| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: 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 and Markus Holzem |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "printwin.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #include "wx/defs.h" |
| 24 | |
| 25 | #define WINDOWS_PRINTING (wxTheApp->GetPrintMode() == wxPRINT_WINDOWS) |
| 26 | |
| 27 | #ifndef WX_PRECOMP |
| 28 | #include "wx/utils.h" |
| 29 | #include "wx/dc.h" |
| 30 | #include "wx/app.h" |
| 31 | #include "wx/msgdlg.h" |
| 32 | #endif |
| 33 | |
| 34 | #include "wx/msw/printwin.h" |
| 35 | #include "wx/dcprint.h" |
| 36 | #include "wx/printdlg.h" |
| 37 | #include "wx/msw/private.h" |
| 38 | |
| 39 | #include <stdlib.h> |
| 40 | #include <windows.h> |
| 41 | #include <commdlg.h> |
| 42 | |
| 43 | // Clash with Windows header files |
| 44 | #ifdef StartDoc |
| 45 | #undef StartDoc |
| 46 | #endif |
| 47 | |
| 48 | #ifndef __WIN32__ |
| 49 | #include <print.h> |
| 50 | #endif |
| 51 | |
| 52 | LONG APIENTRY _EXPORT wxAbortProc(HDC hPr, int Code); |
| 53 | |
| 54 | #if !USE_SHARED_LIBRARY |
| 55 | IMPLEMENT_DYNAMIC_CLASS(wxWindowsPrinter, wxPrinterBase) |
| 56 | IMPLEMENT_CLASS(wxWindowsPrintPreview, wxPrintPreviewBase) |
| 57 | #endif |
| 58 | |
| 59 | /* |
| 60 | * Printer |
| 61 | */ |
| 62 | |
| 63 | wxWindowsPrinter::wxWindowsPrinter(wxPrintData *data): |
| 64 | wxPrinterBase(data) |
| 65 | { |
| 66 | m_lpAbortProc = (WXFARPROC) MakeProcInstance((FARPROC) wxAbortProc, wxGetInstance()); |
| 67 | } |
| 68 | |
| 69 | wxWindowsPrinter::~wxWindowsPrinter(void) |
| 70 | { |
| 71 | FreeProcInstance((FARPROC) m_lpAbortProc); |
| 72 | } |
| 73 | |
| 74 | bool wxWindowsPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt) |
| 75 | { |
| 76 | sm_abortIt = FALSE; |
| 77 | sm_abortWindow = NULL; |
| 78 | |
| 79 | if (!printout) |
| 80 | return FALSE; |
| 81 | |
| 82 | printout->SetIsPreview(FALSE); |
| 83 | printout->OnPreparePrinting(); |
| 84 | |
| 85 | // Get some parameters from the printout, if defined |
| 86 | int fromPage, toPage; |
| 87 | int minPage, maxPage; |
| 88 | printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage); |
| 89 | |
| 90 | if (maxPage == 0) |
| 91 | return FALSE; |
| 92 | |
| 93 | m_printData.SetMinPage(minPage); |
| 94 | m_printData.SetMaxPage(maxPage); |
| 95 | if (fromPage != 0) |
| 96 | m_printData.SetFromPage(fromPage); |
| 97 | if (toPage != 0) |
| 98 | m_printData.SetToPage(toPage); |
| 99 | |
| 100 | if (minPage != 0) |
| 101 | { |
| 102 | m_printData.EnablePageNumbers(TRUE); |
| 103 | if (m_printData.GetFromPage() < m_printData.GetMinPage()) |
| 104 | m_printData.SetFromPage(m_printData.GetMinPage()); |
| 105 | else if (m_printData.GetFromPage() > m_printData.GetMaxPage()) |
| 106 | m_printData.SetFromPage(m_printData.GetMaxPage()); |
| 107 | if (m_printData.GetToPage() > m_printData.GetMaxPage()) |
| 108 | m_printData.SetToPage(m_printData.GetMaxPage()); |
