include/wx/msw/private.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        private.h
   3 // Purpose:     Private declarations: as this header is only included by
   4 //              wxWindows itself, it may contain identifiers which don't start
   5 //              with "wx".
   6 // Author:      Julian Smart
   7 // Modified by:
   8 // Created:     01/02/97
   9 // RCS-ID:      $Id$
  10 // Copyright:   (c) Julian Smart
  11 // Licence:     wxWindows licence
  12 /////////////////////////////////////////////////////////////////////////////
  13
  14 #ifndef _WX_PRIVATE_H_
  15 #define _WX_PRIVATE_H_
  16
  17 #ifndef STRICT
  18     #define STRICT 1
  19 #endif
  20
  21 #include <windows.h>
  22
  23
  24 #if defined (__WXWINCE__)
  25     #include <wingdi.h>     // RGB, COLORREF
  26     #include <winuser.h>    // Global Namespaces ::GetKeyState, ::GetWindowRect
  27 #endif
  28
  29
  30 #ifdef __WXMICROWIN__
  31     // Extra prototypes and symbols not defined by MicroWindows
  32     #include "wx/msw/microwin.h"
  33 #endif
  34
  35 // undefine conflicting symbols which were defined in windows.h
  36 #include "wx/msw/winundef.h"
  37
  38 // Include fixes for MSLU:
  39 #include "wx/msw/mslu.h"
  40
  41 #include "wx/log.h"
  42
  43 class WXDLLEXPORT wxFont;
  44 class WXDLLEXPORT wxWindow;
  45
  46 // ---------------------------------------------------------------------------
  47 // private constants
  48 // ---------------------------------------------------------------------------
  49
  50 // Conversion
  51 static const double METRIC_CONVERSION_CONSTANT = 0.0393700787;
  52
  53 // Scaling factors for various unit conversions
  54 static const double mm2inches = (METRIC_CONVERSION_CONSTANT);
  55 static const double inches2mm = (1/METRIC_CONVERSION_CONSTANT);
  56
  57 static const double mm2twips = (METRIC_CONVERSION_CONSTANT*1440);
  58 static const double twips2mm = (1/(METRIC_CONVERSION_CONSTANT*1440));
  59
  60 static const double mm2pt = (METRIC_CONVERSION_CONSTANT*72);
  61 static const double pt2mm = (1/(METRIC_CONVERSION_CONSTANT*72));
  62
  63 // ---------------------------------------------------------------------------
  64 // standard icons from the resources
  65 // ---------------------------------------------------------------------------
  66
  67 #if wxUSE_GUI
  68
  69 WXDLLEXPORT_DATA(extern HICON) wxSTD_FRAME_ICON;
  70 WXDLLEXPORT_DATA(extern HICON) wxSTD_MDIPARENTFRAME_ICON;
  71 WXDLLEXPORT_DATA(extern HICON) wxSTD_MDICHILDFRAME_ICON;
  72 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_FRAME_ICON;
  73 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDIPARENTFRAME_ICON;
  74 WXDLLEXPORT_DATA(extern HICON) wxDEFAULT_MDICHILDFRAME_ICON;
  75 WXDLLEXPORT_DATA(extern HFONT) wxSTATUS_LINE_FONT;
  76
  77 #endif // wxUSE_GUI
  78
  79 // ---------------------------------------------------------------------------
  80 // define things missing from some compilers' headers
  81 // ---------------------------------------------------------------------------
  82
  83 #if defined(__GNUWIN32__) && !wxUSE_NORLANDER_HEADERS
  84 #ifndef ZeroMemory
  85     inline void ZeroMemory(void *buf, size_t len) { memset(buf, 0, len); }
  86 #endif
  87 #endif // old mingw32
  88
  89 // this defines a CASTWNDPROC macro which casts a pointer to the type of a
  90 // window proc
  91 #if defined(__WXWINCE__)
  92     typedef FARPROC WndProcCast;
  93 #elif defined(STRICT) || defined(__GNUC__)
  94     typedef WNDPROC WndProcCast;
  95 #else
  96     typedef FARPROC WndProcCast;
  97 #endif
  98
  99
 100 #define CASTWNDPROC (WndProcCast)
 101
 102 // ---------------------------------------------------------------------------
 103 // some stuff for old Windows versions (FIXME: what does it do here??)
