summaryrefslogtreecommitdiffstats
path: root/kdvi/kdvi_multipage.cpp
blob: 6a578873d1620ba0159c568d9830685fc2a5a18c (plain)
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
#include <config.h>
#include <tdeaction.h>
#include <tdeaboutdata.h>
#include <tdeaboutdialog.h>
#include <tdeapplication.h>
#include <kbugreport.h>
#include <tdeconfigdialog.h>
#include <kdebug.h>
#include <tdefiledialog.h>
#include <tdeglobal.h>
#include <tdelocale.h>
#include <tdemessagebox.h>
#include <kstdaction.h>
#include <tdetempfile.h>
#include <ktip.h>
#include <tqtimer.h>

#include <tdeparts/part.h>
#include <tdeparts/genericfactory.h>

#include "kdvi_multipage.h"
#include "documentWidget.h"
#include "dviFile.h"
#include "dviPageCache.h"
#include "dviWidget.h"
#include "fontpool.h"
#include "kprinterwrapper.h"
#include "kviewpart.h"
#include "martdelist.h"
#include "optionDialogFontsWidget.h"
#include "optionDialogSpecialWidget.h"
#include "performanceMeasurement.h"
#include "prefs.h"
#include "renderedDocumentPagePixmap.h"


#include <tqlabel.h>

//#define KDVI_MULTIPAGE_DEBUG

#ifdef PERFORMANCE_MEASUREMENT
// These objects are explained in the file "performanceMeasurement.h"
TQTime performanceTimer;
int  performanceFlag = 0;
#endif

typedef KParts::GenericFactory<KDVIMultiPage> KDVIMultiPageFactory;
K_EXPORT_COMPONENT_FACTORY(kdvipart, KDVIMultiPageFactory)



KDVIMultiPage::KDVIMultiPage(TQWidget *parentWidget, const char *widgetName, TQObject *parent,
                             const char *name, const TQStringList& args)
  : KMultiPage(parentWidget, widgetName, parent, name), DVIRenderer(parentWidget)
{
  Q_UNUSED(args);
#ifdef PERFORMANCE_MEASUREMENT
  performanceTimer.start();
#endif

  searchUsed = false;

  setInstance(KDVIMultiPageFactory::instance());

  // Points to the same object as renderer to avoid downcasting.
  // FIXME: Remove when the API of the Renderer-class is finished.
  DVIRenderer.setName("DVI renderer");
  setRenderer(&DVIRenderer);

  docInfoAction    = new TDEAction(i18n("Document &Info"), "info", 0, &DVIRenderer, TQT_SLOT(showInfo()), actionCollection(), "info_dvi");
  embedPSAction    = new TDEAction(i18n("Embed External PostScript Files..."), 0, this, TQT_SLOT(slotEmbedPostScript()), actionCollection(), "embed_postscript");
  new TDEAction(i18n("Enable All Warnings && Messages"), 0, this, TQT_SLOT(doEnableWarnings()), actionCollection(), "enable_msgs");
  exportPSAction   = new TDEAction(i18n("PostScript..."), 0, &DVIRenderer, TQT_SLOT(exportPS()), actionCollection(), "export_postscript");
  exportPDFAction  = new TDEAction(i18n("PDF..."), 0, &DVIRenderer, TQT_SLOT(exportPDF()), actionCollection(), "export_pdf");

  KStdAction::tipOfDay(this, TQT_SLOT(showTip()), actionCollection(), "help_tipofday");

  setXMLFile("kdvi_part.rc");

  preferencesChanged();

  enableActions(false);
  // Show tip of the day, when the first main window is shown.
  TQTimer::singleShot(0,this,TQT_SLOT(showTipOnStart()));
}


KDVIMultiPage::~KDVIMultiPage()
{
  delete docInfoAction;
  delete embedPSAction;
  delete exportPSAction;
  delete exportPDFAction;

