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   copySelectedTracksAsFasta(buffer);
 105
 106   // get reference to clipboard
 107   QClipboard *clipboard = QApplication::clipboard();
 108   clipboard->setText(buffer.c_str());
 109 }
 110
 111
 112 void SequenceBrowser::clear()
 113 {
 114   GlSeqBrowser::clear();
 115   emit tracksChanged();
 116 }
 117
 118 void SequenceBrowser::displayContextMenu(const QPoint& point)
 119 {
 120   popupMenu->popup(point);
 121 }
 122
 123 void SequenceBrowser::push_sequence(boost::shared_ptr<Sequence> s)
 124 {
 125   GlSeqBrowser::push_sequence(s);
 126   emit tracksChanged();
 127 }
 128
 129 void SequenceBrowser::push_sequence(boost::shared_ptr<GlSequence> gs)
 130 {
 131   GlSeqBrowser::push_sequence(gs);
 132   emit tracksChanged();
 133 }
 134
 135 ////////////////////
 136 // Rendering code
 137 void SequenceBrowser::initializeGL()
 138 {
 139   GlSeqBrowser::initializeGL();
 140 }
 141
 142 void SequenceBrowser::resizeGL(int width, int height)
 143 {
 144   GlSeqBrowser::resizeGL(width, height);
 145   emit viewportChanged();
 146 }
 147
 148 void SequenceBrowser::paintGL()
 149 {
 150   GlSeqBrowser::paintGL();
 151 }
 152
 153 void SequenceBrowser::mousePressEvent( QMouseEvent *e)
 154 {
 155   switch(e->button()) {
 156     case Qt::LeftButton:
 157       startSelecting(e);
 158       break;
 159    case Qt::RightButton:
 160       break;
 161    default:
 162       break;
 163   }
 164 }
 165
 166 void SequenceBrowser::mouseMoveEvent( QMouseEvent *e )
 167 {
 168   if (rubberBand and rubberBand->isVisible()) {
 169     rubberBand->setGeometry(QRect(bandOrigin, e->pos()).normalized());
 170   }
 171 }
 172
 173 void SequenceBrowser::mouseReleaseEvent( QMouseEvent *e)
 174 {
 175   switch(e->button()) {
 176     case Qt::LeftButton:
 177       stopSelecting(e);
 178       break;
 179    case Qt::RightButton:
 180       // ok so selectedMode and drawing mode should probably be combinded
 181       // into a single state variable.
 182       if (rubberBand and
 183           not rubberBand->isVisible() and
 184           selectedCanvasRegion.contains(e->pos())) {
 185         displayContextMenu(e->globalPos());
 186       }
 187       break;
 188    default:
 189       break;
 190   }
 191
 192 }
 193
 194 void SequenceBrowser::startSelecting(QMouseEvent *e)
 195 {
 196   if (!rubberBand)
 197     rubberBand = new QRubberBand(QRubberBand::Rectangle, this);
 198
 199   if (not rubberBand->isVisible()) {
 200     bandOrigin = e->pos();
 201     rubberBand->setGeometry(QRect(bandOrigin, QSize()));
 202     rubberBand->show();
 203   }
 204 }
 205
 206 void SequenceBrowser::stopSelecting(QMouseEvent *e)
 207 {
 208   if (rubberBand and rubberBand->isVisible()) {
 209     rubberBand->hide();
 210     selectedMode = false;
 211     QRect r = QRect(bandOrigin, e->pos()).normalized();
 212     bandOrigin = r.topLeft();
 213
 214     selectRegion(r.top(), r.left(), r.bottom(), r.right());
 215     selectedCanvasRegion = r;
 216   }
 217 }