#==============================================================================
# ★ Fullscreen++ Multi-Monitor Edition v2.33 for RPG Maker VX
#   F12 재시작 후 검은 배경 고정 버그 완전 수정
#   F5 = 전체화면 토글   F6 = 창 모드 배율 변경
#==============================================================================

$imported ||= {}
$imported[:Zeus_Fullscreen_MultiMonitor_VX] = true

class << Graphics
  Disable_VX_Fullscreen = true   # true = Alt+Enter 기본 전체화면 비활성화

  # Win32API 정의
  unless defined?(CreateWindowEx)
    CreateWindowEx            = Win32API.new('user32', 'CreateWindowEx', 'ippiiiiiiiii', 'i')
    GetClientRect             = Win32API.new('user32', 'GetClientRect', 'ip', 'i')
    GetDC                     = Win32API.new('user32', 'GetDC', 'i', 'i')
    GetWindowRect             = Win32API.new('user32', 'GetWindowRect', 'ip', 'i')
    FillRect                  = Win32API.new('user32', 'FillRect', 'ipi', 'i')
    FindWindow                = Win32API.new('user32', 'FindWindow', 'pp', 'i')
    ReleaseDC                 = Win32API.new('user32', 'ReleaseDC', 'ii', 'i')
    SendInput                 = Win32API.new('user32', 'SendInput', 'ipi', 'i')
    SetWindowLong             = Win32API.new('user32', 'SetWindowLong', 'iii', 'i')
    SetWindowPos              = Win32API.new('user32', 'SetWindowPos', 'iiiiiii', 'i')
    ShowWindow                = Win32API.new('user32', 'ShowWindow', 'ii', 'i')
    UpdateWindow              = Win32API.new('user32', 'UpdateWindow', 'i', 'i')
    DestroyWindow             = Win32API.new('user32', 'DestroyWindow', 'i', 'i')  # ← 추가
    GetPrivateProfileString   = Win32API.new('kernel32', 'GetPrivateProfileString', 'ppppip', 'i')
    WritePrivateProfileString = Win32API.new('kernel32', 'WritePrivateProfileString', 'pppp', 'i')
    CreateSolidBrush          = Win32API.new('gdi32', 'CreateSolidBrush', 'i', 'i')
    DeleteObject              = Win32API.new('gdi32', 'DeleteObject', 'i', 'i')

    MonitorFromRect           = Win32API.new('user32', 'MonitorFromRect', 'pi', 'i')
    GetMonitorInfoA           = Win32API.new('user32', 'GetMonitorInfoA', 'lp', 'i')
  end

  HWND = FindWindow.call('RGSS Player', 0)
  
  # BackHWND를 변수로 관리 (재시작 대비)
  @back_hwnd = nil

  def back_hwnd
    return @back_hwnd if @back_hwnd && @back_hwnd != 0
    
    @back_hwnd = CreateWindowEx.call(0x08000008, 'Static', '', 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0)
    @back_hwnd
  end

  def destroy_back_hwnd
    if @back_hwnd && @back_hwnd != 0
      ShowWindow.call(@back_hwnd, 0)
      DestroyWindow.call(@back_hwnd)
      @back_hwnd = nil
    end
  end

  unless method_defined?(:zeus_fullscreen_update)
    alias zeus_fullscreen_resize_screen resize_screen
    alias zeus_fullscreen_update        update
  end

  #==========================================================================
  # ● 현재 모니터 정보
  #==========================================================================
  def current_monitor_info
    rect_buf = "    " * 4
    GetWindowRect.call(HWND, rect_buf)
    left, top, right, bottom = rect_buf.unpack('l4')
    rect_struct = [left, top, right, bottom].pack('l4')

    hmonitor = MonitorFromRect.call(rect_struct, 2)

    mi = [40, 0,0,0,0, 0,0,0,0, 0,0,0,0].pack('l*') + "\0"*32
    GetMonitorInfoA.call(hmonitor, mi)

    mon_l, mon_t, mon_r, mon_b = mi[4, 16].unpack('l4')
    work_l, work_t, work_r, work_b = mi[20, 16].unpack('l4')

