xreader.d

   1 /* Written by Ketmar // Invisible Vector <ketmar@ketmar.no-ip.org>f
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 module xreader;
  18
  19 import core.time;
  20
  21 import std.concurrency;
  22
  23 import arsd.simpledisplay;
  24 import arsd.image;
  25
  26 import iv.nanovg;
  27 import iv.nanovg.oui.blendish;
  28 import iv.nanovg.perf;
  29
  30 import iv.strex;
  31
  32 import iv.glcmdcon;
  33
  34 import iv.vfs;
  35 import iv.vfs.io;
  36
  37 import xmodel;
  38 import xiniz;
  39
  40 import booktext;
  41
  42 import xreadercfg;
  43 import xreaderui;
  44 import xreaderifs;
  45 import xreaderfmt;
  46 import xlayouter;
  47
  48 import eworld;
  49 import ewbillboard;
  50
  51 //version = debug_draw;
  52
  53
  54 // ////////////////////////////////////////////////////////////////////////// //
  55 void run (string bookFileName) {
  56   int formatWorks = -1;
  57   NVGContext vg = null;
  58   PerfGraph fps;
  59   __gshared bool fpsVisible = false;
  60   BookText booktext;
  61   string newBookFileName;
  62
  63   if (GWidth < MinWinWidth) GWidth = MinWinWidth;
  64   if (GHeight < MinWinHeight) GHeight = MinWinHeight;
  65
  66   uint[] posstack;
  67
  68   booktext = loadBook(bookFileName);
  69
  70   //setOpenGLContextVersion(3, 2); // up to GLSL 150
  71   setOpenGLContextVersion(2, 0); // it's enough
  72   //openGLContextCompatible = false;
  73
  74   auto sdwindow = new SimpleWindow(GWidth, GHeight, booktext.title~" \xe2\x80\x94 "~booktext.authorFirst~" "~booktext.authorLast, OpenGlOptions.yes, Resizablity.allowResizing);
  75   sdwindow.hideCursor(); // we will do our own
  76   sdwindow.setMinSize(MinWinWidth, MinWinHeight);
  77
  78   auto stt = MonoTime.currTime;
  79   auto prevt = MonoTime.currTime;
  80   auto curt = prevt;
  81   LayText laytext;
  82   int textHeight = GHeight-8;
  83   bool doSaveCheck = false;
  84   MonoTime nextSaveTime;
  85
  86   MonoTime nextIfTime = MonoTime.currTime;
  87
  88   BookInfo[] recentFiles;
  89   BookMetadata bookmeta;
  90
  91   int toMove = 0; // for smooth scroller
  92   int topY = 0;
  93   int arrowDir = 0;
  94
  95   int newYLine = -1; // index
  96   float newYAlpha;
  97   bool newYFade = false;
  98   MonoTime nextFadeTime;
  99
 100   int curImg = -1, curImgWhite = -1;
 101   int mouseX = -666, mouseY = -666;
 102   bool mouseHigh = false;
 103   bool mouseHidden = false;
 104   auto lastMMove = MonoTime.currTime;
 105   float mouseAlpha = 1.0f;
 106   int mouseFadingAway = false;
 107
 108   bool needRedrawFlag = true;
 109
 110   bool firstFormat = true;
 111
 112   __gshared bool inGalaxyMap = false;
 113   PopupMenu currPopup;
 114   void delegate (int item) onPopupSelect;
 115   int shipModelIndex = 0;
 116   bool popupNoShipKill = false;
 117
 118   void refresh () { needRedrawFlag = true; }
 119   void refreshed () { needRedrawFlag = false; }
 120
 121   bool needRedraw () {
 122     return (needRedrawFlag || (currPopup !is null && currPopup.needRedraw));
 123   }
 124
 125   @property bool inMenu () { return (currPopup !is null); }
 126   void closeMenu () { if (currPopup !is null) currPopup.destroy; currPopup = null; onPopupSelect = null; }
 127
 128   auto childTid = spawn(&reformatThreadFn, thisTid);
 129   childTid.setMaxMailboxSize(128, OnCrowding.block);
 130   thisTid.setMaxMailboxSize(128, OnCrowding.block);
 131
 132   void setShip (int idx) {
 133     if (eliteShipFiles.length) {
 134       import core.memory : GC;
 135       if (idx >= eliteShipFiles.length) idx = cast(int)eliteShipFiles.length-1;
 136       if (idx < 0) idx = 0;
 137       if (shipModelIndex == idx && shipModel !is null) return;
 138       // remove old ship
 139       shipModelIndex = idx;
 140       if (shipModel !is null) {
 141         shipModel.glUnload();
 142         shipModel.freeData();
 143         shipModel.destroy;
 144         shipModel = null;
 145       }
 146       GC.collect();
 147       // load new ship
 148       try {
 149         shipModel = new EliteModel(eliteShipFiles[shipModelIndex]);
 150         shipModel.glUpload();
 151         shipModel.freeImages();
 152       } catch (Exception e) {}
 153       //shipModel = eliteShips[shipModelIndex];
 154       GC.collect();
 155     }
 156   }
 157
 158   void ensureShipModel () {
 159     if (eliteShipFiles.length && shipModel is null) {
 160       import std.random : uniform;
 161       setShip(uniform!"[)"(0, eliteShipFiles.length));
 162     }
 163   }
 164
 165   void freeShipModel () {
 166     if (!showShip && !inMenu && shipModel !is null) {
 167       import core.memory : GC;
 168       shipModel.glUnload();
 169       shipModel.freeData();
 170       shipModel.destroy;
 171       shipModel = null;
 172       GC.collect();
 173     }
 174   }
 175
 176   void doSaveState (bool forced=false) {
 177     if (!forced) {
 178       if (formatWorks != 0) return;
 179       if (!doSaveCheck) return;
 180       auto ct = MonoTime.currTime;
 181       if (ct < nextSaveTime) return;
 182     } else {