| 109 | else if (m_printData.GetToPage() < m_printData.GetMinPage()) |
| 110 | m_printData.SetToPage(m_printData.GetMinPage()); |
| 111 | } |
| 112 | else |
| 113 | m_printData.EnablePageNumbers(FALSE); |
| 114 | |
| 115 | // Create a suitable device context |
| 116 | wxDC *dc = NULL; |
| 117 | if (prompt) |
| 118 | { |
| 119 | wxPrintDialog dialog(parent, & m_printData); |
| 120 | if (dialog.ShowModal() == wxID_OK) |
| 121 | { |
| 122 | dc = dialog.GetPrintDC(); |
| 123 | m_printData = dialog.GetPrintData(); |
| 124 | } |
| 125 | } |
| 126 | else |
| 127 | { |
| 128 | dc = new wxPrinterDC("", "", "", FALSE, m_printData.GetOrientation()); |
| 129 | } |
| 130 | |
| 131 | // May have pressed cancel. |
| 132 | if (!dc || !dc->Ok()) |
| 133 | { |
| 134 | if (dc) delete dc; |
| 135 | return FALSE; |
| 136 | } |
| 137 | |
| 138 | int logPPIScreenX = 0; |
| 139 | int logPPIScreenY = 0; |
| 140 | int logPPIPrinterX = 0; |
| 141 | int logPPIPrinterY = 0; |
| 142 | |
| 143 | HDC hdc = ::GetDC(NULL); |
| 144 | logPPIScreenX = ::GetDeviceCaps(hdc, LOGPIXELSX); |
| 145 | logPPIScreenY = ::GetDeviceCaps(hdc, LOGPIXELSY); |
| 146 | ::ReleaseDC(NULL, hdc); |
| 147 | |
| 148 | logPPIPrinterX = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSX); |
| 149 | logPPIPrinterY = ::GetDeviceCaps((HDC) dc->GetHDC(), LOGPIXELSY); |
| 150 | if (logPPIPrinterX == 0 || logPPIPrinterY == 0) |
| 151 | { |
| 152 | delete dc; |
| 153 | return FALSE; |
| 154 | } |
| 155 | |
| 156 | printout->SetPPIScreen(logPPIScreenX, logPPIScreenY); |
| 157 | printout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY); |
| 158 | |
| 159 | // Set printout parameters |
| 160 | printout->SetDC(dc); |
| 161 | |
| 162 | int w, h; |
| 163 | long ww, hh; |
| 164 | dc->GetSize(&w, &h); |
| 165 | printout->SetPageSizePixels((int)w, (int)h); |
| 166 | dc->GetSizeMM(&ww, &hh); |
| 167 | printout->SetPageSizeMM((int)ww, (int)hh); |
| 168 | |
| 169 | // Create an abort window |
| 170 | wxBeginBusyCursor(); |
| 171 | |
| 172 | wxWindow *win = CreateAbortWindow(parent, printout); |
| 173 | wxYield(); |
| 174 | |
| 175 | #if defined(__BORLANDC__) || defined(__GNUWIN32__) || !defined(__WIN32__) |
| 176 | ::SetAbortProc((HDC) dc->GetHDC(), (FARPROC) m_lpAbortProc); |
| 177 | #else |
| 178 | ::SetAbortProc((HDC) dc->GetHDC(), (int (_stdcall *) |
| 179 | // cast it to right type only if required |
| 180 | // @@@ it's really cdecl and we're casting it to stdcall - either there is |
| 181 | // something I don't understand or it will crash at first usage |
| 182 | #ifdef STRICT |
| 183 | (HDC, int) |
| 184 | #else |
| 185 | () |
| 186 | #endif |
| 187 | )m_lpAbortProc); |
| 188 | #endif |
| 189 | |
| 190 | if (!win) |
| 191 | { |
| 192 | wxEndBusyCursor(); |
| 193 | wxMessageBox("Sorry, could not create an abort dialog.", "Print Error", wxOK, parent); |
| 194 | delete dc; |
| 195 | } |
| 196 | sm_abortWindow = win; |
