/Source/FR_PRNTR.PAS

http://github.com/FastReports/FreeReport · Pascal · 356 lines · 308 code · 37 blank · 11 comment · 20 complexity · 44097ca54beaac694dd3f9857f3f42cb MD5 · raw file 

    

  1. {*****************************************}

    2. 

  2. {                                         }

    3. 

  3. {             FastReport v2.3             }

    4. 

  4. {              Printer info               }

    5. 

  5. {                                         }

    6. 

  6. {  Copyright (c) 1998-99 by Tzyganenko A. }

    7. 

  7. {                                         }

    8. 

  8. {*****************************************}

    9. 

  9. 

    10. 

  10. unit FR_Prntr;

    11. 

  11. 

    12. 

  12. interface

    13. 

  13. 

    14. 

  14. {$I FR.inc}

    15. 

  15. 

    16. 

  16. uses

    17. 

  17.   Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,

    18. 

  18.   StdCtrls, Printers, WinSpool, FR_Class, FR_Const;

    19. 

  19. 

    20. 

  20. type

    21. 

  21.   TfrPrinter = class

    22. 

  22.   private

    23. 

  23.     FDevice: PChar;

    24. 

  24.     FDriver: PChar;

    25. 

  25.     FPort: PChar;

    26. 

  26.     FDeviceMode: THandle;

    27. 

  27.     FMode: PDeviceMode;

    28. 

  28.     FPrinter: TPrinter;

    29. 

  29.     FPaperNames: TStringList;

    30. 

  30.     FPrinters: TStringList;

    31. 

  31.     FPrinterIndex: Integer;

    32. 

  32.     FDefaultPrinter: Integer;

    33. 

  33.     procedure GetSettings;

    34. 

  34.     procedure SetSettings;

    35. 

  35.     procedure SetPrinter(Value: TPrinter);

    36. 

  36.     procedure SetPrinterIndex(Value: Integer);

    37. 

  37.   public

    38. 

  38.     Orientation: TPrinterOrientation;

    39. 

  39.     PaperSize: Integer;

    40. 

  40.     PaperWidth: Integer;

    41. 

  41.     PaperHeight: Integer;

    42. 

  42.     PaperSizes: Array[0..255] of Word;

    43. 

  43.     PaperSizesNum: Integer;

    44. 

  44.     constructor Create;

    45. 

  45.     destructor Destroy; override;

    46. 

  46.     procedure FillPrnInfo(var p: TfrPrnInfo);

    47. 

  47.     procedure SetPrinterInfo(pgSize, pgWidth, pgHeight: Integer;

    48. 

  48.       pgOr: TPrinterOrientation);

    49. 

  49.     function IsEqual(pgSize, pgWidth, pgHeight: Integer;

    50. 

  50.       pgOr: TPrinterOrientation): Boolean;

    51. 

  51.     function GetArrayPos(pgSize: Integer): Integer;

    52. 

  52.     property PaperNames: TStringList read FPaperNames;

    53. 

  53.     property Printer: TPrinter read FPrinter write SetPrinter;

    54. 

  54.     property Printers: TStringList read FPrinters;

    55. 

  55.     property PrinterIndex: Integer read FPrinterIndex write SetPrinterIndex;

    56. 

  56.   end;

    57. 

  57. 

    58. 

  58. 

    59. 

  59. var

    60. 

  60.   Prn: TfrPrinter;

    61. 

  61. 

    62. 

  62. implementation

    63. 

  63. 

    64. 

  64. type

    65. 

  65.   TPaperInfo = record

    66. 

  66.     Typ: Integer;

    67. 

  67.     Name: String;

    68. 

  68.     X, Y: Integer;

    69. 

  69.   end;

    70. 

  70. 

    71. 

  71. const

    72. 

  72.   PAPERCOUNT = 67;

    73. 

  73.   PaperInfo: Array[0..PAPERCOUNT - 1] of TPaperInfo = (

    74. 

  74.     (Typ:1;  Name: ''; X:2159; Y:2794),

    75. 

  75.     (Typ:2;  Name: ''; X:2159; Y:2794),

    76. 

  76.     (Typ:3;  Name: ''; X:2794; Y:4318),

    77. 

  77.     (Typ:4;  Name: ''; X:4318; Y:2794),

    78. 

  78.     (Typ:5;  Name: ''; X:2159; Y:3556),

    79. 

