).
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on.
 
virtual void DebugOff ()
 Turn debugging output off.
 
bool GetDebug ()
 Get the value of the debug flag.
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag.
 
virtual void Modified ()
 Update the modification time for this object.
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time.
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void RemoveObserver (unsigned long tag)
 
void RemoveObservers (unsigned long event)
 
void RemoveObservers (const char *event)
 
void RemoveAllObservers ()
 
vtkTypeBool HasObserver (unsigned long event)
 
vtkTypeBool HasObserver (const char *event)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkCommandGetCommand (unsigned long tag)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObserver (vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
void RemoveObservers (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object.
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Overloads to AddObserver that allow developers to add class member functions as callbacks for events.
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, bool(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 Allow user to set the AbortFlagOn() with the return value of the callback method.
 
int InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
int InvokeEvent (const char *event, void *callData)
 This method invokes an event and return whether the event was aborted or not.
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string.
 
virtual vtkTypeBool IsA (const char *name)
 Return 1 if this class is the same type of (or a subclass of) the named class.
 
virtual vtkIdType GetNumberOfGenerationsFromBase (const char *name)
 Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
 
virtual void Delete ()
 Delete a VTK object.
 
virtual void FastDelete ()
 Delete a reference to this object.
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream.
 
virtual void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object).
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object).
 
int GetReferenceCount ()
 Return the current reference count of this object.
 
void SetReferenceCount (int)
 Sets the reference count.
 
bool GetIsInMemkind () const
 A local state flag that remembers whether this object lives in the normal or extended memory space.
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 Methods invoked by print to print information about the object including superclasses.
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkChartLegendSafeDownCast (vtkObjectBase *o)
 
static vtkChartLegendNew ()
 Creates a 2D Chart object.
 
- Static Public Member Functions inherited from vtkContextItem
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkContextItemSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkAbstractContextItem
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkAbstractContextItemSafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes.
 
static void SetGlobalWarningDisplay (int val)
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOn ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static void GlobalWarningDisplayOff ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
static int GetGlobalWarningDisplay ()
 This is a global flag that controls whether any debug, warning or error messages are displayed.
 
- Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool IsTypeOf (const char *name)
 Return 1 if this class type is the same type of (or a subclass of) the named class.
 
static vtkIdType GetNumberOfGenerationsFromBaseType (const char *name)
 Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on.
 
static void SetMemkindDirectory (const char *directoryname)
 The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.
 
static bool GetUsingMemkind ()
 A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkChartLegend ()
 
 ~vtkChartLegend () override
 
- Protected Member Functions inherited from vtkContextItem
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkContextItem ()=default
 
 ~vtkContextItem () override=default
 
- Protected Member Functions inherited from vtkAbstractContextItem
virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkAbstractContextItem ()
 
 ~vtkAbstractContextItem () override
 
- Protected Member Functions inherited from vtkObject
 vtkObject ()
 
 ~vtkObject () override
 
void RegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override
 
void InternalGrabFocus (vtkCommand *mouseEvents, vtkCommand *keypressEvents=nullptr)
 These methods allow a command to exclusively grab all events.
 
void InternalReleaseFocus ()
 These methods allow a command to exclusively grab all events.
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void RegisterInternal (vtkObjectBase *, vtkTypeBool check)
 
virtual void UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

float * Point
 
int HorizontalAlignment
 
int VerticalAlignment
 
vtkNew< vtkPenPen
 The pen used to draw the legend box.
 
vtkNew< vtkBrushBrush
 The brush used to render the background of the legend.
 
vtkNew< vtkTextPropertyLabelProperties
 The text properties of the labels used in the legend.
 
bool DragEnabled
 Should we move the legend box around in response to the mouse drag?
 
bool CacheBounds
 Should the legend attempt to avoid recalculating its position & bounds unnecessarily?
 
int Button
 Last button to be pressed.
 
vtkTimeStamp PlotTime
 
vtkTimeStamp RectTime
 
vtkRectf Rect
 
int Padding
 Padding between symbol and text.
 
int SymbolWidth
 Width of the symbols in pixels in the legend.
 
bool Inline
 Should the legend be drawn inline in its chart?
 
