File indexing completed on 2024-05-19 04:36:36

 /* This file is part of the TikZKit project.
  *
  * Copyright (C) 2014 Dominik Haumann <dhaumann@kde.org>
  *
  * This library is free software; you can redistribute it and/or modify
  * it under the terms of the GNU Library General Public License as published
  * by the Free Software Foundation, either version 2 of the License, or
  * (at your option) any later version.
  *
  * This library 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 Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, see
  * <http://www.gnu.org/licenses/>.
  */
 
 #include "ValueSpinBox.h"
 
 namespace tikz {
 namespace ui {
 
 class ValueSpinBoxPrivate
 {
 public:
     tikz::Unit unit = tikz::Unit::Millimeter;
 };
 
 ValueSpinBox::ValueSpinBox(QWidget * parent)
     : QDoubleSpinBox(parent)
     , d(new ValueSpinBoxPrivate())
 {
     setFrame(false);
     connect(this, SIGNAL(valueChanged(double)), this, SLOT(slotValueChanged(double)));
 }
 
 ValueSpinBox::~ValueSpinBox()
 {
     delete d;
 }
 
 void ValueSpinBox::setUnit(tikz::Unit unit)
 {
     if (d->unit != unit) {
         d->unit = unit;
     }
 }
 
 tikz::Value ValueSpinBox::valueWithUnit() const
 {
     return tikz::Value(value(), d->unit);
 }
 
 void ValueSpinBox::setValueWithUnit(const tikz::Value & val)
 {
     const bool unitChange = d->unit != val.unit();
     if (unitChange) {
         setUnit(val.unit());
     }
 
     if (unitChange || value() != val.value()) {
         setValue(val.value());
     }
 }
 
 void ValueSpinBox::slotValueChanged(double value)
 {
     Q_EMIT valueChanged(tikz::Value(value, d->unit));
 }
 
 QString ValueSpinBox::textFromValue(double value) const
 {
     return tikz::Value(value, d->unit).toString();
 }
 
 double ValueSpinBox::valueFromText(const QString &text) const
 {
     QString str = text;
 
     static QRegularExpression re("(pt?|mm?|cm?|in?)");
     QRegularExpressionMatch match = re.match(str);
 
     // append unit to avoid fallback to pt in Value::fromString()
     if (! match.hasMatch()) {
         switch (d->unit) {
             case tikz::Unit::Point: break;
             case tikz::Unit::Millimeter: str += "mm"; break;
             case tikz::Unit::Centimeter: str += "cm"; break;
             case tikz::Unit::Inch: str += "in"; break;
             default: Q_ASSERT(false);
         }
     }
 
     // convert to value
     tikz::Value val = tikz::Value::fromString(str);
     const bool unitChanged = d->unit != val.unit();
     const_cast<ValueSpinBox*>(this)->setUnit(val.unit());
 
     // in case the number remains unchanged but the unit changed, manually emit
     // the signal, since QDoubleSpinBox does not do this.
     if (val.value() == value() && unitChanged) {
         const_cast<ValueSpinBox*>(this)->slotValueChanged(val.value());
     }
 
     return val.value();
 }
 
 void ValueSpinBox::fixup(QString & input) const
 {
     QDoubleSpinBox::fixup(input);
 }
 
 QValidator::State ValueSpinBox::validate(QString & text, int & pos) const
 {
     static QRegularExpression re("([a-zA-Z]+)");
 
     QRegularExpressionMatch match = re.match(text);
     if (match.hasMatch()) {
         const QString unit = match.captured(1);
         if (unit == "p" ||
             unit == "m" ||
             unit == "c" ||
             unit == "i")
         {
             return QValidator::Intermediate;
         }
 
         if (unit == "pt" ||
             unit == "mm" ||
             unit == "cm" ||
             unit == "in")
         {
             pos = match.capturedStart(1);
             QString str = text.left(pos);
             return QDoubleSpinBox::validate(str, pos);
         }
     }
 
     return QDoubleSpinBox::validate(text, pos);
 }
 
 }
 }
 
 // kate: indent-width 4; replace-tabs on;