 183       if (laytext is null || laytext.lineCount == 0 || formatWorks != 0) return;
 184     }
 185     try {
 186       auto fo = VFile(stateFileName, "w");
 187       if (laytext !is null && laytext.lineCount) {
 188         auto lnum = laytext.findLineAtY(topY);
 189         if (lnum >= 0) fo.writeln("wordindex=", laytext.line(lnum).wstart);
 190       }
 191     } catch (Exception) {}
 192     doSaveCheck = false;
 193   }
 194
 195   void stateChanged () {
 196     if (!doSaveCheck) {
 197       doSaveCheck = true;
 198       nextSaveTime = MonoTime.currTime+10.seconds;
 199     }
 200   }
 201
 202   void hardScrollBy (int delta) {
 203     if (delta == 0 || laytext is null || laytext.lineCount == 0) return;
 204     int oldY = topY;
 205     topY += delta;
 206     if (topY >= laytext.textHeight-textHeight) topY = cast(int)laytext.textHeight-textHeight;
 207     if (topY < 0) topY = 0;
 208     if (topY != oldY) {
 209       stateChanged();
 210       refresh();
 211     }
 212   }
 213
 214   void scrollBy (int delta) {
 215     if (delta == 0 || laytext is null || laytext.lineCount == 0) return;
 216     toMove += delta;
 217     newYFade = true;
 218     newYAlpha = 1;
 219     if (delta < 0) {
 220       // scrolling up, mark top line
 221       newYLine = laytext.findLineAtY(topY);
 222     } else {
 223       // scrolling down, mark bottom line
 224       newYLine = laytext.findLineAtY(topY+textHeight-2);
 225     }
 226     version(none) {
 227       import std.stdio;
 228       writeln("scrollBy: delta=", delta, "; newYLine=", newYLine, "; topLine=", laytext.findLineAtY(topY));
 229     }
 230     if (newYLine < 0) newYFade = false;
 231   }
 232
 233   void goHome () {
 234     if (laytext is null) return;
 235     if (topY != 0) {
 236       topY = 0;
 237       stateChanged();
 238       refresh();
 239     }
 240   }
 241
 242   void goTo (uint widx) {
 243     if (laytext is null) return;
 244     auto lidx = laytext.findLineWithWord(widx);
 245     if (lidx != -1) {
 246       assert(lidx < laytext.lineCount);
 247       toMove = 0;
 248       if (topY != laytext.line(lidx).y) {
 249         topY = laytext.line(lidx).y;
 250         stateChanged();
 251         refresh();
 252       }
 253       version(none) {
 254         import std.stdio;
 255         writeln("goto: widx=", widx, "; lidx=", lidx, "; fwn=", laytext.line(lidx).wstart, "; topY=", topY);
 256         auto lnum = laytext.findLineAtY(topY);
 257         writeln("  newlnum=", lnum, "; lidx.y=", laytext.line(lidx).y, "; lnum.y=", laytext.line(lnum).y);
 258       }
 259     }
 260   }
 261
 262   void loadState () {
 263     try {
 264       int widx = -1;
 265       xiniParse(VFile(stateFileName),
 266         "wordindex", &widx,
 267       );
 268       if (widx >= 0) goTo(widx);
 269     } catch (Exception) {}
 270   }
 271
 272   void loadAndFormat (string filename) {
 273     assert(formatWorks <= 0);
 274     booktext = null;
 275     laytext = null;
 276     newYLine = -1;
 277     //formatWorks = -1; //FIXME
 278     firstFormat = true;
 279     newYFade = false;
 280     toMove = 0;
 281     recentFiles = null;
 282     arrowDir = 0;
 283     //sdwindow.redrawOpenGlSceneNow();
 284     //booktext = loadBook(newBookFileName);
 285     //newBookFileName = null;
 286     //reformat();
 287     //if (formatWorks < 0) formatWorks = 1; else ++formatWorks;
 288     formatWorks = 1;
 289     //writeln("*** loading new book: '", filename, "'");
 290     childTid.send(ReformatWork(null, filename, GWidth, GHeight));
 291     refresh();
 292   }
 293
 294   void reformat () {
 295     if (formatWorks < 0) formatWorks = 1; else ++formatWorks;
 296     childTid.send(ReformatWork(cast(shared)booktext, null, GWidth, GHeight));
 297     refresh();
 298   }
 299
 300   void formatComplete (ref ReformatWorkComplete w) {
 301     scope(exit) { import core.memory : GC; GC.collect(); GC.minimize(); }
 302
 303     auto lt = cast(LayText)w.laytext;
 304     scope(exit) if (lt) lt.freeMemory();
 305     w.laytext = null;
 306
 307     BookMetadata meta = cast(BookMetadata)w.meta;
 308     w.meta = null;
 309
 310     BookText bt = cast(BookText)w.booktext;
 311     w.booktext = null;
 312     if (bt !is booktext) {
 313       booktext = bt;
 314       bookmeta = meta;
 315       firstFormat = true;
 316       sdwindow.title = booktext.title~" \xe2\x80\x94 "~booktext.authorFirst~" "~booktext.authorLast;
 317     } else if (bookmeta is null) {
 318       bookmeta = meta;
 319     }
 320
 321     if (isQuitRequested || formatWorks <= 0) return;
 322     --formatWorks;
 323
 324     if (w.w != GWidth) {
 325       if (formatWorks == 0) reformat();
 326       return;
 327     }
 328
 329     if (formatWorks != 0) return;
 330     freeShipModel();
 331
 332     uint widx = 0;
 333     if (!firstFormat && laytext !is null && laytext.lineCount) {
 334       auto lidx = laytext.findLineAtY(topY);
 335       if (lidx >= 0) widx = laytext.line(lidx).wstart;
 336     }
 337     if (laytext !is null) laytext.freeMemory();
