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 /* now, handle the value. get 2nd part from tuple*/
435 value = PyTuple_GET_ITEM(item, 1);
438 PyObject *args = PyTuple_New(1);
439 PyTuple_SET_ITEM(args, 0, PyInt_FromLong(selected));
441 /* CallObject will call __call__ which should return the value tuple */
442 value = PyObject_CallObject(value, args);
444 if (PyErr_Occurred())
448 /* the PyInt was stolen. */
451 /* check if this is really a tuple */
452 if (value && PyTuple_Check(value))
454 /* convert type to string */
455 PyObject *type = PyTuple_GET_ITEM(value, 0);
456 const char *atype = (type && PyString_Check(type)) ? PyString_AsString(type) : 0;
460 if (!strcmp(atype, "text"))
462 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
463 const char *value = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
464 painter.setFont(fnt2);
465 painter.renderText(eRect(offset + eSize(m_seperation, 0), item_right), value, gPainter::RT_HALIGN_RIGHT);
467 /* pvalue is borrowed */
468 } else if (!strcmp(atype, "slider"))
470 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
472 /* convert value to Long. fallback to -1 on error. */
473 int value = (pvalue && PyInt_Check(pvalue)) ? PyInt_AsLong(pvalue) : -1;
475 /* calc. slider length */
476 int width = item_right.width() * value / 100;
477 int height = item_right.height();
481 //painter.fill(eRect(offset.x() + m_seperation, offset.y(), width, height));
482 //hack - make it customizable
483 painter.fill(eRect(offset.x() + m_seperation, offset.y() + 5, width, height-10));
485 /* pvalue is borrowed */
486 } else if (!strcmp(atype, "mtext"))
488 PyObject *pvalue = PyTuple_GET_ITEM(value, 1);
489 const char *text = (pvalue && PyString_Check(pvalue)) ? PyString_AsString(pvalue) : "<not-a-string>";
491 ePtr<eTextPara> para = new eTextPara(eRect(offset + eSize(m_seperation, 0), item_right));
493 para->renderString(text, 0);
494 para->realign(eTextPara::dirRight);
495 int glyphs = para->size();
499 if (PyTuple_Size(value) >= 3)
500 plist = PyTuple_GET_ITEM(value, 2);
504 if (plist && PyList_Check(plist))
505 entries = PyList_Size(plist);
507 for (int i = 0; i < entries; ++i)
509 PyObject *entry = PyList_GET_ITEM(plist, i);
510 int num = PyInt_Check(entry) ? PyInt_AsLong(entry) : -1;
512 if ((num < 0) || (num >= glyphs))
513 eWarning("glyph index %d in PythonConfigList out of bounds!");
516 para->setGlyphFlag(num, GS_INVERT);
518 bbox = para->getGlyphBBox(num);
519 bbox = eRect(bbox.left(), offset.y(), bbox.width(), m_itemsize.height());
522 /* entry is borrowed */
525 painter.renderPara(para, ePoint(0, 0));
526 /* pvalue is borrowed */
527 /* plist is 0 or borrowed */
530 /* type is borrowed */
532 eWarning("eListboxPythonConfigContent: second value of tuple is not a tuple.");
533 /* value is borrowed */
537 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
543 //////////////////////////////////////
545 /* todo: make a real infrastructure here! */
546 RESULT SwigFromPython(ePtr<gPixmap> &res, PyObject *obj);
548 void eListboxPythonMultiContent::paint(gPainter &painter, eWindowStyle &style, const ePoint &offset, int selected)
550 eRect itemrect(offset, m_itemsize);
551 painter.clip(itemrect);
552 style.setStyle(painter, selected ? eWindowStyle::styleListboxSelected : eWindowStyle::styleListboxNormal);
555 if (m_list && cursorValid())
557 PyObject *items = PyList_GET_ITEM(m_list, m_cursor); // borrowed reference!
561 eDebug("eListboxPythonMultiContent: error getting item %d", m_cursor);
565 if (!PyList_Check(items))
567 eDebug("eListboxPythonMultiContent: list entry %d is not a list", m_cursor);
571 int size = PyList_Size(items);
572 for (int i = 1; i < size; ++i)
