plugin: [skip ci] make QuantitySpinBox inside plugin functioning

This commit is contained in:
wmayer
2020-08-08 20:04:45 +02:00
parent 8db4149c88
commit 47d4db552a
2 changed files with 923 additions and 72 deletions

View File

@@ -30,6 +30,8 @@
#include <QMessageBox>
#include <QStyleOptionButton>
#include <QStylePainter>
#include <QToolTip>
#include <cfloat>
#include "customwidgets.h"
@@ -523,79 +525,587 @@ void InputField::setHistorySize(int i)
// --------------------------------------------------------------------
QuantitySpinBox::QuantitySpinBox (QWidget * parent)
: QAbstractSpinBox(parent),
Value(0),
Maximum(INT_MAX),
Minimum(-INT_MAX),
StepSize(1.0)
namespace Base {
Unit::Unit()
{
}
Unit::Unit(const QString& u)
: unit(u)
{
}
bool Unit::isEmpty() const
{
return unit.isEmpty();
}
bool Unit::operator ==(const Unit& that)
{
return this->unit == that.unit;
}
bool Unit::operator !=(const Unit& that)
{
return this->unit != that.unit;
}
const QString& Unit::getString() const
{
return unit;
}
int QuantityFormat::defaultDenominator = 8; // for 1/8"
QuantityFormat::QuantityFormat()
: option(OmitGroupSeparator | RejectGroupSeparator)
, format(Fixed)
, precision(4)
, denominator(defaultDenominator)
{
}
Quantity::Quantity()
: value(0)
, unit()
{
}
Quantity::Quantity(double v, const Unit& u)
: value(v)
, unit(u)
{
}
Quantity Quantity::parse(const QString& str)
{
bool ok;
QString txt = str;
QString unit;
while (!txt.isEmpty() && txt[txt.length()-1].isLetter()) {
unit.prepend(txt[txt.length()-1]);
txt.chop(1);
}
double v = QLocale::system().toDouble(txt, &ok);
//if (!ok)
// throw QString("Cannot convert to double");
return Quantity(v, Unit(unit));
}
void Quantity::setValue(double v)
{
value = v;
}
double Quantity::getValue() const
{
return value;
}
void Quantity::setUnit(const Unit& u)
{
unit = u;
}
Unit Quantity::getUnit() const
{
return unit;
}
QString Quantity::getUserString() const
{
QLocale Lc;
const QuantityFormat& format = getFormat();
if (format.option != QuantityFormat::None) {
uint opt = static_cast<uint>(format.option);
Lc.setNumberOptions(static_cast<QLocale::NumberOptions>(opt));
}
QString Ln = Lc.toString(value, format.toFormat(), format.precision);
return QString::fromUtf8("%1 %2").arg(Ln, unit.getString());
}
QString Quantity::getUserString(double& factor, QString& unitString) const
{
factor = 1;
unitString = unit.getString();
QLocale Lc;
const QuantityFormat& format = getFormat();
if (format.option != QuantityFormat::None) {
uint opt = static_cast<uint>(format.option);
Lc.setNumberOptions(static_cast<QLocale::NumberOptions>(opt));
}
QString Ln = Lc.toString(value, format.toFormat(), format.precision);
return QString::fromUtf8("%1 %2").arg(Ln, unit.getString());
}
}
namespace Gui {
class QuantitySpinBoxPrivate
{
public:
QuantitySpinBoxPrivate() :
validInput(true),
pendingEmit(false),
unitValue(0),
maximum(INT_MAX),
minimum(-INT_MAX),
singleStep(1.0)
{
}
~QuantitySpinBoxPrivate()
{
}
QString stripped(const QString &t, int *pos) const
{
QString text = t;
const int s = text.size();
text = text.trimmed();
if (pos)
(*pos) -= (s - text.size());
return text;
}
bool validate(QString& input, Base::Quantity& result) const
{
bool success = false;
QString tmp = input;
int pos = 0;
QValidator::State state;
Base::Quantity res = validateAndInterpret(tmp, pos, state);
res.setFormat(quantity.getFormat());
if (state == QValidator::Acceptable) {
success = true;
result = res;
input = tmp;
}
else if (state == QValidator::Intermediate) {
tmp = tmp.trimmed();
tmp += QLatin1Char(' ');
tmp += unitStr;
