#include "view.h"
#include "viewport.h"
-#include "../../sigsession.h"
-#include "../../signal.h"
+#include "signal.h"
+#include "../sigsession.h"
#include <QMouseEvent>
setMouseTracking(true);
setAutoFillBackground(true);
setBackgroundRole(QPalette::Base);
+
+ connect(&_view, SIGNAL(signals_moved()),
+ this, SLOT(on_signals_moved()));
}
int Viewport::get_total_height() const
{
- int height = 0;
- BOOST_FOREACH(const shared_ptr<Signal> s,
- _view.session().get_signals()) {
+ int h = 0;
+ const vector< shared_ptr<Signal> > sigs(
+ _view.session().get_signals());
+ BOOST_FOREACH(const shared_ptr<Signal> s, sigs) {
assert(s);
- height += View::SignalHeight;
+ h = max(s->get_v_offset() + View::SignalHeight, h);
}
- return height;
+ return h;
}
-void Viewport::paintEvent(QPaintEvent *event)
+void Viewport::paintEvent(QPaintEvent*)
{
- const vector< shared_ptr<Signal> > &sigs =
- _view.session().get_signals();
+ const vector< shared_ptr<Signal> > sigs(
+ _view.session().get_signals());
QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
+
+ draw_cursors_background(p);
// Plot the signal
- int offset = -_view.v_offset();
+ const int v_offset = _view.v_offset();
BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
{
assert(s);
-
- const QRect signal_rect(0, offset,
- width(), View::SignalHeight);
-
- s->paint(p, signal_rect, _view.scale(), _view.offset());
-
- offset += View::SignalHeight;
+ s->paint(p, s->get_v_offset() - v_offset, 0, width(),
+ _view.scale(), _view.offset());
}
+ draw_cursors_foreground(p);
+
p.end();
}
{
assert(event);
- if(event->buttons() & Qt::LeftButton)
+ if (event->buttons() & Qt::LeftButton)
{
_view.set_scale_offset(_view.scale(),
_mouse_down_offset +
}
}
-void Viewport::mouseReleaseEvent(QMouseEvent *event)
+void Viewport::wheelEvent(QWheelEvent *event)
{
assert(event);
+
+ if (event->orientation() == Qt::Vertical) {
+ // Vertical scrolling is interpreted as zooming in/out
+ _view.zoom(event->delta() / 120, event->x());
+ } else if (event->orientation() == Qt::Horizontal) {
+ // Horizontal scrolling is interpreted as moving left/right
+ _view.set_scale_offset(_view.scale(),
+ event->delta() * _view.scale()
+ + _view.offset());
+ }
}
-void Viewport::wheelEvent(QWheelEvent *event)
+void Viewport::draw_cursors_background(QPainter &p)
{
- assert(event);
- _view.zoom(event->delta() / 120, event->x());
+ if (!_view.cursors_shown())
+ return;
+
+ p.setPen(Qt::NoPen);
+ p.setBrush(QBrush(View::CursorAreaColour));
+
+ const pair<Cursor, Cursor> &c = _view.cursors();
+ const float x1 = (c.first.time() - _view.offset()) / _view.scale();
+ const float x2 = (c.second.time() - _view.offset()) / _view.scale();
+ const int l = (int)max(min(x1, x2), 0.0f);
+ const int r = (int)min(max(x1, x2), (float)width());
+
+ p.drawRect(l, 0, r - l, height());
+}
+
+void Viewport::draw_cursors_foreground(QPainter &p)
+{
+ if (!_view.cursors_shown())
+ return;
+
+ const QRect r = rect();
+ pair<Cursor, Cursor> &cursors = _view.cursors();
+ cursors.first.paint(p, r);
+ cursors.second.paint(p, r);
+}
+
+void Viewport::on_signals_moved()
+{
+ update();
}
} // namespace view