src/frontends/xforms/FormGraphics.C

   1 /**
   2  * \file FormGraphics.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Baruch Even
   7  * \author Herbert Voß
   8  * \author Rob Lahaye
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "FormGraphics.h"
  16 #include "ControlGraphics.h"
  17 #include "forms/form_graphics.h"
  18
  19 #include "controllers/helper_funcs.h"
  20
  21 #include "checkedwidgets.h"
  22 #include "input_validators.h"
  23 #include "Tooltips.h"
  24 #include "xforms_helpers.h"
  25 #include "xformsBC.h"
  26
  27 #include "lyxrc.h" // for lyxrc.display_graphics
  28
  29 #include "insets/insetgraphicsParams.h"
  30
  31 #include "frontends/Alert.h"
  32
  33 #include "support/lyxlib.h"  // for float_equal
  34 #include "support/convert.h"
  35
  36 #include "lyx_forms.h"
  37
  38 #include <cmath>
  39
  40 #ifndef CXX_GLOBAL_CSTD
  41 using std::floor;
  42 #endif
  43
  44 using std::endl;
  45
  46 using std::vector;
  47 using std::string;
  48
  49 namespace lyx {
  50
  51 using support::bformat;
  52 using support::float_equal;
  53 using support::getStringFromVector;
  54 using support::strToDbl;
  55 using support::strToInt;
  56 using support::token;
  57
  58 namespace frontend {
  59
  60 namespace {
  61
  62 // Bound the number of input characters
  63 int const SIZE_MAXDIGITS = 10;
  64 int const FILENAME_MAXCHARS = 1024;
  65
  66 string defaultUnit("cm");
  67
  68 #if FL_VERSION == 0 || (FL_REVISION == 0 && FL_FIXLEVEL < 2)
  69 bool const scalableTabfolders = false;
  70 #else
  71 bool const scalableTabfolders = true;
  72 #endif
  73
  74 } // namespace anon
  75
  76
  77 typedef FormController<ControlGraphics, FormView<FD_graphics> > base_class;
  78
  79 FormGraphics::FormGraphics(Dialog & parent)
  80         : base_class(parent, _("Graphics"), scalableTabfolders)
  81 {}
  82
  83
  84 void FormGraphics::redraw()
  85 {
  86         if (form() && form()->visible)
  87                 fl_redraw_form(form());
  88         else
  89                 return;
  90         FL_FORM * outer_form = fl_get_active_folder(dialog_->tabfolder);
  91         if (outer_form && outer_form->visible)
  92                 fl_redraw_form(outer_form);
  93 }
  94
  95
  96 void FormGraphics::build()
  97 {
  98         dialog_.reset(build_graphics(this));
  99
 100         // Manage the ok, apply, restore and cancel/close buttons
 101         bcview().setOK(dialog_->button_ok);
 102         bcview().setApply(dialog_->button_apply);
 103         bcview().setCancel(dialog_->button_close);
 104         bcview().setRestore(dialog_->button_restore);
 105
 106         // The file section.
 107         file_.reset(build_graphics_file(this));
 108
 109         // Disable for read-only documents.
 110         bcview().addReadOnly(file_->button_browse);
 111         bcview().addReadOnly(file_->check_aspectratio);
 112         bcview().addReadOnly(file_->check_draft);
 113         bcview().addReadOnly(file_->check_nounzip);
 114
 115         // Check validity of "length + unit" input.
 116         addCheckedGlueLength(bcview(), file_->input_width);
 117         addCheckedGlueLength(bcview(), file_->input_height);
 118
 119         // Trigger an input event for cut&paste with middle mouse button.
 120         setPrehandler(file_->input_filename);
 121         setPrehandler(file_->input_lyxscale);
 122         setPrehandler(file_->input_width);
 123         setPrehandler(file_->input_height);
 124
 125         // Activate ok/apply immediately upon input.
 126         fl_set_input_return(file_->input_filename, FL_RETURN_CHANGED);
 127         fl_set_input_return(file_->input_lyxscale, FL_RETURN_CHANGED);
 128         fl_set_input_return(file_->input_width, FL_RETURN_CHANGED);
 129         fl_set_input_return(file_->input_height, FL_RETURN_CHANGED);
 130
 131         fl_set_input_maxchars(file_->input_filename, FILENAME_MAXCHARS);
 132         fl_set_input_filter(file_->input_lyxscale, fl_unsigned_int_filter);
 133
 134         // Width default is scaling: use unsigned float filter.
 135         fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
 136         fl_set_input_maxchars(file_->input_height, SIZE_MAXDIGITS);
 137
 138         string const display_List =
 139                 _("Default|Monochrome|Grayscale|Color|Do not display");
 140         fl_addto_choice(file_->choice_display, display_List.c_str());
 141
 142         string const height_list = buildChoiceLengthString();
 143         string const width_list = bformat(_("Scale%%%%|%1$s"), height_list);
 144
 145         fl_addto_choice(file_->choice_width, width_list.c_str());
 146         fl_addto_choice(file_->choice_height, height_list.c_str());
 147
 148         // set up the tooltips for the filesection
 149         string str = _("The file you want to insert.");
 150         tooltips().init(file_->input_filename, str);
 151         str = _("Browse the directories.");
 152         tooltips().init(file_->button_browse, str);
 153
 154         str = _("Scale the image to inserted percentage value.");
 155         tooltips().init(file_->input_lyxscale, str);
 156         str = _("Select display mode for this image.");
 157         tooltips().init(file_->choice_display, str);
 158
 159         str = _("Set the image width to the inserted value.");
 160         tooltips().init(file_->input_width, str);
 161         // xgettext:no-c-format
 162         str = _("Select unit for width; Scale% for scaling whole image.");
 163         tooltips().init(file_->choice_width, str);
 164         str = _("Set the image height to the inserted value.");
 165         tooltips().init(file_->input_height, str);
 166         str = _("Select unit for height.");
 167         tooltips().init(file_->choice_height, str);
 168         str = _("Do not distort the image. "
 169                 "Keep image within \"width\" by \"height\" and obey "
 170                 "aspect ratio.");
 171         tooltips().init(file_->check_aspectratio, str);
 172         str = _("Pass a filename like \"file.eps.gz\" to the LaTeX output. "
 173                 "Useful when LaTeX should unzip the file. Needs an additional "
 174                 "file like \"file.eps.bb\" which holds the values for "
 175                 "the bounding box.");
 176         tooltips().init(file_->check_nounzip, str);
 177         str = _("Show image only as a rectangle of the original size.");
 178         tooltips().init(file_->check_draft, str);
 179
 180         // the bounding box selection
 181         bbox_.reset(build_graphics_bbox(this));
 182
 183         // disable for read-only documents
 184         bcview().addReadOnly(bbox_->button_getBB);
 185         bcview().addReadOnly(bbox_->check_clip);
 186
 187         // check validity of "length + unit" input
 188         addCheckedLyXLength(bcview(), bbox_->input_bb_x1, bbox_->text_X);
 189
 190         // trigger an input event for cut&paste with middle mouse button.