Base::Quantity res2 = validateAndInterpret(tmp, pos, state);
res2.setFormat(quantity.getFormat());
if (state == QValidator::Acceptable) {
success = true;
result = res2;
input = tmp;
}
}
return success;
}
Base::Quantity validateAndInterpret(QString& input, int& pos, QValidator::State& state) const
{
Base::Quantity res;
const double max = this->maximum;
const double min = this->minimum;
QString copy = input;
int len = copy.size();
const bool plus = max >= 0;
const bool minus = min <= 0;
switch (len) {
case 0:
state = max != min ? QValidator::Intermediate : QValidator::Invalid;
goto end;
case 1:
if (copy.at(0) == locale.decimalPoint()) {
state = QValidator::Intermediate;
copy.prepend(QLatin1Char('0'));
pos++;
len++;
goto end;
}
else if (copy.at(0) == QLatin1Char('+')) {
// the quantity parser doesn't allow numbers of the form '+1.0'
state = QValidator::Invalid;
goto end;
}
else if (copy.at(0) == QLatin1Char('-')) {
if (minus)
state = QValidator::Intermediate;
else
state = QValidator::Invalid;
goto end;
}
break;
case 2:
if (copy.at(1) == locale.decimalPoint()
&& (plus && copy.at(0) == QLatin1Char('+'))) {
state = QValidator::Intermediate;
goto end;
}
if (copy.at(1) == locale.decimalPoint()
&& (minus && copy.at(0) == QLatin1Char('-'))) {
state = QValidator::Intermediate;
copy.insert(1, QLatin1Char('0'));
pos++;
len++;
goto end;
}
break;
default: break;
}
{
if (copy.at(0) == locale.groupSeparator()) {
state = QValidator::Invalid;
goto end;
}
else if (len > 1) {
bool decOccurred = false;
for (int i = 0; i<copy.size(); i++) {
if (copy.at(i) == locale.decimalPoint()) {
// Disallow multiple decimal points within the same numeric substring
if (decOccurred) {
state = QValidator::Invalid;
goto end;
}
decOccurred = true;
}
// Reset decOcurred if non-numeric character found
else if (!(copy.at(i) == locale.groupSeparator() || copy.at(i).isDigit())) {
decOccurred = false;
}
}
}
bool ok = false;
double value = min;
if (locale.negativeSign() != QLatin1Char('-'))
copy.replace(locale.negativeSign(), QLatin1Char('-'));
if (locale.positiveSign() != QLatin1Char('+'))
copy.replace(locale.positiveSign(), QLatin1Char('+'));
try {
QString copy2 = copy;
copy2.remove(locale.groupSeparator());
res = Base::Quantity::parse(copy2);
value = res.getValue();
ok = true;
}
catch (...) {
}
if (!ok) {
// input may not be finished
state = QValidator::Intermediate;
}
else if (value >= min && value <= max) {
if (copy.endsWith(locale.decimalPoint())) {
// input shouldn't end with a decimal point
state = QValidator::Intermediate;
}
else if (res.getUnit().isEmpty() && !this->unit.isEmpty()) {
// if not dimensionless the input should have a dimension
state = QValidator::Intermediate;
}
else if (res.getUnit() != this->unit) {
state = QValidator::Invalid;
}
else {
state = QValidator::Acceptable;
}
}
else if (max == min) { // when max and min is the same the only non-Invalid input is max (or min)
state = QValidator::Invalid;
}
else {
if ((value >= 0 && value > max) || (value < 0 && value < min)) {
state = QValidator::Invalid;
}
else {
state = QValidator::Intermediate;
}
}
}
end:
if (state != QValidator::Acceptable) {
res.setValue(max > 0 ? min : max);
}
input = copy;
return res;
}
QLocale locale;
bool validInput;
bool pendingEmit;
QString validStr;
Base::Quantity quantity;
Base::Quantity cached;
Base::Unit unit;
double unitValue;
QString unitStr;
double maximum;
double minimum;
double singleStep;
};
}
QuantitySpinBox::QuantitySpinBox(QWidget *parent)
: QAbstractSpinBox(parent),
d_ptr(new QuantitySpinBoxPrivate())
{
d_ptr->locale = locale();
this->setContextMenuPolicy(Qt::DefaultContextMenu);
