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-rw-r--r--src/gui/image/qicon.cpp84
1 files changed, 55 insertions, 29 deletions
diff --git a/src/gui/image/qicon.cpp b/src/gui/image/qicon.cpp
index d9e1347e4b..0c716a89ff 100644
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@@ -1,32 +1,38 @@
/****************************************************************************
**
-** Copyright (C) 2015 The Qt Company Ltd.
+** Copyright (C) 2016 The Qt Company Ltd.
** Copyright (C) 2015 Olivier Goffart <ogoffart@woboq.com>
-** Contact: http://www.qt.io/licensing/
+** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtGui module of the Qt Toolkit.
**
-** $QT_BEGIN_LICENSE:LGPL21$
+** $QT_BEGIN_LICENSE:LGPL$
** 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.
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://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 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 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-3.0.html.
**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
@@ -920,7 +926,7 @@ void QIcon::paint(QPainter *painter, const QRect &rect, Qt::Alignment alignment,
*/
bool QIcon::isNull() const
{
- return !d;
+ return !d || d->engine->isNull();
}
/*!\internal
@@ -935,7 +941,12 @@ bool QIcon::isDetached() const
void QIcon::detach()
{
if (d) {
- if (d->ref.load() != 1) {
+ if (d->engine->isNull()) {
+ if (!d->ref.deref())
+ delete d;
+ d = 0;
+ return;
+ } else if (d->ref.load() != 1) {
QIconPrivate *x = new QIconPrivate;
x->engine = d->engine->clone();
if (!d->ref.deref())
@@ -959,11 +970,10 @@ void QIcon::addPixmap(const QPixmap &pixmap, Mode mode, State state)
{
if (pixmap.isNull())
return;
+ detach();
if (!d) {
d = new QIconPrivate;
d->engine = new QPixmapIconEngine;
- } else {
- detach();
}
d->engine->addPixmap(pixmap, mode, state);
}
@@ -1003,6 +1013,7 @@ void QIcon::addFile(const QString &fileName, const QSize &size, Mode mode, State
{
if (fileName.isEmpty())
return;
+ detach();
if (!d) {
#ifndef QT_NO_LIBRARY
QFileInfo info(fileName);
@@ -1025,8 +1036,6 @@ void QIcon::addFile(const QString &fileName, const QSize &size, Mode mode, State
d = new QIconPrivate;
d->engine = new QPixmapIconEngine;
}
- } else {
- detach();
}
d->engine->addFile(fileName, size, mode, state);
@@ -1136,8 +1145,7 @@ QString QIcon::themeName()
\since 4.6
Returns the QIcon corresponding to \a name in the current
- icon theme. If no such icon is found in the current theme
- \a fallback is returned instead.
+ icon theme.
The latest version of the freedesktop icon specification and naming
specification can be obtained here:
@@ -1151,19 +1159,18 @@ QString QIcon::themeName()
\snippet code/src_gui_image_qicon.cpp 3
- Or if you want to provide a guaranteed fallback for platforms that
- do not support theme icons, you can use the second argument:
-
- \snippet code/src_gui_image_qicon.cpp 4
-
\note By default, only X11 will support themed icons. In order to
use themed icons on Mac and Windows, you will have to bundle a
compliant theme in one of your themeSearchPaths() and set the
appropriate themeName().
+ \note Qt will make use of GTK's icon-theme.cache if present to speed up
+ the lookup. These caches can be generated using gtk-update-icon-cache:
+ \l{https://developer.gnome.org/gtk3/stable/gtk-update-icon-cache.html}.
+
\sa themeName(), setThemeName(), themeSearchPaths()
*/
-QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
+QIcon QIcon::fromTheme(const QString &name)
{
QIcon icon;
@@ -1179,7 +1186,26 @@ QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
qtIconCache()->insert(name, cachedIcon);
}
- if (qApp && icon.availableSizes().isEmpty())
+ return icon;
+}
+
+/*!
+ \overload
+
+ Returns the QIcon corresponding to \a name in the current
+ icon theme. If no such icon is found in the current theme
+ \a fallback is returned instead.
+
+ If you want to provide a guaranteed fallback for platforms that
+ do not support theme icons, you can use the second argument:
+
+ \snippet code/src_gui_image_qicon.cpp 4
+*/
+QIcon QIcon::fromTheme(const QString &name, const QIcon &fallback)
+{
+ QIcon icon = fromTheme(name);
+
+ if (icon.isNull() || icon.availableSizes().isEmpty())
return fallback;
return icon;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 07:53:49 +0000