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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: prntbase.cpp | |
3 | // Purpose: Printing framework base class implementation | |
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 "prntbase.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 | #if wxUSE_PRINTING_ARCHITECTURE | |
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 | #include "wx/layout.h" | |
33 | #include "wx/choice.h" | |
34 | #include "wx/button.h" | |
35 | #include "wx/settings.h" | |
36 | #include "wx/dcmemory.h" | |
37 | #include "wx/stattext.h" | |
38 | #include "wx/intl.h" | |
39 | #endif | |
40 | ||
41 | #include "wx/prntbase.h" | |
42 | #include "wx/dcprint.h" | |
43 | #include "wx/printdlg.h" | |
44 | #include "wx/module.h" | |
45 | ||
46 | #include <stdlib.h> | |
47 | #include <string.h> | |
48 | ||
49 | #include <wx/sizer.h> | |
50 | ||
51 | #ifdef __WXMSW__ | |
52 | #include "wx/msw/private.h" | |
53 | #include <commdlg.h> | |
54 | ||
55 | #ifndef __WIN32__ | |
56 | #include <print.h> | |
57 | #endif | |
58 | #endif // __WXMSW__ | |
59 | ||
60 | IMPLEMENT_CLASS(wxPrinterBase, wxObject) | |
61 | IMPLEMENT_ABSTRACT_CLASS(wxPrintout, wxObject) | |
62 | IMPLEMENT_CLASS(wxPreviewCanvas, wxWindow) | |
63 | IMPLEMENT_CLASS(wxPreviewControlBar, wxWindow) | |
64 | IMPLEMENT_CLASS(wxPreviewFrame, wxFrame) | |
65 | IMPLEMENT_CLASS(wxPrintPreviewBase, wxObject) | |
66 | ||
67 | BEGIN_EVENT_TABLE(wxPrintAbortDialog, wxDialog) | |
68 | EVT_BUTTON(wxID_CANCEL, wxPrintAbortDialog::OnCancel) | |
69 | END_EVENT_TABLE() | |
70 | ||
71 | BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow) | |
72 | EVT_PAINT(wxPreviewCanvas::OnPaint) | |
73 | EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged) | |
74 | END_EVENT_TABLE() | |
75 | ||
76 | /* | |
77 | * Printer | |
78 | */ | |
79 | ||
80 | wxPrinterBase::wxPrinterBase(wxPrintDialogData *data) | |
81 | { | |
82 | m_currentPrintout = (wxPrintout *) NULL; | |
83 | sm_abortWindow = (wxWindow *) NULL; | |
84 | sm_abortIt = FALSE; | |
85 | if (data) | |
86 | m_printDialogData = (*data); | |
87 | sm_lastError = wxPRINTER_NO_ERROR; | |
88 | } | |
89 | ||
90 | wxWindow *wxPrinterBase::sm_abortWindow = (wxWindow *) NULL; | |
91 | bool wxPrinterBase::sm_abortIt = FALSE; | |
92 | wxPrinterError wxPrinterBase::sm_lastError = wxPRINTER_NO_ERROR; | |
93 | ||
94 | wxPrinterBase::~wxPrinterBase() | |
95 | { | |
96 | } | |
97 | ||
98 | void wxPrintAbortDialog::OnCancel(wxCommandEvent& WXUNUSED(event)) | |
99 | { | |
100 | wxPrinterBase::sm_abortIt = TRUE; | |
101 | wxPrinterBase::sm_abortWindow->Show(FALSE); | |
102 | wxPrinterBase::sm_abortWindow->Close(TRUE); | |
103 | wxPrinterBase::sm_abortWindow = (wxWindow *) NULL; | |
104 | } | |
105 | ||
106 | wxWindow *wxPrinterBase::CreateAbortWindow(wxWindow *parent, wxPrintout * printout) | |
107 | { | |
108 | wxPrintAbortDialog *dialog = new wxPrintAbortDialog(parent, _("Printing ") , wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE); | |
109 | ||
110 | wxBoxSizer *button_sizer = new wxBoxSizer( wxVERTICAL ); | |
