QHash/QMap::keys() allocates a list of every key on each call, then
contains() searches it linearly - an accidental O(n) plus allocation
where a direct O(1) lookup was meant. 35 occurrences across 7 files,
found while profiling project load times (context: #553/#560).
The hot one is ElementPictureFactory::getPictures(), which runs once
per element instance on project load: on the 3399 KiB example project
(191 instances, 129 cache hits) the keys() detour cost 45 ms of the
1.34 s total - measured, not estimated; the fix reproducibly shaves
~35-45 ms off that load. The remaining call sites are UI paths
(search&replace, dynamic text model, undo commands) where the waste
scales with selection/model size.
No behavior change: for QHash/QMap, keys().contains(k) and
contains(k) are equivalent by definition.
(cherry picked from commit 0a7f8f072fa68de7c01a9fc134a4bc8e16d62062)
Qet crash when double click on an element/text/conductor in the tree
widget of the search and replace widget and the item is deleted from
diagram. (Call of Diagram::showme to a nullptr).
clazy is a compiler plugin which allows clang to understand Qt
semantics. You get more than 50 Qt related compiler warnings, ranging
from unneeded memory allocations to misusage of API, including fix-its
for automatic refactoring.
https://invent.kde.org/sdk/clazy
Fix 1 : when widget is reloaded the categories is not checked, but the
child items is. Now all category is checked when reloaded.
Fix 2 : the folio number displayed in the widget is wrong (start at 0
instead of 1)
Replace QETApp::diagramInfoKeys() by QETInformation::diagramInfoKeys()
and QETApp::diagramTranslatedInfoKey(str) by
QETInformation::translatedInfoKey(str)
Replace QETApp::conductorInfoKeys() and
QETApp::conductorTranslatedInfoKey(const QString &key) by
QETInformation::conductorInfoKeys() and
QETInformation::translatedInfoKey
Use the function QETInformation::translatedInfoKey(const QString &info)
instead of QETApp::elementTranslatedInfoKey(const QString &info).
The final goal is to remove all information from the QETApp and use
instea QETInformation who is dedicated to this
Minor gui change of conductor properties widget
git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@5647 bfdf4180-ca20-0410-9c96-a3a8aa849046
Dieter Mayer