| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/printwin.cpp |
| 3 | // Purpose: wxWindowsPrinter framework |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | // Don't use the Windows printer if we're in wxUniv mode and using |
| 28 | // the PostScript architecture |
| 29 | #if wxUSE_PRINTING_ARCHITECTURE && (!defined(__WXUNIVERSAL__) || !wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW) |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include "wx/msw/wrapcdlg.h" |
| 33 | #include "wx/window.h" |
| 34 | #include "wx/msw/private.h" |
| 35 | #include "wx/utils.h" |
| 36 | #include "wx/dc.h" |
| 37 | #include "wx/app.h" |
| 38 | #include "wx/msgdlg.h" |
| 39 | #include "wx/intl.h" |
| 40 | #include "wx/log.h" |
| 41 | #include "wx/dcprint.h" |
| 42 | #include "wx/dcmemory.h" |
| 43 | #include "wx/image.h" |
| 44 | #endif |
| 45 | |
| 46 | #include "wx/msw/dib.h" |
| 47 | #include "wx/msw/dcmemory.h" |
| 48 | #include "wx/msw/printwin.h" |
| 49 | #include "wx/msw/printdlg.h" |
| 50 | #include "wx/msw/private.h" |
| 51 | #include "wx/msw/dcprint.h" |
| 52 | #if wxUSE_ENH_METAFILE |
| 53 | #include "wx/msw/enhmeta.h" |
| 54 | #endif |
| 55 | #include <stdlib.h> |
| 56 | |
| 57 | // --------------------------------------------------------------------------- |
| 58 | // private functions |
| 59 | // --------------------------------------------------------------------------- |
| 60 | |
| 61 | BOOL CALLBACK wxAbortProc(HDC hdc, int error); |
| 62 | |
| 63 | // --------------------------------------------------------------------------- |
| 64 | // wxWin macros |
| 65 | // --------------------------------------------------------------------------- |
| 66 | |
| 67 | IMPLEMENT_DYNAMIC_CLASS(wxWindowsPrinter, wxPrinterBase) |
| 68 | IMPLEMENT_CLASS(wxWindowsPrintPreview, wxPrintPreviewBase) |
| 69 | |
| 70 | // =========================================================================== |
| 71 | // implementation |
| 72 | // =========================================================================== |
| 73 | |
| 74 | // --------------------------------------------------------------------------- |
| 75 | // Printer |
| 76 | // --------------------------------------------------------------------------- |
| 77 | |
| 78 | wxWindowsPrinter::wxWindowsPrinter(wxPrintDialogData *data) |
| 79 | : wxPrinterBase(data) |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt) |
| 84 | { |
| 85 | sm_abortIt = false; |
| 86 | sm_abortWindow = NULL; |
| 87 | |
| 88 | if (!printout) |
| 89 | { |
| 90 | sm_lastError = wxPRINTER_ERROR; |
| 91 | return false; |
| 92 | } |
| 93 | |
| 94 | if (m_printDialogData.GetMinPage() < 1) |
| 95 | m_printDialogData.SetMinPage(1); |
| 96 | if (m_printDialogData.GetMaxPage() < 1) |
| 97 | m_printDialogData.SetMaxPage(9999); |
| 98 | |
| 99 | // Create a suitable device context |
| 100 | wxPrinterDC *dc wxDUMMY_INITIALIZE(NULL); |
| 101 | if (prompt) |
| 102 | { |
| 103 | dc = wxDynamicCast(PrintDialog(parent), wxPrinterDC); |
| 104 | if (!dc) |
| 105 | return false; |
| 106 | } |
| 107 | else |
| 108 | { |
| 109 | dc = new wxPrinterDC(m_printDialogData.GetPrintData()); |
| 110 | } |
| 111 | |
| 112 | // May have pressed cancel. |
| 113 | if (!dc || !dc->IsOk()) |
| 114 | { |
| 115 | if (dc) delete dc; |
| 116 | return false; |
| 117 | } |
| 118 | |
| 119 | wxPrinterDCImpl *impl = (wxPrinterDCImpl*) dc->GetImpl(); |
| 120 | |
| 121 | HDC hdc = ::GetDC(NULL); |
| 122 | int logPPIScreenX = ::GetDeviceCaps(hdc, LOGPIXELSX); |
| 123 | int logPPIScreenY = ::GetDeviceCaps(hdc, LOGPIXELSY); |
| 124 | ::ReleaseDC(NULL, hdc); |
| 125 | |
