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/// @author Alex Zolotarev
#pragma once
#include "resource_style.hpp"
#include "../geometry/rect2d.hpp"
#include "../base/base.hpp"
#include "../std/string.hpp"
#include "../coding/strutil.hpp"
#include "../base/start_mem_debug.hpp"
/// @example
/// <font>
/// <chars count="256">
/// <char id="1024" x="341" y="0" width="7" height="13" xoffset="1" yoffset="0" xadvance="9" page="0" chnl="15" />
/// ...
/// </chars>
/// </font>
/// <skin>
/// <chars count="55">
/// <char id="666" x="341" y="0" width="7" height="13" />
/// ...
/// </chars>
/// </skin>
namespace yg
{
/// used to parse xml skin description file in BMFont app out format
template<class TSkinInserter, class TFontInserter>
class SkinXmlParser
{
private:
enum TMode
{
EModeUnknown,
EModeSkin,
EModeFont
};
TMode m_mode;
bool m_ready;
uint16_t m_x;
uint16_t m_y;
uint16_t m_width;
uint16_t m_height;
int8_t m_xOffset;
int8_t m_yOffset;
int8_t m_xAdvance;
int m_id;
/// How many pixels from top left to baseline (down)
int m_baseline;
/// width of the font texture
int m_scaleW;
/// height of the font texture
int m_scaleH;
TSkinInserter m_skinInserter;
TFontInserter m_fontInserter;
public:
SkinXmlParser(TSkinInserter skinInserter, TFontInserter fontInserter)
: m_mode(EModeUnknown), m_ready(false), m_baseline(0), m_scaleW(0), m_scaleH(0),
m_skinInserter(skinInserter), m_fontInserter(fontInserter)
{}
int FontTextureWidth() const { return m_scaleW; }
int FontTextureHeight() const { return m_scaleH; }
int BaseLineOffset() const { return m_baseline; }
bool Push(string const & element)
{
if (m_mode == EModeUnknown)
{
if (element == "skin")
m_mode = EModeSkin;
else if (element == "font")
m_mode = EModeFont;
}
else if (element == "char")
m_ready = true;
return true;
}
void AddAttr(string const & attribute, string const & value)
{
if (m_ready)
{
if (attribute == "id")
m_id = StrToInt(value);
else if (attribute == "x")
m_x = static_cast<uint16_t>(StrToInt(value));
else if (attribute == "y")
m_y = static_cast<uint16_t>(StrToInt(value));
else if (attribute == "width")
m_width = static_cast<uint16_t>(StrToInt(value));
else if (attribute == "height")
m_height = static_cast<uint16_t>(StrToInt(value));
else if (attribute == "xoffset")
m_xOffset = static_cast<int8_t>(StrToInt(value));
else if (attribute == "yoffset")
m_yOffset = static_cast<int8_t>(StrToInt(value));
else if (attribute == "xadvance")
m_xAdvance = static_cast<int8_t>(StrToInt(value));
}
else
{
if (attribute == "base")
m_baseline = StrToInt(value);
else if (attribute == "scaleW")
m_scaleW = StrToInt(value);
else if (attribute == "scaleH")
m_scaleH = StrToInt(value);
}
}
void Pop(string const & element)
{
if (m_ready)
{
switch (m_mode)
{
case EModeSkin:
m_skinInserter =
make_pair(m_id, shared_ptr<ResourceStyle>(new ResourceStyle(m2::RectU(m_x, m_y, m_x + m_width, m_y + m_height))));
break;
case EModeFont:
m_fontInserter =
make_pair(m_id, shared_ptr<FontStyle>(new FontStyle(m2::RectU(m_x, m_y, m_x + m_width, m_y + m_height),
m_xOffset, m_baseline - m_yOffset - m_height, m_xAdvance)));
break;
default:
break;
}
m_ready = false;
}
else if (element == "skin" || element == "font")
m_mode = EModeUnknown;
}
};
}
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