| 197 | sm_abortWindow->Show(TRUE); |
| 198 | wxYield(); |
| 199 | |
| 200 | printout->OnBeginPrinting(); |
| 201 | |
| 202 | bool keepGoing = TRUE; |
| 203 | |
| 204 | int copyCount; |
| 205 | for (copyCount = 1; copyCount <= m_printData.GetNoCopies(); copyCount ++) |
| 206 | { |
| 207 | if (!printout->OnBeginDocument(m_printData.GetFromPage(), m_printData.GetToPage())) |
| 208 | { |
| 209 | wxEndBusyCursor(); |
| 210 | wxMessageBox("Could not start printing.", "Print Error", wxOK, parent); |
| 211 | break; |
| 212 | } |
| 213 | if (sm_abortIt) |
| 214 | break; |
| 215 | |
| 216 | int pn; |
| 217 | for (pn = m_printData.GetFromPage(); keepGoing && (pn <= m_printData.GetToPage()) && printout->HasPage(pn); |
| 218 | pn++) |
| 219 | { |
| 220 | if (sm_abortIt) |
| 221 | { |
| 222 | keepGoing = FALSE; |
| 223 | break; |
| 224 | } |
| 225 | else |
| 226 | { |
| 227 | // int dcID = ::SaveDC(dc->GetHDC()); |
| 228 | dc->StartPage(); |
| 229 | printout->OnPrintPage(pn); |
| 230 | dc->EndPage(); |
| 231 | // ::RestoreDC(dc->GetHDC(), dcID); |
| 232 | } |
| 233 | } |
| 234 | printout->OnEndDocument(); |
| 235 | } |
| 236 | |
| 237 | printout->OnEndPrinting(); |
| 238 | |
| 239 | if (sm_abortWindow) |
| 240 | { |
| 241 | sm_abortWindow->Show(FALSE); |
| 242 | delete sm_abortWindow; |
| 243 | sm_abortWindow = NULL; |
| 244 | } |
| 245 | |
| 246 | wxEndBusyCursor(); |
| 247 | |
| 248 | delete dc; |
| 249 | |
| 250 | return TRUE; |
| 251 | } |
| 252 | |
| 253 | bool wxWindowsPrinter::PrintDialog(wxWindow *parent) |
| 254 | { |
| 255 | wxPrintDialog dialog(parent, & m_printData); |
| 256 | return (dialog.ShowModal() == wxID_OK); |
| 257 | } |
| 258 | |
| 259 | bool wxWindowsPrinter::Setup(wxWindow *parent) |
| 260 | { |
| 261 | wxPrintDialog dialog(parent, & m_printData); |
| 262 | dialog.GetPrintData().SetSetupDialog(TRUE); |
| 263 | return (dialog.ShowModal() == wxID_OK); |
| 264 | } |
| 265 | |
| 266 | /* |
| 267 | * Print preview |
| 268 | */ |
| 269 | |
| 270 | wxWindowsPrintPreview::wxWindowsPrintPreview(wxPrintout *printout, wxPrintout *printoutForPrinting, wxPrintData *data): |
| 271 | wxPrintPreviewBase(printout, printoutForPrinting, data) |
| 272 | { |
| 273 | DetermineScaling(); |
| 274 | } |
| 275 | |
| 276 | wxWindowsPrintPreview::~wxWindowsPrintPreview(void) |
| 277 | { |
| 278 | } |
| 279 | |
| 280 | bool wxWindowsPrintPreview::Print(bool interactive) |
| 281 | { |
| 282 | if (!m_printPrintout) |
| 283 | return FALSE; |
| 284 | wxWindowsPrinter printer(&m_printData); |
| 285 | return printer.Print(m_previewFrame, m_printPrintout, interactive); |
| 286 | } |
| 287 | |
| 288 | void wxWindowsPrintPreview::DetermineScaling(void) |
| 289 | { |
| 290 | HDC dc = ::GetDC(NULL); |
| 291 | int screenWidth = ::GetDeviceCaps(dc, HORZSIZE); |
| 292 | // int screenHeight = ::GetDeviceCaps(dc, VERTSIZE); |
| 293 | int screenXRes = ::GetDeviceCaps(dc, HORZRES); |
