* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "ruler.h"
-
-#include "cursor.h"
-#include "view.h"
-#include "viewport.h"
-#include "pv/util.h"
-
#include <extdef.h>
#include <QApplication>
+#include <QFontMetrics>
#include <QMouseEvent>
-#include <QPainter>
-#include <QTextStream>
-#include <pv/widgets/popup.h>
+#include "ruler.hpp"
+#include "view.hpp"
using namespace Qt;
+
using std::shared_ptr;
+using std::vector;
namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
-const int Ruler::RulerHeight = 30;
+const float Ruler::RulerHeight = 2.5f; // x Text Height
const int Ruler::MinorTickSubdivision = 4;
-const int Ruler::ScaleUnits[3] = {1, 2, 5};
-const int Ruler::HoverArrowSize = 5;
+const float Ruler::HoverArrowSize = 0.5f; // x Text Height
Ruler::Ruler(View &parent) :
- MarginWidget(parent),
- _dragging(false)
+ MarginWidget(parent)
{
setMouseTracking(true);
- connect(&_view, SIGNAL(hover_point_changed()),
+ connect(&view_, SIGNAL(hover_point_changed()),
this, SLOT(hover_point_changed()));
+ connect(&view_, SIGNAL(offset_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
+ connect(&view_, SIGNAL(scale_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
+ connect(&view_, SIGNAL(tick_prefix_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
+ connect(&view_, SIGNAL(tick_precision_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
+ connect(&view_, SIGNAL(tick_period_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
+ connect(&view_, SIGNAL(time_unit_changed()),
+ this, SLOT(invalidate_tick_position_cache()));
}
-void Ruler::clear_selection()
+QSize Ruler::sizeHint() const
{
- CursorPair &cursors = _view.cursors();
- cursors.first()->select(false);
- cursors.second()->select(false);
- update();
+ const int text_height = calculate_text_height();
+ return QSize(0, RulerHeight * text_height);
}
-
-QSize Ruler::sizeHint() const
+QSize Ruler::extended_size_hint() const
{
- return QSize(0, RulerHeight);
+ QRectF max_rect;
+ std::vector< std::shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ max_rect = max_rect.united(i->label_rect(QRect()));
+ return QSize(0, sizeHint().height() - max_rect.top() / 2 +
+ ViewItem::HighlightRadius);
}
-void Ruler::paintEvent(QPaintEvent*)
+QString Ruler::format_time_with_distance(
+ const pv::util::Timestamp& distance,
+ const pv::util::Timestamp& t,
+ pv::util::SIPrefix prefix,
+ pv::util::TimeUnit unit,
+ unsigned precision,
+ bool sign)
{
+ const unsigned limit = 60;
+
+ if (t.is_zero())
+ return "0";
+
+ // If we have to use samples then we have no alternative formats
+ if (unit == pv::util::TimeUnit::Samples)
+ return pv::util::format_time_si_adjusted(t, prefix, precision, "sa", sign);
+
+ // View zoomed way out -> low precision (0), big distance (>=60s)
+ // -> DD:HH:MM
+ if ((precision == 0) && (distance >= limit))
+ return pv::util::format_time_minutes(t, 0, sign);
+
+ // View in "normal" range -> medium precision, medium step size
+ // -> HH:MM:SS.mmm... or xxxx (si unit) if less than limit seconds
+ // View zoomed way in -> high precision (>3), low step size (<1s)
+ // -> HH:MM:SS.mmm... or xxxx (si unit) if less than limit seconds
+ if (abs(t) < limit)
+ return pv::util::format_time_si_adjusted(t, prefix, precision, "s", sign);
+ else
+ return pv::util::format_time_minutes(t, precision, sign);
+}
- 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;
-
- // Find tick spacing, and number formatting that does not cause
- // value to collide.