 338     laytext = lt;
 339     lt = null;
 340     if (firstFormat) {
 341       loadState();
 342       firstFormat = false;
 343       doSaveCheck = false;
 344       stateChanged();
 345     } else {
 346       goTo(widx);
 347     }
 348     refresh();
 349   }
 350
 351   void pushPosition () {
 352     if (laytext is null || laytext.lineCount == 0) return;
 353     auto lidx = laytext.findLineAtY(topY);
 354     if (lidx >= 0) posstack ~= laytext.line(lidx).wstart;
 355   }
 356
 357   void popPosition () {
 358     if (posstack.length == 0) return;
 359     auto widx = posstack[$-1];
 360     posstack.length -= 1;
 361     posstack.assumeSafeAppend;
 362     goTo(widx);
 363   }
 364
 365   void gotoSection (int sn) {
 366     if (laytext is null || laytext.lineCount == 0 || bookmeta is null) return;
 367     if (sn < 0 || sn >= bookmeta.sections.length) return;
 368     auto lidx = laytext.findLineWithWord(bookmeta.sections[sn].wordidx);
 369     if (lidx >= 0) {
 370       auto newY = laytext.line(lidx).y;
 371       if (newY != topY) {
 372         topY = newY;
 373         stateChanged();
 374         refresh();
 375       }
 376     }
 377   }
 378
 379   version(X11) sdwindow.closeQuery = delegate () { concmd("quit"); };
 380
 381   void closeWindow () {
 382     doSaveState(true); // forced state save
 383     if (!sdwindow.closed && vg !is null) {
 384       if (curImg >= 0) { vg.deleteImage(curImg); curImg = -1; }
 385       if (curImgWhite >= 0) { vg.deleteImage(curImgWhite); curImgWhite = -1; }
 386       freeShipModel();
 387       vg.deleteGL2();
 388       vg = null;
 389       sdwindow.close();
 390     }
 391   }
 392
 393   sdwindow.visibleForTheFirstTime = delegate () {
 394     sdwindow.setAsCurrentOpenGlContext(); // make this window active
 395     sdwindow.vsync = false;
 396     //sdwindow.useGLFinish = false;
 397     //glbindLoadFunctions();
 398
 399     try {
 400       uint flags = NVG_DEBUG;
 401       if (flagNanoAA) flags |= NVG_ANTIALIAS;
 402       if (flagNanoSS) flags |= NVG_STENCIL_STROKES;
 403       vg = createGL2NVG(flags);
 404       if (vg is null) {
 405         import std.stdio;
 406         writeln("Could not init nanovg.");
 407         assert(0);
 408         //sdwindow.close();
 409       }
 410       loadFonts(vg);
 411       curImg = createCursorImage(vg);
 412       curImgWhite = createCursorImage(vg, true);
 413       fps = new PerfGraph("Frame Time", PerfGraph.Style.FPS, "ui");
 414     } catch (Exception e) {
 415       import std.stdio : stderr;
 416       stderr.writeln("ERROR: ", e.msg);
 417       concmd("quit");
 418       return;
 419     }
 420
 421     reformat();
 422
 423     refresh();
 424     sdwindow.redrawOpenGlScene();
 425     refresh();
 426   };
 427
 428   void relayout (bool forced=false) {
 429     if (laytext !is null) {
 430       uint widx;
 431       auto lidx = laytext.findLineAtY(topY);
 432       if (lidx >= 0) widx = laytext.line(lidx).wstart;
 433       int maxWidth = GWidth-4-2-BND_SCROLLBAR_WIDTH-2;
 434       //if (maxWidth < MinWinWidth) maxWidth = MinWinWidth;
 435       {
 436         import core.time;
 437         auto stt = MonoTime.currTime;
 438         laytext.relayout(maxWidth, forced);
 439         auto ett = MonoTime.currTime-stt;
 440         writeln("relayouted in ", ett.total!"msecs", " milliseconds; lines:", laytext.lineCount, "; words:", laytext.nextWordIndex);
 441       }
 442       goTo(widx);
 443       refresh();
 444     }
 445   }
 446
 447   sdwindow.windowResized = delegate (int w, int h) {
 448     //conwriteln("w=", w, "; h=", h);
 449     //if (w < MinWinWidth) w = MinWinWidth;
 450     //if (h < MinWinHeight) h = MinWinHeight;
 451     glViewport(0, 0, w, h);
 452     GWidth = w;
 453     GHeight = h;
 454     textHeight = GHeight-8;
 455     //reformat();
 456     relayout();
 457     refresh();
 458   };
 459
 460   void drawShipName () {
 461     if (shipModel is null || shipModel.name.length == 0) return;
 462     vg.fontFaceId(uiFont);
 463     vg.textAlign(NVGTextAlign.H.Left, NVGTextAlign.V.Baseline);
 464     vg.fontSize(fsizeUI);
 465     auto w = vg.bndLabelWidth(-1, shipModel.name)+8;
 466     float h = BND_WIDGET_HEIGHT+8;
 467     float mx = (GWidth-w)/2.0;
 468     float my = (GHeight-h)-8;
 469     vg.bndMenuBackground(mx, my, w, h, BND_CORNER_NONE);
 470     vg.bndMenuItem(mx+4, my+4, w-8, BND_WIDGET_HEIGHT, BND_DEFAULT, -1, shipModel.name);
 471     if (shipModel.dispName && shipModel.dispName != shipModel.name) {
 472       my -= BND_WIDGET_HEIGHT+16;
 473       w = vg.bndLabelWidth(-1, shipModel.dispName)+8;
 474       mx = (GWidth-w)/2.0;
 475       vg.bndMenuBackground(mx, my, w, h, BND_CORNER_NONE);
 476       vg.bndMenuItem(mx+4, my+4, w-8, BND_WIDGET_HEIGHT, BND_DEFAULT, -1, shipModel.dispName);
 477     }
 478   }
 479
 480   void createSectionMenu () {
 481     closeMenu();
 482     //writeln("lc=", laytext.lineCount, "; bm: ", (bookmeta !is null));
 483     if (laytext is null || laytext.lineCount == 0 || bookmeta is null) { freeShipModel(); return; }