111 | button_sizer->Add( new wxStaticText(dialog, -1, _("Please wait while printing\n") + printout->GetTitle() ), 0, wxALL, 10 ); | |
112 | button_sizer->Add( new wxButton( dialog, wxID_CANCEL, wxT("Cancel") ), 0, wxALL | wxALIGN_CENTER, 10 ); | |
113 | ||
114 | dialog->SetAutoLayout( TRUE ); | |
115 | dialog->SetSizer( button_sizer ); | |
116 | ||
117 | button_sizer->Fit(dialog); | |
118 | button_sizer->SetSizeHints (dialog) ; | |
119 | ||
120 | return dialog; | |
121 | } | |
122 | ||
123 | void wxPrinterBase::ReportError(wxWindow *parent, wxPrintout *WXUNUSED(printout), const wxString& message) | |
124 | { | |
125 | wxMessageBox(message, _("Printing Error"), wxOK, parent); | |
126 | } | |
127 | ||
128 | /* | |
129 | * Printout class | |
130 | */ | |
131 | ||
132 | wxPrintout::wxPrintout(const wxString& title) | |
133 | { | |
134 | m_printoutTitle = title ; | |
135 | m_printoutDC = (wxDC *) NULL; | |
136 | m_pageWidthMM = 0; | |
137 | m_pageHeightMM = 0; | |
138 | m_pageWidthPixels = 0; | |
139 | m_pageHeightPixels = 0; | |
140 | m_PPIScreenX = 0; | |
141 | m_PPIScreenY = 0; | |
142 | m_PPIPrinterX = 0; | |
143 | m_PPIPrinterY = 0; | |
144 | m_isPreview = FALSE; | |
145 | } | |
146 | ||
147 | wxPrintout::~wxPrintout() | |
148 | { | |
149 | } | |
150 | ||
151 | bool wxPrintout::OnBeginDocument(int WXUNUSED(startPage), int WXUNUSED(endPage)) | |
152 | { | |
153 | return GetDC()->StartDoc(_("Printing ") + m_printoutTitle); | |
154 | } | |
155 | ||
156 | void wxPrintout::OnEndDocument() | |
157 | { | |
158 | GetDC()->EndDoc(); | |
159 | } | |
160 | ||
161 | void wxPrintout::OnBeginPrinting() | |
162 | { | |
163 | } | |
164 | ||
165 | void wxPrintout::OnEndPrinting() | |
166 | { | |
167 | } | |
168 | ||
169 | bool wxPrintout::HasPage(int page) | |
170 | { | |
171 | return (page == 1); | |
172 | } | |
173 | ||
174 | void wxPrintout::GetPageInfo(int *minPage, int *maxPage, int *fromPage, int *toPage) | |
175 | { | |
176 | *minPage = 1; | |
177 | *maxPage = 32000; | |
178 | *fromPage = 1; | |
179 | *toPage = 1; | |
180 | } | |
181 | ||
182 | /* | |
183 | * Preview canvas | |
184 | */ | |
185 | ||
186 | wxPreviewCanvas::wxPreviewCanvas(wxPrintPreviewBase *preview, wxWindow *parent, | |
187 | const wxPoint& pos, const wxSize& size, long style, const wxString& name): | |
188 | wxScrolledWindow(parent, -1, pos, size, style, name) | |
189 | { | |
190 | m_printPreview = preview; | |
191 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE)); | |
192 | ||
193 | SetScrollbars(15, 18, 100, 100); | |
194 | } | |
195 | ||
196 | wxPreviewCanvas::~wxPreviewCanvas() | |
197 | { | |
198 | } | |
199 | ||
200 | void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event)) | |
201 | { | |
202 | wxPaintDC dc(this); | |
203 | PrepareDC( dc ); | |
204 | ||
205 | /* | |
206 | #ifdef __WXGTK__ | |
207 | if (!GetUpdateRegion().IsEmpty()) | |
208 | dc.SetClippingRegion( GetUpdateRegion() ); | |
209 | #endif | |
210 | */ | |
211 | ||
212 | if (m_printPreview) | |
213 | { | |
214 | m_printPreview->PaintPage(this, dc); | |
215 | } | |
216 | } | |
217 | ||
218 | // Responds to colour changes, and passes event on to children. | |
