#include "ruler.h"
-#include "cursor.h"
#include "view.h"
-#include "viewport.h"
+#include "pv/util.h"
#include <extdef.h>
-#include <assert.h>
-#include <math.h>
-#include <limits.h>
-
-#include <QMouseEvent>
-#include <QPainter>
-#include <QTextStream>
-
-using namespace std;
+using namespace Qt;
namespace pv {
namespace view {
+const int Ruler::RulerHeight = 30;
const int Ruler::MinorTickSubdivision = 4;
const int Ruler::ScaleUnits[3] = {1, 2, 5};
-const QString Ruler::SIPrefixes[9] =
- {"f", "p", "n", QChar(0x03BC), "m", "", "k", "M", "G"};
-const int Ruler::FirstSIPrefixPower = -15;
-
const int Ruler::HoverArrowSize = 5;
Ruler::Ruler(View &parent) :
- QWidget(&parent),
- _view(parent),
- _grabbed_marker(NULL)
+ MarginWidget(parent)
{
setMouseTracking(true);
this, SLOT(hover_point_changed()));
}
-QString Ruler::format_time(double t, unsigned int prefix,
- unsigned int precision)
+QSize Ruler::sizeHint() const
{
- 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;
+ return QSize(0, RulerHeight);
}
void Ruler::paintEvent(QPaintEvent*)
{
- using namespace Qt;
-
const double SpacingIncrement = 32.0f;
const double MinValueSpacing = 32.0f;
const int ValueMargin = 3;
const double min_period = _view.scale() * min_width;
const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10, order);
+ const double order_decimal = pow(10.0, order);
unsigned int unit = 0;
tick_period = order_decimal * ScaleUnits[unit++];
} while (tick_period < min_period && unit < countof(ScaleUnits));
- prefix = (order - FirstSIPrefixPower) / 3;
- assert(prefix < countof(SIPrefixes));
-
+ prefix = (order - pv::util::FirstSIPrefixPower) / 3;
typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, format_time(_view.offset(),
+ AlignLeft | AlignTop, pv::util::format_time(_view.offset(),
prefix)).width() + MinValueSpacing;
min_width += SpacingIncrement;
// Draw a major tick
p.drawText(x, ValueMargin, 0, text_height,
AlignCenter | AlignTop | TextDontClip,
- format_time(t, prefix));
+ pv::util::format_time(t, prefix));
p.drawLine(QPointF(x, major_tick_y1),
QPointF(x, tick_y2));
}
} while (x < width());
- // Draw the cursors
- draw_cursors(p, prefix);
-
// Draw the hover mark
draw_hover_mark(p);
-
- p.end();
-}
-
-void Ruler::mouseMoveEvent(QMouseEvent *e)
-{
- if (!_grabbed_marker)
- return;
-
- _grabbed_marker->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 (_view.cursors_shown()) {
- std::pair<Cursor, Cursor> &cursors =
- _view.cursors();
- if (cursors.first.get_label_rect(
- rect()).contains(e->pos()))
- _grabbed_marker = &cursors.first;
- else if (cursors.second.get_label_rect(
- rect()).contains(e->pos()))
- _grabbed_marker = &cursors.second;
- }
- }
-}
-
-void Ruler::mouseReleaseEvent(QMouseEvent *)
-{
- _grabbed_marker = NULL;
-}
-
-void Ruler::draw_cursors(QPainter &p, unsigned int prefix)
-{
- if (!_view.cursors_shown())
- return;
-
- const QRect r = rect();
- pair<Cursor, Cursor> &cursors = _view.cursors();
- cursors.first.paint_label(p, r, prefix);
- cursors.second.paint_label(p, r, prefix);
}
void Ruler::draw_hover_mark(QPainter &p)
{
const int x = _view.hover_point().x();
- if (x == -1 || _grabbed_marker)
+ if (x == -1)
return;
p.setPen(QPen(Qt::NoPen));