Cocos2dx get the font width and height

Android:

1. Add the following method to ccimage:

// The header file declaration is omitted.

Cocos2d: ccsize ccimage: getstringsize (const char * Text, const char * pfontname, int nsize)

{

Jnimethodinfo minfo;

If (! Jnihelper: getstaticmethodinfo (minfo, "org/cocos2dx/lib/cocos2dxbitmap", "getfontsize ",

"(Ljava/lang/string; I) [I "))

{

Cclog ("getstringsize % S % d: error to get methodinfo", _ file __, _ line __);

Return ccsizemake (nsize, nsize );

}

Jstring jmsg1 = minfo. env-> newstringutf (text );

Jstring jmsg2 = minfo. env-> newstringutf (pfontname );

Jint size = nsize;

Jintarray array = (jintarray) minfo. env-> callstaticobjectmethod (minfo. classid, minfo. methodid, jmsg1, jmsg2, size );

Jsize Len = minfo. env-> getarraylength (array );

Jint * Body = minfo. env-> getintarrayelements (array, 0 );

If (Body = NULL ){

Cclog ("body % S % d: error to get methodinfo", _ file __, _ line __);

Return ccsizemake (nsize, nsize );

}

Int width = body [0];

Int Height = body [1];

// The following cleanup operations are required. Otherwise, referencetable overflow (max = 512) will be reported)

Minfo. env-> releaseintarrayelements (array, body, 0 );

Minfo. env-> deletelocalref (jmsg1 );

Minfo. env-> deletelocalref (jmsg2 );

Minfo. env-> deletelocalref (array );

Return ccsizemake (width, height );

}

2. Add the following content to the cocos2dxbitmap class:

Static string tempfontname = "";

Static int tempfontsize = 0;

Private Static paint tmppaint;

Public static int [] getfontsize (string text, final string pfontname, final int pfontsize ){

If (tmppaint = NULL | tempfontsize! = Pfontsize |! Tempfontname. Equals (pfontname )){

Log. I ("cocos2d-x-android", "pfontname =" + pfontname + "pfontsize =" + pfontsize );

Tmppaint = cocos2dxbitmap. newpaint (pfontname, pfontsize, horizontalalign_left );

Tempfontname = pfontname;

Tempfontsize = pfontsize;

}

Int width = (INT) tmppaint. measuretext (text );

Final fontmetricsint fm = tmppaint. getfontmetricsint ();

Int Height = (INT) math. Ceil (FM. Bottom-FM. Top) + 2;

Return new int [] {width, height };

}

 

IOS:

Ccsize ccimage: getstringsize (const char * Text, const char * pfontname, int nsize)

{

Nsstring * STR = [nsstring stringwithuf8string: text];

Nsstring * fntname = [nsstring stringwithuf8string: pfontname];

Cgsize dim, constrainsize;

Id font = [uifont fontwithname: fntname size: nsize];

If (font)

{

Dim = _ calculatestringsize (STR, Font, & constrainsize );

}

Else

{

If (! Font)

{

Font = [uifont systemfontofsize: nsize];

}

If (font)

{

Dim = _ calculatestringsize (STR, Font, & constrainsize );

}

}

Return ccsizemake (dim. Width, Dim. Height );

}