-
Notifications
You must be signed in to change notification settings - Fork 2
/
print.c
1270 lines (1068 loc) · 38.5 KB
/
print.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Wordpad implementation - Printing and print preview functions
*
* Copyright 2007-2008 by Alexander N. Sørnes <alex@thehandofagony.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <windef.h>
#include <winbase.h>
#include <winreg.h>
#include <wingdi.h>
#include <winuser.h>
#include <richedit.h>
#include <commctrl.h>
#include <commdlg.h>
#include "wordpad.h"
typedef struct _previewinfo
{
int page;
int pages_shown;
int saved_pages_shown;
int *pageEnds, pageCapacity;
int textlength;
HDC hdc;
HDC hdc2;
RECT window;
RECT rcPage;
SIZE bmSize;
SIZE bmScaledSize;
SIZE spacing;
float zoomratio;
int zoomlevel;
LPWSTR wszFileName;
} previewinfo, *ppreviewinfo;
static HGLOBAL devMode;
static HGLOBAL devNames;
static RECT margins;
static previewinfo preview;
extern const WCHAR wszPreviewWndClass[];
static const WCHAR var_pagemargin[] = {'P','a','g','e','M','a','r','g','i','n',0};
static const WCHAR var_previewpages[] = {'P','r','e','v','i','e','w','P','a','g','e','s',0};
static LPWSTR get_print_file_filter(HWND hMainWnd)
{
static WCHAR wszPrintFilter[MAX_STRING_LEN*2+6+4+1];
const WCHAR files_prn[] = {'*','.','P','R','N',0};
const WCHAR files_all[] = {'*','.','*','\0'};
LPWSTR p;
HINSTANCE hInstance = GetModuleHandleW(0);
p = wszPrintFilter;
LoadStringW(hInstance, STRING_PRINTER_FILES_PRN, p, MAX_STRING_LEN);
p += lstrlenW(p) + 1;
lstrcpyW(p, files_prn);
p += lstrlenW(p) + 1;
LoadStringW(hInstance, STRING_ALL_FILES, p, MAX_STRING_LEN);
p += lstrlenW(p) + 1;
lstrcpyW(p, files_all);
p += lstrlenW(p) + 1;
*p = 0;
return wszPrintFilter;
}
void registry_set_pagemargins(HKEY hKey)
{
RegSetValueExW(hKey, var_pagemargin, 0, REG_BINARY, (LPBYTE)&margins, sizeof(RECT));
}
void registry_read_pagemargins(HKEY hKey)
{
DWORD size = sizeof(RECT);
if(!hKey || RegQueryValueExW(hKey, var_pagemargin, 0, NULL, (LPBYTE)&margins,
&size) != ERROR_SUCCESS || size != sizeof(RECT))
SetRect(&margins, 1757, 1417, 1757, 1417);
}
void registry_set_previewpages(HKEY hKey)
{
RegSetValueExW(hKey, var_previewpages, 0, REG_DWORD,
(LPBYTE)&preview.pages_shown, sizeof(DWORD));
}
void registry_read_previewpages(HKEY hKey)
{
DWORD size = sizeof(DWORD);
if(!hKey ||
RegQueryValueExW(hKey, var_previewpages, 0, NULL,
(LPBYTE)&preview.pages_shown, &size) != ERROR_SUCCESS ||
size != sizeof(DWORD))
{
preview.pages_shown = 1;
} else {
if (preview.pages_shown < 1) preview.pages_shown = 1;
else if (preview.pages_shown > 2) preview.pages_shown = 2;
}
}
static void AddTextButton(HWND hRebarWnd, UINT string, UINT command, UINT id)
{
REBARBANDINFOW rb;
HINSTANCE hInstance = GetModuleHandleW(0);
WCHAR text[MAX_STRING_LEN];
HWND hButton;
LoadStringW(hInstance, string, text, MAX_STRING_LEN);
hButton = CreateWindowW(WC_BUTTONW, text,
WS_VISIBLE | WS_CHILD, 5, 5, 100, 15,
hRebarWnd, ULongToHandle(command), hInstance, NULL);
rb.cbSize = REBARBANDINFOW_V6_SIZE;
rb.fMask = RBBIM_SIZE | RBBIM_CHILDSIZE | RBBIM_STYLE | RBBIM_CHILD | RBBIM_IDEALSIZE | RBBIM_ID;