    {
      :full_rect => Rect.new(mon_l, mon_t, mon_r - mon_l, mon_b - mon_t),
      :work_rect => Rect.new(work_l, work_t, work_r - work_l, work_b - work_t)
    }
  end

  private
  def initialize_fullscreen_rects
    @borders_size  ||= borders_size
    info = current_monitor_info
    @fullscreen_rect = info[:full_rect]
    @workarea_rect   = info[:work_rect]
  end

  def borders_size
    GetWindowRect.call(HWND, wrect = [0,0,0,0].pack('l4'))
    GetClientRect.call(HWND, crect = [0,0,0,0].pack('l4'))
    w = wrect.unpack('l4')
    c = crect.unpack('l4')
    Rect.new(0, 0, w[2]-w[0]-c[2], w[3]-w[1]-c[3])
  end

  def position_back_window
    return unless @fullscreen && @fullscreen_rect
    info = current_monitor_info
    x, y = info[:full_rect].x, info[:full_rect].y
    w, h = info[:full_rect].width, info[:full_rect].height
    SetWindowPos.call(back_hwnd, HWND, x, y, w, h, 0x0004)  # HWND_TOP
  end

  def hide_borders()  SetWindowLong.call(HWND, -16, 0x14000000) end
  def show_borders()  SetWindowLong.call(HWND, -16, 0x14CA0000) end

  def hide_back
    ShowWindow.call(back_hwnd, 0) if @back_hwnd
  end

  def show_back
    initialize_fullscreen_rects
    hwnd = back_hwnd
    ShowWindow.call(hwnd, 3)      # SW_SHOWMAXIMIZED
    UpdateWindow.call(hwnd)
    
    dc = GetDC.call(hwnd)
    rect = [0, 0, @fullscreen_rect.width, @fullscreen_rect.height].pack('l4')
    brush = CreateSolidBrush.call(0)  # black
    FillRect.call(dc, rect, brush)
    ReleaseDC.call(hwnd, dc)
    DeleteObject.call(brush)

    position_back_window
  end

  def resize_window(w, h)
    initialize_fullscreen_rects

    if @fullscreen
      x = @fullscreen_rect.x + (@fullscreen_rect.width  - w) / 2
      y = @fullscreen_rect.y + (@fullscreen_rect.height - h) / 2
      z = -1
      position_back_window
    else
      w += @borders_size.width
      h += @borders_size.height
      x = @workarea_rect.x + (@workarea_rect.width  - w) / 2
      y = @workarea_rect.y + (@workarea_rect.height - h) / 2
      z = -2
      hide_back()
    end
    SetWindowPos.call(HWND, z, x.to_i, y.to_i, w.to_i, h.to_i, 0)
  end

  def release_alt
    inputs = [1,18,2, 1,164,2, 1,165,2].pack('LSx2Lx16'*3)
    SendInput.call(3, inputs, 28)
  end

  public
  def load_fullscreen_settings
    # F12 재시작 시 이전 백그라운드 완전 제거
    destroy_back_hwnd if @fullscreen == nil  # 처음 로드될 때만 강제 정리

    buffer = [].pack('x256')
    section = 'Fullscreen++'
    filename = './Game.ini'
    get_option = Proc.new do |key, default|
      l = GetPrivateProfileString.call(section, key, default.to_s, buffer, buffer.size, filename)
      buffer[0, l]
    end

    @fullscreen       = get_option.call('Fullscreen', '0') == '1'
    @fullscreen_ratio = get_option.call('FullscreenRatio', '0').to_i
    @windowed_ratio   = get_option.call('WindowedRatio', '1').to_i

    toggle_vx_fullscreen if Disable_VX_Fullscreen && vx_fullscreen?
    
    # 강제 초기화
    @fullscreen = false
    windowed_mode
  end

  def save_fullscreen_settings
    section = 'Fullscreen++'
    filename = './Game.ini'
    set = Proc.new { |k, v| WritePrivateProfileString.call(section, k, v.to_s, filename) }
    set.call('Fullscreen',      @fullscreen ? 1 : 0)
    set.call('FullscreenRatio', @fullscreen_ratio)
    set.call('WindowedRatio',   @windowed_ratio)
  end

  def fullscreen?; @fullscreen || vx_fullscreen?; end

  def vx_fullscreen?
    @fullscreen_rect && @fullscreen_rect.width == 640 && @fullscreen_rect.height == 480
  end

