* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "ruler.h"
-#include "view.h"
-
#include <extdef.h>
-#include <assert.h>
-#include <math.h>
+#include <QApplication>
+#include <QFontMetrics>
+#include <QMouseEvent>
+
+#include "ruler.hpp"
+#include "view.hpp"
+
+#include <pv/util.hpp>
+#include <pv/widgets/popup.hpp>
-#include <QPainter>
-#include <QTextStream>
+using namespace Qt;
+
+using std::shared_ptr;
+using std::vector;
namespace pv {
namespace view {
+const float Ruler::RulerHeight = 2.5f; // x Text Height
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 float Ruler::HoverArrowSize = 0.5f; // x Text Height
Ruler::Ruler(View &parent) :
- QWidget(&parent),
- _view(parent)
+ MarginWidget(parent)
{
+ setMouseTracking(true);
+
+ connect(&view_, SIGNAL(hover_point_changed()),
+ this, SLOT(hover_point_changed()));
}
-void Ruler::paintEvent(QPaintEvent *event)
+void Ruler::clear_selection()
{
- QPainter p(this);
-
- const double MinSpacing = 80;
-
- const double min_period = _view.scale() * MinSpacing;
-
- const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10, order);
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ i->select(false);
+ update();
+}
- unsigned int unit = 0;
- double tick_period = 0.0f;
+QSize Ruler::sizeHint() const
+{
+ const int text_height = calculate_text_height();
+ return QSize(0, RulerHeight * text_height);
+}
- do
- {
- tick_period = order_decimal * ScaleUnits[unit++];
- } while(tick_period < min_period && unit < countof(ScaleUnits));
+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);
+}
- const unsigned int prefix = (order - FirstSIPrefixPower) / 3;
- assert(prefix >= 0);
- assert(prefix < countof(SIPrefixes));
+void Ruler::paintEvent(QPaintEvent*)
+{
+ const int ValueMargin = 3;
- const double multiplier = pow(0.1, prefix * 3 + FirstSIPrefixPower);
+ QPainter p(this);
+ p.setRenderHint(QPainter::Antialiasing);
- const int text_height = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- Qt::AlignLeft | Qt::AlignTop, "8").height();
+ const double tick_period = view_.tick_period();
+ const unsigned int prefix = view_.tick_prefix();
// Draw the tick marks
- p.setPen(Qt::black);
+ p.setPen(palette().color(foregroundRole()));
const double minor_tick_period = tick_period / MinorTickSubdivision;
const double first_major_division =
- floor(_view.offset() / tick_period);
+ floor(view_.offset() / tick_period);
const double first_minor_division =
- ceil(_view.offset() / minor_tick_period);
+ 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);
- 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 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;
- if(division % MinorTickSubdivision == 0)
+ 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
- QString s;
- QTextStream ts(&s);
- ts << (t * multiplier) << SIPrefixes[prefix] << "s";
- p.drawText(x, 0, 0, text_height, Qt::AlignCenter |
- Qt::AlignTop | Qt::TextDontClip, s);
- p.drawLine(x, text_height, x, height());
+ 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, ruler_height));
}
else
{
// Draw a minor tick
- p.drawLine(x, (text_height + height()) / 2,
- x, height());
+ p.drawLine(QPointF(x, minor_tick_y1),
+ QPointF(x, ruler_height));
}
division++;
+
+ } while (x < width());
+
+ // Draw the hover mark
+ 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 = !dragging_ &&
+ i->label_rect(r).contains(mouse_point_);
+ i->paint_label(p, r, highlight);
+ }
+}
+
+void Ruler::mouseMoveEvent(QMouseEvent *e)
+{
+ mouse_point_ = e->pos();
+
+ if (!(e->buttons() & Qt::LeftButton))
+ return;
+
+ if ((e->pos() - mouse_down_point_).manhattanLength() <
+ QApplication::startDragDistance())
+ return;
+
+ // Do the drag
+ dragging_ = true;
+
+ const int delta = e->pos().x() - mouse_down_point_.x();
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ if (i->dragging())
+ i->set_time(view_.offset() +
+ (i->drag_point().x() + delta - 0.5) *
+ view_.scale());
+}
+
+void Ruler::mousePressEvent(QMouseEvent *e)
+{
+ if (e->buttons() & Qt::LeftButton) {
+ mouse_down_point_ = e->pos();
+
+ mouse_down_item_.reset();
+
+ clear_selection();
+
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto i = items.rbegin(); i != items.rend(); i++)
+ if ((*i)->label_rect(rect()).contains(e->pos())) {
+ mouse_down_item_ = (*i);
+ break;
+ }
+
+ if (mouse_down_item_) {
+ mouse_down_item_->select();
+ mouse_down_item_->drag();
+ }
+
+ selection_changed();
}
+}
- p.end();
+void Ruler::mouseReleaseEvent(QMouseEvent *)
+{
+ using pv::widgets::Popup;
+
+ if (!dragging_ && mouse_down_item_) {
+ Popup *const p = mouse_down_item_->create_popup(&view_);
+ if (p) {
+ const QPoint arrpos(mouse_down_item_->get_x(),
+ height() - ViewItem::HighlightRadius);
+ p->set_position(mapToGlobal(arrpos), Popup::Bottom);
+ p->show();
+ }
+ }
+
+ dragging_ = false;
+ mouse_down_item_.reset();
+
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ i->drag_release();
+}
+
+void Ruler::leaveEvent(QEvent*)
+{
+ mouse_point_ = QPoint(-1, -1);
+ update();
+}
+
+void Ruler::mouseDoubleClickEvent(QMouseEvent *e)
+{
+ view_.add_flag(view_.offset() + ((double)e->x() + 0.5) * view_.scale());
+}
+
+void Ruler::keyPressEvent(QKeyEvent *e)
+{
+ assert(e);
+
+ if (e->key() == Qt::Key_Delete)
+ {
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ if (i->selected())
+ i->delete_pressed();
+ }
+}
+
+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 = RulerHeight * text_height;
+ const float hover_arrow_size = HoverArrowSize * text_height;
+ const QPointF points[] = {
+ QPointF(x, b),
+ 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
projects / pulseview.git / blobdiff