diff options
Diffstat (limited to 'src/gui/widgets/qplaintextedit.cpp')
| -rw-r--r-- | src/gui/widgets/qplaintextedit.cpp | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/src/gui/widgets/qplaintextedit.cpp b/src/gui/widgets/qplaintextedit.cpp index c2ef5e4..7d9d2b5 100644 --- a/src/gui/widgets/qplaintextedit.cpp +++ b/src/gui/widgets/qplaintextedit.cpp @@ -66,6 +66,8 @@ #include <qtexttable.h> #include <qvariant.h> +#include <qstandardgestures.h> + #include <qinputcontext.h> #ifndef QT_NO_TEXTEDIT @@ -255,7 +257,7 @@ QPlainTextDocumentLayoutPrivate *QPlainTextDocumentLayout::priv() const */ void QPlainTextDocumentLayout::requestUpdate() { - emit update(QRectF(0., -4., 1000000000., 1000000000.)); + emit update(QRectF(0., -document()->documentMargin(), 1000000000., 1000000000.)); } @@ -350,8 +352,7 @@ void QPlainTextDocumentLayout::documentChanged(int from, int /*charsRemoved*/, i } if (!d->blockUpdate) - emit update(); // optimization potential - + emit update(QRectF(0., -doc->documentMargin(), 1000000000., 1000000000.)); // optimization potential } @@ -732,6 +733,9 @@ QPlainTextEditPrivate::QPlainTextEditPrivate() backgroundVisible = false; centerOnScroll = false; inDrag = false; +#ifdef Q_WS_WIN + singleFingerPanEnabled = true; +#endif } @@ -787,6 +791,9 @@ void QPlainTextEditPrivate::init(const QString &txt) #ifndef QT_NO_CURSOR viewport->setCursor(Qt::IBeamCursor); #endif + originalOffsetY = 0; + panGesture = new QPanGesture(q); + QObject::connect(panGesture, SIGNAL(triggered()), q, SLOT(_q_gestureTriggered())); } void QPlainTextEditPrivate::_q_repaintContents(const QRectF &contentsRect) @@ -2915,6 +2922,30 @@ QAbstractTextDocumentLayout::PaintContext QPlainTextEdit::getPaintContext() cons (\a available is true) or unavailable (\a available is false). */ +void QPlainTextEditPrivate::_q_gestureTriggered() +{ + Q_Q(QPlainTextEdit); + QPanGesture *g = qobject_cast<QPanGesture*>(q->sender()); + if (!g) + return; + QScrollBar *hBar = q->horizontalScrollBar(); + QScrollBar *vBar = q->verticalScrollBar(); + if (g->state() == Qt::GestureStarted) + originalOffsetY = vBar->value(); + QSize totalOffset = g->totalOffset(); + if (!totalOffset.isNull()) { + if (QApplication::isRightToLeft()) + totalOffset.rwidth() *= -1; + // QPlainTextEdit scrolls by lines only in vertical direction + QFontMetrics fm(q->document()->defaultFont()); + int lineHeight = fm.height(); + int newX = hBar->value() - g->lastOffset().width(); + int newY = originalOffsetY - totalOffset.height()/lineHeight; + hbar->setValue(newX); + vbar->setValue(newY); + } +} + QT_END_NAMESPACE #include "moc_qplaintextedit.cpp" |