574 PyObject *item = PyList_GET_ITEM(items, i); // borrowed reference!
578 eDebug("eListboxPythonMultiContent: ?");
582 PyObject *px = 0, *py = 0, *pwidth = 0, *pheight = 0, *pfnt = 0, *pstring = 0, *pflags = 0;
585 we have a list of tuples:
587 (0, x, y, width, height, fnt, flags, "bla" ),
590 (1, x, y, width, height, filled_percent )
594 (2, x, y, width, height, pixmap )
598 if (!PyTuple_Check(item))
600 eDebug("eListboxPythonMultiContent did not receive a tuple.");
604 int size = PyTuple_Size(item);
608 eDebug("eListboxPythonMultiContent receive empty tuple.");
612 int type = PyInt_AsLong(PyTuple_GET_ITEM(item, 0));
616 px = PyTuple_GET_ITEM(item, 1);
617 py = PyTuple_GET_ITEM(item, 2);
618 pwidth = PyTuple_GET_ITEM(item, 3);
619 pheight = PyTuple_GET_ITEM(item, 4);
620 pfnt = PyTuple_GET_ITEM(item, 5); /* could also be an pixmap or an int (progress filled percent) */
623 pflags = PyTuple_GET_ITEM(item, 6);
624 pstring = PyTuple_GET_ITEM(item, 7);
630 case TYPE_TEXT: // text
632 if (!(px && py && pwidth && pheight && pfnt && pstring))
634 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_TEXT, x, y, width, height, fnt, flags, string[, ...])");
638 const char *string = (PyString_Check(pstring)) ? PyString_AsString(pstring) : "<not-a-string>";
639 int x = PyInt_AsLong(px);
640 int y = PyInt_AsLong(py);
641 int width = PyInt_AsLong(pwidth);
642 int height = PyInt_AsLong(pheight);
643 int flags = PyInt_AsLong(pflags);
644 int fnt = PyInt_AsLong(pfnt);
646 if (m_font.find(fnt) == m_font.end())
648 eDebug("eListboxPythonMultiContent: specified font %d was not found!", fnt);
652 eRect r = eRect(x, y, width, height);
656 painter.setFont(m_font[fnt]);
659 painter.renderText(r, string, flags);
663 case TYPE_PROGRESS: // Progress
665 if (!(px && py && pwidth && pheight && pfnt))
667 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PROGRESS, x, y, width, height, filled percent))");
670 int x = PyInt_AsLong(px);
671 int y = PyInt_AsLong(py);
672 int width = PyInt_AsLong(pwidth);
673 int height = PyInt_AsLong(pheight);
674 int filled = PyInt_AsLong(pfnt);
676 eRect r = eRect(x, y, width, height);
681 int bwidth=2; // borderwidth hardcoded yet
684 eRect rc = eRect(x, y, width, bwidth);
688 rc = eRect(x, y+bwidth, bwidth, height-bwidth);
692 rc = eRect(x+bwidth, y+height-bwidth, width-bwidth, bwidth);
696 rc = eRect(x+width-bwidth, y+bwidth, bwidth, height-bwidth);
701 rc = eRect(x+bwidth, y+bwidth, (width-bwidth*2) * filled / 100, height-bwidth*2);
709 case TYPE_PIXMAP: // pixmap
711 if (!(px && py && pwidth && pheight && pfnt))
713 eDebug("eListboxPythonMultiContent received too small tuple (must be (TYPE_PIXMAP, x, y, width, height, pixmap))");
716 int x = PyInt_AsLong(px);
717 int y = PyInt_AsLong(py);
718 int width = PyInt_AsLong(pwidth);
719 int height = PyInt_AsLong(pheight);
720 ePtr<gPixmap> pixmap;
721 if (SwigFromPython(pixmap, pfnt))
723 eDebug("eListboxPythonMultiContent (Pixmap) get pixmap failed");
727 eRect r = eRect(x, y, width, height);
732 painter.blit(pixmap, r.topLeft(), r);
738 eWarning("eListboxPythonMultiContent received unknown type (%d)", type);
745 style.drawFrame(painter, eRect(offset, m_itemsize), eWindowStyle::frameListboxEntry);
751 void eListboxPythonMultiContent::setFont(int fnt, gFont *font)