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"), bbChanged_(false)
  93 {
  94         setupUi(this);
  95         setViewTitle(_("External Material"));
  96
  97         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  98         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  99         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
 100
 101         connect(displayCB, SIGNAL(toggled(bool)),
 102                 showCO, SLOT(setEnabled(bool)));
 103         connect(displayCB, SIGNAL(toggled(bool)),
 104                 displayscaleED, SLOT(setEnabled(bool)));
 105         connect(showCO, SIGNAL(activated(QString)),
 106                 this, SLOT(change_adaptor()));
 107         connect(originCO, SIGNAL(activated(int)),
 108                 this, SLOT(change_adaptor()));
 109         connect(aspectratioCB, SIGNAL(stateChanged(int)),
 110                 this, SLOT(change_adaptor()));
 111         connect(browsePB, SIGNAL(clicked()),
 112                 this, SLOT(browseClicked()));
 113         connect(editPB, SIGNAL(clicked()),
 114                 this, SLOT(editClicked()));
 115         connect(externalCO, SIGNAL(activated(QString)),
 116                 this, SLOT(templateChanged()));
 117         connect(extraED, SIGNAL(textChanged(QString)),
 118                 this, SLOT(extraChanged(QString)));
 119         connect(extraFormatCO, SIGNAL(activated(QString)),
 120                 this, SLOT(formatChanged(QString)));
 121         connect(widthUnitCO, SIGNAL(activated(int)),
 122                 this, SLOT(widthUnitChanged()));
 123         connect(heightUnitCO, SIGNAL(selectionChanged(lyx::Length::UNIT)),
 124                 this, SLOT(change_adaptor()));
 125         connect(displayCB, SIGNAL(stateChanged(int)),
 126                 this, SLOT(change_adaptor()));
 127         connect(displayscaleED, SIGNAL(textChanged(QString)),
 128                 this, SLOT(change_adaptor()));
 129         connect(angleED, SIGNAL(textChanged(QString)),
 130                 this, SLOT(change_adaptor()));
 131         connect(widthED, SIGNAL(textChanged(QString)),
 132                 this, SLOT(sizeChanged()));
 133         connect(heightED, SIGNAL(textChanged(QString)),
 134                 this, SLOT(sizeChanged()));
 135         connect(fileED, SIGNAL(textChanged(QString)),
 136                 this, SLOT(change_adaptor()));
 137         connect(clipCB, SIGNAL(stateChanged(int)),
 138                 this, SLOT(change_adaptor()));
 139         connect(getbbPB, SIGNAL(clicked()), this, SLOT(getbbClicked()));
 140         connect(xrED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 141         connect(ytED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 142         connect(xlED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 143         connect(ybED, SIGNAL(textChanged(QString)), this, SLOT(bbChanged()));
 144         connect(draftCB, SIGNAL(clicked()), this, SLOT(change_adaptor()));
 145
 146         QIntValidator * validator = new QIntValidator(displayscaleED);
 147         validator->setBottom(1);
 148         displayscaleED->setValidator(validator);
 149
 150         angleED->setValidator(new QDoubleValidator(-360, 360, 2, angleED));
 151
 152         xlED->setValidator(new QIntValidator(xlED));
 153         ybED->setValidator(new QIntValidator(ybED));
 154         xrED->setValidator(new QIntValidator(xrED));
 155         ytED->setValidator(new QIntValidator(ytED));
 156
 157         widthED->setValidator(unsignedLengthValidator(widthED));
 158         heightED->setValidator(unsignedLengthValidator(heightED));
 159
 160         setFocusProxy(fileED);
 161
 162         bc().setPolicy(ButtonPolicy::NoRepeatedApplyReadOnlyPolicy);
 163
 164         bc().setOK(okPB);
 165         bc().setApply(applyPB);
 166         bc().setCancel(closePB);
 167
 168         bc().addReadOnly(fileED);
 169         bc().addReadOnly(browsePB);
 170         bc().addReadOnly(editPB);
 171         bc().addReadOnly(externalCO);
 172         bc().addReadOnly(draftCB);
 173         bc().addReadOnly(displayscaleED);
 174         bc().addReadOnly(showCO);
 175         bc().addReadOnly(displayCB);
 176         bc().addReadOnly(angleED);
 177         bc().addReadOnly(originCO);
 178         bc().addReadOnly(heightUnitCO);
 179         bc().addReadOnly(heightED);
 180         bc().addReadOnly(aspectratioCB);
