src/frontends/qt4/QGraphics.cpp

   1 /**
   2  * \file QGraphics.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 Edwin Leuven
   8  * \author Herbert Voß
   9  * \author Richard Heck
  10  *
  11  * Full author contact details are available in file CREDITS.
  12  */
  13
  14 #include <config.h>
  15
  16 #include "QGraphics.h"
  17
  18 #include "CheckedLineEdit.h"
  19 #include "LengthCombo.h"
  20 #include "QGraphicsDialog.h"
  21 #include "Qt2BC.h"
  22 #include "qt_helpers.h"
  23
  24 #include "lengthcommon.h"
  25 #include "LyXRC.h"
  26
  27 #include "controllers/ControlGraphics.h"
  28 #include "controllers/frontend_helpers.h"
  29
  30 #include "insets/InsetGraphicsParams.h"
  31
  32 #include "support/convert.h"
  33 #include "support/lstrings.h"
  34 #include "support/lyxlib.h"
  35 #include "support/os.h"
  36
  37 #include <QLineEdit>
  38 #include <QPushButton>
  39 #include <QCheckBox>
  40 #include <QLabel>
  41
  42 #include <cmath>
  43
  44 using lyx::support::float_equal;
  45 using lyx::support::token;
  46
  47 using lyx::support::os::internal_path;
  48
  49 #ifndef CXX_GLOBAL_CSTD
  50 using std::floor;
  51 #endif
  52
  53 using std::vector;
  54 using std::string;
  55
  56 namespace lyx {
  57 namespace frontend {
  58
  59 typedef QController<ControlGraphics, QView<QGraphicsDialog> > graphics_base_class;
  60
  61 QGraphics::QGraphics(Dialog & parent)
  62         : graphics_base_class(parent, _("Graphics"))
  63 {
  64 }
  65
  66
  67 void QGraphics::build_dialog()
  68 {
  69         dialog_.reset(new QGraphicsDialog(this));
  70
  71         bcview().setOK(dialog_->okPB);
  72         bcview().setApply(dialog_->applyPB);
  73         bcview().setRestore(dialog_->restorePB);
  74         bcview().setCancel(dialog_->closePB);
  75
  76         bcview().addReadOnly(dialog_->latexoptions);
  77         bcview().addReadOnly(dialog_->subfigure);
  78         bcview().addReadOnly(dialog_->filenameL);
  79         bcview().addReadOnly(dialog_->filename);
  80         bcview().addReadOnly(dialog_->browsePB);
  81         bcview().addReadOnly(dialog_->unzipCB);
  82         bcview().addReadOnly(dialog_->bbFrame);
  83         bcview().addReadOnly(dialog_->draftCB);
  84         bcview().addReadOnly(dialog_->clip);
  85         bcview().addReadOnly(dialog_->unzipCB);
  86         bcview().addReadOnly(dialog_->displayGB);
  87         bcview().addReadOnly(dialog_->sizeGB);
  88         bcview().addReadOnly(dialog_->rotationGB);
  89         bcview().addReadOnly(dialog_->latexoptions);
  90         bcview().addReadOnly(dialog_->getPB);
  91         bcview().addReadOnly(dialog_->rotateOrderCB);
  92
  93         // initialize the length validator
  94         addCheckedLineEdit(bcview(), dialog_->Scale, dialog_->scaleCB);
  95         addCheckedLineEdit(bcview(), dialog_->Width, dialog_->WidthCB);
  96         addCheckedLineEdit(bcview(), dialog_->Height, dialog_->HeightCB);
  97         addCheckedLineEdit(bcview(), dialog_->displayscale, dialog_->scaleLA);
  98         addCheckedLineEdit(bcview(), dialog_->angle, dialog_->angleL);
  99         addCheckedLineEdit(bcview(), dialog_->lbX, dialog_->xL);
 100         addCheckedLineEdit(bcview(), dialog_->lbY, dialog_->yL);
 101         addCheckedLineEdit(bcview(), dialog_->rtX, dialog_->xL_2);
 102         addCheckedLineEdit(bcview(), dialog_->rtY, dialog_->yL_2);
 103         addCheckedLineEdit(bcview(), dialog_->filename, dialog_->filenameL);
 104 }
 105
 106
 107 namespace {
 108
 109 // returns the number of the string s in the vector v
 110 int getItemNo(vector<string> v, string const & s) {
 111         vector<string>::const_iterator cit =
 112                     find(v.begin(), v.end(), s);
 113         return (cit != v.end()) ? int(cit - v.begin()) : 0;
 114 }
 115
 116 }
 117
 118
 119 void QGraphics::update_contents()
 120 {
 121         // clear and fill in the comboboxes
 122         vector<string> const bb_units = frontend::getBBUnits();
 123         dialog_->lbXunit->clear();
 124         dialog_->lbYunit->clear();
 125         dialog_->rtXunit->clear();
 126         dialog_->rtYunit->clear();
 127         for (vector<string>::const_iterator it = bb_units.begin();
 128             it != bb_units.end(); ++it) {
 129                 dialog_->lbXunit->addItem(toqstr(*it));
 130                 dialog_->lbYunit->addItem(toqstr(*it));
 131                 dialog_->rtXunit->addItem(toqstr(*it));
 132                 dialog_->rtYunit->addItem(toqstr(*it));
 133         }
 134
 135         InsetGraphicsParams & igp = controller().params();
 136
