Module: Wx

Defined in:
lib/wx/helpers.rb,
lib/wx/version.rb,
lib/wx/keyword_defs.rb,
lib/wx/keyword_ctors.rb,
lib/wx/classes/functions.rb

Overview

Tweaks to the global module functions

Defined Under Namespace

Modules: KeywordConstructor Classes: AcceleratorTable, Animation, App, ArtProvider, AuiNotebook, Bitmap, BusyCursor, CheckListBox, Choice, ClientDC, Clipboard, Colour, ComboBox, CommandEvent, ControlWithItems, DC, Event, EvtHandler, Font, Grid, HelpController, HelpControllerHelpProvider, HelpProvider, HtmlHelpController, HtmlWindow, Icon, IconBundle, Image, ImageList, ListBox, ListCtrl, Locale, MediaCtrl, Menu, MenuItem, Notebook, Object, PaintDC, Parameter, Point, PreviewFrame, Rect, SimpleHelpProvider, Size, Sizer, Sound, TextCtrl, TextUrlEvent, Timer, ToolBar, ToolBarTool, TreeCtrl, Window, XmlResource

Constant Summary collapse

WXRUBY_VERSION = 
'1.9.8'
Gauge95 = 
Wx::Gauge
WHITE =

Standard colours, corresponding to WxWidgets stock colours.

new(255, 255, 255)
BLACK = 
new(0, 0, 0)
RED = 
new(255, 0, 0)
GREEN = 
new(0, 255, 0)
BLUE = 
new(0, 0, 255)
YELLOW = 
new(255, 255, 0)
MAGENTA = 
new(255, 0, 255)
CYAN = 
new(0, 255, 255)
LIGHT_GREY = 
new(192, 192, 192)

Class Method Summary collapse

Class Method Details

.args_as_list(param_spec, *mixed_args) ⇒ Object

Convert mixed positional / named args into a list to be passed to an underlying API method. param_spec is an Array of Parameter structs containing the keyword name and default value for each possible argument. mixed_args is an array which may optionally end with a set of named arguments



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# File 'lib/wx/helpers.rb', line 12

def self.args_as_list(param_spec, *mixed_args)
  # get keyword arguments from mixed args if supplied, else empty
  kwa = mixed_args.last.kind_of?(Hash) ? mixed_args.pop : {}
  out_args = []
  param_spec.each_with_index do | param, i |
    if arg = mixed_args[i] # use the supplied list arg 
      out_args << arg
    elsif kwa.key?(param.name) # use the keyword arg
      out_args << kwa[param.name]
    else # use the default argument
      out_args << param.default
    end
  end
  out_args
rescue
  Kernel.raise ArgumentError, 
               "Bad arg composition of #{mixed_args.inspect}"
end

.define_keyword_ctors(klass_name, &block) ⇒ Object

accepts a string unadorned name of a WxWidgets class, and block, which defines the constructor parameters and style flags for that class. If the named class exists in the available WxRuby, the block is run and the class may use keyword constructors. If the class is not available, the block is ignored.



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# File 'lib/wx/keyword_defs.rb', line 27

def self.define_keyword_ctors(klass_name, &block)
  # check this class hasn't already been defined
  if @defined_kw_classes[klass_name]
    raise ArgumentError, "Keyword ctor for #{klass_name} already defined"
  else
    @defined_kw_classes[klass_name] = true
  end

  begin     
    klass =  Wx::const_get(klass_name)
  rescue NameError
    return nil
  end
  klass.module_eval { include Wx::KeywordConstructor }
  klass.instance_eval(&block)
end