Class: RbSDL2::Event

Inherits:
Object
  • Object
show all
Extended by:
SingleForwardable
Includes:
EventType
Defined in:
lib/rb_sdl2/event/event.rb

Constant Summary

Constants included from EventType

RbSDL2::EventType::COMMON_EVENT_TYPES, RbSDL2::EventType::ENTITY_MAP, RbSDL2::EventType::NAME_MAP, RbSDL2::EventType::USER_EVENT_TYPES

Class Method Summary collapse

Instance Method Summary collapse

Methods included from EventType

#app_did_enter_background?, #app_did_enter_foreground?, #app_low_memory?, #app_terminating?, #app_will_enter_background?, #app_will_enter_foreground?, #audio_device_added?, #audio_device_removed?, #clipboard_update?, #controller_axis_motion?, #controller_button_down?, #controller_button_up?, #controller_device_added?, #controller_device_remapped?, #controller_device_removed?, #controller_sensor_update?, #controller_touchpad_down?, #controller_touchpad_motion?, #controller_touchpad_up?, disable, #display_event?, #dollar_gesture?, #dollar_record?, #drop_begin?, #drop_complete?, #drop_file?, #drop_text?, enable, #finger_down?, #finger_motion?, #finger_up?, ignore?, #joy_axis_motion?, #joy_ball_motion?, #joy_button_down?, #joy_button_up?, #joy_device_added?, #joy_device_removed?, #joy_hat_motion?, #key_down?, #key_up?, #keymap_changed?, #locale_changed?, #mouse_button_down?, #mouse_button_up?, #mouse_motion?, #mouse_wheel?, #multi_gesture?, #poll_sentinel?, #quit?, register_events, #render_device_reset?, #render_targets_reset?, #sensor_update?, #sys_wm_event?, #text_editing?, #text_editing_ext?, #text_input?, to_name, to_types, #user_event?, #window_event?

Constructor Details

#initialize(ptr) ⇒ Event

Returns a new instance of Event.



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# File 'lib/rb_sdl2/event/event.rb', line 47

def initialize(ptr)
  @ptr = ptr
  @entity = nil
  @obj = if drop_file? || drop_text?
           SDLPointer.new(entity[:file])
         elsif text_editing_ext?
           SDLPointer.new(entity[:text])
         elsif sys_wm_event? && entity[:msg].null?
           # msg に NULL があると SDL はこのポインターをチェックせずに読み出す。
           raise TypeError
         end
end

Class Method Details

.new(type:, **members) ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 34

def new(type:, **members)
  obj = super(EventPointer.new(type))
  members.each_pair { |sym, val| obj[sym] = val }
  obj
end

.quit? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rb_sdl2/event/event.rb', line 20

def quit?
  pump
  exist?(::SDL::QUIT)
end

.to_ptr(ptr) ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 40

def to_ptr(ptr)
  obj = allocate
  obj.__send__(:initialize, ptr)
  obj
end

Instance Method Details

#[](sym) ⇒ Object

SDL_SYSWMEVENT の msg はポインターです。このポインターの取り扱いはアプリケーションに委ねられます。 SDL_USEREVENT の data1, data2 はポインターです。このポインターの取り扱いはアプリケーションに委ねられます。



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# File 'lib/rb_sdl2/event/event.rb', line 62

def [](sym)
  obj = entity[sym]
  case sym
  when :data   then obj.to_a
  when :file   then if drop_file? || drop_text?
                      SDL.ptr_to_str(obj)
                    else
                      # SDL_EVENTBEGIN, SDL_DROPCOMPLETE はこのメンバー使用しない。
                      nil
                    end
  when :keysym then { scancode: obj[:scancode], sym: obj[:sym], mod: obj[:mod] }
  when :msg    then obj
  when :text   then SDL.ptr_to_str(obj.to_ptr)
  when :type   then type
  else obj
  end
end

#[]=(sym, val) ⇒ Object

SDL_SYSWMEVENT の msg への書き込みはできません。 SDL_USEREVENT の data1, data2 はポインターです。このポインターの取り扱いはアプリケーションに委ねられます。

Raises:

  • (FrozenError) 


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# File 'lib/rb_sdl2/event/event.rb', line 82

def []=(sym, val)
  raise FrozenError if frozen?

  case sym
  when :data   then entity[sym].tap { |st| val.each.with_index { |v, i| st[i] = v } }
  when :file   then if drop_file? || drop_text?
                      entity[sym] = @obj = SDLPointer.from_string(val)
                    else
                      # SDL_EVENTBEGIN, SDL_DROPCOMPLETE はこのメンバー使用しない。
                      raise TypeError
                    end
  when :keysym then entity[sym].tap { |st| val.each { |k, v| st[k] = v } }
  when :msg    then raise NotImplementedError
  when :text   then if text_editing_ext?
                      entity[sym] = @obj = SDLPointer.from_string(val)
                    else
                      ::SDL.utf8strlcpy(entity[sym].to_ptr, SDL.str_to_sdl(val), entity[sym].size)
                    end
  when :type   then raise TypeError
  else entity[sym] = val
  end
end

#initialize_copy(obj) ⇒ Object

clone, dup はディープコピーを行います。



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# File 'lib/rb_sdl2/event/event.rb', line 108

def initialize_copy(obj)
  super
  initialize(EventPointer.copy(obj.to_ptr))
end

#inspect ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 113

def inspect = "#<#{self.class.name}: #{name}>"

#member?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rb_sdl2/event/event.rb', line 115

def member?(name) = members.include?(name)

#members ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 117

def members = entity.members.grep_v(/\Apadding/)

#name ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 119

def name = EventType.to_name(type)

#to_h ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 121

def to_h = members.map { |sym| [sym, self[sym]] }.to_h

#to_ptr ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 123

def to_ptr = @ptr

#to_s ⇒ Object 



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# File 'lib/rb_sdl2/event/event.rb', line 125

def to_s = name.to_s

#type ⇒ Object Also known as: to_i 



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# File 'lib/rb_sdl2/event/event.rb', line 127

def type = @ptr.type