  def toggle_fullscreen
    fullscreen? ? windowed_mode : fullscreen_mode
  end

  def fullscreen_mode
    return if vx_fullscreen?
    @fullscreen = true
    show_back
    hide_borders
    self.ratio += 0
    save_fullscreen_settings
  end

  def windowed_mode
    toggle_vx_fullscreen if vx_fullscreen?
    @fullscreen = false
    hide_back
    show_borders
    self.ratio += 0
    save_fullscreen_settings
  end

  def toggle_ratio
    return if vx_fullscreen?
    self.ratio += 1
  end

  def ratio
    return 1 if vx_fullscreen?
    @fullscreen ? @fullscreen_ratio : @windowed_ratio
  end

  def ratio=(r)
    return if vx_fullscreen?
    initialize_fullscreen_rects
    r = 0 if r < 0

    if @fullscreen
      @fullscreen_ratio = r
      w_max = @fullscreen_rect.width
      h_max = @fullscreen_rect.height
    else
      @windowed_ratio = r
      w_max = @workarea_rect.width  - @borders_size.width
      h_max = @workarea_rect.height - @borders_size.height
    end

    if r == 0
      w = w_max
      h = (w_max * height.to_f / width).to_i
      if h > h_max
        h = h_max
        w = (h_max * width.to_f / height).to_i
      end
    else
      w = width * r
      h = height * r
      return self.ratio = 0 if w > w_max || h > h_max
    end

    resize_window(w, h)
    save_fullscreen_settings
  end

  def update
    release_alt if Disable_VX_Fullscreen && Input.trigger?(Input::ALT)
    zeus_fullscreen_update
    toggle_fullscreen if Input.trigger?(Input::F5)
    toggle_ratio      if Input.trigger?(Input::F6)
  end

  def resize_screen(width, height)
    zeus_fullscreen_resize_screen(width, height)
    self.ratio += 0
  end
end

# 시작 시 초기화
Graphics.load_fullscreen_settings

#==============================================================================
# ★ Fullscreen++ Multi-Monitor Edition v2.32
#   멀티모니터에서 검은 배경도 정확히 현재 모니터에만 적용
#   F5 = 전체화면 토글   F6 = 창 모드 배율 변경
#==============================================================================

$imported ||= {}
$imported[:Zeus_Fullscreen_MultiMonitor] = true

class << Graphics
  Disable_VX_Fullscreen = false

  # Win32API (중복 방지)
  unless defined?(CreateWindowEx)
    CreateWindowEx            = Win32API.new('user32', 'CreateWindowEx', 'ippiiiiiiiii', 'i')
    GetClientRect             = Win32API.new('user32', 'GetClientRect', 'ip', 'i')
    GetDC                     = Win32API.new('user32', 'GetDC', 'i', 'i')
    GetSystemMetrics          = Win32API.new('user32', 'GetSystemMetrics', 'i', 'i')
    GetWindowRect             = Win32API.new('user32', 'GetWindowRect', 'ip', 'i')
    FillRect                  = Win32API.new('user32', 'FillRect', 'ipi', 'i')
    FindWindow                = Win32API.new('user32', 'FindWindow', 'pp', 'i')
    ReleaseDC                 = Win32API.new('user32', 'ReleaseDC', 'ii', 'i')
    SendInput                 = Win32API.new('user32', 'SendInput', 'ipi', 'i')
    SetWindowLong             = Win32API.new('user32', 'SetWindowLong', 'iii', 'i')
    SetWindowPos              = Win32API.new('user32', 'SetWindowPos', 'iiiiiii', 'i')
    ShowWindow                = Win32API.new('user32', 'ShowWindow', 'ii', 'i')
    SystemParametersInfo      = Win32API.new('user32', 'SystemParametersInfo', 'iipi', 'i')
    UpdateWindow              = Win32API.new('user32', 'UpdateWindow', 'i', 'i')
    GetPrivateProfileString   = Win32API.new('kernel32', 'GetPrivateProfileString', 'ppppip', 'i')
    WritePrivateProfileString = Win32API.new('kernel32', 'WritePrivateProfileString', 'pppp', 'i')
    CreateSolidBrush          = Win32API.new('gdi32', 'CreateSolidBrush', 'i', 'i')
    DeleteObject              = Win32API.new('gdi32', 'DeleteObject', 'i', 'i')

