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| 1 |
| 2 local r = { left = 10, top = 10, right = 100, bottom = 80 } |
| 3 local x = 0; |
| 4 |
| 5 local paint = Sk.newPaint(); |
| 6 paint:setAntiAlias(true); |
| 7 |
| 8 local image -- = Sk.loadImage('/skia/sailboat.jpg'); |
| 9 function setImageFilename(filename) |
| 10 image = Sk.loadImage(filename) |
| 11 end |
| 12 |
| 13 |
| 14 local color = {a = 1, r = 1, g = 0, b = 0}; |
| 15 |
| 16 function rnd(range) |
| 17 return math.random() * range; |
| 18 end |
| 19 |
| 20 rndX = function () return rnd(640) end |
| 21 rndY = function () return rnd(480) end |
| 22 |
| 23 function draw_rand_path(canvas); |
| 24 if not path_paint then |
| 25 path_paint = Sk.newPaint(); |
| 26 path_paint:setAntiAlias(true); |
| 27 end |
| 28 path_paint:setColor({a = 1, r = math.random(), g = math.random(), b = math.ra
ndom() }); |
| 29 |
| 30 local path = Sk.newPath(); |
| 31 path:moveTo(rndX(), rndY()); |
| 32 for i = 0, 50 do |
| 33 path:quadTo(rndX(), rndY(), rndX(), rndY()); |
| 34 end |
| 35 canvas:drawPath(path, path_paint); |
| 36 |
| 37 paint:setColor{a=1,r=0,g=0,b=1}; |
| 38 local align = { 'left', 'center', 'right' }; |
| 39 paint:setTextSize(30); |
| 40 for k, v in next, align do |
| 41 paint:setTextAlign(v); |
| 42 canvas:drawText('Hamburgefons', 320, 200 + 30*k, paint); |
| 43 end |
| 44 end |
| 45 |
| 46 function onStartup() |
| 47 local paint = Sk.newPaint(); |
| 48 paint:setColor{a=1, r=1, g=0, b=0}; |
| 49 if false then |
| 50 local doc = Sk.newDocumentPDF('/skia/trunk/test.pdf'); |
| 51 local canvas = doc:beginPage(72*8.5, 72*11); |
| 52 canvas:drawText('Hello Lua', 300, 300, paint); |
| 53 doc:close(); |
| 54 doc = nil; |
| 55 end |
| 56 end |
| 57 |
| 58 function onDrawContent(canvas) |
| 59 draw_rand_path(canvas); |
| 60 color.g = x / 100; |
| 61 paint:setColor(color) |
| 62 canvas:translate(x, 0); |
| 63 canvas:drawOval(r, paint) |
| 64 x = x + 1; |
| 65 local r2 = {} |
| 66 r2.left = x; |
| 67 r2.top = r.bottom + 50; |
| 68 r2.right = r2.left + image:width() * 1; |
| 69 r2.bottom = r2.top + image:height() * 1; |
| 70 canvas:drawImageRect(image, nil, r2, 0.75); |
| 71 if x > 200 then x = 0 end; |
| 72 end |
| 73 |
| 74 onStartup() |
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