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authorMarc Mutz <marc.mutz@kdab.com>2016-08-17 09:20:37 +0200
committerMarc Mutz <marc.mutz@kdab.com>2016-08-27 05:09:20 +0000
commit3c7d67a04419345787b7aa6ce9ca13c9ded1ba82 (patch)
tree5f9cf85cf0270f755576076d03dfe0940f6a1c1f
parentefcae5d5caefcaf86bfb76fce7d4d1a5c4229753 (diff)
offscreen plugin: eradicate Q_FOREACH loops
... by replacing them with C++11 for-each loops. In clearHash(), replace iteration over QHash::keys() with iteration over the hash itself. Also use the new const- iterator overload of QHash::erase() to save one attempted detach (in QHash::find()). Mark the plugin as QT_NO_FOREACH. Saves almost 2KiB (1.4%) in text size on optimized GCC 6.1 Linux AMD64 builds. Change-Id: I9bb3154130687c0061ea09b04ab5f627a4d2296c Reviewed-by: Lars Knoll <lars.knoll@qt.io>
-rw-r--r--src/plugins/platforms/offscreen/offscreen.pro2
-rw-r--r--src/plugins/platforms/offscreen/qoffscreencommon.cpp17
2 files changed, 10 insertions, 9 deletions
diff --git a/src/plugins/platforms/offscreen/offscreen.pro b/src/plugins/platforms/offscreen/offscreen.pro
index cc65449b04..fbaa853c41 100644
--- a/src/plugins/platforms/offscreen/offscreen.pro
+++ b/src/plugins/platforms/offscreen/offscreen.pro
@@ -2,6 +2,8 @@ TARGET = qoffscreen
QT += core-private gui-private platformsupport-private
+DEFINES += QT_NO_FOREACH
+
SOURCES = main.cpp \
qoffscreenintegration.cpp \
qoffscreenwindow.cpp \
diff --git a/src/plugins/platforms/offscreen/qoffscreencommon.cpp b/src/plugins/platforms/offscreen/qoffscreencommon.cpp
index a63aacdbfe..85422071aa 100644
--- a/src/plugins/platforms/offscreen/qoffscreencommon.cpp
+++ b/src/plugins/platforms/offscreen/qoffscreencommon.cpp
@@ -59,9 +59,9 @@ public:
void setPos(const QPoint &pos) Q_DECL_OVERRIDE
{
m_pos = pos;
- QWindowList wl = QGuiApplication::topLevelWindows();
+ const QWindowList wl = QGuiApplication::topLevelWindows();
QWindow *containing = 0;
- foreach (QWindow *w, wl) {
+ for (QWindow *w : wl) {
if (w->type() != Qt::Desktop && w->isExposed() && w->geometry().contains(pos)) {
containing = w;
break;
@@ -104,9 +104,9 @@ QPixmap QOffscreenScreen::grabWindow(WId id, int x, int y, int width, int height
QOffscreenWindow *window = QOffscreenWindow::windowForWinId(id);
if (!window || window->window()->type() == Qt::Desktop) {
- QWindowList wl = QGuiApplication::topLevelWindows();
+ const QWindowList wl = QGuiApplication::topLevelWindows();
QWindow *containing = 0;
- foreach (QWindow *w, wl) {
+ for (QWindow *w : wl) {
if (w->type() != Qt::Desktop && w->isExposed() && w->geometry().contains(rect)) {
containing = w;
break;
@@ -212,11 +212,10 @@ QOffscreenBackingStore *QOffscreenBackingStore::backingStoreForWinId(WId id)
void QOffscreenBackingStore::clearHash()
{
- QList<WId> ids = m_windowAreaHash.keys();
- foreach (WId id, ids) {
- QHash<WId, QOffscreenBackingStore *>::iterator it = m_backingStoreForWinIdHash.find(id);
- if (it.value() == this)
- m_backingStoreForWinIdHash.remove(id);
+ for (auto it = m_windowAreaHash.cbegin(), end = m_windowAreaHash.cend(); it != end; ++it) {
+ const auto it2 = qAsConst(m_backingStoreForWinIdHash).find(it.key());
+ if (it2.value() == this)
+ m_backingStoreForWinIdHash.erase(it2);
}
m_windowAreaHash.clear();
}