 137         // set the right default unit
 138         Length::UNIT unitDefault = Length::CM;
 139         switch (lyxrc.default_papersize) {
 140                 case PAPER_USLETTER:
 141                 case PAPER_USLEGAL:
 142                 case PAPER_USEXECUTIVE:
 143                         unitDefault = Length::IN;
 144                         break;
 145                 default:
 146                         break;
 147         }
 148
 149         string const name =
 150                 igp.filename.outputFilename(kernel().bufferFilepath());
 151         dialog_->filename->setText(toqstr(name));
 152
 153         // set the bounding box values
 154         if (igp.bb.empty()) {
 155                 string const bb = controller().readBB(igp.filename.absFilename());
 156                 // the values from the file always have the bigpoint-unit bp
 157                 dialog_->lbX->setText(toqstr(token(bb, ' ', 0)));
 158                 dialog_->lbY->setText(toqstr(token(bb, ' ', 1)));
 159                 dialog_->rtX->setText(toqstr(token(bb, ' ', 2)));
 160                 dialog_->rtY->setText(toqstr(token(bb, ' ', 3)));
 161                 dialog_->lbXunit->setCurrentIndex(0);
 162                 dialog_->lbYunit->setCurrentIndex(0);
 163                 dialog_->rtXunit->setCurrentIndex(0);
 164                 dialog_->rtYunit->setCurrentIndex(0);
 165                 controller().bbChanged = false;
 166         } else {
 167                 // get the values from the inset
 168                 Length anyLength;
 169                 string const xl(token(igp.bb, ' ', 0));
 170                 string const yl(token(igp.bb, ' ', 1));
 171                 string const xr(token(igp.bb, ' ', 2));
 172                 string const yr(token(igp.bb, ' ', 3));
 173                 if (isValidLength(xl, &anyLength)) {
 174                         dialog_->lbX->setText(toqstr(convert<string>(anyLength.value())));
 175                         string const unit(unit_name[anyLength.unit()]);
 176                         dialog_->lbXunit->setCurrentIndex(getItemNo(bb_units, unit));
 177                 } else {
 178                         dialog_->lbX->setText(toqstr(xl));
 179                 }
 180                 if (isValidLength(yl, &anyLength)) {
 181                         dialog_->lbY->setText(toqstr(convert<string>(anyLength.value())));
 182                         string const unit(unit_name[anyLength.unit()]);
 183                         dialog_->lbYunit->setCurrentIndex(getItemNo(bb_units, unit));
 184                 } else {
 185                         dialog_->lbY->setText(toqstr(xl));
 186                 }
 187                 if (isValidLength(xr, &anyLength)) {
 188                         dialog_->rtX->setText(toqstr(convert<string>(anyLength.value())));
 189                         string const unit(unit_name[anyLength.unit()]);
 190                         dialog_->rtXunit->setCurrentIndex(getItemNo(bb_units, unit));
 191                 } else {
 192                         dialog_->rtX->setText(toqstr(xl));
 193                 }
 194                 if (isValidLength(yr, &anyLength)) {
 195                         dialog_->rtY->setText(toqstr(convert<string>(anyLength.value())));
 196                         string const unit(unit_name[anyLength.unit()]);
 197                         dialog_->rtYunit->setCurrentIndex(getItemNo(bb_units, unit));
 198                 } else {
 199                         dialog_->rtY->setText(toqstr(xl));
 200                 }
 201                 controller().bbChanged = true;
 202         }
 203
 204         // Update the draft and clip mode
 205         dialog_->draftCB->setChecked(igp.draft);
 206         dialog_->clip->setChecked(igp.clip);
 207         dialog_->unzipCB->setChecked(igp.noUnzip);
 208
 209         // Update the subcaption check button and input field
 210         dialog_->subfigure->setChecked(igp.subcaption);
 211         dialog_->subcaption->setText(toqstr(igp.subcaptionText));
 212
 213         int item = 0;
 214         switch (igp.display) {
 215                 case graphics::DefaultDisplay: item = 0; break;
 216                 case graphics::MonochromeDisplay: item = 1; break;
 217                 case graphics::GrayscaleDisplay: item = 2; break;
 218                 case graphics::ColorDisplay: item = 3; break;
 219                 case graphics::NoDisplay: item = 0; break;
 220         }
 221         dialog_->showCB->setCurrentIndex(item);
 222         dialog_->displayscale->setText(toqstr(convert<string>(igp.lyxscale)));
 223         dialog_->displayGB->setChecked(igp.display != graphics::NoDisplay);
