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

draws a interactive polyline More...

#include <vtkEqualizerContextItem.h>

Inheritance diagram for vtkEqualizerContextItem:
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Collaboration diagram for vtkEqualizerContextItem:
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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.
 
vtkEqualizerContextItemNewInstance () const
 
void PrintSelf (ostream &os, vtkIndent indent) override
 Methods invoked by print to print information about the object including superclasses.
 
void InstantiateHandleRepresentation ()
 A stub method that is called from ParaView.
 
bool Paint (vtkContext2D *painter) override
 Paint event for the item, called whenever the item needs to be drawn.
 
bool Hit (const vtkContextMouseEvent &mouse) override
 Return true if the supplied x, y coordinate is inside the item.
 
bool MouseEnterEvent (const vtkContextMouseEvent &mouse) override
 Mouse enter event.
 
bool MouseMoveEvent (const vtkContextMouseEvent &mouse) override
 Mouse move event.
 
bool MouseLeaveEvent (const vtkContextMouseEvent &mouse) override
 Mouse leave event.
 
bool MouseButtonPressEvent (const vtkContextMouseEvent &mouse) override
 Mouse button down event Return true if the item holds the event, false if the event can be propagated to other items.
 
bool MouseButtonReleaseEvent (const vtkContextMouseEvent &mouse) override
 Mouse button release event.
 
void SetScene (vtkContextScene *scene) override
 Set the vtkContextScene for the item, always set for an item in a scene.
 
void SetPoints (const std::string &points)
 Set / Get anchor points in the following format "P1x,P1y;P2x,P2y; ... PNx,PNy;" where X denotes the frequency, typeid(x) = int and Y denotes the gain, typeid(y) = float "0,1;500,1;" by default.
 
std::string GetPoints () const
 
- 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 vtkEqualizerContextItemNew ()
 
static vtkTypeBool IsTypeOf (const char *type)
 
static vtkEqualizerContextItemSafeDownCast (vtkObjectBase *o)
 
- 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 Types

enum  MouseStates { NO_BUTTON = 0 , LEFT_BUTTON_PRESSED = 1 , RIGHT_BUTTON_PRESSED = 2 }
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () const
 
 vtkEqualizerContextItem ()
 
 ~vtkEqualizerContextItem () 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

MouseStates MouseState = NO_BUTTON
 
vtkNew< vtkPenPen
 
vtkNew< vtkBrushBrush
 
- 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

draws a interactive polyline

This is a vtkContextItem that can be placed into a vtkContextScene. It draws a polyline, and reacts to mouse events. Initially there are 2 points at the ends of the line. Provides the ability to add, remove, and move anchor points. This is not a universal polyline and is designed to adjust the reference points for the digital signal processing algorithm. So there are a number of features for interacting with the line:

Definition at line 44 of file vtkEqualizerContextItem.h.

Member Typedef Documentation

◆ Superclass

Definition at line 49 of file vtkEqualizerContextItem.h.

Member Enumeration Documentation

◆ MouseStates

Enumerator
NO_BUTTON 
LEFT_BUTTON_PRESSED 
RIGHT_BUTTON_PRESSED 

Definition at line 129 of file vtkEqualizerContextItem.h.

Constructor & Destructor Documentation

◆ vtkEqualizerContextItem()

vtkEqualizerContextItem::vtkEqualizerContextItem ( )
protected

◆ ~vtkEqualizerContextItem()

vtkEqualizerContextItem::~vtkEqualizerContextItem ( )
overrideprotected

Member Function Documentation

◆ New()

static vtkEqualizerContextItem * vtkEqualizerContextItem::New ( )
static

◆ IsTypeOf()

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

◆ IsA()

virtual vtkTypeBool vtkEqualizerContextItem::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 vtkEqualizerContextItem * vtkEqualizerContextItem::SafeDownCast ( vtkObjectBase o)
static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkEqualizerContextItem::NewInstanceInternal ( ) const
protectedvirtual

Reimplemented from vtkContextItem.

◆ NewInstance()

vtkEqualizerContextItem * vtkEqualizerContextItem::NewInstance ( ) const

◆ PrintSelf()

void vtkEqualizerContextItem::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.

◆ InstantiateHandleRepresentation()

void vtkEqualizerContextItem::InstantiateHandleRepresentation ( )
inline

A stub method that is called from ParaView.

Additional logic can be implemented here. Example of usage (3dwidgets_remotingviews.xml):

<Proxy class="vtkEqualizerContextItem"
name="EqualizerContextItem"
post_creation="InstantiateHandleRepresentation">

Definition at line 63 of file vtkEqualizerContextItem.h.

◆ Paint()

bool vtkEqualizerContextItem::Paint ( vtkContext2D painter)
overridevirtual

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

Reimplemented from vtkAbstractContextItem.

◆ Hit()

bool vtkEqualizerContextItem::Hit ( const vtkContextMouseEvent mouse)
overridevirtual

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

Reimplemented from vtkAbstractContextItem.

◆ MouseEnterEvent()

bool vtkEqualizerContextItem::MouseEnterEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse enter event.

Return true if the item holds the event, false if the event can be propagated to other items.

Reimplemented from vtkAbstractContextItem.

◆ MouseMoveEvent()

bool vtkEqualizerContextItem::MouseMoveEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse move event.

Return true if the item holds the event, false if the event can be propagated to other items.

Reimplemented from vtkAbstractContextItem.

◆ MouseLeaveEvent()

bool vtkEqualizerContextItem::MouseLeaveEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse leave event.

Return true if the item holds the event, false if the event can be propagated to other items.

Reimplemented from vtkAbstractContextItem.

◆ MouseButtonPressEvent()

bool vtkEqualizerContextItem::MouseButtonPressEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button down event Return true if the item holds the event, false if the event can be propagated to other items.

Reimplemented from vtkAbstractContextItem.

◆ MouseButtonReleaseEvent()

bool vtkEqualizerContextItem::MouseButtonReleaseEvent ( const vtkContextMouseEvent mouse)
overridevirtual

Mouse button release event.

Return true if the item holds the event, false if the event can be propagated to other items.

Reimplemented from vtkAbstractContextItem.

◆ SetScene()

void vtkEqualizerContextItem::SetScene ( vtkContextScene scene)
overridevirtual

Set the vtkContextScene for the item, always set for an item in a scene.

After setting the scene calls the Modified() method.

Reimplemented from vtkAbstractContextItem.

◆ SetPoints()

void vtkEqualizerContextItem::SetPoints ( const std::string &  points)

Set / Get anchor points in the following format "P1x,P1y;P2x,P2y; ... PNx,PNy;" where X denotes the frequency, typeid(x) = int and Y denotes the gain, typeid(y) = float "0,1;500,1;" by default.

◆ GetPoints()

std::string vtkEqualizerContextItem::GetPoints ( ) const

Member Data Documentation

◆ MouseState

MouseStates vtkEqualizerContextItem::MouseState = NO_BUTTON
protected

Definition at line 139 of file vtkEqualizerContextItem.h.

◆ Pen

vtkNew<vtkPen> vtkEqualizerContextItem::Pen
protected

Definition at line 140 of file vtkEqualizerContextItem.h.

◆ Brush

vtkNew<vtkBrush> vtkEqualizerContextItem::Brush
protected

Definition at line 141 of file vtkEqualizerContextItem.h.


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