c422404020
* Core: workaround for Building US unit system bug Fixes #11345 This workaround should hopefully fix the Building US unit system bug at the level of the InputField code. This is the most feasible solution given that we are currently in the v1.1 feature freeze. I use the word "hopefully" because I have not compiled and tested the code. But replacing `+` with `--` works in Python examples. * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci * Fix typo in comment * [pre-commit.ci] auto fixes from pre-commit.com hooks for more information, see https://pre-commit.ci --------- Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
828 lines
23 KiB
C++
828 lines
23 KiB
C++
/***************************************************************************
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* Copyright (c) 2013 Jürgen Riegel <juergen.riegel@web.de> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include <limits>
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#include <QContextMenuEvent>
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#include <QMenu>
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#include <QPixmapCache>
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#include <QRegularExpression>
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#include <QRegularExpressionMatch>
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#include <App/Application.h>
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#include <App/DocumentObject.h>
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#include <App/ExpressionParser.h>
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#include <App/PropertyUnits.h>
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#include <Base/Exception.h>
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#include <Base/Quantity.h>
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#include "InputField.h"
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#include "BitmapFactory.h"
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#include "Command.h"
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#include "QuantitySpinBox_p.h"
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using namespace Gui;
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using namespace App;
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using namespace Base;
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// --------------------------------------------------------------------
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namespace Gui
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{
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class InputValidator: public QValidator
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{
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public:
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explicit InputValidator(InputField* parent);
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~InputValidator() override;
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void fixup(QString& input) const override;
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State validate(QString& input, int& pos) const override;
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private:
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InputField* dptr;
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};
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} // namespace Gui
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// --------------------------------------------------------------------
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InputField::InputField(QWidget* parent)
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: ExpressionLineEdit(parent)
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, ExpressionWidget()
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, validInput(true)
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, actUnitValue(0)
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, Maximum(std::numeric_limits<double>::max())
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, Minimum(-std::numeric_limits<double>::max())
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, StepSize(1.0)
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, HistorySize(5)
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, SaveSize(5)
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{
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setValidator(new InputValidator(this));
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if (!App::GetApplication()
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.GetParameterGroupByPath("User parameter:BaseApp/Preferences/General")
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->GetBool("ComboBoxWheelEventFilter", false)) {
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setFocusPolicy(Qt::WheelFocus);
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}
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else {
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setFocusPolicy(Qt::StrongFocus);
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}
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iconLabel = new ExpressionLabel(this);
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iconLabel->setCursor(Qt::ArrowCursor);
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QFontMetrics fm(font());
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int iconSize = fm.height();
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QPixmap pixmap = getValidationIcon(":/icons/button_invalid.svg", QSize(iconSize, iconSize));
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iconLabel->setPixmap(pixmap);
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iconLabel->hide();
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connect(this, &QLineEdit::textChanged, this, &InputField::updateIconLabel);
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// Set Margins
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// vertical margin, such that `,` won't be clipped to a `.` and similar font descents. Relevant
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// on some OSX versions horizontal margin, such that text will not be behind `fx` icon
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int margin = getMargin();
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setTextMargins(margin, margin, margin + iconSize, margin);
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this->setContextMenuPolicy(Qt::DefaultContextMenu);
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connect(this, &QLineEdit::textChanged, this, &InputField::newInput);
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}
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int InputField::getMargin()
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{
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#if QT_VERSION >= QT_VERSION_CHECK(6, 3, 0)
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return style()->pixelMetric(QStyle::PM_LineEditIconMargin, nullptr, this) / 2;
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#else
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return style()->pixelMetric(QStyle::PM_FocusFrameHMargin, nullptr, this);
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#endif
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}
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InputField::~InputField() = default;
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void InputField::bind(const App::ObjectIdentifier& _path)
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{
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ExpressionBinding::bind(_path);
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auto* prop = freecad_cast<PropertyQuantity*>(getPath().getProperty());
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if (prop) {
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actQuantity = Base::Quantity(prop->getValue());
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}
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DocumentObject* docObj = getPath().getDocumentObject();
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if (docObj) {
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std::shared_ptr<const Expression> expr(docObj->getExpression(getPath()).expression);
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if (expr) {
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newInput(QString::fromStdString(expr->toString()));
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}
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}
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// Create document object, to initialize completer
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setDocumentObject(docObj);
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}
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bool InputField::apply(const std::string& propName)
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{
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if (!ExpressionBinding::apply(propName)) {
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Gui::Command::doCommand(Gui::Command::Doc, "%s = %f", propName.c_str(), getQuantity().getValue());
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return true;
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}
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else {