| 294 | // int screenYRes = ::GetDeviceCaps(dc, VERTRES); |
| 295 | int logPPIScreenX = ::GetDeviceCaps(dc, LOGPIXELSX); |
| 296 | int logPPIScreenY = ::GetDeviceCaps(dc, LOGPIXELSY); |
| 297 | m_previewPrintout->SetPPIScreen(logPPIScreenX, logPPIScreenY); |
| 298 | |
| 299 | ::ReleaseDC(NULL, dc); |
| 300 | |
| 301 | // Get a device context for the currently selected printer |
| 302 | wxPrinterDC printerDC("", "", "", FALSE, m_printData.GetOrientation()); |
| 303 | |
| 304 | int printerWidth = 150; |
| 305 | int printerHeight = 250; |
| 306 | int printerXRes = 1500; |
| 307 | int printerYRes = 2500; |
| 308 | |
| 309 | if (printerDC.GetHDC()) |
| 310 | { |
| 311 | printerWidth = ::GetDeviceCaps((HDC) printerDC.GetHDC(), HORZSIZE); |
| 312 | printerHeight = ::GetDeviceCaps((HDC) printerDC.GetHDC(), VERTSIZE); |
| 313 | printerXRes = ::GetDeviceCaps((HDC) printerDC.GetHDC(), HORZRES); |
| 314 | printerYRes = ::GetDeviceCaps((HDC) printerDC.GetHDC(), VERTRES); |
| 315 | |
| 316 | int logPPIPrinterX = ::GetDeviceCaps((HDC) printerDC.GetHDC(), LOGPIXELSX); |
| 317 | int logPPIPrinterY = ::GetDeviceCaps((HDC) printerDC.GetHDC(), LOGPIXELSY); |
| 318 | |
| 319 | m_previewPrintout->SetPPIPrinter(logPPIPrinterX, logPPIPrinterY); |
| 320 | m_previewPrintout->SetPageSizeMM(printerWidth, printerHeight); |
| 321 | |
| 322 | if (logPPIPrinterX == 0 || logPPIPrinterY == 0 || printerWidth == 0 || printerHeight == 0) |
| 323 | m_isOk = FALSE; |
| 324 | } |
| 325 | else |
| 326 | m_isOk = FALSE; |
| 327 | |
| 328 | m_pageWidth = printerXRes; |
| 329 | m_pageHeight = printerYRes; |
| 330 | |
| 331 | // At 100%, the page should look about page-size on the screen. |
| 332 | m_previewScale = (float)((float)screenWidth/(float)printerWidth); |
| 333 | m_previewScale = m_previewScale * (float)((float)screenXRes/(float)printerYRes); |
| 334 | } |
| 335 | |
| 336 | /**************************************************************************** |
| 337 | |
| 338 | FUNCTION: wxAbortProc() |
| 339 | |
| 340 | PURPOSE: Processes messages for the Abort Dialog box |
| 341 | |
| 342 | ****************************************************************************/ |
| 343 | |
| 344 | LONG APIENTRY _EXPORT wxAbortProc(HDC WXUNUSED(hPr), int WXUNUSED(Code)) |
| 345 | { |
| 346 | MSG msg; |
| 347 | |
| 348 | if (!wxPrinterBase::sm_abortWindow) /* If the abort dialog isn't up yet */ |
| 349 | return(TRUE); |
| 350 | |
| 351 | /* Process messages intended for the abort dialog box */ |
| 352 | |
| 353 | while (!wxPrinterBase::sm_abortIt && PeekMessage(&msg, 0, 0, 0, TRUE)) |
| 354 | if (!IsDialogMessage((HWND) wxPrinterBase::sm_abortWindow->GetHWND(), &msg)) { |
| 355 | TranslateMessage(&msg); |
| 356 | DispatchMessage(&msg); |
| 357 | } |
| 358 | |
| 359 | /* bAbort is TRUE (return is FALSE) if the user has aborted */ |
| 360 | |
| 361 | return (!wxPrinterBase::sm_abortIt); |
| 362 | } |
| 363 | |