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vtkPen Class Reference

provides a pen that draws the outlines of shapes drawn by vtkContext2D. More...

#include <vtkPen.h>

Inheritance diagram for vtkPen:
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Collaboration diagram for vtkPen:
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Public Types

enum  {
  NO_PEN, SOLID_LINE, DASH_LINE, DOT_LINE,
  DASH_DOT_LINE, DASH_DOT_DOT_LINE, DENSE_DOT_LINE
}
 Enum of the available line types. More...
 
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. More...
 
vtkPenNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
void SetLineType (int type)
 Set the type of line that the pen should draw. More...
 
int GetLineType ()
 Get the type of line that the pen will draw. More...
 
void SetColorF (double color[3])
 Set the color of the brush with three component doubles (RGB), ranging from 0.0 to 1.0. More...
 
void SetColorF (double r, double g, double b)
 Set the color of the brush with three component doubles (RGB), ranging from 0.0 to 1.0. More...
 
void SetColorF (double r, double g, double b, double a)
 Set the color of the brush with four component doubles (RGBA), ranging from 0.0 to 1.0. More...
 
void SetOpacityF (double a)
 Set the opacity with a double, ranging from 0.0 (transparent) to 1.0 (opaque). More...
 
void SetColor (unsigned char color[3])
 Set the color of the brush with three component unsigned chars (RGB), ranging from 0 to 255. More...
 
void SetColor (unsigned char r, unsigned char g, unsigned char b)
 Set the color of the brush with three component unsigned chars (RGB), ranging from 0 to 255. More...
 
void SetColor (unsigned char r, unsigned char g, unsigned char b, unsigned char a)
 Set the color of the brush with four component unsigned chars (RGBA), ranging from 0 to 255. More...
 
void SetColor (const vtkColor4ub &color)
 
void SetOpacity (unsigned char a)
 Set the opacity with an unsigned char, ranging from 0 (transparent) to 255 (opaque). More...
 
void GetColorF (double color[3])
 Get the color of the brush - expects a double of length 3 to copy into. More...
 
void GetColor (unsigned char color[3])
 Get the color of the brush - expects an unsigned char of length 3. More...
 
vtkColor4ub GetColorObject ()
 Get the color of the pen. More...
 
unsigned char GetOpacity ()
 Get the opacity (unsigned char), ranging from 0 (transparent) to 255 (opaque). More...
 
unsigned char * GetColor ()
 Get the color of the brush - gives a pointer to the underlying data. More...
 
virtual void SetWidth (float)
 Set/Get the width of the pen. More...
 
virtual float GetWidth ()
 
void DeepCopy (vtkPen *pen)
 Make a deep copy of the supplied pen. More...
 
- Public Member Functions inherited from vtkObject
 vtkBaseTypeMacro (vtkObject, vtkObjectBase)
 
virtual void DebugOn ()
 Turn debugging output on. More...
 
virtual void DebugOff ()
 Turn debugging output off. More...
 
bool GetDebug ()
 Get the value of the debug flag. More...
 
void SetDebug (bool debugFlag)
 Set the value of the debug flag. More...
 
virtual void Modified ()
 Update the modification time for this object. More...
 
virtual vtkMTimeType GetMTime ()
 Return this object's modified time. More...
 
unsigned long AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
 Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...
 
unsigned long AddObserver (const char *event, vtkCommand *, float priority=0.0f)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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. More...
 
template<class U , class T >
unsigned long AddObserver (unsigned long event, U observer, void(T::*callback)(vtkObject *, unsigned long, void *), float priority=0.0f)
 
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. More...
 
int InvokeEvent (unsigned long event, void *callData)
 This method invokes an event and return whether the event was aborted or not. More...
 
int InvokeEvent (const char *event, void *callData)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. More...
 
virtual void Delete ()
 Delete a VTK object. More...
 
virtual void FastDelete ()
 Delete a reference to this object. More...
 
void InitializeObjectBase ()
 
void Print (ostream &os)
 Print an object to an ostream. More...
 
virtual void PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
virtual void Register (vtkObjectBase *o)
 Increase the reference count (mark as used by another object). More...
 
virtual void UnRegister (vtkObjectBase *o)
 Decrease the reference count (release by another object). More...
 
int GetReferenceCount ()
 Return the current reference count of this object. More...
 
void SetReferenceCount (int)
 Sets the reference count. More...
 
void PrintRevisions (ostream &)
 Legacy. More...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkPenSafeDownCast (vtkObjectBase *o)
 
static vtkPenNew ()
 
- 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. More...
 
static void BreakOnError ()
 This method is called when vtkErrorMacro executes. More...
 
static void SetGlobalWarningDisplay (int val)
 This is a global flag that controls whether any debug, warning or error messages are displayed. More...
 
static void GlobalWarningDisplayOn ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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. More...
 
static vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkPen ()
 
 ~vtkPen () 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. More...
 
void InternalReleaseFocus ()
 
- Protected Member Functions inherited from vtkObjectBase
 vtkObjectBase ()
 
virtual ~vtkObjectBase ()
 
virtual void CollectRevisions (ostream &)
 
virtual void ReportReferences (vtkGarbageCollector *)
 
 vtkObjectBase (const vtkObjectBase &)
 
void operator= (const vtkObjectBase &)
 

Protected Attributes

unsigned char * Color
 Storage of the color in RGBA format (0-255 per channel). More...
 
vtkColor4ub PenColor
 
float Width
 Store the width of the pen in pixels. More...
 
int LineType
 The type of line to be drawn with this pen. More...
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t > ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

provides a pen that draws the outlines of shapes drawn by vtkContext2D.

