]> sigrok.org Git - pulseview.git/blobdiff - pv/view/header.cpp
RowItemOwner: Replaced parent notification scheme
[pulseview.git] / pv / view / header.cpp
index 8434e2c8dc9ffb289c676f338d151793367e5a8e..ffdf79a6cce9f29e8bf6d105d65a399a6dd3e124 100644 (file)
 #include "signal.h"
 #include "../sigsession.h"
 
-#include <assert.h>
-
-#include <boost/foreach.hpp>
+#include <cassert>
+#include <algorithm>
 
 #include <QApplication>
-#include <QColorDialog>
-#include <QInputDialog>
 #include <QMenu>
 #include <QMouseEvent>
 #include <QPainter>
 #include <QRect>
 
-using namespace boost;
-using namespace std;
+#include <pv/widgets/popup.h>
+
+using std::max;
+using std::make_pair;
+using std::pair;
+using std::shared_ptr;
+using std::stable_sort;
+using std::vector;
 
 namespace pv {
 namespace view {
 
+const int Header::Padding = 12;
+const int Header::BaselineOffset = 5;
+
 Header::Header(View &parent) :
-       QWidget(&parent),
-       _view(parent),
-       _action_set_name(new QAction(tr("Set &Name..."), this)),
-       _action_set_colour(new QAction(tr("Set &Colour..."), this))
+       MarginWidget(parent),
+       _dragging(false)
 {
+       setFocusPolicy(Qt::ClickFocus);
        setMouseTracking(true);
 
-       connect(_action_set_name, SIGNAL(triggered()),
-               this, SLOT(on_action_set_name_triggered()));
-       connect(_action_set_colour, SIGNAL(triggered()),
-               this, SLOT(on_action_set_colour_triggered()));
+       connect(&_view, SIGNAL(signals_moved()),
+               this, SLOT(on_signals_moved()));
+}
+
+QSize Header::sizeHint() const
+{
+       QRectF max_rect(-Padding, 0, Padding, 0);
+       for (auto &i : _view)
+               if (i->enabled())
+                       max_rect = max_rect.united(i->label_rect(0));
+       return QSize(max_rect.width() + Padding + BaselineOffset, 0);
 }
 
-boost::shared_ptr<pv::view::Signal> Header::get_mouse_over_signal(
-       const QPoint &pt)
+shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt)
 {
-       const int w = width();
-       const vector< shared_ptr<Signal> > &sigs =
-               _view.session().get_signals();
+       const int w = width() - BaselineOffset;
+       for (auto &i : _view)
+               if (i->enabled() && i->label_rect(w).contains(pt))
+                       return i;
+       return shared_ptr<RowItem>();
+}
 
-       const int v_offset = _view.v_offset();
-       BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
-       {
-               assert(s);
+void Header::clear_selection()
+{
+       for (auto &i : _view)
+               i->select(false);
+       update();
+}
 
-               const QRect signal_heading_rect(
-                       0, s->get_v_offset() - v_offset,
-                       w, View::SignalHeight);
+void Header::show_popup(const shared_ptr<RowItem> &item)
+{
+       using pv::widgets::Popup;
 
-               if(s->pt_in_label_rect(signal_heading_rect, pt))
-                       return s;
-       }
+       Popup *const p = item->create_popup(&_view);
+       if (!p)
+               return;
 
-       return shared_ptr<Signal>();
+       const QPoint pt(width() - BaselineOffset, item->get_visual_y());
+       p->set_position(mapToGlobal(pt), Popup::Right);
+       p->show();
 }
 
-void Header::paintEvent(QPaintEvent *event)
+void Header::paintEvent(QPaintEvent*)
 {
-       const int w = width();
-       const vector< shared_ptr<Signal> > &sigs =
-               _view.session().get_signals();
+       // The trace labels are not drawn with the arrows exactly on the
+       // left edge of the widget, because then the selection shadow
+       // would be clipped away.
+       const int w = width() - BaselineOffset;
+
+       vector< shared_ptr<RowItem> > row_items(
+               _view.begin(), _view.end());
+
+       stable_sort(row_items.begin(), row_items.end(),
+               [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
+                       return a->visual_v_offset() < b->visual_v_offset(); });
 
        QPainter painter(this);
        painter.setRenderHint(QPainter::Antialiasing);
 
-       const int v_offset = _view.v_offset();
-       BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+       for (const shared_ptr<RowItem> r : row_items)
        {
-               assert(s);
+               assert(r);
 
-               const QRect signal_heading_rect(
-                       0, s->get_v_offset() - v_offset,
-                       w, View::SignalHeight);
-
-               s->paint_label(painter, signal_heading_rect,
-                       s->pt_in_label_rect(signal_heading_rect, _mouse_point));
+               const bool highlight = !_dragging &&
+                       r->label_rect(w).contains(_mouse_point);
+               r->paint_label(painter, w, highlight);
        }
 
        painter.end();
 }
 
+void Header::mouseLeftPressEvent(QMouseEvent *event)
+{
+       (void)event;
+
+       const bool ctrl_pressed =
+               QApplication::keyboardModifiers() & Qt::ControlModifier;
+
+       // Clear selection if control is not pressed and this item is unselected
+       if ((!_mouse_down_item || !_mouse_down_item->selected()) &&
+               !ctrl_pressed)
+               for (shared_ptr<RowItem> r : _view)
+                       r->select(false);
+
+       // Set the signal selection state if the item has been clicked
+       if (_mouse_down_item) {
+               if (ctrl_pressed)
+                       _mouse_down_item->select(!_mouse_down_item->selected());
+               else
+                       _mouse_down_item->select(true);
+       }
+
+       // Save the offsets of any signals which will be dragged
+       for (const shared_ptr<RowItem> r : _view)
+               if (r->selected())
+                       r->drag();
+
+       selection_changed();
+       update();
+}
+
 void Header::mousePressEvent(QMouseEvent *event)
 {
        assert(event);
 