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return false;
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}
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}
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bool InputField::apply()
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{
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return ExpressionBinding::apply();
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}
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QPixmap InputField::getValidationIcon(const char* name, const QSize& size) const
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{
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QString key
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= QStringLiteral("%1_%2x%3").arg(QString::fromLatin1(name)).arg(size.width()).arg(size.height());
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QPixmap icon;
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if (QPixmapCache::find(key, &icon)) {
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return icon;
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}
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icon = BitmapFactory().pixmapFromSvg(name, size);
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if (!icon.isNull()) {
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QPixmapCache::insert(key, icon);
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}
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return icon;
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}
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void InputField::updateText(const Base::Quantity& quant)
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{
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if (isBound()) {
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std::shared_ptr<const Expression> e(
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getPath().getDocumentObject()->getExpression(getPath()).expression
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);
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if (e) {
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setText(QString::fromStdString(e->toString()));
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return;
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}
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}
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double dFactor;
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std::string unitStr;
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std::string txt = quant.getUserString(dFactor, unitStr);
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actUnitValue = quant.getValue() / dFactor;
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setText(QString::fromStdString(txt));
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}
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void InputField::resizeEvent(QResizeEvent* /*event*/)
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{
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QSize iconSize = iconLabel->sizeHint();
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iconLabel->move(width() - (iconSize.width() + 2 * getMargin()), (height() - iconSize.height()) / 2);
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}
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void InputField::updateIconLabel(const QString& text)
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{
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iconLabel->setVisible(text.isEmpty());
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}
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void InputField::contextMenuEvent(QContextMenuEvent* event)
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{
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QMenu* editMenu = createStandardContextMenu();
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editMenu->setTitle(tr("Edit"));
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auto menu = new QMenu(QStringLiteral("InputFieldContextmenu"));
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menu->addMenu(editMenu);
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menu->addSeparator();
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// datastructure to remember actions for values
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std::vector<QString> values;
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std::vector<QAction*> actions;
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// add the history menu part...
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std::vector<QString> history = getHistory();
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for (const auto& it : history) {
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actions.push_back(menu->addAction(it));
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values.push_back(it);
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}
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// add the save value portion of the menu
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menu->addSeparator();
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QAction* SaveValueAction = menu->addAction(tr("Save Value"));
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std::vector<QString> savedValues = getSavedValues();
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for (const auto& savedValue : savedValues) {
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actions.push_back(menu->addAction(savedValue));
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values.push_back(savedValue);
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}
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// call the menu and wait until its back
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QAction* saveAction = menu->exec(event->globalPos());
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// look what the user has chosen
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if (saveAction == SaveValueAction) {
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pushToSavedValues();
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}
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else {
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int i = 0;
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for (auto it = actions.begin(); it != actions.end(); ++it, i++) {
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if (*it == saveAction) {
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this->setText(values[i]);
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}
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}
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}
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delete menu;
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}
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void InputField::newInput(const QString& text)
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{
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Quantity res;
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try {
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QString input = text;
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fixup(input);
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if (isBound()) {
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std::shared_ptr<Expression> e(
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ExpressionParser::parse(getPath().getDocumentObject(), input.toUtf8())
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);
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setExpression(e);
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std::unique_ptr<Expression> evalRes(getExpression()->eval());
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auto* value = freecad_cast<NumberExpression*>(evalRes.get());
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if (value) {
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res.setValue(value->getValue());
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res.setUnit(value->getUnit());
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}
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}
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else {
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res = Quantity::parse(input.toStdString());
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}
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}
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catch (Base::Exception& e) {
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QString errorText = QString::fromLatin1(e.what());
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if (iconLabel->isHidden()) {
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iconLabel->setVisible(true);
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}
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Q_EMIT parseError(errorText);
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validInput = false;
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return;
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}
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if (res.isDimensionless()) {
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res.setUnit(this->actUnit);
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}
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// check if unit fits!
