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Diffstat (limited to 'src/libs/3rdparty/syntax-highlighting/examples/codeeditor.cpp')
-rw-r--r--src/libs/3rdparty/syntax-highlighting/examples/codeeditor.cpp358
1 files changed, 0 insertions, 358 deletions
diff --git a/src/libs/3rdparty/syntax-highlighting/examples/codeeditor.cpp b/src/libs/3rdparty/syntax-highlighting/examples/codeeditor.cpp
deleted file mode 100644
index 88f315462d..0000000000
--- a/src/libs/3rdparty/syntax-highlighting/examples/codeeditor.cpp
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
- Copyright (C) 2016 Volker Krause <vkrause@kde.org>
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be included
- in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
- IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
- CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
- TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
- SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-*/
-
-#include "codeeditor.h"
-
-#include <definition.h>
-#include <foldingregion.h>
-#include <syntaxhighlighter.h>
-#include <theme.h>
-
-#include <QApplication>
-#include <QDebug>
-#include <QFile>
-#include <QFileDialog>
-#include <QFontDatabase>
-#include <QMenu>
-#include <QPainter>
-#include <QPalette>
-
-class CodeEditorSidebar : public QWidget
-{
- Q_OBJECT
-public:
- explicit CodeEditorSidebar(CodeEditor *editor);
- QSize sizeHint() const Q_DECL_OVERRIDE;
-
-protected:
- void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
- void mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
-
-private:
- CodeEditor *m_codeEditor;
-};
-
-CodeEditorSidebar::CodeEditorSidebar(CodeEditor *editor) :
- QWidget(editor),
- m_codeEditor(editor)
-{
-}
-
-QSize CodeEditorSidebar::sizeHint() const
-{
- return QSize(m_codeEditor->sidebarWidth(), 0);
-}
-
-void CodeEditorSidebar::paintEvent(QPaintEvent *event)
-{
- m_codeEditor->sidebarPaintEvent(event);
-}
-
-void CodeEditorSidebar::mouseReleaseEvent(QMouseEvent *event)
-{
- if (event->x() >= width() - m_codeEditor->fontMetrics().lineSpacing()) {
- auto block = m_codeEditor->blockAtPosition(event->y());
- if (!block.isValid() || !m_codeEditor->isFoldable(block))
- return;
- m_codeEditor->toggleFold(block);
- }
- QWidget::mouseReleaseEvent(event);
-}
-
-
-CodeEditor::CodeEditor(QWidget *parent) :
- QPlainTextEdit(parent),
- m_highlighter(new KSyntaxHighlighting::SyntaxHighlighter(document())),
- m_sideBar(new CodeEditorSidebar(this))
-{
- setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont));
-
- setTheme((palette().color(QPalette::Base).lightness() < 128)
- ? m_repository.defaultTheme(KSyntaxHighlighting::Repository::DarkTheme)
- : m_repository.defaultTheme(KSyntaxHighlighting::Repository::LightTheme));
-
- connect(this, &QPlainTextEdit::blockCountChanged, this, &CodeEditor::updateSidebarGeometry);
- connect(this, &QPlainTextEdit::updateRequest, this, &CodeEditor::updateSidebarArea);
- connect(this, &QPlainTextEdit::cursorPositionChanged, this, &CodeEditor::highlightCurrentLine);
-
- updateSidebarGeometry();
- highlightCurrentLine();
-}
-
-CodeEditor::~CodeEditor()
-{
-}
-
-void CodeEditor::openFile(const QString& fileName)
-{
- QFile f(fileName);
- if (!f.open(QFile::ReadOnly)) {
- qWarning() << "Failed to open" << fileName << ":" << f.errorString();
- return;
- }
-
- clear();
-
- const auto def = m_repository.definitionForFileName(fileName);
- m_highlighter->setDefinition(def);
-
- setWindowTitle(fileName);
- setPlainText(QString::fromUtf8(f.readAll()));
-}
-
-void CodeEditor::contextMenuEvent(QContextMenuEvent *event)
-{
- auto menu = createStandardContextMenu(event->pos());
- menu->addSeparator();
- auto openAction = menu->addAction(QStringLiteral("Open File..."));