- do
- {
- const double min_period = _view.scale() * min_width;
-
- const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10.0, order);
-
- unsigned int unit = 0;
-
- do
- {
- tick_period = order_decimal * ScaleUnits[unit++];
- } while (tick_period < min_period && unit < countof(ScaleUnits));
+vector< shared_ptr<ViewItem> > Ruler::items()
+{
+ const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
+ return vector< shared_ptr<ViewItem> >(
+ time_items.begin(), time_items.end());
+}
- prefix = (order - pv::util::FirstSIPrefixPower) / 3;
+shared_ptr<ViewItem> Ruler::get_mouse_over_item(const QPoint &pt)
+{
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto i = items.rbegin(); i != items.rend(); i++)
+ if ((*i)->enabled() && (*i)->label_rect(rect()).contains(pt))
+ return *i;
+ return nullptr;
+}
- typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, pv::util::format_time(_view.offset(),
- prefix)).width() + MinValueSpacing;
+void Ruler::paintEvent(QPaintEvent*)
+{
+ if (!tick_position_cache_) {
+ auto ffunc = [this](const pv::util::Timestamp& t) {
+ return format_time_with_distance(
+ this->view_.tick_period(),
+ t,
+ this->view_.tick_prefix(),
+ this->view_.time_unit(),
+ this->view_.tick_precision());
+ };
+
+ tick_position_cache_ = calculate_tick_positions(
+ view_.tick_period(),
+ view_.offset(),
+ view_.scale(),
+ width(),
+ ffunc);
+ }
- min_width += SpacingIncrement;
+ const int ValueMargin = 3;
- } while(typical_width > tick_period / _view.scale());
+ const int text_height = calculate_text_height();
+ const int ruler_height = RulerHeight * text_height;
+ const int major_tick_y1 = text_height + ValueMargin * 2;
+ const int minor_tick_y1 = (major_tick_y1 + ruler_height) / 2;
- const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, "8").height();
+ QPainter p(this);
// Draw the tick marks
p.setPen(palette().color(foregroundRole()));
- const double minor_tick_period = tick_period / MinorTickSubdivision;
- const double first_major_division =
- floor(_view.offset() / tick_period);
- const double first_minor_division =
- ceil(_view.offset() / minor_tick_period);
- const double t0 = first_major_division * tick_period;
-
- int division = (int)round(first_minor_division -
- first_major_division * MinorTickSubdivision) - 1;
-
- 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, ValueMargin, 0, text_height,
- AlignCenter | AlignTop | TextDontClip,
- pv::util::format_time(t, prefix));
- p.drawLine(QPointF(x, major_tick_y1),
- QPointF(x, tick_y2));
- }
- else
- {
- // Draw a minor tick
- p.drawLine(QPointF(x, minor_tick_y1),
- QPointF(x, tick_y2));
- }
-
- division++;
-
- } while (x < width());
+ for (const auto& tick: tick_position_cache_->major) {
+ p.drawText(tick.first, ValueMargin, 0, text_height,
+ AlignCenter | AlignTop | TextDontClip, tick.second);
+ p.drawLine(QPointF(tick.first, major_tick_y1),
+ QPointF(tick.first, ruler_height));
+ }
- // Draw the cursors
- if (_view.cursors_shown())
- _view.cursors().draw_markers(p, rect(), prefix);
+ for (const auto& tick: tick_position_cache_->minor) {
+ p.drawLine(QPointF(tick, minor_tick_y1),
+ QPointF(tick, ruler_height));
+ }
// Draw the hover mark
- draw_hover_mark(p);
+ draw_hover_mark(p, text_height);
+
+ p.setRenderHint(QPainter::Antialiasing);
- p.end();
+ // The cursor labels are not drawn with the arrows exactly on the
+ // bottom line of the widget, because then the selection shadow
+ // would be clipped away.
