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LibGUI: Add movement methods to AbstractSlider

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These methods give us a simple way to move up and down the slider,
without needing to repeat the 'set_value(value() + some_value)'
pattern that multiple applications and libraries use.
This commit is contained in:
Elyse 2021-12-28 21:46:19 -06:00 • committed by Andreas Kling
parent 4427386d5f
commit 8b8f404146
1 changed files with 7 additions and 0 deletions
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7
Userland/Libraries/LibGUI/AbstractSlider.h
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@ -38,6 +38,13 @@ public:
void set_page_step(int page_step);
void set_jump_to_cursor(bool b) { m_jump_to_cursor = b; }
void increase_slider_by(int delta) { set_value(value() + delta); }
void decrease_slider_by(int delta) { set_value(value() - delta); }
void increase_slider_by_page_steps(int page_steps) { set_value(value() + page_step() * page_steps); }
void decrease_slider_by_page_steps(int page_steps) { set_value(value() - page_step() * page_steps); }
void increase_slider_by_steps(int steps) { set_value(value() + step() * steps); }
void decrease_slider_by_steps(int steps) { set_value(value() - step() * steps); }
Function<void(int)> on_change;
protected: