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//===========================================
// Lumina-DE source code
// Copyright (c) 2015, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#ifndef _LUMINA_PLAIN_TEXT_EDITOR_WIDGET_H
#define _LUMINA_PLAIN_TEXT_EDITOR_WIDGET_H
#include <QPlainTextEdit>
#include <QWidget>
#include <QResizeEvent>
#include <QPaintEvent>
#include <QFileSystemWatcher>
//#include <hunspell/hunspell.hxx>
#include "syntaxSupport.h"
#include "Word.h"
//QPlainTextEdit subclass for providing the actual text editor functionality
class PlainTextEditor : public QPlainTextEdit{
Q_OBJECT
public:
PlainTextEditor(QSettings *set, QWidget *parent = 0);
~PlainTextEditor();
//Functions for setting up the editor
void showLineNumbers(bool show = true);
void LoadSyntaxRule(QString type);
void updateSyntaxColors();
//File loading/setting options
void LoadFile(QString filepath);
bool SaveFile(bool newname = false);
QString currentFile();
Word *wordAtPosition(int, int);
bool hasChange();
bool readOnlyFile();
//Functions for managing the line number widget (internal - do not need to run directly)
int LNWWidth(); //replacing the LNW size hint detection
void paintLNW(QPaintEvent *ev); //forwarded from the LNW paint event
void updateLNW();
void setWordList(QList<Word*> _wordList) { wordList = _wordList; }
//void setDictionary(Hunspell *_hunspell) { hunspell = _hunspell; }
QFontMetrics *metrics;
private:
QWidget *LNW; //Line Number Widget
bool showLNW;
QSettings *settings;
QString lastSaveContents;
QFileSystemWatcher *watcher;
QList<Word*> wordList;
QTimer *FTIMER;
//Syntax Highlighting class
Custom_Syntax *SYNTAX;
//Hunspell *hunspell;
//Bracket/Perentheses matching functions
int matchleft, matchright; //positions within the document
void clearMatchData();
void highlightMatch(QChar ch, bool forward, int fromPos, QChar startch);
//Flags to keep track of changes/status
bool hasChanges, readonly;
private slots:
//Functions for managing the line number widget
void LNW_updateWidth(); // Tied to the QPlainTextEdit::blockCountChanged() signal
void LNW_highlightLine(); // Tied to the QPlainTextEdit::cursorPositionChanged() signal
void LNW_update(const QRect&, int); // Tied to the QPlainTextEdit::updateRequest() signal
//Function for running the matching routine
void checkMatchChar();
//Functions for notifying the parent widget of changes
void textChanged();
void cursorMoved();
//Function for prompting the user if the file changed externally
void fileChanged();
protected:
void resizeEvent(QResizeEvent *ev);
void contextMenuEvent(QContextMenuEvent *ev);
void keyPressEvent(QKeyEvent *ev);
signals:
void UnsavedChanges(QString); //filename
void FileLoaded(QString);
void CheckSpelling(int, int);
void statusTipChanged();
};
//===========================================================
// Small Widget for painting the line numbers in the PlainTextEditor
//===========================================================
class LNWidget : public QWidget{
Q_OBJECT
private:
PlainTextEditor *TE;
public:
LNWidget( PlainTextEditor *edit) : QWidget(edit){
TE = edit;
}
~LNWidget(){}
//Replace the virtual QWidget size hint function
// since the main text editor controls the size/location of this widget
QSize sizeHint() const{
return QSize(TE->LNWWidth(),0);
}
protected:
//Replace the virtual QWidget paint event function
// since the main text editor control the size/location of this widget
void paintEvent(QPaintEvent *ev){
TE->paintLNW(ev);
}
};
#endif
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