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 //missing in old mingw headers
  50 #define BTNS_SEP TBSTYLE_SEP
  51 #define BTNS_NOPREFIX TBSTYLE_NOPREFIX
  52 #endif
  53 #ifndef TB_HITTEST      //missing in mingw headers
  54 #define TB_HITTEST (WM_USER+69)
  55 #endif
  56 #ifndef TB_GETBUTTONINFO        //missing in mingw headers
  57 #define TB_GETBUTTONINFO (WM_USER+65)
  58 #endif
  59
  60
  61 #ifdef __cplusplus
  62
  63 #ifdef _MSC_VER
  64 #pragma warning(disable: 4786)  // disable warnings about too long debug information symbols
  65 #endif
  66
  67  // STL headers for strings and streams
  68 #include <string>
  69 #include <iostream>
  70 using namespace std;
  71
  72 #if _MSC_VER>=1300      // VS.Net
  73 #define _NO_COMUTIL     //@@
  74 #endif
  75
  76 #if defined(_MSC_VER) && !defined(_NO_COMUTIL)
  77
  78  // COM utility headers
  79 #include <comdef.h>
  80 using namespace _com_util;
  81
  82 #endif  // _MSC_VER && !_NO_COMUTIL
  83
  84
  85 #define for if (0) {} else for
  86
  87
  88 #define BUFFER_LEN                              1024
  89
  90
  91 struct CommonControlInit
  92 {
  93         CommonControlInit(DWORD flags=ICC_LISTVIEW_CLASSES|ICC_TREEVIEW_CLASSES|ICC_BAR_CLASSES|ICC_PROGRESS_CLASS|ICC_COOL_CLASSES)
  94         {
  95                 INITCOMMONCONTROLSEX icc = {sizeof(INITCOMMONCONTROLSEX), flags};
  96
  97                 InitCommonControlsEx(&icc);
  98         }
  99 };
 100
 101
 102  /// wait cursor
 103
 104 struct WaitCursor
 105 {
 106         WaitCursor()
 107         {
 108                 _old_cursor = SetCursor(LoadCursor(0, IDC_WAIT));
 109         }
 110
 111         ~WaitCursor()
 112         {
 113                 SetCursor(_old_cursor);
 114         }
 115
 116 protected:
 117         HCURSOR _old_cursor;
 118 };
 119
 120
 121  // window utilities
 122
 123 struct ClientRect : public RECT
 124 {
 125         ClientRect(HWND hwnd)
 126         {
 127                 GetClientRect(hwnd, this);
 128         }
 129
 130         operator LPRECT() {return this;}
 131 };
 132
 133 struct WindowRect : public RECT
 134 {
 135         WindowRect(HWND hwnd)
 136         {
 137                 GetWindowRect(hwnd, this);
 138         }
 139
 140         operator LPRECT() {return this;}
 141 };
 142
 143 struct Point : public POINT
 144 {
 145         Point(LONG x_, LONG y_)
 146         {
 147                 x = x_;
 148                 y = y_;
 149         }
 150
 151          // constructor for being used in processing WM_MOUSEMOVE, WM_LBUTTONDOWN, ... messages
 152         Point(LPARAM lparam)
 153         {
 154                 x = GET_X_LPARAM(lparam);
 155                 y = GET_Y_LPARAM(lparam);
 156         }
 157
 158         operator LPPOINT() {return this;}
 159 };
 160
 161
 162 struct FullScreenParameters
 163 {
 164         FullScreenParameters()
 165          :      _mode(FALSE)
 166         {
 167         }
 168
 169         BOOL    _mode;
 170         RECT    _orgPos;
 171         BOOL    _wasZoomed;
 172 };
 173
 174
 175  // drawing utilities
 176
 177 struct PaintCanvas : public PAINTSTRUCT
 178 {
 179         PaintCanvas(HWND hwnd)
 180          :      _hwnd(hwnd)
 181         {
 182                 BeginPaint(hwnd, this);
 183         }
 184
 185         ~PaintCanvas()
 186         {
 187                 EndPaint(_hwnd, this);
 188         }
 189
 190         operator HDC() const {return hdc;}
 191
 192 protected:
 193         HWND    _hwnd;
 194 };
 195
 196 struct Canvas
 197 {
 198         Canvas(HDC hdc) : _hdc(hdc) {}
 199
 200         operator HDC() {return _hdc;}
 201
 202 protected:
 203         HDC _hdc;
 204 };
 205
 206 struct WindowCanvas : public Canvas
 207 {
 208         WindowCanvas(HWND hwnd)
 209          :      Canvas(GetDC(hwnd)), _hwnd(hwnd) {}
 210
 211         ~WindowCanvas() {ReleaseDC(_hwnd, _hdc);}
 212
 213 protected:
 214         HWND    _hwnd;
 215 };
 216
 217
 218  // double buffering classes
 219
 220 struct MemCanvas : public Canvas
 221 {
 222         MemCanvas(HDC hdc=0)
 223          :      Canvas(CreateCompatibleDC(hdc)) {assert(_hdc);}
 224
 225         ~MemCanvas() {DeleteDC(_hdc);}
 226 };
 227
 228 struct SelectedBitmap
 229 {
 230         SelectedBitmap(HDC hdc, HBITMAP hbmp)
 231          :      _hdc(hdc), _old_hbmp(SelectBitmap(hdc, hbmp)) {}
 232
 233         ~SelectedBitmap() {DeleteObject(SelectBitmap(_hdc, _old_hbmp));}
 234
 235 protected:
