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QtBaseViewerKeyHandling.cc
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40 \*===========================================================================*/
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42 /*===========================================================================*\
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44 * $Revision$ *
45 * $Author$ *
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48 \*===========================================================================*/
49
50
51
52 //=============================================================================
53 //
54 // CLASS QtBaseViewer - IMPLEMENTATION
55 //
56 //=============================================================================
57
58
59 //== INCLUDES =================================================================
60
61 #include "QtBaseViewer.hh"
62 #include <QInputDialog>
63
64 //== NAMESPACES ===============================================================
65
66 namespace ACG {
67 namespace QtWidgets {
68
69
70 //== IMPLEMENTATION ==========================================================
71
72 void QtBaseViewer::disableKeyHandling(bool _state ) {
73 disableKeyHandling_ = _state;
74 };
75
76 //-----------------------------------------------------------------------------
77
78 bool QtBaseViewer::keyHandlingState() {
79 return disableKeyHandling_;
80 };
81
82 //-----------------------------------------------------------------------------
83
84 void QtBaseViewer::glKeyReleaseEvent(QKeyEvent* _event) {
85 _event->ignore();
86 };
87
88 //-----------------------------------------------------------------------------
89
90 void QtBaseViewer::glKeyPressEvent(QKeyEvent* _event)
91 {
92 // Pass key event to parent widget without any handling
93 if ( disableKeyHandling_ ) {
94 _event->ignore();
95 return;
96 }
97
98 bool handled(false);
99
100
101 // CTRL + ALT events
102 if ((_event->modifiers() & Qt::ControlModifier) &&
103 (_event->modifiers() & Qt::AltModifier))
104 {
105
106 switch (_event->key())
107 {
108 // Stereo steeing: eye distance
109 case Qt::Key_E:
110 {
111 bool save(glareaGrabbed_);
112 bool ok(false);
113
114 // release grabbing to process input dialog
115 if(save) releaseGLArea();
116
117 double val = QInputDialog::getDouble( this, "Eye Dist", "Eye Dist:",
118 eyeDist_,
119 0.0, 100.0, 10,
120 &ok);
121 // restore old setting
122 if(save) grabGLArea();
123
124 if (ok) {
125 eyeDist_ = val;
126 handled = true;
127 updateGL();
128 }
129
130 break;
131 }
132
133
134 // Stereo setting: focal length
135 case Qt::Key_F:
136 {
137 bool save(glareaGrabbed_);
138 bool ok(false);
139
140 // release grabbing to process input dialog
141 if(save) releaseGLArea();
142
143 double val = QInputDialog::getDouble( this, "Focal Dist", "Focal Dist:",
144 focalDist_,
145 0.0, 100.0, 10,
146 &ok);
147 //restore old setting
148 if(save) grabGLArea();
149
150 if (ok) {
151 focalDist_ = val;
152 handled = true;
153 updateGL();
154 }
155 break;
156 }
157 }
158 } else { // Normal events
159
160 switch (_event->key())
161 {
162 // Lock / unlock update
163 case Qt::Key_ScrollLock:
164 {
165 if (!updateLocked_) {
166 lockUpdate();
167 handled = true;
168 std::cerr << "Display update locked\n";
169
170 } else {
171 unlockAndUpdate();
172 handled = true;
173 std::cerr << "Display update un-locked\n";
174 }
175 break;
176 }
177
178 case Qt::Key_Escape:
179 {
180 actionMode(lastActionMode_);
181 handled = true;
182 break;
183 }
184 }
185 }
186
187 // If the event has not been handled by the baseviewer, check for Key events from subclasses
188 if(!handled) {
189 handled = viewKeyPressEvent(_event);
190 }
191
192
193 // give event to application
194 if (!handled) {
195 _event->ignore();
196 emit(signalKeyPressEvent(_event));
197 }
198
199 }
200
201
202
203
204 //=============================================================================
205 } // namespace QtWidgets
206 } // namespace ACG
207 //=============================================================================
ACG::QtWidgets::QtBaseViewer::focalDist_
double focalDist_
Set eye distance for stereo.
Definition: QtBaseViewer.hh:960
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::QtWidgets::QtBaseViewer::glKeyPressEvent
virtual void glKeyPressEvent(QKeyEvent *)
Get keyPress events from the glArea.
Definition: QtBaseViewerKeyHandling.cc:90
ACG::QtWidgets::QtBaseViewer::unlockAndUpdate
virtual void unlockAndUpdate()
Definition: QtBaseViewer.cc:440
ACG::QtWidgets::QtBaseViewer::disableKeyHandling
void disableKeyHandling(bool _state)
Enable or disable internal Key handling.
Definition: QtBaseViewerKeyHandling.cc:72
ACG::QtWidgets::QtBaseViewer::glKeyReleaseEvent
virtual void glKeyReleaseEvent(QKeyEvent *_event)
Get keyRelease events from the glArea.
Definition: QtBaseViewerKeyHandling.cc:84
ACG::QtWidgets::QtBaseViewer::signalKeyPressEvent
void signalKeyPressEvent(QKeyEvent *)
Key Event received.
ACG::QtWidgets::QtBaseViewer::eyeDist_
double eyeDist_
Set eye distance for stereo.
Definition: QtBaseViewer.hh:960
ACG::QtWidgets::QtBaseViewer::disableKeyHandling_
bool disableKeyHandling_
Enable or disable internal Key handling.
Definition: QtBaseViewer.hh:1019
ACG::QtWidgets::QtBaseViewer::lockUpdate
virtual void lockUpdate()
Definition: QtBaseViewer.cc:426
ACG::QtWidgets::QtBaseViewer::keyHandlingState
bool keyHandlingState()
get the current key handling state.
Definition: QtBaseViewerKeyHandling.cc:78
ACG::QtWidgets::QtBaseViewer::viewKeyPressEvent
virtual bool viewKeyPressEvent(QKeyEvent *_event)=0
Handle key events in view mode.
ACG::QtWidgets::QtBaseViewer::updateGL
virtual void updateGL()
Redraw scene. Triggers paint event for updating the view (cf. drawNow()).
Definition: QtBaseViewer.cc:808
ACG::QtWidgets::QtBaseViewer::actionMode
ActionMode actionMode() const
get action mode
Definition: QtBaseViewer.hh:387