lib/gui/elistboxcontent.cpp

   1 #include <lib/gui/elistbox.h>
   2 #include <lib/gui/elistboxcontent.h>
   3 #include <lib/gdi/font.h>
   4 #include <lib/python/python.h>
   5
   6 /*
   7     The basic idea is to have an interface which gives all relevant list
   8     processing functions, and can be used by the listbox to browse trough
   9     the list.
  10
  11     The listbox directly uses the implemented cursor. It tries hard to avoid
  12     iterating trough the (possibly very large) list, so it should be O(1),
  13     i.e. the performance should not be influenced by the size of the list.
  14
  15     The list interface knows how to draw the current entry to a specified
  16     offset. Different interfaces can be used to adapt different lists,
  17     pre-filter lists on the fly etc.
  18
  19                 cursorSave/Restore is used to avoid re-iterating the list on redraw.
  20                 The current selection is always selected as cursor position, the
  21     cursor is then positioned to the start, and then iterated. This gives
  22     at most 2x m_items_per_page cursor movements per redraw, indepenent
  23     of the size of the list.
  24
  25     Although cursorSet is provided, it should be only used when there is no
  26     other way, as it involves iterating trough the list.
  27  */
  28
  29 iListboxContent::~iListboxContent()
  30 {
  31 }
  32
  33 iListboxContent::iListboxContent(): m_listbox(0)
  34 {
  35 }
  36
  37 void iListboxContent::setListbox(eListbox *lb)
  38 {
  39         m_listbox = lb;
  40         m_listbox->setItemHeight(getItemHeight());
  41 }
  42
  43 int iListboxContent::currentCursorSelectable()
  44 {
  45         return 1;
  46 }
  47
  48 //////////////////////////////////////
  49
  50 DEFINE_REF(eListboxPythonStringContent);
  51
  52 eListboxPythonStringContent::eListboxPythonStringContent()
  53         :m_cursor(0), m_itemheight(25)
  54 {
  55 }
  56
  57 eListboxPythonStringContent::~eListboxPythonStringContent()
  58 {
  59         Py_XDECREF(m_list);
  60 }
  61
  62 void eListboxPythonStringContent::cursorHome()
  63 {
  64         m_cursor = 0;
  65 }
  66
  67 void eListboxPythonStringContent::cursorEnd()
  68 {
  69         m_cursor = size();
  70 }
  71
  72 int eListboxPythonStringContent::cursorMove(int count)
  73 {
  74         m_cursor += count;
  75
  76         if (m_cursor < 0)
  77                 cursorHome();
  78         else if (m_cursor > size())
  79                 cursorEnd();
  80         return 0;
  81 }
  82
  83 int eListboxPythonStringContent::cursorValid()
  84 {
  85         return m_cursor < size();
  86 }
  87
  88 int eListboxPythonStringContent::cursorSet(int n)
  89 {
  90         m_cursor = n;
  91
  92         if (m_cursor < 0)
  93                 cursorHome();
  94         else if (m_cursor > size())
  95                 cursorEnd();
  96         return 0;
  97 }
  98
  99 int eListboxPythonStringContent::cursorGet()
 100 {
 101         return m_cursor;
 102 }
 103
 104 int eListboxPythonStringContent::currentCursorSelectable()
 105 {
 106         if (m_list && cursorValid())
 107         {
 108                 ePyObject item = PyList_GET_ITEM(m_list, m_cursor);
 109                 if (!PyTuple_Check(item))
 110                         return 1;
 111                 if (PyTuple_Size(item) >= 2)
 112                         return 1;
 113         }
 114         return 0;
 115 }
 116
 117 void eListboxPythonStringContent::cursorSave()
 118 {
 119         m_saved_cursor = m_cursor;
 120 }
 121
 122 void eListboxPythonStringContent::cursorRestore()
 123 {
 124         m_cursor = m_saved_cursor;
 125 }
 126
 127 int eListboxPythonStringContent::size()
 128 {
 129         if (!m_list)
 130                 return 0;
 131         return PyList_Size(m_list);
 132 }
 133
 134 void eListboxPythonStringContent::setSize(const eSize &size)
 135 {
 136         m_itemsize = size;
 137 }
 138
 139 void eListboxPythonStringContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
 140 {
 141         ePtr<gFont> fnt = new gFont("Regular", 20);
 142         painter.clip(eRect(offset, m_itemsize));
 143         style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
 144
 145         eListboxStyle *local_style = 0;
 146         bool cursorValid = this->cursorValid();
 147
 148                 /* get local listbox style, if present */
 149         if (m_listbox)
 150                 local_style = m_listbox->getLocalStyle();
 151
 152         if (local_style)
 153         {
 154                 if (selected)
 155                 {
 156                         /* if we have a local background color set, use that. */
 157                         if (local_style->m_background_color_selected_set)
 158                                 painter.setBackgroundColor(local_style->m_background_color_selected);
 159                         /* same for foreground */
 160                         if (local_style->m_foreground_color_selected_set)
 161                                 painter.setForegroundColor(local_style->m_foreground_color_selected);
 162                 }
 163                 else
 164                 {
 165                         /* if we have a local background color set, use that. */
 166                         if (local_style->m_background_color_set)
 167                                 painter.setBackgroundColor(local_style->m_background_color);
 168                         /* same for foreground */
 169                         if (local_style->m_foreground_color_set)
 170                                 painter.setForegroundColor(local_style->m_foreground_color);
 171                 }
 172         }
 173
 174         /* if we have no transparent background */
 175         if (!local_style || !local_style->m_transparent_background)
 176         {
 177                         /* blit background picture, if available (otherwise, clear only) */
 178                 if (local_style && local_style->m_background && cursorValid)
 179                         painter.blit(local_style->m_background, offset, eRect(), 0);
 180                 else
 181                         painter.clear();
 182         } else
 183         {
 184                 if (local_style->m_background && cursorValid)
 185                         painter.blit(local_style->m_background, offset, eRect(), gPainter::BT_ALPHATEST);
 186                 else if (selected && !local_style->m_selection)
 187                         painter.clear();
 188         }
 189
 190         if (m_list && cursorValid)
 191         {
 192                 int gray = 0;
 193                 ePyObject item = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
 194                 painter.setFont(fnt);
 195
 196                         /* the user can supply tuples, in this case the first one will be displayed. */
 197                 if (PyTuple_Check(item))
 198                 {
 199                         if (PyTuple_Size(item) == 1)
 200                                 gray = 1;
 201                         item = PyTuple_GET_ITEM(item, 0);
 202                 }
 203
 204                 if (selected && local_style && local_style->m_selection)
 205                         painter.blit(local_style->m_selection, offset, eRect(), gPainter::BT_ALPHATEST);
 206
 207                 if (item == Py_None)
 208                 {
 209                                 /* seperator */
 210                         int half_height = m_itemsize.height() / 2;
 211                         painter.fill(eRect(offset.x() + half_height, offset.y() + half_height - 2, m_itemsize.width() - m_itemsize.height(), 4));
 212                 } else
 213                 {
 214                         const char *string = PyString_Check(item) ? PyString_AsString(item) : "<not-a-string>";
 215                         ePoint text_offset = offset + (selected ? ePoint(2, 2) : ePoint(1, 1));
 216                         if (gray)
 217                                 painter.setForegroundColor(gRGB(0x808080));
 218                         painter.renderText(eRect(text_offset, m_itemsize), string);
 219                 }
 220
 221                 if (selected && (!local_style || !local_style->m_selection))
 222                         style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
 223         }
 224
 225         painter.clippop();
 226 }
 227
 228 void eListboxPythonStringContent::setList(ePyObject list)
 229 {
 230         Py_XDECREF(m_list);
 231         if (!PyList_Check(list))
 232         {
 233                 m_list = ePyObject();
 234         } else
 235         {
 236                 m_list = list;
 237                 Py_INCREF(m_list);
 238         }
 239
 240         if (m_listbox)
 241                 m_listbox->entryReset(false);
 242 }
 243
 244 PyObject *eListboxPythonStringContent::getCurrentSelection()
 245 {
 246         if (!(m_list && cursorValid()))
 247                 Py_RETURN_NONE;
 248
 249         ePyObject r = PyList_GET_ITEM(m_list, m_cursor);
 250         Py_XINCREF(r);
 251         return r;
 252 }
 253
 254 void eListboxPythonStringContent::invalidateEntry(int index)
 255 {
 256         if (m_listbox)
 257                 m_listbox->entryChanged(index);
 258 }
 259
 260 void eListboxPythonStringContent::invalidate()
 261 {
 262         if (m_listbox)
 263         {
 264                 int s = size();
 265                 if ( m_cursor >= s )
 266                         m_listbox->moveSelectionTo(s?s-1:0);
 267                 else
 268                         m_listbox->invalidate();
 269         }
 270 }
 271
 272 //////////////////////////////////////
 273
 274 void eListboxPythonConfigContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
 275 {
 276         ePtr<gFont> fnt = new gFont("Regular", 20);
 277         ePtr<gFont> fnt2 = new gFont("Regular", 16);
 278         eRect itemrect(offset, m_itemsize);
 279         eListboxStyle *local_style = 0;
 280         bool cursorValid = this->cursorValid();
 281
 282         painter.clip(itemrect);
 283         style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
 284
 285                 /* get local listbox style, if present */
 286         if (m_listbox)
 287                 local_style = m_listbox->getLocalStyle();
 288
 289         if (local_style)
 290         {
 291                 if (selected)
 292                 {
 293                         /* if we have a local background color set, use that. */
 294                         if (local_style->m_background_color_selected_set)
 295                                 painter.setBackgroundColor(local_style->m_background_color_selected);
 296                         /* same for foreground */
 297                         if (local_style->m_foreground_color_selected_set)
 298                                 painter.setForegroundColor(local_style->m_foreground_color_selected);
 299                 }
 300                 else
 301                 {
 302                         /* if we have a local background color set, use that. */
 303                         if (local_style->m_background_color_set)
 304                                 painter.setBackgroundColor(local_style->m_background_color);
 305                         /* same for foreground */
 306                         if (local_style->m_foreground_color_set)
 307                                 painter.setForegroundColor(local_style->m_foreground_color);
 308                 }
 309         }
 310
 311         if (!local_style || !local_style->m_transparent_background)
 312                 /* if we have no transparent background */
 313         {
 314                 /* blit background picture, if available (otherwise, clear only) */
 315                 if (local_style && local_style->m_background && cursorValid)
 316                         painter.blit(local_style->m_background, offset, eRect(), 0);
 317                 else
 318                         painter.clear();
 319         } else
 320         {
 321                 if (local_style->m_background && cursorValid)
 322                         painter.blit(local_style->m_background, offset, eRect(), gPainter::BT_ALPHATEST);
 323                 else if (selected && !local_style->m_selection)
 324                         painter.clear();
 325         }
 326
 327         if (m_list && cursorValid)
 328         {
 329                         /* get current list item */
 330                 ePyObject item = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
 331                 ePyObject text, value;
 332                 painter.setFont(fnt);
 333
 334                 if (selected && local_style && local_style->m_selection)
 335                         painter.blit(local_style->m_selection, offset, eRect(), gPainter::BT_ALPHATEST);
 336
 337                         /* the first tuple element is a string for the left side.
 338                            the second one will be called, and the result shall be an tuple.
 339
 340                            of this tuple,
 341                            the first one is the type (string).
