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LibGUI: Add page_step setting to AbstractSlider and use it in Slider

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This makes clicking on the track of a GUI::Slider actually move the
knob more than 1 value unit (assuming page_step > 1)
This commit is contained in:
Andreas Kling 2020-12-30 14:47:22 +01:00
parent fa836a4dda
commit 3b445bc66a
Notes: sideshowbarker 2024-07-19 00:22:43 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/3b445bc66ac
3 changed files with 12 additions and 2 deletions
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7
Libraries/LibGUI/AbstractSlider.cpp
View File

@ -36,9 +36,11 @@ namespace GUI {
AbstractSlider::AbstractSlider(Orientation orientation)
: m_orientation(orientation)
{
REGISTER_INT_PROPERTY("value", value, set_value);
REGISTER_INT_PROPERTY("min", min, set_min);
REGISTER_INT_PROPERTY("max", max, set_max);
REGISTER_INT_PROPERTY("step", step, set_step);
REGISTER_INT_PROPERTY("page_step", page_step, set_page_step);
REGISTER_ENUM_PROPERTY("orientation", this->orientation, set_orientation, Orientation,
{ Orientation::Horizontal, "Horizontal" },
{ Orientation::Vertical, "Vertical" });
@ -56,6 +58,11 @@ void AbstractSlider::set_orientation(Orientation value)
update();
}
void AbstractSlider::set_page_step(int page_step)
{
m_page_step = AK::max(0, page_step);
}
void AbstractSlider::set_range(int min, int max)
{
ASSERT(min <= max);

3
Libraries/LibGUI/AbstractSlider.h
View File

@ -43,6 +43,7 @@ public:
int min() const { return m_min; }
int max() const { return m_max; }
int step() const { return m_step; }
int page_step() const { return m_page_step; }
void set_range(int min, int max);
void set_value(int);
@ -50,6 +51,7 @@ public:
void set_min(int min) { set_range(min, max()); }
void set_max(int max) { set_range(min(), max); }
void set_step(int step) { m_step = step; }
void set_page_step(int page_step);
Function<void(int)> on_value_changed;
@ -63,6 +65,7 @@ private:
int m_min { 0 };
int m_max { 100 };
int m_step { 1 };
int m_page_step { 10 };
Orientation m_orientation { Orientation::Horizontal };
};

4
Libraries/LibGUI/Slider.cpp
View File

@ -105,9 +105,9 @@ void Slider::mousedown_event(MouseEvent& event)
return;
} else {
if (event.position().primary_offset_for_orientation(orientation()) > knob_rect().last_edge_for_orientation(orientation()))
set_value(value() + 1);
set_value(value() + page_step());
else if (event.position().primary_offset_for_orientation(orientation()) < knob_rect().first_edge_for_orientation(orientation()))
set_value(value() - 1);
set_value(value() - page_step());
}
}
return Widget::mousedown_event(event);