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vtkBlockItem Class Reference

a vtkContextItem that draws a block (optional label). More...

#include <vtkBlockItem.h>

Inheritance diagram for vtkBlockItem:
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Collaboration diagram for vtkBlockItem:
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Public Types

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. More...
 
vtkBlockItemNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
bool Paint (vtkContext2D *painter) override
 Paint event for the item. More...
 
bool Hit (const vtkContextMouseEvent &mouse) override
 Returns true if the supplied x, y coordinate is inside the item. More...
 
bool MouseEnterEvent (const vtkContextMouseEvent &mouse) override
 Mouse enter event. More...
 
bool MouseMoveEvent (const vtkContextMouseEvent &mouse) override
 Mouse move event. More...
 
bool MouseLeaveEvent (const vtkContextMouseEvent &mouse) override
 Mouse leave event. More...
 
bool MouseButtonPressEvent (const vtkContextMouseEvent &mouse) override
 Mouse button down event. More...
 
bool MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse) override
 Mouse button release event. More...
 
virtual void SetLabel (const vtkStdString &label)
 Set the block label. More...
 
virtual vtkStdString GetLabel ()
 Get the block label. More...
 
virtual void SetDimensions (float, float, float, float)
 Set the dimensions of the block, elements 0 and 1 are the x and y coordinate of the bottom corner. More...
 
virtual void SetDimensions (float[4])
 
virtual floatGetDimensions ()
 Get the dimensions of the block, elements 0 and 1 are the x and y coordinate of the bottom corner. More...
 
virtual void GetDimensions (float &, float &, float &, float &)
 
virtual void GetDimensions (float[4])
 
void SetScalarFunctor (double(*scalarFunction)(double, double))
 
- Public Member Functions inherited from vtkContextItem
vtkContextItemNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses. More...
 
virtual double GetOpacity ()
 Get the opacity of the item. More...
 
virtual void SetOpacity (double)
 Set the opacity of the item. More...
 
- Public Member Functions inherited from vtkAbstractContextItem
vtkAbstractContextItemNewInstance () const
 
virtual void Update ()
 Perform any updates to the item that may be necessary before rendering. More...
 
virtual bool PaintChildren (vtkContext2D *painter)
 Paint the children of the item, should be called whenever the children need to be rendered. More...
 
virtual void ReleaseGraphicsResources ()
 Release graphics resources hold by the item. More...
 
vtkIdType AddItem (vtkAbstractContextItem *item)
 Add child items to this item. More...
 
bool RemoveItem (vtkAbstractContextItem *item)
 Remove child item from this item. More...
 
bool RemoveItem (vtkIdType index)
 Remove child item from this item. More...
 
vtkAbstractContextItemGetItem (vtkIdType index)
 Get the item at the specified index. More...
 
vtkIdType GetItemIndex (vtkAbstractContextItem *item)
 Get the index of the specified item in itemIndex. More...
 
vtkIdType GetNumberOfItems ()
 Get the number of child items. More...
 
void ClearItems ()
 Remove all child items from this item. More...
 
vtkIdType Raise (vtkIdType index)
 Raises the child to the top of the item's stack. More...
 
virtual vtkIdType StackAbove (vtkIdType index, vtkIdType under)
 Raises the child above the under sibling. More...
 
vtkIdType Lower (vtkIdType index)
 Lowers the child to the bottom of the item's stack. More...
 
virtual vtkIdType StackUnder (vtkIdType child, vtkIdType above)
 Lowers the child under the above sibling. More...
 
virtual vtkAbstractContextItemGetPickedItem (const vtkContextMouseEvent &mouse)
 Return the item under the mouse. More...
 
virtual bool MouseDoubleClickEvent (const vtkContextMouseEvent &mouse)
 Mouse button double click event. More...
 
virtual bool MouseWheelEvent (const vtkContextMouseEvent &mouse, int delta)
 Mouse wheel event, positive delta indicates forward movement of the wheel. More...
 
virtual bool KeyPressEvent (const vtkContextKeyEvent &key)
 Key press event. More...
 
virtual bool KeyReleaseEvent (const vtkContextKeyEvent &key)
 Key release event. More...
 
virtual void SetScene (vtkContextScene *scene)
 Set the vtkContextScene for the item, always set for an item in a scene. More...
 
vtkContextSceneGetScene ()
 Get the vtkContextScene for the item, always set for an item in a scene. More...
 
virtual void SetParent (vtkAbstractContextItem *parent)
 Set the parent item. More...
 
vtkAbstractContextItemGetParent ()
 Get the parent item. More...
 
virtual vtkVector2f MapToParent (const vtkVector2f &point)
 Maps the point to the parent coordinate system. More...
 
virtual vtkVector2f MapFromParent (const vtkVector2f &point)
 Maps the point from the parent coordinate system. More...
 
virtual vtkVector2f MapToScene (const vtkVector2f &point)
 Maps the point to the scene coordinate system. More...
 
virtual vtkVector2f MapFromScene (const vtkVector2f &point)
 Maps the point from the scene coordinate system. More...
 
virtual bool GetVisible ()
 Get the visibility of the item (should it be drawn). More...
 
virtual void SetVisible (bool)
 Set the visibility of the item (should it be drawn). More...
 
virtual bool GetInteractive ()
 Get if the item is interactive (should respond to mouse events). More...
 
virtual void SetInteractive (bool)
 Set if the item is interactive (should respond to mouse events). 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 vtkBlockItemSafeDownCast (vtkObjectBase *o)
 
static vtkBlockItemNew ()
 
- 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. 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
 
 vtkBlockItem ()
 
 ~vtkBlockItem () override
 
- Protected Member Functions inherited from vtkContextItem
 vtkContextItem ()
 
 ~vtkContextItem () override
 
- Protected Member Functions inherited from vtkAbstractContextItem
 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. 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

float Dimensions [4]
 
vtkStdString Label
 
bool MouseOver
 
double(* scalarFunction )(double, double)
 
- Protected Attributes inherited from vtkContextItem
double Opacity
 
- Protected Attributes inherited from vtkAbstractContextItem
vtkContextSceneScene
 Point to the scene the item is on - can be null. More...
 
vtkAbstractContextItemParent
 Point to the parent item - can be null. More...
 
vtkContextScenePrivateChildren
 This structure provides a list of children, along with convenience functions to paint the children etc. More...
 
bool Visible
 Store the visibility of the item (default is true). More...
 
bool Interactive
 Store whether the item should respond to interactions (default is true). More...
 
- Protected Attributes inherited from vtkObject
bool Debug
 
vtkTimeStamp MTime
 
vtkSubjectHelper * SubjectHelper
 
- Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32 ReferenceCount
 
vtkWeakPointerBase ** WeakPointers
 

Detailed Description

a vtkContextItem that draws a block (optional label).

This is a vtkContextItem that can be placed into a vtkContextScene. It draws a block of the given dimensions, and reacts to mouse events.

Tests:
vtkBlockItem (Tests)

Definition at line 37 of file vtkBlockItem.h.

Member Typedef Documentation

◆ Superclass

Definition at line 40 of file vtkBlockItem.h.

Constructor & Destructor Documentation

◆ vtkBlockItem()

vtkBlockItem::vtkBlockItem ( )
protected

◆ ~vtkBlockItem()

vtkBlockItem::~vtkBlockItem ( )
overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkBlockItem::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.

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkBlockItem::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkContextItem.

◆ NewInstance()

vtkBlockItem* vtkBlockItem::NewInstance ( ) const

◆ PrintSelf()

void vtkBlockItem::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 vtkAbstractContextItem.

◆ New()

static vtkBlockItem* vtkBlockItem::New ( )
static

◆ Paint()

bool vtkBlockItem::Paint ( vtkContext2D painter)
overridevirtual

Paint event for the item.

Reimplemented from vtkAbstractContextItem.

◆ Hit()

bool vtkBlockItem::Hit ( const vtkContextMouseEvent mouse)
overridevirtual

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

Reimplemented from vtkAbstractContextItem.

◆ MouseEnterEvent()

bool vtkBlockItem::MouseEnterEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse enter event.

Reimplemented from vtkAbstractContextItem.

◆ MouseMoveEvent()

bool vtkBlockItem::MouseMoveEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse move event.

Reimplemented from vtkAbstractContextItem.

◆ MouseLeaveEvent()

bool vtkBlockItem::MouseLeaveEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse leave event.

Reimplemented from vtkAbstractContextItem.

◆ MouseButtonPressEvent()

bool vtkBlockItem::MouseButtonPressEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button down event.

Reimplemented from vtkAbstractContextItem.

◆ MouseButtonReleaseEvent()

bool vtkBlockItem::MouseButtonReleaseEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button release event.

Reimplemented from vtkAbstractContextItem.

◆ SetLabel()

virtual void vtkBlockItem::SetLabel ( const vtkStdString label)
virtual

Set the block label.

◆ GetLabel()

virtual vtkStdString vtkBlockItem::GetLabel ( )
virtual

Get the block label.

◆ SetDimensions() [1/2]

virtual void vtkBlockItem::SetDimensions ( float  ,
float  ,
float  ,
float   
)
virtual

Set the dimensions of the block, elements 0 and 1 are the x and y coordinate of the bottom corner.

Elements 2 and 3 are the width and height. Initial value is (0,0,0,0).

◆ SetDimensions() [2/2]

virtual void vtkBlockItem::SetDimensions ( float  [4])
virtual

◆ GetDimensions() [1/3]

virtual float* vtkBlockItem::GetDimensions ( )
virtual

Get the dimensions of the block, elements 0 and 1 are the x and y coordinate of the bottom corner.

Elements 2 and 3 are the width and height. Initial value is (0,0,0,0)

◆ GetDimensions() [2/3]

virtual void vtkBlockItem::GetDimensions ( float ,
float ,
float ,
float  
)
virtual

◆ GetDimensions() [3/3]

virtual void vtkBlockItem::GetDimensions ( float  [4])
virtual

◆ SetScalarFunctor()

void vtkBlockItem::SetScalarFunctor ( double(*)(double, double scalarFunction)

Member Data Documentation

◆ Dimensions

float vtkBlockItem::Dimensions[4]
protected

Definition at line 116 of file vtkBlockItem.h.

◆ Label

vtkStdString vtkBlockItem::Label
protected

Definition at line 118 of file vtkBlockItem.h.

◆ MouseOver

bool vtkBlockItem::MouseOver
protected

Definition at line 120 of file vtkBlockItem.h.

◆ scalarFunction

double(* vtkBlockItem::scalarFunction) (double, double)
protected

Definition at line 123 of file vtkBlockItem.h.


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