+++ /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.hpp"
-#include "view.hpp"
-
-#include "signal.hpp"
-#include "tracegroup.hpp"
-
-#include <cassert>
-#include <algorithm>
-
-#include <boost/iterator/filter_iterator.hpp>
-
-#include <QApplication>
-#include <QMenu>
-#include <QMouseEvent>
-#include <QPainter>
-#include <QRect>
-
-#include <pv/session.hpp>
-#include <pv/widgets/popup.hpp>
-
-using boost::make_filter_iterator;
-using std::dynamic_pointer_cast;
-using std::max;
-using std::make_pair;
-using std::min;
-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;
-
-static bool item_selected(shared_ptr<RowItem> r)
-{
- return r->selected();
-}
-
-Header::Header(View &parent) :
- MarginWidget(parent)
-{
- 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(QRect()));
- return QSize(max_rect.width() + Padding + BaselineOffset, 0);
-}
-
-QSize Header::extended_size_hint() const
-{
- return sizeHint() + QSize(ViewItem::HighlightRadius, 0);
-}
-
-vector< shared_ptr<ViewItem> > Header::items()
-{
- return vector< shared_ptr<ViewItem> >(view_.begin(), view_.end());
-}
-
-shared_ptr<ViewItem> Header::get_mouse_over_item(const QPoint &pt)
-{
- const QRect r(0, 0, width() - BaselineOffset, height());
- for (auto &i : view_)
- if (i->enabled() && i->label_rect(r).contains(pt))
- return i;
- return shared_ptr<RowItem>();
-}
-
-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 QRect rect(0, 0, width() - BaselineOffset, height());
-
- 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(rect).contains(mouse_point_);
- r->paint_label(painter, rect, highlight);
- }
-
- painter.end();
-}
-
-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<ViewItem> mouse_over =
- get_mouse_over_item(event->pos());
-
- for (auto &r : view_)
- r->drag_release();
-
- if (dragging_)
- view_.restack_all_row_items();
- else
- {
- 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 QPoint delta = event->pos() - mouse_down_point_;
-
- for (std::shared_ptr<RowItem> r : view_)
- if (r->dragging()) {
- r->drag_by(delta);
-
- // Ensure the trace is selected
- r->select();
- }
-
- item_owner->restack_items();
- for (const auto &r : *item_owner)
- r->animate_to_layout_v_offset();
- signals_moved();
-
- update();
-}
-
-void Header::contextMenuEvent(QContextMenuEvent *event)
-{
- const shared_ptr<ViewItem> r = get_mouse_over_item(mouse_point_);
- if (!r)
- return;
-
- QMenu *menu = r->create_context_menu(this);
- if (!menu)
- menu = new QMenu(this);
-
- if (std::count_if(view_.begin(), view_.end(), item_selected) > 1)
- {
- menu->addSeparator();
-
- QAction *const group = new QAction(tr("Group"), this);
- QList<QKeySequence> shortcuts;
- shortcuts.append(QKeySequence(Qt::ControlModifier | Qt::Key_G));
- group->setShortcuts(shortcuts);
- connect(group, SIGNAL(triggered()), this, SLOT(on_group()));
- menu->addAction(group);
- }
-
- menu->exec(event->globalPos());
-}
-
-void Header::keyPressEvent(QKeyEvent *e)
-{
- assert(e);
-
- MarginWidget::keyPressEvent(e);
-
- if (e->key() == Qt::Key_G && e->modifiers() == Qt::ControlModifier)
- on_group();
- else if (e->key() == Qt::Key_U && e->modifiers() == Qt::ControlModifier)
- on_ungroup();
-}
-
-void Header::on_signals_moved()
-{
- update();
-}
-
-void Header::on_group()
-{
- vector< shared_ptr<RowItem> > selected_items(
- make_filter_iterator(item_selected, view_.begin(), view_.end()),
- make_filter_iterator(item_selected, view_.end(), view_.end()));
- stable_sort(selected_items.begin(), selected_items.end(),
- [](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
- return a->visual_v_offset() < b->visual_v_offset(); });
-
- shared_ptr<TraceGroup> group(new TraceGroup());
- shared_ptr<RowItem> mouse_down_item(
- std::dynamic_pointer_cast<RowItem>(mouse_down_item_));
- shared_ptr<RowItem> focus_item(
- mouse_down_item ? mouse_down_item : selected_items.front());
-
- assert(focus_item);
- assert(focus_item->owner());
- focus_item->owner()->add_child_item(group);
-
- // Set the group v_offset here before reparenting
- group->force_to_v_offset(focus_item->layout_v_offset() +
- focus_item->v_extents().first);
-
- for (size_t i = 0; i < selected_items.size(); i++) {
- const shared_ptr<RowItem> &r = selected_items[i];
- assert(r->owner());
- r->owner()->remove_child_item(r);
- group->add_child_item(r);
-
- // Put the items at 1-pixel offsets, so that restack will
- // stack them in the right order
- r->set_layout_v_offset(i);
- }
-}
-
-void Header::on_ungroup()
-{
- bool restart;
- do {
- restart = false;
- for (const shared_ptr<RowItem> r : view_) {
- const shared_ptr<TraceGroup> tg =
- dynamic_pointer_cast<TraceGroup>(r);
- if (tg && tg->selected()) {
- tg->ungroup();
- restart = true;
- break;
- }
- }
- } while(restart);
-}
-
-} // namespace view
-} // namespace pv
projects / pulseview.git / blobdiff