 342                            the second one is the value. */
 343                 if (PyTuple_Check(item))
 344                 {
 345                                 /* handle left part. get item from tuple, convert to string, display. */
 346                         text = PyTuple_GET_ITEM(item, 0);
 347                         text = PyObject_Str(text); /* creates a new object - old object was borrowed! */
 348                         const char *string = (text && PyString_Check(text)) ? PyString_AsString(text) : "<not-a-string>";
 349                         eSize item_left = eSize(m_seperation, m_itemsize.height());
 350                         eSize item_right = eSize(m_itemsize.width() - m_seperation, m_itemsize.height());
 351                         painter.renderText(eRect(offset, item_left), string, gPainter::RT_HALIGN_LEFT);
 352                         Py_XDECREF(text);
 353
 354                                 /* when we have no label, align value to the left. (FIXME:
 355                                    don't we want to specifiy this individually?) */
 356                         int value_alignment_left = !*string;
 357
 358                                 /* now, handle the value. get 2nd part from tuple*/
 359                         if (PyTuple_Size(item) >= 2) // when no 2nd entry is in tuple this is a non selectable entry without config part
 360                                 value = PyTuple_GET_ITEM(item, 1);
 361
 362                         if (value)
 363                         {
 364                                 ePyObject args = PyTuple_New(1);
 365                                 PyTuple_SET_ITEM(args, 0, PyInt_FromLong(selected));
 366
 367                                         /* CallObject will call __call__ which should return the value tuple */
 368                                 value = PyObject_CallObject(value, args);
 369
 370                                 if (PyErr_Occurred())
 371                                         PyErr_Print();
 372
 373                                 Py_DECREF(args);
 374                                         /* the PyInt was stolen. */
 375                         }
 376
 377                                 /*  check if this is really a tuple */
 378                         if (value && PyTuple_Check(value))
 379                         {
 380                                         /* convert type to string */
 381                                 ePyObject type = PyTuple_GET_ITEM(value, 0);
 382                                 const char *atype = (type && PyString_Check(type)) ? PyString_AsString(type) : 0;
 383
 384                                 if (atype)
 385                                 {
 386                                         if (!strcmp(atype, "text"))
 387                                         {
 388                                                 ePyObject pvalue = PyTuple_GET_ITEM(value, 1);
 389                                                 const char *value = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
 390                                                 painter.setFont(fnt2);
 391                                                 if (value_alignment_left)
 392                                                         painter.renderText(eRect(offset, item_right), value, gPainter::RT_HALIGN_LEFT);
 393                                                 else
 394                                                         painter.renderText(eRect(offset + eSize(m_seperation, 0), item_right), value, gPainter::RT_HALIGN_RIGHT);
 395
 396                                                         /* pvalue is borrowed */
 397                                         } else if (!strcmp(atype, "slider"))
 398                                         {
 399                                                 ePyObject pvalue = PyTuple_GET_ITEM(value, 1);
 400                                                 ePyObject psize = PyTuple_GET_ITEM(value, 2);
 401
 402                                                         /* convert value to Long. fallback to -1 on error. */
 403                                                 int value = (pvalue && PyInt_Check(pvalue)) ? PyInt_AsLong(pvalue) : -1;
 404                                                 int size = (pvalue && PyInt_Check(psize)) ? PyInt_AsLong(psize) : 100;
 405
 406                                                         /* calc. slider length */
 407                                                 int width = item_right.width() * value / size;
 408                                                 int height = item_right.height();
 409
 410
 411                                                         /* draw slider */
 412                                                 //painter.fill(eRect(offset.x() + m_seperation, offset.y(), width, height));
 413                                                 //hack - make it customizable
 414                                                 painter.fill(eRect(offset.x() + m_seperation, offset.y() + 5, width, height-10));
 415
 416                                                         /* pvalue is borrowed */
 417                                         } else if (!strcmp(atype, "mtext"))
 418                                         {
 419                                                 ePyObject pvalue = PyTuple_GET_ITEM(value, 1);
 420                                                 const char *text = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
 421                                                 int xoffs = value_alignment_left ? 0 : m_seperation;
 422                                                 ePtr<eTextPara> para = new eTextPara(eRect(offset + eSize(xoffs, 0), item_right));
 423                                                 para->setFont(fnt2);
 424                                                 para->renderString(text, 0);
 425                                                 para->realign(value_alignment_left ? eTextPara::dirLeft : eTextPara::dirRight);
 426                                                 int glyphs = para->size();
 427
 428                                                 ePyObject plist;
 429
 430                                                 if (PyTuple_Size(value) >= 3)
 431                                                         plist = PyTuple_GET_ITEM(value, 2);
 432
 433                                                 int entries = 0;
 434
 435                                                 if (plist && PyList_Check(plist))
 436                                                         entries = PyList_Size(plist);
 437
 438                                                 int left=0, right=0, last=-1;
 439                                                 eRect bbox;
 440                                                 for (int i = 0; i < entries; ++i)
 441                                                 {
 442                                                         ePyObject entry = PyList_GET_ITEM(plist, i);
 443                                                         int num = PyInt_Check(entry) ? PyInt_AsLong(entry) : -1;
 444
 445                                                         if ((num < 0) || (num >= glyphs))
 446                                                                 eWarning("glyph index %d in PythonConfigList out of bounds!", num);
 447                                                         else
 448                                                         {
 449                                                                 if (last+1 != num && last != -1) {
 450                                                                         bbox = eRect(left, offset.y(), right-left, m_itemsize.height());
 451                                                                         painter.fill(bbox);
 452                                                                 }
 453                                                                 para->setGlyphFlag(num, GS_INVERT);
 454                                                                 bbox = para->getGlyphBBox(num);
 455                                                                 if (last+1 != num || last == -1)
 456                                                                         left = bbox.left();
 457                                                                 right = bbox.left() + bbox.width();
 458                                                                 last = num;
 459                                                         }
 460                                                                 /* entry is borrowed */
 461                                                 }
 462                                                 if (last != -1) {
 463                                                         bbox = eRect(left, offset.y(), right-left, m_itemsize.height());
 464                                                         painter.fill(bbox);
 465                                                 }
 466                                                 painter.renderPara(para, ePoint(0, 0));
 467                                                         /* pvalue is borrowed */
 468                                                         /* plist is 0 or borrowed */
 469                                         }
 470                                 }
 471                                         /* type is borrowed */
 472                         } else if (value)
 473                                 eWarning("eListboxPythonConfigContent: second value of tuple is not a tuple.");
 474                         if (value)
 475                                 Py_DECREF(value);
 476                 }
 477
 478                 if (selected && (!local_style || !local_style->m_selection))
 479                         style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
 480         }
 481
 482         painter.clippop();
 483 }
 484
 485 int eListboxPythonConfigContent::currentCursorSelectable()
 486 {
 487         return eListboxPythonStringContent::currentCursorSelectable();
 488 }
 489
 490 //////////////////////////////////////
 491
 492         /* todo: make a real infrastructure here! */
 493 RESULT SwigFromPython(ePtr<gPixmap> &res, PyObject *obj);
 494
 495 eListboxPythonMultiContent::eListboxPythonMultiContent()
 496         :m_clip(gRegion::invalidRegion()), m_old_clip(gRegion::invalidRegion())
 497 {
 498 }
 499
 500 eListboxPythonMultiContent::~eListboxPythonMultiContent()
 501 {
 502         Py_XDECREF(m_buildFunc);
 503         Py_XDECREF(m_selectableFunc);
 504 }
 505
 506 void eListboxPythonMultiContent::setSelectionClip(eRect &rect, bool update)
 507 {
 508         m_selection_clip = rect;
 509         if (m_listbox)
 510                 rect.moveBy(ePoint(0, m_listbox->getEntryTop()));
 511         if (m_clip.valid())
 512                 m_clip |= rect;
 513         else
 514                 m_clip = rect;
 515         if (update && m_listbox)
 516                 m_listbox->entryChanged(m_cursor);
 517 }
 518
 519 static void clearRegionHelper(gPainter &painter, eListboxStyle *local_style, const ePoint &offset, ePyObject &pbackColor, bool cursorValid, bool clear=true)
 520 {
 521         if (pbackColor)
 522         {
 523                 unsigned int color = PyInt_AsUnsignedLongMask(pbackColor);
 524                 painter.setBackgroundColor(gRGB(color));
 525         }
 526         else if (local_style)
 527         {
 528                 if (local_style && local_style->m_background_color_set)
 529                         painter.setBackgroundColor(local_style->m_background_color);
 530                 if (local_style->m_background && cursorValid)
 531                 {
 532                         if (local_style->m_transparent_background)
 533                                 painter.blit(local_style->m_background, offset, eRect(), gPainter::BT_ALPHATEST);
 534                         else
 535                                 painter.blit(local_style->m_background, offset, eRect(), 0);
 536                         return;
 537                 }
 538                 else if (local_style->m_transparent_background)
 539                         return;
 540         }
 541         if (clear)
 542                 painter.clear();
 543 }
 544
 545 static void clearRegionSelectedHelper(gPainter &painter, eListboxStyle *local_style, const ePoint &offset, ePyObject &pbackColorSelected, bool cursorValid, bool clear=true)
 546 {
 547         if (pbackColorSelected)
 548         {
 549                 unsigned int color = PyInt_AsUnsignedLongMask(pbackColorSelected);
 550                 painter.setBackgroundColor(gRGB(color));
 551         }
 552         else if (local_style)
 553         {
 554                 if (local_style && local_style->m_background_color_selected_set)
 555                         painter.setBackgroundColor(local_style->m_background_color_selected);
 556                 if (local_style->m_background && cursorValid)
 557                 {
 558                         if (local_style->m_transparent_background)
 559                                 painter.blit(local_style->m_background, offset, eRect(), gPainter::BT_ALPHATEST);
 560                         else
 561                                 painter.blit(local_style->m_background, offset, eRect(), 0);
 562                         return;
 563                 }
 564         }
 565         if (clear)
 566                 painter.clear();
 567 }
 568
 569 static void clearRegion(gPainter &painter, eWindowStyle &style, eListboxStyle *local_style, ePyObject pforeColor, ePyObject pforeColorSelected, ePyObject pbackColor, ePyObject pbackColorSelected, int selected, gRegion &rc, eRect &sel_clip, const ePoint &offset, bool cursorValid, bool clear=true)
 570 {
 571         if (selected && sel_clip.valid())
 572         {
 573                 gRegion part = rc - sel_clip;
 574                 if (!part.empty())
 575                 {
 576                         painter.clip(part);
 577                         style.setStyle(painter, eWindowStyle::styleListboxNormal);
