Prima::VB::CfgMaint - maintains visual builder widget palette configuration.
The module is used by the Visual Builder and
prima-cfgmaint programs, to maintain the Visual Builder widget palette. The installed widgets are displayed in main panel of the Visual Builder, and can be maintained by
The Visual Builder widget palette configuration is contained in two files - the system-wide
Prima::VB::Config and the user
~/.prima/vbconfig. The user config file take the precedence when loaded by the Visual Builder. The module can select either configuration by assigning
$systemWide boolean property.
The widgets are grouped in pages, which are accessible by names.
New widgets can be added to the palette by calling
add_module method, which accepts a perl module file as its first parameter. The module must conform to the VB-loadable format.
This section describes format of a module with VB-loadable widgets.
The module must define a package with same name as the module. In the package,
class sub must be declared, that returns an array or paired scalars, where each first item in a pair corresponds to the widget class and the second to a hash, that contains the class loading information, and must contain the following keys:
- class STRING
Name of the VB-representation class, which represents the original widget class in the Visual Builder. This is usually a lightweight class, which does not contain all functionality of the original class, but is capable of visually reflecting changes to the class properties.
- icon PATH
Sets an image file, where the class icon is contained. PATH provides an extended syntax for indicating a frame index, if the image file is multiframed: the frame index is appended to the path name with
:character prefix, for example:
- module STRING
Sets the module name, that contains
- page STRING
Sets the default palette page where the widget is to be put. The current implementation of the Visual Builder provides four pages:
General,Additional,Sliders,Abstract. If the page is not present, new page is automatically created when the widget class is registered.
- RTModule STRING
Sets the module name, that contains the original class.
The reader is urged to explore Prima::VB::examples::Widgety file, which contains an example class
Prima::SampleWidget, its VB-representation, and a property
lineRoundStyle definition example.
- add_module FILE
Reads FILE module and loads all VB-loadable widgets from it.
Returns string declaration of all registered classes in format of
classesregistration procedure ( see "FORMAT" ).
Loads class and pages information from either a system-wide or a user configuration file. If succeeds, the information is stored in
%classesvariables ( the old information is lost ) and returns 1. If fails, returns 0 and string with the error explanation;
%classescontent is undefined.
Returns array of page names
Reads information from both system-wide and user configuration files, and merges the information. If succeeds, returns 1. If fails, returns 0 and string with the error explanation.
Erases all information about pages and classes.
Writes either the system-wide or the user configuration file. If
$backupflag is set to 1, the old file renamed with
.bakextension. If succeeds, returns 1. If fails, returns 0 and string with the error explanation.
Dmitry Karasik, <email@example.com>.