[GUI] Replace more deprecated Qt methods #1737
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Follow up to #1357, this eliminates compiler warnings for Qt versions up-to and including 5.14.
Also removes the unused old splashscreen files.
Note: new compiler warnings about deprecation appear in Qt 5.15, but will need to handle them later as their replacement functions/suggestions aren't supported by Qt 5.9, which is our minimum supported version.