The vtkPen defines the outline of shapes that are drawn by vtkContext2D. The color is stored as four unsigned chars (RGBA), where the opacity defaults to 255, but can be modified separately to the other components. Ideally we would use a lightweight color class to store and pass around colors.

Tests:
vtkPen (Tests)

Definition at line 39 of file vtkPen.h.

Member Typedef Documentation

◆ Superclass

Definition at line 42 of file vtkPen.h.

Member Enumeration Documentation

◆ anonymous enum

anonymous enum

Enum of the available line types.

Enumerator
NO_PEN 
SOLID_LINE 
DASH_LINE 
DOT_LINE 
DASH_DOT_LINE 
DASH_DOT_DOT_LINE 
DENSE_DOT_LINE 

Definition at line 50 of file vtkPen.h.

Constructor & Destructor Documentation

◆ vtkPen()

vtkPen::vtkPen ( )
protected

◆ ~vtkPen()

vtkPen::~vtkPen ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkPen::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 vtkObjectBase.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkPen::NewInstanceInternal ( ) const
protectedvirtual

◆ NewInstance()

vtkPen* vtkPen::NewInstance ( ) const

◆ PrintSelf()

void vtkPen::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 vtkObject.

◆ New()

static vtkPen* vtkPen::New ( )
static

◆ SetLineType()

void vtkPen::SetLineType ( int  type)

Set the type of line that the pen should draw.

The default is solid (1).

◆ GetLineType()

int vtkPen::GetLineType ( )

Get the type of line that the pen will draw.

◆ SetColorF() [1/3]

void vtkPen::SetColorF ( double  color[3])

Set the color of the brush with three component doubles (RGB), ranging from 0.0 to 1.0.

◆ SetColorF() [2/3]

void vtkPen::SetColorF ( double  r,
double  g,
double  b 
)

Set the color of the brush with three component doubles (RGB), ranging from 0.0 to 1.0.

◆ SetColorF() [3/3]

void vtkPen::SetColorF ( double  r,
double  g,
double  b,
double  a 
)

Set the color of the brush with four component doubles (RGBA), ranging from 0.0 to 1.0.

◆ SetOpacityF()

void vtkPen::SetOpacityF ( double  a)

Set the opacity with a double, ranging from 0.0 (transparent) to 1.0 (opaque).

◆ SetColor() [1/4]

void vtkPen::SetColor ( unsigned char  color[3])

Set the color of the brush with three component unsigned chars (RGB), ranging from 0 to 255.

◆ SetColor() [2/4]

void vtkPen::SetColor ( unsigned char  r,
unsigned char  g,
unsigned char  b 
)

Set the color of the brush with three component unsigned chars (RGB), ranging from 0 to 255.

◆ SetColor() [3/4]

void vtkPen::SetColor ( unsigned char  r,
unsigned char  g,
unsigned char  b,
unsigned char  a 
)

Set the color of the brush with four component unsigned chars (RGBA), ranging from 0 to 255.

◆ SetColor() [4/4]

void vtkPen::SetColor ( const vtkColor4ub color)

◆ SetOpacity()

void vtkPen::SetOpacity ( unsigned char  a)

Set the opacity with an unsigned char, ranging from 0 (transparent) to 255 (opaque).

◆ GetColorF()

void vtkPen::GetColorF ( double  color[3])

Get the color of the brush - expects a double of length 3 to copy into.

◆ GetColor() [1/2]

void vtkPen::GetColor ( unsigned char  color[3])

Get the color of the brush - expects an unsigned char of length 3.

◆ GetColorObject()

vtkColor4ub vtkPen::GetColorObject ( )

Get the color of the pen.

◆ GetOpacity()

unsigned char vtkPen::GetOpacity ( )

Get the opacity (unsigned char), ranging from 0 (transparent) to 255 (opaque).

◆ GetColor() [2/2]

unsigned char* vtkPen::GetColor ( )
inline

Get the color of the brush - gives a pointer to the underlying data.

Definition at line 145 of file vtkPen.h.

◆ SetWidth()

virtual void vtkPen::SetWidth ( float  )
virtual

Set/Get the width of the pen.

◆ GetWidth()

virtual float vtkPen::GetWidth ( )
virtual

◆ DeepCopy()

void vtkPen::DeepCopy ( vtkPen pen)

Make a deep copy of the supplied pen.

Member Data Documentation

◆ Color

unsigned char* vtkPen::Color
protected

Storage of the color in RGBA format (0-255 per channel).

Definition at line 168 of file vtkPen.h.

◆ PenColor

vtkColor4ub vtkPen::PenColor
protected

Definition at line 169 of file vtkPen.h.

◆ Width

float vtkPen::Width
protected

Store the width of the pen in pixels.

Definition at line 175 of file vtkPen.h.

◆ LineType

int vtkPen::LineType
protected

The type of line to be drawn with this pen.

Definition at line 180 of file vtkPen.h.


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