programs/clock/main.c

   1 /*
   2  * Clock
   3  *
   4  * Copyright 1998 Marcel Baur <mbaur@g26.ethz.ch>
   5  *
   6  * Clock is partially based on
   7  * - Program Manager by Ulrich Schmied
   8  * - rolex.c by Jim Peterson
   9  *
  10  *
  11  * This library is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * This library is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with this library; if not, write to the Free Software
  23  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  24  */
  25
  26 #include <stdio.h>
  27
  28 #include "windows.h"
  29 #include "commdlg.h"
  30
  31 #include "main.h"
  32 #include "winclock.h"
  33
  34 #define INITIAL_WINDOW_SIZE 200
  35 #define TIMER_ID 1
  36
  37 CLOCK_GLOBALS Globals;
  38
  39 static VOID WineLicense(HWND Wnd)
  40 {
  41   char cap[20], text[1024];
  42   LoadString(Globals.hInstance, IDS_LICENSE, text, sizeof text);
  43   LoadString(Globals.hInstance, IDS_LICENSE_CAPTION, cap, sizeof cap);
  44   MessageBox(Wnd, text, cap, MB_ICONINFORMATION | MB_OK);
  45 }
  46
  47 static VOID WineWarranty(HWND Wnd)
  48 {
  49   char cap[20], text[1024];
  50   LoadString(Globals.hInstance, IDS_WARRANTY, text, sizeof text);
  51   LoadString(Globals.hInstance, IDS_WARRANTY_CAPTION, cap, sizeof cap);
  52   MessageBox(Wnd, text, cap, MB_ICONEXCLAMATION | MB_OK);
  53 }
  54
  55 static VOID CLOCK_UpdateMenuCheckmarks(VOID)
  56 {
  57     HMENU hPropertiesMenu;
  58     hPropertiesMenu = GetSubMenu(Globals.hMainMenu, 0);
  59     if (!hPropertiesMenu)
  60         return;
  61
  62     if(Globals.bAnalog) {
  63
  64         /* analog clock */
  65         CheckMenuRadioItem(hPropertiesMenu, IDM_ANALOG, IDM_DIGITAL, IDM_ANALOG, MF_CHECKED);
  66         EnableMenuItem(hPropertiesMenu, IDM_FONT, MF_GRAYED);
  67     }
  68     else
  69     {
  70         /* digital clock */
  71         CheckMenuRadioItem(hPropertiesMenu, IDM_ANALOG, IDM_DIGITAL, IDM_DIGITAL, MF_CHECKED);
  72         EnableMenuItem(hPropertiesMenu, IDM_FONT, 0);
  73     }
  74
  75     CheckMenuItem(hPropertiesMenu, IDM_NOTITLE, (Globals.bWithoutTitle ? MF_CHECKED : MF_UNCHECKED));
  76
  77     CheckMenuItem(hPropertiesMenu, IDM_ONTOP, (Globals.bAlwaysOnTop ? MF_CHECKED : MF_UNCHECKED));
  78     CheckMenuItem(hPropertiesMenu, IDM_SECONDS, (Globals.bSeconds ? MF_CHECKED : MF_UNCHECKED));
  79     CheckMenuItem(hPropertiesMenu, IDM_DATE, (Globals.bDate ? MF_CHECKED : MF_UNCHECKED));
  80 }
  81
  82 static VOID CLOCK_UpdateWindowCaption(VOID)
  83 {
  84     CHAR szCaption[MAX_STRING_LEN];
  85     int chars = 0;
  86
  87     /* Set frame caption */
  88     if (Globals.bDate) {
  89         chars = GetDateFormat(LOCALE_USER_DEFAULT, DATE_LONGDATE, NULL, NULL,
  90                               szCaption, sizeof(szCaption));
  91         if (chars) {
  92             --chars;
  93             szCaption[chars++] = ' ';
  94             szCaption[chars++] = '-';
  95             szCaption[chars++] = ' ';
  96             szCaption[chars] = '\0';
  97         }
  98     }
  99     LoadString(0, IDS_CLOCK, szCaption + chars, sizeof(szCaption) - chars);
 100     SetWindowText(Globals.hMainWnd, szCaption);
 101 }
 102
 103 /***********************************************************************
 104  *
 105  *           CLOCK_ResetTimer
 106  */
 107 static BOOL CLOCK_ResetTimer(void)
 108 {
 109     UINT period; /* milliseconds */
 110
 111     KillTimer(Globals.hMainWnd, TIMER_ID);
 112
 113     if (Globals.bSeconds)
 114         if (Globals.bAnalog)
 115             period = 50;
 116         else
 117             period = 500;
 118     else
 119         period = 1000;