 104 // ---------------------------------------------------------------------------
 105
 106 #if !defined(APIENTRY)  // NT defines APIENTRY, 3.x not
 107     #define APIENTRY FAR PASCAL
 108 #endif
 109
 110 #ifdef __WIN32__
 111     #define _EXPORT
 112 #else
 113     #define _EXPORT _export
 114 #endif
 115
 116 #ifndef __WIN32__
 117     typedef signed short int SHORT;
 118 #endif
 119
 120 #if !defined(__WIN32__)  // 3.x uses FARPROC for dialogs
 121 #ifndef STRICT
 122     #define DLGPROC FARPROC
 123 #endif
 124 #endif
 125
 126 #if wxUSE_PENWIN
 127     WXDLLEXPORT void wxRegisterPenWin();
 128     WXDLLEXPORT void wxCleanUpPenWin();
 129     WXDLLEXPORT void wxEnablePenAppHooks (bool hook);
 130 #endif // wxUSE_PENWIN
 131
 132 #if wxUSE_ITSY_BITSY
 133     #define IBS_HORZCAPTION    0x4000L
 134     #define IBS_VERTCAPTION    0x8000L
 135
 136     UINT    WINAPI ibGetCaptionSize( HWND hWnd  ) ;
 137     UINT    WINAPI ibSetCaptionSize( HWND hWnd, UINT nSize ) ;
 138     LRESULT WINAPI ibDefWindowProc( HWND hWnd, UINT uiMsg, WPARAM wParam, LPARAM lParam ) ;
 139     VOID    WINAPI ibAdjustWindowRect( HWND hWnd, LPRECT lprc ) ;
 140 #endif // wxUSE_ITSY_BITSY
 141
 142 #if wxUSE_CTL3D
 143     #include "wx/msw/ctl3d/ctl3d.h"
 144 #endif // wxUSE_CTL3D
 145
 146 /*
 147  * Decide what window classes we're going to use
 148  * for this combination of CTl3D/FAFA settings
 149  */
 150
 151 #define STATIC_CLASS     wxT("STATIC")
 152 #define STATIC_FLAGS     (SS_LEFT|WS_CHILD|WS_VISIBLE)
 153 #define CHECK_CLASS      wxT("BUTTON")
 154 #define CHECK_FLAGS      (BS_AUTOCHECKBOX|WS_TABSTOP|WS_CHILD)
 155 #define CHECK_IS_FAFA   FALSE
 156 #define RADIO_CLASS      wxT("BUTTON")
 157 #define RADIO_FLAGS      (BS_AUTORADIOBUTTON|WS_CHILD|WS_VISIBLE)
 158 #define RADIO_SIZE       20
 159 #define RADIO_IS_FAFA   FALSE
 160 #define PURE_WINDOWS
 161 #define GROUP_CLASS      wxT("BUTTON")
 162 #define GROUP_FLAGS      (BS_GROUPBOX|WS_CHILD|WS_VISIBLE)
 163
 164 /*
 165 #define BITCHECK_FLAGS   (FB_BITMAP|FC_BUTTONDRAW|FC_DEFAULT|WS_VISIBLE)
 166 #define BITRADIO_FLAGS   (FC_BUTTONDRAW|FB_BITMAP|FC_RADIO|WS_CHILD|WS_VISIBLE)
 167 */
 168
 169 // ---------------------------------------------------------------------------
 170 // misc macros
 171 // ---------------------------------------------------------------------------
 172
 173 #define MEANING_CHARACTER '0'
 174 #define DEFAULT_ITEM_WIDTH  100
 175 #define DEFAULT_ITEM_HEIGHT 80
 176
 177 // Scale font to get edit control height
 178 //#define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (3*(cy)/2)
 179 #define EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)    (cy+8)
 180
 181 // Generic subclass proc, for panel item moving/sizing and intercept
 182 // EDIT control VK_RETURN messages
 183 extern LONG APIENTRY _EXPORT
 184   wxSubclassedGenericControlProc(WXHWND hWnd, WXUINT message, WXWPARAM wParam, WXLPARAM lParam);
 185
 186 // ---------------------------------------------------------------------------
 187 // constants which might miss from some compilers' headers
 188 // ---------------------------------------------------------------------------
 189
 190 #if !defined(__WIN32__) && !defined(WS_EX_CLIENTEDGE)
 191     #define WS_EX_CLIENTEDGE 0
 192 #endif
 193
 194 #if defined(__WIN32__) && !defined(WS_EX_CLIENTEDGE)
 195     #define WS_EX_CLIENTEDGE 0x00000200L
 196 #endif
 197
 198 #ifndef ENDSESSION_LOGOFF
 199     #define ENDSESSION_LOGOFF    0x80000000
 200 #endif
 201
 202 // ---------------------------------------------------------------------------
 203 // useful macros and functions