 484     currPopup = new PopupMenu(vg, "Sections"d, () {
 485       dstring[] items;
 486       foreach (const ref sc; bookmeta.sections) items ~= sc.name;
 487       return items;
 488     });
 489     //writeln(currPopup.items.length);
 490     // find current section
 491     currPopup.curItemIdx = 0;
 492     auto lidx = laytext.findLineAtY(topY);
 493     if (lidx >= 0 && bookmeta.sections.length > 0) {
 494       foreach (immutable sidx, const ref sc; bookmeta.sections) {
 495         auto sline = laytext.findLineWithWord(sc.wordidx);
 496         if (sline >= 0 && lidx >= sline) currPopup.curItemIdx = cast(int)sidx;
 497       }
 498     }
 499     onPopupSelect = (int item) { gotoSection(item); };
 500   }
 501
 502   void createQuitMenu (bool wantYes) {
 503     closeMenu();
 504     currPopup = new PopupMenu(vg, "Quit?"d, () {
 505       return ["Yes"d, "No"d];
 506     });
 507     currPopup.curItemIdx = (wantYes ? 0 : 1);
 508     onPopupSelect = (int item) { if (item == 0) concmd("quit"); };
 509   }
 510
 511   void createRecentMenu () {
 512     closeMenu();
 513     if (recentFiles.length == 0) recentFiles = loadDetailedHistory();
 514     if (recentFiles.length == 0) { freeShipModel(); return; }
 515     currPopup = new PopupMenu(vg, "Recent files"d, () {
 516       import std.conv : to;
 517       dstring[] res;
 518       foreach (const ref BookInfo bi; recentFiles) {
 519         string s = bi.title;
 520         if (bi.seqname.length) {
 521           s ~= " (";
 522           if (bi.seqnum) { s ~= to!string(bi.seqnum); s ~= ": "; }
 523           //writeln(bi.seqname);
 524           s ~= bi.seqname;
 525           s ~= ")";
 526         }
 527         if (bi.author.length) { s ~= " \xe2\x80\x94 "; s ~= bi.author; }
 528         res ~= s.to!dstring;
 529       }
 530       return res;
 531     });
 532     currPopup.curItemIdx = cast(int)recentFiles.length-1;
 533     onPopupSelect = (int item) {
 534       newBookFileName = recentFiles[item].diskfile;
 535       popupNoShipKill = true;
 536     };
 537   }
 538
 539   bool menuKey (KeyEvent event) {
 540     if (formatWorks != 0) return false;
 541     if (!inMenu) return false;
 542     if (inGalaxyMap) return false;
 543     if (!event.pressed) return false;
 544     auto res = currPopup.onKey(event);
 545     if (res == PopupMenu.Close) {
 546       closeMenu();
 547       freeShipModel();
 548       refresh();
 549     } else if (res >= 0) {
 550       if (onPopupSelect !is null) onPopupSelect(res);
 551       closeMenu();
 552       if (popupNoShipKill) popupNoShipKill = false; else freeShipModel();
 553       refresh();
 554     }
 555     return true;
 556   }
 557
 558   bool menuMouse (MouseEvent event) {
 559     if (formatWorks != 0) return false;
 560     if (!inMenu) return false;
 561     if (inGalaxyMap) return false;
 562     auto res = currPopup.onMouse(event);
 563     if (res == PopupMenu.Close) {
 564       closeMenu();
 565       freeShipModel();
 566       refresh();
 567     } else if (res >= 0) {
 568       if (onPopupSelect !is null) onPopupSelect(res);
 569       closeMenu();
 570       if (popupNoShipKill) popupNoShipKill = false; else freeShipModel();
 571       refresh();
 572     }
 573     return true;
 574   }
 575
 576   bool readerKey (KeyEvent event) {
 577     if (formatWorks != 0) return false;
 578     if (!event.pressed) {
 579       switch (event.key) {
 580         case Key.Up: arrowDir = 0; return true;
 581         case Key.Down: arrowDir = 0; return true;
 582         default:
 583       }
 584       return false;
 585     }
 586     switch (event.key) {
 587       case Key.Space:
 588         if (event.modifierState&ModifierState.shift) {
 589           //goto case Key.PageUp;
 590           hardScrollBy(toMove); toMove = 0;
 591           scrollBy(-textHeight/3*2);
 592         } else {
 593           //goto case Key.PageDown;
 594           hardScrollBy(toMove); toMove = 0;
 595           scrollBy(textHeight/3*2);
 596         }
 597         break;
 598       case Key.Backspace:
 599         popPosition();
 600         break;
 601       case Key.PageUp:
 602         hardScrollBy(toMove); toMove = 0;
 603         hardScrollBy(-(textHeight > 32 ? textHeight-32 : textHeight));
 604         break;
 605       case Key.PageDown:
 606         hardScrollBy(toMove); toMove = 0;
 607         hardScrollBy(textHeight > 32 ? textHeight-32 : textHeight);
 608         break;
 609       case Key.Up:
 610         //scrollBy(-8);
 611         arrowDir = -1;
 612         break;
 613       case Key.Down:
 614         //scrollBy(8);
 615         arrowDir = 1;
 616         break;
 617       case Key.H:
 618         goHome();
 619         break;
 620       default:
 621     }
 622     return true;
 623   }
 624
 625   bool controlKey (KeyEvent event) {
 626     if (!event.pressed) return false;
 627     switch (event.key) {
 628       case Key.Escape:
 629         if (inGalaxyMap) { inGalaxyMap = false; refresh(); return true; }
