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 "Buffer.h"
  18 #include "FuncRequest.h"
  19 #include "support/gettext.h"
  20 #include "Length.h"
  21 #include "LyXRC.h"
  22
  23 #include "insets/ExternalSupport.h"
  24 #include "insets/ExternalTemplate.h"
  25 #include "insets/InsetExternal.h"
  26
  27 #include "graphics/GraphicsCache.h"
  28 #include "graphics/GraphicsCacheItem.h"
  29 #include "graphics/GraphicsImage.h"
  30
  31 #include "frontends/alert.h"
  32
  33 #include "support/convert.h"
  34 #include "support/ExceptionMessage.h"
  35 #include "support/FileFilterList.h"
  36 #include "support/filetools.h"
  37 #include "support/lstrings.h"
  38 #include "support/lyxlib.h"
  39 #include "support/os.h"
  40
  41 #include "LengthCombo.h"
  42 #include "qt_helpers.h"
  43 #include "Validator.h"
  44
  45 #include <QCheckBox>
  46 #include <QLineEdit>
  47 #include <QPushButton>
  48 #include <QTabWidget>
  49 #include <QTextBrowser>
  50
  51 using namespace std;
  52 using namespace lyx::support;
  53
  54 namespace lyx {
  55 namespace frontend {
  56
  57 using namespace external;
  58
  59 namespace {
  60
  61 RotationDataType origins_array[] = {
  62         RotationData::DEFAULT,
  63         RotationData::TOPLEFT,
  64         RotationData::BOTTOMLEFT,
  65         RotationData::BASELINELEFT,
  66         RotationData::CENTER,
  67         RotationData::TOPCENTER,
  68         RotationData::BOTTOMCENTER,
  69         RotationData::BASELINECENTER,
  70         RotationData::TOPRIGHT,
  71         RotationData::BOTTOMRIGHT,
  72         RotationData::BASELINERIGHT
  73 };
  74
  75
  76 size_type const origins_array_size =
  77 sizeof(origins_array) / sizeof(origins_array[0]);
  78
  79 vector<external::RotationDataType> const
  80 all_origins(origins_array, origins_array + origins_array_size);
  81
  82 // These are the strings, corresponding to the above, that the GUI should
  83 // use. Note that they can/should be translated.
  84 char const * const origin_gui_strs[] = {
  85         N_("Default"),
  86         N_("Top left"), N_("Bottom left"), N_("Baseline left"),
  87         N_("Center"), N_("Top center"), N_("Bottom center"), N_("Baseline center"),
  88         N_("Top right"), N_("Bottom right"), N_("Baseline right")
  89 };
  90
  91 } // namespace anon
  92
  93
  94 GuiExternal::GuiExternal(GuiView & lv)
  95         : GuiDialog(lv, "external", qt_("External Material")), bbChanged_(false)
  96 {
  97         setupUi(this);
  98
  99         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
 100         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
 101         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
 102
 103         connect(displayCB, SIGNAL(toggled(bool)),
 104                 showCO, SLOT(setEnabled(bool)));
 105         connect(displayCB, SIGNAL(toggled(bool)),
 106                 displayscaleED, SLOT(setEnabled(bool)));
 107         connect(showCO, SIGNAL(activated(QString)),
 108                 this, SLOT(change_adaptor()));
 109         connect(originCO, SIGNAL(activated(int)),
 110                 this, SLOT(change_adaptor()));
 111         connect(aspectratioCB, SIGNAL(stateChanged(int)),
 112                 this, SLOT(change_adaptor()));
 113         connect(browsePB, SIGNAL(clicked()),
 114                 this, SLOT(browseClicked()));
 115         connect(embedCB, SIGNAL(toggled(bool)),
 116                 this, SLOT(change_adaptor()));
 117         connect(editPB, SIGNAL(clicked()),
 118                 this, SLOT(editClicked()));
 119         connect(externalCO, SIGNAL(activated(QString)),
 120                 this, SLOT(templateChanged()));
 121         connect(extraED, SIGNAL(textChanged(QString)),
 122                 this, SLOT(extraChanged(QString)));
 123         connect(extraFormatCO, SIGNAL(activated(QString)),
 124                 this, SLOT(formatChanged(QString)));
 125         connect(widthUnitCO, SIGNAL(activated(int)),
 126                 this, SLOT(widthUnitChanged()));
 127         connect(heightUnitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
 128                 this, SLOT(change_adaptor()));
