src/frontends/qt4/GuiExternal.cpp

   1 /**
   2  * \file GuiExternal.cpp
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author John Levon
   7  * \author Angus Leeming
   8  * \author Asger Alstrup
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "GuiExternal.h"
  16
  17 #include "FuncRequest.h"
  18 #include "support/gettext.h"
  19 #include "Length.h"
  20 #include "LyXRC.h"
  21
  22 #include "insets/ExternalSupport.h"
  23 #include "insets/ExternalTemplate.h"
  24 #include "insets/InsetExternal.h"
  25
  26 #include "graphics/GraphicsCache.h"
  27 #include "graphics/GraphicsCacheItem.h"
  28 #include "graphics/GraphicsImage.h"
  29
  30 #include "support/convert.h"
  31 #include "support/FileFilterList.h"
  32 #include "support/filetools.h"
  33 #include "support/lstrings.h"
  34 #include "support/lyxlib.h"
  35 #include "support/os.h"
  36
  37 #include "LengthCombo.h"
  38 #include "qt_helpers.h"
  39 #include "Validator.h"
  40
  41 #include <QCloseEvent>
  42 #include <QCheckBox>
  43 #include <QLineEdit>
  44 #include <QPushButton>
  45 #include <QTabWidget>
  46 #include <QTextBrowser>
  47
  48 using namespace std;
  49 using namespace lyx::support;
  50
  51 namespace lyx {
  52 namespace frontend {
  53
  54 using namespace external;
  55
  56 namespace {
  57
  58 RotationDataType origins_array[] = {
  59         RotationData::DEFAULT,
  60         RotationData::TOPLEFT,
  61         RotationData::BOTTOMLEFT,
  62         RotationData::BASELINELEFT,
  63         RotationData::CENTER,
  64         RotationData::TOPCENTER,
  65         RotationData::BOTTOMCENTER,
  66         RotationData::BASELINECENTER,
  67         RotationData::TOPRIGHT,
  68         RotationData::BOTTOMRIGHT,
  69         RotationData::BASELINERIGHT
  70 };
  71
  72
  73 size_type const origins_array_size =
  74 sizeof(origins_array) / sizeof(origins_array[0]);
  75
  76 vector<external::RotationDataType> const
  77 all_origins(origins_array, origins_array + origins_array_size);
  78
  79 // These are the strings, corresponding to the above, that the GUI should
  80 // use. Note that they can/should be translated.
  81 char const * const origin_gui_strs[] = {
  82         N_("Default"),
  83         N_("Top left"), N_("Bottom left"), N_("Baseline left"),
  84         N_("Center"), N_("Top center"), N_("Bottom center"), N_("Baseline center"),
  85         N_("Top right"), N_("Bottom right"), N_("Baseline right")
  86 };
  87
  88 } // namespace anon
  89
  90
  91 GuiExternal::GuiExternal(GuiView & lv)
  92         : GuiDialog(lv, "external", qt_("External Material")), bbChanged_(false)
  93 {
  94         setupUi(this);
  95
  96         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  97         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  98         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  99
 100         connect(displayCB, SIGNAL(toggled(bool)),
 101                 showCO, SLOT(setEnabled(bool)));
 102         connect(displayCB, SIGNAL(toggled(bool)),
 103                 displayscaleED, SLOT(setEnabled(bool)));
 104         connect(showCO, SIGNAL(activated(QString)),
 105                 this, SLOT(change_adaptor()));
 106         connect(originCO, SIGNAL(activated(int)),
 107                 this, SLOT(change_adaptor()));
 108         connect(aspectratioCB, SIGNAL(stateChanged(int)),
 109                 this, SLOT(change_adaptor()));
 110         connect(browsePB, SIGNAL(clicked()),
 111                 this, SLOT(browseClicked()));
 112         connect(embedCB, SIGNAL(toggled(bool)),
 113                 this, SLOT(change_adaptor()));
 114         connect(editPB, SIGNAL(clicked()),
 115                 this, SLOT(editClicked()));
 116         connect(externalCO, SIGNAL(activated(QString)),
 117                 this, SLOT(templateChanged()));
 118         connect(extraED, SIGNAL(textChanged(QString)),
 119                 this, SLOT(extraChanged(QString)));
 120         connect(extraFormatCO, SIGNAL(activated(QString)),
 121                 this, SLOT(formatChanged(QString)));
 122         connect(widthUnitCO, SIGNAL(activated(int)),
 123                 this, SLOT(widthUnitChanged()));
