src/frontends/xforms/FormGraphics.C

   1 /* This file is part of
   2  * ======================================================
   3  *
   4  *           LyX, The Document Processor
   5  *
   6  *           Copyright 2000-2001 The LyX Team.
   7  *
   8  * ======================================================
   9  *
  10  * \file FormGraphics.C
  11  * \author Baruch Even, baruch.even@writeme.com
  12  * \author Herbert Voss, voss@perce.de
  13  */
  14
  15 #include <config.h>
  16
  17 #ifdef __GNUG__
  18 #pragma implementation
  19 #endif
  20
  21 #include "xformsBC.h"
  22 #include "ControlGraphics.h"
  23 #include "FormGraphics.h"
  24 #include "form_graphics.h"
  25
  26 #include "xforms_helpers.h"
  27 #include "input_validators.h"
  28 #include "debug.h" // for lyxerr
  29 #include "support/lstrings.h"  // for strToDbl & tostr
  30 #include "support/FileInfo.h"
  31 #include "support/filetools.h"  // for MakeAbsPath etc
  32 #include "insets/insetgraphicsParams.h"
  33 #include "lyxrc.h" // for lyxrc.display_graphics
  34
  35 using std::endl;
  36
  37 namespace {
  38
  39 // Bound the number of input characters
  40 int const SCALE_MAXDIGITS = 3;
  41 int const WIDTH_MAXDIGITS = 10;
  42 int const HEIGHT_MAXDIGITS = 10;
  43 int const ROTATE_MAXCHARS = 4;
  44 int const FILENAME_MAXCHARS = 1024;
  45
  46 } // namespace anon
  47
  48
  49 typedef FormCB<ControlGraphics, FormDB<FD_form_graphics> > base_class;
  50
  51 FormGraphics::FormGraphics(ControlGraphics & c)
  52         : base_class(c, _("Graphics"), false)
  53 {}
  54
  55
  56 void FormGraphics::redraw()
  57 {
  58         if(form() && form()->visible)
  59                 fl_redraw_form(form());
  60         else
  61                 return;
  62         FL_FORM * outer_form = fl_get_active_folder(dialog_->tabFolder);
  63         if (outer_form && outer_form->visible)
  64                 fl_redraw_form(outer_form);
  65 }
  66
  67
  68 void FormGraphics::build()
  69 {
  70         dialog_.reset(build_graphics());
  71
  72         // Manage the ok, apply, restore and cancel/close buttons
  73         bc().setOK(dialog_->button_ok);
  74         bc().setApply(dialog_->button_apply);
  75         bc().setCancel(dialog_->button_cancel);
  76         bc().setRestore(dialog_->button_restore);
  77
  78         // the file section
  79         file_.reset(build_file());
  80
  81         fl_set_input_return (file_->input_filename, FL_RETURN_CHANGED);
  82         fl_set_input_return (file_->input_subcaption, FL_RETURN_CHANGED);
  83         fl_set_input_return (file_->input_rotate_angle, FL_RETURN_CHANGED);
  84         fl_set_input_maxchars(file_->input_filename,  FILENAME_MAXCHARS);
  85         fl_set_input_maxchars(file_->input_rotate_angle, ROTATE_MAXCHARS);
  86         fl_set_input_filter(file_->input_rotate_angle, fl_float_filter);
  87
  88         string const choice_origin =
  89             "center|"                                   // c
  90             "leftTop|leftBottom|leftBaseline|"          // lt lb lB
  91             "centerTop|centerBottom|centerBaseline|"    // ct cb cB
  92             "rightTop|rightBottom|rightBaseline";       // rt rb rB
  93         fl_addto_choice(file_->choice_origin, choice_origin.c_str());
  94
  95         bc().addReadOnly(file_->button_browse);
  96         bc().addReadOnly(file_->check_subcaption);
  97         bc().addReadOnly(file_->check_rotate);