 129         connect(displayCB, SIGNAL(stateChanged(int)),
 130                 this, SLOT(change_adaptor()));
 131         connect(displayscaleED, SIGNAL(textChanged(QString)),
 132                 this, SLOT(change_adaptor()));
 133         connect(angleED, SIGNAL(textChanged(QString)),
 134                 this, SLOT(change_adaptor()));
 135         connect(widthED, SIGNAL(textChanged(QString)),
 136                 this, SLOT(sizeChanged()));
 137         connect(heightED, SIGNAL(textChanged(QString)),
 138                 this, SLOT(sizeChanged()));
 139         connect(fileED, SIGNAL(textChanged(QString)),
 140                 this, SLOT(change_adaptor()));
 141         connect(clipCB, SIGNAL(stateChanged(int)),
 142                 this, SLOT(change_adaptor()));
 143         connect(getbbPB, SIGNAL(clicked()), this, SLOT(getbbClicked()));
 144         connect(xrED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 145         connect(ytED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 146         connect(xlED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 147         connect(ybED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 148         connect(draftCB, SIGNAL(clicked()), this, SLOT(change_adaptor()));
 149
 150         QIntValidator * validator = new QIntValidator(displayscaleED);
 151         validator->setBottom(1);
 152         displayscaleED->setValidator(validator);
 153
 154         angleED->setValidator(new QDoubleValidator(-360, 360, 2, angleED));
 155
 156         xlED->setValidator(new QIntValidator(xlED));
 157         ybED->setValidator(new QIntValidator(ybED));
 158         xrED->setValidator(new QIntValidator(xrED));
 159         ytED->setValidator(new QIntValidator(ytED));
 160
 161         widthED->setValidator(unsignedLengthValidator(widthED));
 162         heightED->setValidator(unsignedLengthValidator(heightED));
 163
 164         setFocusProxy(fileED);
 165
 166         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
 167
 168         bc().setOK(okPB);
 169         bc().setApply(applyPB);
 170         bc().setCancel(closePB);
 171
 172         bc().addReadOnly(fileED);
 173         bc().addReadOnly(browsePB);
 174         bc().addReadOnly(editPB);
 175         bc().addReadOnly(externalCO);
 176         bc().addReadOnly(draftCB);
 177         bc().addReadOnly(displayscaleED);
 178         bc().addReadOnly(showCO);
 179         bc().addReadOnly(displayCB);
 180         bc().addReadOnly(angleED);
 181         bc().addReadOnly(originCO);
 182         bc().addReadOnly(heightUnitCO);
 183         bc().addReadOnly(heightED);
 184         bc().addReadOnly(aspectratioCB);
 185         bc().addReadOnly(widthUnitCO);
 186         bc().addReadOnly(widthED);
 187         bc().addReadOnly(clipCB);
 188         bc().addReadOnly(getbbPB);
 189         bc().addReadOnly(ytED);
 190         bc().addReadOnly(xlED);
 191         bc().addReadOnly(xrED);
 192         bc().addReadOnly(ybED);
 193         bc().addReadOnly(extraFormatCO);
 194         bc().addReadOnly(extraED);
 195
 196         bc().addCheckedLineEdit(angleED, angleLA);
 197         bc().addCheckedLineEdit(displayscaleED, scaleLA);
 198         bc().addCheckedLineEdit(heightED, heightLA);
 199         bc().addCheckedLineEdit(widthED, widthLA);
 200         bc().addCheckedLineEdit(xlED, lbLA);
 201         bc().addCheckedLineEdit(ybED, lbLA);
 202         bc().addCheckedLineEdit(xrED, rtLA);
 203         bc().addCheckedLineEdit(ytED, rtLA);
 204         bc().addCheckedLineEdit(fileED, fileLA);
 205
 206         vector<string> templates = getTemplates();
 207
 208         for (vector<string>::const_iterator cit = templates.begin();
 209                 cit != templates.end(); ++cit) {
 210                 externalCO->addItem(qt_(*cit));
 211         }
 212
 213         // Fill the origins combo
 214         for (size_t i = 0; i != all_origins.size(); ++i)
 215                 originCO->addItem(qt_(origin_gui_strs[i]));
 216
 217         // Fill the width combo
 218         widthUnitCO->addItem(qt_("Scale%"));
 219         for (int i = 0; i < num_units; i++)
 220                 widthUnitCO->addItem(qt_(unit_name_gui[i]));