 578                         clearRegionHelper(painter, local_style, offset, pbackColor, cursorValid, clear);
 579                         painter.clippop();
 580                         selected = 0;
 581                 }
 582                 part = rc & sel_clip;
 583                 if (!part.empty())
 584                 {
 585                         painter.clip(part);
 586                         style.setStyle(painter, eWindowStyle::styleListboxSelected);
 587                         clearRegionSelectedHelper(painter, local_style, offset, pbackColorSelected, cursorValid, clear);
 588                         painter.clippop();
 589                         selected = 1;
 590                 }
 591         }
 592         else if (selected)
 593         {
 594                 style.setStyle(painter, eWindowStyle::styleListboxSelected);
 595                 clearRegionSelectedHelper(painter, local_style, offset, pbackColorSelected, cursorValid, clear);
 596                 if (local_style && local_style->m_selection)
 597                         painter.blit(local_style->m_selection, offset, eRect(), gPainter::BT_ALPHATEST);
 598         }
 599         else
 600         {
 601                 style.setStyle(painter, eWindowStyle::styleListboxNormal);
 602                 clearRegionHelper(painter, local_style, offset, pbackColor, cursorValid, clear);
 603         }
 604
 605         if (selected)
 606         {
 607                 if (pforeColorSelected)
 608                 {
 609                         unsigned int color = PyInt_AsUnsignedLongMask(pforeColorSelected);
 610                         painter.setForegroundColor(gRGB(color));
 611                 }
 612                 /* if we have a local foreground color set, use that. */
 613                 else if (local_style && local_style->m_foreground_color_selected_set)
 614                         painter.setForegroundColor(local_style->m_foreground_color_selected);
 615         }
 616         else
 617         {
 618                 if (pforeColor)
 619                 {
 620                         unsigned int color = PyInt_AsUnsignedLongMask(pforeColor);
 621                         painter.setForegroundColor(gRGB(color));
 622                 }
 623                 /* if we have a local foreground color set, use that. */
 624                 else if (local_style && local_style->m_foreground_color_set)
 625                         painter.setForegroundColor(local_style->m_foreground_color);
 626         }
 627 }
 628
 629 static ePyObject lookupColor(ePyObject color, ePyObject data)
 630 {
 631         if (color == Py_None)
 632                 return ePyObject();
 633
 634         if ((!color) && (!data))
 635                 return color;
 636
 637         unsigned int icolor = PyInt_AsUnsignedLongMask(color);
 638
 639                 /* check if we have the "magic" template color */
 640         if ((icolor & 0xFF000000) == 0xFF000000)
 641         {
 642                 int index = icolor & 0xFFFFFF;
 643                 eDebug("[eListboxPythonMultiContent] template color index: %d", index);
 644                 return PyTuple_GetItem(data, index);
 645         }
 646
 647         if (color == Py_None)
 648                 return ePyObject();
 649
 650         return color;
 651 }
 652
 653 void eListboxPythonMultiContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
 654 {
 655         gRegion itemregion(eRect(offset, m_itemsize));
 656         eListboxStyle *local_style = 0;
 657         eRect sel_clip(m_selection_clip);
 658         bool cursorValid = this->cursorValid();
 659         if (sel_clip.valid())
 660                 sel_clip.moveBy(offset);
 661
 662                 /* get local listbox style, if present */
 663         if (m_listbox)
 664                 local_style = m_listbox->getLocalStyle();
 665
 666         painter.clip(itemregion);
 667         clearRegion(painter, style, local_style, ePyObject(), ePyObject(), ePyObject(), ePyObject(), selected, itemregion, sel_clip, offset, cursorValid);
 668
 669         ePyObject items, buildfunc_ret;
 670
 671         if (m_list && cursorValid)
 672         {
 673                         /* a multicontent list can be used in two ways:
 674                                 either each item is a list of (TYPE,...)-tuples,
 675                                 or there is a template defined, which is a list of (TYPE,...)-tuples,
 676                                 and the list is an unformatted tuple. The template then references items from the list.
 677                         */
 678                 items = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
 679
 680                 if (m_buildFunc)
 681                 {
 682                         if (PyCallable_Check(m_buildFunc))  // when we have a buildFunc then call it
 683                         {
 684                                 if (PyTuple_Check(items))
 685                                         buildfunc_ret = items = PyObject_CallObject(m_buildFunc, items);
 686                                 else
 687                                         eDebug("items is no tuple");
 688                         }
 689                         else
 690                                 eDebug("buildfunc is not callable");
 691                 }
 692
 693                 if (!items)
 694                 {
 695                         eDebug("eListboxPythonMultiContent: error getting item %d", m_cursor);
 696                         goto error_out;
 697                 }
 698
 699                 if (!m_template)
 700                 {
 701                         if (!PyList_Check(items))
 702                         {
 703                                 eDebug("eListboxPythonMultiContent: list entry %d is not a list (non-templated)", m_cursor);
 704                                 goto error_out;
 705                         }
 706                 } else
 707                 {
 708                         if (!PyTuple_Check(items))
 709                         {
 710                                 eDebug("eListboxPythonMultiContent: list entry %d is not a tuple (templated)", m_cursor);
 711                                 goto error_out;
 712                         }
 713                 }
 714
 715                 ePyObject data;
 716
 717                         /* if we have a template, use the template for the actual formatting.
 718                                 we will later detect that "data" is present, and refer to that, instead
 719                                 of the immediate value. */
 720                 int start = 1;
 721                 if (m_template)
 722                 {
 723                         data = items;
 724                         items = m_template;
 725                         start = 0;
 726                 }
 727
 728                 int size = PyList_Size(items);
 729                 for (int i = start; i < size; ++i)
 730                 {
 731                         ePyObject item = PyList_GET_ITEM(items, i); // borrowed reference!
