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 <QCheckBox>
  42 #include <QLineEdit>
  43 #include <QPushButton>
  44 #include <QTabWidget>
  45 #include <QTextBrowser>
  46
  47 using namespace std;
  48 using namespace lyx::support;
  49
  50 namespace lyx {
  51 namespace frontend {
  52
  53 using namespace external;
  54
  55 namespace {
  56
  57 RotationDataType origins_array[] = {
  58         RotationData::DEFAULT,
  59         RotationData::TOPLEFT,
  60         RotationData::BOTTOMLEFT,
  61         RotationData::BASELINELEFT,
  62         RotationData::CENTER,
  63         RotationData::TOPCENTER,
  64         RotationData::BOTTOMCENTER,
  65         RotationData::BASELINECENTER,
  66         RotationData::TOPRIGHT,
  67         RotationData::BOTTOMRIGHT,
  68         RotationData::BASELINERIGHT
  69 };
  70
  71
  72 size_type const origins_array_size =
  73 sizeof(origins_array) / sizeof(origins_array[0]);
  74
  75 vector<external::RotationDataType> const
  76 all_origins(origins_array, origins_array + origins_array_size);
  77
  78 // These are the strings, corresponding to the above, that the GUI should
  79 // use. Note that they can/should be translated.
  80 char const * const origin_gui_strs[] = {
  81         N_("Default"),
  82         N_("Top left"), N_("Bottom left"), N_("Baseline left"),
  83         N_("Center"), N_("Top center"), N_("Bottom center"), N_("Baseline center"),
  84         N_("Top right"), N_("Bottom right"), N_("Baseline right")
  85 };
  86
  87 } // namespace anon
  88
  89
  90 GuiExternal::GuiExternal(GuiView & lv)
  91         : GuiDialog(lv, "external", qt_("External Material")), bbChanged_(false)
  92 {
  93         setupUi(this);
  94
  95         connect(okPB, SIGNAL(clicked()), this, SLOT(slotOK()));
  96         connect(applyPB, SIGNAL(clicked()), this, SLOT(slotApply()));
  97         connect(closePB, SIGNAL(clicked()), this, SLOT(slotClose()));
  98
  99         connect(displayCB, SIGNAL(toggled(bool)),
 100                 showCO, SLOT(setEnabled(bool)));
 101         connect(displayCB, SIGNAL(toggled(bool)),
 102                 displayscaleED, SLOT(setEnabled(bool)));
 103         connect(showCO, SIGNAL(activated(QString)),
 104                 this, SLOT(change_adaptor()));
 105         connect(originCO, SIGNAL(activated(int)),
 106                 this, SLOT(change_adaptor()));
 107         connect(aspectratioCB, SIGNAL(stateChanged(int)),
 108                 this, SLOT(change_adaptor()));
 109         connect(browsePB, SIGNAL(clicked()),
 110                 this, SLOT(browseClicked()));
 111         connect(embedCB, SIGNAL(toggled(bool)),
 112                 this, SLOT(change_adaptor()));
 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::editClicked()
 274 {
 275         editExternal();
 276 }
 277
 278
 279
 280 void GuiExternal::extraChanged(const QString& text)
 281 {
 282         string const format = fromqstr(extraFormatCO->currentText());
 283         extra_[format] = text;
 284         changed();
 285 }
 286
 287
 288 void GuiExternal::formatChanged(const QString& format)
 289 {
 290         extraED->setText(extra_[fromqstr(format)]);
 291 }
 292
 293
 294 void GuiExternal::getbbClicked()
 295 {
 296         getBB();
 297 }
 298
 299
 300 void GuiExternal::sizeChanged()
 301 {
 302         aspectratioCB->setEnabled(activateAspectratio());
 303         changed();
 304 }
 305
 306
 307 void GuiExternal::templateChanged()
 308 {
 309         updateTemplate();
 310         changed();
 311 }
 312
 313
 314 void GuiExternal::widthUnitChanged()
 315 {
 316         bool useHeight = (widthUnitCO->currentIndex() > 0);
 317
 318         if (useHeight)
 319                 widthED->setValidator(unsignedLengthValidator(widthED));
 320         else
 321                 widthED->setValidator(new QDoubleValidator(0, 1000, 2, widthED));
 322
 323         heightED->setEnabled(useHeight);
 324         heightUnitCO->setEnabled(useHeight);
 325         changed();
 326 }
 327
 328
 329 static Length::UNIT defaultUnit()
 330 {
 331         Length::UNIT default_unit = Length::CM;
 332         switch (lyxrc.default_papersize) {
 333         case PAPER_USLETTER:
 334         case PAPER_USLEGAL:
 335         case PAPER_USEXECUTIVE:
 336                 default_unit = Length::IN;
 337                 break;
 338         default:
 339                 break;
 340         }
 341         return default_unit;
 342 }
 343
 344
 345 static void setDisplay(
 346         QCheckBox & displayCB, QComboBox & showCO, QLineEdit & scaleED,
 347         external::DisplayType display, unsigned int scale, bool read_only)
 348 {
 349         int item = 0;
 350         switch (display) {
 351         case external::DefaultDisplay:
 352                 item = 0;
 353                 break;
 354         case external::MonochromeDisplay:
 355                 item = 1;
 356                 break;
 357         case external::GrayscaleDisplay:
 358                 item = 2;
 359                 break;
 360         case external::ColorDisplay:
 361                 item = 3;
 362                 break;
 363         case external::PreviewDisplay:
 364                 item = 4;
 365                 break;
 366         case external::NoDisplay:
 367                 item = 0;
 368                 break;
 369         }
 370
 371         showCO.setCurrentIndex(item);
 372         bool const no_display = display == external::NoDisplay;
 373         showCO.setEnabled(!no_display && !read_only);
 374         displayCB.setChecked(!no_display);
 375         scaleED.setEnabled(!no_display && !read_only);
 376         scaleED.setText(QString::number(scale));
 377 }
 378
 379
 380 static void getDisplay(external::DisplayType & display,
 381                 unsigned int & scale,
 382                 QCheckBox const & displayCB,
 383                 QComboBox const & showCO,
 384                 QLineEdit const & scaleED)
 385 {
 386         switch (showCO.currentIndex()) {
 387         case 0:
 388                 display = external::DefaultDisplay;
 389                 break;
 390         case 1:
 391                 display = external::MonochromeDisplay;
 392                 break;
 393         case 2:
 394                 display = external::GrayscaleDisplay;
 395                 break;
 396         case 3:
 397                 display = external::ColorDisplay;
 398                 break;
 399         case 4:
 400                 display = external::PreviewDisplay;
 401                 break;
 402         }
 403
 404         if (!displayCB.isChecked())
 405                 display = external::NoDisplay;
 406
 407         scale = scaleED.text().toInt();
 408 }
 409
 410
 411 static void setRotation(QLineEdit & angleED, QComboBox & originCO,
 412         external::RotationData const & data)
 413 {
 414         originCO.setCurrentIndex(int(data.origin()));
 415         angleED.setText(toqstr(data.angle));
 416 }
 417
 418
 419 static void getRotation(external::RotationData & data,
 420         QLineEdit const & angleED, QComboBox const & originCO)
 421 {
 422         typedef external::RotationData::OriginType OriginType;
 423
 424         data.origin(static_cast<OriginType>(originCO.currentIndex()));
 425         data.angle = fromqstr(angleED.text());
 426 }
 427
 428
 429 static void setSize(QLineEdit & widthED, QComboBox & widthUnitCO,
 430         QLineEdit & heightED, LengthCombo & heightUnitCO,
 431         QCheckBox & aspectratioCB,
 432         external::ResizeData const & data)
 433 {
 434         bool using_scale = data.usingScale();
 435         string scale = data.scale;
 436         if (data.no_resize()) {
 437                 // Everything is zero, so default to this!
 438                 using_scale = true;
 439                 scale = "100";
 440         }
 441
 442         if (using_scale) {
 443                 widthED.setText(toqstr(scale));
 444                 widthUnitCO.setCurrentIndex(0);
 445         } else {
 446                 widthED.setText(QString::number(data.width.value()));
 447                 // Because 'Scale' is position 0...
 448                 // Note also that width cannot be zero here, so
 449                 // we don't need to worry about the default unit.
