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

130 lines
3.6 KiB
Lua

-- @docclass
UIPopupScrollMenu = extends(UIWidget, "UIPopupScrollMenu")
local currentMenu
function UIPopupScrollMenu.create()
local menu = UIPopupScrollMenu.internalCreate()
local scrollArea = g_ui.createWidget('UIScrollArea', menu)
scrollArea:setLayout(UIVerticalLayout.create(menu))
scrollArea:setId('scrollArea')
local scrollBar = g_ui.createWidget('VerticalScrollBar', menu)
scrollBar:setId('scrollBar')
scrollBar.pixelsScroll = false
scrollBar:addAnchor(AnchorRight, 'parent', AnchorRight)
scrollBar:addAnchor(AnchorTop, 'parent', AnchorTop)
scrollBar:addAnchor(AnchorBottom, 'parent', AnchorBottom)
scrollArea:addAnchor(AnchorLeft, 'parent', AnchorLeft)
scrollArea:addAnchor(AnchorTop, 'parent', AnchorTop)
scrollArea:addAnchor(AnchorBottom, 'parent', AnchorBottom)
scrollArea:addAnchor(AnchorRight, 'next', AnchorLeft)
scrollArea:setVerticalScrollBar(scrollBar)
menu.scrollArea = scrollArea
menu.scrollBar = scrollBar
return menu
end
function UIPopupScrollMenu:setScrollbarStep(step)
self.scrollBar:setStep(step)
end
function UIPopupScrollMenu:display(pos)
-- don't display if not options was added
if self.scrollArea:getChildCount() == 0 then
self:destroy()
return
end
if g_ui.isMouseGrabbed() then
self:destroy()
return
end
if currentMenu then
currentMenu:destroy()
end
if pos == nil then
pos = g_window.getMousePosition()
end
rootWidget:addChild(self)
self:setPosition(pos)
self:grabMouse()
currentMenu = self
end
function UIPopupScrollMenu:onGeometryChange(oldRect, newRect)
local parent = self:getParent()
if not parent then return end
local ymax = parent:getY() + parent:getHeight()
local xmax = parent:getX() + parent:getWidth()
if newRect.y + newRect.height > ymax then
local newy = newRect.y - newRect.height
if newy > 0 and newy + newRect.height < ymax then self:setY(newy) end
end
if newRect.x + newRect.width > xmax then
local newx = newRect.x - newRect.width
if newx > 0 and newx + newRect.width < xmax then self:setX(newx) end
end
self:bindRectToParent()
end
function UIPopupScrollMenu:addOption(optionName, optionCallback, shortcut)
local optionWidget = g_ui.createWidget(self:getStyleName() .. 'Button', self.scrollArea)
optionWidget.onClick = function(widget)
self:destroy()
optionCallback()
end
optionWidget:setText(optionName)
local width = optionWidget:getTextSize().width + optionWidget:getMarginLeft() + optionWidget:getMarginRight() + 15
if shortcut then
local shortcutLabel = g_ui.createWidget(self:getStyleName() .. 'ShortcutLabel', optionWidget)
shortcutLabel:setText(shortcut)
width = width + shortcutLabel:getTextSize().width + shortcutLabel:getMarginLeft() + shortcutLabel:getMarginRight()
end
self:setWidth(math.max(self:getWidth(), width))
end
function UIPopupScrollMenu:addSeparator()
g_ui.createWidget(self:getStyleName() .. 'Separator', self.scrollArea)
end
function UIPopupScrollMenu:onDestroy()
if currentMenu == self then
currentMenu = nil
end
self:ungrabMouse()
end
function UIPopupScrollMenu:onMousePress(mousePos, mouseButton)
-- clicks outside menu area destroys the menu
if not self:containsPoint(mousePos) then
self:destroy()
end
return true
end
function UIPopupScrollMenu:onKeyPress(keyCode, keyboardModifiers)
if keyCode == KeyEscape then
self:destroy()
return true
end
return false
end
-- close all menus when the window is resized
local function onRootGeometryUpdate()
if currentMenu then
currentMenu:destroy()
end
end
connect(rootWidget, { onGeometryChange = onRootGeometryUpdate} )