-! Copyright (C) 2009 Slava Pestov.
+! Copyright (C) 2009, 2010 Slava Pestov.
! See http://factorcode.org/license.txt for BSD license.
-USING: assocs accessors alien core-graphics.types core-text
-core-text.fonts kernel hashtables namespaces sequences
-ui.gadgets.worlds ui.text ui.text.private opengl opengl.gl
-opengl.textures destructors combinators core-foundation
-core-foundation.strings math math.vectors init colors colors.constants
-cache arrays images ;
+USING: accessors cache core-graphics.types core-text
+core-text.fonts io.encodings.string io.encodings.utf16 kernel
+locals math math.vectors namespaces sequences ui.text
+ui.text.private ;
IN: ui.text.core-text
SINGLETON: core-text-renderer
+<PRIVATE
+
+: unscale ( m -- n )
+ retina? get-global [ 2.0 / ] when ; inline
+
+: scale ( m -- n )
+ retina? get-global [ 2.0 * ] when ; inline
+
+: scale-dim ( dim -- dim' )
+ retina? get-global [ [ 2.0 / ] map ] when ; inline
+
+: scale-metrics ( metrics -- metrics' )
+ retina? get-global [
+ clone
+ [ 2.0 / ] change-width
+ [ 2.0 / ] change-ascent
+ [ 2.0 / ] change-descent
+ [ 2.0 / ] change-height
+ [ 2.0 / ] change-leading
+ [ 2.0 / ] change-cap-height
+ [ 2.0 / ] change-x-height
+ ] when ; inline
+
+PRIVATE>
+
M: core-text-renderer string-dim
[ " " string-dim { 0 1 } v* ]
- [ cached-line dim>> ]
+ [ cached-line dim>> scale-dim ]
if-empty ;
M: core-text-renderer flush-layout-cache
- cached-lines get purge-cache ;
-
-: rendered-line ( font string -- texture )
- world get world-text-handle [
- cached-line [ image>> ] [ loc>> ] bi <texture>
- ] 2cache ;
+ cached-lines get-global purge-cache ;
-M: core-text-renderer draw-string ( font string -- )
- rendered-line draw-texture ;
+M: core-text-renderer string>image ( font string -- image loc )
+ cached-line [ line>image ] [ loc>> scale-dim ] bi ;
-M: core-text-renderer x>offset ( x font string -- n )
+M:: core-text-renderer x>offset ( x font string -- n )
+ x font string
[ 2drop 0 ] [
cached-line line>>
- swap 0 <CGPoint> CTLineGetStringIndexForPosition
- ] if-empty ;
+ swap scale 0 <CGPoint> CTLineGetStringIndexForPosition
+ ] if-empty
+ 2 * 0 swap string utf16n encode subseq
+ utf16n decode length ;
-M: core-text-renderer offset>x ( n font string -- x )
- cached-line line>> swap f
- CTLineGetOffsetForStringIndex ;
+M:: core-text-renderer offset>x ( n font string -- x )
+ font string cached-line line>>
+ 0 n string subseq utf16n encode length 2 / >integer
+ f
+ CTLineGetOffsetForStringIndex unscale ;
M: core-text-renderer font-metrics ( font -- metrics )
cache-font-metrics ;
M: core-text-renderer line-metrics ( font string -- metrics )
[ " " line-metrics clone 0 >>width ]
- [ cached-line metrics>> ]
+ [ cached-line metrics>> scale-metrics ]
if-empty ;
-core-text-renderer font-renderer set-global
\ No newline at end of file
+core-text-renderer font-renderer set-global