 124         connect(heightUnitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
 125                 this, SLOT(change_adaptor()));
 126         connect(displayCB, SIGNAL(stateChanged(int)),
 127                 this, SLOT(change_adaptor()));
 128         connect(displayscaleED, SIGNAL(textChanged(QString)),
 129                 this, SLOT(change_adaptor()));
 130         connect(angleED, SIGNAL(textChanged(QString)),
 131                 this, SLOT(change_adaptor()));
 132         connect(widthED, SIGNAL(textChanged(QString)),
 133                 this, SLOT(sizeChanged()));
 134         connect(heightED, SIGNAL(textChanged(QString)),
 135                 this, SLOT(sizeChanged()));
 136         connect(fileED, SIGNAL(textChanged(QString)),
 137                 this, SLOT(change_adaptor()));
 138         connect(clipCB, SIGNAL(stateChanged(int)),
 139                 this, SLOT(change_adaptor()));
 140         connect(getbbPB, SIGNAL(clicked()), this, SLOT(getbbClicked()));
 141         connect(xrED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 142         connect(ytED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 143         connect(xlED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 144         connect(ybED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 145         connect(draftCB, SIGNAL(clicked()), this, SLOT(change_adaptor()));
 146
 147         QIntValidator * validator = new QIntValidator(displayscaleED);
 148         validator->setBottom(1);
 149         displayscaleED->setValidator(validator);
 150
 151         angleED->setValidator(new QDoubleValidator(-360, 360, 2, angleED));
 152
 153         xlED->setValidator(new QIntValidator(xlED));
 154         ybED->setValidator(new QIntValidator(ybED));
 155         xrED->setValidator(new QIntValidator(xrED));
 156         ytED->setValidator(new QIntValidator(ytED));
 157
 158         widthED->setValidator(unsignedLengthValidator(widthED));
 159         heightED->setValidator(unsignedLengthValidator(heightED));
 160
 161         setFocusProxy(fileED);
 162
 163         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
 164
 165         bc().setOK(okPB);
 166         bc().setApply(applyPB);
 167         bc().setCancel(closePB);
 168
 169         bc().addReadOnly(fileED);
 170         bc().addReadOnly(browsePB);
 171         bc().addReadOnly(editPB);
 172         bc().addReadOnly(externalCO);
 173         bc().addReadOnly(draftCB);
 174         bc().addReadOnly(displayscaleED);
 175         bc().addReadOnly(showCO);
 176         bc().addReadOnly(displayCB);
 177         bc().addReadOnly(angleED);
 178         bc().addReadOnly(originCO);
 179         bc().addReadOnly(heightUnitCO);
 180         bc().addReadOnly(heightED);
 181         bc().addReadOnly(aspectratioCB);
 182         bc().addReadOnly(widthUnitCO);
 183         bc().addReadOnly(widthED);
 184         bc().addReadOnly(clipCB);
 185         bc().addReadOnly(getbbPB);
 186         bc().addReadOnly(ytED);
 187         bc().addReadOnly(xlED);
 188         bc().addReadOnly(xrED);
 189         bc().addReadOnly(ybED);
 190         bc().addReadOnly(extraFormatCO);
 191         bc().addReadOnly(extraED);
 192
 193         bc().addCheckedLineEdit(angleED, angleLA);
 194         bc().addCheckedLineEdit(displayscaleED, scaleLA);
 195         bc().addCheckedLineEdit(heightED, heightLA);
 196         bc().addCheckedLineEdit(widthED, widthLA);
 197         bc().addCheckedLineEdit(xlED, lbLA);
 198         bc().addCheckedLineEdit(ybED, lbLA);
 199         bc().addCheckedLineEdit(xrED, rtLA);
 200         bc().addCheckedLineEdit(ytED, rtLA);
 201         bc().addCheckedLineEdit(fileED, fileLA);
 202
 203         vector<string> templates = getTemplates();
 204
 205         for (vector<string>::const_iterator cit = templates.begin();
 206                 cit != templates.end(); ++cit) {
 207                 externalCO->addItem(qt_(*cit));
 208         }
 209
 210         // Fill the origins combo
 211         for (size_t i = 0; i != all_origins.size(); ++i)
 212                 originCO->addItem(qt_(origin_gui_strs[i]));
 213
 214         // Fill the width combo
 215         widthUnitCO->addItem(qt_("Scale%"));
 216         for (int i = 0; i < num_units; i++)
