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(svn r16226) -Codechange: Separating generation of a widget array from WindowDesc to the InitializeWidgetArrayFromNestedWidgets function.

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alberth
2009-05-04 18:40:37 +00:00
parent d953f3e4c7
commit efde51e452
3 changed files with 44 additions and 21 deletions
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40
src/widget.cpp
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@@ -1724,3 +1724,43 @@ NWidgetContainer *MakeNWidgets(const NWidgetPart *parts, int count)
MakeWidgetTree(parts, count, cont);
return cont;
}
/**
* Construct a #Widget array from a nested widget parts array, taking care of all the steps and checks.
* Also cache the result and use the cache if possible.
* @param[in] parts Array with parts of the widgets.
* @param parts_length Length of the \a parts array.
* @param[in] orig_wid Pointer to original widget array.
* @param wid_cache Pointer to the cache for storing the generated widget array (use \c NULL to prevent caching).
* @return Cached value if available, otherwise the generated widget array. If \a wid_cache is \c NULL, the caller should free the returned array.
*
* @pre Before the first call, \c *wid_cache should be \c NULL.
* @post The widget array stored in the \c *wid_cache should be free-ed by the caller.
*/
const Widget *InitializeWidgetArrayFromNestedWidgets(const NWidgetPart *parts, int parts_length, const Widget *orig_wid, Widget **wid_cache)
{
const bool rtl = false; // Direction of the language is left-to-right
if (wid_cache != NULL && *wid_cache != NULL) return *wid_cache;
assert(parts != NULL && parts_length > 0);
NWidgetContainer *nwid = MakeNWidgets(parts, parts_length);
Widget *gen_wid = InitializeNWidgets(nwid, rtl);
if (!rtl && orig_wid) {
/* There are two descriptions, compare them.
* Comparing only makes sense when using a left-to-right language.
*/
bool ok = CompareWidgetArrays(orig_wid, gen_wid, false);
if (ok) {
DEBUG(misc, 1, "Nested widgets are equal, min-size(%u, %u)", nwid->min_x, nwid->min_y);
} else {
DEBUG(misc, 0, "Nested widgets give different results");
CompareWidgetArrays(orig_wid, gen_wid, true);
}
}
delete nwid;
if (wid_cache != NULL) *wid_cache = gen_wid;
return gen_wid;
}