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#pragma once
#include "fwd.hpp"
#include <QAbstractItemModel>
#include <QDateTime>
#include <QObject>
#include <QQuickTextDocument>
#include <QTextCharFormat>
// To be instanciated in QML as the logic backend to some TextArea
class DocumentHandler : public QObject
{
Q_OBJECT
QML_ELEMENT
Q_PROPERTY(QQuickTextDocument* document READ getDoc WRITE setDoc NOTIFY docChanged)
Q_PROPERTY(QDateTime modifyTime READ getModifyTime NOTIFY modificationChanged)
Q_PROPERTY(int cursorPos READ getCursorPos WRITE setCursorPos NOTIFY cursorPosChanged)
Q_PROPERTY(int selectionBegin READ getSelectionBegin WRITE setSelectionBegin NOTIFY selectionBeginChanged)
Q_PROPERTY(int selectionEnd READ getSelectionEnd WRITE setSelectionEnd NOTIFY selectionEndChanged)
Q_PROPERTY(QFont activeFont READ getActiveFont WRITE setActiveFont NOTIFY activeFontChanged)
Q_PROPERTY(QColor activeTextColor READ getActiveTextColor WRITE setActiveTextColor NOTIFY activeTextColorChanged)
private:
QQuickTextDocument* mDoc = nullptr;
QDateTime mModifyTime;
int mCursorPos;
int mSelectionBegin;
int mSelectionEnd;
public:
explicit DocumentHandler(QObject* parent = nullptr);
QQuickTextDocument* getDoc() const;
void setDoc(QQuickTextDocument* newDoc);
const QDateTime& getModifyTime() const;
int getCursorPos() const;
void setCursorPos(int newCursorPos);
int getSelectionBegin() const;
void setSelectionBegin(int newSelectionBegin);
int getSelectionEnd() const;
void setSelectionEnd(int newSelectionEnd);
QFont getActiveFont() const;
void setActiveFont(const QFont& font);
QColor getActiveTextColor() const;
void setActiveTextColor(const QColor& color);
signals:
void docChanged(QQuickTextDocument* oldDoc);
void modificationChanged(); // Redirected from the currently bound document
void cursorPosChanged();
void selectionBeginChanged();
void selectionEndChanged();
void activeFontChanged();
void activeTextColorChanged();
private:
QTextCursor makeTextCursor() const;
void mergeFormatOnWordOrSelection(const QTextCharFormat& format);
};
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