Everywhere: Use 'increase_slider_by()' method from AbstractSlider

This method help us to avoid repeating the pattern 'set_value(value() + delta)'.
Author: https://github.com/elyse0 Commit: d53e1fa1fa Pull-request: https://github.com/SerenityOS/serenity/pull/11163 Reviewed-by: https://github.com/kleinesfilmroellchen ✅ Reviewed-by: https://github.com/metmo ✅
2025-06-04 09:22:53 +00:00 · 2021-12-28 21:47:26 -06:00 · 2021-12-28 21:47:26 -06:00 · d53e1fa1fa · 2024-07-17 21:55:29 +09:00
commit d53e1fa1fa
parent 8b8f404146
12 changed files with 19 additions and 19 deletions
--- a/Userland/Applications/PDFViewer/PDFViewer.cpp
+++ b/Userland/Applications/PDFViewer/PDFViewer.cpp
@ -95,7 +95,7 @@ void PDFViewer::mousewheel_event(GUI::MouseEvent& event)
                    scrollbar.set_value(0);
                }
            } else {
-                scrollbar.set_value(scrollbar.value() + 20);
+                scrollbar.increase_slider_by(20);
            }
        } else {
            if (scrollbar.value() == 0) {