 224
 225         // the output section (width/height)
 226
 227         dialog_->Scale->setText(toqstr(igp.scale));
 228         //igp.scale defaults to 100, so we treat it as empty
 229         bool const scaleChecked = !igp.scale.empty() && igp.scale != "100";
 230         dialog_->scaleCB->blockSignals(true);
 231         dialog_->scaleCB->setChecked(scaleChecked);
 232         dialog_->scaleCB->blockSignals(false);
 233         dialog_->Scale->setEnabled(scaleChecked);
 234
 235         lengthAutoToWidgets(dialog_->Width, dialog_->widthUnit, igp.width,
 236                 unitDefault);
 237         bool const widthChecked = !dialog_->Width->text().isEmpty() &&
 238                 dialog_->Width->text() != "auto";
 239         dialog_->WidthCB->blockSignals(true);
 240         dialog_->WidthCB->setChecked(widthChecked);
 241         dialog_->WidthCB->blockSignals(false);
 242         dialog_->Width->setEnabled(widthChecked);
 243         dialog_->widthUnit->setEnabled(widthChecked);
 244
 245         lengthAutoToWidgets(dialog_->Height, dialog_->heightUnit, igp.height,
 246                 unitDefault);
 247         bool const heightChecked = !dialog_->Height->text().isEmpty()
 248                 && dialog_->Height->text() != "auto";
 249         dialog_->HeightCB->blockSignals(true);
 250         dialog_->HeightCB->setChecked(heightChecked);
 251         dialog_->HeightCB->blockSignals(false);
 252         dialog_->Height->setEnabled(heightChecked);
 253         dialog_->heightUnit->setEnabled(heightChecked);
 254
 255         dialog_->scaleCB->setEnabled(!widthChecked && !heightChecked);
 256         dialog_->WidthCB->setEnabled(!scaleChecked);
 257         dialog_->HeightCB->setEnabled(!scaleChecked);
 258         dialog_->aspectratio->setEnabled(widthChecked && heightChecked);
 259
 260         dialog_->setAutoText();
 261
 262         dialog_->angle->setText(toqstr(igp.rotateAngle));
 263         dialog_->rotateOrderCB->setChecked(igp.scaleBeforeRotation);
 264
 265         dialog_->rotateOrderCB->setEnabled((widthChecked ||
 266                                            heightChecked ||
 267                                            scaleChecked) &&
 268                                            (igp.rotateAngle != "0"));
 269
 270         dialog_->origin->clear();
 271
 272         vector<RotationOriginPair> origindata = getRotationOriginData();
 273         vector<docstring> const origin_lang = getFirst(origindata);
 274         QGraphics::origin_ltx = getSecond(origindata);
 275
 276         for (vector<docstring>::const_iterator it = origin_lang.begin();
 277             it != origin_lang.end(); ++it)
 278                 dialog_->origin->addItem(toqstr(*it));
 279
 280         if (!igp.rotateOrigin.empty())
 281                 dialog_->origin->setCurrentIndex(
 282                         getItemNo(origin_ltx, igp.rotateOrigin));
 283         else
 284                 dialog_->origin->setCurrentIndex(0);
 285
 286         // disable edit button when no filename is present
 287         dialog_->editPB->setDisabled(dialog_->filename->text().isEmpty());
 288
 289         //// latex section
 290         dialog_->latexoptions->setText(toqstr(igp.special));
 291 }
 292
 293
 294 void QGraphics::apply()
 295 {
 296         InsetGraphicsParams & igp = controller().params();
 297
 298         igp.filename.set(internal_path(fromqstr(dialog_->filename->text())),
 299                          kernel().bufferFilepath());
 300
 301         // the bb section
 302         igp.bb.erase();
 303         if (controller().bbChanged) {
 304                 string bb;
 305                 string lbX(fromqstr(dialog_->lbX->text()));
 306                 string lbY(fromqstr(dialog_->lbY->text()));
 307                 string rtX(fromqstr(dialog_->rtX->text()));
 308                 string rtY(fromqstr(dialog_->rtY->text()));
 309                 int bb_sum =
 310                         convert<int>(lbX) + convert<int>(lbY) +
 311                         convert<int>(rtX) + convert<int>(rtX);
 312                 if (bb_sum) {
 313                         if (lbX.empty())
 314                                 bb = "0 ";
 315                         else
 316                                 bb = lbX + fromqstr(dialog_->lbXunit->currentText()) + ' ';
 317                         if (lbY.empty())
 318                                 bb += "0 ";
 319                         else
 320                                 bb += (lbY + fromqstr(dialog_->lbYunit->currentText()) + ' ');
 321                         if (rtX.empty())