219 | void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event) | |
220 | { | |
221 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE)); | |
222 | Refresh(); | |
223 | ||
224 | // Propagate the event to the non-top-level children | |
225 | wxWindow::OnSysColourChanged(event); | |
226 | } | |
227 | ||
228 | /* | |
229 | * Preview control bar | |
230 | */ | |
231 | ||
232 | BEGIN_EVENT_TABLE(wxPreviewControlBar, wxPanel) | |
233 | EVT_BUTTON(wxID_PREVIEW_CLOSE, wxPreviewControlBar::OnWindowClose) | |
234 | EVT_BUTTON(wxID_PREVIEW_PRINT, wxPreviewControlBar::OnPrint) | |
235 | EVT_BUTTON(wxID_PREVIEW_PREVIOUS, wxPreviewControlBar::OnPreviousButton) | |
236 | EVT_BUTTON(wxID_PREVIEW_NEXT, wxPreviewControlBar::OnNextButton) | |
237 | EVT_CHAR(wxPreviewControlBar::OnChar) | |
238 | EVT_CHOICE(wxID_PREVIEW_ZOOM, wxPreviewControlBar::OnZoom) | |
239 | EVT_PAINT(wxPreviewControlBar::OnPaint) | |
240 | END_EVENT_TABLE() | |
241 | ||
242 | wxPreviewControlBar::wxPreviewControlBar(wxPrintPreviewBase *preview, long buttons, | |
243 | wxWindow *parent, const wxPoint& pos, const wxSize& size, | |
244 | long style, const wxString& name): | |
245 | wxPanel(parent, -1, pos, size, style, name) | |
246 | { | |
247 | m_printPreview = preview; | |
248 | m_closeButton = (wxButton *) NULL; | |
249 | m_nextPageButton = (wxButton *) NULL; | |
250 | m_previousPageButton = (wxButton *) NULL; | |
251 | m_printButton = (wxButton *) NULL; | |
252 | m_zoomControl = (wxChoice *) NULL; | |
253 | m_buttonFlags = buttons; | |
254 | } | |
255 | ||
256 | wxPreviewControlBar::~wxPreviewControlBar() | |
257 | { | |
258 | } | |
259 | ||
260 | void wxPreviewControlBar::OnPaint(wxPaintEvent& WXUNUSED(event)) | |
261 | { | |
262 | wxPaintDC dc(this); | |
263 | ||
264 | int w, h; | |
265 | GetSize(&w, &h); | |
266 | dc.SetPen(*wxBLACK_PEN); | |
267 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
268 | dc.DrawLine( 0, h-1, w, h-1 ); | |
269 | } | |
270 | ||
271 | void wxPreviewControlBar::OnWindowClose(wxCommandEvent& WXUNUSED(event)) | |
272 | { | |
273 | wxPreviewFrame *frame = (wxPreviewFrame *)GetParent(); | |
274 | frame->Close(TRUE); | |
275 | } | |
276 | ||
277 | void wxPreviewControlBar::OnPrint(wxCommandEvent& WXUNUSED(event)) | |
278 | { | |
279 | wxPrintPreviewBase *preview = GetPrintPreview(); | |
280 | preview->Print(TRUE); | |
281 | } | |
282 | ||
283 | void wxPreviewControlBar::OnChar(wxKeyEvent &event) | |
284 | { | |
285 | switch(event.KeyCode()) | |
286 | { | |
287 | case WXK_NEXT: | |
288 | OnNext(); break; | |
289 | case WXK_PRIOR: | |
290 | OnPrevious(); break; | |
291 | default: | |
292 | event.Skip(); | |
293 | } | |
294 | } | |
295 | ||
296 | void wxPreviewControlBar::OnNext(void) | |
297 | { | |
298 | wxPrintPreviewBase *preview = GetPrintPreview(); | |
299 | if (preview) | |
300 | { | |
301 | int currentPage = preview->GetCurrentPage(); | |
302 | if ((preview->GetMaxPage() > 0) && | |
303 | (currentPage < preview->GetMaxPage()) && | |
304 | preview->GetPrintout()->HasPage(currentPage + 1)) | |
305 | { | |
306 | preview->SetCurrentPage(currentPage + 1); | |
307 | } | |
308 | } | |
