* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "ruler.h"
+#include <extdef.h>
-#include "view.h"
-#include "pv/util.h"
+#include <QApplication>
+#include <QFontMetrics>
+#include <QMouseEvent>
-#include <extdef.h>
+#include "ruler.hpp"
+#include "view.hpp"
+
+#include <pv/util.hpp>
using namespace Qt;
+using std::shared_ptr;
+using std::vector;
+
namespace pv {
namespace view {
-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)
{
setMouseTracking(true);
- connect(&_view, SIGNAL(hover_point_changed()),
+ connect(&view_, SIGNAL(hover_point_changed()),
this, SLOT(hover_point_changed()));
}
QSize Ruler::sizeHint() const
{
- return QSize(0, RulerHeight);
+ const int text_height = calculate_text_height();
+ return QSize(0, RulerHeight * text_height);
+}
+
+QSize Ruler::extended_size_hint() const
+{
+ 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);
+}
+
+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());
+}
+
+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;
}
void Ruler::paintEvent(QPaintEvent*)
QPainter p(this);
p.setRenderHint(QPainter::Antialiasing);
- std::pair<double, unsigned int> spacing =
- calculate_tick_spacing(p, _view.scale(), _view.offset());
-
- double tick_period = spacing.first;
- unsigned int prefix = spacing.second;
-
- const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, "8").height();
+ const double tick_period = view_.tick_period();
// 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;
+ const pv::util::Timestamp first_major_division =
+ floor(view_.offset() / tick_period);
+ const pv::util::Timestamp first_minor_division =
+ ceil(view_.offset() / minor_tick_period);
+ const pv::util::Timestamp t0 = first_major_division * tick_period;
- int division = (int)round(first_minor_division -
- first_major_division * MinorTickSubdivision) - 1;
+ int division = (round(first_minor_division -
+ first_major_division * MinorTickSubdivision)).convert_to<int>() - 1;
+ 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 tick_y2 = height();
- const int minor_tick_y1 = (major_tick_y1 + tick_y2) / 2;
+ const int minor_tick_y1 = (major_tick_y1 + ruler_height) / 2;
double x;
do {
- const double t = t0 + division * minor_tick_period;
- x = (t - _view.offset()) / _view.scale();
+ const pv::util::Timestamp t = t0 + division * minor_tick_period;
+ x = ((t - view_.offset()) / view_.scale()).convert_to<double>();
if (division % MinorTickSubdivision == 0)
{
// Draw a major tick
p.drawText(x, ValueMargin, 0, text_height,
AlignCenter | AlignTop | TextDontClip,
- pv::util::format_time(t, prefix));
+ util::format_time(t, view_.tick_prefix(), view_.time_unit(),
+ view_.tick_precision()));
p.drawLine(QPointF(x, major_tick_y1),
- QPointF(x, tick_y2));
+ QPointF(x, ruler_height));
}
else
{
// Draw a minor tick
p.drawLine(QPointF(x, minor_tick_y1),
- QPointF(x, tick_y2));
+ QPointF(x, ruler_height));
}
division++;
-
} while (x < width());
// Draw the hover mark
- draw_hover_mark(p);
+ draw_hover_mark(p, text_height);
+
+ // 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::draw_hover_mark(QPainter &p)
+void Ruler::mouseDoubleClickEvent(QMouseEvent *e)
{
- const int x = _view.hover_point().x();
+ view_.add_flag(view_.offset() + ((double)e->x() + 0.5) * view_.scale());
+}
+
+void Ruler::draw_hover_mark(QPainter &p, int text_height)
+{
+ const int x = view_.hover_point().x();
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));
}
-void Ruler::hover_point_changed()
+int Ruler::calculate_text_height() const
{
- update();
+ return QFontMetrics(font()).ascent();
}
-std::pair<double, unsigned int> Ruler::calculate_tick_spacing(
- QPainter& p, double scale, double offset)
+void Ruler::hover_point_changed()
{
- const double SpacingIncrement = 32.0f;
- const double MinValueSpacing = 32.0f;
-
- double min_width = SpacingIncrement, typical_width;
-
- double tick_period;
- unsigned int prefix;
-
- do {
- const double min_period = 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));
-
- prefix = (order - pv::util::FirstSIPrefixPower) / 3;
-
- typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, pv::util::format_time(offset,
- prefix)).width() + MinValueSpacing;
-
- min_width += SpacingIncrement;
-
- } while(typical_width > tick_period / scale);
-
- return std::make_pair(tick_period, prefix);
+ update();
}
} // namespace view
projects / pulseview.git / blobdiff