reactos/subsys/system/explorer/utility/utility.h

   1 /*
   2  * Copyright 2003 Martin Fuchs
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20  //
  21  // Explorer clone
  22  //
  23  // utility.h
  24  //
  25  // Martin Fuchs, 23.07.2003
  26  //
  27
  28
  29  // standard windows headers
  30 #define WIN32_LEAN_AND_MEAN
  31 #define WIN32_EXTRA_LEAN
  32 #include <windows.h>
  33
  34  // Unicode support
  35 #ifdef UNICODE
  36 #define _UNICODE
  37 #endif
  38 #include <tchar.h>
  39
  40 #include <windowsx.h>   // for SelectBrush(), ListBox_SetSel(), SubclassWindow(), ...
  41 #include <commctrl.h>
  42
  43 #include <malloc.h>             // for alloca()
  44 #include <assert.h>
  45 #include <time.h>
  46
  47
  48 #ifndef BTNS_BUTTON
  49 #define BTNS_BUTTON TBSTYLE_BUTTON //TODO: should be in mingw headers
  50 #define BTNS_SEP TBSTYLE_SEP
  51 #endif
  52 #ifndef TB_HITTEST      //missing in mingw headers
  53 #define TB_HITTEST (WM_USER+69)
  54 #endif
  55
  56
  57 #ifdef __cplusplus
  58
  59 #ifdef _MSC_VER
  60 #pragma warning(disable: 4786)  // disable warnings about too long debug information symbols
  61 #endif
  62
  63  // STL headers for strings and streams
  64 #include <string>
  65 #include <iostream>
  66 using namespace std;
  67
  68 #if _MSC_VER>=1300      // VS.Net
  69 #define _NO_COMUTIL     //@@
  70 #endif
  71
  72 #if defined(_MSC_VER) && !defined(_NO_COMUTIL)
  73
  74  // COM utility headers
  75 #include <comdef.h>
  76 using namespace _com_util;
  77
  78 #endif  // _MSC_VER && !_NO_COMUTIL
  79
  80
  81 #define for if (0) {} else for
  82
  83
  84 #define BUFFER_LEN                              1024
  85
  86
  87 struct CommonControlInit
  88 {
  89         CommonControlInit(DWORD flags=ICC_LISTVIEW_CLASSES|ICC_TREEVIEW_CLASSES|ICC_BAR_CLASSES|ICC_PROGRESS_CLASS|ICC_COOL_CLASSES)
  90         {
  91                 INITCOMMONCONTROLSEX icc = {sizeof(INITCOMMONCONTROLSEX), flags};
  92
  93                 InitCommonControlsEx(&icc);
  94         }
  95 };
  96
  97
  98  /// wait cursor
  99
 100 struct WaitCursor
 101 {
 102         WaitCursor()
 103         {
 104                 _old_cursor = SetCursor(LoadCursor(0, IDC_WAIT));
 105         }
 106
 107         ~WaitCursor()
 108         {
 109                 SetCursor(_old_cursor);
 110         }
 111
 112 protected:
 113         HCURSOR _old_cursor;
 114 };
 115
 116
 117  // window utilities
 118
 119 struct ClientRect : public RECT
 120 {
 121         ClientRect(HWND hwnd)
 122         {
 123                 GetClientRect(hwnd, this);
 124         }
 125
 126         operator LPRECT() {return this;}
 127 };
 128
 129 struct WindowRect : public RECT
 130 {
 131         WindowRect(HWND hwnd)
 132         {
 133                 GetWindowRect(hwnd, this);
 134         }
 135
 136         operator LPRECT() {return this;}
 137 };
 138
 139 struct Point : public POINT
 140 {
 141         Point(LONG x_, LONG y_)
 142         {
 143                 x = x_;
 144                 y = y_;
 145         }
 146
 147          // constructor for being used in processing WM_MOUSEMOVE, WM_LBUTTONDOWN, ... messages
