#include <math.h>
#include <limits.h>
+#include <QApplication>
#include <QMouseEvent>
#include <QPainter>
#include <QTextStream>
+#include <pv/widgets/popup.h>
+
+using namespace boost;
using namespace std;
namespace pv {
const int Ruler::HoverArrowSize = 5;
Ruler::Ruler(View &parent) :
- QWidget(&parent),
- _view(parent),
- _grabbed_marker(NULL)
+ MarginWidget(parent),
+ _dragging(false)
{
setMouseTracking(true);
this, SLOT(hover_point_changed()));
}
+void Ruler::clear_selection()
+{
+ CursorPair &cursors = _view.cursors();
+ cursors.first()->select(false);
+ cursors.second()->select(false);
+ update();
+}
+
+QString Ruler::format_time(double t, unsigned int prefix,
+ unsigned int precision)
+{
+ const double multiplier = pow(10.0,
+ - prefix * 3 - FirstSIPrefixPower);
+
+ QString s;
+ QTextStream ts(&s);
+ ts.setRealNumberPrecision(precision);
+ ts << fixed << forcesign << (t * multiplier) <<
+ SIPrefixes[prefix] << "s";
+ return s;
+}
+
void Ruler::paintEvent(QPaintEvent*)
{
using namespace Qt;
const double SpacingIncrement = 32.0f;
const double MinValueSpacing = 32.0f;
+ const int ValueMargin = 3;
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
double min_width = SpacingIncrement, typical_width;
double tick_period;
unsigned int prefix;
- double multiplier;
// Find tick spacing, and number formatting that does not cause
// value to collide.
prefix = (order - FirstSIPrefixPower) / 3;
assert(prefix < countof(SIPrefixes));
- multiplier = pow(10.0, - prefix * 3 - FirstSIPrefixPower);
typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
AlignLeft | AlignTop, format_time(_view.offset(),
- multiplier, prefix)).width() + MinValueSpacing;
+ prefix)).width() + MinValueSpacing;
min_width += SpacingIncrement;
const double t0 = first_major_division * tick_period;
int division = (int)round(first_minor_division -
- first_major_division * MinorTickSubdivision);
- while (1)
- {
- const double t = t0 + division * minor_tick_period;
- const double x = (t - _view.offset()) / _view.scale();
+ first_major_division * MinorTickSubdivision) - 1;
- if (x >= width())
- break;
+ const int major_tick_y1 = text_height + ValueMargin * 2;
+ const int tick_y2 = height();
+ const int minor_tick_y1 = (major_tick_y1 + tick_y2) / 2;
+
+ double x;
+
+ do {
+ const double t = t0 + division * minor_tick_period;
+ x = (t - _view.offset()) / _view.scale();
if (division % MinorTickSubdivision == 0)
{
// Draw a major tick
- p.drawText(x, 0, 0, text_height, AlignCenter |
- AlignTop | TextDontClip,
- format_time(t, multiplier, prefix));
- p.drawLine(QPointF(x, text_height),
- QPointF(x, height()));
+ p.drawText(x, ValueMargin, 0, text_height,
+ AlignCenter | AlignTop | TextDontClip,
+ format_time(t, prefix));
+ p.drawLine(QPointF(x, major_tick_y1),
+ QPointF(x, tick_y2));
}
else
{
// Draw a minor tick
- p.drawLine(QPointF(x, (text_height + height()) / 2),
- QPointF(x, height()));
+ p.drawLine(QPointF(x, minor_tick_y1),
+ QPointF(x, tick_y2));
}
division++;
- }
+
+ } while (x < width());
// Draw the cursors
- draw_cursors(p);
+ if (_view.cursors_shown())
+ _view.cursors().draw_markers(p, rect(), prefix);
// Draw the hover mark
draw_hover_mark(p);
void Ruler::mouseMoveEvent(QMouseEvent *e)
{
- if (!_grabbed_marker)
+ if (!(e->buttons() & Qt::LeftButton))
return;
+
+ if ((e->pos() - _mouse_down_point).manhattanLength() <
+ QApplication::startDragDistance())
+ return;
+
+ _dragging = true;
- _grabbed_marker->set_time(_view.offset() +
- ((double)e->x() + 0.5) * _view.scale());
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
+ m->set_time(_view.offset() +
+ ((double)e->x() + 0.5) * _view.scale());
}
void Ruler::mousePressEvent(QMouseEvent *e)
{
- if (e->buttons() & Qt::LeftButton) {
- _grabbed_marker = NULL;
+ if (e->buttons() & Qt::LeftButton)
+ {
+ _mouse_down_point = e->pos();
+
+ _grabbed_marker.reset();
+
+ clear_selection();
if (_view.cursors_shown()) {
- std::pair<Cursor, Cursor> &cursors =
- _view.cursors();
- if (cursors.first.get_label_rect(
+ CursorPair &cursors = _view.cursors();
+ if (cursors.first()->get_label_rect(
rect()).contains(e->pos()))
- _grabbed_marker = &cursors.first;
- else if (cursors.second.get_label_rect(
+ _grabbed_marker = cursors.first();
+ else if (cursors.second()->get_label_rect(
rect()).contains(e->pos()))
- _grabbed_marker = &cursors.second;
+ _grabbed_marker = cursors.second();
}
- }
-}
-void Ruler::mouseReleaseEvent(QMouseEvent *)
-{
- _grabbed_marker = NULL;
-}
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
+ m->select();
-QString Ruler::format_time(double t, double multiplier,
- unsigned int prefix)
-{
- QString s;
- QTextStream ts(&s);
- ts.setRealNumberPrecision(0);
- ts << fixed << forcesign << (t * multiplier) <<
- SIPrefixes[prefix] << "s";
- return s;
+ selection_changed();
+ }
}
-void Ruler::draw_cursors(QPainter &p)
+void Ruler::mouseReleaseEvent(QMouseEvent *)
{
- if (!_view.cursors_shown())
- return;
+ using pv::widgets::Popup;
+
+ if (!_dragging)
+ if (shared_ptr<TimeMarker> m = _grabbed_marker.lock()) {
+ Popup *const p = m->create_popup(&_view);
+ p->set_position(mapToGlobal(QPoint(m->get_x(),
+ height())), Popup::Bottom);
+ p->show();
+ }
- const QRect r = rect();
- pair<Cursor, Cursor> &cursors = _view.cursors();
- cursors.first.paint_label(p, r);
- cursors.second.paint_label(p, r);
+ _dragging = false;
+ _grabbed_marker.reset();
}
void Ruler::draw_hover_mark(QPainter &p)
{
const int x = _view.hover_point().x();
- if (x == -1 || _grabbed_marker)
+ if (x == -1 || _dragging)
return;
p.setPen(QPen(Qt::NoPen));
- p.setBrush(QBrush(QColor(Qt::black)));
+ p.setBrush(QBrush(palette().color(foregroundRole())));
const int b = height() - 1;
const QPointF points[] = {
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