    MonitorFromRect           = Win32API.new('user32', 'MonitorFromRect', 'pi', 'i')
    GetMonitorInfoA           = Win32API.new('user32', 'GetMonitorInfoA', 'lp', 'i')
  end

  HWND = FindWindow.call('RGSS Player', 0)
  BackHWND = CreateWindowEx.call(0x08000008, 'Static', '', 0x80000000, 0, 0, 0, 0, 0, 0, 0, 0)

  unless method_defined?(:zeus_fullscreen_update)
    alias zeus_fullscreen_resize_screen resize_screen
    alias zeus_fullscreen_update        update
  end

  #==========================================================================
  # ● 현재 모니터 정보 (full_rect = 전체화면용)
  #==========================================================================
  def current_monitor_info
    rect_buf = "    " * 4
    GetWindowRect.call(HWND, rect_buf)
    left, top, right, bottom = rect_buf.unpack('l4')
    rect_struct = [left, top, right, bottom].pack('l4')

    hmonitor = MonitorFromRect.call(rect_struct, 2)

    mi = [40, 0,0,0,0, 0,0,0,0, 0,0,0,0].pack('l*') + "\0"*32
    GetMonitorInfoA.call(hmonitor, mi)

    mon_l, mon_t, mon_r, mon_b = mi[4, 16].unpack('l4')
    work_l, work_t, work_r, work_b = mi[20, 16].unpack('l4')

    {
      full_rect: Rect.new(mon_l, mon_t, mon_r - mon_l, mon_b - mon_t),
      work_rect: Rect.new(work_l, work_t, work_r - work_l, work_b - work_t)
    }
  end

  private
  def initialize_fullscreen_rects
    @borders_size  ||= borders_size
    info = current_monitor_info
    @fullscreen_rect = info[:full_rect]
    @workarea_rect   = info[:work_rect]
  end

  def borders_size
    GetWindowRect.call(HWND, wrect = [0,0,0,0].pack('l4'))
    GetClientRect.call(HWND, crect = [0,0,0,0].pack('l4'))
    w = wrect.unpack('l4')
    c = crect.unpack('l4')
    Rect.new(0, 0, w[2]-w[0]-c[2], w[3]-w[1]-c[3])
  end

  # ★★★ 핵심 수정: BackHWND를 현재 모니터 전체로 정확히 이동 ★★★
  def position_back_window
    return unless @fullscreen && @fullscreen_rect
    info = current_monitor_info
    x, y = info[:full_rect].x, info[:full_rect].y
    w, h = info[:full_rect].width, info[:full_rect].height

    # BackHWND를 현재 모니터 전체 영역으로 이동 + 크기 조정
    SetWindowPos.call(BackHWND, HWND, x, y, w, h, 0x0004)  # SWP_NOZORDER + SWP_NOACTIVATE
  end

  def hide_borders()  SetWindowLong.call(HWND, -16, 0x14000000) end
  def show_borders()  SetWindowLong.call(HWND, -16, 0x14CA0000) end
  def hide_back()     ShowWindow.call(BackHWND, 0) end

  def show_back
    ShowWindow.call(BackHWND, 3)
    UpdateWindow.call(BackHWND)
    dc = GetDC.call(BackHWND)
    rect = [0, 0, @fullscreen_rect.width, @fullscreen_rect.height].pack('l4')
    brush = CreateSolidBrush.call(0)          # 검은색 브러시
    FillRect.call(dc, rect, brush)
    ReleaseDC.call(BackHWND, dc)
    DeleteObject.call(brush)

    position_back_window                      # ← 여기서 위치 보정
  end

  def resize_window(w, h)
    info = current_monitor_info
    @fullscreen_rect = info[:full_rect]
    @workarea_rect   = info[:work_rect]

    if @fullscreen
      x = @fullscreen_rect.x + (@fullscreen_rect.width  - w) / 2
      y = @fullscreen_rect.y + (@fullscreen_rect.height - h) / 2
      z = -1
      position_back_window                    # 전체화면일 때 BackHWND도 다시 위치
    else
      w += @borders_size.width
      h += @borders_size.height
      x = @workarea_rect.x + (@workarea_rect.width  - w) / 2
      y = @workarea_rect.y + (@workarea_rect.height - h) / 2
      z = -2
      hide_back()
    end
    SetWindowPos.call(HWND, z, x.to_i, y.to_i, w.to_i, h.to_i, 0)
  end