rb.fStyle = RBBS_NOGRIPPER | RBBS_VARIABLEHEIGHT;
rb.hwndChild = hButton;
rb.cyChild = rb.cyMinChild = 22;
rb.cx = rb.cxMinChild = 90;
rb.cxIdeal = 100;
rb.wID = id;
SendMessageW(hRebarWnd, RB_INSERTBANDW, -1, (LPARAM)&rb);
}
static HDC make_dc(void)
{
if(devNames && devMode)
{
LPDEVNAMES dn = GlobalLock(devNames);
LPDEVMODEW dm = GlobalLock(devMode);
HDC ret;
ret = CreateDCW((LPWSTR)dn + dn->wDriverOffset,
(LPWSTR)dn + dn->wDeviceOffset, 0, dm);
GlobalUnlock(dn);
GlobalUnlock(dm);
return ret;
} else
{
return 0;
}
}
static LONG twips_to_centmm(int twips)
{
return MulDiv(twips, CENTMM_PER_INCH, TWIPS_PER_INCH);
}
static LONG centmm_to_twips(int mm)
{
return MulDiv(mm, TWIPS_PER_INCH, CENTMM_PER_INCH);
}
static LONG twips_to_pixels(int twips, int dpi)
{
return MulDiv(twips, dpi, TWIPS_PER_INCH);
}
static LONG devunits_to_twips(int units, int dpi)
{
return MulDiv(units, TWIPS_PER_INCH, dpi);
}
static RECT get_print_rect(HDC hdc)
{
RECT rc;
int width, height;
if(hdc)
{
int dpiY = GetDeviceCaps(hdc, LOGPIXELSY);
int dpiX = GetDeviceCaps(hdc, LOGPIXELSX);
width = devunits_to_twips(GetDeviceCaps(hdc, PHYSICALWIDTH), dpiX);
height = devunits_to_twips(GetDeviceCaps(hdc, PHYSICALHEIGHT), dpiY);
} else
{
width = centmm_to_twips(18500);
height = centmm_to_twips(27000);
}
SetRect(&rc, margins.left, margins.top, width - margins.right, height - margins.bottom);
return rc;
}
void target_device(HWND hMainWnd, DWORD wordWrap)
{
HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
if(wordWrap == ID_WORDWRAP_MARGIN)
{
int width = 0;
LRESULT result;
HDC hdc = make_dc();
RECT rc = get_print_rect(hdc);
width = rc.right - rc.left;
if(!hdc)
{
HDC hMaindc = GetDC(hMainWnd);
hdc = CreateCompatibleDC(hMaindc);
ReleaseDC(hMainWnd, hMaindc);
}
result = SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, (WPARAM)hdc, width);
DeleteDC(hdc);
if (result)
return;
/* otherwise EM_SETTARGETDEVICE failed, so fall back on wrapping
* to window using the NULL DC. */
}
if (wordWrap != ID_WORDWRAP_NONE) {
SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, 0, 0);
} else {
SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, 0, 1);
}
}
static LPWSTR dialog_print_to_file(HWND hMainWnd)
{
OPENFILENAMEW ofn;
static WCHAR file[MAX_PATH] = {'O','U','T','P','U','T','.','P','R','N',0};
static const WCHAR defExt[] = {'P','R','N',0};
static LPWSTR file_filter;
if(!file_filter)
file_filter = get_print_file_filter(hMainWnd);
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.Flags = OFN_EXPLORER | OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
ofn.hwndOwner = hMainWnd;
ofn.lpstrFilter = file_filter;
ofn.lpstrFile = file;
ofn.nMaxFile = MAX_PATH;
ofn.lpstrDefExt = defExt;
if(GetSaveFileNameW(&ofn))
return file;
else
return FALSE;
}
static void char_from_pagenum(HWND hEditorWnd, FORMATRANGE *fr, int page)
{
int i;
fr->chrg.cpMin = 0;
for(i = 1; i < page; i++)
{
int bottom = fr->rc.bottom;
fr->chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, (LPARAM)fr);
fr->rc.bottom = bottom;
}
}
static HWND get_ruler_wnd(HWND hMainWnd)
{
return GetDlgItem(GetDlgItem(hMainWnd, IDC_REBAR), IDC_RULER);
}
void redraw_ruler(HWND hRulerWnd)
{