 221 }
 222
 223
 224 bool GuiExternal::activateAspectratio() const
 225 {
 226         if (widthUnitCO->currentIndex() == 0)
 227                 return false;
 228
 229         string const wstr = fromqstr(widthED->text());
 230         if (wstr.empty())
 231                 return false;
 232         bool const wIsDbl = isStrDbl(wstr);
 233         if (wIsDbl && float_equal(convert<double>(wstr), 0.0, 0.05))
 234                 return false;
 235         Length l;
 236         if (!wIsDbl && (!isValidLength(wstr, &l) || l.zero()))
 237                 return false;
 238
 239         string const hstr = fromqstr(heightED->text());
 240         if (hstr.empty())
 241                 return false;
 242         bool const hIsDbl = isStrDbl(hstr);
 243         if (hIsDbl && float_equal(convert<double>(hstr), 0.0, 0.05))
 244                 return false;
 245         if (!hIsDbl && (!isValidLength(hstr, &l) || l.zero()))
 246                 return false;
 247
 248         return true;
 249 }
 250
 251
 252 void GuiExternal::bbChanged()
 253 {
 254         bbChanged_ = true;
 255         changed();
 256 }
 257
 258
 259 void GuiExternal::browseClicked()
 260 {
 261         int const choice =  externalCO->currentIndex();
 262         QString const template_name = toqstr(getTemplate(choice).lyxName);
 263         QString const str = browse(fileED->text(), template_name);
 264         if (!str.isEmpty()) {
 265                 fileED->setText(str);
 266                 changed();
 267         }
 268 }
 269
 270
 271 void GuiExternal::change_adaptor()
 272 {
 273         changed();
 274 }
 275
 276
 277 void GuiExternal::editClicked()
 278 {
 279         editExternal();
 280 }
 281
 282
 283
 284 void GuiExternal::extraChanged(const QString& text)
 285 {
 286         string const format = fromqstr(extraFormatCO->currentText());
 287         extra_[format] = text;
 288         changed();
 289 }
 290
 291
 292 void GuiExternal::formatChanged(const QString& format)
 293 {
 294         extraED->setText(extra_[fromqstr(format)]);
 295 }
 296
 297
 298 void GuiExternal::getbbClicked()
 299 {
 300         getBB();
 301 }
 302
 303
 304 void GuiExternal::sizeChanged()
 305 {
 306         aspectratioCB->setEnabled(activateAspectratio());
 307         changed();
 308 }
 309
 310
 311 void GuiExternal::templateChanged()
 312 {
 313         updateTemplate();
 314         changed();
 315 }
 316
 317
 318 void GuiExternal::widthUnitChanged()
 319 {
 320         bool useHeight = (widthUnitCO->currentIndex() > 0);
 321
 322         if (useHeight)
 323                 widthED->setValidator(unsignedLengthValidator(widthED));
 324         else
 325                 widthED->setValidator(new QDoubleValidator(0, 1000, 2, widthED));
 326
 327         heightED->setEnabled(useHeight);
 328         heightUnitCO->setEnabled(useHeight);
 329         changed();
 330 }
 331
 332
 333 static Length::UNIT defaultUnit()
 334 {
 335         Length::UNIT default_unit = Length::CM;
 336         switch (lyxrc.default_papersize) {
 337         case PAPER_USLETTER:
 338         case PAPER_USLEGAL:
 339         case PAPER_USEXECUTIVE:
 340                 default_unit = Length::IN;
 341                 break;
 342         default:
 343                 break;
 344         }
 345         return default_unit;
 346 }
 347
 348
 349 static void setDisplay(
 350         QCheckBox & displayCB, QComboBox & showCO, QLineEdit & scaleED,
 351         external::DisplayType display, unsigned int scale, bool read_only)
 352 {
 353         int item = 0;
 354         switch (display) {
 355         case external::DefaultDisplay:
 356                 item = 0;
 357                 break;
 358         case external::MonochromeDisplay:
 359                 item = 1;
 360                 break;
 361         case external::GrayscaleDisplay:
 362                 item = 2;
 363                 break;
 364         case external::ColorDisplay:
 365                 item = 3;
 366                 break;
 367         case external::PreviewDisplay:
 368                 item = 4;
 369                 break;
 370         case external::NoDisplay:
