feat: Add side by side refactor widget (#276)

This commit is contained in:
Petr Mironychev
2025-11-26 15:45:22 +01:00
committed by GitHub
parent b4f31dee23
commit 670f81c3dd
16 changed files with 1808 additions and 27 deletions

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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <QString>
#include <QStringList>
#include <QTextBlock>
#include <QTextDocument>
#include <texteditor/texteditor.h>
#include <utils/textutils.h>
namespace QodeAssist {
class ContextExtractor
{
public:
static QString extractBefore(TextEditor::TextEditorWidget *editor,
const Utils::Text::Range &range,
int lineCount)
{
if (!editor || lineCount <= 0) {
return QString();
}
QTextDocument *doc = editor->document();
int startLine = range.begin.line;
int contextStartLine = qMax(1, startLine - lineCount);
QStringList contextLines;
for (int line = contextStartLine; line < startLine; ++line) {
QTextBlock block = doc->findBlockByNumber(line - 1);
if (block.isValid()) {
contextLines.append(block.text());
}
}
return contextLines.join('\n');
}
static QString extractAfter(TextEditor::TextEditorWidget *editor,
const Utils::Text::Range &range,
int lineCount)
{
if (!editor || lineCount <= 0) {
return QString();
}
QTextDocument *doc = editor->document();
int endLine = range.end.line;
int totalLines = doc->blockCount();
int contextEndLine = qMin(totalLines, endLine + lineCount);
QStringList contextLines;
for (int line = endLine + 1; line <= contextEndLine; ++line) {
QTextBlock block = doc->findBlockByNumber(line - 1);
if (block.isValid()) {
contextLines.append(block.text());
}
}
return contextLines.join('\n');
}
static QString extractLineContext(QTextDocument *doc, int position, bool before)
{
QTextCursor cursor(doc);
cursor.setPosition(position);
if (before) {
int posInBlock = cursor.positionInBlock();
cursor.movePosition(QTextCursor::StartOfBlock);
cursor.movePosition(QTextCursor::Right, QTextCursor::KeepAnchor, posInBlock);
return cursor.selectedText();
} else {
cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
return cursor.selectedText();
}
}
static QStringList extractSurroundingLines(QTextDocument *doc, int position, int linesBefore, int linesAfter)
{
QTextCursor cursor(doc);
cursor.setPosition(position);
QTextBlock currentBlock = cursor.block();
QStringList result;
QTextBlock blockBefore = currentBlock.previous();
QStringList beforeLines;
for (int i = 0; i < linesBefore && blockBefore.isValid(); ++i) {
beforeLines.prepend(blockBefore.text());
blockBefore = blockBefore.previous();
}
result.append(beforeLines);
QTextBlock blockAfter = currentBlock.next();
for (int i = 0; i < linesAfter && blockAfter.isValid(); ++i) {
result.append(blockAfter.text());
blockAfter = blockAfter.next();
}
return result;
}
};
} // namespace QodeAssist

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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <QString>
#include <QCoreApplication>
#include <utils/differ.h>
namespace QodeAssist {
class DiffStatistics
{
Q_DECLARE_TR_FUNCTIONS(DiffStatistics)
public:
DiffStatistics() = default;
void calculate(const QList<Utils::Diff> &diffList)
{
m_linesAdded = 0;
m_linesRemoved = 0;
for (const auto &diff : diffList) {
if (diff.command == Utils::Diff::Insert) {
m_linesAdded += diff.text.count('\n') + (diff.text.isEmpty() ? 0 : 1);
} else if (diff.command == Utils::Diff::Delete) {
m_linesRemoved += diff.text.count('\n') + (diff.text.isEmpty() ? 0 : 1);
}
}
}
int linesAdded() const { return m_linesAdded; }
int linesRemoved() const { return m_linesRemoved; }
QString formatSummary() const
{
if (m_linesAdded > 0 && m_linesRemoved > 0) {
return tr("+%1 lines, -%2 lines").arg(m_linesAdded).arg(m_linesRemoved);
} else if (m_linesAdded > 0) {
return tr("+%1 lines").arg(m_linesAdded);
} else if (m_linesRemoved > 0) {
return tr("-%1 lines").arg(m_linesRemoved);
}
return tr("No changes");
}
private:
int m_linesAdded{0};
int m_linesRemoved{0};
};
} // namespace QodeAssist

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widgets/RefactorWidget.cpp Normal file