 191         setPrehandler(bbox_->input_bb_x0);
 192         setPrehandler(bbox_->input_bb_y0);
 193         setPrehandler(bbox_->input_bb_x1);
 194         setPrehandler(bbox_->input_bb_y1);
 195
 196         // for activate ok/apply immediately upon input
 197         fl_set_input_return(bbox_->input_bb_x0, FL_RETURN_CHANGED);
 198         fl_set_input_return(bbox_->input_bb_y0, FL_RETURN_CHANGED);
 199         fl_set_input_return(bbox_->input_bb_x1, FL_RETURN_CHANGED);
 200         fl_set_input_return(bbox_->input_bb_y1, FL_RETURN_CHANGED);
 201
 202         fl_set_input_filter(bbox_->input_bb_x0, fl_unsigned_float_filter);
 203         fl_set_input_filter(bbox_->input_bb_y0, fl_unsigned_float_filter);
 204         fl_set_input_filter(bbox_->input_bb_y1, fl_unsigned_float_filter);
 205
 206         string const bb_units = getStringFromVector(getBBUnits(), "|");
 207         fl_addto_choice(bbox_->choice_bb_units, bb_units.c_str());
 208
 209         // set up the tooltips for the bounding-box-section
 210         str = _("The lower left x-value of the bounding box.");
 211         tooltips().init(bbox_->input_bb_x0, str);
 212         str = _("The lower left y-value of the bounding box.");
 213         tooltips().init(bbox_->input_bb_y0, str);
 214         str = _("The upper right x-value of the bounding box; "
 215                 "only this input field allows length + unit, e.g. 5cm "
 216                 "and sets the unit for the other input fields.");
 217         tooltips().init(bbox_->input_bb_x1, str);
 218         str = _("The upper right y-value of the bounding box.");
 219         tooltips().init(bbox_->input_bb_y1, str);
 220         str = _("Select unit for the bounding box values.");
 221         tooltips().init(bbox_->choice_bb_units, str);
 222
 223         str = _("Read the image coordinates new from file. For (e)ps-file "
 224                 "the bounding box is read, otherwise the imagesize in pixels. "
 225                 "Default unit is \"bp\", the PostScript's b(ig) p(oint).");
 226         tooltips().init(bbox_->button_getBB, str);
 227
 228         str = _("Clip image to the bounding box values.");
 229         tooltips().init(bbox_->check_clip, str);
 230
 231         // the extra section
 232         extra_.reset(build_graphics_extra(this));
 233
 234         // disable for read-only documents
 235         bcview().addReadOnly(extra_->input_rotate_angle);
 236         bcview().addReadOnly(extra_->choice_origin);
 237         bcview().addReadOnly(extra_->check_subcaption);
 238         bcview().addReadOnly(extra_->input_special);
 239
 240         // trigger an input event for cut&paste with middle mouse button.
 241         setPrehandler(extra_->input_rotate_angle);
 242         setPrehandler(extra_->input_subcaption);
 243         setPrehandler(extra_->input_special);
 244
 245         fl_set_input_return(extra_->input_rotate_angle, FL_RETURN_CHANGED);
 246         fl_set_input_return(extra_->input_subcaption, FL_RETURN_CHANGED);
 247         fl_set_input_return(extra_->input_special, FL_RETURN_CHANGED);
 248
 249         fl_set_input_filter(extra_->input_rotate_angle, fl_float_filter);
 250
 251         vector<RotationOriginPair> origindata = getRotationOriginData();
 252
 253         // Store the identifiers for later
 254         origins_ = getSecond(origindata);
 255
 256         string const choice = getStringFromVector(getFirst(origindata), "|");
 257         fl_addto_choice(extra_->choice_origin, choice.c_str());
 258
 259         // set up the tooltips for the extra section
 260         str = _("Insert the rotation angle in degrees. "
 261                 "Positive value rotates anti-clockwise, "
 262                 "negative value clockwise.");
 263         tooltips().init(extra_->input_rotate_angle, str);
 264         str = _("Insert the point of origin for rotation.");
 265         tooltips().init(extra_->choice_origin, str);
 266         str = _("Enables use of subfigure with its own caption.");
 267         tooltips().init(extra_->check_subcaption, str);
 268         str = _("Insert the optional subfigure caption.");
 269         tooltips().init(extra_->input_subcaption, str);
 270         str = _("Add any additional LaTeX option, which is defined in the "
 271                 "graphicx-package and not mentioned in the gui's tabfolders.");
 272         tooltips().init(extra_->input_special, str);
 273
 274         // Enable the tabfolder to be rescaled correctly.
 275         if (scalableTabfolders)
 276                 fl_set_tabfolder_autofit(dialog_->tabfolder, FL_FIT);
 277
 278         // Stack tabs
 279         fl_addto_tabfolder(dialog_->tabfolder, _("File").c_str(),
 280                            file_->form);
 281         fl_addto_tabfolder(dialog_->tabfolder, _("Bounding Box").c_str(),
 282                            bbox_->form);
 283         fl_addto_tabfolder(dialog_->tabfolder, _("Extra").c_str(),
 284                            extra_->form);
 285
 286         // set the right default unit
 287         switch (lyxrc.default_papersize) {
 288         case PAPER_DEFAULT: break;
 289         case PAPER_USLETTER:
 290         case PAPER_LEGALPAPER:
 291         case PAPER_EXECUTIVEPAPER: defaultUnit = "in"; break;
 292         case PAPER_A3PAPER:
 293         case PAPER_A4PAPER:
 294         case PAPER_A5PAPER:
 295         case PAPER_B5PAPER: defaultUnit = "cm"; break;
 296         }
 297 }
 298
 299
 300 void FormGraphics::apply()
 301 {
 302         // Create the parameters structure and fill the data from the dialog.