Private * Storage
 
- Protected Attributes inherited from vtkContextItem
double Opacity = 1.0
 
vtkContextTransformTransform = nullptr
 
- Protected Attributes inherited from vtkAbstractContextItem
vtkContextSceneScene
 Point to the scene the item is on - can be null.
 
vtkAbstractContextItemParent
 Point to the parent item - can be null.
 
vtkContextScenePrivateChildren
 This structure provides a list of children, along with convenience functions to paint the children etc.
 
bool Visible
 Store the visibility of the item (default is true).
 
bool Interactive
 Store whether the item should respond to interactions (default is true).
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Additional Inherited Members

- Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction GetCurrentMallocFunction ()
 
static vtkReallocingFunction GetCurrentReallocFunction ()
 
static vtkFreeingFunction GetCurrentFreeFunction ()
 
static vtkFreeingFunction GetAlternateFreeFunction ()
 

Detailed Description

draw the chart legend

The vtkChartLegend is drawn in screen coordinates. It is usually one of the last elements of a chart to be drawn. It renders the mark/line for each plot, and the plot labels.

Online Examples:

Definition at line 68 of file vtkChartLegend.h.

Member Typedef Documentation

◆ Superclass

Definition at line 71 of file vtkChartLegend.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum
Enumerator
LEFT 
CENTER 
RIGHT 
TOP 
BOTTOM 
CUSTOM 

Definition at line 93 of file vtkChartLegend.h.

Constructor & Destructor Documentation

◆ vtkChartLegend()

vtkChartLegend::vtkChartLegend ( )
protected

◆ ~vtkChartLegend()

vtkChartLegend::~vtkChartLegend ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

static vtkTypeBool vtkChartLegend::IsTypeOf ( const char *  type)
static

◆ IsA()

virtual vtkTypeBool vtkChartLegend::IsA ( const char *  name)
virtual

Return 1 if this class is the same type of (or a subclass of) the named class.

Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkContextItem.

Reimplemented in vtkCategoryLegend, and vtkColorLegend.

◆ SafeDownCast()

static vtkChartLegend * vtkChartLegend::SafeDownCast ( vtkObjectBase o)
static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkChartLegend::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkContextItem.

Reimplemented in vtkCategoryLegend, and vtkColorLegend.

◆ NewInstance()

vtkChartLegend * vtkChartLegend::NewInstance ( ) const

◆ PrintSelf()

void vtkChartLegend::PrintSelf ( ostream &  os,
vtkIndent  indent 
)
overridevirtual

Methods invoked by print to print information about the object including superclasses.

Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from vtkObjectBase.

Reimplemented in vtkColorLegend.

◆ New()

static vtkChartLegend * vtkChartLegend::New ( )
static

Creates a 2D Chart object.

◆ SetPoint() [1/3]

virtual void vtkChartLegend::SetPoint ( float  ,
float   
)
virtual

Set point the legend box is anchored to.

Reimplemented in vtkColorLegend.

◆ SetPoint() [2/3]

void vtkChartLegend::SetPoint ( float  [2])

Set point the legend box is anchored to.

◆ GetPoint() [1/3]

virtual float * vtkChartLegend::GetPoint ( )
virtual

Get point the legend box is anchored to.

◆ GetPoint() [2/3]

virtual void vtkChartLegend::GetPoint ( float &  ,
float &   
)
virtual

Get point the legend box is anchored to.

◆ GetPoint() [3/3]

virtual void vtkChartLegend::GetPoint ( float  [2])
virtual

Get point the legend box is anchored to.

◆ SetPoint() [3/3]

void vtkChartLegend::SetPoint ( const vtkVector2f point)

Set point the legend box is anchored to.

◆ GetPointVector()

const vtkVector2f & vtkChartLegend::GetPointVector ( )

Get point the legend box is anchored to.

◆ SetHorizontalAlignment()

virtual void vtkChartLegend::SetHorizontalAlignment ( int  )
virtual

Set the horizontal alignment of the legend to the point specified.

Valid values are LEFT, CENTER and RIGHT.

◆ GetHorizontalAlignment()

virtual int vtkChartLegend::GetHorizontalAlignment ( )
virtual

Get the horizontal alignment of the legend to the point specified.

◆ SetVerticalAlignment()

virtual void vtkChartLegend::SetVerticalAlignment ( int  )
virtual

Set the vertical alignment of the legend to the point specified.

