Public Member Functions | |
| slider (int start, int end, int num_steps, std::function< void(int)> value_callback) | |
| slider (int start, int end, std::function< void(int)> value_callback) | |
| void | on_draw (draw_context &dc, selection_context const &sc) const override |
| void | on_mouse_up_event (mouse_up_event const &e) override |
| void | on_mouse_down_event (mouse_down_event const &e) override |
| void | on_mouse_move_event (mouse_move_event const &e) override |
| void | on_key_event (key_event const &e) override |
| void | on_box_allocated () override |
| size_hint | get_size_hint (int width, int height) const override |
Slider Interface | |
| void | set_step_interval (int n) |
| int | get_step_interval () const |
| int | get_value () const |
 Public Member Functions inherited from selectable | |
| widget * | find_selectable (navigation_type nt, point center) override |
| widget * | navigate_selectable (navigation_type nt, point center) override |
| void | on_select () override |
| void | on_unselect () override |
| Public Member Functions inherited from widget | |
| widget (widget const &)=delete | |
| widget & | operator= (widget const &)=delete |
| SDL_Rect const & | get_box () const |
| context_info const & | get_context_info () const |
| void | set_context_info (context_info const &ci) |
| void | set_parent (widget *parent) |
| virtual std::vector< widget * > | get_children () |
| virtual std::vector< widget const * > | get_children () const |
| virtual void | on_child_dirty (widget *child) |
| virtual std::vector< widget * > | get_visible_children () |
| virtual std::vector< widget const * > | get_visible_children () const |
| void | clear_dirty () |
| void | mark_dirty () |
| void | mark_child_dirty (widget *child) |
| void | draw (draw_context &dc, selection_context const &sc) const |
| void | draw_dirty (draw_context &dc, selection_context const &sc) const |
| virtual void | on_activate () |
| void | apply_layout (SDL_Rect box) |
| virtual bool | can_use_intermediate_size () const |
| virtual widget * | navigate_selectable_from_children (navigation_type nt, widget *w, point center) |
Additional Inherited Members | |
| Protected Member Functions inherited from widget | |
| std::optional< swipe_info > | get_swipe_info_with_context_info (mouse_up_event const &e) |
| widget * | navigate_selectable_parent (navigation_type nt, point center) |
| Protected Attributes inherited from widget | |
| widget * | _parent |
Constructor & Destructor Documentation
◆ slider() [1/2]
| slider::slider | ( | int | start, |
| int | end, | ||
| int | num_steps, | ||
| std::function< void(int)> | value_callback | ||
| ) |
Create a slider that selects an integer interval with num_step steps starting with intervals from start up or down to end.
Be careful when specifying num_steps, as it uses integer division, so the result might not work properly. E.g., when choosing start as 0 and end as 10 the correct number of steps is 11.
◆ slider() [2/2]
| slider::slider | ( | int | start, |
| int | end, | ||
| std::function< void(int)> | value_callback | ||
| ) |
Create a slider that selects an integer interval with num_step steps starting with intervals from start up or down to end. This constructor will always construct intervals with length 1.
Member Function Documentation
◆ get_size_hint()
|
overridevirtual |
Computes the widgets preferred minimal and natural size. When given a specific width or height the widget might use that to give a more accurate size.
Implements widget.
◆ get_value()
| int slider::get_value | ( | ) | const |
Returns the starting value of the currently selected interval.
◆ on_box_allocated()
|
overridevirtual |
Refresh layout with existing box. This should not be called if the widget does not have a box already. Otherwise no space is allocated.
Reimplemented from widget.
◆ on_draw()
|
overridevirtual |
Draw the widget. No children should be drawn here.
Implements widget.
◆ set_step_interval()
| void slider::set_step_interval | ( | int | n | ) |
Set the slider to the interval with index n.
The documentation for this struct was generated from the following file:
- /home/moritz/Programmieren/C++/libwtk-sdl2/include/slider.hpp