 303         InsetGraphicsParams & igp = controller().params();
 304
 305         // the file section
 306         igp.filename.set(getString(file_->input_filename),
 307                          kernel().bufferFilepath());
 308
 309         igp.lyxscale = strToInt(getString(file_->input_lyxscale));
 310         if (igp.lyxscale == 0) {
 311                 igp.lyxscale = 100;
 312         }
 313
 314         switch (fl_get_choice(file_->choice_display)) {
 315         case 5:
 316                 igp.display = graphics::NoDisplay;
 317                 break;
 318         case 4:
 319                 igp.display = graphics::ColorDisplay;
 320                 break;
 321         case 3:
 322                 igp.display = graphics::GrayscaleDisplay;
 323                 break;
 324         case 2:
 325                 igp.display = graphics::MonochromeDisplay;
 326                 break;
 327         case 1:
 328                 igp.display = graphics::DefaultDisplay;
 329         }
 330
 331         // first item in choice_width means scaling
 332         if (fl_get_choice(file_->choice_width) == 1) {
 333                 igp.scale = getString(file_->input_width);
 334                 if (igp.scale.empty()
 335                         || float_equal(strToDbl(igp.scale), 0.0, 0.05)
 336                         || float_equal(strToDbl(igp.scale), 100.0, 0.05)) {
 337                         igp.scale = string();
 338                 }
 339                 igp.width = LyXLength();
 340         } else {
 341                 igp.scale = string();
 342                 igp.width = LyXLength(getLengthFromWidgets(file_->input_width,
 343                                                            file_->choice_width));
 344         }
 345         igp.height = LyXLength(getLengthFromWidgets(file_->input_height,
 346                                                     file_->choice_height));
 347         igp.keepAspectRatio = fl_get_button(file_->check_aspectratio);
 348
 349         igp.draft = fl_get_button(file_->check_draft);
 350         igp.noUnzip = fl_get_button(file_->check_nounzip);
 351
 352         // the bb section
 353         if (!controller().bbChanged) {
 354                 // don't write anything
 355                 igp.bb.erase();
 356         } else {
 357                 // allow length + unit input only for x1 input field
 358                 string x1_str = "0";
 359                 if (!getString(bbox_->input_bb_x1).empty()) {
 360                         x1_str = getLengthFromWidgets(bbox_->input_bb_x1,
 361                                                       bbox_->choice_bb_units);
 362                         LyXLength x1 = LyXLength(x1_str);
 363                         x1_str = x1.asString();
 364
 365                         string unit;
 366                         switch (x1.unit()) {
 367                         case LyXLength::IN:
 368                                 unit = "in";
 369                                 break;
 370                         case LyXLength::MM:
 371                                 unit = "mm";
 372                                 break;
 373                         case LyXLength::CM:
 374                                 unit = "cm";
 375                                 break;
 376                         case LyXLength::BP:
 377                         default:
 378                                 unit = "bp";
 379                         }
 380                         fl_set_choice_text(bbox_->choice_bb_units, unit.c_str());
 381                 }
 382
 383                 string bb;
 384                 if (getString(bbox_->input_bb_x0).empty())
 385                         bb = "0";
 386                 else
 387                         bb = getLengthFromWidgets(bbox_->input_bb_x0,
 388                                                   bbox_->choice_bb_units);
 389
 390                 bb += ' ';
 391
 392                 if (getString(bbox_->input_bb_y0).empty())
 393                         bb += '0';
 394                 else
 395                         bb += getLengthFromWidgets(bbox_->input_bb_y0,
 396                                                   bbox_->choice_bb_units);
 397
 398                 bb += ' ' + x1_str + ' ';
 399
 400                 if (getString(bbox_->input_bb_y1).empty())
 401                         bb += '0';
 402                 else
 403                         bb += getLengthFromWidgets(bbox_->input_bb_y1,