309 | } | |
310 | ||
311 | void wxPreviewControlBar::OnPrevious(void) | |
312 | { | |
313 | wxPrintPreviewBase *preview = GetPrintPreview(); | |
314 | if (preview) | |
315 | { | |
316 | int currentPage = preview->GetCurrentPage(); | |
317 | if ((preview->GetMinPage() > 0) && | |
318 | (currentPage > preview->GetMinPage()) && | |
319 | preview->GetPrintout()->HasPage(currentPage - 1)) | |
320 | { | |
321 | preview->SetCurrentPage(currentPage - 1); | |
322 | } | |
323 | } | |
324 | } | |
325 | ||
326 | void wxPreviewControlBar::OnZoom(wxCommandEvent& WXUNUSED(event)) | |
327 | { | |
328 | int zoom = GetZoomControl(); | |
329 | if (GetPrintPreview()) | |
330 | GetPrintPreview()->SetZoom(zoom); | |
331 | } | |
332 | ||
333 | void wxPreviewControlBar::CreateButtons() | |
334 | { | |
335 | SetSize(0, 0, 400, 40); | |
336 | ||
337 | /* | |
338 | #ifdef __WXMSW__ | |
339 | int fontSize = 9; | |
340 | #else | |
341 | int fontSize = 10; | |
342 | #endif | |
343 | ||
344 | wxFont buttonFont(fontSize, wxSWISS, wxNORMAL, wxBOLD); | |
345 | SetFont(buttonFont); | |
346 | */ | |
347 | ||
348 | int buttonWidth = 65; | |
349 | #ifdef __WXGTK__ | |
350 | int buttonHeight = -1; | |
351 | #else | |
352 | int buttonHeight = 24; | |
353 | #endif | |
354 | ||
355 | int x = 5; | |
356 | int y = 5; | |
357 | ||
358 | #ifdef __WXMOTIF__ | |
359 | int gap = 15; | |
360 | #else | |
361 | int gap = 5; | |
362 | #endif | |
363 | ||
364 | m_closeButton = new wxButton(this, wxID_PREVIEW_CLOSE, _("Close"), | |
365 | wxPoint(x, y), wxSize(buttonWidth, buttonHeight)); | |
366 | ||
367 | x += gap + buttonWidth; | |
368 | ||
369 | if (m_buttonFlags & wxPREVIEW_PRINT) | |
370 | { | |
371 | m_printButton = new wxButton(this, wxID_PREVIEW_PRINT, _("Print..."), wxPoint(x, y), | |
372 | wxSize(buttonWidth, buttonHeight)); | |
373 | x += gap + buttonWidth; | |
374 | } | |
375 | ||
376 | if (m_buttonFlags & wxPREVIEW_PREVIOUS) | |
377 | { | |
378 | m_previousPageButton = new wxButton(this, wxID_PREVIEW_PREVIOUS, wxT("<<"), wxPoint(x, y), | |
379 | wxSize(buttonWidth, buttonHeight)); | |
380 | x += gap + buttonWidth; | |
381 | } | |
382 | ||
383 | if (m_buttonFlags & wxPREVIEW_NEXT) | |
384 | { | |
385 | m_nextPageButton = new wxButton(this, wxID_PREVIEW_NEXT, wxT(">>"), | |
386 | wxPoint(x, y), wxSize(buttonWidth, buttonHeight)); | |
387 | x += gap + buttonWidth; | |
388 | } | |
389 | ||
390 | if (m_buttonFlags & wxPREVIEW_ZOOM) | |
391 | { | |
392 | static const char *choices[] = | |
393 | { | |
394 | "10%", "15%", "20%", "25%", "30%", "35%", "40%", "45%", "50%", "55%", | |
395 | "60%", "65%", "70%", "75%", "80%", "85%", "90%", "95%", "100%", "110%", | |
396 | "120%", "150%", "200%" | |
397 | }; | |
398 | ||
399 | int n = WXSIZEOF(choices); | |
400 | ||
401 | wxString* strings = new wxString[n]; | |
402 | int i; | |
403 | for (i = 0; i < n; i++ ) | |
404 | strings[i] = choices[i]; | |
405 | ||
406 | m_zoomControl = new wxChoice(this, wxID_PREVIEW_ZOOM, | |
407 | wxPoint(x, y), | |
408 | wxSize(100, -1), | |
409 | n, | |
410 | strings | |
411 | ); | |
412 | delete[] strings; | |
413 | ||
414 | SetZoomControl(m_printPreview->GetZoom()); | |
