GUIWidgetWML

In various parts of the GUI there are several variables types in use. More...

Classes
class	gui2::drawing
	A drawing is widget with a fixed size and gives access to the canvas of the widget in the window instance. More...
class	gui2::horizontal_scrollbar
	A horizontal scrollbar is a widget that shows a horizontal scrollbar. More...
class	gui2::image
	An image shows a static image. More...
class	gui2::label
	A label displays text that can be wrapped but no scrollbars are provided. More...
struct	gui2::implementation::builder_listbox
	A listbox is a control that holds several items of the same type. More...
struct	gui2::implementation::builder_horizontal_listbox
	A horizontal listbox is a control that holds several items of the same type. More...
struct	gui2::implementation::builder_grid_listbox
	A grid listbox is a styled_widget that holds several items of the same type. More...
class	gui2::matrix
	List with the matrix specific variables: More...
class	gui2::menu_button
	A menu_button is a styled_widget to choose an element from a list of elements. More...
class	gui2::minimap
	The basic minimap class. More...
class	gui2::multi_page
	A multi page is a control that contains several 'pages' of which only one is visible. More...
class	gui2::multimenu_button
	A multimenu_button is a styled_widget to choose an element from a list of elements. More...
class	gui2::pane
	A pane is a container where new members can be added and removed during run-time. More...
class	gui2::panel
	A panel is a visible container to hold multiple widgets. More...
class	gui2::password_box
class	gui2::progress_bar
	This object shows the progress of a certain action, or the value state of a certain item. More...
class	gui2::repeating_button
	A repeating_button is a control that can be pushed down and repeat a certain action. More...
class	gui2::scroll_label
	Label showing a text. More...
class	gui2::scrollbar_panel
	Visible container to hold multiple widgets. More...
class	gui2::size_lock
	A fixed-size widget that wraps an arbitrary widget and forces it to the given size. More...
class	gui2::slider
	A slider is a control that can select a value by moving a grip on a groove. More...
class	gui2::spacer
	An empty widget to either fill in a widget since no empty items are allowed or to reserve a fixed space. More...
class	gui2::stacked_widget
	A stacked widget holds several widgets on top of each other. More...
class	gui2::styled_widget
	Base class for all visible items. More...
class	gui2::text_box
	Class for a single line text area. More...
class	gui2::toggle_button
	Class for a toggle button. More...
class	gui2::toggle_panel
	Class for a toggle button. More...
class	gui2::tree_view
	A tree view is a control that holds several items of the same or different types. More...
class	gui2::vertical_scrollbar
	The definition of a vertical scrollbar. More...
class	gui2::viewport
	A viewport is an special widget used to view only a part of the widget it 'holds'. More...
class	gui2::window
	base class of top level items, the only item which needs to store the final canvases to draw on. More...
class	gui::button
	A button is a control that can be pushed to start an action or close a dialog. More...

Detailed Description

In various parts of the GUI there are several variables types in use.

This section describes them.

Below are the simple types which have one value or a short list of options:

Variable	description
unsigned	Unsigned number (positive whole numbers and zero).
f_unsigned	Unsigned number or formula returning an unsigned number.
int	Signed number (whole numbers).
f_int	Signed number or formula returning an signed number.
bool	A boolean value accepts the normal values as the rest of the game.
f_bool	Boolean value or a formula returning a boolean value.
string	A text.
t_string	A translatable string.
f_tstring	Formula returning a translatable string.
function	A string containing a set of function definition for the formula language.
color	A string which contains the color, this a group of 4 numbers between 0 and 255 separated by a comma. The numbers are red component, green component, blue component and alpha. A color of 0 is not available. An alpha of 255 is fully transparent. Omitted values are set to 0.
font_style	A string which contains the style of the font: normal bold italic underlined Since SDL has problems combining these styles only one can be picked. Once SDL will allow multiple options, this type will be transformed to a comma separated list. If empty we default to the normal style. Since the render engine is replaced by Pango markup this field will change later on. Note widgets that allow marked up text can use markup to change the font style.
v_align	Vertical alignment; how an item is aligned vertically in the available space. Possible values: top bottom center When nothing is set or an another value as in the list the item is centered.
h_align	Horizontal alignment; how an item is aligned horizontal in the available space. Possible values: left right center
f_h_align	A horizontal alignment or a formula returning a horizontal alignment.
border	Comma separated list of borders to use. Possible values: left right top bottom all alias for "left, right, top, bottom"
scrollbar_mode	How to show the scrollbar of a widget. Possible values: always - The scrollbar is always shown, regardless whether it's required or not. never - The scrollbar is never shown, even not when needed. (Note when setting this mode dialogs might not properly fit anymore). auto - Shows the scrollbar when needed. The widget will reserve space for the scrollbar, but only show when needed. initial_auto - Like auto, but when the scrollbar is not needed the space is not reserved. Use auto when the list can be changed dynamically eg the game list in the lobby. For optimization you can also use auto when you really expect a scrollbar, but don't want it to be shown when not needed eg the language list will need a scrollbar on most screens.
resize_mode	Determines how an image is resized. Possible values: scale - The image is scaled smoothly. scale_sharp - The image is scaled with sharp (nearest neighbour) interpolation. This is good for sprites. stretch - The first row or column of pixels is copied over the entire image. (Can only be used to scale resize in one direction, else falls back to scale.) tile - The image is placed several times until the entire surface is filled. The last images are truncated. tile_center - like tile, except aligned so that one tile is always centered. tile_highres - like tile, except rendered at full output resolution in high-dpi contexts. This is useful for texturing effects, but final tile size will be unpredictable.
grow_direction	The direction in which newly added items will grow a container. Possible values: horizontal vertical

For more complex parts, there are sections. Sections contain of several lines of WML and can have sub sections. For example a grid has sub sections which contain various widgets. Here's the list of sections:

Variable	description
section	A generic section. The documentation about the section should describe the section in further detail.
grid	A grid contains several widgets.
config	.

Every widget has some parts in common. First of all, every definition has the following fields:

Key	Type	Default	Description
id	string	mandatory	Unique id for this gui (theme).
description	t_string	mandatory	Unique translatable name for this gui.
resolution	section	mandatory	The definitions of the widget in various resolutions.

Inside a grid (which is inside all container widgets) a widget is instantiated. With this instantiation some more variables of a widget can be tuned.