]> sigrok.org Git - pulseview.git/blobdiff - pv/view/header.cpp
Session: Fix issue #67 by improving error handling
[pulseview.git] / pv / view / header.cpp
diff --git a/pv/view/header.cpp b/pv/view/header.cpp
deleted file mode 100644 (file)
index ffdf79a..0000000
+++ /dev/null
@@ -1,292 +0,0 @@
-/*
- * 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