mirror of git://sigrok.org/pulseview
162 lines
3.9 KiB
C++
162 lines
3.9 KiB
C++
/*
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* This file is part of the PulseView project.
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*
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* Copyright (C) 2015 Joel Holdsworth <joel@airwebreathe.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <cassert>
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#include <QTimer>
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#include <QToolTip>
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#include <libsigrokcxx/libsigrokcxx.hpp>
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#include <pv/devicemanager.hpp>
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#include <pv/devices/device.hpp>
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#include "devicetoolbutton.hpp"
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using std::list;
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using std::shared_ptr;
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using std::string;
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using std::weak_ptr;
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using std::vector;
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using pv::devices::Device;
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namespace pv {
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namespace widgets {
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DeviceToolButton::DeviceToolButton(QWidget *parent,
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DeviceManager &device_manager,
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QAction *connect_action) :
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QToolButton(parent),
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device_manager_(device_manager),
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connect_action_(connect_action),
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menu_(this),
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mapper_(this),
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devices_()
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{
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setPopupMode(QToolButton::MenuButtonPopup);
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setMenu(&menu_);
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setDefaultAction(connect_action_);
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setMinimumWidth(QFontMetrics(font()).averageCharWidth() * 24);
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connect(&mapper_, SIGNAL(mapped(QObject*)),
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this, SLOT(on_action(QObject*)));
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connect(&menu_, SIGNAL(hovered(QAction*)),
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this, SLOT(on_menu_hovered(QAction*)));
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}
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shared_ptr<Device> DeviceToolButton::selected_device()
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{
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return selected_device_;
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}
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void DeviceToolButton::set_device_list(
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const list< shared_ptr<Device> > &devices, shared_ptr<Device> selected)
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{
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selected_device_ = selected;
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setText(selected ? QString::fromStdString(
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selected->display_name(device_manager_)) : tr("<No Device>"));
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devices_ = vector< weak_ptr<Device> >(devices.begin(), devices.end());
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update_device_list();
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}
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void DeviceToolButton::reset()
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{
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setText(tr("<No Device>"));
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selected_device_.reset();
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update_device_list();
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}
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void DeviceToolButton::update_device_list()
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{
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menu_.clear();
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menu_.addAction(connect_action_);
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menu_.setDefaultAction(connect_action_);
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menu_.addSeparator();
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for (weak_ptr<Device> dev_weak_ptr : devices_) {
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shared_ptr<Device> dev(dev_weak_ptr.lock());
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if (!dev)
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continue;
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QAction *const a = new QAction(QString::fromStdString(
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dev->display_name(device_manager_)), this);
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a->setCheckable(true);
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a->setChecked(selected_device_ == dev);
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a->setData(qVariantFromValue((void*)dev.get()));
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a->setToolTip(QString::fromStdString(dev->full_name()));
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mapper_.setMapping(a, a);
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connect(a, SIGNAL(triggered()), &mapper_, SLOT(map()));
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menu_.addAction(a);
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}
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}
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void DeviceToolButton::on_action(QObject *action)
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{
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assert(action);
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selected_device_.reset();
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Device *const dev = (Device*)((QAction*)action)->data().value<void*>();
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for (weak_ptr<Device> dev_weak_ptr : devices_) {
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shared_ptr<Device> dev_ptr(dev_weak_ptr);
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if (dev_ptr.get() == dev) {
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selected_device_ = shared_ptr<Device>(dev_ptr);
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break;
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}
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}
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update_device_list();
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setText(QString::fromStdString(
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selected_device_->display_name(device_manager_)));
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device_selected();
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}
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void DeviceToolButton::on_menu_hovered(QAction *action)
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{
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assert(action);
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// Only show the tooltip for device entries (they hold
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// device pointers in their data field)
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if (!action->data().isValid())
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return;
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device_tooltip_ = action->toolTip();
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if (QToolTip::isVisible())
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on_menu_hover_timeout();
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else
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QTimer::singleShot(1000, this, SLOT(on_menu_hover_timeout()));
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}
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void DeviceToolButton::on_menu_hover_timeout()
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{
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if (device_tooltip_.isEmpty())
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return;
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QToolTip::showText(QCursor::pos(), device_tooltip_);
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}
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} // namespace widgets
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} // namespace pv
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