  Prefs::writeConfig();
}


TDEAboutData* KDVIMultiPage::createAboutData()
{
  TDEAboutData* about = new TDEAboutData("kdvi", I18N_NOOP("KDVI"), "1.3",
                      I18N_NOOP("A previewer for Device Independent files (DVI files) produced by the TeX typesetting system."),
                     TDEAboutData::License_GPL,
                     "Markku Hinhala, Stephan Kebekus",
                     I18N_NOOP("This program displays Device Independent (DVI) files which are produced by the TeX typesetting system.\n"
                     "KDVI 1.3 is based on original code from KDVI version 0.43 and xdvik."));

  about->addAuthor ("Stefan Kebekus",
                    I18N_NOOP("Current Maintainer."),
                    "kebekus@kde.org",
                    "http://www.mi.uni-koeln.de/~kebekus");

  about->addAuthor ("Markku Hinhala", I18N_NOOP("Author of kdvi 0.4.3"));
  about->addAuthor ("Nicolai Langfeldt", I18N_NOOP("Maintainer of xdvik"));
  about->addAuthor ("Paul Vojta", I18N_NOOP("Author of xdvi"));
  about->addCredit ("Philipp Lehmann", I18N_NOOP("Testing and bug reporting."));
  about->addCredit ("Wilfried Huss", I18N_NOOP("Re-organisation of source code."));

  return about;
}


void KDVIMultiPage::slotEmbedPostScript()
{
  DVIRenderer.embedPostScript();
  emit askingToCheckActions();
}


void KDVIMultiPage::setEmbedPostScriptAction()
{
  if ((DVIRenderer.dviFile == 0) || (DVIRenderer.dviFile->numberOfExternalPSFiles == 0))
    embedPSAction->setEnabled(false);
  else
    embedPSAction->setEnabled(true);
}


void KDVIMultiPage::slotSave()
{
  // Try to guess the proper ending...
  TQString formats;
  TQString ending;
  int rindex = m_file.findRev(".");
  if (rindex == -1) {
    ending = TQString();
    formats = TQString();
  } else {
    ending = m_file.mid(rindex); // e.g. ".dvi"
    formats = fileFormats().grep(ending).join("\n");
  }

  TQString fileName = KFileDialog::getSaveFileName(TQString(), formats, 0, i18n("Save File As"));

  if (fileName.isEmpty())
    return;

  // Add the ending to the filename. I hope the user likes it that
  // way.
  if (!ending.isEmpty() && fileName.find(ending) == -1)
    fileName = fileName+ending;

  if (TQFile(fileName).exists()) {
    int r = KMessageBox::warningContinueCancel (0, i18n("The file %1\nexists. Do you want to overwrite that file?").arg(fileName),
                       i18n("Overwrite File"), i18n("Overwrite"));
    if (r == KMessageBox::Cancel)
      return;
  }

  // TODO: error handling...
  if ((DVIRenderer.dviFile != 0) && (DVIRenderer.dviFile->dvi_Data() != 0))
    DVIRenderer.dviFile->saveAs(fileName);
  
  return;
}


void KDVIMultiPage::slotSave_defaultFilename()
{
  // TODO: error handling...
  if (DVIRenderer.dviFile != 0)
    DVIRenderer.dviFile->saveAs(m_file);
  return;
}


void KDVIMultiPage::setFile(bool r)
{
  enableActions(r);
}


TQStringList KDVIMultiPage::fileFormats() const
{
  TQStringList r;
  r << i18n("*.dvi *.DVI|TeX Device Independent Files (*.dvi)");
  return r;
}


void KDVIMultiPage::addConfigDialogs(TDEConfigDialog* configDialog)
{
  static optionDialogFontsWidget* fontConfigWidget = 0;
  
  fontConfigWidget = new optionDialogFontsWidget(scrollView());
  optionDialogSpecialWidget* specialConfigWidget = new optionDialogSpecialWidget(scrollView());
  
  configDialog->addPage(fontConfigWidget, Prefs::self(), i18n("TeX Fonts"), "fonts");
  configDialog->addPage(specialConfigWidget, Prefs::self(), i18n("DVI Specials"), "dvi");
  configDialog->setHelp("preferences", "kdvi");
}


void KDVIMultiPage::preferencesChanged()
{
  // Call method from parent class
  KMultiPage::preferencesChanged();
#ifdef  KDVI_MULTIPAGE_DEBUG
  kdDebug(4300) << "preferencesChanged" << endl;
#endif

  bool showPS = Prefs::showPS();
  bool useFontHints = Prefs::useFontHints();