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if (actUnit != Unit::One && !res.isDimensionless() && actUnit != res.getUnit()) {
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if (iconLabel->isHidden()) {
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iconLabel->setVisible(true);
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}
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Q_EMIT parseError(QStringLiteral("Wrong unit"));
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validInput = false;
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return;
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}
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if (iconLabel->isVisible()) {
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iconLabel->setVisible(false);
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}
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validInput = true;
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if (res.getValue() > Maximum) {
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res.setValue(Maximum);
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}
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if (res.getValue() < Minimum) {
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res.setValue(Minimum);
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}
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double dFactor;
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std::string unitStr;
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res.getUserString(dFactor, unitStr);
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actUnitValue = res.getValue() / dFactor;
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// Preserve previous format
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res.setFormat(this->actQuantity.getFormat());
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actQuantity = res;
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// signaling
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Q_EMIT valueChanged(res);
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Q_EMIT valueChanged(res.getValue());
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}
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void InputField::pushToHistory(const QString& valueq)
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{
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QString val;
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if (valueq.isEmpty()) {
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val = this->text();
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}
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else {
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val = valueq;
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}
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// check if already in:
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std::vector<QString> hist = InputField::getHistory();
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for (const auto& it : hist) {
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if (it == val) {
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return;
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}
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}
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std::string value(val.toUtf8());
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if (_handle.isValid()) {
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char hist1[21];
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char hist0[21];
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for (int i = HistorySize - 1; i >= 0; i--) {
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snprintf(hist1, 20, "Hist%i", i + 1);
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snprintf(hist0, 20, "Hist%i", i);
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std::string tHist = _handle->GetASCII(hist0, "");
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if (!tHist.empty()) {
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_handle->SetASCII(hist1, tHist.c_str());
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}
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}
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_handle->SetASCII("Hist0", value.c_str());
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}
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}
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std::vector<QString> InputField::getHistory()
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{
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std::vector<QString> res;
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if (_handle.isValid()) {
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std::string tmp;
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char hist[21];
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for (int i = 0; i < HistorySize; i++) {
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snprintf(hist, 20, "Hist%i", i);
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tmp = _handle->GetASCII(hist, "");
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if (!tmp.empty()) {
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res.push_back(QString::fromUtf8(tmp.c_str()));
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}
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else {
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break; // end of history reached
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}
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}
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}
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return res;
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}
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void InputField::setToLastUsedValue()
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{
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std::vector<QString> hist = getHistory();
