Fix layout dpi should not update while typing

[YoannQDQ]

• Fix Do not update DPI of layout until field is left or the Enter key is pushed #56727

[agiudiceandrea]

I think it would be useful to backport this fix to 3.40 and 3.34, or at least to 3.40.

[github-actions]

🪟 Windows builds

Download Windows builds of this PR for testing.
Debug symbols for this build are available here.
(Built from commit f84765c)

🪟 Windows Qt6 builds

Download Windows Qt6 builds of this PR for testing.
(Built from commit f84765c)

[nicogodet]

A timer could be nice instead of editingFinished

[nyalldawson]

A timer could be nice instead of editingFinished

See #59787 -- @YoannQDQ it should be trivial to change to that signal when #59787 is merged

[nyalldawson]

Merging for now in order to get backports functional -- the timeout change can be addressed later

[qgis-bot]

The backport to queued_ltr_backports failed:

The process '/usr/bin/git' failed with exit code 1

stderr

error: could not apply f84765ce61f... layout update dpi on editingFinished
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config advice.mergeConflict false"

stdout

Auto-merging src/gui/layout/qgslayoutpropertieswidget.cpp
CONFLICT (content): Merge conflict in src/gui/layout/qgslayoutpropertieswidget.cpp

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-queued_ltr_backports queued_ltr_backports
# Navigate to the new working tree
cd .worktrees/backport-queued_ltr_backports
# Create a new branch
git switch --create backport-59398-to-queued_ltr_backports
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick f84765ce61f87528818feed181e83070397be37d
# Push it to GitHub
git push --set-upstream origin backport-59398-to-queued_ltr_backports
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-queued_ltr_backports

Then, create a pull request where the base branch is queued_ltr_backports and the compare/head branch is backport-59398-to-queued_ltr_backports.

[qgis-bot]

The backport to release-3_40 failed:

The process '/usr/bin/git' failed with exit code 1

stderr

error: could not apply f84765ce61f... layout update dpi on editingFinished
hint: After resolving the conflicts, mark them with
hint: "git add/rm <pathspec>", then run
hint: "git cherry-pick --continue".
hint: You can instead skip this commit with "git cherry-pick --skip".
hint: To abort and get back to the state before "git cherry-pick",
hint: run "git cherry-pick --abort".
hint: Disable this message with "git config advice.mergeConflict false"

stdout

Auto-merging src/gui/layout/qgslayoutpropertieswidget.cpp
CONFLICT (content): Merge conflict in src/gui/layout/qgslayoutpropertieswidget.cpp

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-release-3_40 release-3_40
# Navigate to the new working tree
cd .worktrees/backport-release-3_40
# Create a new branch
git switch --create backport-59398-to-release-3_40
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick f84765ce61f87528818feed181e83070397be37d
# Push it to GitHub
git push --set-upstream origin backport-59398-to-release-3_40
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-release-3_40

Then, create a pull request where the base branch is release-3_40 and the compare/head branch is backport-59398-to-release-3_40.