  98         bc().addReadOnly(file_->button_clip);
  99         bc().addReadOnly(file_->button_draft);
 100
 101         // the lyxview section
 102         lyxview_.reset(build_lyxview());
 103
 104         fl_set_input_return (lyxview_->input_lyxwidth, FL_RETURN_CHANGED);
 105         fl_set_input_return (lyxview_->input_lyxheight, FL_RETURN_CHANGED);
 106         fl_set_input_return (lyxview_->input_lyxscale, FL_RETURN_CHANGED);
 107
 108         fl_addto_choice(lyxview_->choice_width_lyxwidth, choice_Length_WithUnit.c_str());
 109         fl_addto_choice(lyxview_->choice_width_lyxheight, choice_Length_WithUnit.c_str());
 110
 111         bc().addReadOnly(lyxview_->radio_pref);
 112         bc().addReadOnly(lyxview_->radio_mono);
 113         bc().addReadOnly(lyxview_->radio_gray);
 114         bc().addReadOnly(lyxview_->radio_color);
 115         bc().addReadOnly(lyxview_->radio_nodisplay);
 116
 117         // the size section
 118         size_.reset(build_size());
 119
 120         fl_set_input_return (size_->input_scale, FL_RETURN_CHANGED);
 121         fl_set_input_return (size_->input_width, FL_RETURN_CHANGED);
 122         fl_set_input_return (size_->input_height, FL_RETURN_CHANGED);
 123
 124         fl_set_input_maxchars(size_->input_scale, SCALE_MAXDIGITS);
 125         fl_set_input_maxchars(size_->input_width, WIDTH_MAXDIGITS);
 126         fl_set_input_maxchars(size_->input_height, HEIGHT_MAXDIGITS);
 127
 128         fl_set_input_filter(size_->input_scale,  fl_unsigned_float_filter);
 129
 130         fl_addto_choice(size_->choice_width_units, choice_Length_All.c_str());
 131         fl_addto_choice(size_->choice_height_units, choice_Length_All.c_str());
 132
 133         bc().addReadOnly(size_->button_asis);
 134         bc().addReadOnly(size_->button_wh);
 135         bc().addReadOnly(size_->button_scale);
 136         bc().addReadOnly(size_->check_aspectratio);
 137
 138         // the bounding box selection
 139         bbox_.reset(build_bbox());
 140         fl_set_input_return (bbox_->input_bb_x0, FL_RETURN_CHANGED);
 141         fl_set_input_return (bbox_->input_bb_y0, FL_RETURN_CHANGED);
 142         fl_set_input_return (bbox_->input_bb_x1, FL_RETURN_CHANGED);
 143         fl_set_input_return (bbox_->input_bb_y1, FL_RETURN_CHANGED);
 144
 145         string const bb_units = "pt|cm|in";
 146         fl_addto_choice(bbox_->choice_bb_x0, bb_units.c_str());
 147         fl_addto_choice(bbox_->choice_bb_y0, bb_units.c_str());
 148         fl_addto_choice(bbox_->choice_bb_x1, bb_units.c_str());
 149         fl_addto_choice(bbox_->choice_bb_y1, bb_units.c_str());
 150         bc().addReadOnly(bbox_->button_getBB);
 151
 152         // the rotate section
 153         special_.reset(build_special());
 154
 155         fl_set_input_return (special_->input_special, FL_RETURN_CHANGED);
 156
 157         // add the different tabfolders
 158         fl_addto_tabfolder(dialog_->tabFolder, _("File"), file_->form);
 159         fl_addto_tabfolder(dialog_->tabFolder, _("LyX View"), lyxview_->form);
 160         fl_addto_tabfolder(dialog_->tabFolder, _("LaTeX Size"), size_->form);
 161         fl_addto_tabfolder(dialog_->tabFolder, _("Bounding Box"), bbox_->form);
 162         fl_addto_tabfolder(dialog_->tabFolder, _("Extras"), special_->form);
 163 }
 164
 165
 166 void FormGraphics::apply()
 167 {
 168         // Create the parameters structure and fill the data from the dialog.
