Class: Knj::Gtk2

Inherits:
Object show all
Defined in:
lib/knj/gtk2.rb

Overview

Contains various methods for doing stuff quick using the Gtk2-extension.

Defined Under Namespace

Modules: Cb, Tv Classes: Menu, Msgbox, StatusWindow, Window

Class Method Summary collapse

Class Method Details

.const_missing(name) ⇒ Object

Autoloader.



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# File 'lib/knj/gtk2.rb', line 4

def self.const_missing(name)
  require "#{$knjpath}gtk2_#{name.to_s.downcase}"
  return Knj::Gtk2.const_get(name) if Knj::Gtk2.const_defined?(name)
  raise "Could not load constant: '#{name}'."
end

.form(paras) ⇒ Object

Makes a Gtk::Table based on the given arguments.

Examples

Knj::Gtk2.form([=> “text”, “name” => “txtname”, “title” => _(“Name”)]) #=> => <Gtk::Table>, “objects” => <Array>



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# File 'lib/knj/gtk2.rb', line 203

def self.form(paras)
  table = Gtk::Table.new(paras.length, 2)
  table.row_spacings = 4
  table.column_spacings = 4
  top = 0
  objects = {}
  
  paras.each do |item|
    if !item["type"]
      if item["name"][0..2] == "txt" or item["name"][0..2] == "tex"
        item["type"] = "text"
      elsif item["name"][0..2] == "sel"
        item["type"] = "select"
      elsif item["name"][0..2] == "che"
        item["type"] = "check"
      else
        raise "Could not figure out type for: '#{item["name"]}'."
      end
    end
    
    if item["type"] == "text" or item["type"] == "password"
      label = Gtk::Label.new(item["title"])
      label.xalign = 0
      text = Gtk::Entry.new
      
      if item["type"] == "password"
        text.visibility = false
      end
      
      if item["default"]
        text.text = item["default"]
      end
      
      table.attach(label, 0, 1, top, top + 1, Gtk::FILL, Gtk::FILL)
      table.attach(text, 1, 2, top, top + 1, Gtk::EXPAND | Gtk::FILL, Gtk::SHRINK)
      
      objects[item["name"]] = {
        "type" => "text",
        "object" => text
      }
    elsif item["type"] == "check"
      check = Gtk::CheckButton.new(item["title"])
      table.attach(check, 0, 2, top, top + 1, Gtk::EXPAND | Gtk::FILL, Gtk::SHRINK)
      
      objects[item["name"]] = {
        "type" => "check",
        "object" => check
      }
    elsif item["type"] == "select"
      label = Gtk::Label.new(item["title"])
      label.xalign = 0
      
      cb = Gtk::ComboBox.new
      cb.init(item["opts"])
      
      table.attach(label, 0, 1, top, top + 1, Gtk::FILL, Gtk::FILL)
      table.attach(cb, 1, 2, top, top + 1, Gtk::EXPAND | Gtk::FILL, Gtk::SHRINK)
      
      objects[item["name"]] = {
        "type" => "text",
        "object" => cb
      }
    else
      raise "Unknown type: '#{item["type"]}'."
    end
    
    
    top += 1
  end
  
  return {
    "table" => table,
    "objects" => objects
  }
end

.form_getval(object) ⇒ Object

Returns the value of an object regardless of that type the object is.

Examples

Knj::Gtk2.form_getval(text_obj) #=> “Hejsa” Knj::Gtk2.form_getval(checkbox_obj) #=> “1”



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# File 'lib/knj/gtk2.rb', line 301

def self.form_getval(object)
  if object.is_a?(Gtk::Entry)
    return object.text
  elsif object.is_a?(Gtk::CheckButton)
    if object.active?
      return "1"
    else
      return "0"
    end
  elsif object.is_a?(Gtk::ComboBox)
    sel = object.sel
    return sel["text"]
  else
    raise "Unknown object: '#{object.class.name}'."
  end
end

.form_setval(object, val) ⇒ Object

Takes a given object and sets its value.

Examples

Knj::Gtk2.form_setval(text_obj, “Hejsa”) Knj::Gtk2.form_setval(checkbox_obj, 1)



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# File 'lib/knj/gtk2.rb', line 283

def self.form_setval(object, val)
  if object.is_a?(Gtk::Entry)
    object.text = val.to_s
  elsif object.is_a?(Gtk::CheckButton)
    if val.to_s == "1"
      object.active = true
    else
      object.active = false
    end
  elsif object.is_a?(Gtk::ComboBox)
    object.sel = val.to_s
  end
end

.msgbox(paras, type = "warning", title = nil) ⇒ Object

Shows a dialog on the screen based on various arguments.

Examples

Knj::Gtk2.msgbox(“Message”, “Title”, “info”) Knj::Gtk2.msgbox(“Question”, “Title”, “yesno”) #=> “yes”|“no”|“cancel”|“close”



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# File 'lib/knj/gtk2.rb', line 11

def self.msgbox(*args, &block)
  return Knj::Gtk2.msgbox(*args, &block)
end

.translate(builderob) ⇒ Object

Takes a Gtk::Builder-object and runs labels and titles through GetText.gettext in order to translate them.

Examples

Knj::Gtk2.translate(builder_obj)



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# File 'lib/knj/gtk2.rb', line 188

def self.translate(builderob)
  builderob.objects.each do |object|
    class_str = object.class.to_s
    
    if object.is_a?(Gtk::Label) or object.is_a?(Gtk::Button)
      object.label = GetText.gettext(object.label) if !object.label.to_s.strip.empty?
    elsif object.is_a?(Gtk::Window)
      object.title = GetText.gettext(object.title) if !object.title.to_s.strip.empty?
    end
  end
end