 732
 733                         if (!item)
 734                         {
 735                                 eDebug("eListboxPythonMultiContent: ?");
 736                                 goto error_out;
 737                         }
 738
 739                         if (!PyTuple_Check(item))
 740                         {
 741                                 eDebug("eListboxPythonMultiContent did not receive a tuple.");
 742                                 goto error_out;
 743                         }
 744
 745                         int size = PyTuple_Size(item);
 746
 747                         if (!size)
 748                         {
 749                                 eDebug("eListboxPythonMultiContent receive empty tuple.");
 750                                 goto error_out;
 751                         }
 752
 753                         int type = PyInt_AsLong(PyTuple_GET_ITEM(item, 0));
 754
 755                         switch (type)
 756                         {
 757                         case TYPE_TEXT: // text
 758                         {
 759                         /*
 760                                 (0, x, y, width, height, fnt, flags, "bla" [, color, colorSelected, backColor, backColorSelected, borderWidth, borderColor] )
 761                         */
 762                                 ePyObject px = PyTuple_GET_ITEM(item, 1),
 763                                                         py = PyTuple_GET_ITEM(item, 2),
 764                                                         pwidth = PyTuple_GET_ITEM(item, 3),
 765                                                         pheight = PyTuple_GET_ITEM(item, 4),
 766                                                         pfnt = PyTuple_GET_ITEM(item, 5),
 767                                                         pflags = PyTuple_GET_ITEM(item, 6),
 768                                                         pstring = PyTuple_GET_ITEM(item, 7),
 769                                                         pforeColor, pforeColorSelected, pbackColor, pbackColorSelected, pborderWidth, pborderColor;
 770
 771                                 if (!(px && py && pwidth && pheight && pfnt && pflags && pstring))
 772                                 {
 773                                         eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_TEXT, x, y, width, height, fnt, flags, string [, color, backColor, backColorSelected, borderWidth, borderColor])");
 774                                         goto error_out;
 775                                 }
 776
 777                                 if (size > 8)
 778                                         pforeColor = lookupColor(PyTuple_GET_ITEM(item, 8), data);
 779
 780                                 if (size > 9)
 781                                         pforeColorSelected = lookupColor(PyTuple_GET_ITEM(item, 9), data);
 782
 783                                 if (size > 10)
 784                                         pbackColor = lookupColor(PyTuple_GET_ITEM(item, 10), data);
 785
 786                                 if (size > 11)
 787                                         pbackColorSelected = lookupColor(PyTuple_GET_ITEM(item, 11), data);
 788
 789                                 if (size > 12)
 790                                 {
 791                                         pborderWidth = PyTuple_GET_ITEM(item, 12);
 792                                         if (pborderWidth == Py_None)
 793                                                 pborderWidth=ePyObject();
 794                                 }
 795                                 if (size > 13)
 796                                         pborderColor = lookupColor(PyTuple_GET_ITEM(item, 13), data);
 797
 798                                 if (PyInt_Check(pstring) && data) /* if the string is in fact a number, it refers to the 'data' list. */
 799                                         pstring = PyTuple_GetItem(data, PyInt_AsLong(pstring));
 800
 801                                                         /* don't do anything if we have 'None' as string */
 802                                 if (pstring == Py_None)
 803                                         continue;
 804
 805                                 const char *string = (PyString_Check(pstring)) ? PyString_AsString(pstring) : "<not-a-string>";
 806                                 int x = PyInt_AsLong(px) + offset.x();
 807                                 int y = PyInt_AsLong(py) + offset.y();
 808                                 int width = PyInt_AsLong(pwidth);
 809                                 int height = PyInt_AsLong(pheight);
 810                                 int flags = PyInt_AsLong(pflags);
 811                                 int fnt = PyInt_AsLong(pfnt);
 812                                 int bwidth = pborderWidth ? PyInt_AsLong(pborderWidth) : 0;
 813
 814                                 if (m_font.find(fnt) == m_font.end())
 815                                 {
 816                                         eDebug("eListboxPythonMultiContent: specified font %d was not found!", fnt);
 817                                         goto error_out;
 818                                 }
 819
 820                                 eRect rect(x+bwidth, y+bwidth, width-bwidth*2, height-bwidth*2);
 821                                 painter.clip(rect);
 822
 823                                 {
 824                                         gRegion rc(rect);
 825                                         bool mustClear = (selected && pbackColorSelected) || (!selected && pbackColor);
 826                                         clearRegion(painter, style, local_style, pforeColor, pforeColorSelected, pbackColor, pbackColorSelected, selected, rc, sel_clip, offset, cursorValid, mustClear);
 827                                 }
 828
 829                                 painter.setFont(m_font[fnt]);
 830                                 painter.renderText(rect, string, flags);
 831                                 painter.clippop();
 832
 833                                 // draw border
 834                                 if (bwidth)
 835                                 {
 836                                         eRect rect(eRect(x, y, width, height));
 837                                         painter.clip(rect);
 838                                         if (pborderColor)
 839                                         {
 840                                                 unsigned int color = PyInt_AsUnsignedLongMask(pborderColor);
 841                                                 painter.setForegroundColor(gRGB(color));
 842                                         }
 843
 844                                         rect.setRect(x, y, width, bwidth);
 845                                         painter.fill(rect);
 846
 847                                         rect.setRect(x, y+bwidth, bwidth, height-bwidth);
 848                                         painter.fill(rect);
 849
 850                                         rect.setRect(x+bwidth, y+height-bwidth, width-bwidth, bwidth);
 851                                         painter.fill(rect);
 852
 853                                         rect.setRect(x+width-bwidth, y+bwidth, bwidth, height-bwidth);
 854                                         painter.fill(rect);
 855
 856                                         painter.clippop();
 857                                 }
 858                                 break;
 859                         }
 860                         case TYPE_PROGRESS_PIXMAP: // Progress
 861                         /*
 862                                 (1, x, y, width, height, filled_percent, pixmap [, borderWidth, foreColor, backColor, backColorSelected] )
 863                         */
 864                         case TYPE_PROGRESS: // Progress
 865                         {
 866                         /*