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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#include "RefactorWidget.hpp"
#include "DiffStatistics.hpp"
#include <texteditor/textdocument.h>
#include <texteditor/syntaxhighlighter.h>
#include <QCloseEvent>
#include <QEnterEvent>
#include <QEvent>
#include <QHBoxLayout>
#include <QKeyEvent>
#include <QLabel>
#include <QPainter>
#include <QRegion>
#include <QScrollBar>
#include <QSharedPointer>
#include <QSplitter>
#include <QTextBlock>
#include <QVBoxLayout>
#include <coreplugin/icore.h>
#include <utils/differ.h>
#include <utils/theme/theme.h>
#include "settings/QuickRefactorSettings.hpp"
namespace QodeAssist {
CustomSplitterHandle::CustomSplitterHandle(Qt::Orientation orientation, QSplitter *parent)
: QSplitterHandle(orientation, parent)
{
if (orientation == Qt::Horizontal) {
setCursor(Qt::SplitHCursor);
} else {
setCursor(Qt::SplitVCursor);
}
setMouseTracking(true);
}
void CustomSplitterHandle::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
QColor bgColor = Utils::creatorColor(Utils::Theme::BackgroundColorHover);
bgColor.setAlpha(m_hovered ? 150 : 50);
painter.fillRect(rect(), bgColor);
QColor lineColor = Utils::creatorColor(Utils::Theme::SplitterColor);
lineColor.setAlpha(m_hovered ? 255 : 180);
const int lineWidth = m_hovered ? 3 : 2;
const int margin = 10;
painter.setPen(QPen(lineColor, lineWidth));
if (orientation() == Qt::Horizontal) {
int x = width() / 2;
painter.drawLine(x, margin, x, height() - margin);
painter.setBrush(lineColor);
int centerY = height() / 2;
const int dotSize = m_hovered ? 3 : 2;
const int dotSpacing = 8;
for (int i = -2; i <= 2; ++i) {
painter.drawEllipse(QPoint(x, centerY + i * dotSpacing), dotSize, dotSize);
}
} else {
int y = height() / 2;
painter.drawLine(margin, y, width() - margin, y);
}
}
void CustomSplitterHandle::enterEvent(QEnterEvent *event)
{
m_hovered = true;
update();
QSplitterHandle::enterEvent(event);
}
void CustomSplitterHandle::leaveEvent(QEvent *event)
{
m_hovered = false;
update();
QSplitterHandle::leaveEvent(event);
}
CustomSplitter::CustomSplitter(Qt::Orientation orientation, QWidget *parent)
: QSplitter(orientation, parent)
{
}
QSplitterHandle *CustomSplitter::createHandle()
{
return new CustomSplitterHandle(orientation(), this);
}
RefactorWidget::RefactorWidget(TextEditor::TextEditorWidget *sourceEditor, QWidget *parent)
: QWidget(parent)
, m_sourceEditor(sourceEditor)
, m_leftEditor(nullptr)
, m_rightEditor(nullptr)
, m_leftContainer(nullptr)
, m_splitter(nullptr)
, m_statsLabel(nullptr)
, m_applyButton(nullptr)
, m_declineButton(nullptr)
, m_editorWidth(800)
, m_syncingScroll(false)
, m_isClosing(false)
, m_linesAdded(0)
, m_linesRemoved(0)
{
setupUi();
applyEditorSettings();
setWindowFlags(Qt::Popup | Qt::FramelessWindowHint);
setAttribute(Qt::WA_DeleteOnClose);
setFocusPolicy(Qt::StrongFocus);
}
RefactorWidget::~RefactorWidget()
{
}
void RefactorWidget::setupUi()
{
auto *mainLayout = new QVBoxLayout(this);
mainLayout->setContentsMargins(6, 6, 6, 6);
mainLayout->setSpacing(4);
m_statsLabel = new QLabel(this);
m_statsLabel->setAlignment(Qt::AlignLeft);
mainLayout->addWidget(m_statsLabel);
m_leftDocument = QSharedPointer<TextEditor::TextDocument>::create();
m_rightDocument = QSharedPointer<TextEditor::TextDocument>::create();
Qt::Orientation initialOrientation = Settings::quickRefactorSettings().widgetOrientation.value() == 1
? Qt::Vertical : Qt::Horizontal;
m_splitter = new CustomSplitter(initialOrientation, this);
m_splitter->setChildrenCollapsible(false);
m_splitter->setHandleWidth(12);
m_splitter->setStyleSheet("QSplitter::handle { background-color: transparent; }");
m_leftEditor = new TextEditor::TextEditorWidget();
m_leftEditor->setTextDocument(m_leftDocument);
m_leftEditor->setReadOnly(true);
m_leftEditor->setFrameStyle(QFrame::StyledPanel);
m_leftEditor->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_leftEditor->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_leftEditor->setMinimumHeight(100);
m_leftEditor->setMinimumWidth(150);
m_leftEditor->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
