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php-libui

PHP bindings to the libui C library.

libui is a lightweight, portable GUI library that uses the native GUI technologies of each platform it supports.

Requirements

• PHP >= 8.1
• PHP FFI extension available
• libui latest version

A Simple Example

see https://github.com/chopins/http-request

first download libui dynamic library from https://github.com/andlabs/libui/releases or checkout source for self-build, then load in php code use following code

Note: When Call libui C function need remove ui prefix of name, then to lower case first char

Use UIBuild create UI

Basic Usage:

build config structure

• build config is xml file, see tests/uibuild.xml
• In xml file, all event attribute name must be prefix on, onclick,onchange,ondraw, value is callable name, it is not Event instance, callable name support php variable and php callable:$var,func_name,CLASS::method, do not support array callable. variable is GLOBALS
• attr value support GLOBALS variable and constant, prefix $``@ as $var or @CONST
• also build config support array, main key contain body,menu and window attribute key; in config array, element key is attr name, element value is attr value,similar the following:

window attribute key list:

menu array

The array level 1 of item element is one menu, similar:

Top menu only contain title, id, childs , the title value will display in window, every element of childs array is submenu that display in drop-down menu. if element is string and equral hr will display a separator current Build UI Config of submenu only contain the following attr:

body array

every element key of body array is control config, widget element is control name and attr element is control attr. see examples/table.php Build UI current only support the following control:

1. button, Button control,contain the following attr:

   attr	type	Description	require
   type	string	control type, smiliar HTML <button> tag of type attr, potential value is following: 1. file, open file button 2. save, save file button 3. font, select font button 4. color, select color button 5. button, is default value	yes
   title	string	button label name	yes
   click	\UI\Event	when click callback, when type file and save is after select file call	no
   change	\UI\Event	only when color and font available, select color or font be call	no
   id	string		no

2. box box layout,the following attr:

   attr	type	Description	require
   dir	string	layout direction, Specify one of h is horizontal and default value, v is vertical	yes
   padded	int	padding value, default is 0	no
   child_fit	int	Whether to automatically adapt	no
   childs	array	sub control list	no
   id	string		no

3. group group layout, have title and margin, child,id attr
4. label text control, only has title and id attr
5. hr horizontal separator, no attr
6. vr vertical separator, no attr

7. input input control, the following attr:

   attr	type	Description	require
   type	string	miliar HTML <input> tag of type attr, specify one of the following value: 1. password password entry control 2. search search entry control 3. textarea multiline entry control 4. radio radio 5. select select 6. checkbox checkbox 7. text, is default value 8.number is Spinbox 9.slider	yes
   readonly	bool	whether readonly	no
   wrap	bool	only textarea is available, false is non wrapping textarea	no
   option	array	radio and select available, element value is option title, key is natural order number	no
   change	\UI\Event	exclude checkbox and radio	no
   title	string	checkbox available	yes
   click	\UI\Event	only radio and checkbox available	no
   min	int	number and slider available	yes
   max	int	number and slider available	yes
   id	string		no
   editable	bool	select available	no

8. form form layout, has padded, childs,id attr, child widget has label attr

9. grid grid layout, the following attr:

   attr	type	Description	require
   padded	int		no
   child_left	int		no
   child_top	int		no
   child_width	int		no
   child_height	int		no
   child_hexpand	int		no
   child_halign	int		no
   child_vexpand	int		no
   child_valign	int		no
   childs	array		no
   id	string		no

10. table table control, table cell has change event, it is following sub key :

    attr	type	Description	require
    th	array	every element of value is array, key is id, has the following attr: 1. editable, bool type, the column is whether editable 2. textColor 3. title 4. type, specify value of button, image, imgtext, progress, checkbox, checkboxtext, color, text 5. widget has change attr, for row column change callback	yes
    tbody	array	the table row value list, every element is one row value, when row of column is array has the following attr: 1. image type, has src width height 2. color type has r,g,b 3. rowBgcolor	yes
    id	string		no

11. tab tab control, has page sub array, page array every element value is page child control and key is page title

12. img image control, has flowing attr:

    attr	type	Description	require
    src	array	is image paths list, every element value is image file path, key is natural order number	yes
    width	int	the image control width, default is src first element image width	no
    height	int	the image control heigth, default is src first element image width	no
    id	string		no

13. datetime datetime control

    attr	type	description	require
    type	string	specify one of value time,date,datetime	yes
    change	\UI\Event		no
    id	string		no

14. progress, has id attr
15. area,canvas create Area
16. attribute create Attribute
17. drawtext create TextLayout
18. string create a AttributeString
19. unsupport control must call libui C function by UI\UI
20. UI\Event, all event callback class, The signature of the callback is as follows:

Control common method:

• show()
• hide()
• enable()
• disable()
• destroy()
• parent()
• setParent($parent)
• isVisible()
• isEnabled()

specify control see class statement in control directory

UI method

see UI.php

UIBuild method

see UIBuild.php