415 | } | |
416 | ||
417 | // m_closeButton->SetDefault(); | |
418 | } | |
419 | ||
420 | void wxPreviewControlBar::SetZoomControl(int zoom) | |
421 | { | |
422 | char buf[20]; | |
423 | sprintf(buf, "%d%%", zoom); | |
424 | // Someone is calling methods that do no exist in wxChoice!! So I'll just comment out for VA for now | |
425 | if (m_zoomControl) | |
426 | m_zoomControl->SetStringSelection(buf); | |
427 | } | |
428 | ||
429 | int wxPreviewControlBar::GetZoomControl() | |
430 | { | |
431 | wxChar buf[20]; | |
432 | if (m_zoomControl && (m_zoomControl->GetStringSelection() != wxT(""))) | |
433 | { | |
434 | wxStrcpy(buf, m_zoomControl->GetStringSelection()); | |
435 | buf[wxStrlen(buf) - 1] = 0; | |
436 | return (int)wxAtoi(buf); | |
437 | } | |
438 | else return 0; | |
439 | } | |
440 | ||
441 | ||
442 | /* | |
443 | * Preview frame | |
444 | */ | |
445 | ||
446 | BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame) | |
447 | EVT_CLOSE(wxPreviewFrame::OnCloseWindow) | |
448 | END_EVENT_TABLE() | |
449 | ||
450 | wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxFrame *parent, const wxString& title, | |
451 | const wxPoint& pos, const wxSize& size, long style, const wxString& name): | |
452 | wxFrame(parent, -1, title, pos, size, style, name) | |
453 | { | |
454 | m_printPreview = preview; | |
455 | m_controlBar = NULL; | |
456 | m_previewCanvas = NULL; | |
457 | } | |
458 | ||
459 | wxPreviewFrame::~wxPreviewFrame() | |
460 | { | |
461 | } | |
462 | ||
463 | void wxPreviewFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event)) | |
464 | { | |
465 | MakeModal(FALSE); | |
466 | ||
467 | // Need to delete the printout and the print preview | |
468 | wxPrintout *printout = m_printPreview->GetPrintout(); | |
469 | if (printout) | |
470 | { | |
471 | delete printout; | |
472 | m_printPreview->SetPrintout(NULL); | |
473 | m_printPreview->SetCanvas(NULL); | |
474 | m_printPreview->SetFrame(NULL); | |
475 | } | |
476 | delete m_printPreview; | |
477 | ||
478 | Destroy(); | |
479 | } | |
480 | ||
481 | void wxPreviewFrame::Initialize() | |
482 | { | |
483 | CreateStatusBar(); | |
484 | ||
485 | CreateCanvas(); | |
486 | CreateControlBar(); | |
487 | ||
488 | m_printPreview->SetCanvas(m_previewCanvas); | |
489 | m_printPreview->SetFrame(this); | |
490 | ||
491 | // Set layout constraints here | |
492 | ||
493 | // Control bar constraints | |
494 | wxLayoutConstraints *c1 = new wxLayoutConstraints; | |
495 | // int w, h; | |
496 | // m_controlBar->GetSize(&w, &h); | |
497 | int h; | |
498 | #if (defined(__WXMSW__) || defined(__WXGTK__)) | |
499 | h = 40; | |
500 | #else | |
501 | h = 60; | |
502 | #endif | |
503 | ||
504 | c1->left.SameAs (this, wxLeft); | |
505 | c1->top.SameAs (this, wxTop); | |
506 | c1->right.SameAs (this, wxRight); | |
507 | c1->height.Absolute (h); | |
508 | ||
509 | m_controlBar->SetConstraints(c1); | |
510 | ||
511 | // Canvas constraints | |
512 | wxLayoutConstraints *c2 = new wxLayoutConstraints; | |
513 | ||
514 | c2->left.SameAs (this, wxLeft); | |
515 | c2->top.Below (m_controlBar); | |