m_leftEditor->setTextInteractionFlags(Qt::TextSelectableByMouse | Qt::TextSelectableByKeyboard);
m_rightEditor = new TextEditor::TextEditorWidget();
m_rightEditor->setTextDocument(m_rightDocument);
m_rightEditor->setReadOnly(false);
m_rightEditor->setFrameStyle(QFrame::StyledPanel);
m_rightEditor->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_rightEditor->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
m_rightEditor->setMinimumHeight(100);
m_rightEditor->setMinimumWidth(150);
m_rightEditor->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
m_leftContainer = new QWidget();
m_leftContainer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
auto *leftLayout = new QVBoxLayout(m_leftContainer);
leftLayout->setSpacing(2);
leftLayout->setContentsMargins(0, 0, 0, 0);
auto *originalLabel = new QLabel(tr("◄ Original"), m_leftContainer);
leftLayout->addWidget(originalLabel);
leftLayout->addWidget(m_leftEditor);
auto *rightContainer = new QWidget();
rightContainer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
auto *rightLayout = new QVBoxLayout(rightContainer);
rightLayout->setSpacing(2);
rightLayout->setContentsMargins(0, 0, 0, 0);
auto *refactoredLabel = new QLabel(tr("Refactored ►"), rightContainer);
rightLayout->addWidget(refactoredLabel);
rightLayout->addWidget(m_rightEditor);
m_splitter->addWidget(m_leftContainer);
m_splitter->addWidget(rightContainer);
m_splitter->setStretchFactor(0, 1);
m_splitter->setStretchFactor(1, 1);
mainLayout->addWidget(m_splitter);
connect(m_leftEditor->verticalScrollBar(), &QScrollBar::valueChanged,
this, &RefactorWidget::syncLeftScroll);
connect(m_rightEditor->verticalScrollBar(), &QScrollBar::valueChanged,
this, &RefactorWidget::syncRightScroll);
connect(m_leftEditor->horizontalScrollBar(), &QScrollBar::valueChanged,
this, &RefactorWidget::syncLeftHorizontalScroll);
connect(m_rightEditor->horizontalScrollBar(), &QScrollBar::valueChanged,
this, &RefactorWidget::syncRightHorizontalScroll);
connect(m_rightDocument->document(), &QTextDocument::contentsChanged,
this, &RefactorWidget::onRightEditorTextChanged);
auto *buttonLayout = new QHBoxLayout();
buttonLayout->setContentsMargins(0, 2, 0, 0);
buttonLayout->setSpacing(6);
#ifdef Q_OS_MACOS
m_applyButton = new QPushButton(tr("✓ Apply (⌘+Enter)"), this);
#else
m_applyButton = new QPushButton(tr("✓ Apply (Ctrl+Enter)"), this);
#endif
m_applyButton->setFocusPolicy(Qt::NoFocus);
m_applyButton->setCursor(Qt::PointingHandCursor);
m_applyButton->setMaximumHeight(24);
m_declineButton = new QPushButton(tr("✗ Decline (Esc)"), this);
m_declineButton->setFocusPolicy(Qt::NoFocus);
m_declineButton->setCursor(Qt::PointingHandCursor);
m_declineButton->setMaximumHeight(24);
buttonLayout->addStretch();
buttonLayout->addWidget(m_applyButton);
buttonLayout->addWidget(m_declineButton);
mainLayout->addLayout(buttonLayout);
connect(m_applyButton, &QPushButton::clicked, this, &RefactorWidget::applyRefactoring);
connect(m_declineButton, &QPushButton::clicked, this, &RefactorWidget::declineRefactoring);
}
void RefactorWidget::setDiffContent(const QString &originalText, const QString &refactoredText)
{
setDiffContent(originalText, refactoredText, QString(), QString());
}
void RefactorWidget::setDiffContent(const QString &originalText, const QString &refactoredText,
const QString &contextBefore, const QString &contextAfter)
{
m_originalText = originalText;
m_refactoredText = refactoredText;
m_contextBefore = contextBefore;
m_contextAfter = contextAfter;
m_leftContainer->setVisible(true);
QString leftFullText;
QString rightFullText;
if (!contextBefore.isEmpty()) {
leftFullText = contextBefore + "\n";
rightFullText = contextBefore + "\n";
}
leftFullText += originalText;
rightFullText += refactoredText;
if (!contextAfter.isEmpty()) {
leftFullText += "\n" + contextAfter;
rightFullText += "\n" + contextAfter;
}
m_leftDocument->setPlainText(leftFullText);
m_rightDocument->setPlainText(rightFullText);
applySyntaxHighlighting();
if (!contextBefore.isEmpty() || !contextAfter.isEmpty()) {
dimContextLines(contextBefore, contextAfter);
}
Utils::Differ differ;
m_cachedDiffList = differ.diff(m_originalText, m_refactoredText);
highlightDifferences();
addLineMarkers();
calculateStats();
updateStatsLabel();
updateSizeToContent();
}
void RefactorWidget::highlightDifferences()
{
if (m_cachedDiffList.isEmpty()) {
return;
}
QList<Utils::Diff> leftDiffs;
QList<Utils::Diff> rightDiffs;
Utils::Differ::splitDiffList(m_cachedDiffList, &leftDiffs, &rightDiffs);
int contextBeforeOffset = m_contextBefore.isEmpty() ? 0 : (m_contextBefore.length() + 1);
QColor normalTextColor = Utils::creatorColor(Utils::Theme::TextColorNormal);
QTextCursor leftCursor(m_leftDocument->document());
QTextCharFormat removedFormat;
QColor removedBg = Utils::creatorColor(Utils::Theme::TextColorError);
removedBg.setAlpha(30);
removedFormat.setBackground(removedBg);
removedFormat.setForeground(normalTextColor);
int leftPos = 0;
for (const auto &diff : leftDiffs) {
if (diff.command == Utils::Diff::Delete) {
leftCursor.setPosition(contextBeforeOffset + leftPos);
leftCursor.setPosition(contextBeforeOffset + leftPos + diff.text.length(), QTextCursor::KeepAnchor);
leftCursor.setCharFormat(removedFormat);
}
if (diff.command != Utils::Diff::Insert) {
leftPos += diff.text.length();
}
}
QTextCursor rightCursor(m_rightDocument->document());
QTextCharFormat addedFormat;
QColor addedBg = Utils::creatorColor(Utils::Theme::IconsRunColor);
addedBg.setAlpha(60);
addedFormat.setBackground(addedBg);
addedFormat.setForeground(normalTextColor);
int rightPos = 0;
for (const auto &diff : rightDiffs) {
if (diff.command == Utils::Diff::Insert) {
rightCursor.setPosition(contextBeforeOffset + rightPos);
rightCursor.setPosition(contextBeforeOffset + rightPos + diff.text.length(), QTextCursor::KeepAnchor);
rightCursor.setCharFormat(addedFormat);
}
if (diff.command != Utils::Diff::Delete) {
rightPos += diff.text.length();
}
}
}
void RefactorWidget::dimContextLines(const QString &contextBefore, const QString &contextAfter)
{
QTextCharFormat dimFormat;
dimFormat.setForeground(Utils::creatorColor(Utils::Theme::TextColorDisabled));
auto dimLines = [&](QTextDocument *doc, int lineCount, bool fromStart) {
QTextCursor cursor(doc);
if (!fromStart) {
cursor.movePosition(QTextCursor::End);
}
for (int i = 0; i < lineCount; ++i) {
cursor.movePosition(QTextCursor::StartOfBlock);
cursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
cursor.setCharFormat(dimFormat);
if (fromStart) {
if (!cursor.block().isValid() || !cursor.movePosition(QTextCursor::NextBlock)) {
break;
}
} else {
if (!cursor.movePosition(QTextCursor::PreviousBlock)) {
break;
}
}
}
};
if (!contextBefore.isEmpty()) {
int lines = contextBefore.count('\n') + (contextBefore.endsWith('\n') ? 0 : 1);
dimLines(m_leftDocument->document(), lines, true);
dimLines(m_rightDocument->document(), lines, true);
}
if (!contextAfter.isEmpty()) {
int lines = contextAfter.count('\n') + (contextAfter.endsWith('\n') ? 0 : 1);
dimLines(m_leftDocument->document(), lines, false);
dimLines(m_rightDocument->document(), lines, false);
}
}
QString RefactorWidget::getRefactoredText() const
{
return m_applyText;
}
void RefactorWidget::setRange(const Utils::Text::Range &range)
{
m_range = range;
}
void RefactorWidget::setEditorWidth(int width)
{
m_editorWidth = width;
updateSizeToContent();
}
void RefactorWidget::setApplyCallback(std::function<void(const QString &)> callback)
{
m_applyCallback = callback;
}
void RefactorWidget::setDeclineCallback(std::function<void()> callback)
{
m_declineCallback = callback;
}
void RefactorWidget::applyRefactoring()
{
if (m_isClosing) return;
m_isClosing = true;
if (m_applyCallback) {
m_applyCallback(m_applyText);
}
emit applied();
close();
}
void RefactorWidget::declineRefactoring()
{
if (m_isClosing) return;
m_isClosing = true;
if (m_declineCallback) {
m_declineCallback();
}
emit declined();
close();
}
void RefactorWidget::paintEvent(QPaintEvent *)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
const QColor bgColor = Utils::creatorColor(Utils::Theme::BackgroundColorNormal);
const QColor borderColor = Utils::creatorColor(Utils::Theme::SplitterColor);
painter.fillRect(rect(), bgColor);
painter.setPen(QPen(borderColor, 2));
painter.drawRoundedRect(rect().adjusted(2, 2, -2, -2), 6, 6);
}
bool RefactorWidget::event(QEvent *event)
{
if (event->type() == QEvent::ShortcutOverride) {
auto *keyEvent = static_cast<QKeyEvent *>(event);
if (((keyEvent->key() == Qt::Key_Enter || keyEvent->key() == Qt::Key_Return) &&
keyEvent->modifiers() == Qt::ControlModifier) ||
keyEvent->key() == Qt::Key_Escape) {
event->accept();
return true;
}
}
if (event->type() == QEvent::KeyPress) {
auto *keyEvent = static_cast<QKeyEvent *>(event);
if ((keyEvent->key() == Qt::Key_Enter || keyEvent->key() == Qt::Key_Return) &&
keyEvent->modifiers() == Qt::ControlModifier) {
applyRefactoring();
return true;
}
if (keyEvent->key() == Qt::Key_Escape) {
declineRefactoring();
return true;
}
}
return QWidget::event(event);
}
void RefactorWidget::syncLeftScroll(int value)
{
if (m_syncingScroll) return;
m_syncingScroll = true;
m_rightEditor->verticalScrollBar()->setValue(value);
m_syncingScroll = false;
}
void RefactorWidget::syncRightScroll(int value)
{
if (m_syncingScroll) return;
m_syncingScroll = true;
m_leftEditor->verticalScrollBar()->setValue(value);
m_syncingScroll = false;
}
void RefactorWidget::syncLeftHorizontalScroll(int value)
{
if (m_syncingScroll) return;
m_syncingScroll = true;
m_rightEditor->horizontalScrollBar()->setValue(value);
m_syncingScroll = false;
}
void RefactorWidget::syncRightHorizontalScroll(int value)
{
if (m_syncingScroll) return;
m_syncingScroll = true;
m_leftEditor->horizontalScrollBar()->setValue(value);
m_syncingScroll = false;
}
void RefactorWidget::onRightEditorTextChanged()
{
QString fullText = m_rightDocument->plainText();
int startPos = m_contextBefore.isEmpty() ? 0 : m_contextBefore.length() + 1;
int endPos = m_contextAfter.isEmpty() ? fullText.length() : fullText.length() - m_contextAfter.length() - 1;
m_applyText = fullText.mid(startPos, endPos - startPos);
}
void RefactorWidget::closeEvent(QCloseEvent *event)
{
if (!m_isClosing) {
declineRefactoring();
}
event->accept();
}
void RefactorWidget::calculateStats()
{
DiffStatistics stats;
stats.calculate(m_cachedDiffList);
m_linesAdded = stats.linesAdded();
m_linesRemoved = stats.linesRemoved();
}
void RefactorWidget::updateStatsLabel()
{
DiffStatistics stats;
stats.calculate(m_cachedDiffList);
m_statsLabel->setText("📊 " + stats.formatSummary());
}
void RefactorWidget::applySyntaxHighlighting()
{
if (!m_sourceEditor) {
return;
}
auto *sourceDoc = m_sourceEditor->textDocument();
if (!sourceDoc || !sourceDoc->syntaxHighlighter()) {
return;
}
m_leftDocument->setMimeType(sourceDoc->mimeType());
m_rightDocument->setMimeType(sourceDoc->mimeType());
}
void RefactorWidget::addLineMarkers()
{
if (m_cachedDiffList.isEmpty()) {
return;
}
QList<Utils::Diff> leftDiffs;
QList<Utils::Diff> rightDiffs;
Utils::Differ::splitDiffList(m_cachedDiffList, &leftDiffs, &rightDiffs);
int contextBeforeOffset = m_contextBefore.isEmpty() ? 0 : (m_contextBefore.length() + 1);
QColor removedMarker = Utils::creatorColor(Utils::Theme::TextColorError);
QColor addedMarker = Utils::creatorColor(Utils::Theme::IconsRunColor);
QTextCursor leftCursor(m_leftDocument->document());
int leftPos = 0;
for (const auto &diff : leftDiffs) {
if (diff.command == Utils::Diff::Delete) {
leftCursor.setPosition(contextBeforeOffset + leftPos);
leftCursor.movePosition(QTextCursor::StartOfBlock);
leftCursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
QTextBlockFormat blockFormat;
blockFormat.setBackground(QBrush(removedMarker.lighter(185)));
blockFormat.setLeftMargin(4);
blockFormat.setProperty(QTextFormat::FullWidthSelection, true);
leftCursor.setBlockFormat(blockFormat);
}
if (diff.command != Utils::Diff::Insert) {
leftPos += diff.text.length();
}
}
QTextCursor rightCursor(m_rightDocument->document());
int rightPos = 0;
for (const auto &diff : rightDiffs) {
if (diff.command == Utils::Diff::Insert) {
rightCursor.setPosition(contextBeforeOffset + rightPos);
rightCursor.movePosition(QTextCursor::StartOfBlock);
rightCursor.movePosition(QTextCursor::EndOfBlock, QTextCursor::KeepAnchor);