  DVIRenderer.setPrefs( showPS, Prefs::editorCommand(), useFontHints);
}


void KDVIMultiPage::print()
{
  // Obtain a fully initialized KPrinter structure, and disable all
  // entries in the "Page Size & Placement" tab of the printer dialog.
  KPrinter *printer = getPrinter(false);
  // Abort with an error message if no KPrinter could be initialized
  if (printer == 0) {
    kdError(4300) << "KPrinter not available" << endl;
    return;
  }

  // Show the printer options dialog. Return immediately if the user
  // aborts.
  if (!printer->setup(parentWdg, i18n("Print %1").arg(m_file.section('/', -1)) ))
    return;

  // This funny method call is necessary for the KPrinter to return
  // proper results in printer->orientation() below. It seems that
  // KPrinter does some options parsing in that method.
  ((KDVIPrinterWrapper *)printer)->doPreparePrinting();
  if (printer->pageList().isEmpty()) {
    KMessageBox::error( scrollView(),
            i18n("The list of pages you selected was empty.\n"
                 "Maybe you made an error in selecting the pages, "
                 "e.g. by giving an invalid range like '7-2'.") );
    return;
  }

  // Turn the results of the options requestor into a list arguments
  // which are used by dvips.
  TQString dvips_options = TQString();
  // Print in reverse order.
  if ( printer->pageOrder() == KPrinter::LastPageFirst )
    dvips_options += "-r ";
  // Print only odd pages.
  if ( printer->pageSet() == KPrinter::OddPages )
    dvips_options += "-A ";
  // Print only even pages.
  if ( printer->pageSet() == KPrinter::EvenPages )
    dvips_options += "-B ";
  // We use the printer->pageSize() method to find the printer page
  // size, and pass that information on to dvips. Unfortunately, dvips
  // does not understand all of these; what exactly dvips understands,
  // depends on its configuration files. Consequence: expect problems
  // with unusual paper sizes.
  switch( printer->pageSize() ) {
  case KPrinter::A4:
    dvips_options += "-t a4 ";
    break;
  case KPrinter::B5:
    dvips_options += "-t b5 ";
    break;
    case KPrinter::Letter:
      dvips_options += "-t letter ";
      break;
  case KPrinter::Legal:
    dvips_options += "-t legal ";
    break;
    case KPrinter::Executive:
      dvips_options += "-t executive ";
      break;
  case KPrinter::A0:
    dvips_options += "-t a0 ";
    break;
  case KPrinter::A1:
    dvips_options += "-t a1 ";
    break;
  case KPrinter::A2:
    dvips_options += "-t a2 ";
    break;
  case KPrinter::A3:
    dvips_options += "-t a3 ";
    break;
  case KPrinter::A5:
    dvips_options += "-t a5 ";
    break;
  case KPrinter::A6:
    dvips_options += "-t a6 ";
    break;
  case KPrinter::A7:
    dvips_options += "-t a7 ";
    break;
  case KPrinter::A8:
    dvips_options += "-t a8 ";
      break;
  case KPrinter::A9:
    dvips_options += "-t a9 ";
    break;
  case KPrinter::B0:
    dvips_options += "-t b0 ";
    break;
  case KPrinter::B1:
    dvips_options += "-t b1 ";
    break;
  case KPrinter::B10:
    dvips_options += "-t b10 ";
    break;
  case KPrinter::B2:
    dvips_options += "-t b2 ";
    break;
  case KPrinter::B3:
    dvips_options += "-t b3 ";
    break;
  case KPrinter::B4:
    dvips_options += "-t b4 ";
    break;
  case KPrinter::B6:
    dvips_options += "-t b6 ";
    break;
  case KPrinter::B7:
    dvips_options += "-t b7 ";
    break;
  case KPrinter::B8:
    dvips_options += "-t b8 ";
    break;
  case KPrinter::B9:
    dvips_options += "-t b9 ";
    break;
  case KPrinter::C5E:
    dvips_options += "-t c5e ";
    break;
  case KPrinter::Comm10E:
    dvips_options += "-t comm10e ";
    break;
  case KPrinter::DLE:
    dvips_options += "-t dle ";
    break;
  case KPrinter::Folio:
    dvips_options += "-t folio ";
    break;
  case KPrinter::Ledger:
    dvips_options += "-t ledger ";
    break;
  case KPrinter::Tabloid:
    dvips_options += "-t tabloid ";
    break;
  default:
    break;
  }
  // Qt::Orientation
  if ( printer->orientation() == KPrinter::Landscape )
    dvips_options += "-t landscape ";


