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//=============================================================================
// MuseScore
// Music Composition & Notation
//
// Copyright (C) 2014 Werner Schweer
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2
// as published by the Free Software Foundation and appearing in
// the file LICENCE.GPL
//=============================================================================
#ifndef __TEXTBASE_H__
#define __TEXTBASE_H__
#include "element.h"
#include "property.h"
#include "style.h"
namespace Ms {
class MuseScoreView;
struct SymCode;
class TextBase;
class TextBlock;
class ChangeText;
//---------------------------------------------------------
// FrameType
//---------------------------------------------------------
enum class FrameType : char {
NO_FRAME, SQUARE, CIRCLE
};
//---------------------------------------------------------
// VerticalAlignment
//---------------------------------------------------------
enum class VerticalAlignment : char {
AlignNormal, AlignSuperScript, AlignSubScript
};
//---------------------------------------------------------
// FormatId
//---------------------------------------------------------
enum class FormatId : char {
Bold, Italic, Underline, Valign, FontSize, FontFamily
};
//---------------------------------------------------------
// MultiClick
//---------------------------------------------------------
enum class MultiClick : char {
Double, Triple
};
//---------------------------------------------------------
// CharFormat
//---------------------------------------------------------
class CharFormat {
FontStyle _style { FontStyle::Normal };
bool _preedit { false };
VerticalAlignment _valign { VerticalAlignment::AlignNormal };
qreal _fontSize { 12.0 };
QString _fontFamily;
public:
CharFormat() {}
bool operator==(const CharFormat&) const;
FontStyle style() const { return _style; }
void setStyle(FontStyle s) { _style = s; }
bool bold() const { return _style & FontStyle::Bold; }
bool italic() const { return _style & FontStyle::Italic; }
bool underline() const { return _style & FontStyle::Underline; }
void setBold(bool val) { _style = val ? _style + FontStyle::Bold : _style - FontStyle::Bold; }
void setItalic(bool val) { _style = val ? _style + FontStyle::Italic : _style - FontStyle::Italic; }
void setUnderline(bool val) { _style = val ? _style + FontStyle::Underline : _style - FontStyle::Underline; }
bool preedit() const { return _preedit; }
VerticalAlignment valign() const { return _valign; }
qreal fontSize() const { return _fontSize; }
QString fontFamily() const { return _fontFamily; }
void setPreedit(bool val) { _preedit = val; }
void setValign(VerticalAlignment val) { _valign = val; }
void setFontSize(qreal val) { Q_ASSERT(val > 0.0); _fontSize = val; }
void setFontFamily(const QString& val) { _fontFamily = val; }
void setFormat(FormatId, QVariant);
};
//---------------------------------------------------------
// TextCursor
// Contains current position and start of selection
// during editing.
//---------------------------------------------------------
class TextCursor {
TextBase* _text;
CharFormat _format;
int _row { 0 };
int _column { 0 };
int _selectLine { 0 }; // start of selection
int _selectColumn { 0 };
public:
TextCursor(TextBase* t) : _text(t) {}
TextBase* text() const { return _text; }
bool hasSelection() const { return (_selectLine != _row) || (_selectColumn != _column); }
void clearSelection();
CharFormat* format() { return &_format; }
const CharFormat* format() const { return &_format; }
void setFormat(const CharFormat& f) { _format = f; }
int row() const { return _row; }
int column() const { return _column; }
int selectLine() const { return _selectLine; }
int selectColumn() const { return _selectColumn; }
void setRow(int val) { _row = val; }
void setColumn(int val) { _column = val; }
void setSelectLine(int val) { _selectLine = val; }
