//----------------------------------------------------------------//
void MOAIFont::InitWithBMFont ( cc8* filename ) {
USFileStream stream;
if ( !stream.OpenRead ( filename )) return;
u32 len = stream.GetLength ();
char* buf = ( char* )malloc ( len + 1 );
stream.ReadBytes ( buf, len );
buf [ len ] = '\0';
stream.Close ();
char* p = buf;
char* endp = p + len;
MOAIGlyphSet* glyphSet = 0;
MOAIStaticGlyphCache* glyphCache = new MOAIStaticGlyphCache ();
this->mCache.Set ( *this, glyphCache );
this->mReader.Set ( *this, 0 );
p = buf;
while ( p < endp ) {
// Parse each line.
bool endl;
char* key;
char* val;
p = parseKeyVal ( p, &key, &val, &endl );
if ( strcmp ( key, "info" ) == 0 ) {
float size = 0.0f;
//info face="Cambria" size=64 bold=0 italic=0 charset="" unicode=0 stretchH=100 smooth=1 aa=1 padding=0,0,0,0 spacing=2,2
do {
p = parseKeyVal ( p, &key, &val, &endl );
if ( strcasecmp ( key, "size" ) == 0 ) { size = ( float )atof ( val ); }
} while ( !endl );
if ( size > 0.0f ) {
glyphSet = &this->AffirmGlyphSet ( size );
assert ( glyphSet );
}
}
else if ( strcmp ( key, "common" ) == 0 ) {
float lineSpacing = 0.0f;
float base = 0.0f;
u32 pages = 0;
//common lineHeight=75 base=61 scaleW=512 scaleH=512 pages=1 packed=0
do {
p = parseKeyVal ( p, &key, &val, &endl );
if ( strcasecmp ( key, "lineHeight" ) == 0 ) { lineSpacing = ( float )atof ( val ); }
else if ( strcasecmp ( key, "pages" ) == 0 ) { pages = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "base" ) == 0 ) { base = ( float )atof ( val ); }
} while ( !endl );
glyphSet->SetHeight( lineSpacing );
glyphSet->SetAscent( base );
glyphCache->ReserveTextures ( pages );
}
else if ( strcmp ( key, "page" ) == 0 ) {
STLString texturename;
u32 id = 0;
//page id=0 file="Blah.png"
do {
p = parseKeyVal ( p, &key, &val, &endl );
if( strcmp(key, "id") == 0 ) { id = ( u32 )atoi ( val ); }
else if ( strcmp ( key, "file" ) == 0 ) { texturename = val; }
} while ( !endl );
MOAITexture* texture = new MOAITexture ();
glyphCache->SetTexture ( id, texture );
texture->Init ( texturename, MOAITexture::DEFAULT_TRANSFORM );
}
else if ( strcmp ( key, "chars" ) == 0 ) {
//chars count=95
do {
p = parseKeyVal ( p, &key, &val, &endl );
} while ( !endl );
}
else if ( strcmp ( key, "char" ) == 0 ) {
//char id=47 x=2 y=2 width=32 height=63 xoffset=1 yoffset=15 xadvance=31 page=0 chnl=0 letter="/"
u32 c = 0;
u32 x = 0;
u32 y = 0;
float width = 0.0f;
float height = 0.0f;
float xoff = 0.0f;
float yoff = 0.0f;
float xadv = 0.0f;
u32 page = 0;
do {
p = parseKeyVal ( p, &key, &val, &endl );
if ( strcasecmp ( key, "id" ) == 0 ) { c = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "x" ) == 0 ) { x = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "y" ) == 0 ) { y = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "width" ) == 0 ) { width = ( float )atof ( val ); }
else if ( strcasecmp ( key, "height" ) == 0 ) { height = ( float )atof ( val ); }
else if ( strcasecmp ( key, "xoffset" ) == 0 ) { xoff = ( float )atof ( val ); }
else if ( strcasecmp ( key, "yoffset" ) == 0 ) { yoff = ( float )atof ( val ); }
else if ( strcasecmp ( key, "xadvance" ) == 0 ) { xadv = ( float )atof ( val ); }
else if ( strcasecmp ( key, "page" ) == 0 ) { page = ( u32 )atoi ( val ); }
