GLWListView.h

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////////////////////////////////////////////////////////////////////////////////
//    Scorched3D (c) 2000-2009
//
//    This file is part of Scorched3D.
//
//    Scorched3D 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.
//
//    Scorched3D 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 Scorched3D; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
////////////////////////////////////////////////////////////////////////////////


#if !defined(__INCLUDE_GLWListViewh_INCLUDE__)
#define __INCLUDE_GLWListViewh_INCLUDE__

#include <GLW/GLWidget.h>
#include <GLW/GLWScrollW.h>
#include <XML/XMLNode.h>
#include <common/Vector.h>
#include <vector>
#include <string>
#include <map>

class GLWListViewI
{
public:
        virtual void url(const char *url) = 0;
        virtual void event(std::map<std::string, std::string> &event) = 0;
};

class GLWListView :
        public GLWidget
{
public:
        GLWListView(float x = 0.0f, float y = 0.0f, 
                float w = 0.0f, float h = 0.0f, 
                int maxLen = -1, float textSize = 10.0f,
                float scrollSpeed = 0.0f);
        virtual ~GLWListView();

        void setHandler(GLWListViewI *handler) { handler_ = handler; }
        void setColor(Vector &color) { color_ = color; }

        bool addXML(XMLNode *node);
        void addLine(const std::string &text);
        void clear();
        void resetPosition();
        void endPosition();

        virtual void draw();
        virtual void simulate(float frameTime);
        virtual void mouseDown(int button, float x, float y, bool &skipRest);
        virtual void mouseUp(int button, float x, float y, bool &skipRest);
        virtual void mouseDrag(int button, float mx, float my, float x, float y, bool &skipRest);
        virtual void mouseWheel(float x, float y, float z, bool &skipRest);

        virtual void setX(float x) { x_ = x; scroll_.setX(x_ + w_ - 17); }
        virtual void setY(float y) { y_ = y; scroll_.setY(y_); }
        virtual void setW(float w) { w_ = w; scroll_.setX(x_ + w_ - 17); }
        virtual void setH(float h) { h_ = h; scroll_.setH(h_ - 1); }

        REGISTER_CLASS_HEADER(GLWListView);

protected:
        struct WordEntry
        {
                WordEntry(const char *word, Vector &color) : 
                        word_(word), color_(color), wordRef_(0) { }

                unsigned wordRef_;
                static unsigned wordRefCount_;

                Vector color_;
                std::string href_;
                std::string word_;
                std::map<std::string, std::string> event_;
        };
        struct LineEntry
        {
                std::vector<WordEntry> words_;
        };
        struct UrlEntry
        {
                float x_, y_;
                float w_, h_;
                WordEntry *entry_;
        };

        GLWListViewI *handler_;
        float currentPosition_;
        float scrollSpeed_;
        float textSize_;
        int maxLen_;
        Vector color_;
        GLWScrollW scroll_;
        std::vector<LineEntry> lines_;
        std::vector<UrlEntry> urls_;

        void setScroll();
        bool addWordEntry(std::list<WordEntry> &words, 
                std::string &word, XMLNode *parentNode);
        bool getLines(std::list<WordEntry> &words, float &lineLen);
        bool getWords(XMLNode *node, std::list<WordEntry> &words);
        void drawUrl(WordEntry &entry, int drawChars, float x, float y);
};

#endif

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