 236         HDC             _hdc;
 237         HBITMAP _old_hbmp;
 238 };
 239
 240 struct BufferCanvas : public MemCanvas
 241 {
 242         BufferCanvas(HDC hdc, int x, int y, int w, int h)
 243          :      MemCanvas(hdc), _hdctarg(hdc),
 244                 _x(x), _y(y), _w(w), _h(h),
 245                 _bmp(_hdc, CreateCompatibleBitmap(hdc, w, h)) {}
 246
 247         BufferCanvas(HDC hdc, const RECT& rect)
 248          :      MemCanvas(hdc), _hdctarg(hdc),
 249                 _x(rect.left), _y(rect.top), _w(rect.right-rect.left), _h(rect.bottom-rect.top),
 250                 _bmp(_hdc, CreateCompatibleBitmap(hdc, _w, _h)) {}
 251
 252 protected:
 253         HDC     _hdctarg;
 254         int     _x, _y, _w, _h;
 255         SelectedBitmap _bmp;
 256 };
 257
 258 struct BufferedCanvas : public BufferCanvas
 259 {
 260         BufferedCanvas(HDC hdc, int x, int y, int w, int h, DWORD mode=SRCCOPY)
 261          :      BufferCanvas(hdc, x, y, w, h), _mode(mode) {}
 262
 263         BufferedCanvas(HDC hdc, const RECT& rect, DWORD mode=SRCCOPY)
 264          :      BufferCanvas(hdc, rect), _mode(mode) {}
 265
 266         ~BufferedCanvas() {BitBlt(_hdctarg, _x, _y, _w, _h, _hdc, 0, 0, _mode);}
 267
 268         DWORD   _mode;
 269 };
 270
 271 struct BufferedPaintCanvas : public PaintCanvas, public BufferedCanvas
 272 {
 273         BufferedPaintCanvas(HWND hwnd)
 274          :      PaintCanvas(hwnd),
 275                 BufferedCanvas(PAINTSTRUCT::hdc, 0, 0, rcPaint.right, rcPaint.bottom)
 276         {
 277         }
 278
 279         operator HDC() {return BufferedCanvas::_hdc;}
 280 };
 281
 282
 283 struct TextColor
 284 {
 285         TextColor(HDC hdc, COLORREF color)
 286          : _hdc(hdc), _old_color(SetTextColor(hdc, color)) {}
 287
 288         ~TextColor() {SetTextColor(_hdc, _old_color);}
 289
 290 protected:
 291         HDC              _hdc;
 292         COLORREF _old_color;
 293 };
 294
 295 struct BkMode
 296 {
 297         BkMode(HDC hdc, int bkmode)
 298          : _hdc(hdc), _old_bkmode(SetBkMode(hdc, bkmode)) {}
 299
 300         ~BkMode() {SetBkMode(_hdc, _old_bkmode);}
 301
 302 protected:
 303         HDC              _hdc;
 304         COLORREF _old_bkmode;
 305 };
 306
 307 struct FontSelection
 308 {
 309         FontSelection(HDC hdc, HFONT hFont)
 310          : _hdc(hdc), _old_hFont(SelectFont(hdc, hFont)) {}
 311
 312         ~FontSelection() {SelectFont(_hdc, _old_hFont);}
 313
 314 protected:
 315         HDC             _hdc;
 316         HFONT   _old_hFont;
 317 };
 318
 319
 320 struct String
 321 #ifdef UNICODE
 322  : public wstring
 323 #else
 324  : public string
 325 #endif
 326 {
 327 #ifdef UNICODE
 328         typedef wstring super;
 329 #else
 330         typedef string super;
 331 #endif
 332
 333         String() {}
 334         String(LPCTSTR s) : super(s) {}
 335         String(const String& other) : super(other) {}
 336
 337         String& operator=(LPCTSTR s) {assign(s); return *this;}
 338         operator LPCTSTR() const {return c_str();}
 339 };
 340
 341
 342 #endif // __cplusplus
 343
 344
 345 #ifdef __cplusplus
 346 extern "C" {
 347 #endif
 348
 349
 350 #ifdef _MSC_VER
 351 #define LONGLONGARG TEXT("I64")
 352 #else
 353 #define LONGLONGARG TEXT("L")
 354 #endif
 355
 356
 357 #ifndef _tcsrchr
 358 #ifdef UNICODE
 359 #define _tcsrchr wcsrchr
 360 #else
 361 #define _tcsrchr strrchr
 362 #endif
 363 #endif
 364
 365 #ifndef _stprintf
 366 #ifdef UNICODE
 367 #define _stprintf wcsprintf
 368 #else
 369 #define _stprintf sprintf
 370 #endif
 371 #endif
 372
 373
 374 #define SetDlgCtrlID(hwnd, id) SetWindowLong(hwnd, GWL_ID, id)
 375
 376
 377  // display
 378 extern void display_error(HWND hwnd, DWORD error);
 379
 380  // convert time_t to WIN32 FILETIME
 381 extern BOOL time_to_filetime(const time_t* t, FILETIME* ftime);
 382
 383  // search for windows of a specific classname
 384 extern int find_window_class(LPCTSTR classname);
 385
 386  // launch a program or document file
 387 extern BOOL launch_file(HWND hwnd, LPCTSTR cmd, UINT nCmdShow);
 388 #ifdef UNICODE
 389 extern BOOL launch_fileA(HWND hwnd, LPSTR cmd, UINT nCmdShow);
 390 #else
 391 #define launch_fileA launch_file
 392 #endif
 393
 394  // create a bitmap from an icon
 395 extern HBITMAP create_bitmap_from_icon(HICON hIcon, HBRUSH hbrush_bkgnd, HDC hdc_wnd);
 396
 397
 398 #ifdef __cplusplus
 399 } // extern "C"
 400 #endif
 401