--- /dev/null
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "header.hpp"
+#include "view.hpp"
+
+#include "signal.hpp"
+#include "tracegroup.hpp"
+
+#include <algorithm>
+#include <cassert>
+
+#include <boost/iterator/filter_iterator.hpp>
+
+#include <QApplication>
+#include <QMenu>
+#include <QMouseEvent>
+#include <QPainter>
+#include <QRect>
+
+#include <pv/session.hpp>
+#include <pv/widgets/popup.hpp>
+
+using boost::make_filter_iterator;
+
+using std::count_if;
+using std::dynamic_pointer_cast;
+using std::shared_ptr;
+using std::stable_sort;
+using std::vector;
+
+namespace pv {
+namespace views {
+namespace trace {
+
+const int Header::Padding = 12;
+
+static bool item_selected(shared_ptr<TraceTreeItem> r)
+{
+ return r->selected();
+}
+
+Header::Header(View &parent) :
+ MarginWidget(parent)
+{
+}
+
+QSize Header::sizeHint() const
+{
+ QRectF max_rect(-Padding, 0, Padding, 0);
+ const vector<shared_ptr<TraceTreeItem>> items(
+ view_.list_by_type<TraceTreeItem>());
+ for (auto &i : items)
+ if (i->enabled())
+ max_rect = max_rect.united(i->label_rect(QRect()));
+ return QSize(max_rect.width() + Padding, 0);
+}
+
+QSize Header::extended_size_hint() const
+{
+ return sizeHint() + QSize(ViewItem::HighlightRadius, 0);
+}
+
+vector< shared_ptr<ViewItem> > Header::items()
+{
+ const vector<shared_ptr<TraceTreeItem>> items(
+ view_.list_by_type<TraceTreeItem>());
+ return vector< shared_ptr<ViewItem> >(items.begin(), items.end());
+}
+
+shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt)
+{
+ const QRect r(0, 0, width(), height());
+ const vector<shared_ptr<TraceTreeItem>> items(
+ view_.list_by_type<TraceTreeItem>());
+ for (auto i = items.rbegin(); i != items.rend(); i++)
+ if ((*i)->enabled() && (*i)->label_rect(r).contains(pt))
+ return *i;
+ return shared_ptr<TraceTreeItem>();
+}
+
+void Header::paintEvent(QPaintEvent*)
+{
+ const QRect rect(0, 0, width(), height());
+
+ vector< shared_ptr<RowItem> > items(view_.list_by_type<RowItem>());
+
+ stable_sort(items.begin(), items.end(),
+ [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
+ return a->point(QRect()).y() < b->point(QRect()).y(); });
+
+ QPainter painter(this);
+ painter.setRenderHint(QPainter::Antialiasing);
+
+ for (const shared_ptr<RowItem> r : items) {
+ assert(r);
+
+ const bool highlight = !item_dragging_ &&
+ r->label_rect(rect).contains(mouse_point_);
+ r->paint_label(painter, rect, highlight);
+ }
+
+ painter.end();
+}
+
+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);
+
+ const vector< shared_ptr<TraceTreeItem> > items(
+ view_.list_by_type<TraceTreeItem>());
+ if (count_if(items.begin(), items.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 *event)
+{
+ assert(event);
+
+ MarginWidget::keyPressEvent(event);
+
+ if (event->key() == Qt::Key_G && event->modifiers() == Qt::ControlModifier)
+ on_group();
+ else if (event->key() == Qt::Key_U && event->modifiers() == Qt::ControlModifier)
+ on_ungroup();
+}
+
+void Header::on_group()
+{
+ const vector< shared_ptr<TraceTreeItem> > items(
+ view_.list_by_type<TraceTreeItem>());
+ vector< shared_ptr<TraceTreeItem> > selected_items(
+ make_filter_iterator(item_selected, items.begin(), items.end()),
+ make_filter_iterator(item_selected, items.end(), items.end()));
+ stable_sort(selected_items.begin(), selected_items.end(),
+ [](const shared_ptr<TraceTreeItem> &a, const shared_ptr<TraceTreeItem> &b) {
+ return a->visual_v_offset() < b->visual_v_offset(); });
+
+ shared_ptr<TraceGroup> group(new TraceGroup());
+ shared_ptr<TraceTreeItem> mouse_down_item(
+ dynamic_pointer_cast<TraceTreeItem>(mouse_down_item_));
+ shared_ptr<TraceTreeItem> 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<TraceTreeItem> &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;
+ const vector< shared_ptr<TraceGroup> > groups(
+ view_.list_by_type<TraceGroup>());
+ for (const shared_ptr<TraceGroup> tg : groups)
+ if (tg->selected()) {
+ tg->ungroup();
+ restart = true;
+ break;
+ }
+ } while (restart);
+}
+
+} // namespace trace
+} // namespace views
+} // namespace pv
projects / pulseview.git / blobdiff