 120
 121     if (!SetTimer (Globals.hMainWnd, TIMER_ID, period, NULL)) {
 122         CHAR szApp[MAX_STRING_LEN];
 123         LoadString(Globals.hInstance, IDS_CLOCK, szApp, sizeof(szApp));
 124         MessageBox(0, "No available timers", szApp, MB_ICONEXCLAMATION | MB_OK);
 125         return FALSE;
 126     }
 127     return TRUE;
 128 }
 129
 130 /***********************************************************************
 131  *
 132  *           CLOCK_ResetFont
 133  */
 134 static VOID CLOCK_ResetFont(VOID)
 135 {
 136     HFONT newfont;
 137     HDC dc = GetDC(Globals.hMainWnd);
 138     newfont = SizeFont(dc, Globals.MaxX, Globals.MaxY, Globals.bSeconds, &Globals.logfont);
 139     if (newfont) {
 140         DeleteObject(Globals.hFont);
 141         Globals.hFont = newfont;
 142     }
 143
 144     ReleaseDC(Globals.hMainWnd, dc);
 145 }
 146
 147
 148 /***********************************************************************
 149  *
 150  *           CLOCK_ChooseFont
 151  */
 152 static VOID CLOCK_ChooseFont(VOID)
 153 {
 154     LOGFONT lf;
 155     CHOOSEFONT cf;
 156     memset(&cf, 0, sizeof(cf));
 157     lf = Globals.logfont;
 158     cf.lStructSize = sizeof(cf);
 159     cf.hwndOwner = Globals.hMainWnd;
 160     cf.lpLogFont = &lf;
 161     cf.Flags = CF_SCREENFONTS | CF_INITTOLOGFONTSTRUCT;
 162     if (ChooseFont(&cf)) {
 163         Globals.logfont = lf;
 164         CLOCK_ResetFont();
 165     }
 166 }
 167
 168 /***********************************************************************
 169  *
 170  *           CLOCK_ToggleTitle
 171  */
 172 static VOID CLOCK_ToggleTitle(VOID)
 173 {
 174     /* Also shows/hides the menu */
 175     LONG style = GetWindowLong(Globals.hMainWnd, GWL_STYLE);
 176     if ((Globals.bWithoutTitle = !Globals.bWithoutTitle)) {
 177         style = (style & ~WS_OVERLAPPEDWINDOW) | WS_POPUP|WS_THICKFRAME;
 178         SetMenu(Globals.hMainWnd, 0);
 179     }
 180     else {
 181         style = (style & ~(WS_POPUP|WS_THICKFRAME)) | WS_OVERLAPPEDWINDOW;
 182         SetMenu(Globals.hMainWnd, Globals.hMainMenu);
 183     }
 184     SetWindowLong(Globals.hMainWnd, GWL_STYLE, style);
 185     SetWindowPos(Globals.hMainWnd, 0,0,0,0,0,
 186                  SWP_DRAWFRAME|SWP_NOMOVE|SWP_NOSIZE|SWP_NOZORDER);
 187
 188     CLOCK_UpdateMenuCheckmarks();
 189     CLOCK_UpdateWindowCaption();
 190 }
 191
 192 /***********************************************************************
 193  *
 194  *           CLOCK_ToggleOnTop
 195  */
 196 static VOID CLOCK_ToggleOnTop(VOID)
 197 {
 198     if ((Globals.bAlwaysOnTop = !Globals.bAlwaysOnTop)) {
 199         SetWindowPos(Globals.hMainWnd, HWND_TOPMOST, 0,0,0,0,
 200                      SWP_NOMOVE|SWP_NOSIZE);
 201     }
 202     else {
 203         SetWindowPos(Globals.hMainWnd, HWND_NOTOPMOST, 0,0,0,0,
 204                      SWP_NOMOVE|SWP_NOSIZE);
 205     }
 206     CLOCK_UpdateMenuCheckmarks();
 207 }
 208 /***********************************************************************
 209  *
 210  *           CLOCK_MenuCommand
 211  *
 212  *  All handling of main menu events
 213  */
 214
 215 static int CLOCK_MenuCommand (WPARAM wParam)
 216 {
 217     CHAR szApp[MAX_STRING_LEN];
 218     CHAR szAppRelease[MAX_STRING_LEN];
 219     switch (wParam) {
 220         /* switch to analog */
 221         case IDM_ANALOG: {
 222             Globals.bAnalog = TRUE;
 223             CLOCK_UpdateMenuCheckmarks();
 224             CLOCK_ResetTimer();
 225             InvalidateRect(Globals.hMainWnd, NULL, FALSE);
 226             break;
 227         }
 228             /* switch to digital */
 229         case IDM_DIGITAL: {
