+++ /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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include "header.h"
-#include "view.h"
-
-#include "signal.h"
-#include "../sigsession.h"
-
-#include <assert.h>
-
-#include <boost/foreach.hpp>
-
-#include <QApplication>
-#include <QMenu>
-#include <QMouseEvent>
-#include <QPainter>
-#include <QRect>
-
-#include <pv/widgets/popup.h>
-
-using boost::shared_ptr;
-using std::max;
-using std::make_pair;
-using std::pair;
-using std::vector;
-
-namespace pv {
-namespace view {
-
-const int Header::Padding = 12;
-
-Header::Header(View &parent) :
- MarginWidget(parent),
- _dragging(false)
-{
- setFocusPolicy(Qt::ClickFocus);
- setMouseTracking(true);
-
- connect(&_view.session(), SIGNAL(signals_changed()),
- this, SLOT(on_signals_changed()));
-
- connect(&_view, SIGNAL(signals_moved()),
- this, SLOT(on_signals_moved()));
-
- // Trigger the initial event manually. The default device has signals
- // which were created before this object came into being
- on_signals_changed();
-}
-
-QSize Header::sizeHint() const
-{
- int max_width = 0;
-
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(shared_ptr<Trace> t, traces) {
- assert(t);
-
- if (t->enabled()) {
- max_width = max(max_width, (int)t->get_label_rect(0).width());
- }
- }
-
- return QSize(max_width + Padding, 0);
-}
-
-shared_ptr<Trace> Header::get_mouse_over_trace(const QPoint &pt)
-{
- const int w = width();
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
-
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- {
- assert(t);
- if (t->pt_in_label_rect(0, w, pt))
- return t;
- }
-
- return shared_ptr<Trace>();
-}
-
-void Header::clear_selection()
-{
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(const shared_ptr<Trace> t, traces) {
- assert(t);
- t->select(false);
- }
-
- update();
-}
-
-void Header::paintEvent(QPaintEvent*)
-{
- const int w = width();
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
-
- QPainter painter(this);
- painter.setRenderHint(QPainter::Antialiasing);
-
- const bool dragging = !_drag_traces.empty();
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- {
- assert(t);
-
- const bool highlight = !dragging && t->pt_in_label_rect(
- 0, w, _mouse_point);
- t->paint_label(painter, w, highlight);
- }
-
- painter.end();
-}
-
-void Header::mousePressEvent(QMouseEvent *event)
-{
- assert(event);
-
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
-
- if (event->button() & Qt::LeftButton) {
- _mouse_down_point = event->pos();
-
- // Save the offsets of any signals which will be dragged
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- if (t->selected())
- _drag_traces.push_back(
- make_pair(t, t->get_v_offset()));
- }
-
- // Select the signal if it has been clicked
- const shared_ptr<Trace> mouse_over_trace =
- get_mouse_over_trace(event->pos());
- if (mouse_over_trace) {
- if (mouse_over_trace->selected())
- mouse_over_trace->select(false);
- else {
- mouse_over_trace->select(true);
-
- if (~QApplication::keyboardModifiers() &
- Qt::ControlModifier)
- _drag_traces.clear();
-
- // Add the signal to the drag list
- if (event->button() & Qt::LeftButton)
- _drag_traces.push_back(
- make_pair(mouse_over_trace,
- mouse_over_trace->get_v_offset()));
- }
- }
-
- if (~QApplication::keyboardModifiers() & Qt::ControlModifier) {
- // Unselect all other signals because the Ctrl is not
- // pressed
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- if (t != mouse_over_trace)
- t->select(false);
- }
-
- selection_changed();
- update();
-}
-
-void Header::mouseReleaseEvent(QMouseEvent *event)
-{
- using pv::widgets::Popup;
-
- assert(event);
- if (event->button() == Qt::LeftButton) {
- if (_dragging)
- _view.normalize_layout();
- else
- {
- const shared_ptr<Trace> mouse_over_trace =
- get_mouse_over_trace(event->pos());
- if (mouse_over_trace) {
- Popup *const p =
- mouse_over_trace->create_popup(&_view);
- p->set_position(mapToGlobal(QPoint(width(),
- mouse_over_trace->get_y())),
- Popup::Right);
- p->show();
- }
- }
-
- _dragging = false;
- _drag_traces.clear();
- }
-}
-
-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;
-
- // Move the signals if we are dragging
- if (!_drag_traces.empty())
- {
- _dragging = true;
-
- const int delta = event->pos().y() - _mouse_down_point.y();
-
- for (auto i = _drag_traces.begin(); i != _drag_traces.end(); i++) {
- const boost::shared_ptr<Trace> trace((*i).first);
- if (trace) {
- const int y = (*i).second + delta;
- const int y_snap =
- ((y + View::SignalSnapGridSize / 2) /
- View::SignalSnapGridSize) *
- View::SignalSnapGridSize;
- trace->set_v_offset(y_snap);
-
- // Ensure the trace is selected
- trace->select();
- }
-
- }
-
- signals_moved();
- }
-
- update();
-}
-
-void Header::leaveEvent(QEvent*)
-{
- _mouse_point = QPoint(-1, -1);
- update();
-}
-
-void Header::contextMenuEvent(QContextMenuEvent *event)
-{
- const shared_ptr<Trace> t = get_mouse_over_trace(_mouse_point);
-
- if (t)
- t->create_context_menu(this)->exec(event->globalPos());
-}
-
-void Header::keyPressEvent(QKeyEvent *e)
-{
- assert(e);
-
- switch (e->key())
- {
- case Qt::Key_Delete:
- {
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(const shared_ptr<Trace> t, traces)
- if (t->selected())
- t->delete_pressed();
- break;
- }
- }
-}
-
-void Header::on_signals_changed()
-{
- const vector< shared_ptr<Trace> > traces(_view.get_traces());
- BOOST_FOREACH(shared_ptr<Trace> t, traces) {
- assert(t);
- connect(t.get(), SIGNAL(visibility_changed()),
- this, SLOT(on_trace_changed()));
- connect(t.get(), SIGNAL(text_changed()),
- this, SLOT(on_trace_changed()));
- connect(t.get(), SIGNAL(colour_changed()),
- this, SLOT(update()));
- }
-}
-
-void Header::on_signals_moved()
-{
- update();
-}
-
-void Header::on_trace_changed()
-{
- update();
- geometry_updated();
-}
-
-} // namespace view
-} // namespace pv
projects / pulseview.git / blobdiff