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Editor: Highlight automatically inserted text

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Keep the highlight as long as the cursor is directly behind the closing
character and the editor is the focus widget.

Change-Id: Ic1d4bac263e9d2f395791dad7ecdceb9d69635c5
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>
This commit is contained in:
David Schulz
2016-06-01 10:19:59 +02:00
committed by David Schulz
parent 6a2e9a1f06
commit 9bacb3e33e
7 changed files with 79 additions and 16 deletions
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71
src/plugins/texteditor/texteditor.cpp
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@@ -329,7 +329,7 @@ public:
// parentheses matcher
void _q_matchParentheses();
void _q_highlightBlocks();
void _q_autocompleterHighlight(const QTextCursor &cursor = QTextCursor());
void autocompleterHighlight(const QTextCursor &cursor = QTextCursor());
void updateAnimator(QPointer<TextEditorAnimator> animator, QPainter &painter);
void cancelCurrentAnimations();
void slotSelectionChanged();
@@ -452,8 +452,14 @@ public:
QList<BaseHoverHandler *> m_hoverHandlers; // Not owned
QPointer<TextEditorAnimator> m_bracketsAnimator;
// Animation and highlighting of auto completed text
QPointer<TextEditorAnimator> m_autocompleteAnimator;
bool m_animateAutoComplete = true;
bool m_highlightAutoComplete = true;
bool m_keepAutoCompletionHighlight = false;
QTextCursor m_autoCompleteHighlightPos;
int m_cursorBlockNumber;
int m_blockCount;
@@ -629,6 +635,7 @@ static const char kTextBlockMimeType[] = "application/vnd.qtcreator.blocktext";
Id TextEditorWidget::SnippetPlaceholderSelection("TextEdit.SnippetPlaceHolderSelection");
Id TextEditorWidget::CurrentLineSelection("TextEdit.CurrentLineSelection");
Id TextEditorWidget::ParenthesesMatchingSelection("TextEdit.ParenthesesMatchingSelection");
Id TextEditorWidget::AutoCompleteSelection("TextEdit.AutoCompleteSelection");
Id TextEditorWidget::CodeWarningsSelection("TextEdit.CodeWarningsSelection");
Id TextEditorWidget::CodeSemanticsSelection("TextEdit.CodeSemanticsSelection");
Id TextEditorWidget::UndefinedSymbolSelection("TextEdit.UndefinedSymbolSelection");
@@ -2156,12 +2163,12 @@ void TextEditorWidget::keyPressEvent(QKeyEvent *e)
d->m_document->autoIndent(ensureVisible);
else if (!previousIndentationString.isEmpty())
ensureVisible.insertText(previousIndentationString);
if (d->m_animateAutoComplete) {
if (d->m_animateAutoComplete || d->m_highlightAutoComplete) {
QTextCursor tc = ensureVisible;
tc.movePosition(QTextCursor::EndOfBlock);
tc.movePosition(QTextCursor::StartOfBlock, QTextCursor::KeepAnchor);
tc.movePosition(QTextCursor::NextWord, QTextCursor::KeepAnchor);
d->_q_autocompleterHighlight(tc);
d->autocompleterHighlight(tc);
}
}
setTextCursor(ensureVisible);
@@ -2422,9 +2429,10 @@ void TextEditorWidget::keyPressEvent(QKeyEvent *e)
if (!autoText.isEmpty()) {
int pos = cursor.position();
cursor.insertText(autoText);
cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor);
d->autocompleterHighlight(cursor);
//Select the inserted text, to be able to re-indent the inserted text
cursor.setPosition(pos, QTextCursor::KeepAnchor);
d->_q_autocompleterHighlight(cursor);
}
if (!electricChar.isNull() && d->m_autoCompleter->contextAllowsElectricCharacters(cursor))
d->m_document->autoIndent(cursor, electricChar);
@@ -4705,6 +4713,17 @@ void TextEditorWidgetPrivate::updateHighlights()
}
}
if (m_highlightAutoComplete && !m_autoCompleteHighlightPos.isNull()) {
QTimer::singleShot(0, this, [this](){
