Developer Documentation
QtBaseViewerSnapshot.cc
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41 
42 
43 
44 
45 
46 //=============================================================================
47 //
48 // CLASS QtBaseViewer - IMPLEMENTATION
49 //
50 //=============================================================================
51 
52 
53 //== INCLUDES =================================================================
54 
55 #include "QtBaseViewer.hh"
56 #include "QtGLGraphicsScene.hh"
57 #include "QtGLGraphicsView.hh"
58 
59 #include <QApplication>
60 #include <QStatusBar>
61 #include <QFileInfo>
62 #include <QFileDialog>
63 
64 //== NAMESPACES ===============================================================
65 
66 namespace ACG {
67 namespace QtWidgets {
68 
69 
70 //== IMPLEMENTATION ==========================================================
71 
72 void QtBaseViewer::snapshotBaseFileName(const QString& _fname)
73 {
74  snapshotName_=_fname;
76 }
77 
78 
79 //-----------------------------------------------------------------------------
80 
81 
83 {
84  makeCurrent();
85 
86  glView_->raise();
87  qApp->processEvents();
88  makeCurrent();
89  paintGL();
90  glFinish();
91  copyToImage(*snapshot_, 0, 0, glWidth(), glHeight(), GL_BACK);
92 
93  QFileInfo fi(snapshotName_);
94 
95  QString fname = fi.path() + QDir::separator() +fi.baseName() + "." + QString::number(snapshotCounter_).rightJustified(7, '0') + ".";
96 
97  QString format="png";
98 
99  if (fi.completeSuffix() == "ppm")
100  format="ppmraw";
101 
102  fname += format;
103 
104  bool rval=snapshot_->save(fname,format.toUpper().toLatin1());
105 
106 
107  assert(statusbar_!=0);
108  if (rval)
109  {
110  statusbar_->showMessage(QString("snapshot: ")+fname,5000);
111  if ( action_["SnapshotSavesView"]->isChecked() )
112  {
113  QString view; encodeView(view);
114  QFile f(fname+".view"); f.open(QIODevice::WriteOnly|QIODevice::Truncate);
115  QTextStream sf(&f); sf << view; f.close();
116  }
117  }
118  else
119  {
120  statusbar_->showMessage(QString("could not save snapshot to ")+fname);
121  }
122 
124 }
125 
126 //-----------------------------------------------------------------------------
127 
128 
130 {
131  snapshot();
132 }
133 
134 
135 //-----------------------------------------------------------------------------
136 
137 
139 {
140  QString fname=snapshotName_;
141 
142  fname.replace('%', '$');
143  fname = QFileDialog::getSaveFileName ( 0, "Save snapshot name" );
144  if (!fname.isEmpty())
145  {
146  fname.replace('$', '%');
147 
148  snapshotBaseFileName(fname);
149  assert(statusbar_!=0);
150  QString msg="next snapshot: ";
151  statusbar_->showMessage(msg);
152  }
153 }
154 
155 
156 //-----------------------------------------------------------------------------
157 
158 
160 {
161 }
162 
163 //=============================================================================
164 } // namespace QtWidgets
165 } // namespace ACG
166 //=============================================================================
Namespace providing different geometric functions concerning angles.
unsigned int glWidth() const
get width of QGLWidget
void encodeView(QString &_view)
convert current view to text representation
virtual void snapshotBaseFileName(const QString &_fname)
void copyToImage(QImage &_image, GLenum _buffer=GL_BACK)
copy current framebuffer to an QImage
virtual void makeCurrent()
Makes this widget the current widget for OpenGL operations.
virtual void paintGL()
draw the scene. Triggered by updateGL().
unsigned int glHeight() const
get height of QGLWidget