QTextBlockFormat blockFormat;
blockFormat.setBackground(QBrush(addedMarker.lighter(195)));
blockFormat.setLeftMargin(4);
blockFormat.setProperty(QTextFormat::FullWidthSelection, true);
rightCursor.setBlockFormat(blockFormat);
}
if (diff.command != Utils::Diff::Delete) {
rightPos += diff.text.length();
}
}
}
void RefactorWidget::updateSizeToContent()
{
QFontMetrics fm(m_rightEditor->font());
int charWidth = fm.horizontalAdvance('m');
int lineHeight = fm.height();
int lineCount = m_rightDocument->document()->blockCount();
bool horizontal = m_splitter->orientation() == Qt::Horizontal;
const int minWidth = Settings::quickRefactorSettings().widgetMinWidth();
const int maxWidth = qMin(Settings::quickRefactorSettings().widgetMaxWidth(), m_editorWidth - 40);
const int minHeight = Settings::quickRefactorSettings().widgetMinHeight();
const int maxHeight = Settings::quickRefactorSettings().widgetMaxHeight();
if (horizontal) {
int totalWidth = qBound(minWidth, charWidth * 60 * 2 + 90, maxWidth);
setFixedWidth(totalWidth);
int editorHeight = qBound(minHeight, lineCount * lineHeight, maxHeight);
m_leftEditor->setMinimumHeight(editorHeight);
m_leftEditor->setMaximumHeight(editorHeight);
m_rightEditor->setMinimumHeight(editorHeight);
m_rightEditor->setMaximumHeight(editorHeight);
} else {
int editorWidth = qBound(minWidth, charWidth * 85 + 80, maxWidth);
setFixedWidth(editorWidth);
int editorHeight = qBound(minHeight, lineCount * lineHeight, maxHeight);
m_leftEditor->setMinimumHeight(editorHeight);
m_leftEditor->setMaximumHeight(editorHeight);
m_rightEditor->setMinimumHeight(editorHeight);
m_rightEditor->setMaximumHeight(editorHeight);
}
updateGeometry();
adjustSize();
}
void RefactorWidget::applyEditorSettings()
{
if (!m_sourceEditor || !m_leftEditor || !m_rightEditor) {
return;
}
QFont editorFont = m_sourceEditor->font();
m_leftEditor->setFont(editorFont);
m_rightEditor->setFont(editorFont);
QString labelStyle = QString("color: %1; padding: 2px 4px;")
.arg(Utils::creatorColor(Utils::Theme::TextColorDisabled).name());
for (auto *label : findChildren<QLabel *>()) {
if (label != m_statsLabel) {
QFont labelFont = label->font();
labelFont.setPointSize(qMax(8, editorFont.pointSize() - 2));
label->setFont(labelFont);
label->setStyleSheet(labelStyle);
}
}
QFont statsFont = m_statsLabel->font();
statsFont.setBold(true);
statsFont.setPointSize(qMax(9, editorFont.pointSize() - 1));
m_statsLabel->setFont(statsFont);
m_statsLabel->setStyleSheet(QString(
"color: %1; padding: 4px 6px; background-color: %2; border-radius: 3px;")
.arg(Utils::creatorColor(Utils::Theme::TextColorNormal).name())
.arg(Utils::creatorColor(Utils::Theme::BackgroundColorHover).name()));
updateButtonStyles();
}
void RefactorWidget::updateButtonStyles()
{
if (!m_applyButton || !m_declineButton) {
return;
}
int baseFontSize = m_sourceEditor ? qMax(9, m_sourceEditor->font().pointSize() - 2) : 10;
auto createStyle = [&](const QColor &color, bool bold) {
return QString(
"QPushButton {"
" background-color: %1; color: %2; border: 1px solid %3;"
" border-radius: 3px; padding: 2px 8px; font-size: %4pt;%5"
"}"
"QPushButton:hover { background-color: %6; border: 1px solid %2; }"
"QPushButton:pressed { background-color: %7; }")
.arg(Utils::creatorColor(Utils::Theme::BackgroundColorNormal).name())
.arg(color.name())
.arg(Utils::creatorColor(Utils::Theme::SplitterColor).name())
.arg(baseFontSize)
.arg(bold ? QLatin1StringView(" font-weight: bold;") : QLatin1StringView(""))
.arg(Utils::creatorColor(Utils::Theme::BackgroundColorHover).name())
.arg(Utils::creatorColor(Utils::Theme::BackgroundColorSelected).name());
};
m_applyButton->setStyleSheet(createStyle(Utils::creatorColor(Utils::Theme::TextColorNormal), true));
m_declineButton->setStyleSheet(createStyle(Utils::creatorColor(Utils::Theme::TextColorError), false));
}
} // namespace QodeAssist

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widgets/RefactorWidget.hpp Normal file
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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <QWidget>
#include <QPushButton>
