root/libcore/StaticText.h

INCLUDED FROM

// StaticText.h:  StaticText DisplayObject implementation for Gnash.
// 
//   Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010,
//   2011 Free Software Foundation, Inc
// 
// 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 3 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 St, Fifth Floor, Boston, MA  02110-1301  USA

#ifndef GNASH_STATIC_TEXT_H
#define GNASH_STATIC_TEXT_H

#include "smart_ptr.h" 
#include "DisplayObject.h" // for inheritance
#include "swf/DefineTextTag.h"

#include <vector>
#include <boost/dynamic_bitset.hpp>
#include <boost/intrusive_ptr.hpp>
#include <cassert>

// Forward declarations
namespace gnash {
    namespace SWF {
        class TextRecord;
    }
}

namespace gnash {

/// Static text fields, SWF-defined with read-only text.
//
/// StaticText objects hold mutable selection and color information.
class StaticText : public DisplayObject
{
public:

        StaticText(movie_root& mr, as_object* object, const SWF::DefineTextTag* def,
            DisplayObject* parent)
                :
        DisplayObject(mr, object, parent),
        _def(def),
        _selectionColor(0, 255, 255, 255)
        {
        assert(_def);
        }

    /// Return a pointer to this if our definition contains any static text.
    //
    /// This is non-const because a TextSnapshot needs to add selection and
    /// color information to this StaticText. It also resets selection.
    //
    /// @param to       A vector of pointers to TextRecords containing text.
    /// @param numChars The total number of DisplayObjects in all TextRecords is
    ///                 written to this variable.
    /// Note: This function always removes any existing selection and resizes
    /// the bitset to the number of DisplayObjects in all TextRecords.
    virtual StaticText* getStaticText(std::vector<const SWF::TextRecord*>& to,
            size_t& numChars);

        virtual void display(Renderer& renderer, const Transform& xform);

    void setSelected(size_t pos, bool selected) {
        _selectedText.set(pos, selected);
    }

    /// Return a bitset showing which DisplayObjects (by index) are selected.
    //
    /// Note: mutable information is meaningless until the StaticText is
    /// queried with getStaticText(). This is because under normal
    /// circumstances there is no need for it.
    /// Note also: the size() member of boost::dynamic_bitset returns 0 before
    /// getStaticText() is called; afterwards it is equivalent to the
    /// number of DisplayObjects in the StaticText's definition.
    const boost::dynamic_bitset<>& getSelected() const {
        return _selectedText;
    }

    void setSelectionColor(boost::uint32_t color);

    virtual SWFRect getBounds() const {
        return _def->bounds();
    }

    virtual bool pointInShape(boost::int32_t x, boost::int32_t y) const;

    const rgba& selectionColor() const {
        return _selectionColor;
    }

private:

    const boost::intrusive_ptr<const SWF::DefineTextTag> _def;

    /// A bitmask indicating which static text DisplayObjects are selected
    //
    /// This is only present for static text fields, and only after
    /// a TextSnapshot has queried the DisplayObject for text.
    boost::dynamic_bitset<> _selectedText;

    /// The color of the background for selected DisplayObjects.
    //
    /// This is alawys opaque.
    rgba _selectionColor;

};


}       // end namespace gnash


#endif 


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