  // List of pages to print.
  TQValueList<int> pageList = printer->pageList();
  dvips_options += "-pp ";
  int commaflag = 0;
  for( TQValueList<int>::ConstIterator it = pageList.begin(); it != pageList.end(); ++it ) {
    if (commaflag == 1)
      dvips_options +=  TQString(",");
    else
      commaflag = 1;
    dvips_options += TQString("%1").arg(*it);
  }

  // Now print. For that, export the DVI-File to PostScript. Note that
  // dvips will run concurrently to keep the GUI responsive, keep log
  // of dvips and allow abort. Giving a non-zero printer argument
  // means that the dvi-widget will print the file when dvips
  // terminates, and then delete the output file.
  KTempFile tf;
  DVIRenderer.exportPS(tf.name(), dvips_options, printer);

  // "True" may be a bit euphemistic. However, since dvips runs
  // concurrently, there is no way of telling the result of the
  // printing command at this stage.
  return;
}


void KDVIMultiPage::enableActions(bool b)
{
  KMultiPage::enableActions(b);

  docInfoAction->setEnabled(b);
  exportPSAction->setEnabled(b);
  exportPDFAction->setEnabled(b);

  setEmbedPostScriptAction();
}


void KDVIMultiPage::doEnableWarnings()
{
  KMessageBox::information (scrollView(), i18n("All messages and warnings will now be shown."));
  KMessageBox::enableAllMessages();
  KTipDialog::setShowOnStart(true);
}


void KDVIMultiPage::showTip()
{
  KTipDialog::showTip(scrollView(), "kdvi/tips", true);
}


void KDVIMultiPage::showTipOnStart()
{
  KTipDialog::showTip(scrollView(), "kdvi/tips");
}


DocumentWidget* KDVIMultiPage::createDocumentWidget()
{
  DVIWidget* documentWidget = new DVIWidget(scrollView()->viewport(), scrollView(), pageCache,
                              "singlePageWidget" );

  // Lets not forget the connections we make in the KMultiPage
  connect(documentWidget, TQT_SIGNAL(clearSelection()), this, TQT_SLOT(clearSelection()));
  connect(this, TQT_SIGNAL(enableMoveTool(bool)), documentWidget, TQT_SLOT(slotEnableMoveTool(bool)));

  // Handle source links
  connect(documentWidget, TQT_SIGNAL(SRCLink(const TQString&, TQMouseEvent*, DocumentWidget*)), getRenderer(),
          TQT_SLOT(handleSRCLink(const TQString& ,TQMouseEvent*, DocumentWidget*)));

  return documentWidget;
}


void KDVIMultiPage::initializePageCache()
{
  pageCache = new DVIPageCache();
}


void KDVIMultiPage::showFindTextDialog()
{
  if ((getRenderer().isNull()) || (getRenderer()->supportsTextSearch() == false))
    return;

  if (!searchUsed)
  {
    // WARNING: This text appears several times in the code. Change
    // everywhere, or nowhere!
    if (KMessageBox::warningContinueCancel( scrollView(), 
					    i18n("<qt>This function searches the DVI file for plain text. Unfortunately, this version of "
						 "KDVI treats only plain ASCII characters properly. Symbols, ligatures, mathematical "
						 "formulae, accented characters, and non-English text, such as Russian or Korean, will "
						 "most likely be messed up completely. Continue anyway?</qt>"),
					    i18n("Function May Not Work as Expected"),
					    KStdGuiItem::cont(),
					    "warning_search_text_may_not_work") == KMessageBox::Cancel)
      return;

    // Remember that we don't need to show the warning message again.
    searchUsed = true;
  }

  // Now really show the search widget
  KMultiPage::showFindTextDialog();
}

#include "kdvi_multipage.moc"