void setSelectColumn(int val) { _selectColumn = val; }
int columns() const;
void init();
TextBlock& curLine() const;
QRectF cursorRect() const;
bool movePosition(QTextCursor::MoveOperation op, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor, int count = 1);
void doubleClickSelect();
void moveCursorToEnd() { movePosition(QTextCursor::End); }
void moveCursorToStart() { movePosition(QTextCursor::Start); }
QChar currentCharacter() const;
bool set(const QPointF& p, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);
QString selectedText() const;
void updateCursorFormat();
void setFormat(FormatId, QVariant);
void changeSelectionFormat(FormatId id, QVariant val);
};
//---------------------------------------------------------
// TextFragment
// contains a styled text
//---------------------------------------------------------
class TextFragment {
public:
mutable CharFormat format;
QPointF pos; // y is relative to TextBlock->y()
mutable QString text;
bool operator ==(const TextFragment& f) const;
TextFragment();
TextFragment(const QString& s);
TextFragment(TextCursor*, const QString&);
TextFragment split(int column);
void draw(QPainter*, const TextBase*) const;
QFont font(const TextBase*) const;
int columns() const;
void changeFormat(FormatId id, QVariant data);
};
//---------------------------------------------------------
// TextBlock
// represents a block of formatted text
//---------------------------------------------------------
class TextBlock {
QList<TextFragment> _fragments;
qreal _y = 0;
qreal _lineSpacing;
QRectF _bbox;
bool _eol = false;
void simplify();
public:
TextBlock() {}
bool operator ==(const TextBlock& x) { return _fragments == x._fragments; }
bool operator !=(const TextBlock& x) { return _fragments != x._fragments; }
void draw(QPainter*, const TextBase*) const;
void layout(TextBase*);
const QList<TextFragment>& fragments() const { return _fragments; }
QList<TextFragment>& fragments() { return _fragments; }
QList<TextFragment>* fragmentsWithoutEmpty();
const QRectF& boundingRect() const { return _bbox; }
QRectF boundingRect(int col1, int col2, const TextBase*) const;
int columns() const;
void insert(TextCursor*, const QString&);
void insertEmptyFragmentIfNeeded(TextCursor*);
void removeEmptyFragment();
QString remove(int column, TextCursor*);
QString remove(int start, int n, TextCursor*);
int column(qreal x, TextBase*) const;
TextBlock split(int column, TextCursor* cursor);
qreal xpos(int col, const TextBase*) const;
const CharFormat* formatAt(int) const;
const TextFragment* fragment(int col) const;
QList<TextFragment>::iterator fragment(int column, int* rcol, int* ridx);
qreal y() const { return _y; }
void setY(qreal val) { _y = val; }
qreal lineSpacing() const { return _lineSpacing; }
QString text(int, int) const;
bool eol() const { return _eol; }
void setEol(bool val) { _eol = val; }
void changeFormat(FormatId, QVariant val, int start, int n);
};
//---------------------------------------------------------
// TextBase
//---------------------------------------------------------
class TextBase : public Element {
// sorted by size to allow for most compact memory layout
M_PROPERTY(FontStyle, fontStyle, setFontStyle)
M_PROPERTY(Align, align, setAlign)
M_PROPERTY(FrameType, frameType, setFrameType)
M_PROPERTY(QString, family, setFamily)
M_PROPERTY(qreal, size, setSize)
M_PROPERTY(QColor, bgColor, setBgColor)
M_PROPERTY(QColor, frameColor, setFrameColor)
M_PROPERTY(Spatium, frameWidth, setFrameWidth)
M_PROPERTY(Spatium, paddingWidth, setPaddingWidth)
M_PROPERTY(int, frameRound, setFrameRound)
// there are two representations of text; only one
// might be valid and the other can be constructed from it
mutable QString _text; // cached
mutable bool textInvalid { true };
QList<TextBlock> _layout;
bool layoutInvalid { true };
Tid _tid; // text style id
QString preEdit; // move to EditData?
