/****************************************************************************
Copyright (c) 2008, Radon Labs GmbH
Copyright (c) 2011-2013,WebJet Business Division,CYOU
 
http://www.genesis-3d.com.cn

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#pragma once
#ifndef HTTP_SVGPAGEWRITER_H
#define HTTP_SVGPAGEWRITER_H
//------------------------------------------------------------------------------
/**
    @class Http::SvgPageWriter
    
    A stream writer to generate simple SVG pages.
    

*/
#include "io/streamwriter.h"
#include "io/xmlwriter.h"
#include "math/float2.h"

//------------------------------------------------------------------------------
namespace Http
{
class SvgPageWriter : public IO::StreamWriter
{
    __DeclareClass(SvgPageWriter);
public:
    /// constructor
    SvgPageWriter();
    /// destructor
    virtual ~SvgPageWriter();
    /// set width and height of canvas in pixels
    void SetCanvasDimensions(SizeT w, SizeT h);
    /// set width and height in draw units
    void SetUnitDimensions(SizeT w, SizeT h);
    /// begin writing to the stream
    virtual bool Open();
    /// end writing to the stream
    virtual void Close();

    /// write content text
    void WriteContent(const Util::String& text);
    /// begin a new node under the current node
    void BeginNode(const Util::String& nodeName);
    /// end current node, set current node to parent
    void EndNode();
    /// set string attribute on current node
    void SetString(const Util::String& name, const Util::String& value);

    /// begin a transformation group
    void BeginTransformGroup(const Math::float2& translate, float rotate, const Math::float2& scale);
    /// begin a paint group
    void BeginPaintGroup(const Util::String& fillColor, const Util::String& strokeColor, int strokeWidth);
    /// begin a text group
    void BeginTextGroup(int fontSize, const Util::String& textColor);
    /// end the most recent group
    void EndGroup();

    /// draw a rectangle, all units are in pixels
    void Rect(float x, float y, float w, float h);
    /// draw a circle, all units are in pixels
    void Circle(float x, float y, float r);
    /// draw an ellipse, all units are in pixels
    void Ellipse(float x, float y, float rx, float ry);
    /// draw a line, all units are in pixels
    void Line(float x1, float y1, float x2, float y2);
    /// draw a poly-line, all units are in pixels
    void PolyLine(const Util::Array<Math::float2>& points);
    /// draw a polygon, all units are in pixels
    void Polygon(const Util::Array<Math::float2>& points);
    /// draw text, all units are in pixels
    void Text(float x, float y, const Util::String& text);

protected:
    GPtr<IO::XmlWriter> xmlWriter;
    SizeT canvasWidth;
    SizeT canvasHeight;
    SizeT unitWidth;
    SizeT unitHeight;
};

//------------------------------------------------------------------------------
/**
*/
inline void
SvgPageWriter::SetCanvasDimensions(SizeT w, SizeT h)
{
    this->canvasWidth = w;
    this->canvasHeight = h;
}

//------------------------------------------------------------------------------
/**
*/
inline void
SvgPageWriter::SetUnitDimensions(SizeT w, SizeT h)
{
    this->unitWidth = w;
    this->unitHeight = h;
}

} // namespace Http
//------------------------------------------------------------------------------
#endif