QObject::connect(lineEdit(), SIGNAL(textChanged(QString)),
this, SLOT(userInput(QString)));
QObject::connect(this, SIGNAL(editingFinished()),
this, SLOT(handlePendingEmit()));
}
QuantitySpinBox::~QuantitySpinBox()
{
}
/// sets the field with a quantity
void QuantitySpinBox::setValue(double quant)
void QuantitySpinBox::resizeEvent(QResizeEvent * event)
{
Value = quant;
lineEdit()->setText(QString("%1 %2").arg(Value).arg(UnitStr));
QAbstractSpinBox::resizeEvent(event);
}
/// sets the field with a quantity
double QuantitySpinBox::value() const
void Gui::QuantitySpinBox::keyPressEvent(QKeyEvent *event)
{
return Value;
QAbstractSpinBox::keyPressEvent(event);
}
/// get the value of the singleStep property
double QuantitySpinBox::singleStep(void)const
void QuantitySpinBox::updateText(const Base::Quantity &quant)
{
return StepSize;
Q_D(QuantitySpinBox);
double dFactor;
QString txt = getUserString(quant, dFactor, d->unitStr);
d->unitValue = quant.getValue()/dFactor;
lineEdit()->setText(txt);
handlePendingEmit();
}
/// set the value of the singleStep property
void QuantitySpinBox::setSingleStep(double s)
Base::Quantity QuantitySpinBox::value() const
{
StepSize = s;
Q_D(const QuantitySpinBox);
return d->quantity;
}
/// get the value of the maximum property
double QuantitySpinBox::maximum(void)const
double QuantitySpinBox::rawValue() const
{
return Maximum;
Q_D(const QuantitySpinBox);
return d->quantity.getValue();
}
/// set the value of the maximum property
void QuantitySpinBox::setMaximum(double m)
void QuantitySpinBox::setValue(const Base::Quantity& value)
{
Maximum = m;
Q_D(QuantitySpinBox);
d->quantity = value;
// check limits
if (d->quantity.getValue() > d->maximum)
d->quantity.setValue(d->maximum);
if (d->quantity.getValue() < d->minimum)
d->quantity.setValue(d->minimum);
d->unit = value.getUnit();
updateText(value);
}
/// get the value of the minimum property
double QuantitySpinBox::minimum(void)const
void QuantitySpinBox::setValue(double value)
{
return Minimum;
Q_D(QuantitySpinBox);
setValue(Base::Quantity(value, d->unit));
}
/// set the value of the minimum property
void QuantitySpinBox::setMinimum(double m)
bool QuantitySpinBox::hasValidInput() const
{
Minimum = m;
Q_D(const QuantitySpinBox);
return d->validInput;
}
// Gets called after call of 'validateAndInterpret'
void QuantitySpinBox::userInput(const QString & text)
{
Q_D(QuantitySpinBox);
d->pendingEmit = true;
QString tmp = text;
Base::Quantity res;
if (d->validate(tmp, res)) {
d->validStr = tmp;
d->validInput = true;
}
else {
d->validInput = false;
return;
}
if (keyboardTracking()) {
d->cached = res;
handlePendingEmit();
}
else {
d->cached = res;
}
}
void QuantitySpinBox::handlePendingEmit()
{
updateFromCache(true);
}
void QuantitySpinBox::updateFromCache(bool notify)
{
Q_D(QuantitySpinBox);
if (d->pendingEmit) {
double factor;
const Base::Quantity& res = d->cached;
getUserString(res, factor, d->unitStr);
d->unitValue = res.getValue() / factor;
d->quantity = res;
// signaling
if (notify) {
d->pendingEmit = false;
valueChanged(res);
valueChanged(res.getValue());
}
}
}
Base::Unit QuantitySpinBox::unit() const
{
Q_D(const QuantitySpinBox);
return d->unit;
}
void QuantitySpinBox::setUnit(const Base::Unit &unit)
{
Q_D(QuantitySpinBox);
d->unit = unit;
d->quantity.setUnit(unit);
updateText(d->quantity);
}
void QuantitySpinBox::setUnitText(const QString& str)
{
Base::Quantity quant = Base::Quantity::parse(str);
setUnit(quant.getUnit());
}
QString QuantitySpinBox::unitText(void)
{
Q_D(QuantitySpinBox);
return d->unitStr;
}
double QuantitySpinBox::singleStep() const