Valid values are TOP, CENTER and BOTTOM.

◆ GetVerticalAlignment()

virtual int vtkChartLegend::GetVerticalAlignment ( )
virtual

Get the vertical alignment of the legend to the point specified.

◆ SetPadding()

virtual void vtkChartLegend::SetPadding ( int  )
virtual

Set the padding between legend marks, default is 5.

◆ GetPadding()

virtual int vtkChartLegend::GetPadding ( )
virtual

Get the padding between legend marks.

◆ SetSymbolWidth()

virtual void vtkChartLegend::SetSymbolWidth ( int  )
virtual

Set the symbol width, default is 15.

◆ GetSymbolWidth()

virtual int vtkChartLegend::GetSymbolWidth ( )
virtual

Get the legend symbol width.

◆ SetLabelSize()

virtual void vtkChartLegend::SetLabelSize ( int  size)
virtual

Set the point size of the label text.

◆ GetLabelSize()

virtual int vtkChartLegend::GetLabelSize ( )
virtual

Get the point size of the label text.

◆ SetInline()

virtual void vtkChartLegend::SetInline ( bool  )
virtual

Get/set if the legend should be drawn inline (inside the chart), or not.

True would generally request that the chart draws it inside the chart, false would adjust the chart axes and make space to draw the axes outside.

◆ GetInline()

virtual bool vtkChartLegend::GetInline ( )
virtual

Get/set if the legend should be drawn inline (inside the chart), or not.

True would generally request that the chart draws it inside the chart, false would adjust the chart axes and make space to draw the axes outside.

◆ SetDragEnabled()

virtual void vtkChartLegend::SetDragEnabled ( bool  )
virtual

Get/set if the legend can be dragged with the mouse button, or not.

True results in left click and drag causing the legend to move around the scene. False disables response to mouse events. The default is true.

◆ GetDragEnabled()

virtual bool vtkChartLegend::GetDragEnabled ( )
virtual

Get/set if the legend can be dragged with the mouse button, or not.

True results in left click and drag causing the legend to move around the scene. False disables response to mouse events. The default is true.

◆ SetChart()

void vtkChartLegend::SetChart ( vtkChart chart)

Set the chart that the legend belongs to and will draw the legend for.

◆ GetChart()

vtkChart * vtkChartLegend::GetChart ( )

Get the chart that the legend belongs to and will draw the legend for.

◆ Update()

void vtkChartLegend::Update ( )
overridevirtual

Update the geometry of the axis.

Takes care of setting up the tick mark locations etc. Should be called by the scene before rendering.

Reimplemented from vtkAbstractContextItem.

Reimplemented in vtkColorLegend.

◆ Paint()

bool vtkChartLegend::Paint ( vtkContext2D painter)
overridevirtual

Paint event for the axis, called whenever the axis needs to be drawn.

Reimplemented from vtkAbstractContextItem.

Reimplemented in vtkColorLegend.

◆ GetBoundingRect()

virtual vtkRectf vtkChartLegend::GetBoundingRect ( vtkContext2D painter)
virtual

Request the space the legend requires to be drawn.

This is returned as a vtkRect4f, with the corner being the offset from Point, and the width/ height being the total width/height required by the axis. In order to ensure the numbers are correct, Update() should be called first.

Reimplemented in vtkCategoryLegend, and vtkColorLegend.

◆ GetPen()

vtkPen * vtkChartLegend::GetPen ( )

Get the pen used to draw the legend outline.

◆ GetBrush()

vtkBrush * vtkChartLegend::GetBrush ( )

Get the brush used to draw the legend background.

◆ GetLabelProperties()

vtkTextProperty * vtkChartLegend::GetLabelProperties ( )

Get the vtkTextProperty for the legend's labels.

◆ SetCacheBounds()

virtual void vtkChartLegend::SetCacheBounds ( bool  )
virtual

Toggle whether or not this legend should attempt to cache its position and size.

The default value is true. If this value is set to false, the legend will recalculate its position and bounds every time it is drawn. If users will be able to zoom in or out on your legend, you may want to set this to false. Otherwise, the border around the legend may not resize appropriately.

◆ GetCacheBounds()

virtual bool vtkChartLegend::GetCacheBounds ( )
virtual

Toggle whether or not this legend should attempt to cache its position and size.