RECT rc;
GetClientRect(hRulerWnd, &rc);
InvalidateRect(hRulerWnd, &rc, TRUE);
}
static void update_ruler(HWND hRulerWnd)
{
SendMessageW(hRulerWnd, WM_USER, 0, 0);
redraw_ruler(hRulerWnd);
}
static void add_ruler_units(HDC hdcRuler, RECT* drawRect, BOOL NewMetrics, LONG EditLeftmost)
{
static HDC hdc;
if(NewMetrics)
{
static HBITMAP hBitmap;
int i, x, y, RulerTextEnd;
int CmPixels;
int QuarterCmPixels;
HFONT hFont;
WCHAR FontName[] = {'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0};
if(hdc)
{
DeleteDC(hdc);
DeleteObject(hBitmap);
}
hdc = CreateCompatibleDC(0);
CmPixels = twips_to_pixels(centmm_to_twips(1000), GetDeviceCaps(hdc, LOGPIXELSX));
QuarterCmPixels = (int)((float)CmPixels / 4.0);
hBitmap = CreateCompatibleBitmap(hdc, drawRect->right, drawRect->bottom);
SelectObject(hdc, hBitmap);
FillRect(hdc, drawRect, GetStockObject(WHITE_BRUSH));
hFont = CreateFontW(10, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, FontName);
SelectObject(hdc, hFont);
SetBkMode(hdc, TRANSPARENT);
SetTextAlign(hdc, TA_CENTER);
y = (int)(((float)drawRect->bottom - (float)drawRect->top) / 2.0) + 1;
RulerTextEnd = drawRect->right - EditLeftmost + 1;
for(i = 1, x = EditLeftmost; x < (drawRect->right - EditLeftmost + 1); i ++)
{
WCHAR str[3];
WCHAR format[] = {'%','d',0};
int x2 = x;
x2 += QuarterCmPixels;
if(x2 > RulerTextEnd)
break;
MoveToEx(hdc, x2, y, NULL);
LineTo(hdc, x2, y+2);
x2 += QuarterCmPixels;
if(x2 > RulerTextEnd)
break;
MoveToEx(hdc, x2, y - 3, NULL);
LineTo(hdc, x2, y + 3);
x2 += QuarterCmPixels;
if(x2 > RulerTextEnd)
break;
MoveToEx(hdc, x2, y, NULL);
LineTo(hdc, x2, y+2);
x += CmPixels;
if(x > RulerTextEnd)
break;
wsprintfW(str, format, i);
TextOutW(hdc, x, 5, str, lstrlenW(str));
}
DeleteObject(hFont);
}
BitBlt(hdcRuler, 0, 0, drawRect->right, drawRect->bottom, hdc, 0, 0, SRCAND);
}
static void paint_ruler(HWND hWnd, LONG EditLeftmost, BOOL NewMetrics)
{
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hWnd, &ps);
HDC hdcPrint = make_dc();
RECT printRect = get_print_rect(hdcPrint);
RECT drawRect;
GetClientRect(hWnd, &drawRect);
FillRect(hdc, &drawRect, GetSysColorBrush(COLOR_MENU));
InflateRect(&drawRect, 0, -3);
drawRect.left = EditLeftmost;
drawRect.right = twips_to_pixels(printRect.right - margins.left, GetDeviceCaps(hdc, LOGPIXELSX));
FillRect(hdc, &drawRect, GetStockObject(WHITE_BRUSH));
drawRect.top--;
drawRect.bottom++;
DrawEdge(hdc, &drawRect, EDGE_SUNKEN, BF_RECT);
drawRect.left = drawRect.right - 1;
drawRect.right = twips_to_pixels(printRect.right + margins.right - margins.left, GetDeviceCaps(hdc, LOGPIXELSX));
DrawEdge(hdc, &drawRect, EDGE_ETCHED, BF_RECT);
drawRect.left = 0;
drawRect.top = 0;
add_ruler_units(hdc, &drawRect, NewMetrics, EditLeftmost);
SelectObject(hdc, GetStockObject(BLACK_BRUSH));
DeleteDC(hdcPrint);
EndPaint(hWnd, &ps);
}
LRESULT CALLBACK ruler_proc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static WNDPROC pPrevRulerProc;
static LONG EditLeftmost;
static BOOL NewMetrics;
switch(msg)
{
case WM_USER:
if(wParam)
{
EditLeftmost = ((POINTL*)wParam)->x;
pPrevRulerProc = (WNDPROC)lParam;
}
NewMetrics = TRUE;
break;
case WM_PAINT:
