ipdf-svn/src/DisplayList.cpp Source File

00001 /* 
00002  * Copyright (C) 2006, iRex Technologies B.V.
00003  *
00004  * This program is free software; you can redistribute it and/or modify
00005  * it under the terms of the GNU General Public License as published by
00006  * the Free Software Foundation; either version 2, or (at your option)
00007  * any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software
00016  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  */
00018  
00019 #include "DisplayList.h"
00020 #include "PDFView.h"
00021 #include "controller.h"
00022 
00023 CDisplayList::CDisplayList(void)
00024 {
00025 }
00026 
00027 CDisplayList::~CDisplayList(void)
00028 {
00029     clear();
00030 }
00031 
00032 void CDisplayList::clear()
00033 {
00034     while (displayList.getLength() > 0)
00035     {
00036         delete (TodoItem *)displayList.del(0);
00037     }
00038 }
00039 
00040 void CDisplayList::add(TodoItem * item)
00041 {
00042     displayList.append(item);
00043 }
00044 
00045 GBool CDisplayList::remove(const int pn)
00046 {
00047     TodoItem * pItem = NULL;
00048     for(int i = 0; i < displayList.getLength(); ++i)
00049     {
00050         pItem = (TodoItem *)displayList.get(i);
00051         if (pItem && pn == pItem->pageNumber)
00052         {
00053             delete pItem;
00054             displayList.del(i);
00055             return gTrue;
00056         }
00057     }
00058     return gFalse;
00059 }
00060 
00061 GBool CDisplayList::isEmpty()
00062 {
00063     return ( 0 == displayList.getLength());
00064 }
00065 
00066 void CDisplayList::issueItems(CPDFView *view)
00067 {
00068     TodoItem * pItem = NULL;
00069     for(int i = 0; i < displayList.getLength(); ++i)
00070     {
00071         pItem = (TodoItem *)displayList.get(i);
00072         if (pItem && 0 != pItem->timeStamp)
00073         {
00074             // only add items that are not in rendering
00075             view->issueItem(pItem->pageNumber);
00076         }
00077     }  
00078     view->ctrl->thread.signal();
00079 }
00080 
00081 void CDisplayList::renderItems(CPDFView *view)
00082 {
00083     TodoItem * pItem = NULL;
00084     for(int i = 1; i < displayList.getLength(); ++i)
00085     {
00086         pItem = (TodoItem *)displayList.get(i);
00087         if (pItem)
00088         {
00089             view->issueItem(pItem->pageNumber);
00090         }
00091     }
00092     pItem = (TodoItem *)displayList.get(0);
00093     TodoItem * item = new TodoItem(*pItem);
00094     view->ctrl->thread.renderPageNow(item);
00095 }