/usr/include/vtk-7.1/vtkObserverMediator.h is in libvtk7-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkObserverMediator.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.
=========================================================================*/
/**
* @class vtkObserverMediator
* @brief manage contention for cursors and other resources
*
* The vtkObserverMediator is a helper class that manages requests for
* cursor changes from multiple interactor observers (e.g. widgets). It keeps
* a list of widgets (and their priorities) and their current requests for
* cursor shape. It then satisfies requests based on widget priority and the
* relative importance of the request (e.g., a lower priority widget
* requesting a particular cursor shape will overrule a higher priority
* widget requesting a default shape).
*
* @sa
* vtkAbstractWidget vtkWidgetRepresentation
*/
#ifndef vtkObserverMediator_h
#define vtkObserverMediator_h
#include "vtkRenderingCoreModule.h" // For export macro
#include "vtkObject.h"
class vtkRenderWindowInteractor;
class vtkInteractorObserver;
class vtkObserverMap;
class VTKRENDERINGCORE_EXPORT vtkObserverMediator : public vtkObject
{
public:
/**
* Instantiate the class.
*/
static vtkObserverMediator *New();
//@{
/**
* Standard macros.
*/
vtkTypeMacro(vtkObserverMediator,vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
//@}
//@{
/**
* Specify the instance of vtkRenderWindow whose cursor shape is
* to be managed.
*/
void SetInteractor(vtkRenderWindowInteractor* iren);
vtkGetObjectMacro(Interactor, vtkRenderWindowInteractor);
//@}
/**
* Method used to request a cursor shape. Note that the shape is specified
* using one of the integral values determined in vtkRenderWindow.h. The
* method returns a non-zero value if the shape was successfully changed.
*/
int RequestCursorShape(vtkInteractorObserver*, int cursorShape);
/**
* Remove all requests for cursor shape from a given interactor.
*/
void RemoveAllCursorShapeRequests(vtkInteractorObserver*);
protected:
vtkObserverMediator();
~vtkObserverMediator();
// The render window whose cursor we are controlling
vtkRenderWindowInteractor *Interactor;
// A map whose key is the observer*, and whose data value is a cursor
// request. Note that a special compare function is used to sort the
// widgets based on the observer's priority.
vtkObserverMap *ObserverMap; //given a widget*, return its data
// The current observer and cursor shape
vtkInteractorObserver *CurrentObserver;
int CurrentCursorShape;
private:
vtkObserverMediator(const vtkObserverMediator&) VTK_DELETE_FUNCTION;
void operator=(const vtkObserverMediator&) VTK_DELETE_FUNCTION;
};
#endif
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