{
Q_D(const QuantitySpinBox);
return d->singleStep;
}
void QuantitySpinBox::setSingleStep(double value)
{
Q_D(QuantitySpinBox);
if (value >= 0) {
d->singleStep = value;
}
}
double QuantitySpinBox::minimum() const
{
Q_D(const QuantitySpinBox);
return d->minimum;
}
void QuantitySpinBox::setMinimum(double minimum)
{
Q_D(QuantitySpinBox);
d->minimum = minimum;
}
double QuantitySpinBox::maximum() const
{
Q_D(const QuantitySpinBox);
return d->maximum;
}
void QuantitySpinBox::setMaximum(double maximum)
{
Q_D(QuantitySpinBox);
d->maximum = maximum;
}
void QuantitySpinBox::setRange(double minimum, double maximum)
{
Q_D(QuantitySpinBox);
d->minimum = minimum;
d->maximum = maximum;
}
int QuantitySpinBox::decimals() const
{
Q_D(const QuantitySpinBox);
return d->quantity.getFormat().precision;
}
void QuantitySpinBox::setDecimals(int v)
{
Q_D(QuantitySpinBox);
Base::QuantityFormat f = d->quantity.getFormat();
f.precision = v;
d->quantity.setFormat(f);
updateText(d->quantity);
}
void QuantitySpinBox::clearSchema()
{
Q_D(QuantitySpinBox);
updateText(d->quantity);
}
QString QuantitySpinBox::getUserString(const Base::Quantity& val, double& factor, QString& unitString) const
{
Q_D(const QuantitySpinBox);
return val.getUserString(factor, unitString);
}
QString QuantitySpinBox::getUserString(const Base::Quantity& val) const
{
Q_D(const QuantitySpinBox);
return val.getUserString();
}
QAbstractSpinBox::StepEnabled QuantitySpinBox::stepEnabled() const
{
if (isReadOnly())
Q_D(const QuantitySpinBox);
if (isReadOnly()/* || !d->validInput*/)
return StepNone;
if (wrapping())
return StepEnabled(StepUpEnabled | StepDownEnabled);
StepEnabled ret = StepNone;
if (Value < Maximum) {
if (d->quantity.getValue() < d->maximum) {
ret |= StepUpEnabled;
}
if (Value > Minimum) {
if (d->quantity.getValue() > d->minimum) {
ret |= StepDownEnabled;
}
return ret;
@@ -603,26 +1113,183 @@ QAbstractSpinBox::StepEnabled QuantitySpinBox::stepEnabled() const
void QuantitySpinBox::stepBy(int steps)
{
double step = StepSize * steps;
double val = Value + step;
if (val > Maximum)
val = Maximum;
else if (val < Minimum)
val = Minimum;
Q_D(QuantitySpinBox);
updateFromCache(false);
lineEdit()->setText(QString::fromUtf8("%L1 %2").arg(val).arg(UnitStr));
double step = d->singleStep * steps;
double val = d->unitValue + step;
if (val > d->maximum)
val = d->maximum;
else if (val < d->minimum)
val = d->minimum;
lineEdit()->setText(QString::fromUtf8("%L1 %2").arg(val).arg(d->unitStr));
updateFromCache(true);
update();
selectNumber();
}
void QuantitySpinBox::setUnitText(QString str)
QSize QuantitySpinBox::sizeHint() const
{
UnitStr = str;
lineEdit()->setText(QString("%1 %2").arg(Value).arg(UnitStr));
return QAbstractSpinBox::sizeHint();
}
QString QuantitySpinBox::unitText(void)
QSize QuantitySpinBox::minimumSizeHint() const
{
return UnitStr;
return QAbstractSpinBox::minimumSizeHint();
}
void QuantitySpinBox::showEvent(QShowEvent * event)
{
Q_D(QuantitySpinBox);
QAbstractSpinBox::showEvent(event);
bool selected = lineEdit()->hasSelectedText();
updateText(d->quantity);
if (selected)
selectNumber();
}
void QuantitySpinBox::hideEvent(QHideEvent * event)
{
handlePendingEmit();
QAbstractSpinBox::hideEvent(event);
}
void QuantitySpinBox::closeEvent(QCloseEvent * event)
{
handlePendingEmit();
QAbstractSpinBox::closeEvent(event);
}
bool QuantitySpinBox::event(QEvent * event)
{
// issue #0004059: Tooltips for Gui::QuantitySpinBox not showing
// Here we must not try to show the tooltip of the icon label
// because it would override a custom tooltip set to this widget.
