#include "header.h"
#include "view.h"
-#include "../signal.h"
+#include "signal.h"
#include "../sigsession.h"
-#include <assert.h>
-
-#include <boost/foreach.hpp>
+#include <cassert>
+#include <algorithm>
+#include <QApplication>
+#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)
+ MarginWidget(parent),
+ _dragging(false)
+{
+ setFocusPolicy(Qt::ClickFocus);
+ setMouseTracking(true);
+
+ connect(&_view.session(), SIGNAL(signals_changed()),
+ this, SLOT(on_signals_changed()));
+
+ 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);
+}
+
+shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt)
+{
+ const int w = width() - BaselineOffset;
+ for (auto &i : _view)
+ if (i->enabled() && i->label_rect(w).contains(pt))
+ return i;
+ return shared_ptr<RowItem>();
+}
+
+void Header::clear_selection()
+{
+ for (auto &i : _view)
+ i->select(false);
+ update();
+}
+
+void Header::show_popup(const shared_ptr<RowItem> &item)
{
+ using pv::widgets::Popup;
+
+ Popup *const p = item->create_popup(&_view);
+ if (!p)
+ return;
+
+ const QPoint pt(width() - BaselineOffset, item->get_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->v_offset() < b->v_offset(); });
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
- int offset = -_view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+ const bool dragging = !_drag_row_items.empty();
+ for (const shared_ptr<RowItem> r : row_items)
{
- assert(s);
-
- const QRect label_rect(0, offset, w, View::SignalHeight);
- s->paint_label(painter, label_rect);
+ assert(r);
- offset += View::SignalHeight;
+ const bool highlight = !dragging &&
+ r->label_rect(w).contains(_mouse_point);
+ r->paint_label(painter, w, highlight);
}
painter.end();
}
+void Header::mousePressEvent(QMouseEvent *event)
+{
+ assert(event);
+
+ if (event->button() & Qt::LeftButton) {
+ _mouse_down_point = event->pos();
+
+ // Save the offsets of any signals which will be dragged
+ for (const shared_ptr<RowItem> r : _view)
+ if (r->selected())
+ _drag_row_items.push_back(
+ make_pair(r, r->v_offset()));
+ }
+
+ // Select the signal if it has been clicked
+ const shared_ptr<RowItem> mouse_over_row_item =
+ get_mouse_over_row_item(event->pos());
+ if (mouse_over_row_item) {
+ if (mouse_over_row_item->selected())
+ mouse_over_row_item->select(false);
+ else {
+ mouse_over_row_item->select(true);
+
+ if (~QApplication::keyboardModifiers() &
+ Qt::ControlModifier)
+ _drag_row_items.clear();
+
+ // Add the signal to the drag list
+ if (event->button() & Qt::LeftButton)
+ _drag_row_items.push_back(
+ make_pair(mouse_over_row_item,
+ mouse_over_row_item->v_offset()));
+ }
+ }
+
+ if (~QApplication::keyboardModifiers() & Qt::ControlModifier) {
+ // Unselect all other signals because the Ctrl is not
+ // pressed
+ for (const shared_ptr<RowItem> r : _view)
+ if (r != mouse_over_row_item)
+ r->select(false);
+ }
+
+ selection_changed();
+ update();
+}
+
+void Header::mouseReleaseEvent(QMouseEvent *event)
+{
+ assert(event);
+ if (event->button() == Qt::LeftButton) {
+ if (_dragging)
+ _view.normalize_layout();
+ else
+ {
+ const shared_ptr<RowItem> mouse_over_row_item =
+ get_mouse_over_row_item(event->pos());
+ if (mouse_over_row_item)
+ show_popup(mouse_over_row_item);
+ }
+
+ _dragging = false;
+ _drag_row_items.clear();
+ }
+}
+
+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;
+
+ // Move the signals if we are dragging
+ if (!_drag_row_items.empty())
+ {
+ _dragging = true;
+
+ const int delta = event->pos().y() - _mouse_down_point.y();
+
+ for (auto i = _drag_row_items.begin();
+ i != _drag_row_items.end(); i++) {
+ const std::shared_ptr<RowItem> row_item((*i).first);
+ if (row_item) {
+ const int y = (*i).second + delta;
+ const int y_snap =
+ ((y + View::SignalSnapGridSize / 2) /
+ View::SignalSnapGridSize) *
+ View::SignalSnapGridSize;
+ row_item->set_v_offset(y_snap);
+
+ // Ensure the trace is selected
+ row_item->select();
+ }
+
+ }
+
+ signals_moved();
+ }
+
+ update();
+}
+
+void Header::leaveEvent(QEvent*)
+{
+ _mouse_point = QPoint(-1, -1);
+ update();
+}
+
+void Header::contextMenuEvent(QContextMenuEvent *event)
+{
+ const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point);
+ if (!r)
+ return;
+
+ QMenu *const menu = r->create_context_menu(this);
+ if (!menu)
+ return;
+
+ menu->exec(event->globalPos());
+}
+
+void Header::keyPressEvent(QKeyEvent *e)
+{
+ assert(e);
+
+ switch (e->key())
+ {
+ case Qt::Key_Delete:
+ {
+ for (const shared_ptr<RowItem> r : _view)
+ if (r->selected())
+ r->delete_pressed();
+ break;
+ }
+ }
+}
+
+void Header::on_signals_changed()
+{
+ for (shared_ptr<RowItem> r : _view) {
+ assert(r);
+ connect(r.get(), SIGNAL(visibility_changed()),
+ this, SLOT(on_trace_changed()));
+ connect(r.get(), SIGNAL(text_changed()),
+ this, SLOT(on_trace_changed()));
+ connect(r.get(), SIGNAL(colour_changed()),
+ this, SLOT(update()));
+ }
+}
+
+void Header::on_signals_moved()
+{
+ update();
+}
+
+void Header::on_trace_changed()
+{
+ update();
+ geometry_updated();
+}
+
} // namespace view
} // namespace pv
projects / pulseview.git / blobdiff