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LibrePilot/ground/openpilotgcs/src/plugins/config/outputchannelform.cpp

327 lines
10 KiB
C++

/**
******************************************************************************
*
* @file outputchannelform.cpp
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2011.
* @addtogroup GCSPlugins GCS Plugins
* @{
* @addtogroup ConfigPlugin Config Plugin
* @{
* @brief Servo output configuration form for the config output gadget
*****************************************************************************/
/*
* 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 3 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.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "outputchannelform.h"
#include "configoutputwidget.h"
OutputChannelForm::OutputChannelForm(const int index, QWidget *parent, const bool showLegend) :
ConfigTaskWidget(parent),
ui(),
m_index(index),
m_inChannelTest(false)
{
ui.setupUi(this);
if (!showLegend) {
// Remove legend
QGridLayout *grid_layout = dynamic_cast<QGridLayout *>(layout());
Q_ASSERT(grid_layout);
for (int col = 0; col < grid_layout->columnCount(); col++) { // remove every item in first row
QLayoutItem *item = grid_layout->itemAtPosition(0, col);
if (!item) {
continue;
}
// get widget from layout item
QWidget *legend_widget = item->widget();
if (!legend_widget) {
continue;
}
// delete widget
grid_layout->removeWidget(legend_widget);
delete legend_widget;
}
}
// The convention for OP is Channel 1 to Channel 10.
ui.actuatorNumber->setText(QString("%1:").arg(m_index + 1));
// Register for ActuatorSettings changes:
connect(ui.actuatorMin, SIGNAL(editingFinished()),
this, SLOT(setChannelRange()));
connect(ui.actuatorMax, SIGNAL(editingFinished()),
this, SLOT(setChannelRange()));
connect(ui.actuatorRev, SIGNAL(toggled(bool)),
this, SLOT(reverseChannel(bool)));
// Now connect the channel out sliders to our signal to send updates in test mode
connect(ui.actuatorNeutral, SIGNAL(valueChanged(int)),
this, SLOT(sendChannelTest(int)));
ui.actuatorLink->setChecked(false);
connect(ui.actuatorLink, SIGNAL(toggled(bool)),
this, SLOT(linkToggled(bool)));
disableMouseWheelEvents();
}
OutputChannelForm::~OutputChannelForm()
{
// Do nothing
}
/**
* Restrict UI to protect users from accidental misuse.
*/
void OutputChannelForm::enableChannelTest(bool state)
{
if (m_inChannelTest == state) {
return;
}
m_inChannelTest = state;
if (m_inChannelTest) {
// Prevent stupid users from touching the minimum & maximum ranges while
// moving the sliders. Thanks Ivan for the tip :)
ui.actuatorMin->setEnabled(false);
ui.actuatorMax->setEnabled(false);
ui.actuatorRev->setEnabled(false);
} else {
ui.actuatorMin->setEnabled(true);
ui.actuatorMax->setEnabled(true);
ui.actuatorRev->setEnabled(true);
}
}
/**
* Toggles the channel linked state for use in testing mode
*/
void OutputChannelForm::linkToggled(bool state)
{
Q_UNUSED(state)
if (!m_inChannelTest) {
return; // we are not in Test Output mode
}
// find the minimum slider value for the linked ones
if (!parent()) {
return;
}
int min = 10000;
int linked_count = 0;
QList<OutputChannelForm *> outputChannelForms = parent()->findChildren<OutputChannelForm *>();
// set the linked channels of the parent widget to the same value
foreach(OutputChannelForm * outputChannelForm, outputChannelForms) {
if (!outputChannelForm->ui.actuatorLink->checkState()) {
continue;
}
if (this == outputChannelForm) {
continue;
}
int value = outputChannelForm->ui.actuatorNeutral->value();
if (min > value) {
min = value;
}
linked_count++;
}
if (linked_count <= 0) {
return; // no linked channels
}
// set the linked channels to the same value
foreach(OutputChannelForm * outputChannelForm, outputChannelForms) {
if (!outputChannelForm->ui.actuatorLink->checkState()) {
continue;
}
outputChannelForm->ui.actuatorNeutral->setValue(min);
}
}
/**
* Set maximal channel value.
*/
void OutputChannelForm::max(int maximum)
{
minmax(ui.actuatorMin->value(), maximum);
}
/**
* Set minimal channel value.
*/
void OutputChannelForm::min(int minimum)
{
minmax(minimum, ui.actuatorMax->value());
}
/**
* Set minimal and maximal channel value.
*/
void OutputChannelForm::minmax(int minimum, int maximum)
{
ui.actuatorMin->setValue(minimum);
ui.actuatorMax->setValue(maximum);
setChannelRange();
if (ui.actuatorMin->value() > ui.actuatorMax->value()) {
ui.actuatorRev->setChecked(true);
} else {
ui.actuatorRev->setChecked(false);
}
}
/**
* Set neutral of channel.