 630         if (inMenu) { closeMenu(); freeShipModel(); refresh(); return true; }
 631         if (showShip) { showShip = false; freeShipModel(); refresh(); return true; }
 632         ensureShipModel();
 633         createQuitMenu(true);
 634         refresh();
 635         return true;
 636       case Key.P: if (event.modifierState == ModifierState.ctrl) { concmd("r_fps toggle"); refresh(); return true; } break;
 637       case Key.I: if (event.modifierState == ModifierState.ctrl) { interAllowed = !interAllowed; refresh(); return true; } break;
 638       case Key.N: if (event.modifierState == ModifierState.ctrl) { sbLeft = !sbLeft; refresh(); return true; } break;
 639       case Key.C: if (event.modifierState == ModifierState.ctrl) { if (addIf()) refresh(); return true; } break;
 640       case Key.E:
 641         if (event.modifierState == ModifierState.ctrl && eliteShipFiles.length > 0) {
 642           if (!inMenu) {
 643             showShip = !showShip;
 644             if (showShip) ensureShipModel(); else freeShipModel();
 645             refresh();
 646           }
 647           return true;
 648         }
 649         break;
 650       case Key.Q: if (event.modifierState == ModifierState.ctrl) { concmd("quit"); return true; } break;
 651       case Key.B: if (formatWorks == 0 && !inMenu && !inGalaxyMap && event.modifierState == ModifierState.ctrl) { pushPosition(); return true; } break;
 652       case Key.S:
 653         if (formatWorks == 0 && !showShip && !inMenu && !inGalaxyMap) {
 654           ensureShipModel();
 655           createSectionMenu();
 656           refresh();
 657         }
 658         break;
 659       case Key.L:
 660         if (formatWorks == 0 && event.modifierState == ModifierState.alt) {
 661           ensureShipModel();
 662           createRecentMenu();
 663           refresh();
 664         }
 665         break;
 666       case Key.M:
 667         if (!inMenu && !showShip) {
 668           inGalaxyMap = !inGalaxyMap;
 669           refresh();
 670         }
 671         break;
 672       case Key.R:
 673         if (formatWorks == 0 && event.modifierState == ModifierState.ctrl) relayout(true);
 674         break;
 675       case Key.Home: if (showShip) { setShip(0); return true; } break;
 676       case Key.End: if (showShip) { setShip(cast(int)eliteShipFiles.length); return true; } break;
 677       case Key.Up: case Key.Left: if (showShip) { setShip(shipModelIndex-1); return true; } break;
 678       case Key.Down: case Key.Right: if (showShip) { setShip(shipModelIndex+1); return true; } break;
 679       default:
 680     }
 681     return showShip;
 682   }
 683
 684   static int startX () { pragma(inline, true); return (sbLeft ? 2+BND_SCROLLBAR_WIDTH+2 : 4); }
 685   static int endX () { pragma(inline, true); return startX+GWidth-4-2-BND_SCROLLBAR_WIDTH-2-1; }
 686
 687   int startY () { pragma(inline, true); return (GHeight-textHeight)/2; }
 688   int endY () { pragma(inline, true); return startY+textHeight-1; }
 689
 690   sdwindow.redrawOpenGlScene = delegate () {
 691     if (isQuitRequested) return;
 692
 693     oglResizeConsole(GWidth/2, GHeight/2, 2);
 694     /*{
 695       __gshared int cnt;
 696       conwriteln("cnt=", cnt++);
 697     }*/
 698
 699     //glClearColor(0, 0, 0, 0);
 700     //glClearColor(0.18, 0.18, 0.18, 0);
 701     glClearColor(colorBack.r, colorBack.g, colorBack.b, 0);
 702     glClear(glNVGClearFlags|EliteModel.glClearFlags);
 703
 704     refreshed();
 705     needRedrawFlag = (fps !is null && fpsVisible);
 706     if (vg is null) return;
 707
 708     scope(exit) vg.releaseImages();
 709     vg.beginFrame(GWidth, GHeight, 1);
 710     drawIfs(vg);
 711     // draw scrollbar
 712     {
 713       float curHeight = (laytext !is null ? topY : 0);
 714       float th = (laytext !is null ? laytext.textHeight-textHeight : 0);
 715       if (th <= 0) { curHeight = 0; th = 1; }
 716       float sz = cast(float)(GHeight-4)/th;
 717       if (sz > 1) sz = 1; else if (sz < 0.05) sz = 0.05;
 718       int sx = (sbLeft ? 2 : GWidth-BND_SCROLLBAR_WIDTH-2);
 719       vg.bndScrollSlider(sx, 2, BND_SCROLLBAR_WIDTH, GHeight-4, BND_DEFAULT, curHeight/th, sz);
 720     }
 721     if (laytext is null) {
 722       if (shipModel is null) {
 723         vg.beginPath();
 724         vg.fillColor(colorText);
 725         int drawY = (GHeight-textHeight)/2;
 726         vg.intersectScissor((sbLeft ? 2+BND_SCROLLBAR_WIDTH+2 : 4), drawY, GWidth-4-2-BND_SCROLLBAR_WIDTH-2, textHeight);
 727         vg.fontFaceId(textFont);
 728         vg.fontSize(fsizeText);
 729         vg.textAlign(NVGTextAlign.H.Center, NVGTextAlign.V.Middle);
 730         vg.text(GWidth/2, GHeight/2, "REFORMATTING");
 731         vg.fill();
 732       }
 733     }
 734     // draw text page
 735     if (laytext !is null && laytext.lineCount) {
 736       vg.beginPath();
 737       vg.fillColor(colorText);
 738       int drawY = startY;
 739       vg.intersectScissor((sbLeft ? 2+BND_SCROLLBAR_WIDTH+2 : 4), drawY, GWidth-4-2-BND_SCROLLBAR_WIDTH-2, textHeight);
 740       //FIXME: not GHeight!