 217                 widthUnitCO->addItem(qt_(unit_name_gui[i]));
 218 }
 219
 220
 221 bool GuiExternal::activateAspectratio() const
 222 {
 223         if (widthUnitCO->currentIndex() == 0)
 224                 return false;
 225
 226         string const wstr = fromqstr(widthED->text());
 227         if (wstr.empty())
 228                 return false;
 229         bool const wIsDbl = isStrDbl(wstr);
 230         if (wIsDbl && float_equal(convert<double>(wstr), 0.0, 0.05))
 231                 return false;
 232         Length l;
 233         if (!wIsDbl && (!isValidLength(wstr, &l) || l.zero()))
 234                 return false;
 235
 236         string const hstr = fromqstr(heightED->text());
 237         if (hstr.empty())
 238                 return false;
 239         bool const hIsDbl = isStrDbl(hstr);
 240         if (hIsDbl && float_equal(convert<double>(hstr), 0.0, 0.05))
 241                 return false;
 242         if (!hIsDbl && (!isValidLength(hstr, &l) || l.zero()))
 243                 return false;
 244
 245         return true;
 246 }
 247
 248
 249 void GuiExternal::bbChanged()
 250 {
 251         bbChanged_ = true;
 252         changed();
 253 }
 254
 255
 256 void GuiExternal::browseClicked()
 257 {
 258         int const choice =  externalCO->currentIndex();
 259         docstring const template_name = from_utf8(getTemplate(choice).lyxName);
 260         docstring const str = browse(qstring_to_ucs4(fileED->text()), template_name);
 261         if (!str.empty()) {
 262                 fileED->setText(toqstr(str));
 263                 changed();
 264         }
 265 }
 266
 267
 268 void GuiExternal::change_adaptor()
 269 {
 270         changed();
 271 }
 272
 273
 274 void GuiExternal::editClicked()
 275 {
 276         editExternal();
 277 }
 278
 279
 280
 281 void GuiExternal::extraChanged(const QString& text)
 282 {
 283         string const format = fromqstr(extraFormatCO->currentText());
 284         extra_[format] = text;
 285         changed();
 286 }
 287
 288
 289 void GuiExternal::formatChanged(const QString& format)
 290 {
 291         extraED->setText(extra_[fromqstr(format)]);
 292 }
 293
 294
 295 void GuiExternal::getbbClicked()
 296 {
 297         getBB();
 298 }
 299
 300
 301 void GuiExternal::sizeChanged()
 302 {
 303         aspectratioCB->setEnabled(activateAspectratio());
 304         changed();
 305 }
 306
 307
 308 void GuiExternal::templateChanged()
 309 {
 310         updateTemplate();
 311         changed();
 312 }
 313
 314
 315 void GuiExternal::widthUnitChanged()
 316 {
 317         bool useHeight = (widthUnitCO->currentIndex() > 0);
 318
 319         if (useHeight)
 320                 widthED->setValidator(unsignedLengthValidator(widthED));
 321         else
 322                 widthED->setValidator(new QDoubleValidator(0, 1000, 2, widthED));
 323
 324         heightED->setEnabled(useHeight);
 325         heightUnitCO->setEnabled(useHeight);
 326         changed();
 327 }
 328
 329
 330 static Length::UNIT defaultUnit()
 331 {
 332         Length::UNIT default_unit = Length::CM;
 333         switch (lyxrc.default_papersize) {
 334         case PAPER_USLETTER:
 335         case PAPER_USLEGAL:
 336         case PAPER_USEXECUTIVE:
 337                 default_unit = Length::IN;
 338                 break;
 339         default:
 340                 break;
 341         }
 342         return default_unit;
 343 }
 344
 345
 346 static void setDisplay(
 347         QCheckBox & displayCB, QComboBox & showCO, QLineEdit & scaleED,
 348         external::DisplayType display, unsigned int scale, bool read_only)
 349 {
 350         int item = 0;
 351         switch (display) {
 352         case external::DefaultDisplay:
 353                 item = 0;
 354                 break;
 355         case external::MonochromeDisplay:
 356                 item = 1;
 357                 break;
 358         case external::GrayscaleDisplay:
 359                 item = 2;
 360                 break;
 361         case external::ColorDisplay:
 362                 item = 3;
 363                 break;
 364         case external::PreviewDisplay:
 365                 item = 4;
 366                 break;