 230             Globals.bAnalog = FALSE;
 231             CLOCK_UpdateMenuCheckmarks();
 232             CLOCK_ResetTimer();
 233             CLOCK_ResetFont();
 234             InvalidateRect(Globals.hMainWnd, NULL, FALSE);
 235             break;
 236         }
 237             /* change font */
 238         case IDM_FONT: {
 239             CLOCK_ChooseFont();
 240             break;
 241         }
 242             /* hide title bar */
 243         case IDM_NOTITLE: {
 244             CLOCK_ToggleTitle();
 245             break;
 246         }
 247             /* always on top */
 248         case IDM_ONTOP: {
 249             CLOCK_ToggleOnTop();
 250             break;
 251         }
 252             /* show or hide seconds */
 253         case IDM_SECONDS: {
 254             Globals.bSeconds = !Globals.bSeconds;
 255             CLOCK_UpdateMenuCheckmarks();
 256             CLOCK_ResetTimer();
 257             if (!Globals.bAnalog)
 258                 CLOCK_ResetFont();
 259             InvalidateRect(Globals.hMainWnd, NULL, FALSE);
 260             break;
 261         }
 262             /* show or hide date */
 263         case IDM_DATE: {
 264             Globals.bDate = !Globals.bDate;
 265             CLOCK_UpdateMenuCheckmarks();
 266             CLOCK_UpdateWindowCaption();
 267             break;
 268         }
 269             /* show license */
 270         case IDM_LICENSE: {
 271             WineLicense(Globals.hMainWnd);
 272             break;
 273         }
 274             /* show warranties */
 275         case IDM_NOWARRANTY: {
 276             WineWarranty(Globals.hMainWnd);
 277             break;
 278         }
 279             /* show "about" box */
 280         case IDM_ABOUT: {
 281             LoadString(Globals.hInstance, IDS_CLOCK, szApp, sizeof(szApp));
 282             lstrcpy(szAppRelease,szApp);
 283             ShellAbout(Globals.hMainWnd, szApp, szAppRelease, 0);
 284             break;
 285         }
 286     }
 287     return 0;
 288 }
 289
 290 /***********************************************************************
 291  *
 292  *           CLOCK_Paint
 293  */
 294 static VOID CLOCK_Paint(HWND hWnd)
 295 {
 296     PAINTSTRUCT ps;
 297     HDC dcMem, dc;
 298     HBITMAP bmMem, bmOld;
 299
 300     dc = BeginPaint(hWnd, &ps);
 301
 302     /* Use an offscreen dc to avoid flicker */
 303     dcMem = CreateCompatibleDC(dc);
 304     bmMem = CreateCompatibleBitmap(dc, ps.rcPaint.right - ps.rcPaint.left,
 305                                     ps.rcPaint.bottom - ps.rcPaint.top);
 306
 307     bmOld = SelectObject(dcMem, bmMem);
 308
 309     SetViewportOrgEx(dcMem, -ps.rcPaint.left, -ps.rcPaint.top, NULL);
 310     /* Erase the background */
 311     FillRect(dcMem, &ps.rcPaint, GetStockObject(LTGRAY_BRUSH));
 312
 313     if(Globals.bAnalog)
 314         AnalogClock(dcMem, Globals.MaxX, Globals.MaxY, Globals.bSeconds);
 315     else
 316         DigitalClock(dcMem, Globals.MaxX, Globals.MaxY, Globals.bSeconds, Globals.hFont);
 317
 318     /* Blit the changes to the screen */
 319     BitBlt(dc,
 320            ps.rcPaint.left, ps.rcPaint.top,
 321            ps.rcPaint.right - ps.rcPaint.left, ps.rcPaint.bottom - ps.rcPaint.top,
 322            dcMem,
 323            ps.rcPaint.left, ps.rcPaint.top,
 324            SRCCOPY);
 325
 326     SelectObject(dcMem, bmOld);
 327     DeleteObject(bmMem);
 328     DeleteDC(dcMem);
 329
 330     EndPaint(hWnd, &ps);
 331 }
 332
 333 /***********************************************************************
 334  *
 335  *           CLOCK_WndProc
 336  */
 337
 338 static LRESULT WINAPI CLOCK_WndProc (HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 339 {