 741       int lidx = laytext.findLineAtY(topY);
 742       if (lidx >= 0 && lidx < laytext.lineCount) {
 743         drawY -= topY-laytext.line(lidx).y;
 744         vg.textAlign(NVGTextAlign.H.Left, NVGTextAlign.V.Baseline);
 745         LayFontStyle lastStyle;
 746         int startx = startX;
 747         while (lidx < laytext.lineCount && drawY < GHeight) {
 748           auto ln = laytext.line(lidx);
 749           foreach (ref LayWord w; laytext.lineWords(lidx)) {
 750             if (lastStyle != w.style) {
 751               if (w.style.fontface != lastStyle.fontface) vg.fontFace(laytext.fontFace(w.style.fontface));
 752               vg.fontSize(w.style.fontsize);
 753               auto c = NVGColor(w.style.color);
 754               vg.fillColor(c);
 755               //vg.strokeColor(c);
 756               lastStyle = w.style;
 757             }
 758             // line highlighting
 759             if (newYFade && newYLine == lidx) vg.fillColor(nvgLerpRGBA(colorText, colorTextHi, newYAlpha));
 760             auto oid = w.objectIdx;
 761             if (oid >= 0) {
 762               vg.fill();
 763               laytext.objects[oid].draw(vg, startx+w.x, drawY+ln.h+ln.desc);
 764               vg.beginPath();
 765             } else {
 766               vg.text(startx+w.x, drawY+ln.h+ln.desc, laytext.wordText(w));
 767             }
 768             //TODO: draw lines over whitespace
 769             if (lastStyle.underline) vg.rect(startx+w.x, drawY+ln.h+ln.desc+1, w.w, 1);
 770             if (lastStyle.strike) vg.rect(startx+w.x, drawY+ln.h+ln.desc-w.asc/2, w.w, 1);
 771             if (lastStyle.overline) vg.rect(startx+w.x, drawY+ln.h+ln.desc-w.asc-1, w.w, 1);
 772             version(debug_draw) {
 773               vg.fill();
 774               vg.beginPath();
 775               vg.strokeWidth(1);
 776               vg.strokeColor(nvgRGB(0, 0, 255));
 777               vg.rect(startx+w.x, drawY, w.w, w.h);
 778               vg.stroke();
 779               vg.beginPath();
 780             }
 781             if (newYFade && newYLine == lidx) vg.fillColor(NVGColor(lastStyle.color));
 782           }
 783           drawY += ln.h;
 784           ++lidx;
 785         }
 786       }
 787       vg.fill();
 788     }
 789     // dim text
 790     if (!showShip) {
 791       if (colorDim.a != 1) {
 792         //vg.scissor(0, 0, GWidth, GHeight);
 793         vg.resetScissor;
 794         vg.beginPath();
 795         vg.fillColor(colorDim);
 796         vg.rect(0, 0, GWidth, GHeight);
 797         vg.fill();
 798       }
 799     }
 800     // dim more if menu is active
 801     if (inMenu || showShip || formatWorks != 0) {
 802       //vg.scissor(0, 0, GWidth, GHeight);
 803       vg.resetScissor;
 804       vg.beginPath();
 805       //vg.globalAlpha(0.5);
 806       vg.fillColor(nvgRGBA(0, 0, 0, (showShip || formatWorks != 0 ? 127 : 64)));
 807       vg.rect(0, 0, GWidth, GHeight);
 808       vg.fill();
 809     }
 810     if (shipModel !is null) {
 811       vg.endFrame();
 812       float zz = shipModel.bbox[1].z-shipModel.bbox[0].z;
 813       zz += 10;
 814       lightsClear();
 815       /*
 816       lightAdd(
 817         0, 60, 60,
 818         1.0, 0.0, 0.0
 819       );
 820       */
 821       lightAdd(
 822         //0, 0, -60,
 823         0, 0, -zz,
 824         1.0, 1.0, 1.0
 825       );
 826       drawModel(shipAngle, shipModel);
 827       vg.beginFrame(GWidth, GHeight, 1);
 828       drawShipName();
 829       //vg.endFrame();
 830     }
 831     if (formatWorks == 0) {
 832       if (inMenu) {
 833         //vg.beginFrame(GWidth, GHeight, 1);
 834         //vg.scissor(0, 0, GWidth, GHeight);
 835         vg.resetScissor;
 836         currPopup.draw();
 837         //vg.endFrame();
 838       }
 839     }
 840     if (fps !is null && fpsVisible) {
 841       //vg.beginFrame(GWidth, GHeight, 1);
 842       //vg.scissor(0, 0, GWidth, GHeight);
 843       vg.resetScissor;
 844       fps.render(vg, GWidth-fps.width-4, GHeight-fps.height-4);
 845       //vg.endFrame();
 846     }
 847     if (inGalaxyMap) drawGalaxy(vg);
 848     // mouse cursor
 849     if (curImg >= 0 && !mouseHidden) {
 850       int w, h;
 851       //vg.beginFrame(GWidth, GHeight, 1);
 852       vg.beginPath();
 853       //vg.scissor(0, 0, GWidth, GHeight);
 854       vg.resetScissor;
 855       vg.imageSize(curImg, &w, &h);
 856       if (mouseFadingAway) {
 857         mouseAlpha -= 0.1;
 858         if (mouseAlpha <= 0) { mouseFadingAway = false; mouseHidden = true; }
 859       } else {
 860         mouseAlpha = 1.0f;
 861       }
 862       vg.globalAlpha(mouseAlpha);
 863       if (!mouseHigh) {
 864         vg.fillPaint(vg.imagePattern(mouseX, mouseY, w, h, 0, curImg, 1));
 865       } else {
 866         vg.fillPaint(vg.imagePattern(mouseX, mouseY, w, h, 0, curImgWhite, 1));
 867       }
 868       vg.rect(mouseX, mouseY, w, h);
 869       vg.fill();
 870       /*
 871       if (mouseHigh) {
 872         vg.beginPath();
 873         vg.fillPaint(vg.imagePattern(mouseX, mouseY, w, h, 0, curImgWhite, 0.4));
 874         vg.rect(mouseX, mouseY, w, h);
 875         vg.fill();
 876       }
 877       */
 878       //vg.endFrame();
 879     }
 880     vg.endFrame();
 881     oglDrawConsole();
 882   };
 883
 884   void processThreads () {
 885     ReformatWorkComplete wd;
 886     for (;;) {
 887       bool workDone = false;