| 126 | int logPPIPrinterX = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSX); |
| 127 | int logPPIPrinterY = ::GetDeviceCaps((HDC) impl->GetHDC(), LOGPIXELSY); |
| 128 | if (logPPIPrinterX == 0 || logPPIPrinterY == 0) |
| 129 | { |
| 130 | delete dc; |
| 131 | sm_lastError = wxPRINTER_ERROR; |
| 132 | return false; |
| 133 | } |
| 134 | |
| 135 | printout->SetPPIScreen(logPPIScreenX, logPPIScreenY); |
| 136 | printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY); |
| 137 | |
| 138 | // Set printout parameters |
| 139 | printout->SetDC(dc); |
| 140 | |
| 141 | int w, h; |
| 142 | dc->GetSize(&w, &h); |
| 143 | printout->SetPageSizePixels((int)w, (int)h); |
| 144 | printout->SetPaperRectPixels(dc->GetPaperRect()); |
| 145 | |
| 146 | dc->GetSizeMM(&w, &h); |
| 147 | printout->SetPageSizeMM((int)w, (int)h); |
| 148 | |
| 149 | // Create an abort window |
| 150 | wxBusyCursor busyCursor; |
| 151 | |
| 152 | printout->OnPreparePrinting(); |
| 153 | |
| 154 | // Get some parameters from the printout, if defined |
| 155 | int fromPage, toPage; |
| 156 | int minPage, maxPage; |
| 157 | printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage); |
| 158 | |
| 159 | if (maxPage == 0) |
| 160 | { |
| 161 | sm_lastError = wxPRINTER_ERROR; |
| 162 | return false; |
| 163 | } |
| 164 | |
| 165 | // Only set min and max, because from and to have been |
| 166 | // set by the user |
| 167 | m_printDialogData.SetMinPage(minPage); |
| 168 | m_printDialogData.SetMaxPage(maxPage); |
| 169 | |
| 170 | wxWindow *win = CreateAbortWindow(parent, printout); |
| 171 | wxYield(); |
| 172 | |
| 173 | ::SetAbortProc(GetHdcOf(*impl), wxAbortProc); |
| 174 | |
| 175 | if (!win) |
| 176 | { |
| 177 | wxLogDebug(wxT("Could not create an abort dialog.")); |
| 178 | sm_lastError = wxPRINTER_ERROR; |
| 179 | |
| 180 | delete dc; |
| 181 | return false; |
| 182 | } |
| 183 | sm_abortWindow = win; |
| 184 | sm_abortWindow->Show(); |
| 185 | wxSafeYield(); |
| 186 | |
| 187 | printout->OnBeginPrinting(); |
| 188 | |
| 189 | sm_lastError = wxPRINTER_NO_ERROR; |
| 190 | |
| 191 | int minPageNum = minPage, maxPageNum = maxPage; |
| 192 | |
| 193 | if ( !m_printDialogData.GetAllPages() ) |
| 194 | { |
| 195 | minPageNum = m_printDialogData.GetFromPage(); |
| 196 | maxPageNum = m_printDialogData.GetToPage(); |
| 197 | } |
| 198 | |
| 199 | int copyCount; |
| 200 | for ( copyCount = 1; |
| 201 | copyCount <= m_printDialogData.GetNoCopies(); |
| 202 | copyCount++ ) |
| 203 | { |
| 204 | if ( !printout->OnBeginDocument(minPageNum, maxPageNum) ) |
| 205 | { |
| 206 | wxLogError(_("Could not start printing.")); |
| 207 | sm_lastError = wxPRINTER_ERROR; |
| 208 | break; |
| 209 | } |
| 210 | if (sm_abortIt) |
| 211 | { |
| 212 | sm_lastError = wxPRINTER_CANCELLED; |
| 213 | break; |
| 214 | } |
| 215 | |
| 216 | int pn; |
| 217 | |
| 218 | for ( pn = minPageNum; |
| 219 | pn <= maxPageNum && printout->HasPage(pn); |
| 220 | pn++ ) |
| 221 | { |
| 222 | if ( sm_abortIt ) |
| 223 | { |
| 224 | sm_lastError = wxPRINTER_CANCELLED; |
| 225 | break; |
| 226 | } |
| 227 | |
| 228 | dc->StartPage(); |
| 229 | bool cont = printout->OnPrintPage(pn); |
| 230 | dc->EndPage(); |
| 231 | |
| 232 | if ( !cont ) |
| 233 | { |
| 234 | sm_lastError = wxPRINTER_CANCELLED; |
| 235 | break; |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | printout->OnEndDocument(); |
| 240 | } |
| 241 | |
| 242 | printout->OnEndPrinting(); |
| 243 | |
| 244 | if (sm_abortWindow) |
| 245 | { |
| 246 | sm_abortWindow->Show(false); |
| 247 | wxDELETE(sm_abortWindow); |
| 248 | } |
| 249 | |
| 250 | delete dc; |
| 251 | |
| 252 | return sm_lastError == wxPRINTER_NO_ERROR; |
