tibia-client/modules/corelib/ui/uimovabletabbar.lua

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-- @docclass
UIMoveableTabBar = extends(UIWidget)
-- private functions
local function onTabClick(tab)
tab.tabBar:selectTab(tab)
end
local function updateMargins(tabBar, ignored)
if #tabBar.tabs == 0 then return end
local currentMargin = 0
for i = 1, #tabBar.tabs do
tabBar.tabs[i]:setMarginLeft(currentMargin)
currentMargin = currentMargin + tabBar.tabSpacing + tabBar.tabs[i]:getWidth()
end
end
local function updateIndexes(tabBar, tab, xoff)
local tabs = tabBar.tabs
local currentMargin = 0
local prevIndex = table.find(tabs, tab)
local newIndex = prevIndex
local xmid = xoff + tab:getWidth()/2
for i = 1, #tabs do
local nextTab = tabs[i]
if xmid >= currentMargin + nextTab:getWidth()/2 then
newIndex = table.find(tabs, nextTab)
end
currentMargin = currentMargin + tabBar.tabSpacing * (i - 1) + tabBar.tabs[i]:getWidth()
end
if newIndex ~= prevIndex then
table.remove(tabs, table.find(tabs, tab))
table.insert(tabs, newIndex, tab)
end
end
local function getMaxMargin(tabBar, tab)
if #tabBar.tabs == 0 then return end
local maxMargin = 0
for i = 1, #tabBar.tabs do
if tabBar.tabs[i] ~= tab then
maxMargin = maxMargin + tabBar.tabs[i]:getWidth()
end
end
return maxMargin + tabBar.tabSpacing * (#tabBar.tabs- 1)
end
local function onTabMousePress(tab, mousePos, mouseButton)
if mouseButton == MouseRightButton then
if tab.menuCallback then tab.menuCallback(tab, mousePos, mouseButton) end
return true
end
end
local function onTabDragEnter(tab, mousePos)
tab:raise()
tab.hotSpot = mousePos.x - tab:getMarginLeft()
tab.tabBar.selected = tab
return true
end
local function onTabDragLeave(tab)
updateMargins(tab.tabBar)
tab.tabBar.selected = nil
return true
end
local function onTabDragMove(tab, mousePos, mouseMoved)
if tab == tab.tabBar.selected then
local xoff = mousePos.x - tab.hotSpot
-- update indexes
updateIndexes(tab.tabBar, tab, xoff)
updateIndexes(tab.tabBar, tab, xoff)
-- update margins
updateMargins(tab.tabBar)
xoff = math.max(xoff, 0)
xoff = math.min(xoff, getMaxMargin(tab.tabBar, tab))
tab:setMarginLeft(xoff)
end
end
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local function tabBlink(tab, step)
step = step or 0
tab:setOn(not tab:isOn())
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removeEvent(tab.blinkEvent)
if step < 4 then
tab.blinkEvent = scheduleEvent(function() tabBlink(tab, step+1) end, 500)
else
tab:setOn(true)
tab.blinkEvent = nil
end
end
-- public functions
function UIMoveableTabBar.create()
local tabbar = UIMoveableTabBar.internalCreate()
tabbar:setFocusable(false)
tabbar.tabs = {}
tabbar.selected = nil -- dragged tab
tabbar.tabSpacing = 0
tabbar.tabsMoveable = false
return tabbar
end
function UIMoveableTabBar:setContentWidget(widget)
self.contentWidget = widget
if #self.tabs > 0 then
self.contentWidget:addChild(self.tabs[1].tabPanel)
end
end
function UIMoveableTabBar:setTabSpacing(tabSpacing)
self.tabSpacing = tabSpacing
updateMargins(self)
end
function UIMoveableTabBar:addTab(text, panel, menuCallback)
if panel == nil then
panel = g_ui.createWidget(self:getStyleName() .. 'Panel')
panel:setId('tabPanel')
end
local tab = g_ui.createWidget(self:getStyleName() .. 'Button', self)
panel.isTab = true
tab.tabPanel = panel
tab.tabBar = self
