106 lines
3.2 KiB
Lua
106 lines
3.2 KiB
Lua
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-- listbox : add a vertical list of widgets.
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--[[
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Copyright © 2019 Kazhnuz
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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]]
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local cwd = (...):gsub('%.listbox$', '') .. "."
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local Menu = require(cwd .. "parent")
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local ListBox = Menu:extend()
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local View1D = require(cwd .. "views.view1D")
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-- INIT FUNCTIONS
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-- Initialize and configure functions.
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function ListBox:new(name, x, y, w, h, slotNumber)
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self.view = View1D(slotNumber)
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ListBox.super.new(self, name, x, y, w, h)
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self.h = slotNumber * self.widgetSize.h -- On fait en sorte que la hauteur
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-- soit un multiple du nombre de slot et de leur hauteur
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end
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-- UPDATE FUNCTIONS
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-- Update the menu every step.
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function ListBox:updateWidgetSize()
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self.widgetSize.h = math.floor( self.h / self.view.slotNumber )
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self.widgetSize.w = self.w
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end
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function ListBox:update(dt)
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self.view:updateFirstSlot(self.widget:getSelected())
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end
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function ListBox:resetView()
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self.view:reset()
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end
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-- KEYBOARD FUNCTIONS
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-- Handle input from keyboard/controllers.
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function ListBox:moveByKeys(key)
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if key == 'up' then
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self.widget:moveCursor(-1)
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self:playNavigationSound()
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self.canvas.needRedraw = true
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end
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if key == 'down' then
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self.widget:moveCursor(1)
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self:playNavigationSound()
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self.canvas.needRedraw = true
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end
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end
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-- POSITION FUNCTIONS
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-- Get a widget by a position.
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function ListBox:getWidgetAtPoint(x, y)
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return (self.view.firstSlot + math.floor(y / self.widgetSize.h))
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end
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-- DRAW FUNCTIONS
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-- draw the menu and the rest of content.
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function ListBox:getListPart(relativeNumber)
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return 0, (relativeNumber) * self.widgetSize.h, self.w, self.widgetSize.h
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end
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function ListBox:drawTexture()
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self.view:updateFirstSlot(self.widget:getSelected())
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local listWidget = self.widget:getList(self.view.firstSlot, self.view.slotNumber)
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for i, widget in ipairs(listWidget) do
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local x, y, w, h = self:getListPart(i - 1)
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self:drawWidgetBackground(x + self.canvas.padding, y + self.canvas.padding, w, h)
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widget:drawWidget(x + self.canvas.padding, y + self.canvas.padding, w, h)
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end
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end
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function ListBox:getGraphicalCursorPosition()
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local x, y, w, h = self:getListPart(self.widget:getSelected() - self.view.firstSlot)
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return self.x - self.ox + x,self.y + y - self.oy, w, h
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end
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return ListBox
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