#include <embedded_widget.hpp>
Public Member Functions | |
| template<typename... Args> | |
| embedded_widget (Args &&... args) | |
| 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_activate () override |
| std::vector< widget * > | get_children () override |
| std::vector< widget const * > | get_children () const override |
| void | on_box_allocated () override |
| widget * | find_selectable (navigation_type nt, point center) override |
| widget * | navigate_selectable (navigation_type nt, point center) override |
| widget * | navigate_selectable_from_children (navigation_type nt, widget *w, point center) override |
| size_hint | get_size_hint (int width, int height) const override |
| virtual bool | can_use_intermediate_size () const |
 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 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 |
| void | apply_layout (SDL_Rect box) |
| virtual void | on_select () |
| virtual void | on_unselect () |
Protected Attributes | |
| BaseWidget | _embedded_widget |
| Protected Attributes inherited from widget | |
| widget * | _parent |
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) |
Detailed Description
template<typename BaseWidget>
struct embedded_widget< BaseWidget >
Embeds a widget without sharing details of the concrete type to the outside while forwarding its widget interface.
Constructor & Destructor Documentation
◆ embedded_widget()
|
inline |
Construct the embedded widget by forwarding the given argument to it.
Member Function Documentation
◆ can_use_intermediate_size()
|
inlinevirtual |
Whether a widget is able to use an intermediate value between minimal and natural size (e.g., assigning more width or height). This might change the aspect ratio of the widget.
Whenever a widget does not fit with natural but more than minimal, some widgets profit from using additional space. For example, an image in aspect ratio or a list view. A label in general can't profit from extra space and would only look awkward.
Reimplemented from widget.
◆ find_selectable()
|
inlineoverridevirtual |
Should return the first selectable widget according to the navigation type. If a widget is selectable it should return itself. Containers should return the first selectable child widget. Otherwise nullptr is returned.
The point may serve as a hint to provide a more accurate selection.
Reimplemented from widget.
◆ get_children()
|
inlineoverridevirtual |
Return child widgets in Z-order. Should be implemented by containers.
Reimplemented from widget.
◆ get_size_hint()
|
inlineoverridevirtual |
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.
◆ navigate_selectable()
|
inlineoverridevirtual |
Perform a navigation request from this widget as source.
A widget that is not selectable doesn't have to implement this. Containers on the other hand should implement this to enable navigation of their children.
The point may serve as a hint to provide a more accurate selection.
Reimplemented from widget.
◆ navigate_selectable_from_children()
|
inlineoverridevirtual |
When a child widget has exhausted its selectable widgets it may ask its parent for the next widget according to the navigation. The coordinates of the widget are provided to get a more accurate result for some navigation types (i.e. 2-dimensional). The widget passed has to be the direct child, otherwise the parent is not able to find it.
Only containers should implement this.
Reimplemented from widget.
◆ on_activate()
|
inlineoverridevirtual |
A widget may get activated by other means (e.g., infrared remote or return key).
Reimplemented from widget.
◆ on_box_allocated()
|
inlineoverridevirtual |
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()
|
inlineoverridevirtual |
Draw the widget. No children should be drawn here.
Implements widget.
The documentation for this struct was generated from the following file:
- /home/moritz/Programmieren/C++/libwtk-sdl2/include/embedded_widget.hpp
