fix items, map, protocls

800OTClient/modules/corelib/ui/tooltip.lua

@@ -0,0 +1,124 @@
+-- @docclass
+g_tooltip = {}
+
+-- private variables
+local toolTipLabel
+local currentHoveredWidget
+
+-- private functions
+local function moveToolTip(first)
+  if not first and (not toolTipLabel:isVisible() or toolTipLabel:getOpacity() < 0.1) then return end
+
+  local pos = g_window.getMousePosition()
+  local windowSize = g_window.getSize()
+  local labelSize = toolTipLabel:getSize()
+
+  pos.x = pos.x + 1
+  pos.y = pos.y + 1
+
+  if windowSize.width - (pos.x + labelSize.width) < 10 then
+    pos.x = pos.x - labelSize.width - 3
+  else
+    pos.x = pos.x + 10
+  end
+
+  if windowSize.height - (pos.y + labelSize.height) < 10 then
+    pos.y = pos.y - labelSize.height - 3
+  else
+    pos.y = pos.y + 10
+  end
+
+  toolTipLabel:setPosition(pos)
+end
+
+local function onWidgetHoverChange(widget, hovered)
+  if hovered then
+    if widget.tooltip and not g_mouse.isPressed() then
+      g_tooltip.display(widget.tooltip)
+      currentHoveredWidget = widget
+    end
+  else
+    if widget == currentHoveredWidget then
+      g_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 g_tooltip.init()
+  connect(UIWidget, {  onStyleApply = onWidgetStyleApply,
+                       onHoverChange = onWidgetHoverChange})
+
+  addEvent(function()
+    toolTipLabel = g_ui.createWidget('UILabel', rootWidget)
+    toolTipLabel:setId('toolTip')
+    toolTipLabel:setBackgroundColor('#111111cc')
+    toolTipLabel:setTextAlign(AlignCenter)
+    toolTipLabel:hide()
+  end)
+end
+
+function g_tooltip.terminate()
+  disconnect(UIWidget, { onStyleApply = onWidgetStyleApply,
+                         onHoverChange = onWidgetHoverChange })
+
+  currentHoveredWidget = nil
+  toolTipLabel:destroy()
+  toolTipLabel = nil
+
+  g_tooltip = nil
+end
+
+function g_tooltip.display(text)
+  if text == nil or text:len() == 0 then return end
+  if not toolTipLabel then return end
+
+  toolTipLabel:setText(text)
+  toolTipLabel:resizeToText()
+  toolTipLabel:resize(toolTipLabel:getWidth() + 4, toolTipLabel:getHeight() + 4)
+  toolTipLabel:show()
+  toolTipLabel:raise()
+  toolTipLabel:enable()
+  g_effects.fadeIn(toolTipLabel, 100)
+  moveToolTip(true)
+  
+  connect(rootWidget, {
+    onMouseMove = moveToolTip,
+  })  
+end
+
+function g_tooltip.hide()
+  g_effects.fadeOut(toolTipLabel, 100)
+  
+  disconnect(rootWidget, {
+    onMouseMove = moveToolTip,
+  })  
+end
+
+
+-- @docclass UIWidget @{
+
+-- UIWidget extensions
+function UIWidget:setTooltip(text)
+  self.tooltip = text
+end
+
+function UIWidget:removeTooltip()
+  self.tooltip = nil
+end
+
+function UIWidget:getTooltip()
+  return self.tooltip
+end
+
+-- @}
+
+g_tooltip.init()
+connect(g_app, { onTerminate = g_tooltip.terminate })