  def release_alt
    inputs = [1,18,2, 1,164,2, 1,165,2].pack('LSx2Lx16'*3)
    SendInput.call(3, inputs, 28)
  end

  public
  def load_fullscreen_settings
    buffer = [].pack('x256')
    section = 'Fullscreen++'
    filename = './Game.ini'
    get_option = Proc.new do |key, default|
      l = GetPrivateProfileString.call(section, key, default.to_s, buffer, buffer.size, filename)
      buffer[0, l]
    end
    @fullscreen       = get_option.call('Fullscreen', '0') == '1'
    @fullscreen_ratio = get_option.call('FullscreenRatio', '0').to_i
    @windowed_ratio   = get_option.call('WindowedRatio', '1').to_i

    toggle_vx_fullscreen if Disable_VX_Fullscreen && vx_fullscreen?
    fullscreen? ? fullscreen_mode : windowed_mode
  end

  def save_fullscreen_settings
    section = 'Fullscreen++'
    filename = './Game.ini'
    set = Proc.new { |k, v| WritePrivateProfileString.call(section, k, v.to_s, filename) }
    set.call('Fullscreen',      @fullscreen ? 1 : 0)
    set.call('FullscreenRatio', @fullscreen_ratio)
    set.call('WindowedRatio',   @windowed_ratio)
  end

  def fullscreen?; @fullscreen || vx_fullscreen?; end
  def vx_fullscreen?
    @fullscreen_rect && @fullscreen_rect.width == 640 && @fullscreen_rect.height == 480
  end

  def toggle_fullscreen
    fullscreen? ? windowed_mode : fullscreen_mode
  end

  def toggle_vx_fullscreen
    windowed_mode if @fullscreen && !vx_fullscreen?
    inputs = [1,18,0, 1,13,0, 1,13,2, 1,18,2].pack('LSx2Lx16'*4)
    SendInput.call(4, inputs, 28)
    zeus_fullscreen_update
    self.ratio += 0
  end

  def fullscreen_mode
    return if vx_fullscreen?
    initialize_fullscreen_rects
    show_back
    hide_borders
    @fullscreen = true
    self.ratio += 0
  end

  def windowed_mode
    toggle_vx_fullscreen if vx_fullscreen?
    initialize_fullscreen_rects
    hide_back
    show_borders
    @fullscreen = false
    self.ratio += 0
  end

  def toggle_ratio
    return if vx_fullscreen?
    self.ratio += 1
  end

  def ratio
    return 1 if vx_fullscreen?
    @fullscreen ? @fullscreen_ratio : @windowed_ratio
  end

  def ratio=(r)
    return if vx_fullscreen?
    initialize_fullscreen_rects
    r = 0 if r < 0

    if @fullscreen
      @fullscreen_ratio = r
      w_max = @fullscreen_rect.width
      h_max = @fullscreen_rect.height
    else
      @windowed_ratio = r
      w_max = @workarea_rect.width  - @borders_size.width
      h_max = @workarea_rect.height - @borders_size.height
    end

    if r == 0
      w = w_max
      h = (w_max * height.to_f / width).to_i
      if h > h_max
        h = h_max
        w = (h_max * width.to_f / height).to_i
      end
    else
      w = width * r
      h = height * r
      return self.ratio = 0 if w > w_max || h > h_max
    end

    resize_window(w, h)
    save_fullscreen_settings
  end

  def update
    release_alt if Disable_VX_Fullscreen && Input.trigger?(Input::ALT)
    zeus_fullscreen_update
    toggle_fullscreen if Input.trigger?(Input::F5)
    toggle_ratio      if Input.trigger?(Input::F6)
  end

  def resize_screen(width, height)
    zeus_fullscreen_resize_screen(width, height)
    self.ratio += 0
  end
end

Graphics.load_fullscreen_settings
p "OK: Fullscreen++ Multi-Monitor v2.32 (검은 배경 멀티모니터 완전 수정)"