1 #include <lib/gui/elistbox.h>
2 #include <lib/gui/elistboxcontent.h>
3 #include <lib/gdi/font.h>
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
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.
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.
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.
25 Although cursorSet is provided, it should be only used when there is no
26 other way, as it involves iterating trough the list.
29 iListboxContent::~iListboxContent()
33 iListboxContent::iListboxContent(): m_listbox(0)
37 void iListboxContent::setListbox(eListbox *lb)
42 DEFINE_REF(eListboxTestContent);
44 void eListboxTestContent::cursorHome()
49 void eListboxTestContent::cursorEnd()
54 int eListboxTestContent::cursorMove(int count)
60 else if (m_cursor > size())
65 int eListboxTestContent::cursorValid()
67 return m_cursor < size();
70 int eListboxTestContent::cursorSet(int n)
76 else if (m_cursor > size())
81 int eListboxTestContent::cursorGet()
86 void eListboxTestContent::cursorSave()
88 m_saved_cursor = m_cursor;
91 void eListboxTestContent::cursorRestore()
93 m_cursor = m_saved_cursor;
96 int eListboxTestContent::size()
101 RESULT eListboxTestContent::connectItemChanged(const Slot0<void> &itemChanged, ePtr<eConnection> &connection)
106 void eListboxTestContent::setSize(const eSize &size)
111 void eListboxTestContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
113 ePtr<gFont> fnt = new gFont("Regular", 20);
114 painter.clip(eRect(offset, m_size));
115 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
120 painter.setFont(fnt);
122 sprintf(string, "%d.)", m_cursor);
124 ePoint text_offset = offset + (selected ? ePoint(2, 2) : ePoint(1, 1));
126 painter.renderText(eRect(text_offset, m_size), string);
129 style.drawFrame(painter, eRect(offset, m_size), eWindowStyle::frameListboxEntry);
135 //////////////////////////////////////
137 DEFINE_REF(eListboxStringContent);
139 eListboxStringContent::eListboxStringContent()
145 void eListboxStringContent::cursorHome()
147 m_cursor = m_list.begin();
151 void eListboxStringContent::cursorEnd()
153 m_cursor = m_list.end();
154 m_cursor_number = m_size;
157 int eListboxStringContent::cursorMove(int count)
161 while (count && (m_cursor != m_list.end()))
167 } else if (count < 0)
169 while (count && (m_cursor != m_list.begin()))
180 int eListboxStringContent::cursorValid()
182 return m_cursor != m_list.end();
185 int eListboxStringContent::cursorSet(int n)
193 int eListboxStringContent::cursorGet()
195 return m_cursor_number;
198 void eListboxStringContent::cursorSave()
200 m_saved_cursor = m_cursor;
201 m_saved_cursor_number = m_cursor_number;
204 void eListboxStringContent::cursorRestore()
206 m_cursor = m_saved_cursor;
207 m_cursor_number = m_saved_cursor_number;
210 int eListboxStringContent::size()
215 void eListboxStringContent::setSize(const eSize &size)
220 void eListboxStringContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
222 ePtr<gFont> fnt = new gFont("Regular", 20);
223 painter.clip(eRect(offset, m_itemsize));
224 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
227 eDebug("item %d", m_cursor_number);
230 eDebug("is valid..");
231 painter.setFont(fnt);
233 ePoint text_offset = offset + (selected ? ePoint(2, 2) : ePoint(1, 1));
235 painter.renderText(eRect(text_offset, m_itemsize), *m_cursor);
238 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
244 void eListboxStringContent::setList(std::list<std::string> &list)
247 m_size = list.size();
249 m_listbox->entryReset(false);
252 //////////////////////////////////////
254 DEFINE_REF(eListboxPythonStringContent);
256 eListboxPythonStringContent::eListboxPythonStringContent()
261 eListboxPythonStringContent::~eListboxPythonStringContent()
266 void eListboxPythonStringContent::cursorHome()
271 void eListboxPythonStringContent::cursorEnd()
276 int eListboxPythonStringContent::cursorMove(int count)
282 else if (m_cursor > size())
287 int eListboxPythonStringContent::cursorValid()
289 return m_cursor < size();
292 int eListboxPythonStringContent::cursorSet(int n)
298 else if (m_cursor > size())
303 int eListboxPythonStringContent::cursorGet()
308 void eListboxPythonStringContent::cursorSave()
310 m_saved_cursor = m_cursor;
313 void eListboxPythonStringContent::cursorRestore()
315 m_cursor = m_saved_cursor;
318 int eListboxPythonStringContent::size()
322 return PyList_Size(m_list);
325 void eListboxPythonStringContent::setSize(const eSize &size)
330 void eListboxPythonStringContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
332 ePtr<gFont> fnt = new gFont("Regular", 20);
333 painter.clip(eRect(offset, m_itemsize));
334 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
337 if (m_list && cursorValid())
339 PyObject *item = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
340 painter.setFont(fnt);
342 /* the user can supply tuples, in this case the first one will be displayed. */
343 if (PyTuple_Check(item))
344 item = PyTuple_GET_ITEM(item, 0);
346 const char *string = PyString_Check(item) ? PyString_AsString(item) : "<not-a-string>";
348 ePoint text_offset = offset + (selected ? ePoint(2, 2) : ePoint(1, 1));
350 painter.renderText(eRect(text_offset, m_itemsize), string);
353 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
359 void eListboxPythonStringContent::setList(PyObject *list)
362 if (!PyList_Check(list))
372 m_listbox->entryReset(false);
375 PyObject *eListboxPythonStringContent::getCurrentSelection()
381 PyObject *r = PyList_GET_ITEM(m_list, m_cursor);
386 void eListboxPythonStringContent::invalidateEntry(int index)
389 m_listbox->entryChanged(index);
392 void eListboxPythonStringContent::invalidate()
395 m_listbox->invalidate();
398 //////////////////////////////////////
400 void eListboxPythonConfigContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
402 ePtr<gFont> fnt = new gFont("Regular", 20);
403 ePtr<gFont> fnt2 = new gFont("Regular", 16);
404 eRect itemrect(offset, m_itemsize);
405 painter.clip(itemrect);
406 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
409 if (m_list && cursorValid())
411 /* get current list item */
412 PyObject *item = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
413 PyObject *text = 0, *value = 0;
414 painter.setFont(fnt);
416 /* the first tuple element is a string for the left side.
417 the second one will be called, and the result shall be an tuple.
420 the first one is the type (string).
421 the second one is the value. */
422 if (PyTuple_Check(item))
424 /* handle left part. get item from tuple, convert to string, display. */
426 text = PyTuple_GET_ITEM(item, 0);
427 text = PyObject_Str(text); /* creates a new object - old object was borrowed! */
428 const char *string = (text && PyString_Check(text)) ? PyString_AsString(text) : "<not-a-string>";
429 eSize item_left = eSize(m_seperation, m_itemsize.height());
430 eSize item_right = eSize(m_itemsize.width() - m_seperation, m_itemsize.height());
431 painter.renderText(eRect(offset, item_left), string, gPainter::RT_HALIGN_LEFT);
434 /* when we have no label, align value to the left. (FIXME:
435 don't we want to specifiy this individually?) */
436 int value_alignment_left = !*string;
438 /* now, handle the value. get 2nd part from tuple*/
439 value = PyTuple_GET_ITEM(item, 1);
442 PyObject *args = PyTuple_New(1);
443 PyTuple_SET_ITEM(args, 0, PyInt_FromLong(selected));
445 /* CallObject will call __call__ which should return the value tuple */
446 value = PyObject_CallObject(value, args);
448 if (PyErr_Occurred())
452 /* the PyInt was stolen. */
455 /* check if this is really a tuple */
456 if (value && PyTuple_Check(value))
458 /* convert type to string */
459 PyObject *type = PyTuple_GET_ITEM(value, 0);
460 const char *atype = (type && PyString_Check(type)) ? PyString_AsString(type) : 0;
464 if (!strcmp(atype, "text"))
466 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
467 const char *value = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
468 painter.setFont(fnt2);
469 if (value_alignment_left)
470 painter.renderText(eRect(offset, item_right), value, gPainter::RT_HALIGN_LEFT);
472 painter.renderText(eRect(offset + eSize(m_seperation, 0), item_right), value, gPainter::RT_HALIGN_RIGHT);
474 /* pvalue is borrowed */
475 } else if (!strcmp(atype, "slider"))
477 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
479 /* convert value to Long. fallback to -1 on error. */
480 int value = (pvalue && PyInt_Check(pvalue)) ? PyInt_AsLong(pvalue) : -1;
482 /* calc. slider length */
483 int width = item_right.width() * value / 100;
484 int height = item_right.height();
488 //painter.fill(eRect(offset.x() + m_seperation, offset.y(), width, height));
489 //hack - make it customizable
490 painter.fill(eRect(offset.x() + m_seperation, offset.y() + 5, width, height-10));
492 /* pvalue is borrowed */
493 } else if (!strcmp(atype, "mtext"))
495 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
496 const char *text = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
497 int xoffs = value_alignment_left ? 0 : m_seperation;
498 ePtr<eTextPara> para = new eTextPara(eRect(offset + eSize(xoffs, 0), item_right));
500 para->renderString(text, 0);
501 para->realign(value_alignment_left ? eTextPara::dirLeft : eTextPara::dirRight);
502 int glyphs = para->size();
506 if (PyTuple_Size(value) >= 3)
507 plist = PyTuple_GET_ITEM(value, 2);
511 if (plist && PyList_Check(plist))
512 entries = PyList_Size(plist);
514 for (int i = 0; i < entries; ++i)
516 PyObject *entry = PyList_GET_ITEM(plist, i);
517 int num = PyInt_Check(entry) ? PyInt_AsLong(entry) : -1;
519 if ((num < 0) || (num >= glyphs))
520 eWarning("glyph index %d in PythonConfigList out of bounds!");
523 para->setGlyphFlag(num, GS_INVERT);
525 bbox = para->getGlyphBBox(num);
526 bbox = eRect(bbox.left(), offset.y(), bbox.width(), m_itemsize.height());
529 /* entry is borrowed */
532 painter.renderPara(para, ePoint(0, 0));
533 /* pvalue is borrowed */
534 /* plist is 0 or borrowed */
537 /* type is borrowed */
539 eWarning("eListboxPythonConfigContent: second value of tuple is not a tuple.");
540 /* value is borrowed */
544 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
550 //////////////////////////////////////
552 /* todo: make a real infrastructure here! */
553 RESULT SwigFromPython(ePtr<gPixmap> &res, PyObject *obj);
555 void eListboxPythonMultiContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
557 eRect itemrect(offset, m_itemsize);
558 painter.clip(itemrect);
559 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
562 if (m_list && cursorValid())
564 PyObject *items = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
568 eDebug("eListboxPythonMultiContent: error getting item %d", m_cursor);
572 if (!PyList_Check(items))
574 eDebug("eListboxPythonMultiContent: list entry %d is not a list", m_cursor);
578 int size = PyList_Size(items);
579 for (int i = 1; i < size; ++i)
