getPageLinks implementation for crengine formats

cre.cpp

@@ -390,6 +390,72 @@ static int cursorRight(lua_State *L) {
 	return 0;
 }
 
+static int getPageLinks(lua_State *L) {
+	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
+
+	lua_newtable(L); // all links
+
+	int pos = doc->text_view->GetPos();
+
+	printf("## pos=%d\n", pos);
+
+	ldomXRangeList links;
+	ldomXRangeList & sel = doc->text_view->getDocument()->getSelections();
+	doc->text_view->getCurrentPageLinks( links );
+	int linkCount = links.length();
+	if ( linkCount ) {
+		sel.clear();
+		for ( int i=0; i<linkCount; i++ ) {
+			sel.add( new ldomXRange(*links[i]) );
+
+			lString16 txt = links[i]->getRangeText();
+			lString8 txt8 = UnicodeToLocal( txt );
+
+			lString16 link = links[i]->getHRef();
+			lString8 link8 = UnicodeToLocal( link );
+
+			ldomXRange currSel;
+			currSel = *links[i];
+
+			lvPoint start_pt ( currSel.getStart().toPoint() );
+			lvPoint end_pt ( currSel.getEnd().toPoint() );
+
+			printf("# link %d start %d %d end %d %d '%s' %s\n", i,
+				start_pt.x, start_pt.y, end_pt.x, end_pt.y,
+				txt8.c_str(), link8.c_str()
+			);
+
+			lua_newtable(L); // new link
+
+			lua_pushstring(L, "start_x");
+			lua_pushinteger(L, start_pt.x);
+			lua_settable(L, -3);
+			lua_pushstring(L, "start_y");
+			lua_pushinteger(L, start_pt.y);
+			lua_settable(L, -3);
+			lua_pushstring(L, "end_x");
+			lua_pushinteger(L, end_pt.x);
+			lua_settable(L, -3);
+			lua_pushstring(L, "end_y");
+			lua_pushinteger(L, end_pt.y);
+			lua_settable(L, -3);
+
+			const char * link_to = link8.c_str();
+
+			lua_pushstring(L, "section");
+			lua_pushstring(L, link_to);
+			lua_settable(L, -3);
+
+			lua_rawseti(L, -2, i + 1);
+
+		}
+		doc->text_view->updateSelections();
+	}
+
+	return 1;
+}
+
+
 static int drawCurrentPage(lua_State *L) {
 	CreDocument *doc = (CreDocument*) luaL_checkudata(L, 1, "credocument");
 	DrawContext *dc = (DrawContext*) luaL_checkudata(L, 2, "drawcontext");
@@ -536,6 +602,7 @@ static const struct luaL_Reg credocument_meth[] = {
 	//{"cursorRight", cursorRight},
 	{"drawCurrentPage", drawCurrentPage},
 	{"findText", findText},
+	{"getPageLinks", getPageLinks},
 	{"close", closeDocument},
 	{"__gc", closeDocument},
 	{NULL, NULL}

crereader.lua

@@ -680,6 +680,12 @@ function CREReader:adjustCreReaderCommands()
 	)
 end
 
+function CREReader:getPageLinks()
+	local links = self.doc:getPageLinks()
+	Debug("getPageLinks", links)
+	return links
+end
+
 ----------------------------------------------------
 --- search
 ----------------------------------------------------

unireader.lua

@@ -2993,13 +2993,24 @@ function UniReader:addAllCommands()
 			if links == nil or next(links) == nil then
 				InfoMessage:inform("No links on this page ", 2000, 1, MSG_WARN)
 			else
+				local font_size
+
+				if links[1].y0 then
+					Debug("using link box from mupdf for font size")
+					font_size = math.ceil( (links[1].y1 - links[1].y0 - 2) * unireader.globalzoom )
+				else
+					Debug("using font size from crengine for font size")
+					font_size = self.font_zoom
+				end
+
+				Debug("font_size",font_size)
 				Debug("shortcuts",SelectMenu.item_shortcuts)
 
 				local page_links = 0
 				local visible_links = {}
 
 				for i, link in ipairs(links) do
-					if link.page then
+					if link.page then -- from mupdf
 						local x,y,w,h = self:zoomedRectCoordTransform( link.x0,link.y0, link.x1,link.y1 )
 						if x > 0 and y > 0 and x < G_width and y < G_height then
 							-- draw top and side borders so we get a box for each link (bottom one is on page)
@@ -3012,6 +3023,10 @@ function UniReader:addAllCommands()
 							page_links = page_links + 1
 							visible_links[page_links] = link
 						end
+					elseif link.section then -- from crengine
+--						fb.bb:invertRect(link.x0,link.y0,link.x1 - link.x0, link.y1-link.y0)
+						page_links = page_links + 1
+						visible_links[page_links] = link
 					end
 				end
 
@@ -3020,6 +3035,8 @@ function UniReader:addAllCommands()
 					return
 				end
 
+				Debug("visible_links", visible_links)
+
 				Screen:saveCurrentBB() -- save dimmed links
 
 				local shortcut_offset = 0
@@ -3035,10 +3052,19 @@ function UniReader:addAllCommands()
 						local link = visible_links[ i + shortcut_offset ]
 						if link == nil then break end
 						Debug("link", i, shortcut_offset, link)
+						local x,y,w,h
 						if link.page then
-							local x,y,w,h = self:zoomedRectCoordTransform( link.x0,link.y0, link.x1,link.y1 )
+							x,y,w,h = self:zoomedRectCoordTransform( link.x0,link.y0, link.x1,link.y1 )
+						elseif link.section then
+							x,y,w,h = link.start_x, link.start_y, 10, 10
+						end
+
+Debug("link coords",x,y,w,h)
+
+						if x and y and w and h then
+							Debug("shortcut", x,y, SelectMenu.item_shortcuts[shortcut_nr])
 							local face = Font:getFace("rifont", h)
-							renderUtf8Text(fb.bb, x, y + h - 2, face, SelectMenu.item_shortcuts[shortcut_nr])
+							renderUtf8Text(fb.bb, x, y + font_size - 1, face, SelectMenu.item_shortcuts[shortcut_nr])
 							shortcut_map[shortcut_nr] = i + shortcut_offset
 							shortcut_nr = shortcut_nr + 1
 						end