Class: Fzeet::BasicWindow

Inherits:
Handle
  • Object
show all
Includes:
WindowMethods
Defined in:
lib/fzeet/windows/user/Window/Common.rb

Constant Summary collapse

Prefix = 
{
  xstyle: [:ws_ex_],
  style: [:ws_, :ds_],
  message: [:wm_],
  notification: []
}
WindowProc = 
FFI::Function.new(:long, [:pointer, :uint, :uint, :long], convention: :stdcall) { |hwnd, uMsg, wParam, lParam|
  begin
    if uMsg == Windows::WM_NCCREATE
      @@instances[hwnd.to_i] = ObjectSpace._id2ref(
        Windows::CREATESTRUCT.new(FFI::Pointer.new(lParam))[:lpCreateParams].to_i
      )

      @@instances[hwnd.to_i].instance_variable_set(:@handle, hwnd)
    end

    result = @@instances[hwnd.to_i].windowProc(hwnd, uMsg, wParam, lParam) if @@instances[hwnd.to_i]
  rescue
    answer = Fzeet.message %Q{#{$!}\n\n#{$!.backtrace.join("\n")}}, buttons: [:abort, :retry, :ignore], icon: :error

    Application.quit if answer.abort?
  ensure
    if uMsg == Windows::WM_NCDESTROY
      @@instances[hwnd.to_i].dialog = false

      @@instances.delete(hwnd.to_i)
    end
  end

  result || Windows.DefWindowProc(hwnd, uMsg, wParam, lParam)
}
FrameProc = 
FFI::Function.new(:long, [:pointer, :uint, :uint, :long], convention: :stdcall) { |hwnd, uMsg, wParam, lParam|
  begin
    if uMsg == Windows::WM_NCCREATE
      @@instances[hwnd.to_i] = ObjectSpace._id2ref(
        Windows::CREATESTRUCT.new(FFI::Pointer.new(lParam))[:lpCreateParams].to_i
      )

      @@instances[hwnd.to_i].instance_variable_set(:@handle, hwnd)
    end

    if uMsg == Windows::WM_CREATE
      @@instances[hwnd.to_i].menu = Menu.new.
        append(:popup, '&Windows', PopupMenu.new.
          append(:string, 'Tile &Horizontal', :tileHorz).
          append(:string, 'Tile &Vertical', :tileVert).
          append(:string, '&Cascade', :cascade).
          append(:string, 'Arrange &Icons', :arrangeIcons)
        )

      ccs = Windows::CLIENTCREATESTRUCT.new

      ccs[:hWindowMenu] = @@instances[hwnd.to_i].menu.submenus[0].handle
      ccs[:idFirstChild] = 50000

      hwndClient = Windows.DetonateLastError(FFI::Pointer::NULL, :CreateWindowEx,
        0, 'MDIClient', nil, Fzeet.flags([:child, :clipsiblings, :clipchildren, :visible], :ws_),
        0, 0, 0, 0,
        hwnd, nil, Windows.GetModuleHandle(nil), ccs
      )

      @@instances[hwnd.to_i].instance_variable_set(:@client, Handle.wrap(hwndClient, WindowMethods))

      @@instances[hwnd.to_i].
        on(:command, :tileHorz) { Windows.TileWindows(hwndClient, Windows::MDITILE_HORIZONTAL, nil, 0, nil) }.
        on(:command, :tileVert) { Windows.TileWindows(hwndClient, Windows::MDITILE_VERTICAL, nil, 0, nil) }.
        on(:command, :cascade) { Windows.CascadeWindows(hwndClient, Windows::MDITILE_ZORDER, nil, 0, nil) }.
        on(:command, :arrangeIcons) { Windows.ArrangeIconicWindows(hwndClient) }.

        on(:initmenupopup) { |args|
          [:tileHorz, :tileVert, :cascade, :arrangeIcons].each { |command|
            @@instances[hwnd.to_i].menu[command].enabled = !Windows.GetWindow(hwndClient, Windows::GW_CHILD).null?
          }
        }
    end

    result = @@instances[hwnd.to_i].windowProc(hwnd, uMsg, wParam, lParam) if @@instances[hwnd.to_i]
  rescue
    answer = Fzeet.message %Q{#{$!}\n\n#{$!.backtrace.join("\n")}}, buttons: [:abort, :retry, :ignore], icon: :error