 450                 widthUnitCO.setCurrentIndex(data.width.unit() + 1);
 451         }
 452
 453         string const h = data.height.zero() ? string() : data.height.asString();
 454         Length::UNIT default_unit = data.width.zero() ?
 455                 defaultUnit() : data.width.unit();
 456         lengthToWidgets(&heightED, &heightUnitCO, h, default_unit);
 457
 458         heightED.setEnabled(!using_scale);
 459         heightUnitCO.setEnabled(!using_scale);
 460
 461         aspectratioCB.setChecked(data.keepAspectRatio);
 462
 463         bool const disable_aspectRatio = using_scale ||
 464                 data.width.zero() || data.height.zero();
 465         aspectratioCB.setEnabled(!disable_aspectRatio);
 466 }
 467
 468
 469 static void getSize(external::ResizeData & data,
 470         QLineEdit const & widthED, QComboBox const & widthUnitCO,
 471         QLineEdit const & heightED, LengthCombo const & heightUnitCO,
 472         QCheckBox const & aspectratioCB)
 473 {
 474         string const width = fromqstr(widthED.text());
 475
 476         if (widthUnitCO.currentIndex() > 0) {
 477                 // Subtract one, because scale is 0.
 478                 int const unit = widthUnitCO.currentIndex() - 1;
 479
 480                 Length w;
 481                 if (isValidLength(width, &w))
 482                         data.width = w;
 483                 else if (isStrDbl(width))
 484                         data.width = Length(convert<double>(width),
 485                                            static_cast<Length::UNIT>(unit));
 486                 else
 487                         data.width = Length();
 488
 489                 data.scale = string();
 490
 491         } else {
 492                 // scaling instead of a width
 493                 data.scale = width;
 494                 data.width = Length();
 495         }
 496
 497         data.height = Length(widgetsToLength(&heightED, &heightUnitCO));
 498
 499         data.keepAspectRatio = aspectratioCB.isChecked();
 500 }
 501
 502
 503 void setCrop(QCheckBox & clipCB,
 504         QLineEdit & xlED, QLineEdit & ybED,
 505         QLineEdit & xrED, QLineEdit & ytED,
 506         external::ClipData const & data)
 507 {
 508         clipCB.setChecked(data.clip);
 509         graphics::BoundingBox const & bbox = data.bbox;
 510         xlED.setText(QString::number(bbox.xl));
 511         ybED.setText(QString::number(bbox.yb));
 512         xrED.setText(QString::number(bbox.xr));
 513         ytED.setText(QString::number(bbox.yt));
 514 }
 515
 516
 517 static void getCrop(external::ClipData & data,
 518         QCheckBox const & clipCB,
 519         QLineEdit const & xlED, QLineEdit const & ybED,
 520         QLineEdit const & xrED, QLineEdit const & ytED,
 521         bool bb_changed)
 522 {
 523         data.clip = clipCB.isChecked();
 524
 525         if (!bb_changed)
 526                 return;
 527
 528         data.bbox.xl = xlED.text().toInt();
 529         data.bbox.yb = ybED.text().toInt();
 530         data.bbox.xr = xrED.text().toInt();
 531         data.bbox.yt = ytED.text().toInt();
 532 }
 533
 534
 535 static void getExtra(external::ExtraData & data,
 536               GuiExternal::MapType const & extra)
 537 {
 538         typedef GuiExternal::MapType MapType;
 539         MapType::const_iterator it = extra.begin();
 540         MapType::const_iterator const end = extra.end();
 541         for (; it != end; ++it)
 542                 data.set(it->first, trim(fromqstr(it->second)));
 543 }
 544
 545
 546 void GuiExternal::updateContents()
 547 {
 548         tab->setCurrentIndex(0);
 549
 550         string const name =
 551                 params_.filename.outputFilename(bufferFilepath());
 552         fileED->setText(toqstr(name));
 553         embedCB->setCheckState(params_.filename.embedded() ? Qt::Checked : Qt::Unchecked);
 554
 555         externalCO->setCurrentIndex(getTemplateNumber(params_.templatename()));
 556         updateTemplate();
 557
 558         draftCB->setChecked(params_.draft);
 559
 560         setDisplay(*displayCB, *showCO, *displayscaleED,
 561                    params_.display, params_.lyxscale, isBufferReadonly());
 562
 563         setRotation(*angleED, *originCO, params_.rotationdata);
 564
 565         setSize(*widthED, *widthUnitCO, *heightED, *heightUnitCO,
 566                 *aspectratioCB, params_.resizedata);
 567
 568         setCrop(*clipCB, *xlED, *ybED, *xrED, *ytED, params_.clipdata);
 569         bbChanged_ = !params_.clipdata.bbox.empty();
 570
 571         isValid();
 572 }
 573
 574
 575 void GuiExternal::updateTemplate()
 576 {
 577         external::Template templ = getTemplate(externalCO->currentIndex());
 578         externalTB->setPlainText(qt_(templ.helpText));
 579
 580         // Ascertain which (if any) transformations the template supports
 581         // and disable tabs hosting unsupported transforms.
 582         typedef vector<external::TransformID> TransformIDs;
 583         TransformIDs const transformIds = templ.transformIds;
 584         TransformIDs::const_iterator tr_begin = transformIds.begin();
 585         TransformIDs::const_iterator const tr_end = transformIds.end();
 586
 587         bool found = std::find(tr_begin, tr_end, external::Rotate) != tr_end;
 588         tab->setTabEnabled(tab->indexOf(rotatetab), found);
 589         found = std::find(tr_begin, tr_end, external::Resize) != tr_end;
 590         tab->setTabEnabled(tab->indexOf(scaletab), found);
 591
 592         found = std::find(tr_begin, tr_end, external::Clip) != tr_end;
 593         tab->setTabEnabled(tab->indexOf(croptab), found);
 594
 595         found = std::find(tr_begin, tr_end, external::Extra) != tr_end;
 596         tab->setTabEnabled(tab->indexOf(optionstab), found);
 597
 598         if (!found)
 599                 return;
 600
 601         // Ascertain whether the template has any formats supporting
 602         // the 'Extra' option
 603         extra_.clear();
 604         extraED->clear();
 605         extraFormatCO->clear();
 606
 607         external::Template::Formats::const_iterator it  = templ.formats.begin();
 608         external::Template::Formats::const_iterator end = templ.formats.end();
 609         for (; it != end; ++it) {
 610                 if (it->second.option_transformers.find(external::Extra) ==
 611                     it->second.option_transformers.end())
 612                         continue;
 613                 string const format = it->first;
 614                 string const opt = params_.extradata.get(format);
 615                 extraFormatCO->addItem(toqstr(format));
 616                 extra_[format] = toqstr(opt);
 617         }
 618
 619         bool const enabled = extraFormatCO->count()  > 0;
 620
 621         tab->setTabEnabled(
 622                 tab->indexOf(optionstab), enabled);
 623         extraED->setEnabled(enabled && !isBufferReadonly());
 624         extraFormatCO->setEnabled(enabled);
 625
 626         if (enabled) {
 627                 extraFormatCO->setCurrentIndex(0);
 628                 extraED->setText(extra_[fromqstr(extraFormatCO->currentText())]);
 629         }
 630 }
 631
 632
 633 void GuiExternal::applyView()
 634 {
 635         params_.filename.set(fromqstr(fileED->text()), bufferFilepath());
 636         params_.filename.setEmbed(embedCB->checkState() == Qt::Checked);
 637
 638         params_.settemplate(getTemplate(externalCO->currentIndex()).lyxName);
 639
 640         params_.draft = draftCB->isChecked();
 641
 642         getDisplay(params_.display, params_.lyxscale,
 643                    *displayCB, *showCO,
 644                    *displayscaleED);
 645
 646         if (tab->isTabEnabled(tab->indexOf(rotatetab)))
 647                 getRotation(params_.rotationdata, *angleED, *originCO);
 648
 649         if (tab->isTabEnabled(tab->indexOf(scaletab)))
 650                 getSize(params_.resizedata, *widthED, *widthUnitCO,
 651                         *heightED, *heightUnitCO, *aspectratioCB);
 652
 653         if (tab->isTabEnabled(tab->indexOf(croptab)))
 654                 getCrop(params_.clipdata, *clipCB, *xlED, *ybED,
 655                         *xrED, *ytED, bbChanged_);
 656
 657         if (tab->isTabEnabled(tab->indexOf(optionstab)))
 658                 getExtra(params_.extradata, extra_);
 659 }
 660
 661
 662 void GuiExternal::getBB()
 663 {
 664         xlED->setText("0");
 665         ybED->setText("0");
 666         xrED->setText("0");
 667         ytED->setText("0");
 668
 669         string const filename = fromqstr(fileED->text());
 670         if (filename.empty())
 671                 return;
 672
 673         string const bb = readBB(filename);
 674         if (bb.empty())
 675                 return;
 676
 677         xlED->setText(toqstr(token(bb, ' ', 0)));
 678         ybED->setText(toqstr(token(bb, ' ', 1)));
 679         xrED->setText(toqstr(token(bb, ' ', 2)));
 680         ytED->setText(toqstr(token(bb, ' ', 3)));
 681
 682         bbChanged_ = false;
 683 }
 684
 685
 686 bool GuiExternal::initialiseParams(string const & data)
 687 {
 688         InsetExternalMailer::string2params(data, buffer(), params_);
 689         return true;
 690 }
