src/insets/insetcollapsable.C

   1 /**
   2  * \file insetcollapsable.C
   3  * This file is part of LyX, the document processor.
   4  * Licence details can be found in the file COPYING.
   5  *
   6  * \author Alejandro Aguilar Sierra
   7  * \author Jürgen Vigna
   8  * \author Lars Gullik Bjønnes
   9  *
  10  * Full author contact details are available in file CREDITS.
  11  */
  12
  13 #include <config.h>
  14
  15 #include "insetcollapsable.h"
  16
  17 #include "buffer.h"
  18 #include "BufferView.h"
  19 #include "cursor.h"
  20 #include "debug.h"
  21 #include "dispatchresult.h"
  22 #include "FuncStatus.h"
  23 #include "LColor.h"
  24 #include "lyxlex.h"
  25 #include "funcrequest.h"
  26 #include "metricsinfo.h"
  27 #include "paragraph.h"
  28
  29 #include "frontends/font_metrics.h"
  30 #include "frontends/Painter.h"
  31 #include "frontends/LyXView.h"
  32
  33
  34 using lyx::graphics::PreviewLoader;
  35
  36 using std::endl;
  37 using std::string;
  38 using std::max;
  39 using std::min;
  40 using std::ostream;
  41
  42
  43 InsetCollapsable::InsetCollapsable
  44                 (BufferParams const & bp, CollapseStatus status)
  45         : InsetText(bp), label("Label"), status_(status), openinlined_(false)
  46 {
  47         setAutoBreakRows(true);
  48         setDrawFrame(true);
  49         setFrameColor(LColor::collapsableframe);
  50         setInsetName("Collapsable");
  51         setButtonLabel();
  52 }
  53
  54
  55 void InsetCollapsable::write(Buffer const & buf, ostream & os) const
  56 {
  57         os << "status ";
  58         switch (status_) {
  59         case Open:
  60                 os << "open";
  61                 break;
  62         case Collapsed:
  63                 os << "collapsed";
  64                 break;
  65         case Inlined:
  66                 os << "inlined";
  67                 break;
  68         }
  69         os << "\n";
  70         text_.write(buf, os);
  71 }
  72
  73
  74 void InsetCollapsable::read(Buffer const & buf, LyXLex & lex)
  75 {
  76         bool token_found = false;
  77         if (lex.isOK()) {
  78                 lex.next();
  79                 string const token = lex.getString();
  80                 if (token == "status") {
  81                         lex.next();
  82                         string const tmp_token = lex.getString();
  83
  84                         if (tmp_token == "inlined") {
  85                                 status_ = Inlined;
  86                                 token_found = true;
  87                         } else if (tmp_token == "collapsed") {
  88                                 status_ = Collapsed;
  89                                 token_found = true;
  90                         } else if (tmp_token == "open") {
  91                                 status_ = Open;
  92                                 token_found = true;
  93                         } else {
  94                                 lyxerr << "InsetCollapsable::read: Missing status!"
  95                                        << endl;
  96                                 // Take countermeasures
  97                                 lex.pushToken(token);
  98                         }
  99                 } else {
 100                         lyxerr << "InsetCollapsable::read: Missing 'status'-tag!"
 101                                    << endl;
 102                         // take countermeasures
 103                         lex.pushToken(token);
 104                 }
 105         }
 106         InsetText::read(buf, lex);
 107
 108         if (!token_found)
 109                 status_ = isOpen() ? Open : Collapsed;
 110
 111         setButtonLabel();
 112 }
 113
 114
 115 Dimension InsetCollapsable::dimensionCollapsed() const
 116 {
 117         Dimension dim;
 118         font_metrics::buttonText(label, labelfont_, dim.wid, dim.asc, dim.des);
 119         return dim;
 120 }
 121
 122
 123 void InsetCollapsable::metrics(MetricsInfo & mi, Dimension & dim) const
 124 {
 125         mi.base.textwidth -= 2 * TEXT_TO_INSET_OFFSET;
 126         if (status_ == Inlined) {
 127                 InsetText::metrics(mi, dim);
 128         } else {
 129                 dim = dimensionCollapsed();
 130                 if (status_ == Open) {
 131                         InsetText::metrics(mi, textdim_);
 132                         openinlined_ = (textdim_.wid + dim.wid <= mi.base.textwidth);
 133                         if (openinlined_) {
 134                                 dim.wid += textdim_.wid;
 135                                 dim.des = max(dim.des - textdim_.asc + dim.asc, textdim_.des);
 136                                 dim.asc = textdim_.asc;
 137                         } else {