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if (!hist.empty()) {
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this->setText(hist[0]);
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}
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}
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void InputField::pushToSavedValues(const QString& valueq)
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{
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std::string value;
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if (valueq.isEmpty()) {
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value = this->text().toUtf8().constData();
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}
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else {
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value = valueq.toUtf8().constData();
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}
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if (_handle.isValid()) {
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char hist1[21];
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char hist0[21];
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for (int i = SaveSize - 1; i >= 0; i--) {
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snprintf(hist1, 20, "Save%i", i + 1);
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snprintf(hist0, 20, "Save%i", i);
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std::string tHist = _handle->GetASCII(hist0, "");
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if (!tHist.empty()) {
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_handle->SetASCII(hist1, tHist.c_str());
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}
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}
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_handle->SetASCII("Save0", value.c_str());
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}
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}
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std::vector<QString> InputField::getSavedValues()
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{
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std::vector<QString> res;
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if (_handle.isValid()) {
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std::string tmp;
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char hist[21];
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for (int i = 0; i < SaveSize; i++) {
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snprintf(hist, 20, "Save%i", i);
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tmp = _handle->GetASCII(hist, "");
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if (!tmp.empty()) {
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res.push_back(QString::fromUtf8(tmp.c_str()));
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}
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else {
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break; // end of history reached
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}
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}
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}
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return res;
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}
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/** Sets the preference path to \a path. */
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void InputField::setParamGrpPath(const QByteArray& path)
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{
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_handle = App::GetApplication().GetParameterGroupByPath(path);
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if (_handle.isValid()) {
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sGroupString = (const char*)path;
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}
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}
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/** Returns the widget's preferences path. */
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QByteArray InputField::paramGrpPath() const
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{
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if (_handle.isValid()) {
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return sGroupString.c_str();
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}
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return {};
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}
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/// sets the field with a quantity
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void InputField::setValue(const Base::Quantity& quant)
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{
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actQuantity = quant;
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// check limits
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if (actQuantity.getValue() > Maximum) {
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actQuantity.setValue(Maximum);
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}
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if (actQuantity.getValue() < Minimum) {
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actQuantity.setValue(Minimum);
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}
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actUnit = quant.getUnit();
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updateText(quant);
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}
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void InputField::setValue(const double& value)
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{
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setValue(Base::Quantity(value, actUnit));
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}
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double InputField::rawValue() const
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{