paint_ruler(hWnd, EditLeftmost, NewMetrics);
break;
default:
return CallWindowProcW(pPrevRulerProc, hWnd, msg, wParam, lParam);
}
return 0;
}
static void print(LPPRINTDLGW pd, LPWSTR wszFileName)
{
FORMATRANGE fr;
DOCINFOW di;
HWND hEditorWnd = GetDlgItem(pd->hwndOwner, IDC_EDITOR);
int printedPages = 0;
fr.hdc = pd->hDC;
fr.hdcTarget = pd->hDC;
fr.rc = get_print_rect(fr.hdc);
SetRect(&fr.rcPage, 0, 0, fr.rc.right + margins.right, fr.rc.bottom + margins.bottom);
ZeroMemory(&di, sizeof(di));
di.cbSize = sizeof(di);
di.lpszDocName = wszFileName;
if(pd->Flags & PD_PRINTTOFILE)
{
di.lpszOutput = dialog_print_to_file(pd->hwndOwner);
if(!di.lpszOutput)
return;
}
if(pd->Flags & PD_SELECTION)
{
SendMessageW(hEditorWnd, EM_EXGETSEL, 0, (LPARAM)&fr.chrg);
} else
{
GETTEXTLENGTHEX gt;
gt.flags = GTL_DEFAULT;
gt.codepage = 1200;
fr.chrg.cpMin = 0;
fr.chrg.cpMax = SendMessageW(hEditorWnd, EM_GETTEXTLENGTHEX, (WPARAM)>, 0);
if(pd->Flags & PD_PAGENUMS)
char_from_pagenum(hEditorWnd, &fr, pd->nToPage);
}
StartDocW(fr.hdc, &di);
do
{
if(StartPage(fr.hdc) <= 0)
break;
fr.chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, TRUE, (LPARAM)&fr);
if(EndPage(fr.hdc) <= 0)
break;
printedPages++;
if((pd->Flags & PD_PAGENUMS) && (printedPages > (pd->nToPage - pd->nFromPage)))
break;
}
while(fr.chrg.cpMin && fr.chrg.cpMin < fr.chrg.cpMax);
EndDoc(fr.hdc);
SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, 0);
}
void dialog_printsetup(HWND hMainWnd)
{
PAGESETUPDLGW ps;
ZeroMemory(&ps, sizeof(ps));
ps.lStructSize = sizeof(ps);
ps.hwndOwner = hMainWnd;
ps.Flags = PSD_INHUNDREDTHSOFMILLIMETERS | PSD_MARGINS;
SetRect(&ps.rtMargin, twips_to_centmm(margins.left), twips_to_centmm(margins.top),
twips_to_centmm(margins.right), twips_to_centmm(margins.bottom));
ps.hDevMode = devMode;
ps.hDevNames = devNames;
if(PageSetupDlgW(&ps))
{
SetRect(&margins, centmm_to_twips(ps.rtMargin.left), centmm_to_twips(ps.rtMargin.top),
centmm_to_twips(ps.rtMargin.right), centmm_to_twips(ps.rtMargin.bottom));
devMode = ps.hDevMode;
devNames = ps.hDevNames;
update_ruler(get_ruler_wnd(hMainWnd));
}
}
void get_default_printer_opts(void)
{
PRINTDLGW pd;
ZeroMemory(&pd, sizeof(pd));
ZeroMemory(&pd, sizeof(pd));
pd.lStructSize = sizeof(pd);
pd.Flags = PD_RETURNDC | PD_RETURNDEFAULT;
pd.hDevMode = devMode;
PrintDlgW(&pd);
devMode = pd.hDevMode;
devNames = pd.hDevNames;
}
void print_quick(HWND hMainWnd, LPWSTR wszFileName)
{
PRINTDLGW pd;
ZeroMemory(&pd, sizeof(pd));
pd.hwndOwner = hMainWnd;
pd.hDC = make_dc();
print(&pd, wszFileName);
DeleteDC(pd.hDC);
}
void dialog_print(HWND hMainWnd, LPWSTR wszFileName)
{
PRINTDLGW pd;
HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
int from = 0;
int to = 0;
ZeroMemory(&pd, sizeof(pd));
pd.lStructSize = sizeof(pd);
pd.hwndOwner = hMainWnd;
pd.Flags = PD_RETURNDC | PD_USEDEVMODECOPIESANDCOLLATE;
pd.nMinPage = 1;
pd.nMaxPage = -1;
pd.hDevMode = devMode;
pd.hDevNames = devNames;
SendMessageW(hEditorWnd, EM_GETSEL, (WPARAM)&from, (LPARAM)&to);
if(from == to)
pd.Flags |= PD_NOSELECTION;
if(PrintDlgW(&pd))
{
devMode = pd.hDevMode;
devNames = pd.hDevNames;
print(&pd, wszFileName);
update_ruler(get_ruler_wnd(hMainWnd));
