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function make_paint(size, color)
local paint = Sk.newPaint();
paint:setAntiAlias(true)
paint:setTextSize(size)
paint:setColor(color)
return paint
end
function find_paint(paints, style)
if not style then
style = "child"
end
local paint = paints[style]
return paint
end
function draw_node(canvas, node, x, y, paints)
if node.text then
local paint = find_paint(paints, node.style)
canvas:drawText(node.text, x, y, paint)
end
if node.draw then
node.draw(canvas)
end
end
function drawSlide(canvas, slide, template, paints)
draw_node(canvas, slide, template.title.x, template.title.y, paints)
if slide.children then
local x = template.child.x
local y = template.child.y
local dy = template.child.dy
for i = 1, #slide.children do
draw_node(canvas, slide.children[i], x, y, paints)
y = y + dy
end
end
end
--------------------------------------------------------------------------------------
gTemplate = {
title = { x = 10, y = 64, textSize = 64 },
child = { x = 40, y = 120, dy = 50, textSize = 40 },
}
gPaints = {}
gPaints.title = make_paint(gTemplate.title.textSize, { a=1, r=0, g=0, b=0 } )
gPaints.child = make_paint(gTemplate.child.textSize, { a=.75, r=0, g=0, b=0 } )
gRedPaint = Sk.newPaint()
gRedPaint:setAntiAlias(true)
gRedPaint:setColor{a=1, r=1, g=0, b=0 }
gSlides = {
{ text = "Title1", style="title", color = { a=1, r=1, g=0, b=0 },
children = {
{ text = "bullet 1", style = "child" },
{ text = "bullet 2", style = "child" },
{ text = "bullet 3", style = "child" },
{ draw = function (canvas)
canvas:drawOval({left=300, top=300, right=400, bottom=400}, gRedPaint)
end },
},
},
{ text = "Title2", style="title", color = { a=1, r=0, g=1, b=0 },
children = {
{ text = "bullet uno", style = "child" },
{ text = "bullet 2", style = "child" },
{ text = "bullet tres", style = "child" },
}
},
{ text = "Title3", style="title",
children = {
{ text = "bullet 1", style = "child", },
{ text = "bullet 2", style = "child", color = { r=0, g=0, b=1 } },
{ text = "bullet 3", style = "child" },
}
}
}
gSlideIndex = 1
--------------------------------------------------------------------------------------
function onDrawContent(canvas)
drawSlide(canvas, gSlides[gSlideIndex], gTemplate, gPaints)
return false -- we're not animating
end
function onClickHandler(x, y)
if x < 100 and y < 100 then
onNextSlide()
return true
end
return false
end
function onNextSlide()
gSlideIndex = gSlideIndex + 1
if gSlideIndex > #gSlides then
gSlideIndex = 1
end
end
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