HikoGUI
A low latency retained GUI
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Public Types | Public Member Functions
hi::v1::grid_widget Class Reference

#include <hikogui/widgets/grid_widget.hpp>

Inheritance diagram for hi::v1::grid_widget:
hi::v1::widget hi::v1::widget_intf

Public Types

using super = widget
 

Public Member Functions

 grid_widget (widget *parent) noexcept
 Constructs an empty grid widget.
 
template<typename Widget , typename... Args>
Widgetmake_widget (std::size_t first_column, std::size_t first_row, std::size_t last_column, std::size_t last_row, Args &&...args)
 Add a widget directly to this grid-widget.
 
template<typename Widget , typename... Args>
Widgetmake_widget (std::size_t column, std::size_t row, Args &&...args)
 Add a widget directly to this grid-widget.
 
template<typename Widget , typename... Args>
Widgetmake_widget (std::string_view address, Args &&...args)
 Add a widget directly to this grid-widget.
 
- Public Member Functions inherited from hi::v1::widget
 widget (widget *parent) noexcept
 
 widget (const widget &)=delete
 
widgetoperator= (const widget &)=delete
 
 widget (widget &&)=delete
 
widgetoperator= (widget &&)=delete
 
generator< widget_intf & > children (bool include_invisible) noexcept override
 Get a list of child widgets.
 
hitbox hitbox_test (point2 position) const noexcept override
 Find the widget that is under the mouse cursor.
 
virtual hitbox hitbox_test_from_parent (point2 position) const noexcept
 Call hitbox_test from a parent widget.
 
virtual hitbox hitbox_test_from_parent (point2 position, hitbox sibling_hitbox) const noexcept
 Call hitbox_test from a parent widget.
 
bool accepts_keyboard_focus (keyboard_focus_group group) const noexcept override
 Check if the widget will accept keyboard focus.
 
box_constraints update_constraints () noexcept override
 Update the constraints of the widget.
 
void set_layout (widget_layout const &context) noexcept override
 Update the internal layout of the widget.
 
widget_layout constlayout () const noexcept override
 Get the current layout for this widget.
 
void draw (draw_context const &context) noexcept override
 Draw the widget.
 
bool process_event (gui_event const &event) const noexcept override
 Send a event to the window.
 
void request_redraw () const noexcept override
 Request the widget to be redrawn on the next frame.
 
bool handle_event (gui_event const &event) noexcept override
 Handle command.
 
bool handle_event_recursive (gui_event const &event, std::vector< widget_id > const &reject_list=std::vector< widget_id >{}) noexcept override
 Handle command recursive.
 
virtual widget_id find_next_widget (widget_id current_keyboard_widget, keyboard_focus_group group, keyboard_focus_direction direction) const noexcept override
 Find the next widget that handles keyboard focus.
 
widget_id find_first_widget (keyboard_focus_group group) const noexcept override
 
widget_id find_last_widget (keyboard_focus_group group) const noexcept override
 
bool is_first (keyboard_focus_group group) const noexcept
 Is this widget the first widget in the parent container.
 
bool is_last (keyboard_focus_group group) const noexcept
 Is this widget the last widget in the parent container.
 
void scroll_to_show (hi::aarectangle rectangle) noexcept override
 Scroll to show the given rectangle on the window.
 
void set_window (gui_window *window) noexcept override
 Set the window for this tree of widgets.
 
gui_window * window () const noexcept override
 Get the window that the widget is owned by.
 
hi::theme consttheme () const noexcept
 
gfx_surface constsurface () const noexcept
 
virtual color background_color () const noexcept
 
virtual color foreground_color () const noexcept
 
virtual color focus_color () const noexcept
 
virtual color accent_color () const noexcept
 
virtual color label_color () const noexcept
 
virtual generator< widget_intf & > children (bool include_invisible) noexcept=0
 Get a list of child widgets.
 
virtual generator< widget_intf const & > children (bool include_invisible) const noexcept final
 Get a list of child widgets.
 
virtual void scroll_to_show (hi::aarectangle rectangle) noexcept=0
 Scroll to show the given rectangle on the window.
 
void scroll_to_show () noexcept
 Scroll to show the important part of the widget.
 