 691
 692
 693 void GuiExternal::clearParams()
 694 {
 695         params_ = InsetExternalParams();
 696 }
 697
 698
 699 void GuiExternal::dispatchParams()
 700 {
 701         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 702         dispatch(FuncRequest(getLfun(), lfun));
 703 }
 704
 705
 706 void GuiExternal::editExternal()
 707 {
 708         applyView();
 709         string const lfun = InsetExternalMailer::params2string(params_, buffer());
 710         dispatch(FuncRequest(LFUN_EXTERNAL_EDIT, lfun));
 711 }
 712
 713
 714 vector<string> const GuiExternal::getTemplates() const
 715 {
 716         vector<string> result;
 717
 718         external::TemplateManager::Templates::const_iterator i1, i2;
 719         i1 = external::TemplateManager::get().getTemplates().begin();
 720         i2 = external::TemplateManager::get().getTemplates().end();
 721
 722         for (; i1 != i2; ++i1) {
 723                 result.push_back(i1->second.lyxName);
 724         }
 725         return result;
 726 }
 727
 728
 729 int GuiExternal::getTemplateNumber(string const & name) const
 730 {
 731         external::TemplateManager::Templates::const_iterator i1, i2;
 732         i1 = external::TemplateManager::get().getTemplates().begin();
 733         i2 = external::TemplateManager::get().getTemplates().end();
 734         for (int i = 0; i1 != i2; ++i1, ++i) {
 735                 if (i1->second.lyxName == name)
 736                         return i;
 737         }
 738
 739         // we can get here if a LyX document has a template not installed
 740         // on this machine.
 741         return -1;
 742 }
 743
 744
 745 external::Template GuiExternal::getTemplate(int i) const
 746 {
 747         external::TemplateManager::Templates::const_iterator i1
 748                 = external::TemplateManager::get().getTemplates().begin();
 749
 750         advance(i1, i);
 751
 752         return i1->second;
 753 }
 754
 755
 756 string const
 757 GuiExternal::getTemplateFilters(string const & template_name) const
 758 {
 759         /// Determine the template file extension
 760         external::TemplateManager const & etm =
 761                 external::TemplateManager::get();
 762         external::Template const * const et_ptr =
 763                 etm.getTemplateByName(template_name);
 764
 765         if (et_ptr)
 766                 return et_ptr->fileRegExp;
 767
 768         return string();
 769 }
 770
 771
 772 docstring const GuiExternal::browse(docstring const & input,
 773                                      docstring const & template_name) const
 774 {
 775         docstring const title =  _("Select external file");
 776
 777         docstring const bufpath = from_utf8(bufferFilepath());
 778         FileFilterList const filter =
 779                 FileFilterList(from_utf8(getTemplateFilters(to_utf8(template_name))));
 780
 781         docstring const label1 = _("Documents|#o#O");
 782         docstring const dir1 = from_utf8(lyxrc.document_path);
 783
 784         return browseRelFile(input, bufpath, title, filter, false, label1, dir1);
 785 }
 786
 787
 788 string const GuiExternal::readBB(string const & file)
 789 {
 790         FileName const abs_file(makeAbsPath(file, bufferFilepath()));
 791
 792         // try to get it from the file, if possible. Zipped files are
 793         // unzipped in the readBB_from_PSFile-Function
 794         string const bb = readBB_from_PSFile(abs_file);
 795         if (!bb.empty())
 796                 return bb;
 797
 798         // we don't, so ask the Graphics Cache if it has loaded the file
 799         int width = 0;
 800         int height = 0;
 801
 802         graphics::Cache & gc = graphics::Cache::get();
 803         if (gc.inCache(abs_file)) {
 804                 graphics::Image const * image = gc.item(abs_file)->image();
 805
 806                 if (image) {
 807                         width  = image->width();
 808                         height = image->height();
 809                 }
 810         }
 811
 812         return ("0 0 " + convert<string>(width) + ' ' + convert<string>(height));
 813 }
 814
 815
 816 Dialog * createGuiExternal(GuiView & lv) { return new GuiExternal(lv); }
 817
 818
 819 } // namespace frontend
 820 } // namespace lyx
 821
 822 #include "GuiExternal_moc.cpp"