 888       auto res = receiveTimeout(Duration.zero,
 889         (QuitWork w) {
 890           formatWorks = -1;
 891         },
 892         (ReformatWorkComplete w) {
 893           wd = w;
 894           workDone = true;
 895         },
 896       );
 897       if (!res) { assert(!workDone); break; }
 898       if (workDone) { workDone = false; formatComplete(wd); }
 899     }
 900   }
 901
 902   auto lastTimerEventTime = MonoTime.currTime;
 903   bool somethingVisible = true;
 904
 905   sdwindow.visibilityChanged = delegate (bool vis) {
 906     //import core.stdc.stdio; printf("VISCHANGED: %s\n", (vis ? "tan" : "ona").ptr);
 907     somethingVisible = vis;
 908   };
 909
 910   conRegVar!fpsVisible("r_fps", "show fps indicator", (self, valstr) { refresh(); });
 911   conRegVar!inGalaxyMap("r_galaxymap", "show Elite galaxy map", (self, valstr) { refresh(); });
 912
 913   conRegVar!interAllowed("r_interference", "show interference", (self, valstr) { refresh(); });
 914   conRegVar!sbLeft("r_sbleft", "show scrollbar at the left side", (self, valstr) { refresh(); });
 915
 916   conRegVar!showShip("r_showship", "show Elite ship", (self, valstr) {
 917       if (eliteShipFiles.length == 0) return false;
 918       return true;
 919     },
 920     (self, valstr) {
 921       if (showShip) ensureShipModel(); else freeShipModel();
 922       refresh();
 923     },
 924   );
 925
 926   conRegFunc!(() {
 927     if (currPopup !is null) {
 928       currPopup.destroy;
 929       currPopup = null;
 930       freeShipModel();
 931       refresh();
 932     }
 933     onPopupSelect = null;
 934   })("menu_close", "close current popup menu");
 935
 936   conRegFunc!(() {
 937     if (formatWorks == 0 && !showShip && !inGalaxyMap) {
 938       currPopup.destroy;
 939       currPopup = null;
 940       ensureShipModel();
 941       createSectionMenu();
 942       refresh();
 943     }
 944   })("menu_section", "show section menu");
 945
 946   conRegFunc!(() {
 947     if (formatWorks == 0 && !showShip && !inGalaxyMap) {
 948       currPopup.destroy;
 949       currPopup = null;
 950       ensureShipModel();
 951       createRecentMenu();
 952       refresh();
 953     }
 954   })("menu_recent", "show recent menu");
 955
 956   sdwindow.eventLoop(1000/34,
 957     delegate () {
 958       processThreads();
 959       if (sdwindow.closed) return;
 960       concmdDoAll();
 961       if (isQuitRequested) { closeWindow(); return; }
 962       auto ctt = MonoTime.currTime;
 963
 964       {
 965         auto spass = (ctt-lastTimerEventTime).total!"msecs";
 966         //if (spass >= 30) { import core.stdc.stdio; printf("WARNING: too long frame time: %u\n", cast(uint)spass); }
 967         //{ import core.stdc.stdio; printf("FRAME TIME: %u\n", cast(uint)spass); }
 968         lastTimerEventTime = ctt;
 969         // update FPS timer
 970         prevt = curt;
 971         //curt = MonoTime.currTime;
 972         curt = ctt;
 973         //auto secs = cast(double)((curt-stt).total!"msecs")/1000.0;
 974         auto dt = cast(double)((curt-prevt).total!"msecs")/1000.0;
 975         if (fps !is null) fps.update(dt);
 976       }
 977
 978       // smooth scrolling
 979       if (formatWorks == 0) {
 980         enum Delta = 92*2;
 981         if (toMove < 0) {
 982           int sc = -toMove;
 983           if (sc > Delta) sc = Delta;
 984           hardScrollBy(-sc);
 985           toMove += sc;
 986           nextFadeTime = ctt+500.msecs;
 987           refresh();
 988         } else if (toMove > 0) {
 989           int sc = toMove;
 990           if (sc > Delta) sc = Delta;
 991           hardScrollBy(sc);
 992           toMove -= sc;
 993           nextFadeTime = ctt+500.msecs;
 994           refresh();
 995         } else if (arrowDir) {
 996           hardScrollBy(arrowDir*6*2);
 997           refresh();
 998         }
 999         // highlight fading
1000         if (newYFade) {
1001           if (ctt >= nextFadeTime) {
1002             if ((newYAlpha -= 0.1) <= 0) {
1003               newYFade = false;
1004             } else {
1005               nextFadeTime = ctt+25.msecs;
1006             }
1007             refresh();
1008           }
1009         }
1010       }
1011       // interference processing
1012       if (ctt >= nextIfTime) {
1013         import std.random : uniform;
1014         if (uniform!"[]"(0, 100) >= 50) { if (addIf()) refresh(); }
1015         nextIfTime += (uniform!"[]"(50, 1500)).msecs;
1016       }
1017       if (processIfs()) refresh();
1018       // ship rotation
1019       if (shipModel !is null) {
1020         shipAngle -= 1;
1021         if (shipAngle < 359) shipAngle += 360;
1022         refresh();
1023       }
1024       // mouse autohide
1025       if (!mouseFadingAway) {
1026         if (!mouseHidden && !mouseHigh) {
1027           if ((ctt-lastMMove).total!"msecs" > 2500) {
1028             //mouseHidden = true;
1029             mouseFadingAway = true;
1030             mouseAlpha = 1.0f;
1031             refresh();
1032           }
1033         }
1034       }
1035       if (somethingVisible) {
1036         // sadly, to keep framerate we have to redraw each frame, or driver will throw us out of the ship
1037         if (/*needRedraw*/true) sdwindow.redrawOpenGlSceneNow();
1038       } else {
1039         refresh();
1040       }
1041       doSaveState();
1042       // load new book?