The default value is true. If this value is set to false, the legend will recalculate its position and bounds every time it is drawn. If users will be able to zoom in or out on your legend, you may want to set this to false. Otherwise, the border around the legend may not resize appropriately.

◆ CacheBoundsOn()

virtual void vtkChartLegend::CacheBoundsOn ( )
virtual

Toggle whether or not this legend should attempt to cache its position and size.

The default value is true. If this value is set to false, the legend will recalculate its position and bounds every time it is drawn. If users will be able to zoom in or out on your legend, you may want to set this to false. Otherwise, the border around the legend may not resize appropriately.

◆ CacheBoundsOff()

virtual void vtkChartLegend::CacheBoundsOff ( )
virtual

Toggle whether or not this legend should attempt to cache its position and size.

The default value is true. If this value is set to false, the legend will recalculate its position and bounds every time it is drawn. If users will be able to zoom in or out on your legend, you may want to set this to false. Otherwise, the border around the legend may not resize appropriately.

◆ Hit()

bool vtkChartLegend::Hit ( const vtkContextMouseEvent mouse)
overridevirtual

Return true if the supplied x, y coordinate is inside the item.

Reimplemented from vtkAbstractContextItem.

◆ MouseMoveEvent()

bool vtkChartLegend::MouseMoveEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse move event.

Reimplemented from vtkAbstractContextItem.

Reimplemented in vtkColorLegend.

◆ MouseButtonPressEvent()

bool vtkChartLegend::MouseButtonPressEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button down event.

Reimplemented from vtkAbstractContextItem.

◆ MouseButtonReleaseEvent()

bool vtkChartLegend::MouseButtonReleaseEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button release event.

Reimplemented from vtkAbstractContextItem.

Member Data Documentation

◆ Point

float* vtkChartLegend::Point
protected

Definition at line 284 of file vtkChartLegend.h.

◆ HorizontalAlignment

int vtkChartLegend::HorizontalAlignment
protected

Definition at line 285 of file vtkChartLegend.h.

◆ VerticalAlignment

int vtkChartLegend::VerticalAlignment
protected

Definition at line 286 of file vtkChartLegend.h.

◆ Pen

vtkNew<vtkPen> vtkChartLegend::Pen
protected

The pen used to draw the legend box.

Definition at line 291 of file vtkChartLegend.h.

◆ Brush

vtkNew<vtkBrush> vtkChartLegend::Brush
protected

The brush used to render the background of the legend.

Definition at line 296 of file vtkChartLegend.h.

◆ LabelProperties

vtkNew<vtkTextProperty> vtkChartLegend::LabelProperties
protected

The text properties of the labels used in the legend.

Definition at line 301 of file vtkChartLegend.h.

◆ DragEnabled

bool vtkChartLegend::DragEnabled
protected

Should we move the legend box around in response to the mouse drag?

Definition at line 306 of file vtkChartLegend.h.

◆ CacheBounds

bool vtkChartLegend::CacheBounds
protected

Should the legend attempt to avoid recalculating its position & bounds unnecessarily?

Definition at line 312 of file vtkChartLegend.h.

◆ Button

int vtkChartLegend::Button
protected

Last button to be pressed.

Definition at line 317 of file vtkChartLegend.h.

◆ PlotTime

vtkTimeStamp vtkChartLegend::PlotTime
protected

Definition at line 319 of file vtkChartLegend.h.

◆ RectTime

vtkTimeStamp vtkChartLegend::RectTime
protected

Definition at line 320 of file vtkChartLegend.h.

◆ Rect

vtkRectf vtkChartLegend::Rect
protected

Definition at line 322 of file vtkChartLegend.h.

◆ Padding

int vtkChartLegend::Padding
protected

Padding between symbol and text.

Definition at line 327 of file vtkChartLegend.h.

◆ SymbolWidth

int vtkChartLegend::SymbolWidth
protected

Width of the symbols in pixels in the legend.

Definition at line 332 of file vtkChartLegend.h.

◆ Inline

bool vtkChartLegend::Inline
protected

Should the legend be drawn inline in its chart?

Definition at line 337 of file vtkChartLegend.h.

◆ Storage

Private* vtkChartLegend::Storage
protected

Definition at line 341 of file vtkChartLegend.h.


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