    Application.quit if answer.abort?
  ensure
    if uMsg == Windows::WM_NCDESTROY
      @@instances[hwnd.to_i].dialog = false

      @@instances.delete(hwnd.to_i)
    end
  end

  hwndClient = @@instances[hwnd.to_i] && @@instances[hwnd.to_i].client && @@instances[hwnd.to_i].client.handle

  result || Windows.DefFrameProc(hwnd, hwndClient, uMsg, wParam, lParam)
}
MDIChildProc = 
FFI::Function.new(:long, [:pointer, :uint, :uint, :long], convention: :stdcall) { |hwnd, uMsg, wParam, lParam|
  begin
    if uMsg == Windows::WM_NCCREATE
      @@instances[hwnd.to_i] = ObjectSpace._id2ref(
        Windows::MDICREATESTRUCT.new(
          Windows::CREATESTRUCT.new(FFI::Pointer.new(lParam))[:lpCreateParams]
        )[:lParam]
      )

      @@instances[hwnd.to_i].instance_variable_set(:@handle, hwnd)
    end

    result = @@instances[hwnd.to_i].windowProc(hwnd, uMsg, wParam, lParam) if @@instances[hwnd.to_i]
  rescue
    answer = Fzeet.message %Q{#{$!}\n\n#{$!.backtrace.join("\n")}}, buttons: [:abort, :retry, :ignore], icon: :error

    Application.quit if answer.abort?
  ensure
    if uMsg == Windows::WM_NCDESTROY
      @@instances[hwnd.to_i].dialog = false

      @@instances.delete(hwnd.to_i)
    end
  end

  result || Windows.DefMDIChildProc(hwnd, uMsg, wParam, lParam)
}
DialogProc = 
FFI::Function.new(:int, [:pointer, :uint, :uint, :long], convention: :stdcall) { |hwnd, uMsg, wParam, lParam|
  begin
    if uMsg == Windows::WM_INITDIALOG
      @@instances[hwnd.to_i] = ObjectSpace._id2ref(lParam)

      @@instances[hwnd.to_i].instance_variable_set(:@handle, hwnd)
    end

    result = @@instances[hwnd.to_i].windowProc(hwnd, uMsg, wParam, lParam) if @@instances[hwnd.to_i]
  rescue
    answer = Fzeet.message %Q{#{$!}\n\n#{$!.backtrace.join("\n")}}, buttons: [:abort, :retry, :ignore], icon: :error

    Application.quit if answer.abort?
  ensure
    if uMsg == Windows::WM_NCDESTROY
      @@instances[hwnd.to_i].dialog = false

      @@instances.delete(hwnd.to_i)
    end
  end

  (result.nil?) ? 0 : 1
}
WindowClass = 
Fzeet::WindowClass.new(nil, 'Fzeet.BasicWindow')

Constants included from WindowMethods

WindowMethods::EnumChildProc

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from WindowMethods

#[], #capture=, #capture?, #dialog=, #dialog?, #dlgmsg?, #drawMenuBar, #eachChild, #enabled=, #enabled?, #focus=, #focus?, #invalidate, #location, #location=, #long, #menu, #menu=, #message, #paint, #position, #position=, #postmsg, #question, #rect, #reframe, #sendmsg, #show, #size, #size=, #style, #style?, #text, #text=, #textlen, #topmost=, #topmost?, #update, #visible=, #visible?, #xstyle, #xstyle?

Methods included from Toggle

#toggle

Constructor Details

#initialize(opts = {}) {|_self, _opts| ... } ⇒ BasicWindow

Returns a new instance of BasicWindow.

Yields:

  • (_self, _opts)

Yield Parameters:



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 737

def initialize(opts = {})
  _opts = {
    xstyle: [],
    caption: Application.name,
    style: [],
    x: Windows::CW_USEDEFAULT,
    y: Windows::CW_USEDEFAULT,
    width: Windows::CW_USEDEFAULT,
    height: Windows::CW_USEDEFAULT,
    parent: nil,
    menu: nil,
    position: [],
    anchor: nil
  }
  badopts = opts.keys - _opts.keys; raise "Bad option(s): #{badopts.join(', ')}." unless badopts.empty?
  _opts.merge!(opts)

  yield self, _opts if block_given?

  _opts[:xstyle] = Fzeet.flags(_opts[:xstyle], *self.class::Prefix[:xstyle])
  _opts[:caption] = _opts[:caption].to_s
  _opts[:style] = Fzeet.flags(_opts[:style], *self.class::Prefix[:style])
  _opts[:x], _opts[:y], _opts[:width], _opts[:height] = _opts[:position] unless _opts[:position].empty?