| 253 | } |
| 254 | |
| 255 | wxDC *wxWindowsPrinter::PrintDialog(wxWindow *parent) |
| 256 | { |
| 257 | wxDC *dc = NULL; |
| 258 | |
| 259 | wxWindowsPrintDialog dialog(parent, & m_printDialogData); |
| 260 | int ret = dialog.ShowModal(); |
| 261 | |
| 262 | if (ret == wxID_OK) |
| 263 | { |
| 264 | dc = dialog.GetPrintDC(); |
| 265 | m_printDialogData = dialog.GetPrintDialogData(); |
| 266 | if (dc == NULL) |
| 267 | sm_lastError = wxPRINTER_ERROR; |
| 268 | else |
| 269 | sm_lastError = wxPRINTER_NO_ERROR; |
| 270 | } |
| 271 | else |
| 272 | sm_lastError = wxPRINTER_CANCELLED; |
| 273 | |
| 274 | return dc; |
| 275 | } |
| 276 | |
| 277 | bool wxWindowsPrinter::Setup(wxWindow *WXUNUSED(parent)) |
| 278 | { |
| 279 | #if 0 |
| 280 | // We no longer expose that dialog |
| 281 | wxPrintDialog dialog(parent, & m_printDialogData); |
| 282 | dialog.GetPrintDialogData().SetSetupDialog(true); |
| 283 | |
| 284 | int ret = dialog.ShowModal(); |
| 285 | |
| 286 | if (ret == wxID_OK) |
| 287 | { |
| 288 | m_printDialogData = dialog.GetPrintDialogData(); |
| 289 | } |
| 290 | |
| 291 | return (ret == wxID_OK); |
| 292 | #else |
| 293 | return false; |
| 294 | #endif |
| 295 | } |
| 296 | |
| 297 | /* |
| 298 | * Print preview |
| 299 | */ |
| 300 | |
| 301 | wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout, |
| 302 | wxPrintout *printoutForPrinting, |
| 303 | wxPrintDialogData *data) |
| 304 | : wxPrintPreviewBase(printout, printoutForPrinting, data) |
| 305 | { |
| 306 | DetermineScaling(); |
| 307 | } |
| 308 | |
| 309 | wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout, |
| 310 | wxPrintout *printoutForPrinting, |
| 311 | wxPrintData *data) |
| 312 | : wxPrintPreviewBase(printout, printoutForPrinting, data) |
| 313 | { |
| 314 | DetermineScaling(); |
| 315 | } |
| 316 | |
| 317 | wxWindowsPrintPreview::~wxWindowsPrintPreview() |
| 318 | { |
| 319 | } |
| 320 | |
| 321 | bool wxWindowsPrintPreview::Print(bool interactive) |
| 322 | { |
| 323 | if (!m_printPrintout) |
| 324 | return false; |
| 325 | wxWindowsPrinter printer(&m_printDialogData); |
| 326 | return printer.Print(m_previewFrame, m_printPrintout, interactive); |
| 327 | } |
| 328 | |
| 329 | void wxWindowsPrintPreview::DetermineScaling() |
| 330 | { |
| 331 | ScreenHDC dc; |
| 332 | int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX); |
| 333 | int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY); |
| 334 | m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY); |
| 335 | |
| 336 | // Get a device context for the currently selected printer |
| 337 | wxPrinterDC printerDC(m_printDialogData.GetPrintData()); |
| 338 | |
| 339 | int printerWidthMM; |
| 340 | int printerHeightMM; |
| 341 | int printerXRes; |
| 342 | int printerYRes; |
| 343 | int logPPIPrinterX; |
| 344 | int logPPIPrinterY; |
| 345 | |
| 346 | wxRect paperRect; |
| 347 | |
| 348 | if ( printerDC.IsOk() ) |
| 349 | { |
| 350 | wxPrinterDCImpl *impl = (wxPrinterDCImpl*) printerDC.GetImpl(); |
| 351 | HDC dc = GetHdcOf(*impl); |
| 352 | printerWidthMM = ::GetDeviceCaps(dc, HORZSIZE); |
| 353 | printerHeightMM = ::GetDeviceCaps(dc, VERTSIZE); |
| 354 | printerXRes = ::GetDeviceCaps(dc, HORZRES); |
| 355 | printerYRes = ::GetDeviceCaps(dc, VERTRES); |
| 356 | logPPIPrinterX = ::GetDeviceCaps(dc, LOGPIXELSX); |
| 357 | logPPIPrinterY = ::GetDeviceCaps(dc, LOGPIXELSY); |
| 358 | |
| 359 | paperRect = printerDC.GetPaperRect(); |
| 360 | |
| 361 | if ( logPPIPrinterX == 0 || |
| 362 | logPPIPrinterY == 0 || |
| 363 | printerWidthMM == 0 || |
| 364 | printerHeightMM == 0 ) |
| 365 | { |
| 366 | m_isOk = false; |
| 367 | } |
