2 * This file is part of the PulseView project.
4 * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "tracegroup.hpp"
30 #include <boost/iterator/filter_iterator.hpp>
32 #include <QApplication>
34 #include <QMouseEvent>
38 #include <pv/session.hpp>
39 #include <pv/widgets/popup.hpp>
41 using boost::make_filter_iterator;
42 using std::dynamic_pointer_cast;
47 using std::shared_ptr;
48 using std::stable_sort;
54 const int Header::Padding = 12;
55 const int Header::BaselineOffset = 5;
57 static bool item_selected(shared_ptr<RowItem> r)
62 Header::Header(View &parent) :
65 connect(&view_, SIGNAL(signals_moved()),
66 this, SLOT(on_signals_moved()));
69 QSize Header::sizeHint() const
71 QRectF max_rect(-Padding, 0, Padding, 0);
74 max_rect = max_rect.united(i->label_rect(QRect()));
75 return QSize(max_rect.width() + Padding + BaselineOffset, 0);
78 QSize Header::extended_size_hint() const
80 return sizeHint() + QSize(ViewItem::HighlightRadius, 0);
83 vector< shared_ptr<ViewItem> > Header::items()
85 return vector< shared_ptr<ViewItem> >(view_.begin(), view_.end());
88 shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt)
90 const QRect r(0, 0, width() - BaselineOffset, height());
92 if (i->enabled() && i->label_rect(r).contains(pt))
94 return shared_ptr<RowItem>();
97 void Header::paintEvent(QPaintEvent*)
99 // The trace labels are not drawn with the arrows exactly on the
100 // left edge of the widget, because then the selection shadow
101 // would be clipped away.
102 const QRect rect(0, 0, width() - BaselineOffset, height());
104 vector< shared_ptr<RowItem> > row_items(
105 view_.begin(), view_.end());
107 stable_sort(row_items.begin(), row_items.end(),
108 [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
109 return a->visual_v_offset() < b->visual_v_offset(); });
111 QPainter painter(this);
112 painter.setRenderHint(QPainter::Antialiasing);
114 for (const shared_ptr<RowItem> r : row_items)
118 const bool highlight = !dragging_ &&
119 r->label_rect(rect).contains(mouse_point_);
120 r->paint_label(painter, rect, highlight);
126 void Header::mouseLeftReleaseEvent(QMouseEvent *event)
130 const bool ctrl_pressed =
131 QApplication::keyboardModifiers() & Qt::ControlModifier;
133 // Unselect everything if control is not pressed
134 const shared_ptr<ViewItem> mouse_over =
135 get_mouse_over_item(event->pos());
137 for (auto &r : view_)
141 view_.restack_all_row_items();
145 for (shared_ptr<RowItem> r : view_)
146 if (mouse_down_item_ != r)
149 if (mouse_down_item_)
150 show_popup(mouse_down_item_);
157 void Header::mouseReleaseEvent(QMouseEvent *event)
160 if (event->button() & Qt::LeftButton)
161 mouseLeftReleaseEvent(event);
163 mouse_down_item_ = nullptr;
166 void Header::mouseMoveEvent(QMouseEvent *event)
169 mouse_point_ = event->pos();
171 if (!(event->buttons() & Qt::LeftButton))
174 if ((event->pos() - mouse_down_point_).manhattanLength() <
175 QApplication::startDragDistance())
178 // Check all the drag items share a common owner
179 RowItemOwner *item_owner = nullptr;
180 for (shared_ptr<RowItem> r : view_)
183 item_owner = r->owner();
184 else if(item_owner != r->owner())
194 const QPoint delta = event->pos() - mouse_down_point_;
196 for (std::shared_ptr<RowItem> r : view_)
200 // Ensure the trace is selected
204 item_owner->restack_items();
205 for (const auto &r : *item_owner)
206 r->animate_to_layout_v_offset();
212 void Header::contextMenuEvent(QContextMenuEvent *event)
214 const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
218 QMenu *menu = r->create_context_menu(this);
220 menu = new QMenu(this);
222 if (std::count_if(view_.begin(), view_.end(), item_selected) > 1)
224 menu->addSeparator();
226 QAction *const group = new QAction(tr("Group"), this);
227 QList<QKeySequence> shortcuts;
228 shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G));
229 group->setShortcuts(shortcuts);
230 connect(group, SIGNAL(triggered()), this, SLOT(on_group()));
231 menu->addAction(group);
234 menu->exec(event->globalPos());
237 void Header::keyPressEvent(QKeyEvent *e)
241 MarginWidget::keyPressEvent(e);
243 if (e->key() == Qt::Key_G && e->modifiers() == Qt::ControlModifier)
245 else if (e->key() == Qt::Key_U && e->modifiers() == Qt::ControlModifier)
249 void Header::on_signals_moved()
254 void Header::on_group()
256 vector< shared_ptr<RowItem> > selected_items(
257 make_filter_iterator(item_selected, view_.begin(), view_.end()),
258 make_filter_iterator(item_selected, view_.end(), view_.end()));
259 stable_sort(selected_items.begin(), selected_items.end(),
260 [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
261 return a->visual_v_offset() < b->visual_v_offset(); });
263 shared_ptr<TraceGroup> group(new TraceGroup());
264 shared_ptr<RowItem> mouse_down_item(
265 std::dynamic_pointer_cast<RowItem>(mouse_down_item_));
266 shared_ptr<RowItem> focus_item(
267 mouse_down_item ? mouse_down_item : selected_items.front());
270 assert(focus_item->owner());
271 focus_item->owner()->add_child_item(group);
273 // Set the group v_offset here before reparenting
274 group->force_to_v_offset(focus_item->layout_v_offset() +
275 focus_item->v_extents().first);
277 for (size_t i = 0; i < selected_items.size(); i++) {
278 const shared_ptr<RowItem> &r = selected_items[i];
280 r->owner()->remove_child_item(r);
281 group->add_child_item(r);
283 // Put the items at 1-pixel offsets, so that restack will
284 // stack them in the right order
285 r->set_layout_v_offset(i);
289 void Header::on_ungroup()
294 for (const shared_ptr<RowItem> r : view_) {
295 const shared_ptr<TraceGroup> tg =
296 dynamic_pointer_cast<TraceGroup>(r);
297 if (tg && tg->selected()) {