 371                 item = 0;
 372                 break;
 373         }
 374
 375         showCO.setCurrentIndex(item);
 376         bool const no_display = display == external::NoDisplay;
 377         showCO.setEnabled(!no_display && !read_only);
 378         displayCB.setChecked(!no_display);
 379         scaleED.setEnabled(!no_display && !read_only);
 380         scaleED.setText(QString::number(scale));
 381 }
 382
 383
 384 static void getDisplay(external::DisplayType & display,
 385                 unsigned int & scale,
 386                 QCheckBox const & displayCB,
 387                 QComboBox const & showCO,
 388                 QLineEdit const & scaleED)
 389 {
 390         switch (showCO.currentIndex()) {
 391         case 0:
 392                 display = external::DefaultDisplay;
 393                 break;
 394         case 1:
 395                 display = external::MonochromeDisplay;
 396                 break;
 397         case 2:
 398                 display = external::GrayscaleDisplay;
 399                 break;
 400         case 3:
 401                 display = external::ColorDisplay;
 402                 break;
 403         case 4:
 404                 display = external::PreviewDisplay;
 405                 break;
 406         }
 407
 408         if (!displayCB.isChecked())
 409                 display = external::NoDisplay;
 410
 411         scale = scaleED.text().toInt();
 412 }
 413
 414
 415 static void setRotation(QLineEdit & angleED, QComboBox & originCO,
 416         external::RotationData const & data)
 417 {
 418         originCO.setCurrentIndex(int(data.origin()));
 419         angleED.setText(toqstr(data.angle));
 420 }
 421
 422
 423 static void getRotation(external::RotationData & data,
 424         QLineEdit const & angleED, QComboBox const & originCO)
 425 {
 426         typedef external::RotationData::OriginType OriginType;
 427
 428         data.origin(static_cast<OriginType>(originCO.currentIndex()));
 429         data.angle = fromqstr(angleED.text());
 430 }
 431
 432
 433 static void setSize(QLineEdit & widthED, QComboBox & widthUnitCO,
 434         QLineEdit & heightED, LengthCombo & heightUnitCO,
 435         QCheckBox & aspectratioCB,
 436         external::ResizeData const & data)
 437 {
 438         bool using_scale = data.usingScale();
 439         string scale = data.scale;
 440         if (data.no_resize()) {
 441                 // Everything is zero, so default to this!
 442                 using_scale = true;
 443                 scale = "100";
 444         }
 445
 446         if (using_scale) {
 447                 widthED.setText(toqstr(scale));
 448                 widthUnitCO.setCurrentIndex(0);
 449         } else {
 450                 widthED.setText(QString::number(data.width.value()));
 451                 // Because 'Scale' is position 0...
 452                 // Note also that width cannot be zero here, so
 453                 // we don't need to worry about the default unit.
 454                 widthUnitCO.setCurrentIndex(data.width.unit() + 1);
 455         }
 456
 457         string const h = data.height.zero() ? string() : data.height.asString();
 458         Length::UNIT default_unit = data.width.zero() ?
 459                 defaultUnit() : data.width.unit();
 460         lengthToWidgets(&heightED, &heightUnitCO, h, default_unit);
 461
 462         heightED.setEnabled(!using_scale);
 463         heightUnitCO.setEnabled(!using_scale);
 464
 465         aspectratioCB.setChecked(data.keepAspectRatio);
 466
 467         bool const disable_aspectRatio = using_scale ||
 468                 data.width.zero() || data.height.zero();
 469         aspectratioCB.setEnabled(!disable_aspectRatio);
 470 }
 471
 472
 473 static void getSize(external::ResizeData & data,
 474         QLineEdit const & widthED, QComboBox const & widthUnitCO,
 475         QLineEdit const & heightED, LengthCombo const & heightUnitCO,
 476         QCheckBox const & aspectratioCB)
 477 {
 478         string const width = fromqstr(widthED.text());
 479
 480         if (widthUnitCO.currentIndex() > 0) {
 481                 // Subtract one, because scale is 0.
