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Editor: Use cursor instead of position for animations.

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The cursor position is adjusted when the content of the editor changes
during the animation.

Change-Id: I6792841aca4babd6969a268c5b7cc318d7d4d4b1
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
This commit is contained in:
David Schulz
2016-05-03 10:59:30 +02:00
parent 9ed97cb732
commit c7b7e4d761
1 changed files with 20 additions and 25 deletions
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45
src/plugins/texteditor/texteditor.cpp
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@@ -167,10 +167,8 @@ class TextEditorAnimator : public QObject
public:
TextEditorAnimator(QObject *parent);
inline void setPosition(int position) { m_position = position; }
inline int position() const { return m_position; }
void setData(const QFont &f, const QPalette &pal, const QString &text);
void init(const QTextCursor &cursor, const QFont &f, const QPalette &pal);
inline QTextCursor cursor() const { return m_cursor; }
void draw(QPainter *p, const QPointF &pos);
QRectF rect() const;
@@ -183,14 +181,14 @@ public:
bool isRunning() const;
signals:
void updateRequest(int position, QPointF lastPos, QRectF rect);
void updateRequest(const QTextCursor &cursor, QPointF lastPos, QRectF rect);
private:
void step(qreal v);
QTimeLine m_timeline;
qreal m_value;
int m_position;
QTextCursor m_cursor;
QPointF m_lastDrawPos;
QFont m_font;
QPalette m_palette;
@@ -333,7 +331,7 @@ public:
void updateAnimator(QPointer<TextEditorAnimator> animator, QPainter &painter);
void cancelCurrentAnimations();
void slotSelectionChanged();
void _q_animateUpdate(int position, QPointF lastPos, QRectF rect);
void _q_animateUpdate(const QTextCursor &cursor, QPointF lastPos, QRectF rect);
void updateCodeFoldingVisible();
void reconfigure();
@@ -5803,10 +5801,9 @@ void TextEditorWidgetPrivate::setFindScope(const QTextCursor &start, const QText
}
}
void TextEditorWidgetPrivate::_q_animateUpdate(int position, QPointF lastPos, QRectF rect)
void TextEditorWidgetPrivate::_q_animateUpdate(const QTextCursor &cursor,
QPointF lastPos, QRectF rect)
{
QTextCursor cursor = q->textCursor();
cursor.setPosition(position);
q->viewport()->update(QRectF(q->cursorRect(cursor).topLeft() + rect.topLeft(), rect.size()).toAlignedRect());
if (!lastPos.isNull())
q->viewport()->update(QRectF(lastPos + rect.topLeft(), rect.size()).toAlignedRect());
@@ -5823,11 +5820,12 @@ TextEditorAnimator::TextEditorAnimator(QObject *parent)
m_timeline.start();
}
void TextEditorAnimator::setData(const QFont &f, const QPalette &pal, const QString &text)
void TextEditorAnimator::init(const QTextCursor &cursor, const QFont &f, const QPalette &pal)
{
m_cursor = cursor;
m_font = f;
m_palette = pal;
m_text = text;
m_text = cursor.selectedText();
QFontMetrics fm(m_font);
m_size = QSizeF(fm.width(m_text), fm.height());
}
@@ -5866,7 +5864,7 @@ void TextEditorAnimator::step(qreal v)
QRectF before = rect();
m_value = v;
QRectF after = rect();
emit updateRequest(m_position, m_lastDrawPos, before.united(after));
emit updateRequest(m_cursor, m_lastDrawPos, before.united(after));
}
void TextEditorAnimator::finish()
@@ -5963,13 +5961,14 @@ void TextEditorWidgetPrivate::_q_matchParentheses()
if (animatePosition >= 0) {
cancelCurrentAnimations();// one animation is enough
m_bracketsAnimator = new TextEditorAnimator(this);
m_bracketsAnimator->setPosition(animatePosition);
QPalette pal;
pal.setBrush(QPalette::Text, matchFormat.foreground());
pal.setBrush(QPalette::Base, matchFormat.background());
m_bracketsAnimator->setData(
q->font(), pal, q->document()->characterAt(m_bracketsAnimator->position()));
QTextCursor cursor = q->textCursor();
cursor.setPosition(animatePosition + 1);
cursor.setPosition(animatePosition, QTextCursor::KeepAnchor);
m_bracketsAnimator = new TextEditorAnimator(this);
m_bracketsAnimator->init(cursor, q->font(), pal);
connect(m_bracketsAnimator.data(), &TextEditorAnimator::updateRequest,
this, &TextEditorWidgetPrivate::_q_animateUpdate);
}
@@ -6060,12 +6059,11 @@ void TextEditorWidgetPrivate::autocompleterHighlight(const QTextCursor &cursor)
}
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());
m_autocompleteAnimator = new TextEditorAnimator(this);
m_autocompleteAnimator->init(cursor, q->font(), pal);
connect(m_autocompleteAnimator.data(), &TextEditorAnimator::updateRequest,
this, &TextEditorWidgetPrivate::_q_animateUpdate);
}
@@ -6075,11 +6073,8 @@ void TextEditorWidgetPrivate::autocompleterHighlight(const QTextCursor &cursor)
void TextEditorWidgetPrivate::updateAnimator(QPointer<TextEditorAnimator> animator,
QPainter &painter)
{
if (animator && animator->isRunning()) {
QTextCursor cursor = q->textCursor();
cursor.setPosition(animator->position());
animator->draw(&painter, q->cursorRect(cursor).topLeft());
}
if (animator && animator->isRunning())
animator->draw(&painter, q->cursorRect(animator->cursor()).topLeft());
}
void TextEditorWidgetPrivate::cancelCurrentAnimations()