  @messages ||= {}
  @commands ||= {}
  @notifies ||= {}

  @processed = [0, 0]

  @handle = Windows.CreateWindowEx(
    _opts[:xstyle],  self.class::WindowClass.name, _opts[:caption], _opts[:style],
    _opts[:x], _opts[:y], _opts[:width], _opts[:height],
    _opts[:parent] && _opts[:parent].handle, nil, Windows.GetModuleHandle(nil), FFI::Pointer.new(object_id)
  )

  if @handle.null?
    raise "CreateWindowEx failed (last error #{Windows.GetLastError()})." unless [
      [Windows::WM_NCCREATE, 0], [Windows::WM_CREATE, -1],
      [Windows::WM_DESTROY, 0], [Windows::WM_NCDESTROY, 0]
    ].include?(@processed)
  else
    @parent = _opts[:parent]
    self.menu = _opts[:menu] if _opts[:menu]

    on(:destroy) {
      menu.rdetach if self.menu

      eachChild(&:dispose)
    }

    case _opts[:anchor]
    when :ltr
      @parent.on(:size) { |args|
        self.position = @parent.rect.tap { |r| r[:bottom] = _opts[:height] }.to_a

        args[:result] = nil if @parent.class == MDIChild
      }
    when :lrb
      @parent.on(:size) { |args|
        self.position = @parent.rect.tap { |r| r[:top] = r[:bottom] - _opts[:height]; r[:bottom] = _opts[:height] }.to_a

        args[:result] = nil if @parent.class == MDIChild
      }
    when :ltrb
      @parent.on(:size) { |args|
        self.position = @parent.rect.to_a

        args[:result] = nil if @parent.class == MDIChild
      }
    else raise ArgumentError, "Bad anchor spec: #{_opts[:anchor]}."
    end if _opts[:anchor] && @parent
  end
end

Instance Attribute Details

#client ⇒ Object (readonly)

Returns the value of attribute client.



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 812

def client
  @client
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 812

def parent
  @parent
end

#ribbon ⇒ Object (readonly)

Returns the value of attribute ribbon.



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 812

def ribbon
  @ribbon
end

Class Method Details

.[](name, opts = {}) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 686

def self.[](name, opts = {})
  Class.new(self) {
    const_set(:WindowClass, Fzeet::WindowClass.new(self::WindowClass, name, opts))
  }
end

.crackMessage(hwnd, uMsg, wParam, lParam) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 692

def self.crackMessage(hwnd, uMsg, wParam, lParam)
  window = @@instances[hwnd.to_i]

  args = {
    hwnd: hwnd,
    uMsg: uMsg,
    wParam: wParam,
    lParam: lParam,
    result: (window.kind_of?(Dialog)) ? 1 : 0,
    window: window,
    sender: window
  }

  case uMsg
  when Windows::WM_CREATE
    args[:cs] = Windows::CREATESTRUCT.new(FFI::Pointer.new(lParam))
  when Windows::WM_NCCREATE
    args[:result] = 1
    args[:cs] = Windows::CREATESTRUCT.new(FFI::Pointer.new(lParam))
  when Windows::WM_COMMAND
    args[:command], args[:notification], args[:hctl] = Windows.LOWORD(wParam), Windows.HIWORD(wParam), FFI::Pointer.new(lParam)
    args[:sender] = @@instances[args[:hctl].to_i] unless args[:hctl].null?
  when Windows::WM_NOTIFY
    args[:nmh] = Windows::NMHDR.new(FFI::Pointer.new(lParam))
    args[:command], args[:notification], args[:hctl] = args[:nmh][:idFrom], args[:nmh][:code], args[:nmh][:hwndFrom]
    (args[:sender] = @@instances[args[:hctl].to_i]).class.crackNotification(args)
  when \
    Windows::WM_MOUSEMOVE,
    Windows::WM_LBUTTONDOWN, Windows::WM_LBUTTONUP, Windows::WM_LBUTTONDBLCLK,
    Windows::WM_RBUTTONDOWN, Windows::WM_RBUTTONUP, Windows::WM_RBUTTONDBLCLK,
    Windows::WM_MBUTTONDOWN, Windows::WM_MBUTTONUP, Windows::WM_MBUTTONDBLCLK,
    Windows::WM_CONTEXTMENU