 482                 int const unit = widthUnitCO.currentIndex() - 1;
 483
 484                 Length w;
 485                 if (isValidLength(width, &w))
 486                         data.width = w;
 487                 else if (isStrDbl(width))
 488                         data.width = Length(convert<double>(width),
 489                                            static_cast<Length::UNIT>(unit));
 490                 else
 491                         data.width = Length();
 492
 493                 data.scale = string();
 494
 495         } else {
 496                 // scaling instead of a width
 497                 data.scale = width;
 498                 data.width = Length();
 499         }
 500
 501         data.height = Length(widgetsToLength(&heightED, &heightUnitCO));
 502
 503         data.keepAspectRatio = aspectratioCB.isChecked();
 504 }
 505
 506
 507 void setCrop(QCheckBox & clipCB,
 508         QLineEdit & xlED, QLineEdit & ybED,
 509         QLineEdit & xrED, QLineEdit & ytED,
 510         external::ClipData const & data)
 511 {
 512         clipCB.setChecked(data.clip);
 513         graphics::BoundingBox const & bbox = data.bbox;
 514         xlED.setText(QString::number(bbox.xl));
 515         ybED.setText(QString::number(bbox.yb));
 516         xrED.setText(QString::number(bbox.xr));
 517         ytED.setText(QString::number(bbox.yt));
 518 }
 519
 520
 521 static void getCrop(external::ClipData & data,
 522         QCheckBox const & clipCB,
 523         QLineEdit const & xlED, QLineEdit const & ybED,
 524         QLineEdit const & xrED, QLineEdit const & ytED,
 525         bool bb_changed)
 526 {
 527         data.clip = clipCB.isChecked();
 528
 529         if (!bb_changed)
 530                 return;
 531
 532         data.bbox.xl = xlED.text().toInt();
 533         data.bbox.yb = ybED.text().toInt();
 534         data.bbox.xr = xrED.text().toInt();
 535         data.bbox.yt = ytED.text().toInt();
 536 }
 537
 538
 539 static void getExtra(external::ExtraData & data,
 540               GuiExternal::MapType const & extra)
 541 {
 542         typedef GuiExternal::MapType MapType;
 543         MapType::const_iterator it = extra.begin();
 544         MapType::const_iterator const end = extra.end();
 545         for (; it != end; ++it)
 546                 data.set(it->first, trim(fromqstr(it->second)));
 547 }
 548
 549
 550 void GuiExternal::updateContents()
 551 {
 552         tab->setCurrentIndex(0);
 553
 554         string const name =
 555                 params_.filename.outputFilename(fromqstr(bufferFilepath()));
 556         fileED->setText(toqstr(name));
 557         embedCB->setCheckState(params_.filename.embedded() ? Qt::Checked : Qt::Unchecked);
 558
 559         externalCO->setCurrentIndex(getTemplateNumber(params_.templatename()));
 560         updateTemplate();
 561
 562         draftCB->setChecked(params_.draft);
 563
 564         setDisplay(*displayCB, *showCO, *displayscaleED,
 565                    params_.display, params_.lyxscale, isBufferReadonly());
 566
 567         setRotation(*angleED, *originCO, params_.rotationdata);
 568
 569         setSize(*widthED, *widthUnitCO, *heightED, *heightUnitCO,
 570                 *aspectratioCB, params_.resizedata);
 571
 572         setCrop(*clipCB, *xlED, *ybED, *xrED, *ytED, params_.clipdata);
 573         bbChanged_ = !params_.clipdata.bbox.empty();
 574
 575         isValid();
 576 }
 577
 578
 579 void GuiExternal::updateTemplate()
 580 {
 581         external::Template templ = getTemplate(externalCO->currentIndex());
 582         externalTB->setPlainText(qt_(templ.helpText));
 583
 584         // Ascertain which (if any) transformations the template supports
 585         // and disable tabs hosting unsupported transforms.