 169         InsetGraphicsParams & igp = controller().params();
 170
 171         // the file section
 172         igp.filename = getStringFromInput(file_->input_filename);
 173         igp.subcaption = fl_get_button(file_->check_subcaption);
 174         igp.subcaptionText = getStringFromInput(file_->input_subcaption);
 175         igp.rotate = fl_get_button(file_->check_rotate);
 176         igp.rotateAngle =
 177                 strToDbl(getStringFromInput(file_->input_rotate_angle));
 178         while (igp.rotateAngle < 0.0 || igp.rotateAngle > 360.0) {
 179                 if (igp.rotateAngle < 0.0) {
 180                         igp.rotateAngle += 360.0;
 181                 } else if (igp.rotateAngle > 360.0) {
 182                         igp.rotateAngle -= 360.0;
 183                 }
 184         }
 185         if (fl_get_choice(file_->choice_origin) > 0)
 186             igp.rotateOrigin = fl_get_choice_text(file_->choice_origin);
 187         else
 188             igp.rotateOrigin = string();
 189         igp.draft = fl_get_button(file_->button_draft);
 190         igp.clip = fl_get_button(file_->button_clip);
 191
 192         // the lyxview section
 193         if (fl_get_button(lyxview_->radio_pref))
 194             igp.display = InsetGraphicsParams::DEFAULT;
 195         else if (fl_get_button(lyxview_->radio_mono))
 196             igp.display = InsetGraphicsParams::MONOCHROME;
 197         else if (fl_get_button(lyxview_->radio_gray))
 198             igp.display = InsetGraphicsParams::GRAYSCALE;
 199         else if (fl_get_button(lyxview_->radio_color))
 200             igp.display = InsetGraphicsParams::COLOR;
 201         else if (fl_get_button(lyxview_->radio_nodisplay))
 202             igp.display = InsetGraphicsParams::NONE;
 203
 204         if (fl_get_button(lyxview_->button_lyxasis))
 205             igp.lyxsize_type = InsetGraphicsParams::DEFAULT_SIZE;
 206         else if (fl_get_button(lyxview_->button_lyxwh))
 207             igp.lyxsize_type = InsetGraphicsParams::WH;
 208         else
 209             igp.lyxsize_type = InsetGraphicsParams::SCALE;
 210         igp.lyxwidth = LyXLength(getLengthFromWidgets(lyxview_->input_lyxwidth,
 211                 lyxview_->choice_width_lyxwidth));
 212         igp.lyxheight = LyXLength(getLengthFromWidgets(lyxview_->input_lyxheight,
 213                 lyxview_->choice_width_lyxheight));
 214         igp.lyxscale = strToInt(getStringFromInput(lyxview_->input_lyxscale));
 215
 216         // the size section
 217         if (fl_get_button(size_->button_asis))
 218             igp.size_type = InsetGraphicsParams::DEFAULT_SIZE;
 219         else if (fl_get_button(size_->button_wh))
 220             igp.size_type = InsetGraphicsParams::WH;
 221         else
 222             igp.size_type = InsetGraphicsParams::SCALE;
 223         igp.width = LyXLength(getLengthFromWidgets(size_->input_width,
 224                 size_->choice_width_units));
 225         igp.height = LyXLength(getLengthFromWidgets(size_->input_height,
 226                 size_->choice_height_units));
 227         igp.scale = strToInt(getStringFromInput(size_->input_scale));
 228         igp.keepAspectRatio = fl_get_button(size_->check_aspectratio);
 229
 230         // the bb section
 231         if (!controller().bbChanged)            // different to the original one?
 232             igp.bb = string();                  // don't write anything
 233         else {
 234             string bb;
 235             if (getStringFromInput(bbox_->input_bb_x0).empty())
 236                 bb = "0 ";
 237             else
 238                 bb = getLengthFromWidgets(bbox_->input_bb_x0,
 239                         bbox_->choice_bb_x0)+" ";
 240             if (getStringFromInput(bbox_->input_bb_y0).empty())
 241                 bb += "0 ";
 242             else
 243                 bb += (getLengthFromWidgets(bbox_->input_bb_y0,
 244                         bbox_->choice_bb_y0)+" ");
 245             if (getStringFromInput(bbox_->input_bb_x1).empty())
 246                 bb += "0 ";
 247             else
 248                 bb += (getLengthFromWidgets(bbox_->input_bb_x1,
 249                         bbox_->choice_bb_x1)+" ");
 250             if (getStringFromInput(bbox_->input_bb_y1).empty())
 251                 bb += "0 ";
 252             else
 253                 bb += (getLengthFromWidgets(bbox_->input_bb_y1,
 254                         bbox_->choice_bb_y1)+" ");
 255             igp.bb = bb;
 256         }
 257
 258         // the special section
 259         igp.special = getStringFromInput(special_->input_special);
 260 }
 261
 262
 263 void FormGraphics::update() {
 264         string unit = "cm";
 265         if (lyxrc.default_papersize < 3)
 266             unit = "in";
 267         string const defaultUnit = string(unit);
 268         // Update dialog with details from inset
 269         InsetGraphicsParams & igp = controller().params();
 270
 271         // the file section
 272         fl_set_input(file_->input_filename, igp.filename.c_str());
 273         fl_set_button(file_->check_subcaption, igp.subcaption);
 274         fl_set_input(file_->input_subcaption, igp.subcaptionText.c_str());
 275         setEnabled(file_->input_subcaption,
 276                    fl_get_button(file_->check_subcaption));
 277         fl_set_button(file_->check_rotate, igp.rotate);
 278         fl_set_input(file_->input_rotate_angle,
 279                      tostr(igp.rotateAngle).c_str());
 280         if (igp.rotateOrigin.empty())
 281             fl_set_choice(file_->choice_origin,0);
 282         else
 283             fl_set_choice_text(file_->choice_origin,igp.rotateOrigin.c_str());
 284         setEnabled(file_->input_rotate_angle,
 285                    fl_get_button(file_->check_rotate));
 286         setEnabled(file_->choice_origin,
 287                    fl_get_button(file_->check_rotate));
 288         fl_set_button(file_->button_draft, igp.draft);
 289         fl_set_button(file_->button_clip, igp.clip);
 290
 291         // the lyxview section
 292         switch (igp.display) {
 293         case InsetGraphicsParams::DEFAULT:
 294                 fl_set_button(lyxview_->radio_pref, 1);
 295                 break;
 296         case InsetGraphicsParams::MONOCHROME:
 297                 fl_set_button(lyxview_->radio_mono, 1);
 298                 break;
 299         case InsetGraphicsParams::GRAYSCALE:
 300                 fl_set_button(lyxview_->radio_gray, 1);
 301                 break;
 302         case InsetGraphicsParams::COLOR:
 303                 fl_set_button(lyxview_->radio_color, 1);
 304                 break;
 305         case InsetGraphicsParams::NONE:
 306                 fl_set_button(lyxview_->radio_nodisplay, 1);
 307                 break;
 308         }
 309         updateWidgetsFromLength(lyxview_->input_lyxwidth,
 310                 lyxview_->choice_width_lyxwidth, igp.lyxwidth,defaultUnit);
 311         updateWidgetsFromLength(lyxview_->input_lyxheight,
 312                 lyxview_->choice_width_lyxheight, igp.lyxheight,defaultUnit);
 313         fl_set_input(lyxview_->input_lyxscale, tostr(igp.lyxscale).c_str());
 314         switch (igp.lyxsize_type) {
 315             case InsetGraphicsParams::DEFAULT_SIZE: {
 316                 fl_set_button(lyxview_->button_lyxasis,1);
 317                 setEnabled(lyxview_->input_lyxwidth, 0);
 318                 setEnabled(lyxview_->choice_width_lyxwidth, 0);
 319                 setEnabled(lyxview_->input_lyxheight, 0);
