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// Copyright (C) 2025 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "plaintextedit.h"
#include "../id.h"
#pragma once
namespace Utils {
const int FULL_LINE_HIGHLIGHT_FORMAT_PROPERTY_ID = QTextFormat::UserProperty + 43;
using FormatRanges = QList<QTextLayout::FormatRange>;
class QTCREATOR_UTILS_EXPORT LayoutItem
{
public:
LayoutItem() = default;
explicit LayoutItem(const Id &category);
virtual ~LayoutItem() = default;
virtual qreal height() { return 0.0; }
virtual qreal width() const { return 0.0; }
virtual void ensureLayouted(QTextDocument *doc, const QFontMetrics & fm, qreal availableWidth);
virtual void paintBackground(QPainter *p,const QPointF &pos,const QRectF &clip = {});
virtual void paintItem(
QPainter *p,
const QPointF &pos,
const FormatRanges &selections = {},
const QRectF &clip = {});
virtual void clear() {}
Id category() const { return m_category; }
private:
Id m_category;
};
using LayoutItems = std::list<std::unique_ptr<LayoutItem>>;
class QTCREATOR_UTILS_EXPORT TextLayoutItem : public LayoutItem
{
public:
TextLayoutItem() = default;
TextLayoutItem(std::unique_ptr<QTextLayout> &&layout, const Id &category);
qreal height() override;
qreal width() const override;
void ensureLayouted(QTextDocument *doc, const QFontMetrics & fm, qreal availableWidth) override;
void paintBackground(QPainter *p,const QPointF &pos,const QRectF &clip = {}) override;
void paintItem(
QPainter *p,
const QPointF &pos,
const FormatRanges &selections = {},
const QRectF &clip = {}) override;
void clear() override;
QTextLayout* layout();
private:
std::unique_ptr<QTextLayout> m_textLayout;
};
class QTCREATOR_UTILS_EXPORT EmptyLayoutItem : public LayoutItem
{
public:
EmptyLayoutItem() = default;
EmptyLayoutItem(qreal height, const Id &category = {});
void setBackground(const QBrush &background) { m_background = background; }
qreal height() override;
void paintBackground(QPainter *p,const QPointF &pos,const QRectF &clip = {}) override;
void paintItem(
QPainter *p,
const QPointF &pos,
const FormatRanges &selections = {},
const QRectF &clip = {}) override;
private:
qreal m_height = 0.0;
QBrush m_background;
};
class QTCREATOR_UTILS_EXPORT TextEditorLayout : public PlainTextDocumentLayout
{
public:
TextEditorLayout(PlainTextDocumentLayout *docLayout);
~TextEditorLayout() override;
void resetBlockSize(const QTextBlock &block);
void paintBlock(
const QTextBlock &block,
QPainter *p,
const QPointF &pos,
const FormatRanges &selections = {},
const QRectF &clipRect = {});
void paintBackground(const QTextBlock &block, QPainter *p, const QPointF &pos,const QRectF &clip = {});
QTextLayout *blockLayout(const QTextBlock &block) const override;
void clearBlockLayout(QTextBlock &block) const override;
void clearBlockLayout(
QTextBlock &start, QTextBlock &end, bool &blockVisibilityChanged) const override;
void relayout() override;
int additionalBlockHeight(const QTextBlock &block, bool includeEmbeddedWidgetsHeight) const override;
QRectF replacementBlockBoundingRect(const QTextBlock &block) const override;
int lineSpacing() const override;
int relativeLineSpacing() const override;
int mainLayoutOffset(const QTextBlock &block) const;
void prependLayoutItem(const QTextBlock &block, std::unique_ptr<LayoutItem> &&layoutItem);
void appendLayoutItem(const QTextBlock &block, std::unique_ptr<LayoutItem> &&layoutItem);
void prependAdditionalLayouts(
const QTextBlock &block, const QList<QTextLayout *> &layouts, const Id id = {});
void appendAdditionalLayouts(
const QTextBlock &block, const QList<QTextLayout *> &layouts, const Id id = {});
int removeLayoutItems(const QTextBlock &block, const Id id = {});
const QList<LayoutItem *> layoutItems(const QTextBlock &block) const;
const QList<LayoutItem *> layoutItemsForCategory(const QTextBlock &block, const Id id) const;
void documentChanged(int from, int charsRemoved, int charsAdded) override;
int blockLineCount(const QTextBlock &block) const override;
void setBlockLineCount(QTextBlock &block, int lineCount) const override;
int offsetForBlock(const QTextBlock &block) const;
void setBlockLayedOut(const QTextBlock &block) const override;
bool blockLayoutValid(int index) const;
int lineCount() const override;
int firstLineNumberOf(const QTextBlock &block) const override;
int offsetForLine(int line) const;
int lineForOffset(int offset) const;
int documentPixelHeight() const;
QTextBlock findBlockByLineNumber(int lineNumber) const override;
bool moveCursorImpl(
QTextCursor &cursor,
QTextCursor::MoveOperation operation,
QTextCursor::MoveMode mode = QTextCursor::MoveAnchor) const;
bool moveCursor(
QTextCursor &cursor,
QTextCursor::MoveOperation operation,
QTextCursor::MoveMode mode = QTextCursor::MoveAnchor,
int steps = 1) const override;
qreal blockWidth(const QTextBlock &block) override;
private:
class TextEditorLayoutPrivate;
TextEditorLayoutPrivate *d;
};
} // namespace Utils
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