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1 | // Created on: 2011-10-20 |
2 | // Created by: Roman KOZLOV |
3 | // Copyright (c) 2011-2014 OPEN CASCADE SAS |
4 | // |
5 | // This file is part of Open CASCADE Technology software library. |
6 | // |
7 | // This library is free software; you can redistribute it and/or modify it under |
8 | // the terms of the GNU Lesser General Public License version 2.1 as published |
9 | // by the Free Software Foundation, with special exception defined in the file |
10 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
11 | // distribution for complete text of the license and disclaimer of any warranty. |
12 | // |
13 | // Alternatively, this file may be used under the terms of Open CASCADE |
14 | // commercial license or contractual agreement. |
15 | |
16 | #include <IVtkOCC_ViewerSelector.hxx> |
17 | #include <Select3D_SensitiveBox.hxx> |
18 | #include <TColgp_Array1OfPnt2d.hxx> |
19 | #include <gp_Quaternion.hxx> |
20 | #include <Graphic3d_Camera.hxx> |
21 | |
22 | IMPLEMENT_STANDARD_HANDLE( IVtkOCC_ViewerSelector, SelectMgr_ViewerSelector ) |
23 | IMPLEMENT_STANDARD_RTTIEXT( IVtkOCC_ViewerSelector, SelectMgr_ViewerSelector ) |
24 | |
25 | //============================================================================ |
26 | // Method: Constructor |
27 | // Purpose: |
28 | //============================================================================ |
29 | IVtkOCC_ViewerSelector::IVtkOCC_ViewerSelector() |
30 | : SelectMgr_ViewerSelector(), |
31 | myPixTol(2), |
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32 | myToUpdateTol(Standard_True) {} |
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33 | |
34 | //============================================================================ |
35 | // Method: Pick |
36 | // Purpose: Implements point picking |
37 | //============================================================================ |
38 | void IVtkOCC_ViewerSelector::Pick (const Standard_Integer theXPix, |
39 | const Standard_Integer theYPix, |
40 | const IVtk_IView::Handle& theView) |
41 | { |
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42 | if (myToUpdateTol) |
43 | { |
44 | // Compute and set a sensitivity tolerance according to the renderer (viewport). |
45 | // TODO: Think if this works well in perspective view...'cause result depends |
46 | // on position on the screen, but we always use the point close to the |
47 | // screen's origin... |
48 | mySelectingVolumeMgr.SetPixelTolerance (myPixTol); |
49 | |
50 | myToUpdateTol = Standard_False; |
51 | } |
52 | |
53 | Standard_Integer aWidth = 0, aHeight = 0; |
54 | Graphic3d_Mat4d aProj, anOrient; |
55 | Standard_Boolean isOrthographic = Standard_False; |
56 | Standard_Real aX = RealLast(), aY = RealLast(); |
57 | Standard_Real aVpWidth = RealLast(), aVpHeight = RealLast(); |
58 | |
59 | mySelectingVolumeMgr.SetActiveSelectionType (SelectMgr_SelectingVolumeManager::Point); |
60 | theView->GetCamera (aProj, anOrient, isOrthographic); |
61 | mySelectingVolumeMgr.SetCamera (aProj, anOrient, isOrthographic); |
62 | |
63 | theView->GetWindowSize (aWidth, aHeight); |
64 | mySelectingVolumeMgr.SetWindowSize (aWidth, aHeight); |
65 | |
66 | theView->GetViewport (aX, aY, aVpWidth, aVpHeight); |
67 | mySelectingVolumeMgr.SetViewport (aX, aY, aVpWidth, aVpHeight); |
68 | |
69 | gp_Pnt2d aMousePos (static_cast<Standard_Real> (theXPix), |
70 | static_cast<Standard_Real> (theYPix)); |
71 | mySelectingVolumeMgr.BuildSelectingVolume (aMousePos); |
72 | |
73 | TraverseSensitives(); |
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74 | } |
75 | |
76 | //============================================================================ |
77 | // Method: Pick |
78 | // Purpose: Picking by rectangle |
79 | //============================================================================ |
80 | void IVtkOCC_ViewerSelector::Pick (const Standard_Integer theXMin, |
81 | const Standard_Integer theYMin, |
82 | const Standard_Integer theXMax, |
83 | const Standard_Integer theYMax, |
84 | const IVtk_IView::Handle& theView) |
85 | { |
86 | if (myToUpdateTol) |
87 | { |
88 | // Compute and set a sensitivity tolerance according to the renderer (viewport). |
89 | // TODO: Think if this works well in perspective view...'cause result depends |
90 | // on position on the screen, but we always use the point close to the |
91 | // screen's origin... |
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92 | mySelectingVolumeMgr.SetPixelTolerance (myPixTol); |
93 | |
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94 | myToUpdateTol = Standard_False; |
95 | } |
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96 | |
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97 | Standard_Integer aWidth = 0, aHeight = 0; |
98 | Graphic3d_Mat4d aProj, anOrient; |
99 | Standard_Boolean isOrthographic = Standard_False; |
100 | Standard_Real aX = RealLast(), aY = RealLast(); |
101 | Standard_Real aVpWidth = RealLast(), aVpHeight = RealLast(); |
102 | |
103 | mySelectingVolumeMgr.SetActiveSelectionType (SelectMgr_SelectingVolumeManager::Box); |
104 | theView->GetCamera (aProj, anOrient, isOrthographic); |
105 | mySelectingVolumeMgr.SetCamera (aProj, anOrient, isOrthographic); |
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106 | |
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107 | theView->GetWindowSize (aWidth, aHeight); |
108 | mySelectingVolumeMgr.SetWindowSize (aWidth, aHeight); |
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109 | |
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110 | theView->GetViewport (aX, aY, aVpWidth, aVpHeight); |
111 | mySelectingVolumeMgr.SetViewport (aX, aY, aVpWidth, aVpHeight); |
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112 | |
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113 | gp_Pnt2d aMinMousePos (static_cast<Standard_Real> (theXMin), |
114 | static_cast<Standard_Real> (theYMin)); |