 181         bc().addReadOnly(widthUnitCO);
 182         bc().addReadOnly(widthED);
 183         bc().addReadOnly(clipCB);
 184         bc().addReadOnly(getbbPB);
 185         bc().addReadOnly(ytED);
 186         bc().addReadOnly(xlED);
 187         bc().addReadOnly(xrED);
 188         bc().addReadOnly(ybED);
 189         bc().addReadOnly(extraFormatCO);
 190         bc().addReadOnly(extraED);
 191
 192         bc().addCheckedLineEdit(angleED, angleLA);
 193         bc().addCheckedLineEdit(displayscaleED, scaleLA);
 194         bc().addCheckedLineEdit(heightED, heightLA);
 195         bc().addCheckedLineEdit(widthED, widthLA);
 196         bc().addCheckedLineEdit(xlED, lbLA);
 197         bc().addCheckedLineEdit(ybED, lbLA);
 198         bc().addCheckedLineEdit(xrED, rtLA);
 199         bc().addCheckedLineEdit(ytED, rtLA);
 200         bc().addCheckedLineEdit(fileED, fileLA);
 201
 202         vector<string> templates = getTemplates();
 203
 204         for (vector<string>::const_iterator cit = templates.begin();
 205                 cit != templates.end(); ++cit) {
 206                 externalCO->addItem(qt_(*cit));
 207         }
 208
 209         // Fill the origins combo
 210         for (size_t i = 0; i != all_origins.size(); ++i)
 211                 originCO->addItem(qt_(origin_gui_strs[i]));
 212
 213         // Fill the width combo
 214         widthUnitCO->addItem(qt_("Scale%"));
 215         for (int i = 0; i < num_units; i++)
 216                 widthUnitCO->addItem(qt_(unit_name_gui[i]));
 217 }
 218
 219
 220 bool GuiExternal::activateAspectratio() const
 221 {
 222         if (widthUnitCO->currentIndex() == 0)
 223                 return false;
 224
 225         string const wstr = fromqstr(widthED->text());
 226         if (wstr.empty())
 227                 return false;
 228         bool const wIsDbl = isStrDbl(wstr);
 229         if (wIsDbl && float_equal(convert<double>(wstr), 0.0, 0.05))
 230                 return false;
 231         Length l;
 232         if (!wIsDbl && (!isValidLength(wstr, &l) || l.zero()))
 233                 return false;
 234
 235         string const hstr = fromqstr(heightED->text());
 236         if (hstr.empty())
 237                 return false;
 238         bool const hIsDbl = isStrDbl(hstr);
 239         if (hIsDbl && float_equal(convert<double>(hstr), 0.0, 0.05))
 240                 return false;
 241         if (!hIsDbl && (!isValidLength(hstr, &l) || l.zero()))
 242                 return false;
 243
 244         return true;
 245 }
 246
 247
 248 void GuiExternal::bbChanged()
 249 {
 250         bbChanged_ = true;
 251         changed();
 252 }
 253
 254
 255 void GuiExternal::browseClicked()
 256 {
 257         int const choice =  externalCO->currentIndex();
 258         docstring const template_name = from_utf8(getTemplate(choice).lyxName);
 259         docstring const str = browse(qstring_to_ucs4(fileED->text()), template_name);
 260         if (!str.empty()) {
 261                 fileED->setText(toqstr(str));
 262                 changed();
 263         }
 264 }
 265
 266
 267 void GuiExternal::change_adaptor()
 268 {
 269         changed();
 270 }
 271
 272
 273 void GuiExternal::closeEvent(QCloseEvent * e)
 274 {
 275         slotClose();
 276         e->accept();
 277 }
 278
 279
 280 void GuiExternal::editClicked()
 281 {
 282         editExternal();
 283 }
 284
 285
 286
 287 void GuiExternal::extraChanged(const QString& text)
 288 {
 289         string const format = fromqstr(extraFormatCO->currentText());
 290         extra_[format] = text;
 291         changed();
 292 }
 293
 294
 295 void GuiExternal::formatChanged(const QString& format)
 296 {
 297         extraED->setText(extra_[fromqstr(format)]);
 298 }
 299
 300
 301 void GuiExternal::getbbClicked()
 302 {
 303         getBB();
 304 }
 305
 306
 307 void GuiExternal::sizeChanged()
 308 {
 309         aspectratioCB->setEnabled(activateAspectratio());
 310         changed();
 311 }
 312
 313
 314 void GuiExternal::templateChanged()
 315 {
 316         updateTemplate();
 317         changed();
 318 }
 319
 320
 321 void GuiExternal::widthUnitChanged()
 322 {
 323         bool useHeight = (widthUnitCO->currentIndex() > 0);
 324
 325         if (useHeight)
 326                 widthED->setValidator(unsignedLengthValidator(widthED));
 327         else
 328                 widthED->setValidator(new QDoubleValidator(0, 1000, 2, widthED));
 329
 330         heightED->setEnabled(useHeight);
 331         heightUnitCO->setEnabled(useHeight);
 332         changed();
 333 }
 334
 335
 336 static Length::UNIT defaultUnit()
 337 {
 338         Length::UNIT default_unit = Length::CM;
 339         switch (lyxrc.default_papersize) {
 340         case PAPER_USLETTER:
 341         case PAPER_USLEGAL:
 342         case PAPER_USEXECUTIVE:
 343                 default_unit = Length::IN;
 344                 break;
 345         default:
 346                 break;
 347         }
 348         return default_unit;
 349 }
 350
 351
 352 static void setDisplay(
 353         QCheckBox & displayCB, QComboBox & showCO, QLineEdit & scaleED,
 354         external::DisplayType display, unsigned int scale, bool read_only)
 355 {
 356         int item = 0;
 357         switch (display) {
 358         case external::DefaultDisplay:
 359                 item = 0;
 360                 break;
 361         case external::MonochromeDisplay:
 362                 item = 1;
 363                 break;
 364         case external::GrayscaleDisplay:
 365                 item = 2;
 366                 break;
 367         case external::ColorDisplay:
 368                 item = 3;
 369                 break;
 370         case external::PreviewDisplay:
 371                 item = 4;
 372                 break;
 373         case external::NoDisplay:
 374                 item = 0;
 375                 break;
 376         }
 377
 378         showCO.setCurrentIndex(item);
 379         bool const no_display = display == external::NoDisplay;
 380         showCO.setEnabled(!no_display && !read_only);
 381         displayCB.setChecked(!no_display);
 382         scaleED.setEnabled(!no_display && !read_only);
 383         scaleED.setText(QString::number(scale));
 384 }
 385
 386
 387 static void getDisplay(external::DisplayType & display,
 388                 unsigned int & scale,
 389                 QCheckBox const & displayCB,
 390                 QComboBox const & showCO,
 391                 QLineEdit const & scaleED)
 392 {
 393         switch (showCO.currentIndex()) {
 394         case 0:
 395                 display = external::DefaultDisplay;
 396                 break;
 397         case 1:
 398                 display = external::MonochromeDisplay;
 399                 break;
 400         case 2:
 401                 display = external::GrayscaleDisplay;
 402                 break;
 403         case 3:
 404                 display = external::ColorDisplay;
 405                 break;
 406         case 4:
 407                 display = external::PreviewDisplay;
 408                 break;
 409         }
 410
 411         if (!displayCB.isChecked())
 412                 display = external::NoDisplay;
 413
 414         scale = scaleED.text().toInt();
 415 }
 416
 417
 418 static void setRotation(QLineEdit & angleED, QComboBox & originCO,
 419         external::RotationData const & data)
 420 {
 421         originCO.setCurrentIndex(int(data.origin()));
 422         angleED.setText(toqstr(data.angle));
 423 }
 424
 425
 426 static void getRotation(external::RotationData & data,
 427         QLineEdit const & angleED, QComboBox const & originCO)
 428 {
 429         typedef external::RotationData::OriginType OriginType;
 430
 431         data.origin(static_cast<OriginType>(originCO.currentIndex()));
 432         data.angle = fromqstr(angleED.text());
 433 }
 434
 435
 436 static void setSize(QLineEdit & widthED, QComboBox & widthUnitCO,
 437         QLineEdit & heightED, LengthCombo & heightUnitCO,
 438         QCheckBox & aspectratioCB,
 439         external::ResizeData const & data)
 440 {
 441         bool using_scale = data.usingScale();
 442         string scale = data.scale;
 443         if (data.no_resize()) {
 444                 // Everything is zero, so default to this!
 445                 using_scale = true;
 446                 scale = "100";
 447         }
 448
 449         if (using_scale) {
 450                 widthED.setText(toqstr(scale));
 451                 widthUnitCO.setCurrentIndex(0);
 452         } else {
 453                 widthED.setText(QString::number(data.width.value()));
 454                 // Because 'Scale' is position 0...
 455                 // Note also that width cannot be zero here, so
 456                 // we don't need to worry about the default unit.
 457                 widthUnitCO.setCurrentIndex(data.width.unit() + 1);
 458         }
 459
 460         string const h = data.height.zero() ? string() : data.height.asString();
 461         Length::UNIT default_unit = data.width.zero() ?
 462                 defaultUnit() : data.width.unit();
 463         lengthToWidgets(&heightED, &heightUnitCO, h, default_unit);
 464
 465         heightED.setEnabled(!using_scale);
 466         heightUnitCO.setEnabled(!using_scale);
 467
 468         aspectratioCB.setChecked(data.keepAspectRatio);
 469
 470         bool const disable_aspectRatio = using_scale ||
 471                 data.width.zero() || data.height.zero();
 472         aspectratioCB.setEnabled(!disable_aspectRatio);
 473 }
 474
 475
 476 static void getSize(external::ResizeData & data,
 477         QLineEdit const & widthED, QComboBox const & widthUnitCO,
 478         QLineEdit const & heightED, LengthCombo const & heightUnitCO,
 479         QCheckBox const & aspectratioCB)
 480 {
 481         string const width = fromqstr(widthED.text());
 482
 483         if (widthUnitCO.currentIndex() > 0) {
 484                 // Subtract one, because scale is 0.
 485                 int const unit = widthUnitCO.currentIndex() - 1;
 486
 487                 Length w;
 488                 if (isValidLength(width, &w))
 489                         data.width = w;
 490                 else if (isStrDbl(width))
 491                         data.width = Length(convert<double>(width),
 492                                            static_cast<Length::UNIT>(unit));
 493                 else
 494                         data.width = Length();
 495
 496                 data.scale = string();
 497
 498         } else {
 499                 // scaling instead of a width
 500                 data.scale = width;
 501                 data.width = Length();
 502         }
 503
 504         data.height = Length(widgetsToLength(&heightED, &heightUnitCO));
 505
 506         data.keepAspectRatio = aspectratioCB.isChecked();
 507 }
 508
 509
 510 void setCrop(QCheckBox & clipCB,
 511         QLineEdit & xlED, QLineEdit & ybED,
 512         QLineEdit & xrED, QLineEdit & ytED,
 513         external::ClipData const & data)
 514 {
 515         clipCB.setChecked(data.clip);
 516         graphics::BoundingBox const & bbox = data.bbox;
 517         xlED.setText(QString::number(bbox.xl));
 518         ybED.setText(QString::number(bbox.yb));
 519         xrED.setText(QString::number(bbox.xr));
 520         ytED.setText(QString::number(bbox.yt));
 521 }
 522
 523
 524 static void getCrop(external::ClipData & data,
 525         QCheckBox const & clipCB,
 526         QLineEdit const & xlED, QLineEdit const & ybED,
 527         QLineEdit const & xrED, QLineEdit const & ytED,
 528         bool bb_changed)
 529 {
 530         data.clip = clipCB.isChecked();
 531
 532         if (!bb_changed)
 533                 return;
 534
 535         data.bbox.xl = xlED.text().toInt();
 536         data.bbox.yb = ybED.text().toInt();
 537         data.bbox.xr = xrED.text().toInt();
 538         data.bbox.yt = ytED.text().toInt();
 539 }
 540
 541
 542 static void getExtra(external::ExtraData & data,
 543               GuiExternal::MapType const & extra)
 544 {
 545         typedef GuiExternal::MapType MapType;
 546         MapType::const_iterator it = extra.begin();
 547         MapType::const_iterator const end = extra.end();
 548         for (; it != end; ++it)
 549                 data.set(it->first, trim(fromqstr(it->second)));
 550 }
 551
 552
 553 void GuiExternal::updateContents()
 554 {
 555         tab->setCurrentIndex(0);
 556
 557         string const name =
 558                 params_.filename.outputFilename(bufferFilepath());
 559         fileED->setText(toqstr(name));
 560
 561         externalCO->setCurrentIndex(getTemplateNumber(params_.templatename()));
 562         updateTemplate();
 563
 564         draftCB->setChecked(params_.draft);
 565
 566         setDisplay(*displayCB, *showCO, *displayscaleED,
 567                    params_.display, params_.lyxscale, isBufferReadonly());
 568
 569         setRotation(*angleED, *originCO, params_.rotationdata);
 570
 571         setSize(*widthED, *widthUnitCO, *heightED, *heightUnitCO,
 572                 *aspectratioCB, params_.resizedata);
 573
 574         setCrop(*clipCB, *xlED, *ybED, *xrED, *ytED, params_.clipdata);
 575         bbChanged_ = !params_.clipdata.bbox.empty();
 576
 577         isValid();
 578 }
 579
 580
 581 void GuiExternal::updateTemplate()
 582 {
 583         external::Template templ = getTemplate(externalCO->currentIndex());
 584         externalTB->setPlainText(qt_(templ.helpText));
 585
 586         // Ascertain which (if any) transformations the template supports
 587         // and disable tabs hosting unsupported transforms.
 588         typedef vector<external::TransformID> TransformIDs;
 589         TransformIDs const transformIds = templ.transformIds;
 590         TransformIDs::const_iterator tr_begin = transformIds.begin();
 591         TransformIDs::const_iterator const tr_end = transformIds.end();
 592
 593         bool found = std::find(tr_begin, tr_end, external::Rotate) != tr_end;
 594         tab->setTabEnabled(tab->indexOf(rotatetab), found);
 595         found = std::find(tr_begin, tr_end, external::Resize) != tr_end;
 596         tab->setTabEnabled(tab->indexOf(scaletab), found);
 597
 598         found = std::find(tr_begin, tr_end, external::Clip) != tr_end;
 599         tab->setTabEnabled(tab->indexOf(croptab), found);
 600
 601         found = std::find(tr_begin, tr_end, external::Extra) != tr_end;
 602         tab->setTabEnabled(tab->indexOf(optionstab), found);
 603
 604         if (!found)
 605                 return;
 606
 607         // Ascertain whether the template has any formats supporting
 608         // the 'Extra' option
 609         extra_.clear();
 610         extraED->clear();
 611         extraFormatCO->clear();
 612
 613         external::Template::Formats::const_iterator it  = templ.formats.begin();
 614         external::Template::Formats::const_iterator end = templ.formats.end();
 615         for (; it != end; ++it) {
 616                 if (it->second.option_transformers.find(external::Extra) ==
 617                     it->second.option_transformers.end())
 618                         continue;
 619                 string const format = it->first;
 620                 string const opt = params_.extradata.get(format);
 621                 extraFormatCO->addItem(toqstr(format));
 622                 extra_[format] = toqstr(opt);
 623         }
 624
 625         bool const enabled = extraFormatCO->count()  > 0;
 626
 627         tab->setTabEnabled(
 628                 tab->indexOf(optionstab), enabled);
 629         extraED->setEnabled(enabled && !isBufferReadonly());
 630         extraFormatCO->setEnabled(enabled);
 631
 632         if (enabled) {
 633                 extraFormatCO->setCurrentIndex(0);
 634                 extraED->setText(extra_[fromqstr(extraFormatCO->currentText())]);
 635         }
 636 }
 637
 638
 639 void GuiExternal::applyView()
 640 {
 641         params_.filename.set(fromqstr(fileED->text()), bufferFilepath());
 642
 643         params_.settemplate(getTemplate(externalCO->currentIndex()).lyxName);
 644
 645         params_.draft = draftCB->isChecked();
 646
 647         getDisplay(params_.display, params_.lyxscale,
 648                    *displayCB, *showCO,
 649                    *displayscaleED);
 650
 651         if (tab->isTabEnabled(tab->indexOf(rotatetab)))
 652                 getRotation(params_.rotationdata, *angleED, *originCO);
 653
 654         if (tab->isTabEnabled(tab->indexOf(scaletab)))
 655                 getSize(params_.resizedata, *widthED, *widthUnitCO,
 656                         *heightED, *heightUnitCO, *aspectratioCB);
 657
 658         if (tab->isTabEnabled(tab->indexOf(croptab)))
 659                 getCrop(params_.clipdata, *clipCB, *xlED, *ybED,
 660                         *xrED, *ytED, bbChanged_);
 661
 662         if (tab->isTabEnabled(tab->indexOf(optionstab)))
 663                 getExtra(params_.extradata, extra_);
 664 }
 665
 666
 667 void GuiExternal::getBB()
 668 {
 669         xlED->setText("0");
 670         ybED->setText("0");
 671         xrED->setText("0");
 672         ytED->setText("0");
 673
 674         string const filename = fromqstr(fileED->text());
 675         if (filename.empty())
 676                 return;
 677
 678         string const bb = readBB(filename);
 679         if (bb.empty())
 680                 return;
 681
 682         xlED->setText(toqstr(token(bb, ' ', 0)));
 683         ybED->setText(toqstr(token(bb, ' ', 1)));
 684         xrED->setText(toqstr(token(bb, ' ', 2)));
 685         ytED->setText(toqstr(token(bb, ' ', 3)));
 686
 687         bbChanged_ = false;
 688 }
 689
 690
 691 bool GuiExternal::initialiseParams(string const & data)
 692 {
 693         InsetExternalMailer::string2params(data, buffer(), params_);
 694         return true;
 695 }
 696
 697
 698 void GuiExternal::clearParams()