516 | c2->right.SameAs (this, wxRight); | |
517 | c2->bottom.SameAs (this, wxBottom); | |
518 | ||
519 | m_previewCanvas->SetConstraints(c2); | |
520 | ||
521 | SetAutoLayout(TRUE); | |
522 | ||
523 | MakeModal(TRUE); | |
524 | ||
525 | Layout(); | |
526 | } | |
527 | ||
528 | void wxPreviewFrame::CreateCanvas() | |
529 | { | |
530 | m_previewCanvas = new wxPreviewCanvas(m_printPreview, this); | |
531 | } | |
532 | ||
533 | void wxPreviewFrame::CreateControlBar() | |
534 | { | |
535 | long buttons = wxPREVIEW_DEFAULT; | |
536 | if (m_printPreview->GetPrintoutForPrinting()) | |
537 | buttons |= wxPREVIEW_PRINT; | |
538 | ||
539 | m_controlBar = new wxPreviewControlBar(m_printPreview, buttons, this, wxPoint(0, 0), wxSize(400, 40)); | |
540 | m_controlBar->CreateButtons(); | |
541 | } | |
542 | ||
543 | /* | |
544 | * Print preview | |
545 | */ | |
546 | ||
547 | wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout, | |
548 | wxPrintout *printoutForPrinting, | |
549 | wxPrintData *data) | |
550 | { | |
551 | if (data) | |
552 | m_printDialogData = (*data); | |
553 | ||
554 | Init(printout, printoutForPrinting); | |
555 | } | |
556 | ||
557 | wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout, | |
558 | wxPrintout *printoutForPrinting, | |
559 | wxPrintDialogData *data) | |
560 | { | |
561 | if (data) | |
562 | m_printDialogData = (*data); | |
563 | ||
564 | Init(printout, printoutForPrinting); | |
565 | } | |
566 | ||
567 | void wxPrintPreviewBase::Init(wxPrintout *printout, | |
568 | wxPrintout *printoutForPrinting) | |
569 | { | |
570 | m_isOk = TRUE; | |
571 | m_previewPrintout = printout; | |
572 | if (m_previewPrintout) | |
573 | m_previewPrintout->SetIsPreview(TRUE); | |
574 | ||
575 | m_printPrintout = printoutForPrinting; | |
576 | ||
577 | m_previewCanvas = NULL; | |
578 | m_previewFrame = NULL; | |
579 | m_previewBitmap = NULL; | |
580 | m_currentPage = 1; | |
581 | m_currentZoom = 70; | |
582 | m_topMargin = 40; | |
583 | m_leftMargin = 40; | |
584 | m_pageWidth = 0; | |
585 | m_pageHeight = 0; | |
586 | m_printingPrepared = FALSE; | |
587 | ||
588 | // Too soon! Moved to RenderPage. | |
589 | // printout->OnPreparePrinting(); | |
590 | ||
591 | // Get some parameters from the printout, if defined | |
592 | int selFrom, selTo; | |
593 | printout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo); | |
594 | } | |
595 | ||
596 | wxPrintPreviewBase::~wxPrintPreviewBase() | |
597 | { | |
598 | if (m_previewPrintout) | |
599 | delete m_previewPrintout; | |
600 | if (m_previewBitmap) | |
601 | delete m_previewBitmap; | |
602 | if (m_printPrintout) | |
603 | delete m_printPrintout; | |
604 | } | |
605 | ||
606 | bool wxPrintPreviewBase::SetCurrentPage(int pageNum) | |
607 | { | |
608 | if (m_currentPage == pageNum) | |
609 | return TRUE; | |
610 | ||
611 | m_currentPage = pageNum; | |
612 | if (m_previewBitmap) | |
613 | { | |
614 | delete m_previewBitmap; | |
615 | m_previewBitmap = NULL; | |
616 | } | |
617 | ||
618 | if (m_previewCanvas) | |
619 | { | |
620 | if (!RenderPage(pageNum)) | |
621 | return FALSE; | |
622 | m_previewCanvas->Refresh(); | |
623 | } | |