  79.     (Typ:6;  Name: ''; X:1397; Y:2159),

    80. 

  80.     (Typ:7;  Name: ''; X:1842; Y:2667),

    81. 

  81.     (Typ:8;  Name: ''; X:2970; Y:4200),

    82. 

  82.     (Typ:9;  Name: ''; X:2100; Y:2970),

    83. 

  83.     (Typ:10; Name: ''; X:2100; Y:2970),

    84. 

  84.     (Typ:11; Name: ''; X:1480; Y:2100),

    85. 

  85.     (Typ:12; Name: ''; X:2500; Y:3540),

    86. 

  86.     (Typ:13; Name: ''; X:1820; Y:2570),

    87. 

  87.     (Typ:14; Name: ''; X:2159; Y:3302),

    88. 

  88.     (Typ:15; Name: ''; X:2150; Y:2750),

    89. 

  89.     (Typ:16; Name: ''; X:2540; Y:3556),

    90. 

  90.     (Typ:17; Name: ''; X:2794; Y:4318),

    91. 

  91.     (Typ:18; Name: ''; X:2159; Y:2794),

    92. 

  92.     (Typ:19; Name: ''; X:984;  Y:2254),

    93. 

  93.     (Typ:20; Name: ''; X:1048; Y:2413),

    94. 

  94.     (Typ:21; Name: ''; X:1143; Y:2635),

    95. 

  95.     (Typ:22; Name: ''; X:1207; Y:2794),

    96. 

  96.     (Typ:23; Name: ''; X:1270; Y:2921),

    97. 

  97.     (Typ:24; Name: ''; X:4318; Y:5588),

    98. 

  98.     (Typ:25; Name: ''; X:5588; Y:8636),

    99. 

  99.     (Typ:26; Name: ''; X:8636; Y:11176),

    100. 

  100.     (Typ:27; Name: ''; X:1100; Y:2200),

    101. 

  101.     (Typ:28; Name: ''; X:1620; Y:2290),

    102. 

  102.     (Typ:29; Name: ''; X:3240; Y:4580),

    103. 

  103.     (Typ:30; Name: ''; X:2290; Y:3240),

    104. 

  104.     (Typ:31; Name: ''; X:1140; Y:1620),

    105. 

  105.     (Typ:32; Name: ''; X:1140; Y:2290),

    106. 

  106.     (Typ:33; Name: ''; X:2500; Y:3530),

    107. 

  107.     (Typ:34; Name: ''; X:1760; Y:2500),

    108. 

  108.     (Typ:35; Name: ''; X:1760; Y:1250),

    109. 

  109.     (Typ:36; Name: ''; X:1100; Y:2300),

    110. 

  110.     (Typ:37; Name: ''; X:984;  Y:1905),

    111. 

  111.     (Typ:38; Name: ''; X:920;  Y:1651),

    112. 

  112.     (Typ:39; Name: ''; X:3778; Y:2794),

    113. 

  113.     (Typ:40; Name: ''; X:2159; Y:3048),

    114. 

  114.     (Typ:41; Name: ''; X:2159; Y:3302),

    115. 

  115.     (Typ:42; Name: ''; X:2500; Y:3530),

    116. 

  116.     (Typ:43; Name: ''; X:1000; Y:1480),

    117. 

  117.     (Typ:44; Name: ''; X:2286; Y:2794),

    118. 

  118.     (Typ:45; Name: ''; X:2540; Y:2794),

    119. 

  119.     (Typ:46; Name: ''; X:3810; Y:2794),

    120. 

  120.     (Typ:47; Name: ''; X:2200; Y:2200),

    121. 

  121.     (Typ:50; Name: ''; X:2355; Y:3048),

    122. 

  122.     (Typ:51; Name: ''; X:2355; Y:3810),

    123. 

  123.     (Typ:52; Name: ''; X:2969; Y:4572),

    124. 

  124.     (Typ:53; Name: ''; X:2354; Y:3223),

    125. 

  125.     (Typ:54; Name: ''; X:2101; Y:2794),

    126. 

  126.     (Typ:55; Name: ''; X:2100; Y:2970),

    127. 

  127.     (Typ:56; Name: ''; X:2355; Y:3048),

    128. 

  128.     (Typ:57; Name: ''; X:2270; Y:3560),

    129. 

  129.     (Typ:58; Name: ''; X:3050; Y:4870),

    130. 

  130.     (Typ:59; Name: ''; X:2159; Y:3223),

    131. 

