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/*
SuperCollider Qt IDE
Copyright (c) 2012 Jakob Leben & Tim Blechmann
http://www.audiosynth.com
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
*/
#pragma once
#include <QPlainTextEdit>
#include <QGraphicsScene>
#include <QList>
namespace ScIDE {
namespace Settings {
class Manager;
}
class Document;
class OverlayAnimator;
class GenericCodeEditor : public QPlainTextEdit {
Q_OBJECT
friend class LineIndicator;
friend class OverlayAnimator;
public:
GenericCodeEditor(Document*, QWidget* parent = NULL);
~GenericCodeEditor();
// Rule of 5 -- with an explicit dtor, make sure that copy ctor/assign and move
// ctor/assign are deleted.
// If these must be implemented in the future, make sure they take care of
// mDoc->lastActiveEditor() appropriately. See source of dtor method.
GenericCodeEditor(const GenericCodeEditor& other) = delete;
GenericCodeEditor& operator=(const GenericCodeEditor& other) = delete;
GenericCodeEditor(GenericCodeEditor&& other) = delete;
GenericCodeEditor& operator=(GenericCodeEditor&& other) = delete;
Document* document() { return mDoc; }
QTextDocument* textDocument() { return QPlainTextEdit::document(); }
bool showWhitespace();
bool showLinenumber();
bool find(const QRegExp& expr, QTextDocument::FindFlags options = 0);
bool replace(const QRegExp& expr, const QString& replacement, QTextDocument::FindFlags options = 0);
int findAll(const QRegExp& expr, QTextDocument::FindFlags options = 0);
int replaceAll(const QRegExp& expr, const QString& replacement, QTextDocument::FindFlags options = 0);
void showPosition(int charPosition, int selectionLength = 0);
QString symbolUnderCursor();
int inactiveFadeAlpha() { return mInactiveFadeAlpha; }
protected:
virtual bool event(QEvent*);
virtual void keyPressEvent(QKeyEvent*);
virtual void keyReleaseEvent(QKeyEvent*);
void doKeyAction(QKeyEvent*);
virtual void mousePressEvent(QMouseEvent*);
virtual void mouseDoubleClickEvent(QMouseEvent*);
virtual void mouseReleaseEvent(QMouseEvent*);
virtual void wheelEvent(QWheelEvent*);
virtual void dragEnterEvent(QDragEnterEvent*);
virtual void focusInEvent(QFocusEvent*);
virtual void focusOutEvent(QFocusEvent*);
void hideMouseCursor(QKeyEvent*);
virtual QMimeData* createMimeDataFromSelection() const;
public slots:
void applySettings(Settings::Manager*);
void closeDocument();
void zoomIn(int steps = 1);
void zoomOut(int steps = 1);
void resetFontSize();
void setShowWhitespace(bool);
void setShowLinenumber(bool);
void clearSearchHighlighting();
void toggleOverwriteMode();
void copyLineUp();
void copyLineDown();
void moveLineUp();
void moveLineDown();
void deleteWord();
void gotoPreviousEmptyLine();
void gotoNextEmptyLine();
void setActiveAppearance(bool active);
void updateDocLastSelection();
protected slots:
void updateLayout();
void updateLineIndicator(QRect, int);
void onDocumentFontChanged();
void onCursorPositionChanged();
protected:
void resizeEvent(QResizeEvent*);
void paintLineIndicator(QPaintEvent*);
virtual void paintEvent(QPaintEvent*);
virtual void updateExtraSelections();
void updateCurrentLineHighlighting();
virtual void indentCurrentRegion() {}
void zoomFont(int steps);
void copyUpDown(bool up);
void moveLineUpDown(bool up);
void gotoEmptyLineUpDown(bool up);
void hideMouseCursor();
void updateFocusRect();
class LineIndicator* mLineIndicator;
QGraphicsScene* mOverlay;
QWidget* mOverlayWidget;
OverlayAnimator* mOverlayAnimator;
// If this "const" is removed in the future, make sure to handle mDoc->lastActiveEditor()
// correctly (see source of dtor method for this class).
Document* const mDoc;
bool mHighlightCurrentLine;
bool mEditorBoxIsActive;
int mLastCursorBlock;
QTextCharFormat mCurrentLineTextFormat;
QTextCharFormat mSearchResultTextFormat;
QList<QTextEdit::ExtraSelection> mSearchSelections;
QGraphicsRectItem* mFocusRect = 0;
int mInactiveFadeAlpha = 0;
private:
void handleKeyDown(QKeyEvent* event, QTextCursor& textCursor);
void handleKeyUp(QKeyEvent* event, QTextCursor& textCursor);
void handleKeyDelete(QKeyEvent* event, QTextCursor& textCursor);
void handleKeyRightParentheses(QKeyEvent* event, QTextCursor& textCursor);
void handleKeyBackspace(QKeyEvent* event, QTextCursor& textCursor, bool& updateCursor);
};
} // namespace ScIDE
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