File indexing completed on 2024-05-12 03:48:21

 /*
     File                 : TextLabelPrivate.h
     Project              : LabPlot
     Description          : Private members of TextLabel
     --------------------------------------------------------------------
     SPDX-FileCopyrightText: 2012-2021 Alexander Semke <alexander.semke@web.de>
     SPDX-FileCopyrightText: 2019-2022 Stefan Gerlach <stefan.gerlach@uni.kn>
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef TEXTLABELPRIVATE_H
 #define TEXTLABELPRIVATE_H
 
 #include "src/backend/worksheet/TextLabel.h"
 #include "src/backend/worksheet/WorksheetElementPrivate.h"
 #include "tools/TeXRenderer.h"
 #include <QFutureWatcher>
 #include <QScreen>
 #include <QStaticText>
 
 #include <gsl/gsl_const_cgs.h>
 
 class QGraphicsSceneHoverEvent;
 class CartesianPlot;
 class CartesianCoordinateSystem;
 class ScaledTextItem;
 class TextLabel;
 class QStaticText;
 
 class TextLabelPrivate : public WorksheetElementPrivate {
 public:
     explicit TextLabelPrivate(TextLabel*);
 
     double zoomFactor{-1.0};
     int teXImageResolution{static_cast<int>(QApplication::primaryScreen()->physicalDotsPerInchX())};
     double teXImageScaleFactor{
         Worksheet::convertToSceneUnits(GSL_CONST_CGS_INCH / QApplication::primaryScreen()->physicalDotsPerInchX(), Worksheet::Unit::Centimeter)};
 
     TextLabel::TextWrapper textWrapper;
     QFont teXFont{QStringLiteral("Computer Modern"), 12}; // reasonable default font and size
     QColor fontColor{Qt::black}; // used only by the theme for unformatted text. The text font is in the HTML and so this variable is never set
     QColor backgroundColor{Qt::transparent}; // same as fontColor
     QImage teXImage;
     QByteArray teXPdfData;
     QFutureWatcher<QByteArray> teXImageFutureWatcher;
     TeXRenderer::Result teXRenderResult;
 
     // see TextLabel::init() for type specific default settings
 
     TextLabel::BorderShape borderShape{TextLabel::BorderShape::NoBorder};
     QPen borderPen{Qt::black, Worksheet::convertToSceneUnits(1.0, Worksheet::Unit::Point), Qt::SolidLine};
     qreal borderOpacity{1.0};
 
     void retransform() override;
     void updateBoundingRect();
     void setZoomFactor(double);
     virtual void recalcShapeAndBoundingRect() override;
     void updatePosition();
     void updateText();
     void updateTeXImage();
     void updateBorder();
     QRectF size();
     QPointF findNearestGluePoint(QPointF scenePoint);
     TextLabel::GluePoint gluePointAt(int index);
 
     ScaledTextItem* m_textItem{nullptr};
 
     QPainterPath borderShapePath;
     QPainterPath labelShape;
 
     // reimplemented from QGraphicsItem
     QPainterPath shape() const override;
     void paint(QPainter*, const QStyleOptionGraphicsItem*, QWidget* = nullptr) override;
     TextLabel* const q{nullptr};
 
     // used in the InfoElement (Marker) to attach the line to the label
     QVector<TextLabel::GluePoint> m_gluePoints;
 };
 
 #endif