}
}
static void preview_bar_show(HWND hMainWnd, BOOL show)
{
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
int i;
if(show)
{
REBARBANDINFOW rb;
HWND hStatic;
UINT num_pages_string = preview.pages_shown > 1 ? STRING_PREVIEW_ONEPAGE :
STRING_PREVIEW_TWOPAGES;
AddTextButton(hReBar, STRING_PREVIEW_PRINT, ID_PRINT, BANDID_PREVIEW_BTN1);
AddTextButton(hReBar, STRING_PREVIEW_NEXTPAGE, ID_PREVIEW_NEXTPAGE, BANDID_PREVIEW_BTN2);
AddTextButton(hReBar, STRING_PREVIEW_PREVPAGE, ID_PREVIEW_PREVPAGE, BANDID_PREVIEW_BTN3);
AddTextButton(hReBar, num_pages_string, ID_PREVIEW_NUMPAGES, BANDID_PREVIEW_BTN4);
AddTextButton(hReBar, STRING_PREVIEW_ZOOMIN, ID_PREVIEW_ZOOMIN, BANDID_PREVIEW_BTN5);
AddTextButton(hReBar, STRING_PREVIEW_ZOOMOUT, ID_PREVIEW_ZOOMOUT, BANDID_PREVIEW_BTN6);
AddTextButton(hReBar, STRING_PREVIEW_CLOSE, ID_FILE_EXIT, BANDID_PREVIEW_BTN7);
hStatic = CreateWindowW(WC_STATICW, NULL,
WS_VISIBLE | WS_CHILD, 0, 0, 0, 0,
hReBar, NULL, NULL, NULL);
rb.cbSize = REBARBANDINFOW_V6_SIZE;
rb.fMask = RBBIM_SIZE | RBBIM_CHILDSIZE | RBBIM_STYLE | RBBIM_CHILD | RBBIM_IDEALSIZE | RBBIM_ID;
rb.fStyle = RBBS_NOGRIPPER | RBBS_VARIABLEHEIGHT;
rb.hwndChild = hStatic;
rb.cyChild = rb.cyMinChild = 22;
rb.cx = rb.cxMinChild = 90;
rb.cxIdeal = 100;
rb.wID = BANDID_PREVIEW_BUFFER;
SendMessageW(hReBar, RB_INSERTBANDW, -1, (LPARAM)&rb);
} else
{
for(i = 0; i <= PREVIEW_BUTTONS; i++)
SendMessageW(hReBar, RB_DELETEBAND, SendMessageW(hReBar, RB_IDTOINDEX, BANDID_PREVIEW_BTN1+i, 0), 0);
}
}
static const int min_spacing = 10;
static void update_preview_scrollbars(HWND hwndPreview, RECT *window)
{
SCROLLINFO sbi;
sbi.cbSize = sizeof(sbi);
sbi.fMask = SIF_PAGE|SIF_RANGE;
sbi.nMin = 0;
if (preview.zoomlevel == 0)
{
/* Hide scrollbars when zoomed out. */
sbi.nMax = 0;
sbi.nPage = window->right;
SetScrollInfo(hwndPreview, SB_HORZ, &sbi, TRUE);
sbi.nPage = window->bottom;
SetScrollInfo(hwndPreview, SB_VERT, &sbi, TRUE);
} else {
sbi.nMax = preview.bmScaledSize.cx * preview.pages_shown +
min_spacing * (preview.pages_shown + 1);
sbi.nPage = window->right;
SetScrollInfo(hwndPreview, SB_HORZ, &sbi, TRUE);
/* Change in the horizontal scrollbar visibility affects the
* client rect, so update the client rect. */
GetClientRect(hwndPreview, window);
sbi.nMax = preview.bmScaledSize.cy + min_spacing * 2;
sbi.nPage = window->bottom;
SetScrollInfo(hwndPreview, SB_VERT, &sbi, TRUE);
}
}
static void update_preview_sizes(HWND hwndPreview, BOOL zoomLevelUpdated)
{
RECT window;
GetClientRect(hwndPreview, &window);
/* The zoom ratio isn't updated for partial zoom because of resizing the window. */
if (zoomLevelUpdated || preview.zoomlevel != 1)
{
float ratio, ratioHeight, ratioWidth;
if (preview.zoomlevel == 2)
{
ratio = 1.0;
} else {
ratioHeight = (window.bottom - min_spacing * 2) / (float)preview.bmSize.cy;
ratioWidth = (float)(window.right -
min_spacing * (preview.pages_shown + 1)) /
(preview.pages_shown * preview.bmSize.cx);
if(ratioWidth > ratioHeight)
ratio = ratioHeight;
else
ratio = ratioWidth;
if (preview.zoomlevel == 1)
ratio += (1.0 - ratio) / 2;
}
preview.zoomratio = ratio;
}
preview.bmScaledSize.cx = preview.bmSize.cx * preview.zoomratio;