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return this->actQuantity.getValue();
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}
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void InputField::setUnit(const Base::Unit& unit)
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{
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actUnit = unit;
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actQuantity.setUnit(unit);
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updateText(actQuantity);
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}
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const Base::Unit& InputField::getUnit() const
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{
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return actUnit;
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}
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/// get stored, valid quantity as a string
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QString InputField::getQuantityString() const
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{
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return QString::fromStdString(actQuantity.getUserString());
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}
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/// set, validate and display quantity from a string. Must match existing units.
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void InputField::setQuantityString(const QString& text)
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{
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// Input and then format the quantity
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newInput(text);
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updateText(actQuantity);
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}
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/// return the quantity in C locale, i.e. decimal separator is a dot.
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QString InputField::rawText() const
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{
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double factor;
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std::string unit;
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double value = actQuantity.getValue();
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actQuantity.getUserString(factor, unit);
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return QStringLiteral("%1 %2").arg(value / factor).arg(QString::fromStdString(unit));
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}
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/// expects the string in C locale and internally converts it into the OS-specific locale
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void InputField::setRawText(const QString& text)
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{
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Base::Quantity quant = Base::Quantity::parse(text.toStdString());
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// Input and then format the quantity
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newInput(QString::fromStdString(quant.getUserString()));
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updateText(actQuantity);
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}
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/// get the value of the singleStep property
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double InputField::singleStep() const
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{
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return StepSize;
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}
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/// set the value of the singleStep property
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void InputField::setSingleStep(double s)
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{
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StepSize = s;
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}
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/// get the value of the maximum property
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double InputField::maximum() const
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{
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return Maximum;
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}
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|
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/// set the value of the maximum property
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void InputField::setMaximum(double m)
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{
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Maximum = m;
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if (actQuantity.getValue() > Maximum) {
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actQuantity.setValue(Maximum);
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updateText(actQuantity);
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}
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}
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/// get the value of the minimum property
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double InputField::minimum() const
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{
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return Minimum;
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}
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/// set the value of the minimum property
|
|
void InputField::setMinimum(double m)
|
|
{
|
|
Minimum = m;
|
|
if (actQuantity.getValue() < Minimum) {
|
|
actQuantity.setValue(Minimum);
|
|
updateText(actQuantity);
|
|
}
|
|
}
|
|
|
|
void InputField::setUnitText(const QString& str)
|
|
{
|
|
try {
|
|
Base::Quantity quant = Base::Quantity::parse(str.toStdString());
|
|
setUnit(quant.getUnit());
|
|
}
|
|
catch (...) {
|
|
// ignore exceptions
|
|
}
|
|
}
|
|
|
|
QString InputField::getUnitText()
|
|
{
|
|
double dFactor;