- Public Member Functions inherited from hi::v1::widget_intf
 widget_intf (widget_intf *parent) noexcept
 
std::vector< widget_id > parent_chain () const noexcept
 Get a list of parents of a given widget.
 
void scroll_to_show () noexcept
 Scroll to show the important part of the widget.
 

Additional Inherited Members

- Data Fields inherited from hi::v1::widget
observer< widget_modemode = widget_mode::enabled
 The widget mode.
 
observer< boolhover = false
 Mouse cursor is hovering over the widget.
 
observer< boolfocus = false
 The widget has keyboard focus.
 
int semantic_layer = 0
 The draw layer of the widget.
 
int logical_layer = 0
 The logical layer of the widget.
 
observer< extent2minimum = extent2{}
 The minimum size this widget is allowed to be.
 
observer< extent2maximum = extent2::large()
 The maximum size this widget is allowed to be.
 
- Data Fields inherited from hi::v1::widget_intf
widget_id id = {}
 The numeric identifier of a widget.
 
widget_intfparent = nullptr
 Pointer to the parent widget.
 

Detailed Description

A GUI widget that lays out child-widgets in a grid with variable sized cells.

The grid widget lays out child widgets in a grid pattern. Each child widget occupies a single cell, which belongs into a single column and a single row.

Columns are laid out from left to right, and rows from top to bottom. The row and columns number may be specified as integers, or using an spreadsheet-like cell-address:

The grid widget will calculate the size of each row and column based on the minimum, preferred and maximum size of each child widget contained in them. Margins are also taken into account in the spacing between columns and between rows.

When laid out, each child is sized to where it will occupy the full width and height of each cell.

Constructor & Destructor Documentation

◆ grid_widget()

hi::v1::grid_widget::grid_widget ( widget * parent)
inlinenoexcept

Constructs an empty grid widget.

Parameters
parentThe parent widget.

Member Function Documentation

◆ make_widget() [1/3]

template<typename Widget , typename... Args>
Widget & hi::v1::grid_widget::make_widget ( std::size_t column,
std::size_t row,
Args &&... args )
inline

Add a widget directly to this grid-widget.

Template Parameters
WidgetThe type of the widget to be constructed.
Parameters
columnThe zero-based index from left-to-right.
rowThe zero-based index from top-to-bottom.
argsThe arguments passed to the constructor of the widget.
Returns
A reference to the widget that was created.

◆ make_widget() [2/3]

template<typename Widget , typename... Args>
Widget & hi::v1::grid_widget::make_widget ( std::size_t first_column,
std::size_t first_row,
std::size_t last_column,
std::size_t last_row,
Args &&... args )
inline

Add a widget directly to this grid-widget.

Template Parameters
WidgetThe type of the widget to be constructed.
Parameters
first_columnThe first (left-most) column to place the widget in.
first_rowThe first (top-most) row to place the widget in.
last_columnOne beyond the last column to place the widget in.
last_rowOne beyond the last row to place the widget in.
argsThe arguments passed to the constructor of the widget.
Returns
A reference to the widget that was created.

◆ make_widget() [3/3]

template<typename Widget , typename... Args>
Widget & hi::v1::grid_widget::make_widget ( std::string_view address,
Args &&... args )
inline

Add a widget directly to this grid-widget.

Template Parameters
WidgetThe type of the widget to be constructed.
Parameters
addressThe spreadsheet-like address of the cell, see parse_spreadsheet_address().
argsThe arguments passed to the constructor of the widget.
Returns
A reference to the widget that was created.

The documentation for this class was generated from the following file: