qui/seqbrowser/SequenceBrowser.cpp

   1 #include <QApplication>
   2 #include <QClipboard>
   3 #include <QDir>
   4 #include <QFileDialog>
   5 #include <QMessageBox>
   6 #include <QMouseEvent>
   7 #include <QRubberBand>
   8 #include <QRect>
   9 #include <QString>
  10 #include <iostream>
  11 #include <set>
  12
  13 #include <math.h>
  14
  15 #include "qui/seqbrowser/SequenceBrowser.hpp"
  16 #include "mussa_exceptions.hpp"
  17
  18 using namespace std;
  19
  20 SequenceBrowser::SequenceBrowser(QWidget *parent)
  21   : QGLWidget(parent),
  22     rubberBand(0),
  23     popupMenu(new QMenu(this)),
  24     copySelectedSequenceAsFastaAction(new QAction(tr("&Copy as Fasta"), this))
  25 {
  26   connect(copySelectedSequenceAsFastaAction, SIGNAL(triggered()),
  27           this, SLOT(copySelectedSequenceAsFasta()));
  28   copySelectedSequenceAsFastaAction->setShortcut(Qt::CTRL | Qt::Key_C);
  29   popupMenu->addAction(copySelectedSequenceAsFastaAction);
  30 }
  31
  32 QMenu *SequenceBrowser::getPopupMenu()
  33 {
  34   return popupMenu;
  35 }
  36
  37 QAction *SequenceBrowser::getCopySelectedSequenceAsFastaAction()
  38 {
  39   return copySelectedSequenceAsFastaAction;
  40 }
  41
  42
  43 QSize SequenceBrowser::sizeHint() const
  44 {
  45   //return QSize((int)GlSeqBrowser::viewportHeight(), (int)GlSeqBrowser::viewportWidth());
  46   return QSize(600, 400);
  47 }
  48
  49 void SequenceBrowser::setViewportCenter(float x)
  50 {
  51   const float epsilon = 1e-10;
  52   float center = GlSeqBrowser::viewportCenter();
  53   float difference = fabsf(x - center);
  54   float abs_x = fabsf(x);
  55   center = fabsf(center);
  56
  57   // the difference < epsilon * val is one of the recommended tests
  58   // for float equality.
  59   // of course since we're looking for not equals, we need to toss a
  60   // not at the beginning
  61   if (not (difference < epsilon * abs_x or difference < epsilon * center))
  62   {
  63     GlSeqBrowser::setViewportCenter(x);
  64     emit viewportChanged();
  65     update();
  66   }
  67 }
  68
  69 void SequenceBrowser::setZoom(double new_zoom)
  70 {
  71   if (new_zoom != GlSeqBrowser::zoom()) {
  72     GlSeqBrowser::setZoom(new_zoom);
  73     emit viewportChanged();
  74     update();
  75   }
  76 }
  77
  78 void SequenceBrowser::setClipPlane(int )
  79 {
  80 /*
  81   if (clipZ != (double) newZ){
  82     clipZ = (double) newZ;
  83     update();
  84   }
  85 */
  86 }
  87
  88 void SequenceBrowser::copySelectedSequenceAsFasta()
  89 {
  90   // get fasta data
  91   std::string buffer;
  92   copySelectedTracksAsFasta(buffer);
  93
  94   // get reference to clipboard
  95   QClipboard *clipboard = QApplication::clipboard();
  96   clipboard->setText(buffer.c_str());
  97 }
  98
  99
 100 void SequenceBrowser::clear()
 101 {
 102   GlSeqBrowser::clear();
 103   emit tracksChanged();
 104 }
 105
 106 void SequenceBrowser::displayContextMenu(const QPoint& point)
 107 {
 108   popupMenu->popup(point);
 109 }
 110
 111 void SequenceBrowser::push_sequence(boost::shared_ptr<Sequence> s)
 112 {
 113   GlSeqBrowser::push_sequence(s);
 114   emit tracksChanged();
 115 }
 116
 117 void SequenceBrowser::push_sequence(boost::shared_ptr<GlSequence> gs)
 118 {
 119   GlSeqBrowser::push_sequence(gs);
 120   emit tracksChanged();
 121 }
 122
 123 ////////////////////
 124 // Rendering code
 125 void SequenceBrowser::initializeGL()
 126 {
 127   GlSeqBrowser::initializeGL();
 128 }
 129
 130 void SequenceBrowser::resizeGL(int width, int height)
 131 {
 132   GlSeqBrowser::resizeGL(width, height);
 133   emit viewportChanged();
 134 }
 135
 136 void SequenceBrowser::paintGL()
 137 {
 138   GlSeqBrowser::paintGL();
 139 }
 140
 141 void SequenceBrowser::mousePressEvent( QMouseEvent *e)
 142 {
 143   switch(e->button()) {
 144     case Qt::LeftButton:
 145       startSelecting(e);
 146       break;
 147    case Qt::RightButton:
 148       break;
 149    default:
 150       break;
 151   }
 152 }
 153
 154 void SequenceBrowser::mouseMoveEvent( QMouseEvent *e )
 155 {
 156   if (rubberBand and rubberBand->isVisible()) {
 157     rubberBand->setGeometry(QRect(bandOrigin, e->pos()).normalized());
 158   }
 159 }
 160
 161 void SequenceBrowser::mouseReleaseEvent( QMouseEvent *e)
 162 {
 163   switch(e->button()) {
 164     case Qt::LeftButton:
 165       stopSelecting(e);
 166       break;
 167    case Qt::RightButton:
 168       // ok so selectedMode and drawing mode should probably be combinded
 169       // into a single state variable.
 170       if (rubberBand and
 171           not rubberBand->isVisible() and
 172           selectedCanvasRegion.contains(e->pos())) {
 173         displayContextMenu(e->globalPos());
 174       }
 175       break;
 176    default:
 177       break;
 178   }
 179
 180 }
 181
 182 void SequenceBrowser::startSelecting(QMouseEvent *e)
 183 {
 184   if (!rubberBand)
 185     rubberBand = new QRubberBand(QRubberBand::Rectangle, this);
 186
 187   if (not rubberBand->isVisible()) {
 188     bandOrigin = e->pos();
 189     rubberBand->setGeometry(QRect(bandOrigin, QSize()));
 190     rubberBand->show();
 191   }
 192 }
 193
 194 void SequenceBrowser::stopSelecting(QMouseEvent *e)
 195 {
 196   if (rubberBand and rubberBand->isVisible()) {
 197     rubberBand->hide();
 198     selectedMode = false;
 199     QRect r = QRect(bandOrigin, e->pos()).normalized();
 200     bandOrigin = r.topLeft();
 201
 202     selectRegion(r.top(), r.left(), r.bottom(), r.right());
 203     selectedCanvasRegion = r;
 204   }
 205 }