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
|
/*=========================================================================
Program: ParaView
Module: vtkSMViewProxyInteractorHelper.h
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 vtkSMViewProxyInteractorHelper - helper class that make it easier to
// hook vtkRenderWindowInteractor and vtkSMViewProxy.
// .SECTION Description
// vtkSMViewProxyInteractorHelper is a helper class designed to make it easier
// to hook up vtkRenderWindowInteractor to call methods on a vtkSMViewProxy (or
// subclass). It's primarily designed to work with vtkSMRenderViewProxy (and
// subclasses), but it should work with other types of views too.
//
// To use this helper, the view typically creates a instance for itself as register
// itself (using vtkSMViewProxyInteractorHelper::SetViewProxy) and then calls
// vtkSMViewProxyInteractorHelper::SetupInteractor(). This method will initialize
// the interactor (potentially changing some ivars on the interactor to avoid
// automatic rendering, using vtkRenderWindowInteractor::EnableRenderOff(), etc.)
// and setup event observer to monitor interaction.
//
// vtkSMViewProxyInteractorHelper only using vtkSMViewProxy::StillRender() and
// vtkSMViewProxy::InteractiveRender() APIs directly. However several properties can
// be optionally present on the view proxy to dictate this class' behaviour. These
// are as follows:
//
// \li \c NonInteractiveRenderDelay :- when present provides time in seconds to
// delay the StillRender() call after user interaction has ended i.e.
// vtkRenderWindowInteractor fires the vtkCommand::EndInteractionEvent. If
// missing, or less than 0.01, the view will immediately render.
//
// \li \c EnableRenderOnInteraction :- when present provides a flag whether the interactor
// should trigger the render calls (either StillRender or InteractiveRender) as
// a consequence of interaction. If missing, we treat EnableRender as ON.
#ifndef vtkSMViewProxyInteractorHelper_h
#define vtkSMViewProxyInteractorHelper_h
#include "vtkPVServerManagerRenderingModule.h" //needed for exports
#include "vtkWeakPointer.h" //needed for vtkWeakPointer
#include "vtkObject.h"
class vtkCommand;
class vtkRenderWindowInteractor;
class vtkSMViewProxy;
class VTKPVSERVERMANAGERRENDERING_EXPORT vtkSMViewProxyInteractorHelper : public vtkObject
{
public:
static vtkSMViewProxyInteractorHelper* New();
vtkTypeMacro(vtkSMViewProxyInteractorHelper, vtkObject);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// Set the view proxy.
// This is a weak reference i.e. the view proxy's
// reference count will be unchanged by this call.
void SetViewProxy(vtkSMViewProxy* proxy);
vtkSMViewProxy* GetViewProxy();
// Description:
// Set the interactor to "help" the view with.
// This is a weak reference i.e. the interactor's
// reference count will be unchanged by this call.
void SetupInteractor(vtkRenderWindowInteractor* iren);
vtkRenderWindowInteractor* GetInteractor();
void CleanupInteractor() { this->SetupInteractor(NULL); }
protected:
vtkSMViewProxyInteractorHelper();
~vtkSMViewProxyInteractorHelper();
// Description:
// Handle event.
void Execute(vtkObject* caller, unsigned long event, void* calldata);
void Render();
void CleanupTimer();
vtkCommand* Observer;
vtkWeakPointer<vtkSMViewProxy> ViewProxy;
vtkWeakPointer<vtkRenderWindowInteractor> Interactor;
int DelayedRenderTimerId;
bool Interacting;
bool Interacted;
private:
vtkSMViewProxyInteractorHelper(const vtkSMViewProxyInteractorHelper&); // Not implemented
void operator=(const vtkSMViewProxyInteractorHelper&); // Not implemented
};
#endif
|
