jf-roku/components/ItemGrid.brs
2020-06-25 11:37:18 +01:00

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sub init()
m.top.itemComponentName = "ListPoster"
m.top.content = setData()
m.top.rowFocusAnimationStyle = "floatingFocus"
m.top.showRowLabel = [false]
m.top.setFocus(true)
end sub
sub updateSize()
m.top.numRows = 1
if m.top.itemsPerRow = invalid or m.top.itemsPerRow = 0 then
m.top.itemsPerRow = 6
end if
dimensions = m.top.getScene().currentDesignResolution
topBorder = 75
border = 96
topSpace = topBorder + 105
m.top.translation = [96, topSpace]
textHeight = 100
itemWidth = (dimensions["width"] - border*2) / m.top.itemsPerRow -20
itemHeight = itemWidth * 1.5 + textHeight
if itemHeight*m.top.rowsPerPage > (dimensions["height"] - topBorder - 115) then
ratio = (itemHeight*m.top.rowsPerPage) / (981 - topSpace - 15)
itemHeight = itemHeight / ratio
itemWidth = itemWidth / ratio
end if
m.top.visible = true
' Size of the individual rows
m.top.itemSize = [dimensions["width"] - border*2, itemHeight]
' Spacing between Rows
m.top.itemSpacing = [ 0, 10]
' Size of items in the row
m.top.rowItemSize = [ itemWidth, itemHeight ]
' Spacing between items in the row
itemSpace = (dimensions["width"] - border*2 - itemWidth*m.top.itemsPerRow) / (m.top.itemsPerRow-1)
m.top.rowItemSpacing = [ itemSpace-1, 0 ]
end sub
function setupRows()
updateSize()
objects = m.top.objects
itemsPerRow = m.top.itemsPerRow
n = objects.items.count()
' This tests to make sure we are at an integer number of rows
if int(n/itemsPerRow) = n/itemsPerRow then
m.top.numRows = n/itemsPerRow
' Otherwise we need an extra (not full) row for the leftovers
else
m.top.numRows = n/itemsPerRow + 1
end if
m.top.content = setData()
end function
function setData()
data = CreateObject("roSGNode", "ContentNode")
if m.top.objects = invalid then
' Return an empty node just to return something; we'll update once we have data
return data
end if
objects = m.top.objects
itemsPerRow = m.top.itemsPerRow
for rowNum = 1 to m.top.numRows
row = data.CreateChild("ContentNode")
for i = 1 to itemsPerRow
index = (rowNum - 1) * itemsPerRow + i
if index > objects.items.count() then
exit for
end if
row.appendChild(objects.items[index-1])
end for
end for
return data
end function
function onKeyEvent(key as string, press as boolean) as boolean
if not press then return false
return false
end function