  131.     (Typ:60; Name: ''; X:2100; Y:3300),

    132. 

  132.     (Typ:61; Name: ''; X:1480; Y:2100),

    133. 

  133.     (Typ:62; Name: ''; X:1820; Y:2570),

    134. 

  134.     (Typ:63; Name: ''; X:3220; Y:4450),

    135. 

  135.     (Typ:64; Name: ''; X:1740; Y:2350),

    136. 

  136.     (Typ:65; Name: ''; X:2010; Y:2760),

    137. 

  137.     (Typ:66; Name: ''; X:4200; Y:5940),

    138. 

  138.     (Typ:67; Name: ''; X:2970; Y:4200),

    139. 

  139.     (Typ:68; Name: ''; X:3220; Y:4450),

    140. 

  140.     (Typ:256;Name: ''; X:0;    Y:0));

    141. 

  141. 

    142. 

  142. 

    143. 

  143. function DeviceCapabilities(pDevice, pPort: PChar; fwCapability: Word; pOutput: PChar;

    144. 

  144.   DevMode: PDeviceMode): Integer; stdcall; external winspl name 'DeviceCapabilitiesA';

    145. 

  145. 

    146. 

  146. {----------------------------------------------------------------------------}

    147. 

  147. constructor TfrPrinter.Create;

    148. 

  148. var

    149. 

  149.   i: Integer;

    150. 

  150. begin

    151. 

  151.   inherited Create;

    152. 

  152.   GetMem(FDevice, 128);

    153. 

  153.   GetMem(FDriver, 128);

    154. 

  154.   GetMem(FPort, 128);

    155. 

  155.   FPaperNames := TStringList.Create;

    156. 

  156.   FPrinters := TStringList.Create;

    157. 

  157.   for i := 0 to PAPERCOUNT - 1 do

    158. 

  158.     PaperInfo[i].Name := LoadStr(SPaper1 + i);

    159. 

  159. end;

    160. 

  160. 

    161. 

  161. destructor TfrPrinter.Destroy;

    162. 

  162. begin

    163. 

  163.   FreeMem(FDevice, 128);

    164. 

  164.   FreeMem(FDriver, 128);

    165. 

  165.   FreeMem(FPort, 128);

    166. 

  166.   FPaperNames.Free;

    167. 

  167.   FPrinters.Free;

    168. 

  168.   inherited Destroy;

    169. 

  169. end;

    170. 

  170. 

    171. 

  171. procedure TfrPrinter.GetSettings;

    172. 

  172. var

    173. 

  173.   i: Integer;

    174. 

  174.   PaperNames: PChar;

    175. 

  175.   Size: TPoint;

    176. 

  176. begin

    177. 

  177.   FPrinter.GetPrinter(FDevice, FDriver, FPort, FDeviceMode);

    178. 

  178.   try

    179. 

  179.     FMode := GlobalLock(FDeviceMode);

    180. 

  180. 

    181. 

  181.     PaperSize := FMode.dmPaperSize;

    182. 

  182. 

    183. 

  183.     Escape(FPrinter.Handle, GetPhysPageSize, 0, nil, @Size);

    184. 

  184.     PaperWidth := Round(Size.X / GetDeviceCaps(FPrinter.Handle, LOGPIXELSX) * 254);

    185. 

  185.     PaperHeight := Round(Size.Y / GetDeviceCaps(FPrinter.Handle, LOGPIXELSY) * 254);

    186. 

  186. 

    187. 

  187.     FillChar(PaperSizes, SizeOf(PaperSizes), 0);

    188. 

  188.     PaperSizesNum := DeviceCapabilities(FDevice, FPort, DC_PAPERS, @PaperSizes, FMode);

    189. 

  189. 

    190. 

  190.     GetMem(PaperNames, PaperSizesNum * 64);

    191. 

  191.     DeviceCapabilities(FDevice, FPort, DC_PAPERNAMES, PaperNames, FMode);

    192. 

  192.     FPaperNames.Clear;

    193. 

  193.     for i := 0 to PaperSizesNum - 1 do

    194. 

  194.       FPaperNames.Add(StrPas(PaperNames + i * 64));

    195. 

  195.     FreeMem(PaperNames, PaperSizesNum * 64);

    196. 

  196.   finally

    197. 

  197.     GlobalUnlock(FDeviceMode);

    198. 

  198.   end;

    199. 