 586         typedef vector<external::TransformID> TransformIDs;
 587         TransformIDs const transformIds = templ.transformIds;
 588         TransformIDs::const_iterator tr_begin = transformIds.begin();
 589         TransformIDs::const_iterator const tr_end = transformIds.end();
 590
 591         bool found = std::find(tr_begin, tr_end, external::Rotate) != tr_end;
 592         tab->setTabEnabled(tab->indexOf(rotatetab), found);
 593         found = std::find(tr_begin, tr_end, external::Resize) != tr_end;
 594         tab->setTabEnabled(tab->indexOf(scaletab), found);
 595
 596         found = std::find(tr_begin, tr_end, external::Clip) != tr_end;
 597         tab->setTabEnabled(tab->indexOf(croptab), found);
 598
 599         found = std::find(tr_begin, tr_end, external::Extra) != tr_end;
 600         tab->setTabEnabled(tab->indexOf(optionstab), found);
 601
 602         if (!found)
 603                 return;
 604
 605         // Ascertain whether the template has any formats supporting
 606         // the 'Extra' option
 607         extra_.clear();
 608         extraED->clear();
 609         extraFormatCO->clear();
 610
 611         external::Template::Formats::const_iterator it  = templ.formats.begin();
 612         external::Template::Formats::const_iterator end = templ.formats.end();
 613         for (; it != end; ++it) {
 614                 if (it->second.option_transformers.find(external::Extra) ==
 615                     it->second.option_transformers.end())
 616                         continue;
 617                 string const format = it->first;
 618                 string const opt = params_.extradata.get(format);
 619                 extraFormatCO->addItem(toqstr(format));
 620                 extra_[format] = toqstr(opt);
 621         }
 622
 623         bool const enabled = extraFormatCO->count()  > 0;
 624
 625         tab->setTabEnabled(
 626                 tab->indexOf(optionstab), enabled);
 627         extraED->setEnabled(enabled && !isBufferReadonly());
 628         extraFormatCO->setEnabled(enabled);
 629
 630         if (enabled) {
 631                 extraFormatCO->setCurrentIndex(0);
 632                 extraED->setText(extra_[fromqstr(extraFormatCO->currentText())]);
 633         }
 634 }
 635
 636
 637 void GuiExternal::applyView()
 638 {
 639         params_.filename.set(fromqstr(fileED->text()), fromqstr(bufferFilepath()));
 640
 641         try {
 642                 Buffer & buf = buffer();
 643                 EmbeddedFile file(fromqstr(fileED->text()), buf.filePath());
 644                 file.setEmbed(embedCB->checkState() == Qt::Checked);
 645                 // move file around if needed, an exception may be raised.
 646                 file.enable(buf.embedded(), buf, true);
 647                 // if things are OK..., embed params_.filename
 648                 params_.filename.setEmbed(file.embedded());
 649         } catch (ExceptionMessage const & message) {
 650                 Alert::error(message.title_, message.details_);
 651                 // failed to embed
 652                 params_.filename.setEmbed(false);
 653         }
 654
 655         params_.settemplate(getTemplate(externalCO->currentIndex()).lyxName);
 656
 657         params_.draft = draftCB->isChecked();
 658
 659         getDisplay(params_.display, params_.lyxscale,
 660                    *displayCB, *showCO,
 661                    *displayscaleED);
 662
 663         if (tab->isTabEnabled(tab->indexOf(rotatetab)))
 664                 getRotation(params_.rotationdata, *angleED, *originCO);
 665
 666         if (tab->isTabEnabled(tab->indexOf(scaletab)))
 667                 getSize(params_.resizedata, *widthED, *widthUnitCO,
 668                         *heightED, *heightUnitCO, *aspectratioCB);
 669
 670         if (tab->isTabEnabled(tab->indexOf(croptab)))
 671                 getCrop(params_.clipdata, *clipCB, *xlED, *ybED,
 672                         *xrED, *ytED, bbChanged_);
 673
 674         if (tab->isTabEnabled(tab->indexOf(optionstab)))
 675                 getExtra(params_.extradata, extra_);
 676 }
 677
 678
 679 void GuiExternal::getBB()
 680 {
 681         xlED->setText("0");
 682         ybED->setText("0");
 683         xrED->setText("0");
 684         ytED->setText("0");
 685
 686         string const filename = fromqstr(fileED->text());
 687         if (filename.empty())
 688                 return;
 689
 690         string const bb = readBB(filename);
 691         if (bb.empty())
 692                 return;
 693
 694         xlED->setText(toqstr(token(bb, ' ', 0)));
 695         ybED->setText(toqstr(token(bb, ' ', 1)));
