+++ /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 <cassert>
-#include <algorithm>
-
-#include <QApplication>
-#include <QMenu>
-#include <QMouseEvent>
-#include <QPainter>
-#include <QRect>
-
-#include <pv/widgets/popup.h>
-
-using std::max;
-using std::make_pair;
-using std::pair;
-using std::shared_ptr;
-using std::stable_sort;
-using std::vector;
-
-namespace pv {
-namespace view {
-
-const int Header::Padding = 12;
-const int Header::BaselineOffset = 5;
-
-Header::Header(View &parent) :
- MarginWidget(parent),
- _dragging(false)
-{
- setFocusPolicy(Qt::ClickFocus);
- setMouseTracking(true);
-
- connect(&_view, SIGNAL(signals_moved()),
- this, SLOT(on_signals_moved()));
-}
-
-QSize Header::sizeHint() const
-{
- QRectF max_rect(-Padding, 0, Padding, 0);
- for (auto &i : _view)
- if (i->enabled())
- max_rect = max_rect.united(i->label_rect(0));
- return QSize(max_rect.width() + Padding + BaselineOffset, 0);
-}
-
-shared_ptr<RowItem> Header::get_mouse_over_row_item(const QPoint &pt)
-{
- const int w = width() - BaselineOffset;
- for (auto &i : _view)
- if (i->enabled() && i->label_rect(w).contains(pt))
- return i;
- return shared_ptr<RowItem>();
-}
-
-void Header::clear_selection()
-{
- for (auto &i : _view)
- i->select(false);
- update();
-}
-
-void Header::show_popup(const shared_ptr<RowItem> &item)
-{
- using pv::widgets::Popup;
-
- Popup *const p = item->create_popup(&_view);
- if (!p)
- return;
-
- const QPoint pt(width() - BaselineOffset, item->get_visual_y());
- p->set_position(mapToGlobal(pt), Popup::Right);
- p->show();
-}
-
-void Header::paintEvent(QPaintEvent*)
-{
- // The trace labels are not drawn with the arrows exactly on the
- // left edge of the widget, because then the selection shadow
- // would be clipped away.
- const int w = width() - BaselineOffset;
-
- vector< shared_ptr<RowItem> > row_items(
- _view.begin(), _view.end());
-
- stable_sort(row_items.begin(), row_items.end(),
- [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
- return a->visual_v_offset() < b->visual_v_offset(); });
-
- QPainter painter(this);
- painter.setRenderHint(QPainter::Antialiasing);
-
- for (const shared_ptr<RowItem> r : row_items)
- {
- assert(r);
-
- const bool highlight = !_dragging &&
- r->label_rect(w).contains(_mouse_point);
- r->paint_label(painter, w, highlight);
- }
-
- painter.end();
-}
-
-void Header::mouseLeftPressEvent(QMouseEvent *event)
-{
- (void)event;
-
- const bool ctrl_pressed =
- QApplication::keyboardModifiers() & Qt::ControlModifier;
-
- // Clear selection if control is not pressed and this item is unselected
- if ((!_mouse_down_item || !_mouse_down_item->selected()) &&
- !ctrl_pressed)
- for (shared_ptr<RowItem> r : _view)
- r->select(false);
-
- // Set the signal selection state if the item has been clicked
- if (_mouse_down_item) {
- if (ctrl_pressed)
- _mouse_down_item->select(!_mouse_down_item->selected());
- else
- _mouse_down_item->select(true);
- }
-
- // Save the offsets of any signals which will be dragged
- for (const shared_ptr<RowItem> r : _view)
- if (r->selected())
- r->drag();
-
- selection_changed();
- update();
-}
-
-void Header::mousePressEvent(QMouseEvent *event)
-{
- assert(event);
-
- _mouse_down_point = event->pos();
- _mouse_down_item = get_mouse_over_row_item(event->pos());
-
- if (event->button() & Qt::LeftButton)
- mouseLeftPressEvent(event);
-}
-
-void Header::mouseLeftReleaseEvent(QMouseEvent *event)
-{
- assert(event);
-
- const bool ctrl_pressed =
- QApplication::keyboardModifiers() & Qt::ControlModifier;
-
- // Unselect everything if control is not pressed
- const shared_ptr<RowItem> mouse_over =
- get_mouse_over_row_item(event->pos());
-
- for (auto &r : _view)
- r->drag_release();
-
- if (!_dragging)
- {
- if (!ctrl_pressed) {
- for (shared_ptr<RowItem> r : _view)
- if (_mouse_down_item != r)
- r->select(false);
-
- if (_mouse_down_item)
- show_popup(_mouse_down_item);
- }
- }
-
- _dragging = false;
-}
-
-void Header::mouseReleaseEvent(QMouseEvent *event)
-{
- assert(event);
- if (event->button() & Qt::LeftButton)
- mouseLeftReleaseEvent(event);
-
- _mouse_down_item = nullptr;
-}
-
-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;
-
- // Check all the drag items share a common owner
- RowItemOwner *item_owner = nullptr;
- for (shared_ptr<RowItem> r : _view)
- if (r->dragging()) {
- if (!item_owner)
- item_owner = r->owner();
- else if(item_owner != r->owner())
- return;
- }
-
- if (!item_owner)
- return;
-
- // Do the drag
- _dragging = true;
-
- const int delta = event->pos().y() - _mouse_down_point.y();
-
- for (std::shared_ptr<RowItem> r : _view)
- if (r->dragging()) {
- r->force_to_v_offset(r->drag_point().y() + delta);
-
- // Ensure the trace is selected
- r->select();
- }
-
- signals_moved();
-
- update();
-}
-
-void Header::leaveEvent(QEvent*)
-{
- _mouse_point = QPoint(-1, -1);
- update();
-}
-
-void Header::contextMenuEvent(QContextMenuEvent *event)
-{
- const shared_ptr<RowItem> r = get_mouse_over_row_item(_mouse_point);
- if (!r)
- return;
-
- QMenu *const menu = r->create_context_menu(this);
- if (!menu)
- return;
-
- menu->exec(event->globalPos());
-}
-
-void Header::keyPressEvent(QKeyEvent *e)
-{
- assert(e);
-
- switch (e->key())
- {
- case Qt::Key_Delete:
- {
- for (const shared_ptr<RowItem> r : _view)
- if (r->selected())
- r->delete_pressed();
- break;
- }
- }
-}
-
-void Header::on_signals_moved()
-{
- update();
-}
-
-} // namespace view
-} // namespace pv
projects / pulseview.git / blobdiff