From 7b18c792d0575901d403e475472b9632280f54e7 Mon Sep 17 00:00:00 2001 From: Andrew den Exter Date: Tue, 12 Mar 2013 16:04:54 +1000 Subject: Fix jump and property changes on first move when dragging a Flickable. Fixes a regression whereby on the first mouse move the contentItem was moved the total distance from the touch point to where the drag distance was exceeded. For large drag thresholds this causes a noticeable jump. Task-number: QTBUG-30032 (cherry picked from qtquick1 3a80424aeae19e838be03aa12a5243911ec3f020) Change-Id: I92c119d27dc2e22203484f9ada5978697d171957 Reviewed-by: Martin Jones Reviewed-by: Alan Alpert (Personal) <416365416c@gmail.com> --- src/declarative/graphicsitems/qdeclarativeflickable.cpp | 8 ++++---- .../qdeclarativeflickable/tst_qdeclarativeflickable.cpp | 6 ++++++ .../qdeclarativemousearea/tst_qdeclarativemousearea.cpp | 4 ++-- 3 files changed, 12 insertions(+), 6 deletions(-) diff --git a/src/declarative/graphicsitems/qdeclarativeflickable.cpp b/src/declarative/graphicsitems/qdeclarativeflickable.cpp index 3edc62d..f05bc60 100644 --- a/src/declarative/graphicsitems/qdeclarativeflickable.cpp +++ b/src/declarative/graphicsitems/qdeclarativeflickable.cpp @@ -788,9 +788,9 @@ void QDeclarativeFlickablePrivate::handleMouseMoveEvent(QGraphicsSceneMouseEvent if (q->yflick()) { int dy = int(event->pos().y() - pressPos.y()); - if (vData.dragStartOffset == 0) - vData.dragStartOffset = dy; if (qAbs(dy) > QApplication::startDragDistance() || QDeclarativeItemPrivate::elapsed(pressTime) > 200) { + if (!vMoved) + vData.dragStartOffset = dy; qreal newY = dy + vData.pressPos - vData.dragStartOffset; const qreal minY = vData.dragMinBound; const qreal maxY = vData.dragMaxBound; @@ -817,9 +817,9 @@ void QDeclarativeFlickablePrivate::handleMouseMoveEvent(QGraphicsSceneMouseEvent if (q->xflick()) { int dx = int(event->pos().x() - pressPos.x()); - if (hData.dragStartOffset == 0) - hData.dragStartOffset = dx; if (qAbs(dx) > QApplication::startDragDistance() || QDeclarativeItemPrivate::elapsed(pressTime) > 200) { + if (!hMoved) + hData.dragStartOffset = dx; qreal newX = dx + hData.pressPos - hData.dragStartOffset; const qreal minX = hData.dragMinBound; const qreal maxX = hData.dragMaxBound; diff --git a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp index 01ab415..549d282 100644 --- a/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp +++ b/tests/auto/declarative/qdeclarativeflickable/tst_qdeclarativeflickable.cpp @@ -625,6 +625,9 @@ void tst_qdeclarativeflickable::nestedStopAtBounds() axis += invert ? threshold : -threshold; moveEvent.setScenePos(position); QApplication::sendEvent(view.scene(), &moveEvent); + axis += invert ? threshold : -threshold; + moveEvent.setScenePos(position); + QApplication::sendEvent(view.scene(), &moveEvent); QVERIFY(outer->contentX() != 50 || outer->contentY() != 50); QVERIFY((inner->contentX() == 0 || inner->contentX() == 100) && (inner->contentY() == 0 || inner->contentY() == 100)); @@ -643,6 +646,9 @@ void tst_qdeclarativeflickable::nestedStopAtBounds() axis += invert ? -threshold : threshold; moveEvent.setScenePos(position); QApplication::sendEvent(view.scene(), &moveEvent); + axis += invert ? -threshold : threshold; + moveEvent.setScenePos(position); + QApplication::sendEvent(view.scene(), &moveEvent); QVERIFY(outer->contentX() == 50 && outer->contentY() == 50); QVERIFY((inner->contentX() != 0 && inner->contentX() != 100) || (inner->contentY() != 0 && inner->contentY() != 100)); diff --git a/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp b/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp index 9b4123f..41dcc81 100644 --- a/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp +++ b/tests/auto/declarative/qdeclarativemousearea/tst_qdeclarativemousearea.cpp @@ -602,8 +602,8 @@ void tst_QDeclarativeMouseArea::preventStealing() QVERIFY(!mouseArea->pressed()); // Flickable content should have moved. - QCOMPARE(flickable->contentX(), 20.); - QCOMPARE(flickable->contentY(), 20.); + QCOMPARE(flickable->contentX(), 10.); + QCOMPARE(flickable->contentY(), 10.); QTest::mouseRelease(canvas->viewport(), Qt::LeftButton, 0, canvas->mapFromScene(QPoint(50, 50))); -- cgit v0.12