 367         case external::NoDisplay:
 368                 item = 0;
 369                 break;
 370         }
 371
 372         showCO.setCurrentIndex(item);
 373         bool const no_display = display == external::NoDisplay;
 374         showCO.setEnabled(!no_display && !read_only);
 375         displayCB.setChecked(!no_display);
 376         scaleED.setEnabled(!no_display && !read_only);
 377         scaleED.setText(QString::number(scale));
 378 }
 379
 380
 381 static void getDisplay(external::DisplayType & display,
 382                 unsigned int & scale,
 383                 QCheckBox const & displayCB,
 384                 QComboBox const & showCO,
 385                 QLineEdit const & scaleED)
 386 {
 387         switch (showCO.currentIndex()) {
 388         case 0:
 389                 display = external::DefaultDisplay;
 390                 break;
 391         case 1:
 392                 display = external::MonochromeDisplay;
 393                 break;
 394         case 2:
 395                 display = external::GrayscaleDisplay;
 396                 break;
 397         case 3:
 398                 display = external::ColorDisplay;
 399                 break;
 400         case 4:
 401                 display = external::PreviewDisplay;
 402                 break;
 403         }
 404
 405         if (!displayCB.isChecked())
 406                 display = external::NoDisplay;
 407
 408         scale = scaleED.text().toInt();
 409 }
 410
 411
 412 static void setRotation(QLineEdit & angleED, QComboBox & originCO,
 413         external::RotationData const & data)
 414 {
 415         originCO.setCurrentIndex(int(data.origin()));
 416         angleED.setText(toqstr(data.angle));
 417 }
 418
 419
 420 static void getRotation(external::RotationData & data,
 421         QLineEdit const & angleED, QComboBox const & originCO)
 422 {
 423         typedef external::RotationData::OriginType OriginType;
 424
 425         data.origin(static_cast<OriginType>(originCO.currentIndex()));
 426         data.angle = fromqstr(angleED.text());
 427 }
 428
 429
 430 static void setSize(QLineEdit & widthED, QComboBox & widthUnitCO,
 431         QLineEdit & heightED, LengthCombo & heightUnitCO,
 432         QCheckBox & aspectratioCB,
 433         external::ResizeData const & data)
 434 {
 435         bool using_scale = data.usingScale();
 436         string scale = data.scale;
 437         if (data.no_resize()) {
 438                 // Everything is zero, so default to this!
 439                 using_scale = true;
 440                 scale = "100";
 441         }
 442
 443         if (using_scale) {
 444                 widthED.setText(toqstr(scale));
 445                 widthUnitCO.setCurrentIndex(0);
 446         } else {
 447                 widthED.setText(QString::number(data.width.value()));
 448                 // Because 'Scale' is position 0...
 449                 // Note also that width cannot be zero here, so
 450                 // we don't need to worry about the default unit.
 451                 widthUnitCO.setCurrentIndex(data.width.unit() + 1);
 452         }
 453
 454         string const h = data.height.zero() ? string() : data.height.asString();
 455         Length::UNIT default_unit = data.width.zero() ?
 456                 defaultUnit() : data.width.unit();
 457         lengthToWidgets(&heightED, &heightUnitCO, h, default_unit);
 458
 459         heightED.setEnabled(!using_scale);
 460         heightUnitCO.setEnabled(!using_scale);
 461
 462         aspectratioCB.setChecked(data.keepAspectRatio);
 463
 464         bool const disable_aspectRatio = using_scale ||
 465                 data.width.zero() || data.height.zero();
 466         aspectratioCB.setEnabled(!disable_aspectRatio);
 467 }
 468
 469
 470 static void getSize(external::ResizeData & data,
 471         QLineEdit const & widthED, QComboBox const & widthUnitCO,
 472         QLineEdit const & heightED, LengthCombo const & heightUnitCO,
 473         QCheckBox const & aspectratioCB)
 474 {
 475         string const width = fromqstr(widthED.text());
 476
 477         if (widthUnitCO.currentIndex() > 0) {
 478                 // Subtract one, because scale is 0.