 320                 setEnabled(lyxview_->choice_width_lyxheight, 0);
 321                 setEnabled(lyxview_->input_lyxscale, 0);
 322                 break;
 323             }
 324             case InsetGraphicsParams::WH: {
 325                 fl_set_button(lyxview_->button_lyxwh, 1);
 326                 setEnabled(lyxview_->input_lyxwidth, 1);
 327                 setEnabled(lyxview_->choice_width_lyxwidth, 1);
 328                 setEnabled(lyxview_->input_lyxheight, 1);
 329                 setEnabled(lyxview_->choice_width_lyxheight, 1);
 330                 setEnabled(lyxview_->input_lyxscale, 0);
 331                 break;
 332             }
 333             case InsetGraphicsParams::SCALE: {
 334                 fl_set_button(lyxview_->button_lyxscale, 1);
 335                 setEnabled(lyxview_->input_lyxwidth, 0);
 336                 setEnabled(lyxview_->choice_width_lyxwidth, 0);
 337                 setEnabled(lyxview_->input_lyxheight, 0);
 338                 setEnabled(lyxview_->choice_width_lyxheight, 0);
 339                 setEnabled(lyxview_->input_lyxscale, 1);
 340                 break;
 341             }
 342         }
 343
 344         // the size section
 345         // Update the draft and clip mode
 346         updateWidgetsFromLength(size_->input_width,
 347                 size_->choice_width_units,igp.width,defaultUnit);
 348         updateWidgetsFromLength(size_->input_height,
 349                 size_->choice_height_units,igp.height,defaultUnit);
 350         fl_set_input(size_->input_scale, tostr(igp.scale).c_str());
 351         switch (igp.size_type) {
 352             case InsetGraphicsParams::DEFAULT_SIZE: {
 353                 fl_set_button(size_->button_asis,1);
 354                 setEnabled(size_->input_width, 0);
 355                 setEnabled(size_->choice_width_units, 0);
 356                 setEnabled(size_->input_height, 0);
 357                 setEnabled(size_->choice_height_units, 0);
 358                 setEnabled(size_->check_aspectratio, 0);
 359                 setEnabled(size_->input_scale, 0);
 360                 break;
 361             }
 362             case InsetGraphicsParams::WH: {
 363                 fl_set_button(size_->button_wh, 1);
 364                 setEnabled(size_->input_width, 1);
 365                 setEnabled(size_->choice_width_units, 1);
 366                 setEnabled(size_->input_height, 1);
 367                 setEnabled(size_->choice_height_units, 1);
 368                 setEnabled(size_->check_aspectratio, 1);
 369                 setEnabled(size_->input_scale, 0);
 370                 break;
 371             }
 372             case InsetGraphicsParams::SCALE: {
 373                 fl_set_button(size_->button_scale, 1);
 374                 setEnabled(size_->input_width, 0);
 375                 setEnabled(size_->choice_width_units, 0);
 376                 setEnabled(size_->input_height, 0);
 377                 setEnabled(size_->choice_height_units, 0);
 378                 setEnabled(size_->check_aspectratio, 0);
 379                 setEnabled(size_->input_scale, 1);
 380                 break;
 381             }
 382         }
 383         fl_set_button(size_->check_aspectratio, igp.keepAspectRatio);
 384
 385         // the bb section
 386         // set the bounding box values, if exists. First we need the whole
 387         // path, because the controller knows nothing about the doc-dir
 388         lyxerr << "GraphicsUpdate::BoundingBox = " << igp.bb << "\n";
 389         controller().bbChanged = false;
 390         if (igp.bb.empty()) {
 391             string const fileWithAbsPath = MakeAbsPath(igp.filename, OnlyPath(igp.filename));
 392             string bb = controller().readBB(fileWithAbsPath);
 393             lyxerr << "file::BoundingBox = " << bb << "\n";
 394             if (!bb.empty()) {
 395                 // get the values from the file
 396                 // in this case we always have the point-unit
 397                 fl_set_input(bbox_->input_bb_x0, token(bb,' ',0).c_str());
 398                 fl_set_input(bbox_->input_bb_y0, token(bb,' ',1).c_str());
 399                 fl_set_input(bbox_->input_bb_x1, token(bb,' ',2).c_str());
