articleviewer.h

/*
    This file is part of Akregator.
 
    Copyright (C) 2004 Sashmit Bhaduri <smt@vfemail.net>
                  2005 Frank Osterfeld <frank.osterfeld at kdemail.net>
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 
    As a special exception, permission is given to link this program
    with any edition of TQt, and distribute the resulting executable,
    without including the source code for TQt in the source distribution.
*/
 
#ifndef ARTICLEVIEWER_H
#define ARTICLEVIEWER_H
 
#include <tdelocale.h>
 
#include <tqcolor.h>
#include <tqfont.h>
 
#include "article.h"
#include "articlefilter.h"
#include "viewer.h"
 
class TQKeyEvent;
 
namespace Akregator
{
    class Feed;
    class Folder;
    class TreeNode;
    
     class ArticleViewer : public Viewer
    {
        TQ_OBJECT
  
        public:
            ArticleViewer(TQWidget* parent, const char* name);
            virtual ~ArticleViewer();
            
            virtual bool openURL(const KURL &url);
 
            void reload();
 
            void displayAboutPage();
            
            public slots:
        
            // Commandment: We are your interfaces.
            // You shall not use strange interfaces before us.
        
            void slotShowArticle(const Article& article);
            
            void slotShowNode(TreeNode* node);
            
            void slotSetFilter(const Akregator::Filters::ArticleMatcher& textFilter, const Akregator::Filters::ArticleMatcher& statusFilter);
            
            void slotUpdateCombinedView();
            
            void slotClear();
        
            void slotShowSummary(TreeNode *node);
 
            virtual void slotPaletteOrFontChanged();
            
        protected slots:
                    
            void slotArticlesUpdated(TreeNode* node, const TQValueList<Article>& list);
            void slotArticlesAdded(TreeNode* node, const TQValueList<Article>& list);
            void slotArticlesRemoved(TreeNode* node, const TQValueList<Article>& list);
            
        protected:
            
            virtual void keyPressEvent(TQKeyEvent* e);
            virtual void urlSelected (const TQString &url, int button, int state, const TQString &_target, KParts::URLArgs args);
 
        public:     // compat with KDE-3.x assertions, remove for KDE 4
    // private:
 
            friend class ShowNodeSummaryVisitor;
            class ShowSummaryVisitor;
            ShowSummaryVisitor* m_showSummaryVisitor;
            
            void renderContent(const TQString& body);
            
            TQString formatArticleNormalMode(Feed* feed, const Article& article);
            
            TQString formatArticleCombinedMode(Feed* feed, const Article& article);
            
            void beginWriting();
 
            void endWriting();
            
            void generateNormalModeCSS();
            void generateCombinedModeCSS();
            void connectToNode(TreeNode* node);
            void disconnectFromNode(TreeNode* node);
                                  
            TQString m_normalModeCSS;
            TQString m_combinedModeCSS;
            TQString m_htmlFooter;
            TQString m_currentText;
            KURL m_imageDir;
            TreeNode* m_node;
            Article m_article;
            KURL m_link;
            Akregator::Filters::ArticleMatcher m_textFilter; 
            Akregator::Filters::ArticleMatcher m_statusFilter;
            enum ViewMode { NormalView, CombinedView, SummaryView };
            ViewMode m_viewMode;
   };
}
 
#endif // ARTICLEVIEWER_H