preview.bmScaledSize.cy = preview.bmSize.cy * preview.zoomratio;
preview.spacing.cy = max(min_spacing, (window.bottom - preview.bmScaledSize.cy) / 2);
preview.spacing.cx = (window.right -
preview.bmScaledSize.cx * preview.pages_shown) /
(preview.pages_shown + 1);
if (preview.spacing.cx < min_spacing)
preview.spacing.cx = min_spacing;
update_preview_scrollbars(hwndPreview, &window);
}
static void draw_margin_lines(HDC hdc, int x, int y, float ratio)
{
HPEN hPen, oldPen;
SIZE dpi;
RECT page_margin = preview.rcPage;
dpi.cx = GetDeviceCaps(hdc, LOGPIXELSX);
dpi.cy = GetDeviceCaps(hdc, LOGPIXELSY);
SetRect(&page_margin, preview.rcPage.left + margins.left, preview.rcPage.top + margins.top,
preview.rcPage.right - margins.right, preview.rcPage.bottom - margins.bottom);
page_margin.left = (int)((float)twips_to_pixels(page_margin.left, dpi.cx) * ratio);
page_margin.top = (int)((float)twips_to_pixels(page_margin.top, dpi.cy) * ratio);
page_margin.bottom = (int)((float)twips_to_pixels(page_margin.bottom, dpi.cy) * ratio);
page_margin.right = (int)((float)twips_to_pixels(page_margin.right, dpi.cx) * ratio);
OffsetRect(&page_margin, x, y);
hPen = CreatePen(PS_DOT, 1, RGB(0,0,0));
oldPen = SelectObject(hdc, hPen);
MoveToEx(hdc, x, page_margin.top, NULL);
LineTo(hdc, x + preview.bmScaledSize.cx, page_margin.top);
MoveToEx(hdc, x, page_margin.bottom, NULL);
LineTo(hdc, x + preview.bmScaledSize.cx, page_margin.bottom);
MoveToEx(hdc, page_margin.left, y, NULL);
LineTo(hdc, page_margin.left, y + preview.bmScaledSize.cy);
MoveToEx(hdc, page_margin.right, y, NULL);
LineTo(hdc, page_margin.right, y + preview.bmScaledSize.cy);
SelectObject(hdc, oldPen);
DeleteObject(hPen);
}
static BOOL is_last_preview_page(int page)
{
return preview.pageEnds[page - 1] >= preview.textlength;
}
void init_preview(HWND hMainWnd, LPWSTR wszFileName)
{
HINSTANCE hInstance = GetModuleHandleW(0);
preview.page = 1;
preview.hdc = 0;
preview.hdc2 = 0;
preview.wszFileName = wszFileName;
preview.zoomratio = 0;
preview.zoomlevel = 0;
preview_bar_show(hMainWnd, TRUE);
CreateWindowExW(0, wszPreviewWndClass, NULL,
WS_VISIBLE | WS_CHILD | WS_VSCROLL | WS_HSCROLL,
0, 0, 200, 10, hMainWnd, (HMENU)IDC_PREVIEW, hInstance, NULL);
}
void close_preview(HWND hMainWnd)
{
HWND hwndPreview = GetDlgItem(hMainWnd, IDC_PREVIEW);
preview.window.right = 0;
preview.window.bottom = 0;
preview.page = 0;
HeapFree(GetProcessHeap(), 0, preview.pageEnds);
preview.pageEnds = NULL;
preview.pageCapacity = 0;
if (preview.zoomlevel > 0)
preview.pages_shown = preview.saved_pages_shown;
if(preview.hdc) {
HBITMAP oldbm = GetCurrentObject(preview.hdc, OBJ_BITMAP);
DeleteDC(preview.hdc);
DeleteObject(oldbm);
preview.hdc = NULL;
}
if(preview.hdc2) {
HBITMAP oldbm = GetCurrentObject(preview.hdc2, OBJ_BITMAP);
DeleteDC(preview.hdc2);
DeleteObject(oldbm);
preview.hdc2 = NULL;
}
preview_bar_show(hMainWnd, FALSE);
DestroyWindow(hwndPreview);
}
BOOL preview_isactive(void)
{
return preview.page != 0;
}
static void draw_preview(HWND hEditorWnd, FORMATRANGE* lpFr, RECT* paper, int page)
{
int bottom;
if (!preview.pageEnds)
{
preview.pageCapacity = 32;
