factor/contrib/x11/draw-string.factor

38 lines
1.3 KiB
Factor

USING: kernel math arrays namespaces sequences x11 x rectangle ;
IN: x
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: text-width ( string -- width ) font get swap dup length XTextWidth ;
: string-size ( string -- size ) text-width font get font-height 2array ;
: string-rect ( string -- rect ) string-size { 0 0 } swap <rect> ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: base-point ( rect -- )
top-left font get XFontStruct-ascent 0 swap 2array v+ ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: draw-string-top-left ( point string -- )
dup string-rect swapd move-top-left base-point swap draw-string ;
: draw-string-top-right ( point string -- )
dup string-rect swapd move-top-right base-point swap draw-string ;
: draw-string-bottom-left ( point string -- )
dup string-rect swapd move-bottom-left base-point swap draw-string ;
: draw-string-bottom-right ( point string -- )
dup string-rect swapd move-bottom-right base-point swap draw-string ;
: draw-string-middle-center ( point string -- )
dup string-rect swapd move-middle-center base-point swap draw-string ;
! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
: draw-string-centered ( string -- )
window-size { 1/2 1/2 } v* swap draw-string-middle-center ;