if ((!m_keepAutoCompletionHighlight && !q->hasFocus())
|| m_autoCompleteHighlightPos != q->textCursor()) {
q->setExtraSelections(TextEditorWidget::AutoCompleteSelection,
QList<QTextEdit::ExtraSelection>()); // clear
m_autoCompleteHighlightPos = QTextCursor();
}
});
}
updateCurrentLineHighlight();
if (m_displaySettings.m_highlightBlocks) {
@@ -6026,23 +6045,38 @@ void TextEditorWidgetPrivate::_q_highlightBlocks()
}
}
void TextEditorWidgetPrivate::_q_autocompleterHighlight(const QTextCursor &cursor)
void TextEditorWidgetPrivate::autocompleterHighlight(const QTextCursor &cursor)
{
if (!m_animateAutoComplete || q->isReadOnly() || !cursor.hasSelection())
QList<QTextEdit::ExtraSelection> extraSelections;
if ((!m_animateAutoComplete && !m_highlightAutoComplete)
|| q->isReadOnly() || !cursor.hasSelection()) {
q->setExtraSelections(TextEditorWidget::AutoCompleteSelection, extraSelections); // clear
return;
}
const QTextCharFormat &matchFormat
= q->textDocument()->fontSettings().toTextCharFormat(C_AUTOCOMPLETE);
cancelCurrentAnimations();// one animation is enough
m_autocompleteAnimator = new TextEditorAnimator(this);
m_autocompleteAnimator->setPosition(cursor.selectionStart());
QPalette pal;
pal.setBrush(QPalette::Text, matchFormat.foreground());
pal.setBrush(QPalette::Base, matchFormat.background());
m_autocompleteAnimator->setData(q->font(), pal, cursor.selectedText());
connect(m_autocompleteAnimator.data(), &TextEditorAnimator::updateRequest,
this, &TextEditorWidgetPrivate::_q_animateUpdate);
if (m_highlightAutoComplete) {
QTextEdit::ExtraSelection sel;
sel.cursor = cursor;
sel.format.setBackground(matchFormat.background());
extraSelections.append(sel);
m_autoCompleteHighlightPos = cursor;
m_autoCompleteHighlightPos.movePosition(QTextCursor::PreviousCharacter);
}
if (m_animateAutoComplete) {
cancelCurrentAnimations();// one animation is enough
m_autocompleteAnimator = new TextEditorAnimator(this);
m_autocompleteAnimator->setPosition(cursor.selectionStart());
QPalette pal;
pal.setBrush(QPalette::Text, matchFormat.foreground());
pal.setBrush(QPalette::Base, matchFormat.background());
m_autocompleteAnimator->setData(q->font(), pal, cursor.selectedText());
connect(m_autocompleteAnimator.data(), &TextEditorAnimator::updateRequest,
this, &TextEditorWidgetPrivate::_q_animateUpdate);
}
q->setExtraSelections(TextEditorWidget::AutoCompleteSelection, extraSelections);
}
void TextEditorWidgetPrivate::updateAnimator(QPointer<TextEditorAnimator> animator,
@@ -6089,6 +6123,7 @@ void TextEditorWidget::focusOutEvent(QFocusEvent *e)
QPlainTextEdit::focusOutEvent(e);
if (viewport()->cursor().shape() == Qt::BlankCursor)
viewport()->setCursor(Qt::IBeamCursor);
d->updateHighlights();
}
@@ -6542,6 +6577,7 @@ void TextEditorWidget::setCompletionSettings(const CompletionSettings &completio
d->m_autoCompleter->setAutoInsertQuotesEnabled(completionSettings.m_autoInsertQuotes);
d->m_autoCompleter->setSurroundWithQuotesEnabled(completionSettings.m_surroundingAutoQuotes);
d->m_animateAutoComplete = completionSettings.m_animateAutoComplete;
d->m_highlightAutoComplete = completionSettings.m_highlightAutoComplete;
}
void TextEditorWidget::setExtraEncodingSettings(const ExtraEncodingSettings &extraEncodingSettings)
@@ -7003,6 +7039,11 @@ void TextEditorWidget::insertExtraToolBarWidget(TextEditorWidget::Side side,
d->m_toolBar->insertWidget(d->m_toolBar->actions().first(), widget);
}
void TextEditorWidget::keepAutoCompletionHighlight(bool keepHighlight)
{
d->m_keepAutoCompletionHighlight = keepHighlight;
}
int BaseTextEditor::currentLine() const
{
return editorWidget()->textCursor().blockNumber() + 1;