 404                                                    bbox_->choice_bb_units);
 405
 406                 igp.bb = bb;
 407         }
 408         igp.clip = fl_get_button(bbox_->check_clip);
 409
 410         // the extra section
 411         igp.rotateAngle = getString(extra_->input_rotate_angle);
 412
 413         // map angle into -360 (clock-wise) to +360 (counter clock-wise)
 414         float rotAngle = strToDbl(igp.rotateAngle);
 415         if (std::abs(rotAngle) > 360.0) {
 416                  rotAngle -= 360.0 * floor(rotAngle / 360.0);
 417                  igp.rotateAngle = convert<string>(rotAngle);
 418         }
 419
 420         fl_set_input(extra_->input_rotate_angle, igp.rotateAngle.c_str());
 421
 422         int const origin_pos = fl_get_choice(extra_->choice_origin);
 423         if (origin_pos == 0) {
 424                 igp.rotateOrigin.erase();
 425         } else {
 426                 igp.rotateOrigin = origins_[origin_pos - 1];
 427         }
 428
 429         igp.subcaption = fl_get_button(extra_->check_subcaption);
 430         igp.subcaptionText = getString(extra_->input_subcaption);
 431
 432         igp.special = getString(extra_->input_special);
 433 }
 434
 435
 436 void FormGraphics::update() {
 437         // Update dialog with details from inset
 438         InsetGraphicsParams & igp = controller().params();
 439
 440         // the file section
 441         string const name =
 442                 igp.filename.outputFilename(kernel().bufferFilepath());
 443         fl_set_input(file_->input_filename, name.c_str());
 444         fl_set_input(file_->input_lyxscale, convert<string>(igp.lyxscale).c_str());
 445
 446         switch (igp.display) {
 447         case graphics::NoDisplay:
 448                 fl_set_choice(file_->choice_display, 5);
 449                 break;
 450         case graphics::ColorDisplay:
 451                 fl_set_choice(file_->choice_display, 4);
 452                 break;
 453         case graphics::GrayscaleDisplay:
 454                 fl_set_choice(file_->choice_display, 3);
 455                 break;
 456         case graphics::MonochromeDisplay:
 457                 fl_set_choice(file_->choice_display, 2);
 458                 break;
 459         case graphics::DefaultDisplay:
 460                 fl_set_choice(file_->choice_display, 1);
 461         }
 462
 463         // set width input fields according to scaling or width/height input
 464         if (!igp.scale.empty() && !float_equal(strToDbl(igp.scale), 0.0, 0.05)) {
 465                 fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
 466                 fl_set_input_maxchars(file_->input_width, 0);
 467                 fl_set_input(file_->input_width, igp.scale.c_str());
 468                 fl_set_choice(file_->choice_width, 1);
 469         } else {
 470                 fl_set_input_filter(file_->input_width, NULL);
 471                 fl_set_input_maxchars(file_->input_width, SIZE_MAXDIGITS);
 472                 updateWidgetsFromLength(file_->input_width, file_->choice_width,
 473                                         igp.width, defaultUnit);
 474         }
 475
 476         updateWidgetsFromLength(file_->input_height, file_->choice_height,
 477                                 igp.height, defaultUnit);
 478
 479         // disable height input in case of scaling
 480         bool const disable_height = (!igp.scale.empty()
 481                 && !float_equal(strToDbl(igp.scale), 0.0, 0.05));
 482         setEnabled(file_->input_height, !disable_height);
 483         setEnabled(file_->choice_height, !disable_height);
 484
 485         fl_set_button(file_->check_aspectratio, igp.keepAspectRatio);
 486         fl_set_button(file_->check_draft, igp.draft);
 487         fl_set_button(file_->check_nounzip, igp.noUnzip);
 488
 489         // disable aspectratio button in case of scaling or one of width/height
 490         // is empty
 491         bool const disable_aspectRatio = disable_height ||
 492                                 getString(file_->input_width).empty() ||
 493                                 getString(file_->input_height).empty();
 494         setEnabled(file_->check_aspectratio, !disable_aspectRatio);
 495
 496         // the bb section
 497         // set the bounding box values, if exists. First we need the whole
 498         // path, because the controller knows nothing about the doc-dir
 499         updateBB(igp.filename.absFilename(), igp.bb);