 340     switch (msg) {
 341         /* L button drag moves the window */
 342         case WM_NCHITTEST: {
 343             LRESULT ret = DefWindowProc (hWnd, msg, wParam, lParam);
 344             if (ret == HTCLIENT)
 345                 ret = HTCAPTION;
 346             return ret;
 347         }
 348
 349         case WM_NCLBUTTONDBLCLK:
 350         case WM_LBUTTONDBLCLK: {
 351             CLOCK_ToggleTitle();
 352             break;
 353         }
 354
 355         case WM_PAINT: {
 356             CLOCK_Paint(hWnd);
 357             break;
 358
 359         }
 360
 361         case WM_SIZE: {
 362             Globals.MaxX = LOWORD(lParam);
 363             Globals.MaxY = HIWORD(lParam);
 364             CLOCK_ResetFont();
 365             break;
 366         }
 367
 368         case WM_COMMAND: {
 369             CLOCK_MenuCommand(wParam);
 370             break;
 371         }
 372
 373         case WM_TIMER: {
 374             /* Could just invalidate what has changed,
 375              * but it doesn't really seem worth the effort
 376              */
 377             InvalidateRect(Globals.hMainWnd, NULL, FALSE);
 378             break;
 379         }
 380
 381         case WM_DESTROY: {
 382             PostQuitMessage (0);
 383             break;
 384         }
 385
 386         default:
 387             return DefWindowProc (hWnd, msg, wParam, lParam);
 388     }
 389     return 0;
 390 }
 391
 392
 393 /***********************************************************************
 394  *
 395  *           WinMain
 396  */
 397
 398 int PASCAL WinMain (HINSTANCE hInstance, HINSTANCE prev, LPSTR cmdline, int show)
 399 {
 400     MSG      msg;
 401     WNDCLASS class;
 402
 403     static const char szClassName[] = "CLClass";  /* To make sure className >= 0x10000 */
 404     static const char szWinName[]   = "Clock";
 405
 406     /* Setup Globals */
 407     memset(&Globals.hFont, 0, sizeof (Globals.hFont));
 408     Globals.bAnalog         = TRUE;
 409     Globals.bSeconds        = TRUE;
 410
 411     if (!prev){
 412         class.style         = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
 413         class.lpfnWndProc   = CLOCK_WndProc;
 414         class.cbClsExtra    = 0;
 415         class.cbWndExtra    = 0;
 416         class.hInstance     = hInstance;
 417         class.hIcon         = LoadIcon (0, IDI_APPLICATION);
 418         class.hCursor       = LoadCursor (0, IDC_ARROW);
 419         class.hbrBackground = 0;
 420         class.lpszMenuName  = 0;
 421         class.lpszClassName = szClassName;
 422     }
 423
 424     if (!RegisterClass (&class)) return FALSE;
 425
 426     Globals.MaxX = Globals.MaxY = INITIAL_WINDOW_SIZE;
 427     Globals.hMainWnd = CreateWindow (szClassName, szWinName, WS_OVERLAPPEDWINDOW,
 428                                      CW_USEDEFAULT, CW_USEDEFAULT,
 429                                      Globals.MaxX, Globals.MaxY, 0,
 430                                      0, hInstance, 0);
 431
 432     if (!CLOCK_ResetTimer())
 433         return FALSE;
 434
 435     Globals.hMainMenu = LoadMenu(0, MAKEINTRESOURCE(MAIN_MENU));
 436     SetMenu(Globals.hMainWnd, Globals.hMainMenu);
 437     CLOCK_UpdateMenuCheckmarks();
 438     CLOCK_UpdateWindowCaption();
 439
 440     ShowWindow (Globals.hMainWnd, show);
 441     UpdateWindow (Globals.hMainWnd);
 442
 443     while (GetMessage(&msg, 0, 0, 0)) {
 444         TranslateMessage(&msg);
 445         DispatchMessage(&msg);
 446     }
 447
 448     KillTimer(Globals.hMainWnd, TIMER_ID);
 449     DeleteObject(Globals.hFont);
 450
 451     return 0;
 452 }