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