preview.pageEnds = HeapAlloc(GetProcessHeap(), 0,
sizeof(int) * preview.pageCapacity);
if (!preview.pageEnds) return;
} else if (page >= preview.pageCapacity) {
int *new_buffer;
new_buffer = HeapReAlloc(GetProcessHeap(), 0, preview.pageEnds,
sizeof(int) * preview.pageCapacity * 2);
if (!new_buffer) return;
preview.pageCapacity *= 2;
preview.pageEnds = new_buffer;
}
FillRect(lpFr->hdc, paper, GetStockObject(WHITE_BRUSH));
if (page > 1 && is_last_preview_page(page - 1)) return;
lpFr->chrg.cpMin = page <= 1 ? 0 : preview.pageEnds[page-2];
bottom = lpFr->rc.bottom;
preview.pageEnds[page-1] = SendMessageW(hEditorWnd, EM_FORMATRANGE, TRUE, (LPARAM)lpFr);
/* EM_FORMATRANGE sets fr.rc.bottom to indicate the area printed in,
* but we want to keep the original for drawing margins */
lpFr->rc.bottom = bottom;
SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, 0);
}
static void update_preview_buttons(HWND hMainWnd)
{
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_PREVPAGE), preview.page > 1);
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_NEXTPAGE),
!is_last_preview_page(preview.page) &&
!is_last_preview_page(preview.page + preview.pages_shown - 1));
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_NUMPAGES),
preview.pages_shown > 1 ||
(!is_last_preview_page(1) && preview.zoomlevel == 0));
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_ZOOMIN), preview.zoomlevel < 2);
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_ZOOMOUT), preview.zoomlevel > 0);
}
static LRESULT print_preview(HWND hwndPreview)
{
HPEN hPen, oldPen;
HDC hdc;
HRGN back_rgn, excl_rgn;
RECT window, background;
PAINTSTRUCT ps;
int x, y;
hdc = BeginPaint(hwndPreview, &ps);
GetClientRect(hwndPreview, &window);
back_rgn = CreateRectRgnIndirect(&window);
x = preview.spacing.cx - GetScrollPos(hwndPreview, SB_HORZ);
y = preview.spacing.cy - GetScrollPos(hwndPreview, SB_VERT);
/* draw page outlines */
hPen = CreatePen(PS_SOLID|PS_INSIDEFRAME, 2, RGB(0,0,0));
oldPen = SelectObject(hdc, hPen);
SetRect(&background, x - 2, y - 2, x + preview.bmScaledSize.cx + 2,
y + preview.bmScaledSize.cy + 2);
Rectangle(hdc, background.left, background.top,
background.right, background.bottom);
excl_rgn = CreateRectRgnIndirect(&background);
CombineRgn(back_rgn, back_rgn, excl_rgn, RGN_DIFF);
if(preview.pages_shown > 1)
{
background.left += preview.bmScaledSize.cx + preview.spacing.cx;
background.right += preview.bmScaledSize.cx + preview.spacing.cx;
Rectangle(hdc, background.left, background.top,
background.right, background.bottom);
SetRectRgn(excl_rgn, background.left, background.top,
background.right, background.bottom);
CombineRgn(back_rgn, back_rgn, excl_rgn, RGN_DIFF);
}
SelectObject(hdc, oldPen);
DeleteObject(hPen);
FillRgn(hdc, back_rgn, GetStockObject(GRAY_BRUSH));
DeleteObject(excl_rgn);
DeleteObject(back_rgn);
StretchBlt(hdc, x, y, preview.bmScaledSize.cx, preview.bmScaledSize.cy,
preview.hdc, 0, 0, preview.bmSize.cx, preview.bmSize.cy, SRCCOPY);
draw_margin_lines(hdc, x, y, preview.zoomratio);
if(preview.pages_shown > 1)
{
if (!is_last_preview_page(preview.page)) {
x += preview.spacing.cx + preview.bmScaledSize.cx;