 500         fl_set_button(bbox_->check_clip, igp.clip);
 501
 502         // the extra section
 503         fl_set_input(extra_->input_rotate_angle, igp.rotateAngle.c_str());
 504
 505         int origin_pos;
 506         if (igp.rotateOrigin.empty()) {
 507                 origin_pos = 1;
 508         } else {
 509                 origin_pos = 1 + findPos(origins_, igp.rotateOrigin);
 510         }
 511         fl_set_choice(extra_->choice_origin, origin_pos);
 512
 513         fl_set_button(extra_->check_subcaption, igp.subcaption);
 514         fl_set_input(extra_->input_subcaption, igp.subcaptionText.c_str());
 515         setEnabled(extra_->input_subcaption,
 516                    fl_get_button(extra_->check_subcaption));
 517         fl_set_input(extra_->input_special, igp.special.c_str());
 518
 519         // open dialog in the file-tab, whenever filename is empty
 520         if (igp.filename.empty()) {
 521                 fl_set_folder(dialog_->tabfolder, file_->form);
 522         }
 523 }
 524
 525
 526 void FormGraphics::updateBB(string const & filename, string const & bb_inset)
 527 {
 528         // Update dialog with details from inset
 529         // set the bounding box values, if exists. First we need the whole
 530         // path, because the controller knows nothing about the doc-dir
 531         controller().bbChanged = false;
 532         if (bb_inset.empty()) {
 533                 lyxerr[Debug::GRAPHICS]
 534                         << "FormGraphics::updateBB() [no BoundingBox]" << endl;
 535                 string const bb = controller().readBB(filename);
 536                 if (!bb.empty()) {
 537                         // get the values from the file
 538                         // in this case we always have the point-unit
 539                         fl_set_input(bbox_->input_bb_x0,
 540                                      token(bb,' ',0).c_str());
 541                         fl_set_input(bbox_->input_bb_y0,
 542                                      token(bb,' ',1).c_str());
 543                         fl_set_input(bbox_->input_bb_x1,
 544                                      token(bb,' ',2).c_str());
 545                         fl_set_input(bbox_->input_bb_y1,
 546                                      token(bb,' ',3).c_str());
 547
 548                 } else {
 549                         // no bb from file
 550                         fl_set_input(bbox_->input_bb_x0, bb.c_str());
 551                         fl_set_input(bbox_->input_bb_y0, bb.c_str());
 552                         fl_set_input(bbox_->input_bb_x1, bb.c_str());
 553                         fl_set_input(bbox_->input_bb_y1, bb.c_str());
 554                 }
 555                 // "bp"
 556                 fl_set_choice(bbox_->choice_bb_units, 1);
 557
 558         } else {
 559                 // get the values from the inset
 560                 lyxerr[Debug::GRAPHICS]
 561                         << "FormGraphics::updateBB(): igp has BoundingBox"
 562                         << " ["<< bb_inset << "]" << endl;
 563                 controller().bbChanged = true;
 564
 565                 LyXLength anyLength;
 566                 anyLength = LyXLength(token(bb_inset,' ',0));
 567                 updateWidgetsFromLength(bbox_->input_bb_x0,
 568                                         bbox_->choice_bb_units,anyLength,"bp");
 569                 anyLength = LyXLength(token(bb_inset,' ',1));
 570                 updateWidgetsFromLength(bbox_->input_bb_y0,
 571                                         bbox_->choice_bb_units,anyLength,"bp");
 572                 anyLength = LyXLength(token(bb_inset,' ',2));
 573                 updateWidgetsFromLength(bbox_->input_bb_x1,
 574                                         bbox_->choice_bb_units,anyLength,"bp");
 575                 anyLength = LyXLength(token(bb_inset,' ',3));
 576                 updateWidgetsFromLength(bbox_->input_bb_y1,
 577                                         bbox_->choice_bb_units,anyLength,"bp");
 578         }
 579 }
 580
 581
 582 ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
 583 {
 584         ButtonPolicy::SMInput activate = ButtonPolicy::SMI_VALID;
 585
 586         // the file section
 587         if (ob == file_->button_browse) {
 588                 activate = ButtonPolicy::SMI_NOOP;
 589
 590                 // Get the filename from the dialog
