diff options
author | Mitch Curtis <mitch.curtis@qt.io> | 2018-03-15 09:53:48 +0100 |
---|---|---|
committer | J-P Nurmi <jpnurmi@qt.io> | 2018-03-22 20:41:35 +0000 |
commit | 1abc7fcbabcc5a89ceaaf69173d077e22ed2d658 (patch) | |
tree | bd8709695ede60b257adac02aa9c3f835b0d73af /src/quicktemplates2/qquickpopupanchors.cpp | |
parent | ffc64f07ade1d3c80e7d20e4f73210cca2b1181a (diff) |
Add anchors property to Popup to allow centering in parent/window
Currently, users must manually position their Popup using x and y
bindings:
Popup {
x: (parent.width - width) / 2
y: (parent.height - height) / 2
}
This patch adds an anchors property so that you can do this instead:
Popup {
anchors.centerIn: parent
}
It's also possible to conveniently center within the window from
anywhere within the scene (106e7b63 also documents an alternative way
of doing this using Overlay):
Window {
id: window
Pane {
Popup {
anchors.centerIn: window
}
}
}
QQuickAnchors were never used with Popup, because we cannot use the
QQuickAnchors implementation as-is, as the visual QQuickItem parent
is not the actual parent item of QQuickPopupItem.
Currently just centerIn is supported, as that's the most common
use case.
[ChangeLog][Controls][Popup] Added anchors.centerIn to Popup to allow
a covenient way of centering a popup.
Task-number: QTBUG-60354
Change-Id: Ia030f812df9da646fea8f373ef6199a21205ffbd
Reviewed-by: J-P Nurmi <jpnurmi@qt.io>
Diffstat (limited to 'src/quicktemplates2/qquickpopupanchors.cpp')
-rw-r--r-- | src/quicktemplates2/qquickpopupanchors.cpp | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/quicktemplates2/qquickpopupanchors.cpp b/src/quicktemplates2/qquickpopupanchors.cpp new file mode 100644 index 00000000..1311a322 --- /dev/null +++ b/src/quicktemplates2/qquickpopupanchors.cpp @@ -0,0 +1,90 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquickpopupanchors_p.h" +#include "qquickpopupanchors_p_p.h" +#include "qquickpopuppositioner_p_p.h" + +#include <QtQuick/qquickwindow.h> + +QT_BEGIN_NAMESPACE + +QQuickPopupAnchorsPrivate::QQuickPopupAnchorsPrivate(QQuickPopupPositioner *positioner) + : positioner(positioner) +{ +} + +QQuickPopupAnchorsPrivate::~QQuickPopupAnchorsPrivate() +{ +} + +QQuickPopupAnchors::QQuickPopupAnchors(QQuickPopupPositioner *positioner, QObject *parent) + : QObject(*(new QQuickPopupAnchorsPrivate(positioner)), parent) +{ +} + +QQuickPopupAnchors::QQuickPopupAnchors(QQuickPopupAnchorsPrivate &dd, QObject *parent) + : QObject(dd, parent) +{ +} + +QQuickPopupAnchors::~QQuickPopupAnchors() +{ +} + +QQuickItem *QQuickPopupAnchors::centerIn() const +{ + Q_D(const QQuickPopupAnchors); + return d->centerIn; +} + +void QQuickPopupAnchors::setCenterIn(QQuickItem *item) +{ + Q_D(QQuickPopupAnchors); + if (item == d->centerIn) + return; + + d->centerIn = item; + d->positioner->reposition(); + emit centerInChanged(); +} + +void QQuickPopupAnchors::resetCenterIn() +{ + setCenterIn(nullptr); +} + +QT_END_NAMESPACE |