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 SequenceBrowser::SequenceBrowser(const SequenceBrowser& sb, QWidget *parent)
  33   : QGLWidget(parent),
  34     GlSeqBrowser(sb),
  35     rubberBand(sb.rubberBand),
  36     popupMenu(sb.popupMenu),
  37     copySelectedSequenceAsFastaAction(sb.copySelectedSequenceAsFastaAction)
  38 {
  39   resize(sb.width(), sb.height());
  40   setZoom(sb.zoom());
  41   paintGL();
  42 }
  43
  44 QMenu *SequenceBrowser::getPopupMenu()
  45 {
  46   return popupMenu;
  47 }
  48
  49 QAction *SequenceBrowser::getCopySelectedSequenceAsFastaAction()
  50 {
  51   return copySelectedSequenceAsFastaAction;
  52 }
  53
  54
  55 QSize SequenceBrowser::sizeHint() const
  56 {
  57   //return QSize((int)GlSeqBrowser::viewportHeight(), (int)GlSeqBrowser::viewportWidth());
  58   return QSize(600, 400);
  59 }
  60
  61 void SequenceBrowser::setViewportCenter(float x)
  62 {
  63   const float epsilon = 1e-10;
  64   float center = GlSeqBrowser::viewportCenter();
  65   float difference = fabsf(x - center);
  66   float abs_x = fabsf(x);
  67   center = fabsf(center);
  68
  69   // the difference < epsilon * val is one of the recommended tests
  70   // for float equality.
  71   // of course since we're looking for not equals, we need to toss a
  72   // not at the beginning
  73   if (not (difference < epsilon * abs_x or difference < epsilon * center))
  74   {
  75     GlSeqBrowser::setViewportCenter(x);
  76     emit viewportChanged();
  77     update();
  78   }
  79 }
  80
  81 void SequenceBrowser::setZoom(double new_zoom)
  82 {
  83   if (new_zoom != GlSeqBrowser::zoom()) {
  84     GlSeqBrowser::setZoom(new_zoom);
  85     emit viewportChanged();
  86     update();
  87   }
  88 }
  89
  90 void SequenceBrowser::setClipPlane(int )
  91 {
  92 /*
  93   if (clipZ != (double) newZ){
  94     clipZ = (double) newZ;
  95     update();
  96   }
  97 */
  98 }
  99
 100 void SequenceBrowser::copySelectedSequenceAsFasta()
 101 {
 102   // get fasta data
 103   std::string buffer;
 104   size_t base_pairs_copied = copySelectedTracksAsFasta(buffer);
 105
 106   // get reference to clipboard
 107   QClipboard *clipboard = QApplication::clipboard();
 108   clipboard->setText(buffer.c_str());
 109   emit basepairsCopied(base_pairs_copied);
 110 }
 111
 112
 113 void SequenceBrowser::clear()
 114 {
 115   GlSeqBrowser::clear();
 116   emit tracksChanged();
 117 }
 118
 119 void SequenceBrowser::displayContextMenu(const QPoint& point)
 120 {
 121   popupMenu->popup(point);
 122 }
 123
 124 void SequenceBrowser::push_sequence(boost::shared_ptr<Sequence> s)
 125 {
 126   GlSeqBrowser::push_sequence(s);
 127   emit tracksChanged();
 128 }
 129
 130 void SequenceBrowser::push_sequence(boost::shared_ptr<GlSequence> gs)
 131 {
 132   GlSeqBrowser::push_sequence(gs);
 133   emit tracksChanged();
 134 }
 135
 136 ////////////////////
 137 // Rendering code
 138 void SequenceBrowser::initializeGL()
 139 {
 140   GlSeqBrowser::initializeGL();
 141 }
 142
 143 void SequenceBrowser::resizeGL(int width, int height)
 144 {
 145   GlSeqBrowser::resizeGL(width, height);
 146   emit viewportChanged();
 147 }
 148
 149 void SequenceBrowser::paintGL()
 150 {
 151   GlSeqBrowser::paintGL();
 152 }
 153
 154 void SequenceBrowser::mousePressEvent( QMouseEvent *e)
 155 {
 156   switch(e->button()) {
 157     case Qt::LeftButton:
 158       startSelecting(e);
 159       break;
 160    case Qt::RightButton:
 161       break;
 162    default:
 163       break;
 164   }
 165 }
 166
 167 void SequenceBrowser::mouseMoveEvent( QMouseEvent *e )
 168 {
 169   if (rubberBand and rubberBand->isVisible()) {
 170     rubberBand->setGeometry(QRect(bandOrigin, e->pos()).normalized());
 171   }
 172 }
 173
 174 void SequenceBrowser::mouseReleaseEvent( QMouseEvent *e)
 175 {
 176   switch(e->button()) {
 177     case Qt::LeftButton:
 178       stopSelecting(e);
 179       break;
 180    case Qt::RightButton:
 181       // ok so selectedMode and drawing mode should probably be combinded
 182       // into a single state variable.
 183       if (rubberBand and
 184           not rubberBand->isVisible() and
 185           selectedCanvasRegion.contains(e->pos())) {
 186         displayContextMenu(e->globalPos());
 187       }
 188       break;
 189    default:
 190       break;
 191   }
 192
 193 }
 194
 195 void SequenceBrowser::startSelecting(QMouseEvent *e)
 196 {
 197   if (!rubberBand)
 198     rubberBand = new QRubberBand(QRubberBand::Rectangle, this);
 199
 200   if (not rubberBand->isVisible()) {
 201     bandOrigin = e->pos();
 202     rubberBand->setGeometry(QRect(bandOrigin, QSize()));
 203     rubberBand->show();
 204   }
 205 }
 206
 207 void SequenceBrowser::stopSelecting(QMouseEvent *e)
 208 {
 209   if (rubberBand and rubberBand->isVisible()) {
 210     rubberBand->hide();
 211     selectedMode = false;
 212     QRect r = QRect(bandOrigin, e->pos()).normalized();
 213     bandOrigin = r.topLeft();
 214
 215     selectRegion(r.top(), r.left(), r.bottom(), r.right());
 216     selectedCanvasRegion = r;
 217   }
 218 }