Gui: use const (and const APIs) more

For CoW types, prefer const methods to avoid needless detach()ing.

Change-Id: I88d08d499e1be72c1f6d983fecdcee513df18aa2
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>

1 files changed, 9 insertions, 9 deletions

diff --git a/src/gui/image/qimagepixmapcleanuphooks.cpp b/src/gui/image/qimagepixmapcleanuphooks.cpp
index 10fa4303b2..f383e7a60e 100644
--- a/src/gui/image/qimagepixmapcleanuphooks.cpp
+++ b/src/gui/image/qimagepixmapcleanuphooks.cpp
@@ -84,38 +84,38 @@ void QImagePixmapCleanupHooks::removeImageHook(_qt_image_cleanup_hook_64 hook)
 
 void QImagePixmapCleanupHooks::executePlatformPixmapModificationHooks(QPlatformPixmap* pmd)
 {
-    QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
+    const QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
     // the global destructor for the pixmap and image hooks might have
     // been called already if the app is "leaking" global
     // pixmaps/images
     if (!h)
         return;
-    for (int i = 0; i < h->pixmapModificationHooks.count(); ++i)
-        h->pixmapModificationHooks[i](pmd);
+    for (auto hook : h->pixmapModificationHooks)
+        hook(pmd);
 }
 
 void QImagePixmapCleanupHooks::executePlatformPixmapDestructionHooks(QPlatformPixmap* pmd)
 {
-    QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
+    const QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
     // the global destructor for the pixmap and image hooks might have
     // been called already if the app is "leaking" global
     // pixmaps/images
     if (!h)
         return;
-    for (int i = 0; i < h->pixmapDestructionHooks.count(); ++i)
-        h->pixmapDestructionHooks[i](pmd);
+    for (auto hook : h->pixmapDestructionHooks)
+        hook(pmd);
 }
 
 void QImagePixmapCleanupHooks::executeImageHooks(qint64 key)
 {
-    QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
+    const QImagePixmapCleanupHooks *h = qt_image_and_pixmap_cleanup_hooks();
     // the global destructor for the pixmap and image hooks might have
     // been called already if the app is "leaking" global
     // pixmaps/images
     if (!h)
         return;
-    for (int i = 0; i < h->imageHooks.count(); ++i)
-        h->imageHooks[i](key);
+    for (auto hook : h->imageHooks)
+        hook(key);
 }