 400                 fl_set_input(bbox_->input_bb_y1, token(bb,' ',3).c_str());
 401             }
 402         } else {                                // get the values from the inset
 403             controller().bbChanged = true;
 404             LyXLength anyLength;
 405             anyLength = LyXLength(token(igp.bb,' ',0));
 406             updateWidgetsFromLength(bbox_->input_bb_x0,
 407                         bbox_->choice_bb_x0,anyLength,"pt");
 408             anyLength = LyXLength(token(igp.bb,' ',1));
 409             updateWidgetsFromLength(bbox_->input_bb_y0,
 410                         bbox_->choice_bb_y0,anyLength,"pt");
 411             anyLength = LyXLength(token(igp.bb,' ',2));
 412             updateWidgetsFromLength(bbox_->input_bb_x1,
 413                         bbox_->choice_bb_x1,anyLength,"pt");
 414             anyLength = LyXLength(token(igp.bb,' ',3));
 415             updateWidgetsFromLength(bbox_->input_bb_y1,
 416                         bbox_->choice_bb_y1,anyLength,"pt");
 417         }
 418
 419         // the special section
 420         fl_set_input(special_->input_special, igp.special.c_str());
 421 }
 422
 423
 424 namespace {
 425
 426 bool isValid(FL_OBJECT * ob)
 427 {
 428         string const input = getStringFromInput(ob);
 429         return input.empty() || isValidLength(input) || isStrDbl(input);
 430 }
 431
 432 } // namespace anon
 433
 434
 435
 436 ButtonPolicy::SMInput FormGraphics::input(FL_OBJECT * ob, long)
 437 {
 438         // the file section
 439         if (ob == file_->button_browse) {
 440                 // Get the filename from the dialog
 441                 string const in_name = getStringFromInput(file_->input_filename);
 442                 string const out_name = controller().Browse(in_name);
 443                 if (out_name != in_name && !out_name.empty()) {
 444                         fl_set_input(file_->input_filename, out_name.c_str());
 445                 }
 446         } else if (ob == file_->check_subcaption) {
 447                 setEnabled(file_->input_subcaption,
 448                            fl_get_button(file_->check_subcaption));
 449         } else if (ob == file_->check_rotate) {
 450                 setEnabled(file_->input_rotate_angle,
 451                            fl_get_button(file_->check_rotate));
 452                 setEnabled(file_->choice_origin,
 453                            fl_get_button(file_->check_rotate));
 454
 455         // the lyxview section
 456         } else if (ob == lyxview_->button_lyxasis) {
 457                 setEnabled(lyxview_->input_lyxwidth, 0);
 458                 setEnabled(lyxview_->choice_width_lyxwidth, 0);
 459                 setEnabled(lyxview_->input_lyxheight, 0);
 460                 setEnabled(lyxview_->choice_width_lyxheight, 0);
 461                 setEnabled(lyxview_->input_lyxscale, 0);
 462         } else if (ob == lyxview_->button_lyxwh) {
 463                 setEnabled(lyxview_->input_lyxwidth, 1);
 464                 setEnabled(lyxview_->choice_width_lyxwidth, 1);
 465                 setEnabled(lyxview_->input_lyxheight, 1);
 466                 setEnabled(lyxview_->choice_width_lyxheight, 1);
 467                 setEnabled(lyxview_->input_lyxscale, 0);
 468         } else if (ob == lyxview_->button_lyxscale) {
 469                 setEnabled(lyxview_->input_lyxwidth, 0);
 470                 setEnabled(lyxview_->choice_width_lyxwidth, 0);
 471                 setEnabled(lyxview_->input_lyxheight, 0);
 472                 setEnabled(lyxview_->choice_width_lyxheight, 0);
 473                 setEnabled(lyxview_->input_lyxscale, 1);
 474
 475         // the bb section
 476         } else if (!controller().bbChanged &&
 477                    (ob == bbox_->input_bb_x0  || ob == bbox_->input_bb_y0 ||
 478                     ob == bbox_->input_bb_x1  || ob == bbox_->input_bb_y1 ||
 479                     ob == bbox_->choice_bb_x0 || ob == bbox_->choice_bb_y0 ||
 480                     ob == bbox_->choice_bb_x1 || ob == bbox_->choice_bb_y1)) {
 481             controller().bbChanged = true;
 482         } else if (ob == bbox_->button_getBB) {
