* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "ruler.hpp"
+#include <extdef.h>
+#include <QApplication>
+#include <QFontMetrics>
+#include <QMouseEvent>
+
+#include "ruler.hpp"
#include "view.hpp"
-#include "pv/util.hpp"
-#include <extdef.h>
+#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)
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();
+ const unsigned int prefix = view_.tick_prefix();
// Draw the tick marks
p.setPen(palette().color(foregroundRole()));
int division = (int)round(first_minor_division -
first_major_division * MinorTickSubdivision) - 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;
AlignCenter | AlignTop | TextDontClip,
pv::util::format_time(t, prefix));
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 = !dragging_ &&
+ i->label_rect(r).contains(mouse_point_);
+ i->paint_label(p, r, highlight);
+ }
}
-void Ruler::draw_hover_mark(QPainter &p)
+void Ruler::mouseMoveEvent(QMouseEvent *e)
{
- const int x = view_.hover_point().x();
+ mouse_point_ = e->pos();
- if (x == -1)
+ if (!(e->buttons() & Qt::LeftButton))
return;
- p.setPen(QPen(Qt::NoPen));
- p.setBrush(QBrush(palette().color(foregroundRole())));
+ if ((e->pos() - mouse_down_point_).manhattanLength() <
+ QApplication::startDragDistance())
+ return;
- const int b = height() - 1;
- const QPointF points[] = {
- QPointF(x, b),
- QPointF(x - HoverArrowSize, b - HoverArrowSize),
- QPointF(x + HoverArrowSize, b - HoverArrowSize)
- };
- p.drawPolygon(points, countof(points));
+ // Do the drag
+ dragging_ = true;
+
+ const QPoint delta = e->pos() - mouse_down_point_;
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ if (i->dragging())
+ i->drag_by(delta);
}
-void Ruler::hover_point_changed()
+void Ruler::mousePressEvent(QMouseEvent *e)
{
- update();
+ if (e->buttons() & Qt::LeftButton) {
+ mouse_down_point_ = e->pos();
+ mouse_down_item_ = get_mouse_over_item(e->pos());
+
+ clear_selection();
+
+ if (mouse_down_item_) {
+ mouse_down_item_->select();
+ mouse_down_item_->drag();
+ }
+
+ selection_changed();
+ }
}
-std::pair<double, unsigned int> Ruler::calculate_tick_spacing(
- QPainter& p, double scale, double offset)
+void Ruler::mouseReleaseEvent(QMouseEvent *)
{
- const double SpacingIncrement = 32.0f;
- const double MinValueSpacing = 32.0f;
+ using pv::widgets::Popup;
- double min_width = SpacingIncrement, typical_width;
+ if (!dragging_ && mouse_down_item_)
+ show_popup(mouse_down_item_);
- double tick_period;
- unsigned int prefix;
+ dragging_ = false;
+ mouse_down_item_.reset();
- do {
- const double min_period = scale * min_width;
+ const vector< shared_ptr<TimeItem> > items(view_.time_items());
+ for (auto &i : items)
+ i->drag_release();
+}
- const int order = (int)floorf(log10f(min_period));
- const double order_decimal = pow(10.0, order);
+void Ruler::mouseDoubleClickEvent(QMouseEvent *e)
+{
+ view_.add_flag(view_.offset() + ((double)e->x() + 0.5) * view_.scale());
+}
- unsigned int unit = 0;
+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();
+ }
+}
- do {
- tick_period = order_decimal * ScaleUnits[unit++];
- } while (tick_period < min_period && unit < countof(ScaleUnits));
+void Ruler::draw_hover_mark(QPainter &p, int text_height)
+{
+ const int x = view_.hover_point().x();
- prefix = (order - pv::util::FirstSIPrefixPower) / 3;
+ if (x == -1)
+ return;
- typical_width = p.boundingRect(0, 0, INT_MAX, INT_MAX,
- AlignLeft | AlignTop, pv::util::format_time(offset,
- prefix)).width() + MinValueSpacing;
+ p.setPen(QPen(Qt::NoPen));
+ p.setBrush(QBrush(palette().color(foregroundRole())));
- min_width += SpacingIncrement;
+ 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));
+}
- } while(typical_width > tick_period / scale);
+int Ruler::calculate_text_height() const
+{
+ return QFontMetrics(font()).ascent();
+}
- return std::make_pair(tick_period, prefix);
+void Ruler::hover_point_changed()
+{
+ update();
}
} // namespace view
projects / pulseview.git / blobdiff