1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/ui.cc	Tue Apr 10 06:11:16 2012 +0300
     1.3 @@ -0,0 +1,129 @@
     1.4 +#include <stdio.h>
     1.5 +#include <stdlib.h>
     1.6 +#include <QtGui>
     1.7 +#include "ui.h"
     1.8 +
     1.9 +static GLView *glview;
    1.10 +static Volume *volume;
    1.11 +
    1.12 +MainWindow::MainWindow()
    1.13 +{
    1.14 +	setWindowTitle("Volume Renderer");
    1.15 +
    1.16 +	// OpenGL view
    1.17 +	glview = new GLView;
    1.18 +	setCentralWidget(glview);
    1.19 +
    1.20 +	// actions
    1.21 +	QAction *act_open = new QAction(qApp->style()->standardIcon(QStyle::SP_DialogOpenButton), "&Open...", this);
    1.22 +	act_open->setStatusTip("Open a volume dataset");
    1.23 +	QObject::connect(act_open, SIGNAL(triggered()), this, SLOT(open_volume()));
    1.24 +
    1.25 +	QAction *act_quit = new QAction("&Quit", this);
    1.26 +	act_quit->setStatusTip("Quit");
    1.27 +	QObject::connect(act_quit, SIGNAL(triggered()), this, SLOT(close()));
    1.28 +
    1.29 +	// menus
    1.30 +	QMenu *mfile = menuBar()->addMenu("&File");
    1.31 +	mfile->addAction(act_open);
    1.32 +	mfile->addAction(act_quit);
    1.33 +
    1.34 +	// toolbars
    1.35 +	QToolBar *tfile = addToolBar("&File");
    1.36 +	tfile->addAction(act_open);
    1.37 +
    1.38 +	statusBar();
    1.39 +	show();
    1.40 +}
    1.41 +
    1.42 +void MainWindow::open_volume()
    1.43 +{
    1.44 +	QString fname = QFileDialog::getOpenFileName(this, "Open volume dataset", QString(), "Volume descriptors (*.vol)");
    1.45 +	if(!fname.isNull()) {
    1.46 +		Volume *vol = new Volume;
    1.47 +
    1.48 +		if(vol->load(qPrintable(fname))) {
    1.49 +			delete volume;
    1.50 +			volume = vol;
    1.51 +			volray_setvolume(vol);
    1.52 +			post_redisplay();
    1.53 +		} else {
    1.54 +			delete vol;
    1.55 +		}
    1.56 +	}
    1.57 +}
    1.58 +
    1.59 +void post_redisplay()
    1.60 +{
    1.61 +	glview->updateGL();
    1.62 +}
    1.63 +
    1.64 +
    1.65 +GLView::GLView(QWidget *parent)
    1.66 +	: QGLWidget(QGLFormat(QGL::DoubleBuffer), parent)
    1.67 +{
    1.68 +}
    1.69 +
    1.70 +QSize GLView::minimumSizeHint() const
    1.71 +{
    1.72 +	return QSize(320, 200);
    1.73 +}
    1.74 +
    1.75 +QSize GLView::sizeHint() const
    1.76 +{
    1.77 +	return QSize(1280, 800);
    1.78 +}
    1.79 +
    1.80 +void GLView::initializeGL()
    1.81 +{
    1.82 +	if(!volray_init()) {
    1.83 +		exit(0);
    1.84 +	}
    1.85 +	glClearColor(1, 0, 0, 1);
    1.86 +}
    1.87 +
    1.88 +void GLView::resizeGL(int xsz, int ysz)
    1.89 +{
    1.90 +	volray_resize(xsz, ysz);
    1.91 +}
    1.92 +
    1.93 +void GLView::paintGL()
    1.94 +{
    1.95 +	volray_draw();
    1.96 +}
    1.97 +
    1.98 +static int button_number(Qt::MouseButton bn)
    1.99 +{
   1.100 +	switch(bn) {
   1.101 +	case Qt::LeftButton:
   1.102 +		return 0;
   1.103 +	case Qt::MidButton:
   1.104 +		return 1;
   1.105 +	case Qt::RightButton:
   1.106 +		return 2;
   1.107 +	default:
   1.108 +		break;
   1.109 +	}
   1.110 +	return -1;
   1.111 +}
   1.112 +
   1.113 +void GLView::mousePressEvent(QMouseEvent *ev)
   1.114 +{
   1.115 +	int bn = button_number(ev->button());
   1.116 +	if(bn >= 0) {
   1.117 +		volray_mouse(bn, 1, ev->x(), ev->y());
   1.118 +	}
   1.119 +}
   1.120 +
   1.121 +void GLView::mouseReleaseEvent(QMouseEvent *ev)
   1.122 +{
   1.123 +	int bn = button_number(ev->button());
   1.124 +	if(bn >= 0) {
   1.125 +		volray_mouse(bn, 0, ev->x(), ev->y());
   1.126 +	}
   1.127 +}
   1.128 +
   1.129 +void GLView::mouseMoveEvent(QMouseEvent *ev)
   1.130 +{
   1.131 +	volray_motion(ev->x(), ev->y());
   1.132 +}