115 | gp_Pnt2d aMaxMousePos (static_cast<Standard_Real> (theXMax), |
116 | static_cast<Standard_Real> (theYMax)); |
117 | |
118 | mySelectingVolumeMgr.BuildSelectingVolume (aMinMousePos, |
119 | aMaxMousePos); |
120 | |
121 | TraverseSensitives(); |
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122 | } |
123 | |
124 | //============================================================================ |
125 | // Method: Pick |
126 | // Purpose: |
127 | //============================================================================ |
128 | void IVtkOCC_ViewerSelector::Pick (double** thePoly, |
129 | const int theNbPoints, |
130 | const IVtk_IView::Handle& theView) |
131 | { |
132 | TColgp_Array1OfPnt2d aPolyline (1, theNbPoints); |
133 | |
134 | if (myToUpdateTol) |
135 | { |
136 | // Compute and set a sensitivity tolerance according to the renderer (viewport). |
137 | // TODO: Think if this works well in perspective view...'cause result depends |
138 | // on position on the screen, but we always use the point close to the |
139 | // screen's origin... |
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140 | mySelectingVolumeMgr.SetPixelTolerance (myPixTol); |
141 | |
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142 | myToUpdateTol = Standard_False; |
143 | } |
144 | |
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145 | // Build TColgp_Array1OfPnt2d from input array of doubles |
146 | gp_XYZ aWorldPnt; |
147 | |
148 | for (Standard_Integer anIt = 0; anIt < theNbPoints; anIt++) |
149 | { |
150 | gp_XY aDispPnt = thePoly[anIt][2] != 0 ? gp_XY (thePoly[anIt][0] / thePoly[anIt][2], thePoly[anIt][1] / thePoly[anIt][2]) |
151 | : gp_XY (thePoly[anIt][0], thePoly[anIt][1]); |
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152 | aPolyline.SetValue (anIt + 1, aDispPnt); |
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153 | } |
154 | |
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155 | Standard_Integer aWidth = 0, aHeight = 0; |
156 | Graphic3d_Mat4d aProj, anOrient; |
157 | Standard_Boolean isOrthographic = Standard_False; |
158 | Standard_Real aX = RealLast(), aY = RealLast(); |
159 | Standard_Real aVpWidth = RealLast(), aVpHeight = RealLast(); |
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160 | |
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161 | mySelectingVolumeMgr.SetActiveSelectionType (SelectMgr_SelectingVolumeManager::Polyline); |
162 | theView->GetCamera (aProj, anOrient, isOrthographic); |
163 | mySelectingVolumeMgr.SetCamera (aProj, anOrient, isOrthographic); |
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164 | |
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165 | theView->GetWindowSize (aWidth, aHeight); |
166 | mySelectingVolumeMgr.SetWindowSize (aWidth, aHeight); |
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167 | |
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168 | theView->GetViewport (aX, aY, aVpWidth, aVpHeight); |
169 | mySelectingVolumeMgr.SetViewport (aX, aY, aVpWidth, aVpHeight); |
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170 | |
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171 | mySelectingVolumeMgr.BuildSelectingVolume (aPolyline); |
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172 | |
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173 | TraverseSensitives(); |
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174 | } |
175 | |
176 | //============================================================================ |
177 | // Method: Activate |
178 | // Purpose: Activates the given selection |
179 | //============================================================================ |
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180 | void IVtkOCC_ViewerSelector::Activate (const Handle(SelectMgr_Selection)& theSelection) |
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181 | { |
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182 | for (theSelection->Init(); theSelection->More(); theSelection->Next()) |
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183 | { |
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184 | theSelection->Sensitive()->SetActiveForSelection(); |
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185 | } |
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186 | |
187 | theSelection->SetSelectionState (SelectMgr_SOS_Activated); |
188 | |
189 | myTolerances.Add (theSelection->Sensitivity()); |
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190 | mytolerance = myTolerances.Tolerance(); |
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191 | myToUpdateTolerance = Standard_True; |
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192 | } |
193 | |
194 | //============================================================================ |
195 | // Method: Deactivate |
196 | // Purpose: Deactivate the given selection |
197 | //============================================================================ |
198 | void IVtkOCC_ViewerSelector::Deactivate (const Handle(SelectMgr_Selection)& theSelection) |
199 | { |
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200 | for (theSelection->Init(); theSelection->More(); theSelection->Next()) |
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201 | { |
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202 | theSelection->Sensitive()->ResetSelectionActiveStatus(); |
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203 | } |
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204 | |
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205 | theSelection->SetSelectionState (SelectMgr_SOS_Deactivated); |
206 | |
207 | myTolerances.Decrement (theSelection->Sensitivity()); |
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208 | mytolerance = myTolerances.Tolerance(); |
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209 | myToUpdateTolerance = Standard_True; |
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210 | } |