 479                 int const unit = widthUnitCO.currentIndex() - 1;
 480
 481                 Length w;
 482                 if (isValidLength(width, &w))
 483                         data.width = w;
 484                 else if (isStrDbl(width))
 485                         data.width = Length(convert<double>(width),
 486                                            static_cast<Length::UNIT>(unit));
 487                 else
 488                         data.width = Length();
 489
 490                 data.scale = string();
 491
 492         } else {
 493                 // scaling instead of a width
 494                 data.scale = width;
 495                 data.width = Length();
 496         }
 497
 498         data.height = Length(widgetsToLength(&heightED, &heightUnitCO));
 499
 500         data.keepAspectRatio = aspectratioCB.isChecked();
 501 }
 502
 503
 504 void setCrop(QCheckBox & clipCB,
 505         QLineEdit & xlED, QLineEdit & ybED,
 506         QLineEdit & xrED, QLineEdit & ytED,
 507         external::ClipData const & data)
 508 {
 509         clipCB.setChecked(data.clip);
 510         graphics::BoundingBox const & bbox = data.bbox;
 511         xlED.setText(QString::number(bbox.xl));
 512         ybED.setText(QString::number(bbox.yb));
 513         xrED.setText(QString::number(bbox.xr));
 514         ytED.setText(QString::number(bbox.yt));
 515 }
 516
 517
 518 static void getCrop(external::ClipData & data,
 519         QCheckBox const & clipCB,
 520         QLineEdit const & xlED, QLineEdit const & ybED,
 521         QLineEdit const & xrED, QLineEdit const & ytED,
 522         bool bb_changed)
 523 {
 524         data.clip = clipCB.isChecked();
 525
 526         if (!bb_changed)
 527                 return;
 528
 529         data.bbox.xl = xlED.text().toInt();
 530         data.bbox.yb = ybED.text().toInt();
 531         data.bbox.xr = xrED.text().toInt();
 532         data.bbox.yt = ytED.text().toInt();
 533 }
 534
 535
 536 static void getExtra(external::ExtraData & data,
 537               GuiExternal::MapType const & extra)
 538 {
 539         typedef GuiExternal::MapType MapType;
 540         MapType::const_iterator it = extra.begin();
 541         MapType::const_iterator const end = extra.end();
 542         for (; it != end; ++it)
 543                 data.set(it->first, trim(fromqstr(it->second)));
 544 }
 545
 546
 547 void GuiExternal::updateContents()
 548 {
 549         tab->setCurrentIndex(0);
 550
 551         string const name =
 552                 params_.filename.outputFilename(bufferFilepath());
 553         fileED->setText(toqstr(name));
 554         embedCB->setCheckState(params_.filename.embedded() ? Qt::Checked : Qt::Unchecked);
 555
 556         externalCO->setCurrentIndex(getTemplateNumber(params_.templatename()));
 557         updateTemplate();
 558
 559         draftCB->setChecked(params_.draft);
 560
 561         setDisplay(*displayCB, *showCO, *displayscaleED,
 562                    params_.display, params_.lyxscale, isBufferReadonly());
 563
 564         setRotation(*angleED, *originCO, params_.rotationdata);
 565
 566         setSize(*widthED, *widthUnitCO, *heightED, *heightUnitCO,
 567                 *aspectratioCB, params_.resizedata);
 568
 569         setCrop(*clipCB, *xlED, *ybED, *xrED, *ytED, params_.clipdata);
 570         bbChanged_ = !params_.clipdata.bbox.empty();
 571
 572         isValid();
 573 }
 574
 575
 576 void GuiExternal::updateTemplate()
 577 {
 578         external::Template templ = getTemplate(externalCO->currentIndex());
 579         externalTB->setPlainText(qt_(templ.helpText));
 580
 581         // Ascertain which (if any) transformations the template supports
 582         // and disable tabs hosting unsupported transforms.