624 | return TRUE; | |
625 | } | |
626 | ||
627 | bool wxPrintPreviewBase::PaintPage(wxWindow *canvas, wxDC& dc) | |
628 | { | |
629 | DrawBlankPage(canvas, dc); | |
630 | ||
631 | if (!m_previewBitmap) | |
632 | if (!RenderPage(m_currentPage)) | |
633 | return FALSE; | |
634 | ||
635 | if (!m_previewBitmap) | |
636 | return FALSE; | |
637 | ||
638 | if (!canvas) | |
639 | return FALSE; | |
640 | ||
641 | int canvasWidth, canvasHeight; | |
642 | canvas->GetSize(&canvasWidth, &canvasHeight); | |
643 | ||
644 | double zoomScale = ((float)m_currentZoom/(float)100); | |
645 | double actualWidth = (zoomScale*m_pageWidth*m_previewScale); | |
646 | // float actualHeight = (float)(zoomScale*m_pageHeight*m_previewScale); | |
647 | ||
648 | int x = (int) ((canvasWidth - actualWidth)/2.0); | |
649 | if (x < m_leftMargin) | |
650 | x = m_leftMargin; | |
651 | int y = m_topMargin; | |
652 | ||
653 | wxMemoryDC temp_dc; | |
654 | temp_dc.SelectObject(*m_previewBitmap); | |
655 | ||
656 | dc.Blit(x, y, m_previewBitmap->GetWidth(), m_previewBitmap->GetHeight(), &temp_dc, 0, 0); | |
657 | ||
658 | temp_dc.SelectObject(wxNullBitmap); | |
659 | ||
660 | return TRUE; | |
661 | } | |
662 | ||
663 | bool wxPrintPreviewBase::RenderPage(int pageNum) | |
664 | { | |
665 | wxBusyCursor busy; | |
666 | ||
667 | int canvasWidth, canvasHeight; | |
668 | ||
669 | if (!m_previewCanvas) | |
670 | { | |
671 | wxFAIL_MSG(_T("wxPrintPreviewBase::RenderPage: must use wxPrintPreviewBase::SetCanvas to let me know about the canvas!")); | |
672 | ||
673 | return FALSE; | |
674 | } | |
675 | m_previewCanvas->GetSize(&canvasWidth, &canvasHeight); | |
676 | ||
677 | double zoomScale = (m_currentZoom/100.0); | |
678 | int actualWidth = (int)(zoomScale*m_pageWidth*m_previewScale); | |
679 | int actualHeight = (int)(zoomScale*m_pageHeight*m_previewScale); | |
680 | ||
681 | int x = (int)((canvasWidth - actualWidth)/2.0); | |
682 | if (x < m_leftMargin) | |
683 | x = m_leftMargin; | |
684 | // int y = m_topMargin; | |
685 | ||
686 | ||
687 | if (!m_previewBitmap) | |
688 | { | |
689 | m_previewBitmap = new wxBitmap((int)actualWidth, (int)actualHeight); | |
690 | if (!m_previewBitmap || !m_previewBitmap->Ok()) | |
691 | { | |
692 | if (m_previewBitmap) { | |
693 | delete m_previewBitmap; | |
694 | m_previewBitmap = NULL; | |
695 | } | |
696 | wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK); | |
697 | return FALSE; | |
698 | } | |
699 | } | |
700 | ||
701 | wxMemoryDC memoryDC; | |
702 | memoryDC.SelectObject(*m_previewBitmap); | |
703 | ||
704 | memoryDC.Clear(); | |
705 | ||
706 | m_previewPrintout->SetDC(&memoryDC); | |
707 | m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight); | |
708 | ||
709 | // Need to delay OnPreparePrinting until here, so we have enough information. | |
710 | if (!m_printingPrepared) | |
711 | { | |
712 | m_previewPrintout->OnPreparePrinting(); | |
713 | m_printingPrepared = TRUE; | |
714 | } | |
715 | ||
716 | m_previewPrintout->OnBeginPrinting(); | |
717 | ||
718 | if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage())) | |
719 | { | |
720 | wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK); | |