*/
void OutputChannelForm::neutral(int value)
{
ui.actuatorNeutral->setValue(value);
}
/**
* Set the channel assignment label.
*/
void OutputChannelForm::setAssignment(const QString &assignment)
{
ui.actuatorName->setText(assignment);
QFontMetrics metrics(ui.actuatorName->font());
int width = metrics.width(assignment) + 1;
foreach(OutputChannelForm * form, parent()->findChildren<OutputChannelForm *>()) {
if (form == this) {
continue;
}
if (form->ui.actuatorName->minimumSize().width() < width) {
form->ui.actuatorName->setMinimumSize(width, 0);
} else {
width = form->ui.actuatorName->minimumSize().width();
}
}
ui.actuatorName->setMinimumSize(width, 0);
}
/**
* Sets the minimum/maximum value of the channel output sliders.
* Have to do it here because setMinimum is not a slot.
*
* One added trick: if the slider is at its min when the value
* is changed, then keep it on the min.
*/
void OutputChannelForm::setChannelRange()
{
int oldMini = ui.actuatorNeutral->minimum();
// int oldMaxi = ui.actuatorNeutral->maximum();
if (ui.actuatorMin->value() < ui.actuatorMax->value()) {
ui.actuatorNeutral->setRange(ui.actuatorMin->value(), ui.actuatorMax->value());
ui.actuatorRev->setChecked(false);
} else {
ui.actuatorNeutral->setRange(ui.actuatorMax->value(), ui.actuatorMin->value());
ui.actuatorRev->setChecked(true);
}
if (ui.actuatorNeutral->value() == oldMini) {
ui.actuatorNeutral->setValue(ui.actuatorNeutral->minimum());
}
// if (ui.actuatorNeutral->value() == oldMaxi)
// ui.actuatorNeutral->setValue(ui.actuatorNeutral->maximum()); // this can be dangerous if it happens to be controlling a motor at the time!
}
/**
* Reverses the channel when the checkbox is clicked
*/
void OutputChannelForm::reverseChannel(bool state)
{
// Sanity check: if state became true, make sure the Maxvalue was higher than Minvalue
// the situations below can happen!
if (state && (ui.actuatorMax->value() < ui.actuatorMin->value())) {
return;
}
if (!state && (ui.actuatorMax->value() > ui.actuatorMin->value())) {
return;
}
// Now, swap the min & max values (only on the spinboxes, the slider
// does not change!
int temp = ui.actuatorMax->value();
ui.actuatorMax->setValue(ui.actuatorMin->value());
ui.actuatorMin->setValue(temp);
// Also update the channel value
// This is a trick to force the slider to update its value and
// emit the right signal itself, because our sendChannelTest(int) method
// relies on the object sender's identity.
if (ui.actuatorNeutral->value() < ui.actuatorNeutral->maximum()) {
ui.actuatorNeutral->setValue(ui.actuatorNeutral->value() + 1);
ui.actuatorNeutral->setValue(ui.actuatorNeutral->value() - 1);
} else {
ui.actuatorNeutral->setValue(ui.actuatorNeutral->value() - 1);
ui.actuatorNeutral->setValue(ui.actuatorNeutral->value() + 1);
}
}
/**
* Emits the channel value which will be send to the UAV to move the servo.
* Returns immediately if we are not in testing mode.
*/
void OutputChannelForm::sendChannelTest(int value)
{
int in_value = value;
QSlider *ob = (QSlider *)QObject::sender();
if (!ob) {
return;
}
if (ui.actuatorRev->isChecked()) {
value = ui.actuatorMin->value() - value + ui.actuatorMax->value(); // the channel is reversed
}
// update the label
ui.actuatorValue->setText(QString::number(value));
if (ui.actuatorLink->checkState() && parent()) { // the channel is linked to other channels
QList<OutputChannelForm *> outputChannelForms = parent()->findChildren<OutputChannelForm *>();
// set the linked channels of the parent widget to the same value
foreach(OutputChannelForm * outputChannelForm, outputChannelForms) {
if (this == outputChannelForm) {
continue;
}
if (!outputChannelForm->ui.actuatorLink->checkState()) {
continue;
}
int val = in_value;
if (val < outputChannelForm->ui.actuatorNeutral->minimum()) {
val = outputChannelForm->ui.actuatorNeutral->minimum();
}
if (val > outputChannelForm->ui.actuatorNeutral->maximum()) {
val = outputChannelForm->ui.actuatorNeutral->maximum();
}
if (outputChannelForm->ui.actuatorNeutral->value() == val) {
continue;
}
outputChannelForm->ui.actuatorNeutral->setValue(val);
outputChannelForm->ui.actuatorValue->setText(QString::number(val));
}
}
if (!m_inChannelTest) {
return; // we are not in Test Output mode
}
emit channelChanged(index(), value);
}