 583         typedef vector<external::TransformID> TransformIDs;
 584         TransformIDs const transformIds = templ.transformIds;
 585         TransformIDs::const_iterator tr_begin = transformIds.begin();
 586         TransformIDs::const_iterator const tr_end = transformIds.end();
 587
 588         bool found = std::find(tr_begin, tr_end, external::Rotate) != tr_end;
 589         tab->setTabEnabled(tab->indexOf(rotatetab), found);
 590         found = std::find(tr_begin, tr_end, external::Resize) != tr_end;
 591         tab->setTabEnabled(tab->indexOf(scaletab), found);
 592
 593         found = std::find(tr_begin, tr_end, external::Clip) != tr_end;
 594         tab->setTabEnabled(tab->indexOf(croptab), found);
 595
 596         found = std::find(tr_begin, tr_end, external::Extra) != tr_end;
 597         tab->setTabEnabled(tab->indexOf(optionstab), found);
 598
 599         if (!found)
 600                 return;
 601
 602         // Ascertain whether the template has any formats supporting
 603         // the 'Extra' option
 604         extra_.clear();
 605         extraED->clear();
 606         extraFormatCO->clear();
 607
 608         external::Template::Formats::const_iterator it  = templ.formats.begin();
 609         external::Template::Formats::const_iterator end = templ.formats.end();
 610         for (; it != end; ++it) {
 611                 if (it->second.option_transformers.find(external::Extra) ==
 612                     it->second.option_transformers.end())
 613                         continue;
 614                 string const format = it->first;
 615                 string const opt = params_.extradata.get(format);
 616                 extraFormatCO->addItem(toqstr(format));
 617                 extra_[format] = toqstr(opt);
 618         }
 619
 620         bool const enabled = extraFormatCO->count()  > 0;
 621
 622         tab->setTabEnabled(
 623                 tab->indexOf(optionstab), enabled);
 624         extraED->setEnabled(enabled && !isBufferReadonly());
 625         extraFormatCO->setEnabled(enabled);
 626
 627         if (enabled) {
 628                 extraFormatCO->setCurrentIndex(0);
 629                 extraED->setText(extra_[fromqstr(extraFormatCO->currentText())]);
 630         }
 631 }
 632
 633
 634 void GuiExternal::applyView()
 635 {
 636         params_.filename.set(fromqstr(fileED->text()), bufferFilepath());
 637         params_.filename.setEmbed(embedCB->checkState() == Qt::Checked);
 638
 639         params_.settemplate(getTemplate(externalCO->currentIndex()).lyxName);
 640
 641         params_.draft = draftCB->isChecked();
 642
 643         getDisplay(params_.display, params_.lyxscale,
 644                    *displayCB, *showCO,
 645                    *displayscaleED);
 646
 647         if (tab->isTabEnabled(tab->indexOf(rotatetab)))
 648                 getRotation(params_.rotationdata, *angleED, *originCO);
 649
 650         if (tab->isTabEnabled(tab->indexOf(scaletab)))
 651                 getSize(params_.resizedata, *widthED, *widthUnitCO,
 652                         *heightED, *heightUnitCO, *aspectratioCB);
 653
 654         if (tab->isTabEnabled(tab->indexOf(croptab)))
 655                 getCrop(params_.clipdata, *clipCB, *xlED, *ybED,
 656                         *xrED, *ytED, bbChanged_);
 657
 658         if (tab->isTabEnabled(tab->indexOf(optionstab)))
 659                 getExtra(params_.extradata, extra_);
 660 }
 661
 662
 663 void GuiExternal::getBB()
 664 {
 665         xlED->setText("0");
 666         ybED->setText("0");
 667         xrED->setText("0");
 668         ytED->setText("0");
 669
 670         string const filename = fromqstr(fileED->text());
 671         if (filename.empty())
 672                 return;
 673
 674         string const bb = readBB(filename);
 675         if (bb.empty())
 676                 return;
 677
 678         xlED->setText(toqstr(token(bb, ' ', 0)));
 679         ybED->setText(toqstr(token(bb, ' ', 1)));
 680         xrED->setText(toqstr(token(bb, ' ', 2)));
 681         ytED->setText(toqstr(token(bb, ' ', 3)));
 682
 683         bbChanged_ = false;
 684 }
 685
 686
 687 bool GuiExternal::initialiseParams(string const & data)
 688 {
 689         InsetExternalMailer::string2params(data, buffer(), params_);
 690         return true;
