Class: Fzeet::WindowClass

Inherits:

Fzeet::Windows::WNDCLASSEX

• Object
• FFI::Struct
• Fzeet::Windows::WNDCLASSEX
• Fzeet::WindowClass

Defined in:

lib/fzeet/windows/user/Window/Common.rb

Instance Attribute Summary

• #name ⇒ Object readonly

  Returns the value of attribute name.

• #prototype ⇒ Object readonly

  Returns the value of attribute prototype.

Instance Method Summary

• #initialize(prototype, name, opts = {}) ⇒ WindowClass constructor

  A new instance of WindowClass.

Constructor Details

#initialize(prototype, name, opts = {}) ⇒ WindowClass

Returns a new instance of WindowClass.

# File 'lib/fzeet/windows/user/Window/Common.rb', line 484

def initialize(prototype, name, opts = {})
	@prototype = prototype
	@name = name
	className = FFI::MemoryPointer.from_string(@name)

	_opts = {
		style: [],
		wndProc: BasicWindow::WindowProc,
		clsExtra: 0,
		wndExtra: 0,
		icon: SystemIcon.new(:application),
		cursor: SystemCursor.new(:arrow),
		background: SystemBrush.new(:window),
		iconSm: nil
	}
	badopts = opts.keys - _opts.keys; raise "Bad option(s): #{badopts.join(', ')}." unless badopts.empty?

	self[:cbSize] = Windows::WNDCLASSEX.size
	self[:hInstance] = Windows.GetModuleHandle(nil)
	self[:lpszClassName] = className

	if @prototype
		self[:style] = Fzeet.flags(opts[:style] || [], :cs_) | @prototype[:style]
		self[:lpfnWndProc] = opts[:wndProc] || @prototype[:lpfnWndProc]
		self[:cbClsExtra] = (opts[:clsExtra] || 0) + @prototype[:cbClsExtra]
		self[:cbWndExtra] = (opts[:wndExtra] || 0) + @prototype[:cbWndExtra]
		self[:hIcon] = (opts[:icon] && opts[:icon].handle) || @prototype[:hIcon]
		self[:hCursor] = (opts[:cursor] && opts[:cursor].handle) || @prototype[:hCursor]
		self[:hbrBackground] = (opts[:background] && opts[:background].handle) || @prototype[:hbrBackground]
		self[:hIconSm] = (opts[:iconSm] && _opts[:iconSm].handle) || @prototype[:hIconSm]
	else
		_opts.merge(opts)

		self[:style] = Fzeet.flags(_opts[:style], :cs_)
		self[:lpfnWndProc] = _opts[:wndProc]
		self[:cbClsExtra] = _opts[:clsExtra]
		self[:cbWndExtra] = _opts[:wndExtra]
		self[:hIcon] = _opts[:icon].handle
		self[:hCursor] = _opts[:cursor].handle
		self[:hbrBackground] = _opts[:background].handle
		self[:hIconSm] = _opts[:iconSm] && _opts[:iconSm].handle
	end

	Windows.DetonateLastError(0, :RegisterClassEx, self) { className.free }
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.

# File 'lib/fzeet/windows/user/Window/Common.rb', line 530

def name
  @name
end

#prototype ⇒ Object (readonly)

Returns the value of attribute prototype.

# File 'lib/fzeet/windows/user/Window/Common.rb', line 530

def prototype
  @prototype
end