focus.cpp

   1 //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r
   2 // focus.cpp\r
   3 \r
   4 \r
   5 #include "focus.h"\r
   6 #include "windowstool.h"\r
   7 \r
   8 \r
   9 ///\r
  10 static LRESULT CALLBACK WndProc(\r
  11         HWND i_hwnd, UINT i_message, WPARAM i_wParam, LPARAM i_lParam)\r
  12 {\r
  13         switch (i_message) {\r
  14         case WM_KEYDOWN:\r
  15         case WM_SYSKEYDOWN:\r
  16         case WM_KEYUP:\r
  17         case WM_SYSKEYUP:\r
  18                 SendMessage(GetParent(i_hwnd), WM_APP_notifyVKey, i_wParam, i_lParam);\r
  19                 return 0;\r
  20         case WM_CHAR:\r
  21         case WM_DEADCHAR:\r
  22                 return 0;\r
  23         case WM_LBUTTONDOWN: {\r
  24                 SetFocus(i_hwnd);\r
  25                 return 0;\r
  26         }\r
  27         case WM_SETFOCUS: {\r
  28                 RECT rc;\r
  29                 GetClientRect(i_hwnd, &rc);\r
  30                 CreateCaret(i_hwnd, reinterpret_cast<HBITMAP>(NULL), 2,\r
  31                                         rcHeight(&rc) / 2);\r
  32                 ShowCaret(i_hwnd);\r
  33                 SetCaretPos(rcWidth(&rc) / 2, rcHeight(&rc) / 4);\r
  34                 SendMessage(GetParent(i_hwnd), WM_APP_notifyFocus,\r
  35                                         TRUE, (LPARAM)i_hwnd);\r
  36                 return 0;\r
  37         }\r
  38         case WM_KILLFOCUS: {\r
  39                 HideCaret(i_hwnd);\r
  40                 DestroyCaret();\r
  41                 SendMessage(GetParent(i_hwnd), WM_APP_notifyFocus,\r
  42                                         FALSE, (LPARAM)i_hwnd);\r
  43                 return 0;\r
  44         }\r
  45         case WM_GETDLGCODE:\r
  46                 return DLGC_WANTALLKEYS;\r
  47         }\r
  48         return DefWindowProc(i_hwnd, i_message, i_wParam, i_lParam);\r
  49 }\r
  50 \r
  51 \r
  52 ATOM Register_focus()\r
  53 {\r
  54         WNDCLASS wc;\r
  55         wc.style         = CS_HREDRAW | CS_VREDRAW;\r
  56         wc.lpfnWndProc   = WndProc;\r
  57         wc.cbClsExtra    = 0;\r
  58         wc.cbWndExtra    = 0;\r
  59         wc.hInstance     = g_hInst;\r
  60         wc.hIcon         = NULL;\r
  61         wc.hCursor       = LoadCursor(NULL, IDC_IBEAM);\r
  62         wc.hbrBackground = reinterpret_cast<HBRUSH>(COLOR_WINDOW + 1);\r
  63         wc.lpszMenuName  = NULL;\r
  64         wc.lpszClassName = _T("mayuFocus");\r
  65         return RegisterClass(&wc);\r
  66 }\r