tab:setId('tab')
tab:setDraggable(self.tabsMoveable)
tab:setText(text)
tab:setWidth(tab:getTextSize().width + tab:getPaddingLeft() + tab:getPaddingRight())
tab.menuCallback = menuCallback or nil
tab.onClick = onTabClick
tab.onMousePress = onTabMousePress
tab.onDragEnter = onTabDragEnter
tab.onDragLeave = onTabDragLeave
tab.onDragMove = onTabDragMove
tab.onDestroy = function() tab.tabPanel:destroy() end
table.insert(self.tabs, tab)
if #self.tabs == 1 then
self:selectTab(tab)
tab:setMarginLeft(0)
else
local newMargin = self.tabSpacing * (#self.tabs - 1)
for i = 1, #self.tabs - 1 do
newMargin = newMargin + self.tabs[i]:getWidth()
end
tab:setMarginLeft(newMargin)
end
return tab
end
-- Additional function to move the tab by lua
function UIMoveableTabBar:moveTab(tab, units)
local index = table.find(self.tabs, tab)
if index == nil then return end
local focus = false
if self.currentTab == tab then
self:selectPrevTab()
focus = true
end
table.remove(self.tabs, index)
local newIndex = math.min(#self.tabs+1, math.max(index + units, 1))
table.insert(self.tabs, newIndex, tab)
if focus then self:selectTab(tab) end
updateMargins(self)
return newIndex
end
function UIMoveableTabBar:onStyleApply(styleName, styleNode)
if styleNode['moveable'] then
self.tabsMoveable = styleNode['moveable']
end
end
function UIMoveableTabBar:removeTab(tab)
local index = table.find(self.tabs, tab)
if index == nil then return end
if self.currentTab == tab then
self:selectPrevTab()
end
table.remove(self.tabs, index)
if tab.blinkEvent then
removeEvent(tab.blinkEvent)
end
tab:destroy()
updateMargins(self)
end
function UIMoveableTabBar:getTab(text)
for k,tab in pairs(self.tabs) do
if tab:getText():lower() == text:lower() then
return tab
end
end
end
function UIMoveableTabBar:selectTab(tab)
if self.currentTab == tab then return end
if self.contentWidget then
local selectedWidget = self.contentWidget:getLastChild()
if selectedWidget and selectedWidget.isTab then
self.contentWidget:removeChild(selectedWidget)
end
self.contentWidget:addChild(tab.tabPanel)
tab.tabPanel:fill('parent')
end
if self.currentTab then
self.currentTab:setChecked(false)
end
signalcall(self.onTabChange, self, tab)
self.currentTab = tab
tab:setChecked(true)
tab:setOn(false)
tab.blinking = false
local parent = tab:getParent()
parent:focusChild(tab, MouseFocusReason)
end
function UIMoveableTabBar:selectNextTab()
if self.currentTab == nil then return end
local index = table.find(self.tabs, self.currentTab)
if index == nil then return end
local nextTab = self.tabs[index + 1] or self.tabs[1]
if not nextTab then return end
self:selectTab(nextTab)
end
function UIMoveableTabBar:selectPrevTab()
if self.currentTab == nil then return end
local index = table.find(self.tabs, self.currentTab)
if index == nil then return end
local prevTab = self.tabs[index - 1] or self.tabs[#self.tabs]
if not prevTab then return end
self:selectTab(prevTab)
end
function UIMoveableTabBar:blinkTab(tab)
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if tab:isChecked() then return end
tab.blinking = true
tabBlink(tab)
end
function UIMoveableTabBar:getTabPanel(tab)
return tab.tabPanel
end
function UIMoveableTabBar:getCurrentTabPanel()
if self.currentTab then
return self.currentTab.tabPanel
end
end
function UIMoveableTabBar:getCurrentTab()
return self.currentTab
end