 138                                 dim.des += textdim_.height() + TEXT_TO_BOTTOM_OFFSET;
 139                                 dim.wid = max(dim.wid, textdim_.wid);
 140                         }
 141                 }
 142         }
 143         dim.asc += TEXT_TO_INSET_OFFSET;
 144         dim.des += TEXT_TO_INSET_OFFSET;
 145         dim.wid += 2 * TEXT_TO_INSET_OFFSET;
 146         mi.base.textwidth += 2 * TEXT_TO_INSET_OFFSET;
 147         dim_ = dim;
 148 }
 149
 150
 151 void InsetCollapsable::draw(PainterInfo & pi, int x, int y) const
 152 {
 153         const int xx = x + TEXT_TO_INSET_OFFSET;
 154         if (status_ == Inlined) {
 155                 InsetText::draw(pi, xx, y);
 156         } else {
 157                 Dimension dimc = dimensionCollapsed();
 158                 int const top  = y - ascent() + TEXT_TO_INSET_OFFSET;
 159                 button_dim.x1 = xx + 0;
 160                 button_dim.x2 = xx + dimc.width();
 161                 button_dim.y1 = top;
 162                 button_dim.y2 = top + dimc.height();
 163
 164                 pi.pain.buttonText(xx, top + dimc.asc, label, labelfont_);
 165                 if (status_ == Open) {
 166                         int textx, texty;
 167                         if (openinlined_) {
 168                                 textx = xx + dimc.width();
 169                                 texty = top + textdim_.asc;
 170                         } else {
 171                                 textx = xx;
 172                                 texty = top + dimc.height() + textdim_.asc;
 173                         }
 174                         InsetText::draw(pi, textx, texty);
 175                 }
 176         }
 177         setPosCache(pi, x, y);
 178 }
 179
 180
 181 void InsetCollapsable::drawSelection(PainterInfo & pi, int x, int y) const
 182 {
 183         x += TEXT_TO_INSET_OFFSET;
 184         if (status_ == Open) {
 185                 if (openinlined_)
 186                         x += dimensionCollapsed().wid;
 187                 else
 188                         y += dimensionCollapsed().des + textdim_.asc;
 189         }
 190         if (status_ != Collapsed)
 191                 InsetText::drawSelection(pi, x, y);
 192 }
 193
 194
 195 void InsetCollapsable::getCursorPos
 196         (CursorSlice const & sl, int & x, int & y) const
 197 {
 198         if (status_ == Collapsed) {
 199                 x = xo();
 200                 y = yo();
 201                 return;
 202         }
 203
 204         InsetText::getCursorPos(sl, x, y);
 205         if (status_ == Open) {
 206                 if (openinlined_)
 207                         x += dimensionCollapsed().wid;
 208                 else
 209                         y += dimensionCollapsed().height() - ascent() + TEXT_TO_INSET_OFFSET + textdim_.asc;
 210         }
 211
 212         x += TEXT_TO_INSET_OFFSET;
 213 }
 214
 215
 216 InsetBase::EDITABLE InsetCollapsable::editable() const
 217 {
 218         return status_ != Collapsed ? HIGHLY_EDITABLE : IS_EDITABLE;
 219 }
 220
 221
 222 bool InsetCollapsable::descendable() const
 223 {
 224         return status_ != Collapsed;
 225 }
 226
 227
 228 bool InsetCollapsable::hitButton(FuncRequest const & cmd) const
 229 {
 230         return button_dim.contains(cmd.x, cmd.y);
 231 }
 232
 233
 234 string const InsetCollapsable::getNewLabel(string const & l) const
 235 {
 236         string label;
 237         pos_type const max_length = 15;
 238         pos_type const p_siz = paragraphs().begin()->size();
 239         pos_type const n = min(max_length, p_siz);
 240         pos_type i = 0;
 241         pos_type j = 0;
 242         for( ; i < n && j < p_siz; ++j) {
 243                 if (paragraphs().begin()->isInset(j))
 244                         continue;
 245                 label += paragraphs().begin()->getChar(j);
 246                 ++i;
 247         }
 248         if (paragraphs().size() > 1 || (i > 0 && j < p_siz)) {
 249                 label += "...";
 250         }
 251         return label.empty() ? l : label;
 252 }
 253
 254
 255 void InsetCollapsable::edit(LCursor & cur, bool left)
 256 {
 257         //lyxerr << "InsetCollapsable: edit left/right" << endl;
 258         cur.push(*this);
 259         InsetText::edit(cur, left);
 260 }
 261
 262
 263 InsetBase * InsetCollapsable::editXY(LCursor & cur, int x, int y)
 264 {
 265         //lyxerr << "InsetCollapsable: edit xy" << endl;
 266         if (status_ == Collapsed)
 267                 return this;
 268         cur.push(*this);
 269         return InsetText::editXY(cur, x, y);
 270 }
 271
 272
 273 void InsetCollapsable::doDispatch(LCursor & cur, FuncRequest & cmd)
 274 {
 275         lyxerr << "InsetCollapsable::doDispatch (begin): cmd: " << cmd
 276                 << " cur: " << cur << " bvcur: " << cur.bv().cursor() << endl;
 277
 278         switch (cmd.action) {
 279         case LFUN_MOUSE_PRESS:
 280                 if (status_ == Inlined)
 281                         InsetText::doDispatch(cur, cmd);
 282                 else if (status_ == Open && !hitButton(cmd))
 283                         InsetText::doDispatch(cur, cmd);
 284                 else
 285                         cur.noUpdate();
 286                 break;
 287
 288         case LFUN_MOUSE_MOTION:
 289         case LFUN_MOUSE_DOUBLE:
 290         case LFUN_MOUSE_TRIPLE:
 291                 if (status_ == Inlined)
 292                         InsetText::doDispatch(cur, cmd);
 293                 else if (status_ == Open && !hitButton(cmd))
 294                         InsetText::doDispatch(cur, cmd);
 295                 else
 296                         cur.undispatched();
 297                 break;
 298
 299         case LFUN_MOUSE_RELEASE:
 300                 if (cmd.button() == mouse_button::button3) {
 301                         showInsetDialog(&cur.bv());
 302                         break;
 303                 }
 304
 305                 switch (status_) {
 306
 307                 case Collapsed:
 308                         lyxerr << "InsetCollapsable::lfunMouseRelease 1" << endl;
 309                         setStatus(cur, Open);
 310                         edit(cur, true);
 311                         cur.bv().cursor() = cur;
 312                         break;
 313
 314                 case Open: {
 315                         if (hitButton(cmd)) {
 316                                 lyxerr << "InsetCollapsable::lfunMouseRelease 2" << endl;
 317                                 setStatus(cur, Collapsed);
 318                                 cur.bv().cursor() = cur;
 319                         } else {
 320                                 lyxerr << "InsetCollapsable::lfunMouseRelease 3" << endl;
 321                                 InsetText::doDispatch(cur, cmd);
 322                         }
 323                         break;
 324                 }
 325
 326                 case Inlined:
 327                         lyxerr << "InsetCollapsable::lfunMouseRelease 4" << endl;
 328                         InsetText::doDispatch(cur, cmd);
 329                         break;
 330                 }
 331                 break;
 332
 333         case LFUN_INSET_TOGGLE:
 334                 if (cmd.argument == "open")
 335                         setStatus(cur, Open);
 336                 else if (cmd.argument == "close")
 337                         setStatus(cur, Collapsed);
 338                 else if (cmd.argument == "toggle" || cmd.argument.empty())
 339                         setStatus(cur, isOpen() ? Collapsed : Open);
 340                 else // if assign or anything else
 341                         cur.undispatched();
 342                 cur.dispatched();
 343                 break;
 344
 345         default:
 346                 InsetText::doDispatch(cur, cmd);
 347                 break;
 348         }
 349 }
 350
 351
 352 bool InsetCollapsable::getStatus(LCursor & cur, FuncRequest const & cmd,
 353                 FuncStatus & flag) const
 354 {
 355         switch (cmd.action) {
 356
 357         case LFUN_INSET_TOGGLE:
 358                 if (cmd.argument == "open" || cmd.argument == "close" ||
 359                     cmd.argument == "toggle")
 360                         flag.enabled(true);
 361                 else
 362                         flag.enabled(false);
 363                 return true;
 364
 365         default:
 366                 return InsetText::getStatus(cur, cmd, flag);
 367         }
 368 }
 369
 370
 371 int InsetCollapsable::scroll(bool recursive) const
 372 {
 373         int sx = UpdatableInset::scroll(false);
 374
 375         if (recursive)
 376                 sx += InsetText::scroll(false);
 377
 378         return sx;
 379 }
 380
 381
 382 void InsetCollapsable::setLabel(string const & l)
 383 {
 384         label = l;
 385 }
 386
 387
 388 void InsetCollapsable::setStatus(LCursor & cur, CollapseStatus status)
 389 {
 390         status_ = status;
 391         setButtonLabel();
 392         if (status_ == Collapsed)
 393                 cur.leaveInset(*this);
 394 }
 395
 396
 397 void InsetCollapsable::setLabelFont(LyXFont & font)
 398 {
 399         labelfont_ = font;
 400 }
 401
 402
 403 void InsetCollapsable::scroll(BufferView & bv, double sx) const
 404 {
 405         UpdatableInset::scroll(bv, sx);
 406 }
 407
 408
 409 void InsetCollapsable::scroll(BufferView & bv, int offset) const
 410 {
 411         UpdatableInset::scroll(bv, offset);
 412 }