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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCocoaRenderWindowInteractor.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkCocoaRenderWindowInteractor - implements Cocoa specific functions
// required by vtkRenderWindowInteractor.
//
// .SECTION Description
// The interactor interfaces with vtkCocoaRenderWindow and vtkCocoaGLView
// to trap messages from the Cocoa window manager and send them to vtk.
// Since OS X applications typically use the Command key where UNIX and
// Windows applications would use the Ctrl key, this interactor maps the
// Command key to Ctrl. In versions of VTK prior to VTK 6.2, it was
// mapped to Alt. On OS X, the Option key can be used as Alt.
// IMPORTANT: This header must be in C++ only because it is included by .cxx
// files. That means no Objective C may be used. That's why some instance
// variables are void* instead of what they really should be.
#ifndef vtkCocoaRenderWindowInteractor_h
#define vtkCocoaRenderWindowInteractor_h
#include "vtkRenderingOpenGLModule.h" // For export macro
#include "vtkRenderWindowInteractor.h"
#include "vtkTDxConfigure.h" // defines VTK_USE_TDX
#ifdef VTK_USE_TDX
class vtkTDxMacDevice;
#endif
class VTKRENDERINGOPENGL_EXPORT vtkCocoaRenderWindowInteractor : public vtkRenderWindowInteractor
{
public:
// Description:
// Construct object so that light follows camera motion.
static vtkCocoaRenderWindowInteractor *New();
vtkTypeMacro(vtkCocoaRenderWindowInteractor,vtkRenderWindowInteractor);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Initialize the even handler
virtual void Initialize();
// Description:
// Enable/Disable interactions. By default interactors are enabled when
// initialized. Initialize() must be called prior to enabling/disabling
// interaction. These methods are used when a window/widget is being
// shared by multiple renderers and interactors. This allows a "modal"
// display where one interactor is active when its data is to be displayed
// and all other interactors associated with the widget are disabled
// when their data is not displayed.
virtual void Enable();
virtual void Disable();
// Description:
// Cocoa specific application terminate, calls ClassExitMethod then
// calls PostQuitMessage(0) to terminate app. An application can Specify
// ExitMethod for alternative behaviour (i.e. suppresion of keyboard exit)
void TerminateApp();
// Description:
// Methods to set the default exit method for the class. This method is
// only used if no instance level ExitMethod has been defined. It is
// provided as a means to control how an interactor is exited given
// the various language bindings (tcl, Cocoa, etc.).
static void SetClassExitMethod(void (*f)(void *), void *arg);
static void SetClassExitMethodArgDelete(void (*f)(void *));
// Description:
// These methods correspond to the the Exit, User and Pick
// callbacks. They allow for the Style to invoke them.
virtual void ExitCallback();
// int GetButtonDown();
// void SetButtonDown(int button);
protected:
vtkCocoaRenderWindowInteractor();
~vtkCocoaRenderWindowInteractor();
// Description:
// Accessors for the Cocoa member variables. These should be used at all time, even
// by this class.
void SetTimerDictionary(void *dictionary); // Really an NSMutableDictionary*
void *GetTimerDictionary();
// Description:
// Class variables so an exit method can be defined for this class
// (used to set different exit methods for various language bindings,
// i.e. tcl, java, Cocoa)
static void (*ClassExitMethod)(void *);
static void (*ClassExitMethodArgDelete)(void *);
static void *ClassExitMethodArg;
// Description:
// Cocoa-specific internal timer methods. See the superclass for detailed
// documentation.
virtual int InternalCreateTimer(int timerId, int timerType, unsigned long duration);
virtual int InternalDestroyTimer(int platformTimerId);
// Description:
// This will start up the event loop and never return. If you
// call this method it will loop processing events until the
// application is exited.
virtual void StartEventLoop();
// Description:
// Accessors for the cocoa manager (Really an NSMutableDictionary*).
// It manages all Cocoa objects in this C++ class.
void SetCocoaManager(void *manager);
void *GetCocoaManager();
#ifdef VTK_USE_TDX
vtkTDxMacDevice *Device;
#endif
private:
vtkCocoaRenderWindowInteractor(const vtkCocoaRenderWindowInteractor&); // Not implemented.
void operator=(const vtkCocoaRenderWindowInteractor&); // Not implemented.
// Important: this class cannot contain Objective-C instance
// variables for 2 reasons:
// 1) C++ files include this header
// 2) because of garbage collection
// Instead, use the CocoaManager dictionary to keep a collection
// of what would otherwise be Objective-C instance variables.
void *CocoaManager; // Really an NSMutableDictionary*
};
#endif
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