 691 }
 692
 693
 694 void GuiExternal::clearParams()
 695 {
 696         params_ = InsetExternalParams();
 697 }
 698
 699
 700 void GuiExternal::dispatchParams()
 701 {
 702         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 703         dispatch(FuncRequest(getLfun(), lfun));
 704 }
 705
 706
 707 void GuiExternal::editExternal()
 708 {
 709         applyView();
 710         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 711         dispatch(FuncRequest(LFUN_EXTERNAL_EDIT, lfun));
 712 }
 713
 714
 715 vector<string> const GuiExternal::getTemplates() const
 716 {
 717         vector<string> result;
 718
 719         external::TemplateManager::Templates::const_iterator i1, i2;
 720         i1 = external::TemplateManager::get().getTemplates().begin();
 721         i2 = external::TemplateManager::get().getTemplates().end();
 722
 723         for (; i1 != i2; ++i1) {
 724                 result.push_back(i1->second.lyxName);
 725         }
 726         return result;
 727 }
 728
 729
 730 int GuiExternal::getTemplateNumber(string const & name) const
 731 {
 732         external::TemplateManager::Templates::const_iterator i1, i2;
 733         i1 = external::TemplateManager::get().getTemplates().begin();
 734         i2 = external::TemplateManager::get().getTemplates().end();
 735         for (int i = 0; i1 != i2; ++i1, ++i) {
 736                 if (i1->second.lyxName == name)
 737                         return i;
 738         }
 739
 740         // we can get here if a LyX document has a template not installed
 741         // on this machine.
 742         return -1;
 743 }
 744
 745
 746 external::Template GuiExternal::getTemplate(int i) const
 747 {
 748         external::TemplateManager::Templates::const_iterator i1
 749                 = external::TemplateManager::get().getTemplates().begin();
 750
 751         advance(i1, i);
 752
 753         return i1->second;
 754 }
 755
 756
 757 string const
 758 GuiExternal::getTemplateFilters(string const & template_name) const
 759 {
 760         /// Determine the template file extension
 761         external::TemplateManager const & etm =
 762                 external::TemplateManager::get();
 763         external::Template const * const et_ptr =
 764                 etm.getTemplateByName(template_name);
 765
 766         if (et_ptr)
 767                 return et_ptr->fileRegExp;
 768
 769         return string();
 770 }
 771
 772
 773 docstring const GuiExternal::browse(docstring const & input,
 774                                      docstring const & template_name) const
 775 {
 776         docstring const title =  _("Select external file");
 777
 778         docstring const bufpath = from_utf8(bufferFilepath());
 779         FileFilterList const filter =
 780                 FileFilterList(from_utf8(getTemplateFilters(to_utf8(template_name))));
 781
 782         docstring const label1 = _("Documents|#o#O");
 783         docstring const dir1 = from_utf8(lyxrc.document_path);
 784
 785         return browseRelFile(input, bufpath, title, filter, false, label1, dir1);
 786 }
 787
 788
 789 string const GuiExternal::readBB(string const & file)
 790 {
 791         FileName const abs_file(makeAbsPath(file, bufferFilepath()));
 792
 793         // try to get it from the file, if possible. Zipped files are
 794         // unzipped in the readBB_from_PSFile-Function
 795         string const bb = readBB_from_PSFile(abs_file);
 796         if (!bb.empty())
 797                 return bb;
 798
 799         // we don't, so ask the Graphics Cache if it has loaded the file
 800         int width = 0;
 801         int height = 0;
 802
 803         graphics::Cache & gc = graphics::Cache::get();
 804         if (gc.inCache(abs_file)) {
 805                 graphics::Image const * image = gc.item(abs_file)->image();
 806
 807                 if (image) {
 808                         width  = image->width();
 809                         height = image->height();
 810                 }
 811         }
 812
 813         return ("0 0 " + convert<string>(width) + ' ' + convert<string>(height));
 814 }
 815
 816
 817 Dialog * createGuiExternal(GuiView & lv) { return new GuiExternal(lv); }
 818
 819
 820 } // namespace frontend
 821 } // namespace lyx
 822
 823 #include "GuiExternal_moc.cpp"