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 shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt)
85 const QRect r(0, 0, width() - BaselineOffset, height());
87 if (i->enabled() && i->label_rect(r).contains(pt))
89 return shared_ptr<RowItem>();
92 void Header::clear_selection()
99 void Header::paintEvent(QPaintEvent*)
101 // The trace labels are not drawn with the arrows exactly on the
102 // left edge of the widget, because then the selection shadow
103 // would be clipped away.
104 const QRect rect(0, 0, width() - BaselineOffset, height());
106 vector< shared_ptr<RowItem> > row_items(
107 view_.begin(), view_.end());
109 stable_sort(row_items.begin(), row_items.end(),
110 [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
111 return a->visual_v_offset() < b->visual_v_offset(); });
113 QPainter painter(this);
114 painter.setRenderHint(QPainter::Antialiasing);
116 for (const shared_ptr<RowItem> r : row_items)
120 const bool highlight = !dragging_ &&
121 r->label_rect(rect).contains(mouse_point_);
122 r->paint_label(painter, rect, highlight);
128 void Header::mouseLeftPressEvent(QMouseEvent *event)
132 const bool ctrl_pressed =
133 QApplication::keyboardModifiers() & Qt::ControlModifier;
135 // Clear selection if control is not pressed and this item is unselected
136 if ((!mouse_down_item_ || !mouse_down_item_->selected()) &&
138 for (shared_ptr<RowItem> r : view_)
141 // Set the signal selection state if the item has been clicked
142 if (mouse_down_item_) {
144 mouse_down_item_->select(!mouse_down_item_->selected());
146 mouse_down_item_->select(true);
149 // Save the offsets of any signals which will be dragged
150 for (const shared_ptr<RowItem> r : view_)
158 void Header::mousePressEvent(QMouseEvent *event)
162 mouse_down_point_ = event->pos();
163 mouse_down_item_ = get_mouse_over_item(event->pos());
165 if (event->button() & Qt::LeftButton)
166 mouseLeftPressEvent(event);
169 void Header::mouseLeftReleaseEvent(QMouseEvent *event)
173 const bool ctrl_pressed =
174 QApplication::keyboardModifiers() & Qt::ControlModifier;
176 // Unselect everything if control is not pressed
177 const shared_ptr<ViewItem> mouse_over =
178 get_mouse_over_item(event->pos());
180 for (auto &r : view_)
184 view_.restack_all_row_items();
188 for (shared_ptr<RowItem> r : view_)
189 if (mouse_down_item_ != r)
192 if (mouse_down_item_)
193 show_popup(mouse_down_item_);
200 void Header::mouseReleaseEvent(QMouseEvent *event)
203 if (event->button() & Qt::LeftButton)
204 mouseLeftReleaseEvent(event);
206 mouse_down_item_ = nullptr;
209 void Header::mouseMoveEvent(QMouseEvent *event)
212 mouse_point_ = event->pos();
214 if (!(event->buttons() & Qt::LeftButton))
217 if ((event->pos() - mouse_down_point_).manhattanLength() <
218 QApplication::startDragDistance())
221 // Check all the drag items share a common owner
222 RowItemOwner *item_owner = nullptr;
223 for (shared_ptr<RowItem> r : view_)
226 item_owner = r->owner();
227 else if(item_owner != r->owner())
237 const QPoint delta = event->pos() - mouse_down_point_;
239 for (std::shared_ptr<RowItem> r : view_)
243 // Ensure the trace is selected
247 item_owner->restack_items();
248 for (const auto &r : *item_owner)
249 r->animate_to_layout_v_offset();
255 void Header::contextMenuEvent(QContextMenuEvent *event)
257 const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
261 QMenu *menu = r->create_context_menu(this);
263 menu = new QMenu(this);
265 if (std::count_if(view_.begin(), view_.end(), item_selected) > 1)
267 menu->addSeparator();
269 QAction *const group = new QAction(tr("Group"), this);
270 QList<QKeySequence> shortcuts;
271 shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G));
272 group->setShortcuts(shortcuts);
273 connect(group, SIGNAL(triggered()), this, SLOT(on_group()));
274 menu->addAction(group);
277 menu->exec(event->globalPos());
280 void Header::keyPressEvent(QKeyEvent *e)
284 if (e->key() == Qt::Key_Delete)
286 for (const shared_ptr<RowItem> r : view_)
290 else if (e->key() == Qt::Key_G && e->modifiers() == Qt::ControlModifier)
292 else if (e->key() == Qt::Key_U && e->modifiers() == Qt::ControlModifier)
296 void Header::on_signals_moved()
301 void Header::on_group()
303 vector< shared_ptr<RowItem> > selected_items(
304 make_filter_iterator(item_selected, view_.begin(), view_.end()),
305 make_filter_iterator(item_selected, view_.end(), view_.end()));
306 stable_sort(selected_items.begin(), selected_items.end(),
307 [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
308 return a->visual_v_offset() < b->visual_v_offset(); });
310 shared_ptr<TraceGroup> group(new TraceGroup());
311 shared_ptr<RowItem> mouse_down_item(
312 std::dynamic_pointer_cast<RowItem>(mouse_down_item_));
313 shared_ptr<RowItem> focus_item(
314 mouse_down_item ? mouse_down_item : selected_items.front());
317 assert(focus_item->owner());
318 focus_item->owner()->add_child_item(group);
320 // Set the group v_offset here before reparenting
321 group->force_to_v_offset(focus_item->layout_v_offset() +
322 focus_item->v_extents().first);
324 for (size_t i = 0; i < selected_items.size(); i++) {
325 const shared_ptr<RowItem> &r = selected_items[i];
327 r->owner()->remove_child_item(r);
328 group->add_child_item(r);
330 // Put the items at 1-pixel offsets, so that restack will
331 // stack them in the right order
332 r->set_layout_v_offset(i);
336 void Header::on_ungroup()
341 for (const shared_ptr<RowItem> r : view_) {
342 const shared_ptr<TraceGroup> tg =
343 dynamic_pointer_cast<TraceGroup>(r);
344 if (tg && tg->selected()) {