721 | ||
722 | memoryDC.SelectObject(wxNullBitmap); | |
723 | ||
724 | delete m_previewBitmap; | |
725 | m_previewBitmap = NULL; | |
726 | return FALSE; | |
727 | } | |
728 | ||
729 | m_previewPrintout->OnPrintPage(pageNum); | |
730 | m_previewPrintout->OnEndDocument(); | |
731 | m_previewPrintout->OnEndPrinting(); | |
732 | ||
733 | m_previewPrintout->SetDC(NULL); | |
734 | ||
735 | memoryDC.SelectObject(wxNullBitmap); | |
736 | ||
737 | wxChar buf[200]; | |
738 | if (m_maxPage != 0) | |
739 | wxSprintf(buf, _("Page %d of %d"), pageNum, m_maxPage); | |
740 | else | |
741 | wxSprintf(buf, _("Page %d"), pageNum); | |
742 | ||
743 | if (m_previewFrame) | |
744 | m_previewFrame->SetStatusText(buf); | |
745 | ||
746 | return TRUE; | |
747 | } | |
748 | ||
749 | ||
750 | bool wxPrintPreviewBase::DrawBlankPage(wxWindow *canvas, wxDC& dc) | |
751 | { | |
752 | int canvasWidth, canvasHeight; | |
753 | canvas->GetSize(&canvasWidth, &canvasHeight); | |
754 | ||
755 | float zoomScale = (float)((float)m_currentZoom/(float)100); | |
756 | float actualWidth = zoomScale*m_pageWidth*m_previewScale; | |
757 | float actualHeight = zoomScale*m_pageHeight*m_previewScale; | |
758 | ||
759 | float x = (float)((canvasWidth - actualWidth)/2.0); | |
760 | if (x < m_leftMargin) | |
761 | x = (float)m_leftMargin; | |
762 | float y = (float)m_topMargin; | |
763 | ||
764 | // Draw shadow, allowing for 1-pixel border AROUND the actual page | |
765 | int shadowOffset = 4; | |
766 | dc.SetPen(*wxBLACK_PEN); | |
767 | dc.SetBrush(*wxBLACK_BRUSH); | |
768 | /* | |
769 | dc.DrawRectangle((int)(x-1 + shadowOffset), (int)(y-1 + shadowOffset), (int)(actualWidth+2), (int)(actualHeight+2)); | |
770 | */ | |
771 | dc.DrawRectangle((int)(x + shadowOffset), (int)(y + actualHeight+1), (int)(actualWidth), shadowOffset); | |
772 | dc.DrawRectangle((int)(x + actualWidth), (int)(y + shadowOffset), shadowOffset, (int)(actualHeight)); | |
773 | ||
774 | // Draw blank page allowing for 1-pixel border AROUND the actual page | |
775 | dc.SetPen(*wxBLACK_PEN); | |
776 | dc.SetBrush(*wxWHITE_BRUSH); | |
777 | ||
778 | /* | |
779 | wxRegion update_region = canvas->GetUpdateRegion(); | |
780 | wxRect r = update_region.GetBox(); | |
781 | ||
782 | printf( "x: %d y: %d w: %d h: %d.\n", (int)r.x, (int)r.y, (int)r.width, (int)r.height ); | |
783 | */ | |
784 | ||
785 | dc.DrawRectangle((int)(x-2), (int)(y-1), (int)(actualWidth+3), (int)(actualHeight+2)); | |
786 | ||
787 | return TRUE; | |
788 | } | |
789 | ||
790 | void wxPrintPreviewBase::SetZoom(int percent) | |
791 | { | |
792 | if (m_currentZoom == percent) | |
793 | return; | |
794 | ||
795 | m_currentZoom = percent; | |
796 | if (m_previewBitmap) | |
797 | { | |
798 | delete m_previewBitmap; | |
799 | m_previewBitmap = NULL; | |
800 | } | |
801 | ||
802 | if (m_previewCanvas) | |
803 | { | |
804 | RenderPage(m_currentPage); | |
805 | ((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0); | |
806 | m_previewCanvas->Clear(); | |
807 | m_previewCanvas->Refresh(); | |
808 | } | |
809 | } | |
810 | ||
811 | #endif // wxUSE_PRINTING_ARCHITECTURE |