 204 // ---------------------------------------------------------------------------
 205
 206 // a wrapper macro for ZeroMemory()
 207 #if defined(__WIN32__) && !defined(__WXMICROWIN__)
 208 #define wxZeroMemory(obj)   ::ZeroMemory(&obj, sizeof(obj))
 209 #else
 210 #define wxZeroMemory(obj)   memset((void*) & obj, 0, sizeof(obj))
 211 #endif
 212
 213 #if wxUSE_GUI
 214
 215 #include <wx/gdicmn.h>
 216
 217 // make conversion from wxColour and COLORREF a bit less painful
 218 inline COLORREF wxColourToRGB(const wxColour& c)
 219 {
 220     return RGB(c.Red(), c.Green(), c.Blue());
 221 }
 222
 223 inline COLORREF wxColourToPalRGB(const wxColour& c)
 224 {
 225     return PALETTERGB(c.Red(), c.Green(), c.Blue());
 226 }
 227
 228 inline wxColour wxRGBToColour(COLORREF rgb)
 229 {
 230     return wxColour(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 231 }
 232
 233 inline void wxRGBToColour(wxColour& c, COLORREF rgb)
 234 {
 235     c.Set(GetRValue(rgb), GetGValue(rgb), GetBValue(rgb));
 236 }
 237
 238 // get the standard colour map for some standard colours - see comment in this
 239 // function to understand why is it needed and when should it be used
 240 //
 241 // it returns a wxCOLORMAP (can't use COLORMAP itself here as comctl32.dll
 242 // might be not included/available) array of size wxSTD_COLOUR_MAX
 243 //
 244 // NB: if you change these colours, update wxBITMAP_STD_COLOURS in the
 245 //     resources as well: it must have the same number of pixels!
 246 enum wxSTD_COLOUR
 247 {
 248     wxSTD_COL_BTNTEXT,
 249     wxSTD_COL_BTNSHADOW,
 250     wxSTD_COL_BTNFACE,
 251     wxSTD_COL_BTNHIGHLIGHT,
 252     wxSTD_COL_MAX,
 253 };
 254
 255 struct WXDLLEXPORT wxCOLORMAP
 256 {
 257     COLORREF from, to;
 258 };
 259
 260 // this function is implemented in src/msw/window.cpp
 261 extern wxCOLORMAP *wxGetStdColourMap();
 262
 263 // copy Windows RECT to our wxRect
 264 inline void wxCopyRECTToRect(const RECT& r, wxRect& rect)
 265 {
 266     rect.y = r.top;
 267     rect.x = r.left;
 268     rect.width = r.right - r.left;
 269     rect.height = r.bottom - r.top;
 270 }
 271
 272 // translations between HIMETRIC units (which OLE likes) and pixels (which are
 273 // liked by all the others) - implemented in msw/utilsexc.cpp
 274 extern void HIMETRICToPixel(LONG *x, LONG *y);
 275 extern void PixelToHIMETRIC(LONG *x, LONG *y);
 276
 277 // Windows convention of the mask is opposed to the wxWindows one, so we need
 278 // to invert the mask each time we pass one/get one to/from Windows
 279 extern HBITMAP wxInvertMask(HBITMAP hbmpMask, int w = 0, int h = 0);
 280
 281 // get (x, y) from DWORD - notice that HI/LOWORD can *not* be used because they
 282 // will fail on system with multiple monitors where the coords may be negative
 283 //
 284 // these macros are standard now (Win98) but some older headers don't have them
 285 #ifndef GET_X_LPARAM
 286     #define GET_X_LPARAM(lp) ((int)(short)LOWORD(lp))
 287     #define GET_Y_LPARAM(lp) ((int)(short)HIWORD(lp))
 288 #endif // GET_X_LPARAM
 289
 290 // get the current state of SHIFT/CTRL keys
 291 inline bool wxIsShiftDown()
 292 {
 293     return (::GetKeyState(VK_SHIFT) & 0x100) != 0;
 294 }
 295
 296 inline bool wxIsCtrlDown()
 297 {
 298     return (::GetKeyState(VK_CONTROL) & 0x100) != 0;
 299 }
 300
 301 // wrapper around GetWindowRect() and GetClientRect() APIs doing error checking
 302 // for Win32
 303 inline RECT wxGetWindowRect(HWND hwnd)
 304 {
 305     RECT rect;
 306 #ifdef __WIN16__
 307     ::GetWindowRect(hwnd, &rect);
 308 #else // Win32