 867                                 (1, x, y, width, height, filled_percent [, borderWidth, foreColor, backColor, backColorSelected] )
 868                         */
 869                                 ePyObject px = PyTuple_GET_ITEM(item, 1),
 870                                                         py = PyTuple_GET_ITEM(item, 2),
 871                                                         pwidth = PyTuple_GET_ITEM(item, 3),
 872                                                         pheight = PyTuple_GET_ITEM(item, 4),
 873                                                         pfilled_perc = PyTuple_GET_ITEM(item, 5),
 874                                                         ppixmap, pborderWidth, pforeColor, pforeColorSelected, pbackColor, pbackColorSelected;
 875                                 int idx = 6;
 876                                 if (type == TYPE_PROGRESS)
 877                                 {
 878                                         if (!(px && py && pwidth && pheight && pfilled_perc))
 879                                         {
 880                                                 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PROGRESS, x, y, width, height, filled percent [,border width, foreColor, backColor, backColorSelected]))");
 881                                                 goto error_out;
 882                                         }
 883                                 }
 884                                 else
 885                                 {
 886                                         ppixmap = PyTuple_GET_ITEM(item, idx++);
 887                                         if (ppixmap == Py_None)
 888                                                 continue;
 889                                         if (!(px && py && pwidth && pheight && pfilled_perc, ppixmap))
 890                                         {
 891                                                 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PROGRESS_PIXMAP, x, y, width, height, filled percent, pixmap, [,border width, foreColor, backColor, backColorSelected]))");
 892                                                 goto error_out;
 893                                         }
 894                                 }
 895
 896                                 if (size > idx)
 897                                 {
 898                                         pborderWidth = PyTuple_GET_ITEM(item, idx++);
 899                                         if (pborderWidth == Py_None)
 900                                                 pborderWidth = ePyObject();
 901                                 }
 902                                 if (size > idx)
 903                                 {
 904                                         pforeColor = PyTuple_GET_ITEM(item, idx++);
 905                                         if (pforeColor == Py_None)
 906                                                 pforeColor = ePyObject();
 907                                 }
 908                                 if (size > idx)
 909                                 {
 910                                         pforeColorSelected = PyTuple_GET_ITEM(item, idx++);
 911                                         if (pforeColorSelected == Py_None)
 912                                                 pforeColorSelected=ePyObject();
 913                                 }
 914                                 if (size > idx)
 915                                 {
 916                                         pbackColor = PyTuple_GET_ITEM(item, idx++);
 917                                         if (pbackColor == Py_None)
 918                                                 pbackColor=ePyObject();
 919                                 }
 920                                 if (size > idx)
 921                                 {
 922                                         pbackColorSelected = PyTuple_GET_ITEM(item, idx++);
 923                                         if (pbackColorSelected == Py_None)
 924                                                 pbackColorSelected=ePyObject();
 925                                 }
 926
 927                                 int x = PyInt_AsLong(px) + offset.x();
 928                                 int y = PyInt_AsLong(py) + offset.y();
 929                                 int width = PyInt_AsLong(pwidth);
 930                                 int height = PyInt_AsLong(pheight);
 931                                 int filled = PyInt_AsLong(pfilled_perc);
 932
 933                                 if ((filled < 0) && data) /* if the string is in a negative number, it refers to the 'data' list. */
 934                                         filled = PyInt_AsLong(PyTuple_GetItem(data, -filled));
 935
 936                                                         /* don't do anything if percent out of range */
 937                                 if ((filled < 0) || (filled > 100))
 938                                         continue;
 939
 940                                 int bwidth = pborderWidth ? PyInt_AsLong(pborderWidth) : 2;
 941
 942                                 eRect rect(x, y, width, height);
 943                                 painter.clip(rect);
 944
 945                                 {
 946                                         gRegion rc(rect);
 947                                         bool mustClear = (selected && pbackColorSelected) || (!selected && pbackColor);
 948                                         clearRegion(painter, style, local_style, pforeColor, pforeColorSelected, pbackColor, pbackColorSelected, selected, rc, sel_clip, offset, cursorValid, mustClear);
 949                                 }
 950
 951                                 // border
 952                                 rect.setRect(x, y, width, bwidth);
 953                                 painter.fill(rect);
 954
 955                                 rect.setRect(x, y+bwidth, bwidth, height-bwidth);
 956                                 painter.fill(rect);
 957
 958                                 rect.setRect(x+bwidth, y+height-bwidth, width-bwidth, bwidth);
 959                                 painter.fill(rect);
 960
 961                                 rect.setRect(x+width-bwidth, y+bwidth, bwidth, height-bwidth);
 962                                 painter.fill(rect);
 963
 964                                 rect.setRect(x+bwidth, y+bwidth, (width-bwidth*2) * filled / 100, height-bwidth*2);
 965
 966                                 // progress
 967                                 if (ppixmap)
 968                                 {
 969                                         ePtr<gPixmap> pixmap;
 970                                         if (PyInt_Check(ppixmap) && data) /* if the pixmap is in fact a number, it refers to the data list */
 971                                                 ppixmap = PyTuple_GetItem(data, PyInt_AsLong(ppixmap));
 972
 973                                         if (SwigFromPython(pixmap, ppixmap))
 974                                         {
 975                                                 eDebug("eListboxPythonMultiContent (Pixmap) get pixmap failed");
 976                                                 painter.clippop();
 977                                                 continue;
 978                                         }
 979                                         painter.blit(pixmap, rect.topLeft(), rect, 0);
 980                                 }
 981                                 else
 982                                         painter.fill(rect);
 983
 984                                 painter.clippop();
 985                                 break;
 986                         }
 987                         case TYPE_PIXMAP_ALPHABLEND:
 988                         case TYPE_PIXMAP_ALPHATEST:
 989                         case TYPE_PIXMAP: // pixmap
 990                         {