 696         xrED->setText(toqstr(token(bb, ' ', 2)));
 697         ytED->setText(toqstr(token(bb, ' ', 3)));
 698
 699         bbChanged_ = false;
 700 }
 701
 702
 703 bool GuiExternal::initialiseParams(string const & data)
 704 {
 705         InsetExternal::string2params(data, buffer(), params_);
 706         return true;
 707 }
 708
 709
 710 void GuiExternal::clearParams()
 711 {
 712         params_ = InsetExternalParams();
 713 }
 714
 715
 716 void GuiExternal::dispatchParams()
 717 {
 718         string const lfun = InsetExternal::params2string(params_, buffer());
 719         dispatch(FuncRequest(getLfun(), lfun));
 720 }
 721
 722
 723 void GuiExternal::editExternal()
 724 {
 725         applyView();
 726         string const lfun = InsetExternal::params2string(params_, buffer());
 727         dispatch(FuncRequest(LFUN_EXTERNAL_EDIT, lfun));
 728 }
 729
 730
 731 vector<string> const GuiExternal::getTemplates() const
 732 {
 733         vector<string> result;
 734
 735         external::TemplateManager::Templates::const_iterator i1, i2;
 736         i1 = external::TemplateManager::get().getTemplates().begin();
 737         i2 = external::TemplateManager::get().getTemplates().end();
 738
 739         for (; i1 != i2; ++i1) {
 740                 result.push_back(i1->second.lyxName);
 741         }
 742         return result;
 743 }
 744
 745
 746 int GuiExternal::getTemplateNumber(string const & name) const
 747 {
 748         external::TemplateManager::Templates::const_iterator i1, i2;
 749         i1 = external::TemplateManager::get().getTemplates().begin();
 750         i2 = external::TemplateManager::get().getTemplates().end();
 751         for (int i = 0; i1 != i2; ++i1, ++i) {
 752                 if (i1->second.lyxName == name)
 753                         return i;
 754         }
 755
 756         // we can get here if a LyX document has a template not installed
 757         // on this machine.
 758         return -1;
 759 }
 760
 761
 762 external::Template GuiExternal::getTemplate(int i) const
 763 {
 764         external::TemplateManager::Templates::const_iterator i1
 765                 = external::TemplateManager::get().getTemplates().begin();
 766
 767         advance(i1, i);
 768
 769         return i1->second;
 770 }
 771
 772
 773 string const
 774 GuiExternal::getTemplateFilters(string const & template_name) const
 775 {
 776         /// Determine the template file extension
 777         external::TemplateManager const & etm =
 778                 external::TemplateManager::get();
 779         external::Template const * const et_ptr =
 780                 etm.getTemplateByName(template_name);
 781
 782         if (et_ptr)
 783                 return et_ptr->fileRegExp;
 784
 785         return string();
 786 }
 787
 788
 789 QString GuiExternal::browse(QString const & input,
 790                                      QString const & template_name) const
 791 {
 792         QString const title = qt_("Select external file");
 793         QString const bufpath = bufferFilepath();
 794         FileFilterList const filter =
 795                 FileFilterList(from_utf8(getTemplateFilters(fromqstr(template_name))));
 796
 797         QString const label1 = qt_("Documents|#o#O");
 798         QString const dir1 = toqstr(lyxrc.document_path);
 799
 800         return browseRelFile(input, bufpath, title, filter, false, label1, dir1);
 801 }
 802
 803
 804 string const GuiExternal::readBB(string const & file)
 805 {
 806         FileName const abs_file(makeAbsPath(file, fromqstr(bufferFilepath())));
 807
 808         // try to get it from the file, if possible. Zipped files are
 809         // unzipped in the readBB_from_PSFile-Function
 810         string const bb = readBB_from_PSFile(abs_file);
 811         if (!bb.empty())
 812                 return bb;
 813
 814         // we don't, so ask the Graphics Cache if it has loaded the file
 815         int width = 0;
 816         int height = 0;
 817
 818         graphics::Cache & gc = graphics::Cache::get();
 819         if (gc.inCache(abs_file)) {
 820                 graphics::Image const * image = gc.item(abs_file)->image();
 821
 822                 if (image) {
 823                         width  = image->width();
 824                         height = image->height();
 825                 }
 826         }
 827
 828         return ("0 0 " + convert<string>(width) + ' ' + convert<string>(height));
 829 }
 830
 831
 832 Dialog * createGuiExternal(GuiView & lv) { return new GuiExternal(lv); }
 833
 834
 835 } // namespace frontend
 836 } // namespace lyx
 837
 838 #include "GuiExternal_moc.cpp"