File indexing completed on 2024-05-19 15:02:12

 /***************************************************************************
     File                 : TextLabel.h
     Project              : LabPlot
     Description          : Text label supporting reach text and latex formatting
     --------------------------------------------------------------------
     Copyright            : (C) 2009 Tilman Benkert (thzs@gmx.net)
     Copyright            : (C) 2012-2014 Alexander Semke (alexander.semke@web.de)
 
  ***************************************************************************/
 
 /***************************************************************************
  *                                                                         *
  *  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 2 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., 51 Franklin Street, Fifth Floor,                    *
  *   Boston, MA  02110-1301  USA                                           *
  *                                                                         *
  ***************************************************************************/
 
 #ifndef TEXTLABEL_H
 #define TEXTLABEL_H
 
 #include "backend/lib/macros.h"
 #include "tools/TeXRenderer.h"
 #include "backend/worksheet/WorksheetElement.h"
 
 #include <QPen>
 #include <QTextEdit>
 
 class QBrush;
 class QFont;
 class TextLabelPrivate;
 
 class TextLabel : public WorksheetElement {
     Q_OBJECT
 
 public:
     enum class Type {General, PlotTitle, AxisTitle, PlotLegendTitle};
     enum class BorderShape {NoBorder, Rect, Ellipse, RoundSideRect, RoundCornerRect, InwardsRoundCornerRect, DentedBorderRect,
             Cuboid, UpPointingRectangle, DownPointingRectangle, LeftPointingRectangle, RightPointingRectangle};
 
     // The text is always in HMTL format
     struct TextWrapper {
         TextWrapper() {}
         TextWrapper(const QString& t, bool b, bool html): teXUsed(b) {
             if (b) {
                 text = t; // LaTeX does not support HTML, so assume t is a plain text string
                 return;
             }
             text = createHtml(t, html);
         }
         TextWrapper(const QString& t, bool html = false) {
             text = createHtml(t, html);
         }
         QString createHtml(QString text, bool isHtml) {
             if (isHtml)
                 return text;
 
             QTextEdit te(text);
             return te.toHtml();
         }
 
         QString text;
         bool teXUsed{false};
     };
 
     explicit TextLabel(const QString& name, Type type = Type::General);
     ~TextLabel() override;
 
     Type type() const;
     QIcon icon() const override;
     QMenu* createContextMenu() override;
     QGraphicsItem* graphicsItem() const override;
     void setParentGraphicsItem(QGraphicsItem*);
 
     void save(QXmlStreamWriter*) const override;
     bool load(XmlStreamReader*, bool preview) override;
     void loadThemeConfig(const KConfig&) override;
     void saveThemeConfig(const KConfig&) override;
 
     CLASS_D_ACCESSOR_DECL(TextWrapper, text, Text)
     BASIC_D_ACCESSOR_DECL(QColor, fontColor, FontColor)
     BASIC_D_ACCESSOR_DECL(QColor, backgroundColor, BackgroundColor)
     CLASS_D_ACCESSOR_DECL(QFont, teXFont, TeXFont)
     CLASS_D_ACCESSOR_DECL(WorksheetElement::PositionWrapper, position, Position)
     void setPosition(QPointF);
     void setPositionInvalid(bool);
     BASIC_D_ACCESSOR_DECL(WorksheetElement::HorizontalAlignment, horizontalAlignment, HorizontalAlignment)
     BASIC_D_ACCESSOR_DECL(WorksheetElement::VerticalAlignment, verticalAlignment, VerticalAlignment)
     BASIC_D_ACCESSOR_DECL(qreal, rotationAngle, RotationAngle)
 
     BASIC_D_ACCESSOR_DECL(BorderShape, borderShape, BorderShape);
     CLASS_D_ACCESSOR_DECL(QPen, borderPen, BorderPen)
     BASIC_D_ACCESSOR_DECL(qreal, borderOpacity, BorderOpacity)
 
     void setVisible(bool on) override;
     bool isVisible() const override;
     void setPrinting(bool) override;
 
     void retransform() override;
     void handleResize(double horizontalRatio, double verticalRatio, bool pageResize) override;
 
     typedef TextLabelPrivate Private;
 
 private slots:
     void updateTeXImage();
 
     //SLOTs for changes triggered via QActions in the context menu
     void visibilityChanged();
 
 protected:
     TextLabelPrivate* const d_ptr;
     TextLabel(const QString& name, TextLabelPrivate* dd, Type type = Type::General);
 
 private:
     Q_DECLARE_PRIVATE(TextLabel)
     void init();
 
     Type m_type;
     QAction* visibilityAction{nullptr};
 
 signals:
     void textWrapperChanged(const TextLabel::TextWrapper&);
     void teXFontSizeChanged(const int);
     void teXFontChanged(const QFont);
     void fontColorChanged(const QColor);
     void backgroundColorChanged(const QColor);
     void positionChanged(const WorksheetElement::PositionWrapper&);
     void horizontalAlignmentChanged(WorksheetElement::HorizontalAlignment);
     void verticalAlignmentChanged(WorksheetElement::VerticalAlignment);
     void rotationAngleChanged(qreal);
     void visibleChanged(bool);
     void borderShapeChanged(TextLabel::BorderShape);
     void borderPenChanged(QPen&);
     void borderOpacityChanged(float);
 
     void teXImageUpdated(bool);
     void changed();
 };
 
 #endif