 309     if ( !::GetWindowRect(hwnd, &rect) )
 310     {
 311         wxLogLastError(_T("GetWindowRect"));
 312     }
 313 #endif // Win16/32
 314
 315     return rect;
 316 }
 317
 318 inline RECT wxGetClientRect(HWND hwnd)
 319 {
 320     RECT rect;
 321 #ifdef __WIN16__
 322     ::GetClientRect(hwnd, &rect);
 323 #else // Win32
 324     if ( !::GetClientRect(hwnd, &rect) )
 325     {
 326         wxLogLastError(_T("GetClientRect"));
 327     }
 328 #endif // Win16/32
 329
 330     return rect;
 331 }
 332
 333 // ---------------------------------------------------------------------------
 334 // small helper classes
 335 // ---------------------------------------------------------------------------
 336
 337 // create an instance of this class and use it as the HDC for screen, will
 338 // automatically release the DC going out of scope
 339 class ScreenHDC
 340 {
 341 public:
 342     ScreenHDC() { m_hdc = ::GetDC(NULL);    }
 343    ~ScreenHDC() { ::ReleaseDC(NULL, m_hdc); }
 344
 345     operator HDC() const { return m_hdc; }
 346
 347 private:
 348     HDC m_hdc;
 349
 350     DECLARE_NO_COPY_CLASS(ScreenHDC)
 351 };
 352
 353 // the same as ScreenHDC but for memory DCs: creates the HDC in ctor and
 354 // destroys it in dtor
 355 class MemoryHDC
 356 {
 357 public:
 358     MemoryHDC() { m_hdc = ::CreateCompatibleDC(NULL); }
 359    ~MemoryHDC() { ::DeleteDC(m_hdc);                  }
 360
 361     operator HDC() const { return m_hdc; }
 362
 363 private:
 364     HDC m_hdc;
 365
 366     DECLARE_NO_COPY_CLASS(MemoryHDC)
 367 };
 368
 369 // a class which selects a GDI object into a DC in its ctor and deselects in
 370 // dtor
 371 class SelectInHDC
 372 {
 373 public:
 374     SelectInHDC(HDC hdc, HGDIOBJ hgdiobj) : m_hdc(hdc)
 375         { m_hgdiobj = ::SelectObject(hdc, hgdiobj); }
 376
 377    ~SelectInHDC() { ::SelectObject(m_hdc, m_hgdiobj); }
 378
 379    // return true if the object was successfully selected
 380    operator bool() const { return m_hgdiobj != 0; }
 381
 382 private:
 383    HDC m_hdc;
 384    HGDIOBJ m_hgdiobj;
 385
 386     DECLARE_NO_COPY_CLASS(SelectInHDC)
 387 };
 388
 389 // ---------------------------------------------------------------------------
 390 // macros to make casting between WXFOO and FOO a bit easier: the GetFoo()
 391 // returns Foo cast to the Windows type for oruselves, while GetFooOf() takes
 392 // an argument which should be a pointer or reference to the object of the
 393 // corresponding class (this depends on the macro)
 394 // ---------------------------------------------------------------------------
 395
 396 #define GetHwnd()               ((HWND)GetHWND())
 397 #define GetHwndOf(win)          ((HWND)((win)->GetHWND()))
 398 // old name
 399 #define GetWinHwnd              GetHwndOf
 400
 401 #define GetHdc()                ((HDC)GetHDC())
 402 #define GetHdcOf(dc)            ((HDC)(dc).GetHDC())
 403
 404 #define GetHbitmap()            ((HBITMAP)GetHBITMAP())
 405 #define GetHbitmapOf(bmp)       ((HBITMAP)(bmp).GetHBITMAP())
 406
 407 #define GetHicon()              ((HICON)GetHICON())
 408 #define GetHiconOf(icon)        ((HICON)(icon).GetHICON())
 409
 410 #define GetHaccel()             ((HACCEL)GetHACCEL())
 411 #define GetHaccelOf(table)      ((HACCEL)((table).GetHACCEL()))
 412
 413 #define GetHmenu()              ((HMENU)GetHMenu())
 414 #define GetHmenuOf(menu)        ((HMENU)menu->GetHMenu())
 415
 416 #define GetHcursor()            ((HCURSOR)GetHCURSOR())
 417 #define GetHcursorOf(cursor)    ((HCURSOR)(cursor).GetHCURSOR())
 418
 419 #define GetHfont()              ((HFONT)GetHFONT())