 991                         /*
 992                                 (2, x, y, width, height, pixmap [, backColor, backColorSelected] )
 993                         */
 994
 995                                 ePyObject px = PyTuple_GET_ITEM(item, 1),
 996                                                         py = PyTuple_GET_ITEM(item, 2),
 997                                                         pwidth = PyTuple_GET_ITEM(item, 3),
 998                                                         pheight = PyTuple_GET_ITEM(item, 4),
 999                                                         ppixmap = PyTuple_GET_ITEM(item, 5),
1000                                                         pbackColor, pbackColorSelected;
1001
1002                                 if (!(px && py && pwidth && pheight && ppixmap))
1003                                 {
1004                                         eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PIXMAP, x, y, width, height, pixmap [, backColor, backColorSelected] ))");
1005                                         goto error_out;
1006                                 }
1007
1008                                 if (PyInt_Check(ppixmap) && data) /* if the pixemap is in fact a number, it refers to the 'data' list. */
1009                                         ppixmap = PyTuple_GetItem(data, PyInt_AsLong(ppixmap));
1010
1011                                                         /* don't do anything if we have 'None' as pixmap */
1012                                 if (ppixmap == Py_None)
1013                                         continue;
1014
1015                                 int x = PyInt_AsLong(px) + offset.x();
1016                                 int y = PyInt_AsLong(py) + offset.y();
1017                                 int width = PyInt_AsLong(pwidth);
1018                                 int height = PyInt_AsLong(pheight);
1019                                 ePtr<gPixmap> pixmap;
1020                                 if (SwigFromPython(pixmap, ppixmap))
1021                                 {
1022                                         eDebug("eListboxPythonMultiContent (Pixmap) get pixmap failed");
1023                                         goto error_out;
1024                                 }
1025
1026                                 if (size > 6)
1027                                         pbackColor = lookupColor(PyTuple_GET_ITEM(item, 6), data);
1028
1029                                 if (size > 7)
1030                                         pbackColorSelected = lookupColor(PyTuple_GET_ITEM(item, 7), data);
1031
1032                                 eRect rect(x, y, width, height);
1033                                 painter.clip(rect);
1034
1035                                 {
1036                                         gRegion rc(rect);
1037                                         bool mustClear = (selected && pbackColorSelected) || (!selected && pbackColor);
1038                                         clearRegion(painter, style, local_style, ePyObject(), ePyObject(), pbackColor, pbackColorSelected, selected, rc, sel_clip, offset, cursorValid, mustClear);
1039                                 }
1040
1041                                 painter.blit(pixmap, rect.topLeft(), rect, (type == TYPE_PIXMAP_ALPHATEST) ? gPainter::BT_ALPHATEST : (type == TYPE_PIXMAP_ALPHABLEND) ? gPainter::BT_ALPHABLEND : 0);
1042                                 painter.clippop();
1043                                 break;
1044                         }
1045                         default:
1046                                 eWarning("eListboxPythonMultiContent received unknown type (%d)", type);
1047                                 goto error_out;
1048                         }
1049                 }
1050         }
1051
1052         if (selected && !sel_clip.valid() && (!local_style || !local_style->m_selection))
1053                 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
1054
1055 error_out:
1056         if (buildfunc_ret)
1057                 Py_DECREF(buildfunc_ret);
1058
1059         painter.clippop();
1060 }
1061
1062 void eListboxPythonMultiContent::setBuildFunc(ePyObject cb)
1063 {
1064         Py_XDECREF(m_buildFunc);
1065         m_buildFunc=cb;
1066         Py_XINCREF(m_buildFunc);
1067 }
1068
1069 void eListboxPythonMultiContent::setSelectableFunc(ePyObject cb)
1070 {
1071         Py_XDECREF(m_selectableFunc);
1072         m_selectableFunc=cb;
1073         Py_XINCREF(m_selectableFunc);
1074 }
1075
1076 int eListboxPythonMultiContent::currentCursorSelectable()
1077 {
1078         /* each list-entry is a list of tuples. if the first of these is none, it's not selectable */
1079         if (m_list && cursorValid())
1080         {
1081                 if (m_selectableFunc && PyCallable_Check(m_selectableFunc))
1082                 {
1083                         ePyObject args = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
1084                         if (PyTuple_Check(args))
1085                         {
1086                                 ePyObject ret = PyObject_CallObject(m_selectableFunc, args);
1087                                 if (ret)
1088                                 {
1089                                         bool retval = ret == Py_True;
1090                                         Py_DECREF(ret);
1091                                         return retval;
1092                                 }
1093                                 eDebug("call m_selectableFunc failed!!! assume not callable");
1094                         }
1095                         else
1096                                 eDebug("m_list[m_cursor] is not a tuple!!! assume not callable");
1097                 }
1098                 else
1099                 {
1100                         ePyObject item = PyList_GET_ITEM(m_list, m_cursor);
1101                         if (PyList_Check(item))
1102                         {
1103                                 item = PyList_GET_ITEM(item, 0);
1104                                 if (item != Py_None)
1105                                         return 1;
1106                         } else if (PyTuple_Check(item))
1107                         {
1108                                 item = PyTuple_GET_ITEM(item, 0);
1109                                 if (item != Py_None)
1110                                         return 1;
1111                         }
1112                         else if (m_buildFunc && PyCallable_Check(m_buildFunc))
1113                                 return 1;
1114                 }
1115         }
1116         return 0;
1117 }
1118
1119 void eListboxPythonMultiContent::setFont(int fnt, gFont *font)
1120 {
1121         if (font)
1122                 m_font[fnt] = font;
1123         else
1124                 m_font.erase(fnt);
1125 }
1126
1127 void eListboxPythonMultiContent::setItemHeight(int height)
1128 {
1129         m_itemheight = height;
1130         if (m_listbox)
1131                 m_listbox->setItemHeight(height);
1132 }
1133
1134 void eListboxPythonMultiContent::setList(ePyObject list)
1135 {
1136         m_old_clip = m_clip = gRegion::invalidRegion();
1137         eListboxPythonStringContent::setList(list);
1138 }
1139
1140 void eListboxPythonMultiContent::updateClip(gRegion &clip)
1141 {
1142         if (m_clip.valid())
1143         {
1144                 clip &= m_clip;
1145                 if (m_old_clip.valid() && !(m_clip-m_old_clip).empty())
1146                         m_clip -= m_old_clip;
1147                 m_old_clip = m_clip;
1148         }
1149         else
1150                 m_old_clip = m_clip = gRegion::invalidRegion();
1151 }
1152
1153 void eListboxPythonMultiContent::entryRemoved(int idx)
1154 {
1155         if (m_listbox)
1156                 m_listbox->entryRemoved(idx);
1157 }
1158
1159 void eListboxPythonMultiContent::setTemplate(ePyObject tmplate)
1160 {
1161         m_template = tmplate;
1162 }