 148         Point(LPARAM lparam)
 149         {
 150                 x = GET_X_LPARAM(lparam);
 151                 y = GET_Y_LPARAM(lparam);
 152         }
 153
 154         operator LPPOINT() {return this;}
 155 };
 156
 157
 158 struct FullScreenParameters
 159 {
 160         FullScreenParameters()
 161          :      _mode(FALSE)
 162         {
 163         }
 164
 165         BOOL    _mode;
 166         RECT    _orgPos;
 167         BOOL    _wasZoomed;
 168 };
 169
 170
 171  // drawing utilities
 172
 173 struct PaintCanvas : public PAINTSTRUCT
 174 {
 175         PaintCanvas(HWND hwnd)
 176          :      _hwnd(hwnd)
 177         {
 178                 BeginPaint(hwnd, this);
 179         }
 180
 181         ~PaintCanvas()
 182         {
 183                 EndPaint(_hwnd, this);
 184         }
 185
 186         operator HDC() const {return hdc;}
 187
 188 protected:
 189         HWND    _hwnd;
 190 };
 191
 192 struct Canvas
 193 {
 194         Canvas(HDC hdc) : _hdc(hdc) {}
 195
 196         operator HDC() {return _hdc;}
 197
 198 protected:
 199         HDC _hdc;
 200 };
 201
 202 struct WindowCanvas : public Canvas
 203 {
 204         WindowCanvas(HWND hwnd)
 205          :      Canvas(GetDC(hwnd)), _hwnd(hwnd) {}
 206
 207         ~WindowCanvas() {ReleaseDC(_hwnd, _hdc);}
 208
 209 protected:
 210         HWND    _hwnd;
 211 };
 212
 213
 214  // double buffering classes
 215
 216 struct MemCanvas : public Canvas
 217 {
 218         MemCanvas(HDC hdc=0)
 219          :      Canvas(CreateCompatibleDC(hdc)) {assert(_hdc);}
 220
 221         ~MemCanvas() {DeleteDC(_hdc);}
 222 };
 223
 224 struct SelectedBitmap
 225 {
 226         SelectedBitmap(HDC hdc, HBITMAP hbmp)
 227          :      _hdc(hdc), _old_hbmp(SelectBitmap(hdc, hbmp)) {}
 228
 229         ~SelectedBitmap() {DeleteObject(SelectBitmap(_hdc, _old_hbmp));}
 230
 231 protected:
 232         HDC             _hdc;
 233         HBITMAP _old_hbmp;
 234 };
 235
 236 struct BufferCanvas : public MemCanvas
 237 {
 238         BufferCanvas(HDC hdc, int x, int y, int w, int h)
 239          :      MemCanvas(hdc), _hdctarg(hdc),
 240                 _x(x), _y(y), _w(w), _h(h),
 241                 _bmp(_hdc, CreateCompatibleBitmap(hdc, w, h)) {}
 242
 243         BufferCanvas(HDC hdc, const RECT& rect)
 244          :      MemCanvas(hdc), _hdctarg(hdc),
 245                 _x(rect.left), _y(rect.top), _w(rect.right-rect.left), _h(rect.bottom-rect.top),
 246                 _bmp(_hdc, CreateCompatibleBitmap(hdc, _w, _h)) {}
 247
 248 protected:
 249         HDC     _hdctarg;
 250         int     _x, _y, _w, _h;
 251         SelectedBitmap _bmp;
 252 };
 253
 254 struct BufferedCanvas : public BufferCanvas
 255 {
 256         BufferedCanvas(HDC hdc, int x, int y, int w, int h, DWORD mode=SRCCOPY)
 257          :      BufferCanvas(hdc, x, y, w, h), _mode(mode) {}
 258
 259         BufferedCanvas(HDC hdc, const RECT& rect, DWORD mode=SRCCOPY)
 260          :      BufferCanvas(hdc, rect), _mode(mode) {}
 261
 262         ~BufferedCanvas() {BitBlt(_hdctarg, _x, _y, _w, _h, _hdc, 0, 0, _mode);}
 263
 264         DWORD   _mode;
 265 };
 266
