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add: TOC support

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Qingping Hou
2012-03-29 17:49:59 +08:00
parent e97cfb91e7
commit 178e6597e2
1 changed files with 61 additions and 1 deletions
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62
cre.cpp
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@@ -110,6 +110,66 @@ static int getFullHeight(lua_State *L) {
return 1;
}
/*
* helper function for getTableOfContent()
*/
static int walkTableOfContent(lua_State *L, LVTocItem *toc, int *count) {
LVTocItem *toc_tmp = NULL;
int i = 0,
nr_child = toc->getChildCount();
for(i = 0; i < nr_child; i++) {
toc_tmp = toc->getChild(i);
lua_pushnumber(L, (*count)++);
/* set subtable, Toc entry */
lua_newtable(L);
lua_pushstring(L, "page");
lua_pushnumber(L, toc_tmp->getY());
lua_settable(L, -3);
lua_pushstring(L, "depth");
lua_pushnumber(L, toc_tmp->getLevel());
lua_settable(L, -3);
lua_pushstring(L, "title");
lua_pushstring(L, UnicodeToLocal(toc_tmp->getName()).c_str());
lua_settable(L, -3);
/* set Toc entry to Toc table */
lua_settable(L, -3);
if (toc_tmp->getChildCount() > 0) {
walkTableOfContent(L, toc_tmp, count);
}
}
return 0;
}
/*
* Return a table like this:
* {
* {page=12, depth=1, title="chapter1"},
* {page=54, depth=1, title="chapter2"},
* }
*
* Warnning: not like pdf or djvu support, page here refers to the
* position(height) within the document, not the real page number.
*
*/
static int getTableOfContent(lua_State *L) {
CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
LVTocItem * toc = doc->text_view->getToc();
int count = 0;
lua_newtable(L);
walkTableOfContent(L, toc, &count);
return 1;
}
static int drawCurrentPage(lua_State *L) {
CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
DrawContext *dc = (DrawContext*) luaL_checkudata(L, 2, "drawcontext");
@@ -153,10 +213,10 @@ static const struct luaL_Reg credocument_meth[] = {
{"getCurrentPage", getCurrentPage},
{"getPos", getPos},
{"GetFullHeight", getFullHeight},
{"getTOC", getTableOfContent},
{"gotoPos", gotoPos},
{"gotoPage", gotoPage},
{"drawCurrentPage", drawCurrentPage},
//{"getTOC", getTableOfContent},
{"close", closeDocument},
{"__gc", closeDocument},
{NULL, NULL}