 420 #define GetHfontOf(font)        ((HFONT)(font).GetHFONT())
 421
 422 #define GetHpalette()           ((HPALETTE)GetHPALETTE())
 423 #define GetHpaletteOf(pal)      ((HPALETTE)(pal).GetHPALETTE())
 424
 425 #define GetHrgn()               ((HRGN)GetHRGN())
 426 #define GetHrgnOf(rgn)          ((HRGN)(rgn).GetHRGN())
 427
 428 #endif // wxUSE_GUI
 429
 430 // ---------------------------------------------------------------------------
 431 // global data
 432 // ---------------------------------------------------------------------------
 433
 434 WXDLLEXPORT_DATA(extern wxChar*) wxBuffer;
 435
 436 WXDLLEXPORT_DATA(extern HINSTANCE) wxhInstance;
 437
 438 // ---------------------------------------------------------------------------
 439 // global functions
 440 // ---------------------------------------------------------------------------
 441
 442 extern "C"
 443 {
 444     WXDLLEXPORT HINSTANCE wxGetInstance();
 445 }
 446
 447 WXDLLEXPORT void wxSetInstance(HINSTANCE hInst);
 448
 449 #if wxUSE_GUI
 450
 451 // cursor stuff
 452 extern HCURSOR wxGetCurrentBusyCursor();    // from msw/utils.cpp
 453 extern const wxCursor *wxGetGlobalCursor(); // from msw/cursor.cpp
 454
 455 WXDLLEXPORT void wxGetCharSize(WXHWND wnd, int *x, int *y, const wxFont *the_font);
 456 WXDLLEXPORT void wxFillLogFont(LOGFONT *logFont, const wxFont *font);
 457 WXDLLEXPORT wxFont wxCreateFontFromLogFont(const LOGFONT *logFont);
 458 WXDLLEXPORT wxFontEncoding wxGetFontEncFromCharSet(int charset);
 459
 460 WXDLLEXPORT void wxSliderEvent(WXHWND control, WXWORD wParam, WXWORD pos);
 461 WXDLLEXPORT void wxScrollBarEvent(WXHWND hbar, WXWORD wParam, WXWORD pos);
 462
 463 // Find maximum size of window/rectangle
 464 WXDLLEXPORT extern void wxFindMaxSize(WXHWND hwnd, RECT *rect);
 465
 466 // Safely get the window text (i.e. without using fixed size buffer)
 467 WXDLLEXPORT extern wxString wxGetWindowText(WXHWND hWnd);
 468
 469 // get the window class name
 470 WXDLLEXPORT extern wxString wxGetWindowClass(WXHWND hWnd);
 471
 472 // get the window id (should be unsigned, hence this is not wxWindowID which
 473 // is, for mainly historical reasons, signed)
 474 WXDLLEXPORT extern WXWORD wxGetWindowId(WXHWND hWnd);
 475
 476 // check if hWnd's WNDPROC is wndProc. Return true if yes, false if they are
 477 // different
 478 WXDLLEXPORT extern bool wxCheckWindowWndProc(WXHWND hWnd, WXFARPROC wndProc);
 479
 480 // Does this window style specify any border?
 481 inline bool wxStyleHasBorder(long style)
 482 {
 483     return (style & (wxSIMPLE_BORDER | wxRAISED_BORDER |
 484                      wxSUNKEN_BORDER | wxDOUBLE_BORDER)) != 0;
 485 }
 486
 487 // ----------------------------------------------------------------------------
 488 // functions mapping HWND to wxWindow
 489 // ----------------------------------------------------------------------------
 490
 491 // this function simply checks whether the given hWnd corresponds to a wxWindow
 492 // and returns either that window if it does or NULL otherwise
 493 WXDLLEXPORT extern wxWindow* wxFindWinFromHandle(WXHWND hWnd);
 494
 495 // find the window for HWND which is part of some wxWindow, i.e. unlike
 496 // wxFindWinFromHandle() above it will also work for "sub controls" of a
 497 // wxWindow.
 498 //
 499 // returns the wxWindow corresponding to the given HWND or NULL.
 500 WXDLLEXPORT extern wxWindow *wxGetWindowFromHWND(WXHWND hwnd);
 501
 502
 503 // Get the size of an icon
 504 WXDLLEXPORT extern wxSize wxGetHiconSize(HICON hicon);
 505
 506 #endif // wxUSE_GUI
 507
 508 #endif
 509     // _WX_PRIVATE_H_