  199. end;

    200. 

  200. 

    201. 

  201. procedure TfrPrinter.SetSettings;

    202. 

  202. var

    203. 

  203.   i, n: Integer;

    204. 

  204. begin

    205. 

  205.   if FPrinterIndex = FDefaultPrinter then

    206. 

  206.   begin

    207. 

  207.     FPaperNames.Clear;

    208. 

  208.     for i := 0 to PAPERCOUNT - 1 do

    209. 

  209.     begin

    210. 

  210.       FPaperNames.Add(PaperInfo[i].Name);

    211. 

  211.       PaperSizes[i] := PaperInfo[i].Typ;

    212. 

  212.       if (PaperSize <> $100) and (PaperSize = PaperInfo[i].Typ) then

    213. 

  213.       begin

    214. 

  214.         PaperWidth := PaperInfo[i].X;

    215. 

  215.         PaperHeight := PaperInfo[i].Y;

    216. 

  216.         if Orientation = poLandscape then

    217. 

  217.         begin

    218. 

  218.           n := PaperWidth; PaperWidth := PaperHeight; PaperHeight := n;

    219. 

  219.         end;

    220. 

  220.       end;

    221. 

  221.     end;

    222. 

  222.     PaperSizesNum := PAPERCOUNT;

    223. 

  223.     Exit;

    224. 

  224.   end;

    225. 

  225. 

    226. 

  226.   FPrinter.GetPrinter(FDevice, FDriver, FPort, FDeviceMode);

    227. 

  227.   try

    228. 

  228.     FMode := GlobalLock(FDeviceMode);

    229. 

  229.     if PaperSize = $100 then

    230. 

  230.     begin

    231. 

  231.       FMode.dmFields := FMode.dmFields or DM_PAPERLENGTH or DM_PAPERWIDTH;

    232. 

  232.       FMode.dmPaperLength := PaperHeight;

    233. 

  233.       FMode.dmPaperWidth := PaperWidth;

    234. 

  234.     end;

    235. 

  235. 

    236. 

  236.     if (FMode.dmFields and DM_PAPERSIZE) <> 0 then

    237. 

  237.       FMode.dmPaperSize := PaperSize;

    238. 

  238. 

    239. 

  239.     if (FMode.dmFields and DM_ORIENTATION) <> 0 then

    240. 

  240.       if Orientation = poPortrait then

    241. 

  241.         FMode.dmOrientation := DMORIENT_PORTRAIT else

    242. 

  242.         FMode.dmOrientation := DMORIENT_LANDSCAPE;

    243. 

  243. 

    244. 

  244.     if (FMode.dmFields and DM_COPIES) <> 0 then

    245. 

  245.       FMode.dmCopies := 1;

    246. 

  246. 

    247. 

  247.     FPrinter.SetPrinter(FDevice, FDriver, FPort, FDeviceMode);

    248. 

  248.   finally

    249. 

  249.     GlobalUnlock(FDeviceMode);

    250. 

  250.   end;

    251. 

  251.   GetSettings;

    252. 

  252. end;

    253. 

  253. 

    254. 

  254. procedure TfrPrinter.FillPrnInfo(var p: TfrPrnInfo);

    255. 

  255. var

    256. 

  256.   kx, ky: Double;

    257. 

  257. begin

    258. 

  258.   kx := 93 / 1.022;

    259. 

  259.   ky := 93 / 1.015;

    260. 

  260.   if FPrinterIndex = FDefaultPrinter then

    261. 

  261.     with p do

    262. 

  262.     begin

    263. 

  263.       Pgw := Round(PaperWidth * kx / 254);

    264. 

  264.       Pgh := Round(PaperHeight * ky / 254);

    265. 

  265.       Ofx := Round(50 * kx / 254);

    266. 

  266.       Ofy := Round(50 * ky / 254);

    267. 

  267.       Pw := Pgw - Ofx * 2;

    268. 

  268.       Ph := Pgh - Ofy * 2;

    269. 

  269.     end

    270. 

  270.   else

    271. 

  271.     with p, FPrinter do

    272. 

  272.     begin

    273. 

  273.       kx := kx / GetDeviceCaps(Handle, LOGPIXELSX);

    274. 

  274.       ky := ky / GetDeviceCaps(Handle, LOGPIXELSY);

    275. 

  275.       PPgw := GetDeviceCaps(Handle, PHYSICALWIDTH); Pgw := Round(PPgw * kx);

    276. 