+ const QRect r = rect().adjusted(0, 0, 0, -ViewItem::HighlightRadius);
+
+ // Draw the items
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items) {
+ const bool highlight = !item_dragging_ &&
+ i->label_rect(r).contains(mouse_point_);
+ i->paint_label(p, r, highlight);
+ }
}
-void Ruler::mouseMoveEvent(QMouseEvent *e)
+Ruler::TickPositions Ruler::calculate_tick_positions(
+ const pv::util::Timestamp& major_period,
+ const pv::util::Timestamp& offset,
+ const double scale,
+ const int width,
+ std::function<QString(const pv::util::Timestamp&)> format_function)
{
- if (!(e->buttons() & Qt::LeftButton))
- return;
-
- if ((e->pos() - _mouse_down_point).manhattanLength() <
- QApplication::startDragDistance())
- return;
+ TickPositions tp;
- _dragging = true;
+ const pv::util::Timestamp minor_period = major_period / MinorTickSubdivision;
+ const pv::util::Timestamp first_major_division = floor(offset / major_period);
+ const pv::util::Timestamp first_minor_division = ceil(offset / minor_period);
+ const pv::util::Timestamp t0 = first_major_division * major_period;
- if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
- m->set_time(_view.offset() +
- ((double)e->x() + 0.5) * _view.scale());
-}
+ int division = (round(first_minor_division -
+ first_major_division * MinorTickSubdivision)).convert_to<int>() - 1;
-void Ruler::mousePressEvent(QMouseEvent *e)
-{
- if (e->buttons() & Qt::LeftButton)
- {
- _mouse_down_point = e->pos();
-
- _grabbed_marker.reset();
-
- clear_selection();
-
- if (_view.cursors_shown()) {
- 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(
- rect()).contains(e->pos()))
- _grabbed_marker = cursors.second();
+ double x;
+
+ do {
+ pv::util::Timestamp t = t0 + division * minor_period;
+ x = ((t - offset) / scale).convert_to<double>();
+
+ if (division % MinorTickSubdivision == 0) {
+ // Recalculate 't' without using 'minor_period' which is a fraction
+ t = t0 + division / MinorTickSubdivision * major_period;
+ tp.major.emplace_back(x, format_function(t));
+ } else {
+ tp.minor.emplace_back(x);
}
- if (shared_ptr<TimeMarker> m = _grabbed_marker.lock())
- m->select();
+ division++;
+ } while (x < width);
- selection_changed();
- }
+ return tp;
}
-void Ruler::mouseReleaseEvent(QMouseEvent *)
+void Ruler::mouseDoubleClickEvent(QMouseEvent *event)
{
- 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();
- }
-
- _dragging = false;
- _grabbed_marker.reset();
+ view_.add_flag(view_.offset() + ((double)event->x() + 0.5) * view_.scale());
}
-void Ruler::draw_hover_mark(QPainter &p)
+void Ruler::draw_hover_mark(QPainter &p, int text_height)
{
- const int x = _view.hover_point().x();
+ const int x = view_.hover_point().x();
- if (x == -1 || _dragging)
+ if (x == -1)
return;
p.setPen(QPen(Qt::NoPen));
p.setBrush(QBrush(palette().color(foregroundRole())));
- const int b = height() - 1;
+ const int b = RulerHeight * text_height;
+ const float hover_arrow_size = HoverArrowSize * text_height;
const QPointF points[] = {
QPointF(x, b),
- QPointF(x - HoverArrowSize, b - HoverArrowSize),
- QPointF(x + HoverArrowSize, b - HoverArrowSize)
+ QPointF(x - hover_arrow_size, b - hover_arrow_size),
+ QPointF(x + hover_arrow_size, b - hover_arrow_size)
};
p.drawPolygon(points, countof(points));
}
+int Ruler::calculate_text_height() const
+{
+ return QFontMetrics(font()).ascent();
+}
+
void Ruler::hover_point_changed()
{
update();
}
-} // namespace view
+void Ruler::invalidate_tick_position_cache()
+{
+ tick_position_cache_ = boost::none;
+}
+
+void Ruler::resizeEvent(QResizeEvent*)
+{
+ // the tick calculation depends on the width of this widget
+ invalidate_tick_position_cache();
+}
+
+} // namespace TraceView
+} // namespace views
} // namespace pv
projects / pulseview.git / blobdiff