StretchBlt(hdc, x, y,
preview.bmScaledSize.cx, preview.bmScaledSize.cy,
preview.hdc2, 0, 0,
preview.bmSize.cx, preview.bmSize.cy, SRCCOPY);
draw_margin_lines(hdc, x, y, preview.zoomratio);
} else {
InflateRect(&background, -2, -2);
FillRect(hdc, &background, GetStockObject(WHITE_BRUSH));
}
}
preview.window = window;
EndPaint(hwndPreview, &ps);
return 0;
}
static void update_preview_statusbar(HWND hMainWnd)
{
HWND hStatusbar = GetDlgItem(hMainWnd, IDC_STATUSBAR);
HINSTANCE hInst = GetModuleHandleW(0);
WCHAR *p;
WCHAR wstr[MAX_STRING_LEN];
p = wstr;
if (preview.pages_shown < 2 || is_last_preview_page(preview.page))
{
static const WCHAR fmt[] = {' ','%','d','\0'};
p += LoadStringW(hInst, STRING_PREVIEW_PAGE, wstr, MAX_STRING_LEN);
wsprintfW(p, fmt, preview.page);
} else {
static const WCHAR fmt[] = {' ','%','d','-','%','d','\0'};
p += LoadStringW(hInst, STRING_PREVIEW_PAGES, wstr, MAX_STRING_LEN);
wsprintfW(p, fmt, preview.page, preview.page + 1);
}
SetWindowTextW(hStatusbar, wstr);
}
/* Update for page changes. */
static void update_preview(HWND hMainWnd)
{
RECT paper;
HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
HWND hwndPreview = GetDlgItem(hMainWnd, IDC_PREVIEW);
HBITMAP hBitmapCapture;
FORMATRANGE fr;
HDC hdc = GetDC(hwndPreview);
fr.hdcTarget = make_dc();
fr.rc = fr.rcPage = preview.rcPage;
fr.rc.left += margins.left;
fr.rc.top += margins.top;
fr.rc.bottom -= margins.bottom;
fr.rc.right -= margins.right;
fr.chrg.cpMin = 0;
fr.chrg.cpMax = preview.textlength;
SetRect(&paper, 0, 0, preview.bmSize.cx, preview.bmSize.cy);
if (!preview.hdc) {
preview.hdc = CreateCompatibleDC(hdc);
hBitmapCapture = CreateCompatibleBitmap(hdc, preview.bmSize.cx, preview.bmSize.cy);
SelectObject(preview.hdc, hBitmapCapture);
}
fr.hdc = preview.hdc;
draw_preview(hEditorWnd, &fr, &paper, preview.page);
if(preview.pages_shown > 1)
{
if (!preview.hdc2)
{
preview.hdc2 = CreateCompatibleDC(hdc);
hBitmapCapture = CreateCompatibleBitmap(hdc,
preview.bmSize.cx,
preview.bmSize.cy);
SelectObject(preview.hdc2, hBitmapCapture);
}
fr.hdc = preview.hdc2;
draw_preview(hEditorWnd, &fr, &fr.rcPage, preview.page + 1);
}
DeleteDC(fr.hdcTarget);
ReleaseDC(hwndPreview, hdc);
InvalidateRect(hwndPreview, NULL, FALSE);
update_preview_buttons(hMainWnd);
update_preview_statusbar(hMainWnd);
}
static void toggle_num_pages(HWND hMainWnd)
{
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
WCHAR name[MAX_STRING_LEN];
HINSTANCE hInst = GetModuleHandleW(0);
int nPreviewPages;
preview.pages_shown = preview.pages_shown > 1 ? 1 : 2;
nPreviewPages = preview.zoomlevel > 0 ? preview.saved_pages_shown :
preview.pages_shown;
LoadStringW(hInst, nPreviewPages > 1 ? STRING_PREVIEW_ONEPAGE :
STRING_PREVIEW_TWOPAGES,
name, MAX_STRING_LEN);
SetWindowTextW(GetDlgItem(hReBar, ID_PREVIEW_NUMPAGES), name);
update_preview_sizes(GetDlgItem(hMainWnd, IDC_PREVIEW), TRUE);
update_preview(hMainWnd);
}
/* Returns the page shown that the point is in (1 or 2) or 0 if the point
* isn't inside either page */
static int preview_page_hittest(POINT pt)
{
RECT rc;
rc.left = preview.spacing.cx;
rc.right = rc.left + preview.bmScaledSize.cx;
rc.top = preview.spacing.cy;