} while( !endl );
assert ( glyphSet );
MOAIGlyph& glyph = glyphSet->EditGlyph ( c );
glyph.mSrcX = x;
glyph.mSrcY = y;
glyph.mPageID = page;
glyph.mWidth = width;
glyph.mHeight = height;
glyph.mAdvanceX = xadv;
glyph.mBearingX = xoff;
glyph.mBearingY = glyphSet->GetAscent() - yoff;
}
else if ( strcmp ( key, "kernings" ) == 0 ) {
//kernings count=560
do {
p = parseKeyVal ( p, &key, &val, &endl );
} while ( !endl );
}
else if ( strcmp ( key, "kerning" ) == 0 ) {
//kerning first=47 second=65 amount=-1
u32 first = 0;
u32 second = 0;
float amount = 0.0f;
do {
p = parseKeyVal ( p, &key, &val, &endl );
if( strcasecmp ( key, "first" ) == 0 ) { first = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "second" ) == 0 ) { second = ( u32 )atoi ( val ); }
else if ( strcasecmp ( key, "amount" ) == 0 ) { amount =( float )atof ( val ); }
} while( !endl );
if ( first && second && ( amount != 0.0f )) {
assert ( glyphSet );
MOAIGlyph& glyph = glyphSet->EditGlyph ( first );
u32 i = glyph.mKernTable.Size();
glyph.mKernTable.Grow ( i + 1 );
glyph.mKernTable [ i ].mName = second;
glyph.mKernTable [ i ].mX = amount;
glyph.mKernTable [ i ].mY = 0;
}
}
}
}
//----------------------------------------------------------------//
void MOAIDraw::DrawString ( cc8* text, float x, float y, float width, float height ) {
// Sanity check
size_t textLength = strlen ( text );
if ( textLength <= 0 ) return;
// Get the context data
assert ( g_CurrentTextDrawContext );
// Transform the center into 'world' space
MOAIGfxDevice& gfxDevice = MOAIGfxDevice::Get ();
const ZLMatrix4x4& orgWorldTransform = gfxDevice.GetVertexTransform ( MOAIGfxDevice::VTX_WORLD_TRANSFORM );
USVec2D pos ( x, y );
orgWorldTransform.Transform ( pos );
x = pos.mX;
y = pos.mY;
// Extract the 'state'
MOAIFont& font = *g_CurrentTextDrawContext->mFont;
float scale = g_CurrentTextDrawContext->mScale;
float fontSize = g_CurrentTextDrawContext->mFontSize;
MOAIGlyphSet* glyphSet = font.GetGlyphSet ( fontSize );
assert ( glyphSet );
// Let's draw the string!
float cursorX = x;
float cursorY = y + glyphSet->GetAscent() * scale;
MOAIGlyph* prevGlyph = 0;
// Update the glyph cache
for ( size_t i = 0; i < textLength; i++ ) {
cc8 c = text [ i ];
if ( c != '\n' ) {
font.AffirmGlyph ( fontSize, c );
}
}
font.ProcessGlyphs ();
glyphSet = font.GetGlyphSet ( fontSize );
assert ( glyphSet );
for ( size_t i = 0; i < textLength; i++ ) {
cc8 c = text [ i ];
if ( c == '\n' ) {
// Move to the next line
cursorX = x;
cursorY += glyphSet->GetHeight () * scale;
prevGlyph = 0;
if ( height > 0 && (cursorY - y) > height ) {
break;
}
}
else {
if ( width > 0 && (cursorX - x) > width ) {
continue;
}
// Get the glyph for the current character
MOAIGlyph* glyph = glyphSet->GetGlyph ( c );
if ( glyph ) {
// Draw the current glyph
MOAITextureBase* glyphTexture = font.GetGlyphTexture ( *glyph );
if ( glyphTexture ) {
GlyphPlacement placement = { glyph, cursorX, cursorY };
g_CurrentTextDrawContext->mGlyphs.push_back( placement );
}
// Apply kerning
if ( prevGlyph ) {
MOAIKernVec kern = prevGlyph->GetKerning ( glyph->GetCode () );
cursorX += kern.mX * scale;
}
// Move the cursor
cursorX += glyph->GetAdvanceX () * scale;
}
prevGlyph = glyph;
}
}
}