#include <QLabel>
#include <QVBoxLayout>
#include <QKeyEvent>
#include <QEnterEvent>
#include <QSharedPointer>
#include <QSplitter>
#include <QSplitterHandle>
#include <functional>
#include <texteditor/texteditor.h>
#include <utils/textutils.h>
#include <utils/differ.h>
namespace QodeAssist {
class CustomSplitterHandle : public QSplitterHandle
{
Q_OBJECT
public:
explicit CustomSplitterHandle(Qt::Orientation orientation, QSplitter *parent);
protected:
void paintEvent(QPaintEvent *event) override;
void enterEvent(QEnterEvent *event) override;
void leaveEvent(QEvent *event) override;
private:
bool m_hovered = false;
};
class CustomSplitter : public QSplitter
{
Q_OBJECT
public:
explicit CustomSplitter(Qt::Orientation orientation, QWidget *parent = nullptr);
protected:
QSplitterHandle *createHandle() override;
};
class RefactorWidget : public QWidget
{
Q_OBJECT
public:
explicit RefactorWidget(TextEditor::TextEditorWidget *sourceEditor, QWidget *parent = nullptr);
~RefactorWidget() override;
void setDiffContent(const QString &originalText, const QString &refactoredText);
void setDiffContent(const QString &originalText, const QString &refactoredText,
const QString &contextBefore, const QString &contextAfter);
void setApplyText(const QString &text) { m_applyText = text; }
void setRange(const Utils::Text::Range &range);
void setEditorWidth(int width);
QString getRefactoredText() const;
void setApplyCallback(std::function<void(const QString &)> callback);
void setDeclineCallback(std::function<void()> callback);
signals:
void applied();
void declined();
protected:
void paintEvent(QPaintEvent *event) override;
bool event(QEvent *event) override;
void closeEvent(QCloseEvent *event) override;
private slots:
void syncLeftScroll(int value);
void syncRightScroll(int value);
void syncLeftHorizontalScroll(int value);
void syncRightHorizontalScroll(int value);
void onRightEditorTextChanged();
private:
TextEditor::TextEditorWidget *m_sourceEditor;
TextEditor::TextEditorWidget *m_leftEditor;
TextEditor::TextEditorWidget *m_rightEditor;
QSharedPointer<TextEditor::TextDocument> m_leftDocument;
QSharedPointer<TextEditor::TextDocument> m_rightDocument;
QWidget *m_leftContainer;
QSplitter *m_splitter;
QLabel *m_statsLabel;
QPushButton *m_applyButton;
QPushButton *m_declineButton;
QString m_originalText;
QString m_refactoredText;
QString m_applyText;
QString m_contextBefore;
QString m_contextAfter;
Utils::Text::Range m_range;
int m_editorWidth;
bool m_syncingScroll;
bool m_isClosing;
int m_linesAdded;
int m_linesRemoved;
QList<Utils::Diff> m_cachedDiffList;
std::function<void(const QString &)> m_applyCallback;
std::function<void()> m_declineCallback;
void setupUi();
void applyRefactoring();
void declineRefactoring();
void updateSizeToContent();
void highlightDifferences();
void dimContextLines(const QString &contextBefore, const QString &contextAfter);
void calculateStats();
void updateStatsLabel();
void applySyntaxHighlighting();
void addLineMarkers();
void applyEditorSettings();
void updateButtonStyles();
};
} // namespace QodeAssist

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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#include "RefactorWidgetHandler.hpp"
#include "RefactorWidget.hpp"
#include "ContextExtractor.hpp"
#include <QScrollBar>
#include <QTextBlock>
namespace QodeAssist {
RefactorWidgetHandler::RefactorWidgetHandler(QObject *parent)
: QObject(parent)
{
}
RefactorWidgetHandler::~RefactorWidgetHandler()
{
hideRefactorWidget();
}
void RefactorWidgetHandler::showRefactorWidget(
TextEditor::TextEditorWidget *editor,
const QString &originalText,
const QString &refactoredText,
const Utils::Text::Range &range)
{
QString contextBefore = ContextExtractor::extractBefore(editor, range, 3);
QString contextAfter = ContextExtractor::extractAfter(editor, range, 3);
showRefactorWidget(editor, originalText, refactoredText, range, contextBefore, contextAfter);
}
void RefactorWidgetHandler::showRefactorWidget(
TextEditor::TextEditorWidget *editor,
const QString &originalText,
const QString &refactoredText,
