mirror of
https://github.com/carp-lang/Carp.git
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a873099640
* chore: Moved examples that work more as tests to folder 'test/produces-output' * fix: Corrections to the release script * fix: Correct filename on Windows * fix: Move more files around * fix: Remove check-malloc example * fix: Apparently unicode example does not work * chore: Move nested_lambdas.carp back to examples * chore: Remove .DS_Store files * fix: Bring back unicode test * test: Make sure benchmark compile (had to remove mandelbrot and n-bodies) * fix: Replacement implementation of clock_gettime on Windows * chore: Trigger CI * fix: Define CLOCK_REALTIME Co-authored-by: Erik Svedang <erik@Eriks-iMac.local>
50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
(load "SDL.carp")
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(load "SDL_ttf.carp")
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(Project.config "title" "Fonts")
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(def font (the (Ptr TTF_Font) NULL))
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(def text1 (the (Ptr SDL_Texture) NULL))
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(defn shifting-bg-color []
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(SDL.rgb (/ (SDL.get-ticks) 10) 240 220))
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(defn draw [app rend state-ref]
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(do (SDL.bg rend &(shifting-bg-color))
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(let [dims (SDL.dimensions text1)]
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(SDL.draw-texture-centered rend text1 &(SDL.point 200 150)))))
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(defn change-text [rend]
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(do (when (not (Pointer.eq NULL text1))
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(SDL.destroy-texture text1))
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(set! text1 (TTF.render-text-to-texture rend font &(str* "TICK: " (SDL.get-ticks)) (SDL.rgb 0 0 0)))))
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(defn event-handler [app state event]
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(let [et (SDL.Event.type event)]
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(cond
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;; Quit event
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(= et SDL.Event.quit)
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(SDLApp.stop app)
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;; Key events
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(= et SDL.Event.key-down)
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(let [key (SDL.Event.keycode event)]
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(cond
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(= key SDL.Keycode.escape) (SDLApp.stop app)
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(= key SDL.Keycode.return) (do (change-text @(SDLApp.renderer app))
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state)
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state))
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;; Other event
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state)))
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(defn main []
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(let [app (SDLApp.create "Font Rendering with SDL_ttf" 400 300)
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rend @(SDLApp.renderer &app)]
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(do
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(if (TTF.ok? (TTF.init))
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(do (set! font (TTF.open-font (cstr "resources/Hasklig.otf") 20))
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(set! text1 (TTF.render-text-to-texture rend font "Carp!" (SDL.rgb 0 0 0)))
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(SDLApp.run-with-callbacks &app event-handler id draw 0))
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(println* "Failed to initialize SDL_ttf: " &(from-cstr (TTF.get-error)))))))
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