 483             string const filename = getStringFromInput(file_->input_filename);
 484             if (!filename.empty()) {
 485                 string const fileWithAbsPath = MakeAbsPath(filename, OnlyPath(filename));
 486                 string bb = controller().readBB(fileWithAbsPath);
 487                 lyxerr << "getBB::BoundingBox = " << bb << "\n";
 488                 if (!bb.empty()) {
 489                         updateWidgetsFromLengthString(bbox_->input_bb_x0,
 490                                                       bbox_->choice_bb_x0,
 491                                                       token(bb,' ',0), "pt");
 492                         updateWidgetsFromLengthString(bbox_->input_bb_y0,
 493                                                       bbox_->choice_bb_y0,
 494                                                       token(bb,' ',1), "pt");
 495                         updateWidgetsFromLengthString(bbox_->input_bb_x1,
 496                                                       bbox_->choice_bb_x1,
 497                                                       token(bb,' ',2), "pt");
 498                         updateWidgetsFromLengthString(bbox_->input_bb_y1,
 499                                                       bbox_->choice_bb_y1,
 500                                                       token(bb,' ',3), "pt");
 501                 }
 502                 controller().bbChanged = false;
 503             }
 504
 505         // the size section
 506         } else if (ob == size_->button_asis) {
 507                 setEnabled(size_->input_width, 0);
 508                 setEnabled(size_->choice_width_units, 0);
 509                 setEnabled(size_->input_height, 0);
 510                 setEnabled(size_->choice_height_units, 0);
 511                 setEnabled(size_->check_aspectratio, 0);
 512                 setEnabled(size_->input_scale, 0);
 513         } else if (ob == size_->button_wh) {
 514                 setEnabled(size_->input_width, 1);
 515                 setEnabled(size_->choice_width_units, 1);
 516                 setEnabled(size_->input_height, 1);
 517                 setEnabled(size_->choice_height_units, 1);
 518                 setEnabled(size_->check_aspectratio, 1);
 519                 setEnabled(size_->input_scale, 0);
 520         } else if (ob == size_->button_scale) {
 521                 setEnabled(size_->input_width, 0);
 522                 setEnabled(size_->choice_width_units, 0);
 523                 setEnabled(size_->input_height, 0);
 524                 setEnabled(size_->choice_height_units, 0);
 525                 setEnabled(size_->check_aspectratio, 0);
 526                 setEnabled(size_->input_scale, 1);
 527         }
 528
 529         // check if the input is valid
 530         bool invalid = !isValid(bbox_->input_bb_x0);
 531         invalid = invalid || !isValid(bbox_->input_bb_x1);
 532         invalid = invalid || !isValid(bbox_->input_bb_y0);
 533         invalid = invalid || !isValid(bbox_->input_bb_y1);
 534         invalid = invalid || !isValid(size_->input_width);
 535         invalid = invalid || !isValid(size_->input_height);
 536         invalid = invalid || !isValid(lyxview_->input_lyxwidth);
 537         invalid = invalid || !isValid(lyxview_->input_lyxheight);
 538
 539         // deactivate OK/ Apply buttons and
 540         // spit out warnings if invalid
 541         if (ob == bbox_->input_bb_x0 || ob == bbox_->input_bb_x1 ||
 542             ob == bbox_->input_bb_y0 || ob == bbox_->input_bb_y1 ||
 543             ob == size_->input_width || ob == size_->input_height ||
 544             ob == lyxview_->input_lyxwidth || ob == lyxview_->input_lyxheight) {
 545                 if (invalid) {
 546                         fl_set_object_label(dialog_->text_warning,
 547                                 _("Warning: Invalid Length!"));
 548                         fl_show_object(dialog_->text_warning);
 549                         return ButtonPolicy::SMI_INVALID;
 550                 } else {
 551                         fl_hide_object(dialog_->text_warning);
 552                 }
 553         }
 554
 555         return ButtonPolicy::SMI_VALID;
 556 }
 557