bool _layoutToParentWidth { false };
int hexState { -1 };
bool _primed { 0 };
void drawSelection(QPainter*, const QRectF&) const;
void insert(TextCursor*, uint code);
void genText() const;
virtual int getPropertyFlagsIdx(Pid id) const override;
QString stripText(bool, bool, bool) const;
protected:
QColor textColor() const;
QRectF frame; // calculated in layout()
void layoutFrame();
void layoutEdit();
void createLayout();
void insertSym(EditData& ed, SymId id);
public:
TextBase(Score* = 0, Tid tid = Tid::DEFAULT, ElementFlags = ElementFlag::NOTHING);
TextBase(Score*, ElementFlags);
TextBase(const TextBase&);
virtual bool mousePress(EditData&) override;
Text &operator=(const Text&) = delete;
virtual void draw(QPainter*) const override;
virtual void drawEditMode(QPainter* p, EditData& ed) override;
void setPlainText(const QString&);
void setXmlText(const QString&);
QString xmlText() const;
QString plainText() const;
void insertText(EditData&, const QString&);
virtual void layout() override;
virtual void layout1();
qreal lineSpacing() const;
qreal lineHeight() const;
virtual qreal baseLine() const override;
bool empty() const { return xmlText().isEmpty(); }
void clear() { setXmlText(QString()); }
bool layoutToParentWidth() const { return _layoutToParentWidth; }
void setLayoutToParentWidth(bool v) { _layoutToParentWidth = v; }
virtual void startEdit(EditData&) override;
virtual bool edit(EditData&) override;
virtual void editCut(EditData&) override;
virtual void editCopy(EditData&) override;
virtual void endEdit(EditData&) override;
void movePosition(EditData&, QTextCursor::MoveOperation);
bool deleteSelectedText(EditData&);
void selectAll(TextCursor*);
void multiClickSelect(EditData&, MultiClick);
bool isPrimed() const { return _primed; }
void setPrimed(bool primed) { _primed = primed; }
virtual void write(XmlWriter& xml) const override;
virtual void read(XmlReader&) override;
virtual void writeProperties(XmlWriter& xml) const { writeProperties(xml, true, true); }
void writeProperties(XmlWriter& xml, bool writeText) const { writeProperties(xml, writeText, true); }
void writeProperties(XmlWriter&, bool, bool) const;
bool readProperties(XmlReader&);
virtual void paste(EditData&);
QRectF pageRectangle() const;
void dragTo(EditData&);
virtual QLineF dragAnchor() const override;
virtual bool acceptDrop(EditData&) const override;
virtual Element* drop(EditData&) override;
friend class TextBlock;
friend class TextFragment;
QString convertFromHtml(const QString& ss) const;
static QString convertToHtml(const QString&, const TextStyle&);
static QString tagEscape(QString s);
static QString unEscape(QString s);
static QString escape(QString s);
virtual QString accessibleInfo() const override;
virtual QString screenReaderInfo() const override;
virtual int subtype() const override;
virtual QString subtypeName() const override;
QList<TextFragment> fragmentList() const; // for MusicXML formatted export
static bool validateText(QString& s);
bool inHexState() const { return hexState >= 0; }
void endHexState(EditData&);
void inputTransition(EditData&, QInputMethodEvent*);
QFont font() const;
QFontMetricsF fontMetrics() const;
virtual QVariant getProperty(Pid propertyId) const override;
virtual bool setProperty(Pid propertyId, const QVariant& v) override;
virtual QVariant propertyDefault(Pid id) const override;
virtual void undoChangeProperty(Pid id, const QVariant& v, PropertyFlags ps) override;
virtual Pid propertyId(const QStringRef& xmlName) const override;
virtual Sid getPropertyStyle(Pid) const;
virtual void styleChanged();
void editInsertText(TextCursor*, const QString&);
TextCursor* cursor(const EditData&);
const TextBlock& textBlock(int line) const { return _layout[line]; }
TextBlock& textBlock(int line) { return _layout[line]; }
QList<TextBlock>& textBlockList() { return _layout; }
int rows() const { return _layout.size(); }
void setTextInvalid() { textInvalid = true; }
bool isTextInvalid() const { return textInvalid; }
void setLayoutInvalid() { layoutInvalid = true; }
bool isLayoutInvalid() const { return layoutInvalid; }
// helper functions
bool hasFrame() const { return _frameType != FrameType::NO_FRAME; }
bool circle() const { return _frameType == FrameType::CIRCLE; }
bool square() const { return _frameType == FrameType::SQUARE; }
Tid tid() const { return _tid; }
void setTid(Tid id) { _tid = id; }
void initTid(Tid id);
void initTid(Tid id, bool preserveDifferent);
virtual void initElementStyle(const ElementStyle*) override;
bool bold() const { return _fontStyle & FontStyle::Bold; }
bool italic() const { return _fontStyle & FontStyle::Italic; }
bool underline() const { return _fontStyle & FontStyle::Underline; }
void setBold(bool val) { _fontStyle = val ? _fontStyle + FontStyle::Bold : _fontStyle - FontStyle::Bold; }
void setItalic(bool val) { _fontStyle = val ? _fontStyle + FontStyle::Italic : _fontStyle - FontStyle::Italic; }
void setUnderline(bool val) { _fontStyle = val ? _fontStyle + FontStyle::Underline : _fontStyle - FontStyle::Underline; }
bool hasCustomFormatting() const;
friend class TextCursor;
using ScoreElement::undoChangeProperty;
};
} // namespace Ms
#endif
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