1043       if (newBookFileName.length && formatWorks == 0) {
1044         doSaveState(true); // forced state save
1045         closeMenu();
1046         ensureShipModel();
1047         loadAndFormat(newBookFileName);
1048         newBookFileName = null;
1049         sdwindow.redrawOpenGlSceneNow();
1050         //refresh();
1051       }
1052     },
1053     delegate (KeyEvent event) {
1054       if (sdwindow.closed) return;
1055       if (conKeyEvent(event)) return;
1056       if (event.key == Key.PadEnter) event.key = Key.Enter;
1057       if ((event.modifierState&ModifierState.numLock) == 0) {
1058         switch (event.key) {
1059           case Key.Pad0: event.key = Key.Insert; break;
1060           case Key.PadDot: event.key = Key.Delete; break;
1061           case Key.Pad1: event.key = Key.End; break;
1062           case Key.Pad2: event.key = Key.Down; break;
1063           case Key.Pad3: event.key = Key.PageDown; break;
1064           case Key.Pad4: event.key = Key.Left; break;
1065           case Key.Pad6: event.key = Key.Right; break;
1066           case Key.Pad7: event.key = Key.Home; break;
1067           case Key.Pad8: event.key = Key.Up; break;
1068           case Key.Pad9: event.key = Key.PageUp; break;
1069           //case Key.PadEnter: event.key = Key.Enter; break;
1070           default:
1071         }
1072       }
1073       if (controlKey(event)) return;
1074       if (menuKey(event)) return;
1075       if (readerKey(event)) return;
1076     },
1077     delegate (MouseEvent event) {
1078       if (sdwindow.closed) return;
1079
1080       int linkAt (int msx, int msy) {
1081         if (laytext !is null && bookmeta !is null) {
1082           if (msx >= startX && msx <= endX && msy >= startY && msy <= endY) {
1083             auto widx = laytext.wordAtXY(msx-startX, topY+msy-startY);
1084             if (widx >= 0) {
1085               //writeln("word at (", msx-startX, ",", msy-startY, "): ", widx);
1086               auto w = laytext.wordByIndex(widx);
1087               while (widx >= 0) {
1088                 //writeln("word #", widx, "; href=", w.style.href);
1089                 if (!w.style.href) break;
1090                 if (auto hr = w.wordNum in bookmeta.hrefs) {
1091                   dstring href = hr.name;
1092                   if (href.length > 1 && href[0] == '#') {
1093                     href = href[1..$];
1094                     foreach (const ref id; bookmeta.ids) {
1095                       if (id.name == href) {
1096                         //pushPosition();
1097                         //goTo(id.wordidx);
1098                         return id.wordidx;
1099                       }
1100                     }
1101                     //writeln("id '", hr.name, "' not found!");
1102                     return -1;
1103                   }
1104                 }
1105                 --widx;
1106                 --w;
1107               }
1108             }
1109           }
1110         }
1111         return -1;
1112       }
1113
1114       lastMMove = MonoTime.currTime;
1115       if (mouseHidden || mouseFadingAway) {
1116         mouseHidden = false;
1117         mouseFadingAway = false;
1118         mouseAlpha = 1.0f;
1119         refresh();
1120       }
1121       if (mouseX != event.x || mouseY != event.y) {
1122         mouseX = event.x;
1123         mouseY = event.y;
1124         refresh();
1125       }
1126       if (!menuMouse(event) && !showShip) {
1127         if (event.type == MouseEventType.buttonPressed) {
1128           switch (event.button) {
1129             case MouseButton.wheelUp: hardScrollBy(-42); break;
1130             case MouseButton.wheelDown: hardScrollBy(42); break;
1131             case MouseButton.left:
1132               auto wid = linkAt(event.x, event.y);
1133               if (wid >= 0) {
1134                 pushPosition();
1135                 goTo(wid);
1136               }
1137               break;
1138             case MouseButton.right:
1139               popPosition();
1140               break;
1141             default:
1142           }
1143         }
1144       }
1145       mouseHigh = (linkAt(event.x, event.y) >= 0);
1146     },
1147     delegate (dchar ch) {
1148       if (sdwindow.closed) return;
1149       if (conCharEvent(ch)) return;
1150       if (ch == '`') { concmd("r_console tan"); return; }
1151     },
1152   );
1153   closeWindow();
1154
1155   childTid.send(QuitWork());
1156   while (formatWorks >= 0) processThreads();
1157 }
1158
1159
1160 // ////////////////////////////////////////////////////////////////////////// //
1161 void main (string[] args) {
1162   import std.path;
1163
1164   universe = Galaxy(0);
1165
1166   if (args.length == 1) {
1167     try {
1168       string lnn;
1169       foreach (string line; VFile(buildPath(RcDir, ".lastfile")).byLineCopy) {
1170         if (!line.isComment) lnn = line;
1171       }
1172       if (lnn.length) args ~= lnn;
1173     } catch (Exception) {}
1174   }
1175   if (args.length == 1) assert(0, "no filename");
1176
1177   readConfig();
1178
1179   run(args[1]);
1180 }