* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "header.h"
-#include "view.h"
+#include "header.hpp"
+#include "view.hpp"
-#include "../signal.h"
-#include "../sigsession.h"
+#include "signal.hpp"
+#include "tracegroup.hpp"
-#include <assert.h>
+#include <cassert>
+#include <algorithm>
-#include <boost/foreach.hpp>
+#include <boost/iterator/filter_iterator.hpp>
+#include <QApplication>
+#include <QMenu>
+#include <QMouseEvent>
#include <QPainter>
#include <QRect>
-using namespace boost;
-using namespace std;
+#include <pv/session.hpp>
+#include <pv/widgets/popup.hpp>
+
+using boost::make_filter_iterator;
+using std::dynamic_pointer_cast;
+using std::max;
+using std::make_pair;
+using std::min;
+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;
+
+static bool item_selected(shared_ptr<RowItem> r)
+{
+ return r->selected();
+}
+
Header::Header(View &parent) :
- QWidget(&parent),
- _view(parent)
+ MarginWidget(parent)
+{
+ 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(QRect()));
+ return QSize(max_rect.width() + Padding + BaselineOffset, 0);
+}
+
+QSize Header::extended_size_hint() const
{
+ return sizeHint() + QSize(ViewItem::HighlightRadius, 0);
}
-void Header::paintEvent(QPaintEvent *event)
+vector< shared_ptr<ViewItem> > Header::items()
{
- const int w = width();
- const vector< shared_ptr<Signal> > &sigs =
- _view.session().get_signals();
+ return vector< shared_ptr<ViewItem> >(view_.begin(), view_.end());
+}
+
+shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt)
+{
+ const QRect r(0, 0, width() - BaselineOffset, height());
+ for (auto &i : view_)
+ if (i->enabled() && i->label_rect(r).contains(pt))
+ return i;
+ return shared_ptr<RowItem>();
+}
+
+void Header::paintEvent(QPaintEvent*)
+{
+ // 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 QRect rect(0, 0, width() - BaselineOffset, height());
+
+ 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);
- int offset = -_view.v_offset();
- BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
+ 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(rect).contains(mouse_point_);
+ r->paint_label(painter, rect, 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);
+
+ mouse_down_point_ = event->pos();
+ mouse_down_item_ = get_mouse_over_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<ViewItem> mouse_over =
+ get_mouse_over_item(event->pos());
+
+ for (auto &r : view_)
+ r->drag_release();
+
+ if (dragging_)
+ view_.restack_all_row_items();
+ else
+ {
+ 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_);
+ }
+ }
+
+ dragging_ = false;
+}
+
+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 QPoint delta = event->pos() - mouse_down_point_;
+
+ for (std::shared_ptr<RowItem> r : view_)
+ if (r->dragging()) {
+ r->drag_by(delta);
+
+ // Ensure the trace is selected
+ r->select();
+ }
+
+ item_owner->restack_items();
+ for (const auto &r : *item_owner)
+ r->animate_to_layout_v_offset();
+ signals_moved();
+
+ update();
+}
+
+void Header::contextMenuEvent(QContextMenuEvent *event)
+{
+ const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
+ if (!r)
+ return;
+
+ QMenu *menu = r->create_context_menu(this);
+ if (!menu)
+ menu = new QMenu(this);
+
+ if (std::count_if(view_.begin(), view_.end(), item_selected) > 1)
+ {
+ menu->addSeparator();
+
+ QAction *const group = new QAction(tr("Group"), this);
+ QList<QKeySequence> shortcuts;
+ shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G));
+ group->setShortcuts(shortcuts);
+ connect(group, SIGNAL(triggered()), this, SLOT(on_group()));
+ menu->addAction(group);
+ }
+
+ menu->exec(event->globalPos());
+}
+
+void Header::keyPressEvent(QKeyEvent *e)
+{
+ assert(e);
+
+ if (e->key() == Qt::Key_Delete)
+ {
+ for (const shared_ptr<RowItem> r : view_)
+ if (r->selected())
+ r->delete_pressed();
+ }
+ else if (e->key() == Qt::Key_G && e->modifiers() == Qt::ControlModifier)
+ on_group();
+ else if (e->key() == Qt::Key_U && e->modifiers() == Qt::ControlModifier)
+ on_ungroup();
+}
+
+void Header::on_signals_moved()
+{
+ update();
+}
+
+void Header::on_group()
+{
+ vector< shared_ptr<RowItem> > selected_items(
+ make_filter_iterator(item_selected, view_.begin(), view_.end()),
+ make_filter_iterator(item_selected, view_.end(), view_.end()));
+ stable_sort(selected_items.begin(), selected_items.end(),
+ [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
+ return a->visual_v_offset() < b->visual_v_offset(); });
+
+ shared_ptr<TraceGroup> group(new TraceGroup());
+ shared_ptr<RowItem> mouse_down_item(
+ std::dynamic_pointer_cast<RowItem>(mouse_down_item_));
+ shared_ptr<RowItem> focus_item(
+ mouse_down_item ? mouse_down_item : selected_items.front());
+
+ assert(focus_item);
+ assert(focus_item->owner());
+ focus_item->owner()->add_child_item(group);
+
+ // Set the group v_offset here before reparenting
+ group->force_to_v_offset(focus_item->layout_v_offset() +
+ focus_item->v_extents().first);
+
+ for (size_t i = 0; i < selected_items.size(); i++) {
+ const shared_ptr<RowItem> &r = selected_items[i];
+ assert(r->owner());
+ r->owner()->remove_child_item(r);
+ group->add_child_item(r);
+
+ // Put the items at 1-pixel offsets, so that restack will
+ // stack them in the right order
+ r->set_layout_v_offset(i);
+ }
+}
+
+void Header::on_ungroup()
+{
+ bool restart;
+ do {
+ restart = false;
+ for (const shared_ptr<RowItem> r : view_) {
+ const shared_ptr<TraceGroup> tg =
+ dynamic_pointer_cast<TraceGroup>(r);
+ if (tg && tg->selected()) {
+ tg->ungroup();
+ restart = true;
+ break;
+ }
+ }
+ } while(restart);
+}
+
} // namespace view
} // namespace pv
projects / pulseview.git / blobdiff