 322                                 bb += "0 ";
 323                         else
 324                                 bb += (rtX + fromqstr(dialog_->rtXunit->currentText()) + ' ');
 325                         if (rtY.empty())
 326                                 bb += '0';
 327                         else
 328                                 bb += (rtY + fromqstr(dialog_->rtYunit->currentText()));
 329                         igp.bb = bb;
 330                 }
 331         }
 332
 333         igp.draft = dialog_->draftCB->isChecked();
 334         igp.clip = dialog_->clip->isChecked();
 335         igp.subcaption = dialog_->subfigure->isChecked();
 336         igp.subcaptionText = fromqstr(dialog_->subcaption->text());
 337
 338         switch (dialog_->showCB->currentIndex()) {
 339                 case 0: igp.display = graphics::DefaultDisplay; break;
 340                 case 1: igp.display = graphics::MonochromeDisplay; break;
 341                 case 2: igp.display = graphics::GrayscaleDisplay; break;
 342                 case 3: igp.display = graphics::ColorDisplay; break;
 343                 default:;
 344         }
 345
 346         if (!dialog_->displayGB->isChecked())
 347                 igp.display = graphics::NoDisplay;
 348
 349         //the graphics section
 350         if (dialog_->scaleCB->isChecked()       && !dialog_->Scale->text().isEmpty()) {
 351                 igp.scale = fromqstr(dialog_->Scale->text());
 352                 igp.width = Length("0pt");
 353                 igp.height = Length("0pt");
 354                 igp.keepAspectRatio = false;
 355         } else {
 356                 igp.scale = string();
 357                 igp.width = dialog_->WidthCB->isChecked() ?
 358                         //Note that this works even if dialog_->Width is "auto", since in
 359                         //that case we get "0pt".
 360                         Length(widgetsToLength(dialog_->Width, dialog_->widthUnit)):
 361                         Length("0pt");
 362                 igp.height = dialog_->HeightCB->isChecked() ?
 363                         Length(widgetsToLength(dialog_->Height, dialog_->heightUnit)) :
 364                         Length("0pt");
 365                 igp.keepAspectRatio = dialog_->aspectratio->isEnabled() &&
 366                         dialog_->aspectratio->isChecked() &&
 367                         igp.width.value() > 0 && igp.height.value() > 0;
 368         }
 369
 370         igp.noUnzip = dialog_->unzipCB->isChecked();
 371
 372         igp.lyxscale = convert<int>(fromqstr(dialog_->displayscale->text()));
 373
 374         igp.rotateAngle = fromqstr(dialog_->angle->text());
 375
 376         double rotAngle = convert<double>(igp.rotateAngle);
 377         if (std::abs(rotAngle) > 360.0) {
 378                 rotAngle -= 360.0 * floor(rotAngle / 360.0);
 379                 igp.rotateAngle = convert<string>(rotAngle);
 380         }
 381
 382         // save the latex name for the origin. If it is the default
 383         // then origin_ltx returns ""
 384         igp.rotateOrigin =
 385                 QGraphics::origin_ltx[dialog_->origin->currentIndex()];
 386
 387         igp.scaleBeforeRotation = dialog_->rotateOrderCB->isChecked();
 388
 389         // more latex options
 390         igp.special = fromqstr(dialog_->latexoptions->text());
 391 }
 392
 393
 394 void QGraphics::getBB()
 395 {
 396         string const filename(fromqstr(dialog_->filename->text()));
 397         if (!filename.empty()) {
 398                 string const bb(controller().readBB(filename));
 399                 if (!bb.empty()) {
 400                         dialog_->lbX->setText(toqstr(token(bb, ' ', 0)));
 401                         dialog_->lbY->setText(toqstr(token(bb, ' ', 1)));
 402                         dialog_->rtX->setText(toqstr(token(bb, ' ', 2)));
 403                         dialog_->rtY->setText(toqstr(token(bb, ' ', 3)));
 404                         // the default units for the bb values when reading
 405                         // it from the file
 406                         dialog_->lbXunit->setCurrentIndex(0);
 407                         dialog_->lbYunit->setCurrentIndex(0);
 408                         dialog_->rtXunit->setCurrentIndex(0);
 409                         dialog_->rtYunit->setCurrentIndex(0);
 410                 }
 411                 controller().bbChanged = false;
 412         }
 413 }
 414
 415
 416 bool QGraphics::isValid()
 417 {
 418         return !dialog_->filename->text().isEmpty();
 419 }
 420
 421 } // namespace frontend
 422 } // namespace lyx