- connect(openAction, &QAction::triggered, this, [this]() {
- const auto fileName = QFileDialog::getOpenFileName(this, QStringLiteral("Open File"));
- if (!fileName.isEmpty())
- openFile(fileName);
- });
-
- // syntax selection
- auto hlActionGroup = new QActionGroup(menu);
- hlActionGroup->setExclusive(true);
- auto hlGroupMenu = menu->addMenu(QStringLiteral("Syntax"));
- QMenu *hlSubMenu = hlGroupMenu;
- QString currentGroup;
- foreach (const auto &def, m_repository.definitions()) {
- if (def.isHidden())
- continue;
- if (currentGroup != def.section()) {
- currentGroup = def.section();
- hlSubMenu = hlGroupMenu->addMenu(def.translatedSection());
- }
-
- Q_ASSERT(hlSubMenu);
- auto action = hlSubMenu->addAction(def.translatedName());
- action->setCheckable(true);
- action->setData(def.name());
- hlActionGroup->addAction(action);
- if (def.name() == m_highlighter->definition().name())
- action->setChecked(true);
- }
- connect(hlActionGroup, &QActionGroup::triggered, this, [this](QAction *action) {
- const auto defName = action->data().toString();
- const auto def = m_repository.definitionForName(defName);
- m_highlighter->setDefinition(def);
- });
-
- // theme selection
- auto themeGroup = new QActionGroup(menu);
- themeGroup->setExclusive(true);
- auto themeMenu = menu->addMenu(QStringLiteral("Theme"));
- foreach (const auto &theme, m_repository.themes()) {
- auto action = themeMenu->addAction(theme.translatedName());
- action->setCheckable(true);
- action->setData(theme.name());
- themeGroup->addAction(action);
- if (theme.name() == m_highlighter->theme().name())
- action->setChecked(true);
- }
- connect(themeGroup, &QActionGroup::triggered, this, [this](QAction *action) {
- const auto themeName = action->data().toString();
- const auto theme = m_repository.theme(themeName);
- setTheme(theme);
- });
-
- menu->exec(event->globalPos());
- delete menu;
-}
-
-void CodeEditor::resizeEvent(QResizeEvent *event)
-{
- QPlainTextEdit::resizeEvent(event);
- updateSidebarGeometry();
-}
-
-void CodeEditor::setTheme(const KSyntaxHighlighting::Theme &theme)
-{
- auto pal = qApp->palette();
- if (theme.isValid()) {
- pal.setColor(QPalette::Base, theme.editorColor(KSyntaxHighlighting::Theme::BackgroundColor));
- pal.setColor(QPalette::Text, theme.textColor(KSyntaxHighlighting::Theme::Normal));
- pal.setColor(QPalette::Highlight, theme.editorColor(KSyntaxHighlighting::Theme::TextSelection));
- }
- setPalette(pal);
-
- m_highlighter->setTheme(theme);
- m_highlighter->rehighlight();
- highlightCurrentLine();
-}
-
-int CodeEditor::sidebarWidth() const
-{
- int digits = 1;
- auto count = blockCount();
- while (count >= 10) {
- ++digits;
- count /= 10;
- }
- return 4 + fontMetrics().width(QLatin1Char('9')) * digits + fontMetrics().lineSpacing();
-}
-
-void CodeEditor::sidebarPaintEvent(QPaintEvent *event)
-{
- QPainter painter(m_sideBar);
- painter.fillRect(event->rect(), m_highlighter->theme().editorColor(KSyntaxHighlighting::Theme::IconBorder));
-
- auto block = firstVisibleBlock();
- auto blockNumber = block.blockNumber();
- int top = blockBoundingGeometry(block).translated(contentOffset()).top();
- int bottom = top + blockBoundingRect(block).height();
- const int currentBlockNumber = textCursor().blockNumber();
-
- const auto foldingMarkerSize = fontMetrics().lineSpacing();
-
- while (block.isValid() && top <= event->rect().bottom()) {
- if (block.isVisible() && bottom >= event->rect().top()) {
- const auto number = QString::number(blockNumber + 1);
- painter.setPen(m_highlighter->theme().editorColor(
- (blockNumber == currentBlockNumber) ? KSyntaxHighlighting::Theme::CurrentLineNumber
- : KSyntaxHighlighting::Theme::LineNumbers));
- painter.drawText(0, top, m_sideBar->width() - 2 - foldingMarkerSize, fontMetrics().height(), Qt::AlignRight, number);