581 PyObject *item = PyList_GET_ITEM(items, i); // borrowed reference!
585 eDebug("eListboxPythonMultiContent: ?");
589 PyObject *px = 0, *py = 0, *pwidth = 0, *pheight = 0, *pfnt = 0, *pstring = 0, *pflags = 0;
592 we have a list of tuples:
594 (0, x, y, width, height, fnt, flags, "bla" ),
597 (1, x, y, width, height, filled_percent )
601 (2, x, y, width, height, pixmap )
605 if (!PyTuple_Check(item))
607 eDebug("eListboxPythonMultiContent did not receive a tuple.");
611 int size = PyTuple_Size(item);
615 eDebug("eListboxPythonMultiContent receive empty tuple.");
619 int type = PyInt_AsLong(PyTuple_GET_ITEM(item, 0));
623 px = PyTuple_GET_ITEM(item, 1);
624 py = PyTuple_GET_ITEM(item, 2);
625 pwidth = PyTuple_GET_ITEM(item, 3);
626 pheight = PyTuple_GET_ITEM(item, 4);
627 pfnt = PyTuple_GET_ITEM(item, 5); /* could also be an pixmap or an int (progress filled percent) */
630 pflags = PyTuple_GET_ITEM(item, 6);
631 pstring = PyTuple_GET_ITEM(item, 7);
637 case TYPE_TEXT: // text
639 if (!(px && py && pwidth && pheight && pfnt && pstring))
641 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_TEXT, x, y, width, height, fnt, flags, string[, ...])");
645 const char *string = (PyString_Check(pstring)) ? PyString_AsString(pstring) : "<not-a-string>";
646 int x = PyInt_AsLong(px);
647 int y = PyInt_AsLong(py);
648 int width = PyInt_AsLong(pwidth);
649 int height = PyInt_AsLong(pheight);
650 int flags = PyInt_AsLong(pflags);
651 int fnt = PyInt_AsLong(pfnt);
653 if (m_font.find(fnt) == m_font.end())
655 eDebug("eListboxPythonMultiContent: specified font %d was not found!", fnt);
659 eRect r = eRect(x, y, width, height);
663 painter.setFont(m_font[fnt]);
666 painter.renderText(r, string, flags);
670 case TYPE_PROGRESS: // Progress
672 if (!(px && py && pwidth && pheight && pfnt))
674 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PROGRESS, x, y, width, height, filled percent))");
677 int x = PyInt_AsLong(px);
678 int y = PyInt_AsLong(py);
679 int width = PyInt_AsLong(pwidth);
680 int height = PyInt_AsLong(pheight);
681 int filled = PyInt_AsLong(pfnt);
683 eRect r = eRect(x, y, width, height);
688 int bwidth=2; // borderwidth hardcoded yet
691 eRect rc = eRect(x, y, width, bwidth);
695 rc = eRect(x, y+bwidth, bwidth, height-bwidth);
699 rc = eRect(x+bwidth, y+height-bwidth, width-bwidth, bwidth);
703 rc = eRect(x+width-bwidth, y+bwidth, bwidth, height-bwidth);
708 rc = eRect(x+bwidth, y+bwidth, (width-bwidth*2) * filled / 100, height-bwidth*2);
716 case TYPE_PIXMAP: // pixmap
718 if (!(px && py && pwidth && pheight && pfnt))
720 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PIXMAP, x, y, width, height, pixmap))");
723 int x = PyInt_AsLong(px);
724 int y = PyInt_AsLong(py);
725 int width = PyInt_AsLong(pwidth);
726 int height = PyInt_AsLong(pheight);
727 ePtr<gPixmap> pixmap;
728 if (SwigFromPython(pixmap, pfnt))
730 eDebug("eListboxPythonMultiContent (Pixmap) get pixmap failed");
734 eRect r = eRect(x, y, width, height);
739 painter.blit(pixmap, r.topLeft(), r);
745 eWarning("eListboxPythonMultiContent received unknown type (%d)", type);
752 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
758 void eListboxPythonMultiContent::setFont(int fnt, gFont *font)