 267 struct BufferedPaintCanvas : public PaintCanvas, public BufferedCanvas
 268 {
 269         BufferedPaintCanvas(HWND hwnd)
 270          :      PaintCanvas(hwnd),
 271                 BufferedCanvas(PAINTSTRUCT::hdc, 0, 0, rcPaint.right, rcPaint.bottom)
 272         {
 273         }
 274
 275         operator HDC() {return BufferedCanvas::_hdc;}
 276 };
 277
 278
 279 struct TextColor
 280 {
 281         TextColor(HDC hdc, COLORREF color)
 282          : _hdc(hdc), _old_color(SetTextColor(hdc, color)) {}
 283
 284         ~TextColor() {SetTextColor(_hdc, _old_color);}
 285
 286 protected:
 287         HDC              _hdc;
 288         COLORREF _old_color;
 289 };
 290
 291 struct BkMode
 292 {
 293         BkMode(HDC hdc, int bkmode)
 294          : _hdc(hdc), _old_bkmode(SetBkMode(hdc, bkmode)) {}
 295
 296         ~BkMode() {SetBkMode(_hdc, _old_bkmode);}
 297
 298 protected:
 299         HDC              _hdc;
 300         COLORREF _old_bkmode;
 301 };
 302
 303 struct FontSelection
 304 {
 305         FontSelection(HDC hdc, HFONT hFont)
 306          : _hdc(hdc), _old_hFont(SelectFont(hdc, hFont)) {}
 307
 308         ~FontSelection() {SelectFont(_hdc, _old_hFont);}
 309
 310 protected:
 311         HDC             _hdc;
 312         HFONT   _old_hFont;
 313 };
 314
 315
 316 struct String
 317 #ifdef UNICODE
 318  : public wstring
 319 #else
 320  : public string
 321 #endif
 322 {
 323 #ifdef UNICODE
 324         typedef wstring super;
 325 #else
 326         typedef string super;
 327 #endif
 328
 329         String() {}
 330         String(LPCTSTR s) : super(s) {}
 331         String(const String& other) : super(other) {}
 332
 333         String& operator=(LPCTSTR s) {assign(s); return *this;}
 334         operator LPCTSTR() const {return c_str();}
 335 };
 336
 337
 338 #endif // __cplusplus
 339
 340
 341 #ifdef __cplusplus
 342 extern "C" {
 343 #endif
 344
 345
 346 #ifdef _MSC_VER
 347 #define LONGLONGARG TEXT("I64")
 348 #else
 349 #define LONGLONGARG TEXT("L")
 350 #endif
 351
 352
 353 #ifndef _tcsrchr
 354 #ifdef UNICODE
 355 #define _tcsrchr wcsrchr
 356 #else
 357 #define _tcsrchr strrchr
 358 #endif
 359 #endif
 360
 361 #ifndef _stprintf
 362 #ifdef UNICODE
 363 #define _stprintf wcsprintf
 364 #else
 365 #define _stprintf sprintf
 366 #endif
 367 #endif
 368
 369
 370 #define SetDlgCtrlID(hwnd, id) SetWindowLong(hwnd, GWL_ID, id)
 371
 372
 373  // display
 374 extern void display_error(HWND hwnd, DWORD error);
 375
 376  // convert time_t to WIN32 FILETIME
 377 extern BOOL time_to_filetime(const time_t* t, FILETIME* ftime);
 378
 379  // search for windows of a specific classname
 380 extern int find_window_class(LPCTSTR classname);
 381
 382  // launch a program or document file
 383 extern BOOL launch_file(HWND hwnd, LPCTSTR cmd, UINT nCmdShow);
 384 #ifdef UNICODE
 385 extern BOOL launch_fileA(HWND hwnd, LPSTR cmd, UINT nCmdShow);
 386 #else
 387 #define launch_fileA launch_file
 388 #endif
 389
 390  // create a bitmap from an icon
 391 extern HBITMAP create_bitmap_from_icon(HICON hIcon, HBRUSH hbrush_bkgnd, HDC hdc_wnd);
 392
 393
 394 #ifdef __cplusplus
 395 } // extern "C"
 396 #endif
 397