|
|
std::string unitStr;
|
|
actQuantity.getUserString(dFactor, unitStr);
|
|
return QString::fromStdString(unitStr);
|
|
}
|
|
|
|
int InputField::getPrecision() const
|
|
{
|
|
return this->actQuantity.getFormat().getPrecision();
|
|
}
|
|
|
|
void InputField::setPrecision(const int precision)
|
|
{
|
|
Base::QuantityFormat format = actQuantity.getFormat();
|
|
format.setPrecision(precision);
|
|
actQuantity.setFormat(format);
|
|
updateText(actQuantity);
|
|
}
|
|
|
|
QString InputField::getFormat() const
|
|
{
|
|
return {QChar::fromLatin1(actQuantity.getFormat().toFormat())};
|
|
}
|
|
|
|
void InputField::setFormat(const QString& format)
|
|
{
|
|
if (format.isEmpty()) {
|
|
return;
|
|
}
|
|
QChar c = format[0];
|
|
Base::QuantityFormat f = this->actQuantity.getFormat();
|
|
f.format = Base::QuantityFormat::toFormat(c.toLatin1());
|
|
actQuantity.setFormat(f);
|
|
updateText(actQuantity);
|
|
}
|
|
|
|
// get the value of the minimum property
|
|
int InputField::historySize() const
|
|
{
|
|
return HistorySize;
|
|
}
|
|
|
|
// set the value of the minimum property
|
|
void InputField::setHistorySize(int i)
|
|
{
|
|
assert(i >= 0);
|
|
assert(i < 100);
|
|
|
|
HistorySize = i;
|
|
}
|
|
|
|
void InputField::selectNumber()
|
|
{
|
|
QString expr = QStringLiteral("^([%1%2]?[0-9\\%3]*)\\%4?([0-9]+(%5[%1%2]?[0-9]+)?)")
|
|
.arg(locale().negativeSign())
|
|
.arg(locale().positiveSign())
|
|
.arg(locale().groupSeparator())
|
|
.arg(locale().decimalPoint())
|
|
.arg(locale().exponential());
|
|
auto rmatch = QRegularExpression(expr).match(text());
|
|
if (rmatch.hasMatch()) {
|
|
setSelection(0, rmatch.capturedLength());
|
|
}
|
|
}
|
|
|
|
void InputField::showEvent(QShowEvent* event)
|
|
{
|
|
QLineEdit::showEvent(event);
|
|
|
|
bool selected = this->hasSelectedText();
|
|
updateText(actQuantity);
|
|
if (selected) {
|
|
selectNumber();
|
|
}
|
|
}
|
|
|
|
void InputField::focusInEvent(QFocusEvent* event)
|
|
{
|
|
if (event->reason() == Qt::TabFocusReason || event->reason() == Qt::BacktabFocusReason
|
|
|| event->reason() == Qt::ShortcutFocusReason) {
|
|
if (!this->hasSelectedText()) {
|
|
selectNumber();
|
|
}
|
|
}
|
|
|
|
QLineEdit::focusInEvent(event);
|
|
}
|
|
|
|
void InputField::focusOutEvent(QFocusEvent* event)
|
|
{
|
|
try {
|
|
if (Quantity::parse(this->text().toStdString()).isDimensionless()) {
|
|
// if user didn't enter a unit, we virtually compensate
|
|
// the multiplication factor induced by user unit system
|
|
double factor;
|
|
std::string unitStr;
|
|
actQuantity.getUserString(factor, unitStr);
|
|
actQuantity = actQuantity * factor;
|
|
}
|
|
}
|
|
catch (const Base::ParserError&) {
|
|
// do nothing, let apply the last known good value
|
|
}
|
|
this->setText(QString::fromStdString(actQuantity.getUserString()));
|
|
QLineEdit::focusOutEvent(event);
|
|
}
|
|
|
|
void InputField::keyPressEvent(QKeyEvent* event)
|
|
{
|
|
if (isReadOnly()) {
|
|
QLineEdit::keyPressEvent(event);
|
|
return;
|
|
}
|
|
|
|
double val = actUnitValue;
|
|
|
|
switch (event->key()) {
|
|
case Qt::Key_Up:
|
|
val += StepSize;
|
|
if (val > Maximum) {
|
|
val = Maximum;
|
|
}
|
|
break;
|
|
case Qt::Key_Down:
|
|
val -= StepSize;
|
|
if (val < Minimum) {
|
|
val = Minimum;
|
|
}
|
|
break;
|
|
default:
|
|
QLineEdit::keyPressEvent(event);
|
|
return;
|
|
}
|
|
|
|
double dFactor;
|
|
std::string unitStr;
|
|
actQuantity.getUserString(dFactor, unitStr);
|
|
this->setText(QStringLiteral("%L1 %2").arg(val).arg(QString::fromStdString(unitStr)));
|
|
event->accept();
|
|
}
|
|
|
|
void InputField::wheelEvent(QWheelEvent* event)
|
|
{
|
|
if (!hasFocus()) {
|
|
return;
|
|
}
|
|
|
|
if (isReadOnly()) {
|
|
QLineEdit::wheelEvent(event);
|
|
return;
|
|
}
|
|
|
|
double factor = event->modifiers() & Qt::ControlModifier ? 10 : 1;
|
|
double step = event->angleDelta().y() > 0 ? StepSize : -StepSize;
|
|
double val = actUnitValue + factor * step;
|
|
if (val > Maximum) {
|
|
val = Maximum;
|
|
}
|
|
else if (val < Minimum) {
|
|
val = Minimum;
|
|
}
|
|
|
|
double dFactor;
|
|
std::string unitStr;
|
|
actQuantity.getUserString(dFactor, unitStr);
|
|
|
|
this->setText(QStringLiteral("%L1 %2").arg(val).arg(QString::fromStdString(unitStr)));
|
|
selectNumber();
|
|
event->accept();
|
|
}
|
|
|
|
void InputField::fixup(QString& input) const
|
|
{
|
|
input.remove(locale().groupSeparator());
|
|
|
|
QString asciiMinus(QStringLiteral("-"));
|
|
QString localeMinus(locale().negativeSign());
|
|
if (localeMinus != asciiMinus) {
|
|
input.replace(localeMinus, asciiMinus);
|
|
}
|
|
|
|
QString asciiPlus(QStringLiteral("+"));
|
|
QString localePlus(locale().positiveSign());
|
|
if (localePlus != asciiPlus) {
|
|
input.replace(localePlus, asciiPlus);
|
|
}
|
|
|
|
// workaround for improper handling of plus sign
|
|
// in Building US unit system
|
|
// https://github.com/FreeCAD/FreeCAD/issues/11345
|
|
QString asciiMinusMinus(QStringLiteral("--"));
|
|
input.replace(asciiPlus, asciiMinusMinus);
|
|
}
|
|
|
|
QValidator::State InputField::validate(QString& input, int& pos) const
|
|
{
|
|
Q_UNUSED(pos);
|
|
try {
|
|
Quantity res;
|
|
QString text = input;
|
|
fixup(text);
|
|
res = Quantity::parse(text.toStdString());
|
|
|
|
double factor;
|
|
std::string unitStr;
|
|
res.getUserString(factor, unitStr);
|
|
double value = res.getValue() / factor;
|
|
// disallow one to enter numbers out of range
|
|
if (value > this->Maximum || value < this->Minimum) {
|
|
return QValidator::Invalid;
|
|
}
|
|
}
|
|
catch (Base::Exception&) {
|
|
// Actually invalid input but the newInput slot gives
|
|
// some feedback
|
|
return QValidator::Intermediate;
|
|
}
|
|
|
|
return QValidator::Acceptable;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
InputValidator::InputValidator(InputField* parent)
|
|
: QValidator(parent)
|
|
, dptr(parent)
|
|
{}
|
|
|
|
InputValidator::~InputValidator() = default;
|
|
|
|
void InputValidator::fixup(QString& input) const
|
|
{
|
|
dptr->fixup(input);
|
|
}
|
|
|
|
QValidator::State InputValidator::validate(QString& input, int& pos) const
|
|
{
|
|
return dptr->validate(input, pos);
|
|
}
|
|
|
|
|
|
#include "moc_InputField.cpp"
|