-       const vector< shared_ptr<Signal> > &sigs =
-               _view.session().get_signals();
+       _mouse_down_point = event->pos();
+       _mouse_down_item = get_mouse_over_row_item(event->pos());
+
+       if (event->button() & Qt::LeftButton)
+               mouseLeftPressEvent(event);
+}
+
+void Header::mouseLeftReleaseEvent(QMouseEvent *event)
+{
+       assert(event);
+
+       const bool ctrl_pressed =
+               QApplication::keyboardModifiers() & Qt::ControlModifier;
+
+       // Unselect everything if control is not pressed
+       const shared_ptr<RowItem> mouse_over =
+               get_mouse_over_row_item(event->pos());
 
-       if(~QApplication::keyboardModifiers() & Qt::ControlModifier) {
-               // Unselect all other signals because the Ctrl is not
-               // pressed
-               BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
-                       s->select(false);
+       for (auto &r : _view)
+               r->drag_release();
+
+       if (!_dragging)
+       {
+               if (!ctrl_pressed) {
+                       for (shared_ptr<RowItem> r : _view)
+                               if (_mouse_down_item != r)
+                                       r->select(false);
+
+                       if (_mouse_down_item)
+                               show_popup(_mouse_down_item);
+               }
        }
 
-       // Select the signal if it has been clicked
-       const shared_ptr<Signal> mouse_over_signal =
-               get_mouse_over_signal(event->pos());
-       if(mouse_over_signal)
-               mouse_over_signal->select(!mouse_over_signal->selected());
+       _dragging = false;
+}
 
-       update();
+void Header::mouseReleaseEvent(QMouseEvent *event)
+{
+       assert(event);
+       if (event->button() & Qt::LeftButton)
+               mouseLeftReleaseEvent(event);
+
+       _mouse_down_item = nullptr;
 }
 
 void Header::mouseMoveEvent(QMouseEvent *event)
 {
        assert(event);
        _mouse_point = event->pos();
+
+       if (!(event->buttons() & Qt::LeftButton))
+               return;
+
+       if ((event->pos() - _mouse_down_point).manhattanLength() <
+               QApplication::startDragDistance())
+               return;
+
+       // Check all the drag items share a common owner
+       RowItemOwner *item_owner = nullptr;
+       for (shared_ptr<RowItem> r : _view)
+               if (r->dragging()) {
+                       if (!item_owner)
+                               item_owner = r->owner();
+                       else if(item_owner != r->owner())
+                               return;
+               }
+
+       if (!item_owner)
+               return;
+
+       // Do the drag
+       _dragging = true;
+
+       const int delta = event->pos().y() - _mouse_down_point.y();
+
+       for (std::shared_ptr<RowItem> r : _view)
+               if (r->dragging()) {
+                       r->force_to_v_offset(r->drag_point().y() + delta);
+
+                       // Ensure the trace is selected
+                       r->select();
+               }
+
+       signals_moved();
+
        update();
 }
 
-void Header::leaveEvent(QEvent *event)
+void Header::leaveEvent(QEvent*)
 {
        _mouse_point = QPoint(-1, -1);
        update();
@@ -142,44 +256,36 @@ void Header::leaveEvent(QEvent *event)
 
 void Header::contextMenuEvent(QContextMenuEvent *event)
 {
-       const shared_ptr<Signal> s = get_mouse_over_signal(_mouse_point);
-
-       if(!s)
+       const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point);
+       if (!r)
                return;
 
-       QMenu menu(this);
-       menu.addAction(_action_set_name);
-       menu.addAction(_action_set_colour);
+       QMenu *const menu = r->create_context_menu(this);
+       if (!menu)
+               return;
 
-       _context_signal = s;
-       menu.exec(event->globalPos());
-       _context_signal.reset();
+       menu->exec(event->globalPos());
 }
 
-void Header::on_action_set_name_triggered()
+void Header::keyPressEvent(QKeyEvent *e)
 {
-       shared_ptr<view::Signal> context_signal = _context_signal;
-       if(!context_signal)
-               return;
+       assert(e);
 
-       const QString new_label = QInputDialog::getText(this, tr("Set Name"),
-               tr("Name"), QLineEdit::Normal, context_signal->get_name());
-
-       if(!new_label.isEmpty())
-               context_signal->set_name(new_label);
+       switch (e->key())
+       {
+       case Qt::Key_Delete:
+       {
+               for (const shared_ptr<RowItem> r : _view)
+                       if (r->selected())
+                               r->delete_pressed();
+               break;
+       }
+       }
 }
 
-void Header::on_action_set_colour_triggered()
+void Header::on_signals_moved()
 {
-       shared_ptr<view::Signal> context_signal = _context_signal;
-       if(!context_signal)
-               return;
-
-       const QColor new_colour = QColorDialog::getColor(
-               context_signal->get_colour(), this, tr("Set Colour"));
-
-       if(new_colour.isValid())
-               context_signal->set_colour(new_colour);
+       update();
 }
 
 } // namespace view