- }
-
- // folding marker
- if (block.isVisible() && isFoldable(block)) {
- QPolygonF polygon;
- if (isFolded(block)) {
- polygon << QPointF(foldingMarkerSize * 0.4, foldingMarkerSize * 0.25);
- polygon << QPointF(foldingMarkerSize * 0.4, foldingMarkerSize * 0.75);
- polygon << QPointF(foldingMarkerSize * 0.8, foldingMarkerSize * 0.5);
- } else {
- polygon << QPointF(foldingMarkerSize * 0.25, foldingMarkerSize * 0.4);
- polygon << QPointF(foldingMarkerSize * 0.75, foldingMarkerSize * 0.4);
- polygon << QPointF(foldingMarkerSize * 0.5, foldingMarkerSize * 0.8);
- }
- painter.save();
- painter.setRenderHint(QPainter::Antialiasing);
- painter.setPen(Qt::NoPen);
- painter.setBrush(QColor(m_highlighter->theme().editorColor(KSyntaxHighlighting::Theme::CodeFolding)));
- painter.translate(m_sideBar->width() - foldingMarkerSize, top);
- painter.drawPolygon(polygon);
- painter.restore();
- }
-
- block = block.next();
- top = bottom;
- bottom = top + blockBoundingRect(block).height();
- ++blockNumber;
- }
-}
-
-void CodeEditor::updateSidebarGeometry()
-{
- setViewportMargins(sidebarWidth(), 0, 0, 0);
- const auto r = contentsRect();
- m_sideBar->setGeometry(QRect(r.left(), r.top(), sidebarWidth(), r.height()));
-}
-
-void CodeEditor::updateSidebarArea(const QRect& rect, int dy)
-{
- if (dy)
- m_sideBar->scroll(0, dy);
- else
- m_sideBar->update(0, rect.y(), m_sideBar->width(), rect.height());
-}
-
-void CodeEditor::highlightCurrentLine()
-{
- QTextEdit::ExtraSelection selection;
- selection.format.setBackground(QColor(m_highlighter->theme().editorColor(KSyntaxHighlighting::Theme::CurrentLine)));
- selection.format.setProperty(QTextFormat::FullWidthSelection, true);
- selection.cursor = textCursor();
- selection.cursor.clearSelection();
-
- QList<QTextEdit::ExtraSelection> extraSelections;
- extraSelections.append(selection);
- setExtraSelections(extraSelections);
-}
-
-QTextBlock CodeEditor::blockAtPosition(int y) const
-{
- auto block = firstVisibleBlock();
- if (!block.isValid())
- return QTextBlock();
-
- int top = blockBoundingGeometry(block).translated(contentOffset()).top();
- int bottom = top + blockBoundingRect(block).height();
- do {
- if (top <= y && y <= bottom)
- return block;
- block = block.next();
- top = bottom;
- bottom = top + blockBoundingRect(block).height();
- } while (block.isValid());
- return QTextBlock();
-}
-
-bool CodeEditor::isFoldable(const QTextBlock &block) const
-{
- return m_highlighter->startsFoldingRegion(block);
-}
-
-bool CodeEditor::isFolded(const QTextBlock &block) const
-{
- if (!block.isValid())
- return false;
- const auto nextBlock = block.next();
- if (!nextBlock.isValid())
- return false;
- return !nextBlock.isVisible();
-}
-
-void CodeEditor::toggleFold(const QTextBlock &startBlock)
-{
- // we also want to fold the last line of the region, therefore the ".next()"
- const auto endBlock = m_highlighter->findFoldingRegionEnd(startBlock).next();
-
- if (isFolded(startBlock)) {
- // unfold
- auto block = startBlock.next();
- while (block.isValid() && !block.isVisible()) {
- block.setVisible(true);
- block.setLineCount(block.layout()->lineCount());
- block = block.next();
- }
-
- } else {
- // fold
- auto block = startBlock.next();
- while (block.isValid() && block != endBlock) {
- block.setVisible(false);
- block.setLineCount(0);
- block = block.next();
- }
- }
-
- // redraw document
- document()->markContentsDirty(startBlock.position(), endBlock.position() - startBlock.position() + 1);
-
- // update scrollbars
- emit document()->documentLayout()->documentSizeChanged(document()->documentLayout()->documentSize());
-}
-
-#include "codeeditor.moc"
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