144 lines
4.3 KiB
Lua
144 lines
4.3 KiB
Lua
-- flowbox :: flexible box menu, that handle in grid the 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('%.flowbox$', '') .. "."
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local Menu = require(cwd .. "parent")
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local FlowBox = Menu:extend()
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local View2D = require(cwd .. "views.view2D")
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-- INIT FUNCTIONS
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-- Initialize and configure the flowbox
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function FlowBox:new(name, x, y, w, h, slots_hor, slots_vert)
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self.view = View2D(slots_hor, slots_vert)
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FlowBox.super.new(self, name, x, y, w, h)
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self:setRealSize()
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end
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function FlowBox:setRealSize()
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-- On fait en sorte que la hauteur et la largeur
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-- soit un multiple du nombre de slot et de leur dimensions
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self:updateWidgetSize()
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self.w = self.view.colNumber * self.widgetSize.w
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self.h = self.view.lineNumber * self.widgetSize.h
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end
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function FlowBox:resetView()
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self.view:reset()
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end
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-- UPDATE FUNCTIONS
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-- Update the menu and its view
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function FlowBox:updateWidgetSize()
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self.widgetSize.h = math.floor( self.h / self.view.lineNumber )
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self.widgetSize.w = math.floor( self.w / self.view.colNumber )
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end
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function FlowBox:update(dt)
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self.view:updateFirstSlot(self.widget:getSelected())
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end
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-- CURSOR FUNCTIONS
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-- Handle the cursor in a 2D menu
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function FlowBox:moveCursor2D(new_col, new_line)
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local lastcol, lastline = self.view:getCoord(self.widget:lenght())
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new_line = utils.math.wrapAndLimit(new_line, 0, lastline)
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if (new_line == lastline) then
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new_col = utils.math.wrapAndLimit(new_col, 0, lastcol)
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else
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new_col = utils.math.wrapAndLimit(new_col, 0, (self.view.colNumber - 1))
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end
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self.widget:moveCursor((new_line * self.view.colNumber) + new_col + 1)
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end
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-- KEYS FUNCTIONS
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-- Handle the keyboard/controller inputs
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function FlowBox:moveByKeys(key)
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local col, line = self.view:getCoord(self.widget:getSelected())
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if key == 'left' then
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self:moveCursor2D(col - 1, line)
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end
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if key == 'right' then
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self:moveCursor2D(col + 1, line)
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end
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if key == 'up' then
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self:moveCursor2D(col, line - 1)
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end
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if key == 'down' then
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self:moveCursor2D(col, line + 1)
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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 FlowBox:getWidgetAtPoint(x, y)
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local col = math.floor(x / self.widgetSize.w)
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local line = math.floor(y / self.widgetSize.h)
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return self.view:getFromCoord(col, line)
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end
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-- DRAW FUNCTIONS
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-- Draw the menu and its content
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function FlowBox:draw()
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self.view:updateFirstSlot(self.widget:getSelected())
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local widgety = self.y
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local widgetx = self.x
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local listWidget = self.widget:getList(self.view.firstSlot, self.view.slotNumber)
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for _, widget in ipairs(listWidget) do
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widget:drawWidget(widgetx, widgety, self.w, self.widgetSize.h)
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-- On calcule la position du prochain widget
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widgetx = widgetx + self.widgetSize.w
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if widgetx >= (self.x + self.w) then
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widgetx = self.x
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widgety = widgety + self.widgetSize.h
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end
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end
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end
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function FlowBox:getGraphicalCursorPosition()
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self.view:updateFirstSlot(self.widget:getSelected())
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local _, beginline = self.view:getCoord(self.view.firstSlot)
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local w, h = self:getWidgetSize()
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local col, line = self.view:getCoord(self.widget:getSelected())
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local x = (col) * h
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local y = (line - beginline) * h
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return self.x + x, self.y + y, w, h
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end
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return FlowBox
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