//
// We could also check if the text of this tooltip is empty but
// it will fail in cases where the widget is embedded into the
// property editor and the corresponding item has set a tooltip.
// Instead of showing the item's tooltip it will again show the
// tooltip of the icon label.
#if 0
if (event->type() == QEvent::ToolTip) {
if (isBound() && getExpression() && lineEdit()->isReadOnly()) {
QHelpEvent * helpEvent = static_cast<QHelpEvent*>(event);
QToolTip::showText( helpEvent->globalPos(), Base::Tools::fromStdString(getExpression()->toString()), this);
event->accept();
return true;
}
}
#endif
return QAbstractSpinBox::event(event);
}
void QuantitySpinBox::focusInEvent(QFocusEvent * event)
{
bool hasSel = lineEdit()->hasSelectedText();
QAbstractSpinBox::focusInEvent(event);
if (event->reason() == Qt::TabFocusReason ||
event->reason() == Qt::BacktabFocusReason ||
event->reason() == Qt::ShortcutFocusReason) {
if (!hasSel)
selectNumber();
}
}
void QuantitySpinBox::focusOutEvent(QFocusEvent * event)
{
Q_D(QuantitySpinBox);
int pos = 0;
QString text = lineEdit()->text();
QValidator::State state;
d->validateAndInterpret(text, pos, state);
if (state != QValidator::Acceptable) {
lineEdit()->setText(d->validStr);
}
handlePendingEmit();
QToolTip::hideText();
QAbstractSpinBox::focusOutEvent(event);
}
void QuantitySpinBox::clear()
{
QAbstractSpinBox::clear();
}
void QuantitySpinBox::selectNumber()
{
QString str = lineEdit()->text();
unsigned int i = 0;
QChar d = locale().decimalPoint();
QChar g = locale().groupSeparator();
QChar n = locale().negativeSign();
for (QString::iterator it = str.begin(); it != str.end(); ++it) {
if (it->isDigit())
i++;
else if (*it == d)
i++;
else if (*it == g)
i++;
else if (*it == n)
i++;
else // any non-number character
break;
}
lineEdit()->setSelection(0, i);
}
QString QuantitySpinBox::textFromValue(const Base::Quantity& value) const
{
double factor;
QString unitStr;
QString str = getUserString(value, factor, unitStr);
if (qAbs(value.getValue()) >= 1000.0) {
str.remove(locale().groupSeparator());
}
return str;
}
Base::Quantity QuantitySpinBox::valueFromText(const QString &text) const
{
Q_D(const QuantitySpinBox);
QString copy = text;
int pos = lineEdit()->cursorPosition();
QValidator::State state = QValidator::Acceptable;
Base::Quantity quant = d->validateAndInterpret(copy, pos, state);
if (state != QValidator::Acceptable) {
fixup(copy);
quant = d->validateAndInterpret(copy, pos, state);
}
return quant;
}
QValidator::State QuantitySpinBox::validate(QString &text, int &pos) const
{
Q_D(const QuantitySpinBox);
QValidator::State state;
d->validateAndInterpret(text, pos, state);
return state;
}
void QuantitySpinBox::fixup(QString &input) const
{
input.remove(locale().groupSeparator());
}
// ------------------------------------------------------------------------------