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 "../sigsession.h"
29 #include <QApplication>
31 #include <QMouseEvent>
35 #include <pv/widgets/popup.h>
40 using std::shared_ptr;
46 const int Header::Padding = 12;
47 const int Header::BaselineOffset = 5;
49 Header::Header(View &parent) :
53 setFocusPolicy(Qt::ClickFocus);
54 setMouseTracking(true);
56 connect(&_view.session(), SIGNAL(signals_changed()),
57 this, SLOT(on_signals_changed()));
59 connect(&_view, SIGNAL(signals_moved()),
60 this, SLOT(on_signals_moved()));
62 // Trigger the initial event manually. The default device has signals
63 // which were created before this object came into being
67 QSize Header::sizeHint() const
71 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
72 for (shared_ptr<RowItem> r : row_items) {
76 max_width = max(max_width, (int)r->label_rect(0).width());
80 return QSize(max_width + Padding + BaselineOffset, 0);
83 shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt)
85 const int w = width() - BaselineOffset;
86 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
88 for (const shared_ptr<RowItem> r : row_items)
91 if (r->enabled() && r->label_rect(w).contains(pt))
95 return shared_ptr<RowItem>();
98 void Header::clear_selection()
100 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
101 for (const shared_ptr<RowItem> r : row_items) {
109 void Header::paintEvent(QPaintEvent*)
111 // The trace labels are not drawn with the arrows exactly on the
112 // left edge of the widget, because then the selection shadow
113 // would be clipped away.
114 const int w = width() - BaselineOffset;
115 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
117 QPainter painter(this);
118 painter.setRenderHint(QPainter::Antialiasing);
120 const bool dragging = !_drag_row_items.empty();
121 for (const shared_ptr<RowItem> r : row_items)
125 const bool highlight = !dragging &&
126 r->label_rect(w).contains(_mouse_point);
127 r->paint_label(painter, w, highlight);
133 void Header::mousePressEvent(QMouseEvent *event)
137 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
139 if (event->button() & Qt::LeftButton) {
140 _mouse_down_point = event->pos();
142 // Save the offsets of any signals which will be dragged
143 for (const shared_ptr<RowItem> r : row_items)
145 _drag_row_items.push_back(
146 make_pair(r, r->v_offset()));
149 // Select the signal if it has been clicked
150 const shared_ptr<RowItem> mouse_over_row_item =
151 get_mouse_over_row_item(event->pos());
152 if (mouse_over_row_item) {
153 if (mouse_over_row_item->selected())
154 mouse_over_row_item->select(false);
156 mouse_over_row_item->select(true);
158 if (~QApplication::keyboardModifiers() &
160 _drag_row_items.clear();
162 // Add the signal to the drag list
163 if (event->button() & Qt::LeftButton)
164 _drag_row_items.push_back(
165 make_pair(mouse_over_row_item,
166 mouse_over_row_item->v_offset()));
170 if (~QApplication::keyboardModifiers() & Qt::ControlModifier) {
171 // Unselect all other signals because the Ctrl is not
173 for (const shared_ptr<RowItem> r : row_items)
174 if (r != mouse_over_row_item)
182 void Header::mouseReleaseEvent(QMouseEvent *event)
184 using pv::widgets::Popup;
187 if (event->button() == Qt::LeftButton) {
189 _view.normalize_layout();
192 const shared_ptr<RowItem> mouse_over_row_item =
193 get_mouse_over_row_item(event->pos());
194 if (mouse_over_row_item) {
195 const int w = width() - BaselineOffset;
197 mouse_over_row_item->create_popup(&_view);
198 p->set_position(mapToGlobal(QPoint(w,
199 mouse_over_row_item->get_y())),
206 _drag_row_items.clear();
210 void Header::mouseMoveEvent(QMouseEvent *event)
213 _mouse_point = event->pos();
215 if (!(event->buttons() & Qt::LeftButton))
218 if ((event->pos() - _mouse_down_point).manhattanLength() <
219 QApplication::startDragDistance())
222 // Move the signals if we are dragging
223 if (!_drag_row_items.empty())
227 const int delta = event->pos().y() - _mouse_down_point.y();
229 for (auto i = _drag_row_items.begin();
230 i != _drag_row_items.end(); i++) {
231 const std::shared_ptr<RowItem> row_item((*i).first);
233 const int y = (*i).second + delta;
235 ((y + View::SignalSnapGridSize / 2) /
236 View::SignalSnapGridSize) *
237 View::SignalSnapGridSize;
238 row_item->set_v_offset(y_snap);
240 // Ensure the trace is selected
252 void Header::leaveEvent(QEvent*)
254 _mouse_point = QPoint(-1, -1);
258 void Header::contextMenuEvent(QContextMenuEvent *event)
260 const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point);
263 r->create_context_menu(this)->exec(event->globalPos());
266 void Header::keyPressEvent(QKeyEvent *e)
274 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
275 for (const shared_ptr<RowItem> r : row_items)
283 void Header::on_signals_changed()
285 const vector< shared_ptr<RowItem> > row_items(_view.child_items());
286 for (shared_ptr<RowItem> r : row_items) {
288 connect(r.get(), SIGNAL(visibility_changed()),
289 this, SLOT(on_trace_changed()));
290 connect(r.get(), SIGNAL(text_changed()),
291 this, SLOT(on_trace_changed()));
292 connect(r.get(), SIGNAL(colour_changed()),
293 this, SLOT(update()));
297 void Header::on_signals_moved()
302 void Header::on_trace_changed()