 591                 string const in_name = getString(file_->input_filename);
 592                 string const out_name = controller().browse(in_name);
 593                 lyxerr[Debug::GRAPHICS]
 594                         << "[FormGraphics]out_name: " << out_name << endl;
 595                 if (out_name != in_name && !out_name.empty()) {
 596                         fl_set_input(file_->input_filename, out_name.c_str());
 597                 }
 598                 if (controller().isFilenameValid(out_name) &&
 599                     !controller().bbChanged) {
 600                         updateBB(out_name, string());
 601                 }
 602         } else if (ob == file_->input_width || ob == file_->input_height) {
 603                 // disable aspectratio button in case of scaling or one of
 604                 // width/height is empty
 605                 bool const disable = fl_get_choice(file_->choice_width) == 1 ||
 606                                     getString(file_->input_width).empty() ||
 607                                     getString(file_->input_height).empty();
 608                 setEnabled(file_->check_aspectratio, !disable);
 609         } else if (ob == file_->choice_width) {
 610                 // disable height input in case of scaling
 611                 bool const scaling = fl_get_choice(file_->choice_width) == 1;
 612                 setEnabled(file_->input_height, !scaling);
 613                 setEnabled(file_->choice_height, !scaling);
 614
 615                 // allow only integer intput for scaling; float otherwise
 616                 if (scaling) {
 617                         fl_set_input_filter(file_->input_width, fl_unsigned_float_filter);
 618                         fl_set_input_maxchars(file_->input_width, 0);
 619                 } else {
 620                         fl_set_input_filter(file_->input_width, NULL);
 621                         fl_set_input_maxchars(file_->input_width, SIZE_MAXDIGITS);
 622                 }
 623
 624                 // disable aspectratio button in case of scaling or height
 625                 // input is empty
 626                 bool const disable_aspectratio =
 627                         scaling || getString(file_->input_height).empty();
 628                 setEnabled(file_->check_aspectratio, !disable_aspectratio);
 629         // the bb section
 630         } else if (!controller().bbChanged &&
 631                    (ob == bbox_->check_clip  || ob == bbox_->choice_bb_units ||
 632                     ob == bbox_->input_bb_x0 || ob == bbox_->input_bb_y0 ||
 633                     ob == bbox_->input_bb_x1 || ob == bbox_->input_bb_y1)) {
 634                 controller().bbChanged = true;
 635         } else if (ob == bbox_->button_getBB) {
 636                 string const filename = getString(file_->input_filename);
 637                 if (!filename.empty()) {
 638                         string bb = controller().readBB(filename);
 639                         if (!bb.empty()) {
 640                                 fl_set_input(bbox_->input_bb_x0, token(bb,' ',0).c_str());
 641                                 fl_set_input(bbox_->input_bb_y0, token(bb,' ',1).c_str());
 642                                 fl_set_input(bbox_->input_bb_x1, token(bb,' ',2).c_str());
 643                                 fl_set_input(bbox_->input_bb_y1, token(bb,' ',3).c_str());
 644                                 fl_set_choice_text(bbox_->choice_bb_units, "bp");
 645                         }
 646                         controller().bbChanged = false;
 647                 } else {
 648                         fl_set_input(bbox_->input_bb_x0, "");
 649                         fl_set_input(bbox_->input_bb_y0, "");
 650                         fl_set_input(bbox_->input_bb_x1, "");
 651                         fl_set_input(bbox_->input_bb_y1, "");
 652                         fl_set_choice_text(bbox_->choice_bb_units, "bp");
 653                 }
 654         // the extra section
 655         } else if (ob == extra_->check_subcaption) {
 656                 setEnabled(extra_->input_subcaption,
 657                            fl_get_button(extra_->check_subcaption));
 658
 659         } else if (ob == file_->button_edit) {
 660                 activate = ButtonPolicy::SMI_NOOP;
 661                 controller().editGraphics();
 662         }
 663
 664
 665         return activate;
 666 }
 667
 668 } // namespace frontend
 669 } // namespace lyx