| 368 | } |
| 369 | else |
| 370 | { |
| 371 | // use some defaults |
| 372 | printerWidthMM = 150; |
| 373 | printerHeightMM = 250; |
| 374 | printerXRes = 1500; |
| 375 | printerYRes = 2500; |
| 376 | logPPIPrinterX = 600; |
| 377 | logPPIPrinterY = 600; |
| 378 | |
| 379 | paperRect = wxRect(0, 0, printerXRes, printerYRes); |
| 380 | m_isOk = false; |
| 381 | } |
| 382 | m_pageWidth = printerXRes; |
| 383 | m_pageHeight = printerYRes; |
| 384 | m_previewPrintout->SetPageSizePixels(printerXRes, printerYRes); |
| 385 | m_previewPrintout->SetPageSizeMM(printerWidthMM, printerHeightMM); |
| 386 | m_previewPrintout->SetPaperRectPixels(paperRect); |
| 387 | m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY); |
| 388 | |
| 389 | // At 100%, the page should look about page-size on the screen. |
| 390 | m_previewScaleX = float(logPPIScreenX) / logPPIPrinterX; |
| 391 | m_previewScaleY = float(logPPIScreenY) / logPPIPrinterY; |
| 392 | } |
| 393 | |
| 394 | #if wxUSE_ENH_METAFILE |
| 395 | bool wxWindowsPrintPreview::RenderPageIntoBitmap(wxBitmap& bmp, int pageNum) |
| 396 | { |
| 397 | // The preview, as implemented in wxPrintPreviewBase (and as used prior to |
| 398 | // wx3) is inexact: it uses screen DC, which has much lower resolution and |
| 399 | // has other properties different from printer DC, so the preview is not |
| 400 | // quite right. |
| 401 | // |
| 402 | // To make matters worse, if the application depends heavily on |
| 403 | // GetTextExtent() or does text layout itself, the output in preview and on |
| 404 | // paper can be very different. In particular, wxHtmlEasyPrinting is |
| 405 | // affected and the preview can be easily off by several pages. |
| 406 | // |
| 407 | // To fix this, we render the preview into high-resolution enhanced |
| 408 | // metafile with properties identical to the printer DC. This guarantees |
| 409 | // metrics correctness while still being fast. |
| 410 | |
| 411 | |
| 412 | // print the preview into a metafile: |
| 413 | wxPrinterDC printerDC(m_printDialogData.GetPrintData()); |
| 414 | wxEnhMetaFileDC metaDC(printerDC, |
| 415 | wxEmptyString, |
| 416 | printerDC.GetSize().x, printerDC.GetSize().y); |
| 417 | |
| 418 | if ( !RenderPageIntoDC(metaDC, pageNum) ) |
| 419 | return false; |
| 420 | |
| 421 | wxEnhMetaFile *metafile = metaDC.Close(); |
| 422 | if ( !metafile ) |
| 423 | return false; |
| 424 | |
| 425 | // now render the metafile: |
| 426 | wxMemoryDC bmpDC; |
| 427 | bmpDC.SelectObject(bmp); |
| 428 | bmpDC.Clear(); |
| 429 | |
| 430 | wxRect outRect(0, 0, bmp.GetWidth(), bmp.GetHeight()); |
| 431 | metafile->Play(&bmpDC, &outRect); |
| 432 | |
| 433 | |
| 434 | delete metafile; |
| 435 | |
| 436 | // TODO: we should keep the metafile and reuse it when changing zoom level |
| 437 | |
| 438 | return true; |
| 439 | } |
| 440 | #endif // wxUSE_ENH_METAFILE |
| 441 | |
| 442 | BOOL CALLBACK wxAbortProc(HDC WXUNUSED(hdc), int WXUNUSED(error)) |
| 443 | { |
| 444 | MSG msg; |
| 445 | |
| 446 | if (!wxPrinterBase::sm_abortWindow) /* If the abort dialog isn't up yet */ |
| 447 | return(TRUE); |
| 448 | |
| 449 | /* Process messages intended for the abort dialog box */ |
| 450 | |
| 451 | while (!wxPrinterBase::sm_abortIt && ::PeekMessage(&msg, 0, 0, 0, TRUE)) |
| 452 | if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) { |
| 453 | TranslateMessage(&msg); |
| 454 | DispatchMessage(&msg); |
| 455 | } |
| 456 | |
| 457 | /* bAbort is TRUE (return is FALSE) if the user has aborted */ |
| 458 | |
| 459 | return !wxPrinterBase::sm_abortIt; |
| 460 | } |
| 461 | |
| 462 | #endif |
| 463 | // wxUSE_PRINTING_ARCHITECTURE |