    args[:x], args[:y] = Windows.GET_X_LPARAM(lParam), Windows.GET_Y_LPARAM(lParam)

    if uMsg == Windows::WM_CONTEXTMENU && args[:x] == -1
      Windows.DetonateLastError(0, :GetCursorPos, pt = Point.new)

      args[:keyboard], args[:x], args[:y] = true, pt[:x], pt[:y]
    end
  end

  args
end

Instance Method Details

#dispose ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 814

def dispose; Windows.DestroyWindow(@handle) end

#on(*args, &block) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 888

def on(*args, &block)
  args[0] =~ /^draw$/ and
    return onMessage(:paint) { |_args| paint { |dc| dc.select(*args[1..-1]) {
      case block.arity
      when 0; block.call
      when 1; block.call(dc)
      else block.call(dc, _args)
      end
    }}}

  case args.length
  when 1; onMessage(*args, &block)
  when 2, 3
    case Fzeet.constant(args.shift, :wm_)
    when Windows::WM_COMMAND; onCommand(*args, &block)
    when Windows::WM_NOTIFY; onNotify(*args, &block)
    else raise ArgumentError
    end
  else raise ArgumentError
  end
end

#onCommand(cmd, notification = :all, &block) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 870

def onCommand(cmd, notification = :all, &block)
  notification = Fzeet.constant(notification, *self[cmd].class::Prefix[:notification]) unless
    notification.kind_of?(Integer) || notification == :all

  (((@commands ||= {})[Command[cmd]] ||= {})[notification] ||= []) << block

  self
end

#onMessage(msg, &block) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 864

def onMessage(msg, &block)
  ((@messages ||= {})[Fzeet.constant(msg, :wm_)] ||= []) << block

  self
end

#onNotify(cmd, notification = :all, &block) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 879

def onNotify(cmd, notification = :all, &block)
  notification = Fzeet.constant(notification, *self[cmd].class::Prefix[:notification]) unless
    notification.kind_of?(Integer) || notification == :all

  (((@notifies ||= {})[Command[cmd]] ||= {})[notification] ||= []) << block

  self
end

#stubNotImplementedCommands ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 910

def stubNotImplementedCommands
  Command.instance_variable_get(:@ids).each { |command, id|
    next if @commands.find { |_id, handlers| _id == id }

    on(:command, id) { message "Not Implemented (#{command})", icon: :warning }
  }

  self
end

#windowProc(hwnd, uMsg, wParam, lParam) ⇒ Object 



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# File 'lib/fzeet/windows/user/Window/Common.rb', line 816

def windowProc(hwnd, uMsg, wParam, lParam)
  args, result = nil, nil

  if (handlers = @messages[uMsg])
    args ||= self.class.crackMessage(hwnd, uMsg, wParam, lParam)

    handlers.each { |handler|
      (handler.arity == 0) ? handler.call : handler.call(args)

      result = args[:result]; @processed[0], @processed[1] = uMsg, result
    }
  end

  if uMsg == Windows::WM_COMMAND && (handlers = @commands[Windows.LOWORD(wParam)])
    args ||= self.class.crackMessage(hwnd, uMsg, wParam, lParam)

    handlers[:all].each { |handler|
      (handler.arity == 0) ? handler.call : handler.call(args)

      result = args[:result]; @processed[0], @processed[1] = uMsg, result
    } if handlers[:all]

    handlers[Windows.HIWORD(wParam)].each { |handler|
      (handler.arity == 0) ? handler.call : handler.call(args)

      result = args[:result]; @processed[0], @processed[1] = uMsg, result
    } if handlers[Windows.HIWORD(wParam)]
  end

  if uMsg == Windows::WM_NOTIFY && (handlers = @notifies[(nmh = Windows::NMHDR.new(FFI::Pointer.new(lParam)))[:idFrom]])
    args ||= self.class.crackMessage(hwnd, uMsg, wParam, lParam)

    handlers[:all].each { |handler|
      (handler.arity == 0) ? handler.call : handler.call(args)

      result = args[:result]; @processed[0], @processed[1] = uMsg, result
    } if handlers[:all]

    handlers[nmh[:code]].each { |handler|
      (handler.arity == 0) ? handler.call : handler.call(args)

      result = args[:result]; @processed[0], @processed[1] = uMsg, result
    } if handlers[nmh[:code]]
  end

  result
end