95 lines
2.4 KiB
Factor
95 lines
2.4 KiB
Factor
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! Strings are shapes too. This is somewhat of a hack and strings
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! do not have x/y co-ordinates.
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IN: gadgets
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USING: alien hashtables kernel lists namespaces sdl
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sdl-ttf sdl-video streams strings ;
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SYMBOL: fonts
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: <font> ( name ptsize -- font )
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>r resource-path swap cat2 r> TTF_OpenFont ;
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SYMBOL: logical-fonts
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: logical-font ( name -- name )
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dup logical-fonts get hash dup [ nip ] [ drop ] ifte ;
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global [
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{{
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[[ "Monospaced" "/fonts/VeraMono.ttf" ]]
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[[ "Serif" "/fonts/VeraSe.ttf" ]]
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[[ "Sans Serif" "/fonts/Vera.ttf" ]]
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}} logical-fonts set
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] bind
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: (lookup-font) ( [[ name ptsize ]] -- font )
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unswons logical-font swons dup get dup alien? [
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dup alien-address 0 = [
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drop f
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] when
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] when ;
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: lookup-font ( [[ name ptsize ]] -- font )
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fonts get [
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(lookup-font) [
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nip
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] [
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[ uncons <font> dup ] keep set
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] ifte*
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] bind ;
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: make-rect ( x y w h -- rect )
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<rect>
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[ set-rect-h ] keep
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[ set-rect-w ] keep
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[ set-rect-y ] keep
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[ set-rect-x ] keep ;
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: surface-rect ( x y surface -- rect )
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dup surface-w swap surface-h make-rect ;
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: draw-surface ( x y surface -- )
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surface get SDL_UnlockSurface
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[
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[ surface-rect ] keep swap surface get 0 0
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] keep surface-rect swap rot SDL_UpperBlit drop
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surface get dup must-lock-surface? [
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SDL_LockSurface
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] when drop ;
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: size-string ( font text -- w h )
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>r lookup-font r> filter-nulls dup string-length 0 = [
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drop TTF_FontHeight 0 swap
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] [
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<int-box> <int-box> [ TTF_SizeUNICODE drop ] 2keep
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swap int-box-i swap int-box-i
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] ifte ;
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global [ <namespace> fonts set ] bind
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M: string shape-x drop 0 ;
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M: string shape-y drop 0 ;
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M: string shape-w
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font get swap size-string ( h -) drop ;
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M: string shape-h ( text -- h )
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#! This is just the height of the current font.
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drop font get lookup-font TTF_FontHeight ;
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: filter-nulls ( str -- str )
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"\0" over string-contains? [
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[ dup CHAR: \0 = [ drop CHAR: \s ] when ] string-map
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] when ;
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M: string draw-shape ( text -- )
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dup string-length 0 = [
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drop
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] [
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filter-nulls font get lookup-font swap
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fg 3unlist make-color
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bg 3unlist make-color
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TTF_RenderUNICODE_Shaded
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[ >r x get y get r> draw-surface ] keep
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SDL_FreeSurface
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] ifte ;
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