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ToolTip = {}
-- private variables
local toolTipLabel
local currentHoveredWidget
-- private functions
local function moveToolTip(tooltip)
if not tooltip:isVisible() then return end
local pos = g_window.getMousePosition()
pos.y = pos.y + 1
local xdif = g_window.getSize().width - (pos.x + tooltip:getWidth())
if xdif < 2 then
pos.x = pos.x - tooltip:getWidth() - 3
else
pos.x = pos.x + 10
end
tooltip:setPosition(pos)
end
local function onWidgetHoverChange(widget, hovered)
if hovered then
if widget.tooltip then
ToolTip.display(widget.tooltip)
currentHoveredWidget = widget
end
else
if widget == currentHoveredWidget then
ToolTip:hide()
currentHoveredWidget = nil
end
end
end
local function onWidgetStyleApply(widget, styleName, styleNode)
if styleNode.tooltip then
widget.tooltip = styleNode.tooltip
end
end
-- public functions
function ToolTip.init()
toolTipLabel = createWidget('Label', rootWidget)
toolTipLabel:setId('toolTip')
toolTipLabel:setBackgroundColor('#111111bb')
connect(toolTipLabel, { onMouseMove = moveToolTip })
connect(UIWidget, { onStyleApply = onWidgetStyleApply,
onHoverChange = onWidgetHoverChange})
end
function ToolTip.terminate()
disconnect(UIWidget, { onStyleApply = onWidgetStyleApply,
onHoverChange = onWidgetHoverChange })
currentHoveredWidget = nil
toolTipLabel:destroy()
toolTipLabel = nil
end
function ToolTip.display(text)
if text == nil then return end
toolTipLabel:setText(text)
toolTipLabel:resizeToText()
toolTipLabel:resize(toolTipLabel:getWidth() + 4, toolTipLabel:getHeight() + 4)
toolTipLabel:show()
toolTipLabel:raise()
moveToolTip(toolTipLabel)
end
function ToolTip.hide()
toolTipLabel:hide()
end
-- UIWidget extensions
function UIWidget:setTooltip(text)
self.tooltip = text
end
function UIWidget:getTooltip()
return self.tooltip
end