Colour bars/Display: Difference between revisions
Ada version
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}
</lang>
=={{header|Ada}}==
{{libheader|SDLAda}}
<lang Ada>with SDL.Video.Windows.Makers;
with SDL.Video.Renderers.Makers;
with SDL.Video.Palettes;
with SDL.Events.Events;
with SDL.Events.Keyboards;
procedure Colour_Bars_Display is
use type SDL.Events.Event_Types;
use SDL.C;
Colours : constant array (0 .. 7) of SDL.Video.Palettes.Colour :=
((0, 0, 0, 255), (255, 0, 0, 255),
(0, 255, 0, 255), (0, 0, 255, 255),
(255, 0, 255, 255), (0, 255, 255, 255),
(255, 255, 0, 255), (255, 255, 255, 255));
Window : SDL.Video.Windows.Window;
Renderer : SDL.Video.Renderers.Renderer;
Event : SDL.Events.Events.Events;
Bar_Width : int;
begin
if not SDL.Initialise (Flags => SDL.Enable_Screen) then
return;
end if;
SDL.Video.Windows.Makers.Create (Win => Window,
Title => "",
Position => SDL.Natural_Coordinates'(0, 0),
Size => SDL.Positive_Sizes'(0, 0),
Flags => SDL.Video.Windows.Full_Screen_Desktop);
SDL.Video.Renderers.Makers.Create (Renderer, Window.Get_Surface);
Bar_Width := Window.Get_Size.Width / 8;
for A in Colours'Range loop
Renderer.Set_Draw_Colour (Colour => Colours (A));
Renderer.Fill (Rectangle => (X => SDL.C.int (A) * Bar_Width, Y => 0,
Width => Bar_Width,
Height => Window.Get_Size.Height));
end loop;
Window.Update_Surface;
Wait_Loop : loop
while SDL.Events.Events.Poll (Event) loop
exit Wait_Loop when Event.Common.Event_Type = SDL.Events.Keyboards.Key_Down;
end loop;
delay 0.050;
end loop Wait_Loop;
Window.Finalize;
SDL.Finalise;
end Colour_Bars_Display;</lang>
=={{header|AutoHotkey}}==
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