  276.       PPgh := GetDeviceCaps(Handle, PHYSICALHEIGHT); Pgh := Round(PPgh * ky);

    277. 

  277.       POfx := GetDeviceCaps(Handle, PHYSICALOFFSETX); Ofx := Round(POfx * kx);

    278. 

  278.       POfy := GetDeviceCaps(Handle, PHYSICALOFFSETY); Ofy := Round(POfy * ky);

    279. 

  279.       PPw := PageWidth; Pw := Round(PPw * kx);

    280. 

  280.       PPh := PageHeight; Ph := Round(PPh * ky);

    281. 

  281.     end;

    282. 

  282. end;

    283. 

  283. 

    284. 

  284. function TfrPrinter.IsEqual(pgSize, pgWidth, pgHeight: Integer;

    285. 

  285.   pgOr: TPrinterOrientation): Boolean;

    286. 

  286. begin

    287. 

  287.   if (PaperSize = pgSize) and (pgSize = $100) then

    288. 

  288.     Result := (PaperSize = pgSize) and (PaperWidth = pgWidth) and

    289. 

  289.      (PaperHeight = pgHeight) and (Orientation = pgOr)

    290. 

  290.   else

    291. 

  291.     Result := (PaperSize = pgSize) and (Orientation = pgOr);

    292. 

  292. end;

    293. 

  293. 

    294. 

  294. procedure TfrPrinter.SetPrinterInfo(pgSize, pgWidth, pgHeight: Integer;

    295. 

  295.   pgOr: TPrinterOrientation);

    296. 

  296. begin

    297. 

  297.   if IsEqual(pgSize, pgWidth, pgHeight, pgOr) then Exit;

    298. 

  298.   PaperSize := pgSize;

    299. 

  299.   PaperWidth := pgWidth;

    300. 

  300.   PaperHeight := pgHeight;

    301. 

  301.   Orientation := pgOr;

    302. 

  302.   SetSettings;

    303. 

  303. end;

    304. 

  304. 

    305. 

  305. function TfrPrinter.GetArrayPos(pgSize: Integer): Integer;

    306. 

  306. var

    307. 

  307.   i: Integer;

    308. 

  308. begin

    309. 

  309.   Result := PaperSizesNum - 1;

    310. 

  310.   for i := 0 to PaperSizesNum - 1 do

    311. 

  311.     if PaperSizes[i] = pgSize then

    312. 

  312.     begin

    313. 

  313.       Result := i;

    314. 

  314.       break;

    315. 

  315.     end;

    316. 

  316. end;

    317. 

  317. 

    318. 

  318. procedure TfrPrinter.SetPrinterIndex(Value: Integer);

    319. 

  319. begin

    320. 

  320.   FPrinterIndex := Value;

    321. 

  321.   if Value = FDefaultPrinter then

    322. 

  322.     SetSettings

    323. 

  323.   else if FPrinter.Printers.Count > 0 then

    324. 

  324.   begin

    325. 

  325.     FPrinter.PrinterIndex := Value;

    326. 

  326.     GetSettings;

    327. 

  327.   end;

    328. 

  328. end;

    329. 

  329. 

    330. 

  330. procedure TfrPrinter.SetPrinter(Value: TPrinter);

    331. 

  331. begin

    332. 

  332.   FPrinters.Clear;

    333. 

  333.   FPrinterIndex := 0;

    334. 

  334.   FPrinter := Value;

    335. 

  335.   if FPrinter.Printers.Count > 0 then

    336. 

  336.   begin

    337. 

  337.     FPrinters.Assign(FPrinter.Printers);

    338. 

  338.     FPrinterIndex := FPrinter.PrinterIndex;

    339. 

  339.     GetSettings;

    340. 

  340.   end;

    341. 

  341.   FPrinters.Add(LoadStr(SDefaultPrinter));

    342. 

  342.   FDefaultPrinter := FPrinters.Count - 1;

    343. 

  343. end;

    344. 

  344. 

    345. 

  345. 

    346. 

  346. {----------------------------------------------------------------------------}

    347. 

  347. 

    348. 

  348. initialization

    349. 

  349.   Prn := TfrPrinter.Create;

    350. 

  350.   Prn.Printer := Printer;

    351. 

  351. 

    352. 

  352. finalization

    353. 

  353.   Prn.Free;

    354. 

  354. 

    355. 

  355. end.
    356.