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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPLAINTEXTEDIT_P_H
#define QPLAINTEXTEDIT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtWidgets/private/qtwidgetsglobal_p.h>
#include "private/qabstractscrollarea_p.h"
#include "QtGui/qtextdocumentfragment.h"
#if QT_CONFIG(scrollbar)
#include "QtWidgets/qscrollbar.h"
#endif
#include "QtGui/qtextcursor.h"
#include "QtGui/qtextformat.h"
#if QT_CONFIG(menu)
#include "QtWidgets/qmenu.h"
#endif
#include "QtGui/qabstracttextdocumentlayout.h"
#include "QtCore/qbasictimer.h"
#include "qplaintextedit.h"
#include "private/qwidgettextcontrol_p.h"
#include <QtCore/qpointer.h>
QT_REQUIRE_CONFIG(textedit);
QT_BEGIN_NAMESPACE
class QMimeData;
class QPlainTextEdit;
class ExtraArea;
class QPlainTextEditControl : public QWidgetTextControl
{
Q_OBJECT
public:
QPlainTextEditControl(QPlainTextEdit *parent);
QMimeData *createMimeDataFromSelection() const override;
bool canInsertFromMimeData(const QMimeData *source) const override;
void insertFromMimeData(const QMimeData *source) override;
int hitTest(const QPointF &point, Qt::HitTestAccuracy = Qt::FuzzyHit) const override;
QRectF blockBoundingRect(const QTextBlock &block) const override;
QString anchorAt(const QPointF &pos) const override;
inline QRectF cursorRect(const QTextCursor &cursor) const {
QRectF r = QWidgetTextControl::cursorRect(cursor);
r.setLeft(qMax(r.left(), (qreal) 0.));
return r;
}
inline QRectF cursorRect() { return cursorRect(textCursor()); }
void ensureCursorVisible() override {
textEdit->ensureCursorVisible();
emit microFocusChanged();
}
QPlainTextEdit *textEdit;
int topBlock;
QTextBlock firstVisibleBlock() const;
QVariant loadResource(int type, const QUrl &name) override {
return textEdit->loadResource(type, name);
}
};
class QPlainTextEditPrivate : public QAbstractScrollAreaPrivate
{
Q_DECLARE_PUBLIC(QPlainTextEdit)
public:
QPlainTextEditPrivate();
void init(const QString &txt = QString());
void repaintContents(const QRectF &contentsRect);
void updatePlaceholderVisibility();
inline QPoint mapToContents(const QPoint &point) const
{ return QPoint(point.x() + horizontalOffset(), point.y() + verticalOffset()); }
void adjustScrollbars();
void verticalScrollbarActionTriggered(int action);
void ensureViewportLayouted();
void relayoutDocument();
void pageUpDown(QTextCursor::MoveOperation op, QTextCursor::MoveMode moveMode, bool moveCursor = true);
inline int horizontalOffset() const
{ return (q_func()->isRightToLeft() ? (hbar->maximum() - hbar->value()) : hbar->value()); }
qreal verticalOffset(int topBlock, int topLine) const;
qreal verticalOffset() const;
inline void sendControlEvent(QEvent *e)
{ control->processEvent(e, QPointF(horizontalOffset(), verticalOffset()), viewport); }
void updateDefaultTextOption();
QBasicTimer autoScrollTimer;
#ifdef QT_KEYPAD_NAVIGATION
QBasicTimer deleteAllTimer;
#endif
QPoint autoScrollDragPos;
QString placeholderText;
QPlainTextEditControl *control = nullptr;
qreal topLineFracture = 0; // for non-int sized fonts
qreal pageUpDownLastCursorY = 0;
QPlainTextEdit::LineWrapMode lineWrap = QPlainTextEdit::WidgetWidth;
QTextOption::WrapMode wordWrap = QTextOption::WrapAtWordBoundaryOrAnywhere;
int originalOffsetY = 0;
int topLine = 0;
uint tabChangesFocus : 1;
uint showCursorOnInitialShow : 1;
uint backgroundVisible : 1;
uint centerOnScroll : 1;
uint inDrag : 1;
uint clickCausedFocus : 1;
uint pageUpDownLastCursorYIsValid : 1;
uint placeholderTextShown : 1;
void setTopLine(int visualTopLine, int dx = 0);
void setTopBlock(int newTopBlock, int newTopLine, int dx = 0);
void ensureVisible(int position, bool center, bool forceCenter = false);
void ensureCursorVisible(bool center = false);
void updateViewport();
QPointer<QPlainTextDocumentLayout> documentLayoutPtr;
void append(const QString &text, Qt::TextFormat format = Qt::AutoText);
void cursorPositionChanged();
void modificationChanged(bool);
inline bool placeHolderTextToBeShown() const
{
Q_Q(const QPlainTextEdit);
return q->document()->isEmpty() && !q->placeholderText().isEmpty();
}
};
QT_END_NAMESPACE
#endif // QPLAINTEXTEDIT_P_H
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