const Utils::Text::Range &range,
const QString &contextBefore,
const QString &contextAfter)
{
if (!editor) {
return;
}
hideRefactorWidget();
m_editor = editor;
m_refactorWidget = new RefactorWidget(editor);
m_refactorWidget->setDiffContent(originalText, refactoredText, contextBefore, contextAfter);
m_refactorWidget->setApplyText(refactoredText);
m_refactorWidget->setRange(range);
m_refactorWidget->setEditorWidth(getEditorWidth());
if (m_applyCallback) {
m_refactorWidget->setApplyCallback(m_applyCallback);
}
if (m_declineCallback) {
m_refactorWidget->setDeclineCallback(m_declineCallback);
}
updateWidgetPosition();
m_refactorWidget->show();
m_refactorWidget->raise();
}
void RefactorWidgetHandler::hideRefactorWidget()
{
if (!m_refactorWidget.isNull()) {
m_refactorWidget->close();
m_refactorWidget = nullptr;
}
m_editor = nullptr;
}
void RefactorWidgetHandler::setApplyCallback(std::function<void(const QString &)> callback)
{
m_applyCallback = callback;
}
void RefactorWidgetHandler::setDeclineCallback(std::function<void()> callback)
{
m_declineCallback = callback;
}
void RefactorWidgetHandler::setTextToApply(const QString &text)
{
if (!m_refactorWidget.isNull()) {
m_refactorWidget->setApplyText(text);
}
}
void RefactorWidgetHandler::updateWidgetPosition()
{
if (m_refactorWidget.isNull() || m_editor.isNull()) {
return;
}
QPoint position = calculateWidgetPosition();
m_refactorWidget->move(position);
}
QPoint RefactorWidgetHandler::calculateWidgetPosition()
{
if (m_editor.isNull()) {
return QPoint(0, 0);
}
QTextCursor cursor = m_editor->textCursor();
QRect cursorRect = m_editor->cursorRect(cursor);
QPoint globalPos = m_editor->mapToGlobal(cursorRect.bottomLeft());
globalPos.setY(globalPos.y() + 10);
if (m_refactorWidget) {
QRect widgetRect(globalPos, m_refactorWidget->size());
QRect screenRect = m_editor->screen()->availableGeometry();
if (widgetRect.right() > screenRect.right()) {
globalPos.setX(screenRect.right() - m_refactorWidget->width() - 10);
}
if (widgetRect.bottom() > screenRect.bottom()) {
globalPos.setY(m_editor->mapToGlobal(cursorRect.topLeft()).y()
- m_refactorWidget->height() - 10);
}
if (globalPos.x() < screenRect.left()) {
globalPos.setX(screenRect.left() + 10);
}
if (globalPos.y() < screenRect.top()) {
globalPos.setY(screenRect.top() + 10);
}
}
return globalPos;
}
int RefactorWidgetHandler::getEditorWidth() const
{
return m_editor.isNull() ? 800 : m_editor->viewport()->width();
}
} // namespace QodeAssist

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/*
* Copyright (C) 2025 Petr Mironychev
*
* This file is part of QodeAssist.
*
* QodeAssist 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 3 of the License, or
* (at your option) any later version.
*
* QodeAssist 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 QodeAssist. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <QPointer>
#include <functional>
#include <texteditor/texteditor.h>
#include <utils/textutils.h>
namespace QodeAssist {
class RefactorWidget;
class RefactorWidgetHandler : public QObject
{
Q_OBJECT
public:
explicit RefactorWidgetHandler(QObject *parent = nullptr);
~RefactorWidgetHandler() override;
void showRefactorWidget(
TextEditor::TextEditorWidget *editor,
const QString &originalText,
const QString &refactoredText,
const Utils::Text::Range &range);
void showRefactorWidget(
TextEditor::TextEditorWidget *editor,
const QString &originalText,
const QString &refactoredText,
const Utils::Text::Range &range,
const QString &contextBefore,
const QString &contextAfter);
void hideRefactorWidget();
bool isWidgetVisible() const { return !m_refactorWidget.isNull(); }
void setApplyCallback(std::function<void(const QString &)> callback);
void setDeclineCallback(std::function<void()> callback);
void setTextToApply(const QString &text);
private:
QPointer<TextEditor::TextEditorWidget> m_editor;
QPointer<RefactorWidget> m_refactorWidget;
std::function<void(const QString &)> m_applyCallback;
std::function<void()> m_declineCallback;
void updateWidgetPosition();
QPoint calculateWidgetPosition();
int getEditorWidth() const;
};
} // namespace QodeAssist