 699 {
 700         params_ = InsetExternalParams();
 701 }
 702
 703
 704 void GuiExternal::dispatchParams()
 705 {
 706         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 707         dispatch(FuncRequest(getLfun(), lfun));
 708 }
 709
 710
 711 void GuiExternal::editExternal()
 712 {
 713         applyView();
 714         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 715         dispatch(FuncRequest(LFUN_EXTERNAL_EDIT, lfun));
 716 }
 717
 718
 719 vector<string> const GuiExternal::getTemplates() const
 720 {
 721         vector<string> result;
 722
 723         external::TemplateManager::Templates::const_iterator i1, i2;
 724         i1 = external::TemplateManager::get().getTemplates().begin();
 725         i2 = external::TemplateManager::get().getTemplates().end();
 726
 727         for (; i1 != i2; ++i1) {
 728                 result.push_back(i1->second.lyxName);
 729         }
 730         return result;
 731 }
 732
 733
 734 int GuiExternal::getTemplateNumber(string const & name) const
 735 {
 736         external::TemplateManager::Templates::const_iterator i1, i2;
 737         i1 = external::TemplateManager::get().getTemplates().begin();
 738         i2 = external::TemplateManager::get().getTemplates().end();
 739         for (int i = 0; i1 != i2; ++i1, ++i) {
 740                 if (i1->second.lyxName == name)
 741                         return i;
 742         }
 743
 744         // we can get here if a LyX document has a template not installed
 745         // on this machine.
 746         return -1;
 747 }
 748
 749
 750 external::Template GuiExternal::getTemplate(int i) const
 751 {
 752         external::TemplateManager::Templates::const_iterator i1
 753                 = external::TemplateManager::get().getTemplates().begin();
 754
 755         advance(i1, i);
 756
 757         return i1->second;
 758 }
 759
 760
 761 string const
 762 GuiExternal::getTemplateFilters(string const & template_name) const
 763 {
 764         /// Determine the template file extension
 765         external::TemplateManager const & etm =
 766                 external::TemplateManager::get();
 767         external::Template const * const et_ptr =
 768                 etm.getTemplateByName(template_name);
 769
 770         if (et_ptr)
 771                 return et_ptr->fileRegExp;
 772
 773         return string();
 774 }
 775
 776
 777 docstring const GuiExternal::browse(docstring const & input,
 778                                      docstring const & template_name) const
 779 {
 780         docstring const title =  _("Select external file");
 781
 782         docstring const bufpath = from_utf8(bufferFilepath());
 783         FileFilterList const filter =
 784                 FileFilterList(from_utf8(getTemplateFilters(to_utf8(template_name))));
 785
 786         docstring const label1 = _("Documents|#o#O");
 787         docstring const dir1 = from_utf8(lyxrc.document_path);
 788
 789         return browseRelFile(input, bufpath, title, filter, false, label1, dir1);
 790 }
 791
 792
 793 string const GuiExternal::readBB(string const & file)
 794 {
 795         FileName const abs_file(makeAbsPath(file, bufferFilepath()));
 796
 797         // try to get it from the file, if possible. Zipped files are
 798         // unzipped in the readBB_from_PSFile-Function
 799         string const bb = readBB_from_PSFile(abs_file);
 800         if (!bb.empty())
 801                 return bb;
 802
 803         // we don't, so ask the Graphics Cache if it has loaded the file
 804         int width = 0;
 805         int height = 0;
 806
 807         graphics::Cache & gc = graphics::Cache::get();
 808         if (gc.inCache(abs_file)) {
 809                 graphics::Image const * image = gc.item(abs_file)->image();
 810
 811                 if (image) {
 812                         width  = image->width();
 813                         height = image->height();
 814                 }
 815         }
 816
 817         return ("0 0 " + convert<string>(width) + ' ' + convert<string>(height));
 818 }
 819
 820
 821 Dialog * createGuiExternal(GuiView & lv) { return new GuiExternal(lv); }
 822
 823
 824 } // namespace frontend
 825 } // namespace lyx
 826
 827 #include "GuiExternal_moc.cpp"