core/menusystem: add cursor in gridbox

sonic-boost.love/core/modules/menusystem/grid.lua

@@ -3,13 +3,15 @@ local Menu = require(cwd .. "parent")
 
 local GridBox = Menu:extend()
 
+local menuutils = require(cwd .. "widgets.utils")
+
 function GridBox:new(menusystem, name, x, y, w, h, colNumber, lineNumber)
   self.view = {}
   self.view.slotNumber  = colNumber * lineNumber
   self.view.colNumber   = colNumber
   self.view.lineNumber  = lineNumber
+  self.view.firstSlot = 1
   GridBox.super.new(self, menusystem, name, x, y, w, h)
-  self.begin = 1
   self.h = lineNumber * self.widget.h -- On fait en sorte que la hauteur
   self.w = colNumber  * self.widget.w -- et la largeur
   -- soit un multiple du nombre de slot et de leur dimensions
@@ -39,6 +41,19 @@ function GridBox:getWidgetSize(id)
   return self.widget.w * self.slots[slot].width, self.widget.h * self.slots[slot].height
 end
 
+function GridBox:getWidgetID(slot)
+  if (self.slots[slot].isChild == 0) then
+    return self.slots[slot].widgetID
+  else
+    return self.slots[self.slots[slot].isChild].widgetID
+  end
+end
+
+function GridBox:haveWidget(slot)
+  local id = self:getWidgetID(slot)
+  return self.widget.list[id] ~= nil
+end
+
 function GridBox:getWidgetSlot(widgetID)
   local slot = 0
   for i,v in ipairs(self.slots) do
@@ -51,7 +66,7 @@ function GridBox:getWidgetSlot(widgetID)
 end
 
 function GridBox:update(dt)
-  self.begin = 1
+  self.view.firstSlot = 1
   local slotID = self:getSlotbyCoord(self.cursor.x, self.cursor.y)
   if self.slots[slotID].isChild > 0 then
     slotID = self.slots[slotID].isChild
@@ -173,14 +188,21 @@ end
 
 function GridBox:mousemoved(x, y)
   local col, line = self:getCoord(self.widget.selected)
-  local begincol, beginline = self:getCoord(self.begin)
+  local begincol, beginline = self:getCoord(self.view.firstSlot)
   local newcol, newline
   local newselect, slotID
 
   newline = beginline + math.floor(y / self.widget.h)
   newcol  = math.floor(x / self.widget.w)
+  newselect = (newline * self.view.colNumber) + newcol + 1
+
+  if self:haveWidget(newselect) then
     self.cursor.x = newcol
     self.cursor.y = newline
+  end
+  print(self:haveWidget(newselect), newselect)
+
+  self:getFocus()
 
   if self.widget.selected < 1 then
     self.widget.selected = 1
@@ -193,7 +215,7 @@ end
 
 function GridBox:mousepressed(x, y, button, isTouch)
   local col, line = self:getCoord(self.widget.selected)
-  local begincol, beginline = self:getCoord(self.begin)
+  local begincol, beginline = self:getCoord(self.view.firstSlot)
   local newcol, newline
   local newselect, slotID
 
@@ -201,6 +223,8 @@ function GridBox:mousepressed(x, y, button, isTouch)
   newcol  = math.floor(x / self.widget.w)
   newselect = (newline * self.view.colNumber) + newcol + 1
 
+  self:getFocus()
+
   if self.slots[newselect].isChild > 0 then
     slotID = self.slots[newselect].isChild
   else
@@ -249,4 +273,16 @@ function GridBox:draw()
   end
 end
 
+function GridBox:drawCursor()
+  self:updateView()
+  local begincol, beginline = self:getCoord(self.view.firstSlot)
+  if (self.widget.selected >= 1 and self.widget.selected <= #self.widget.list) then
+    local w, h  = self:getWidgetSize(self.widget.selected)
+    local col, line = self:getCoord(self.widget.selected)
+    local x     = (col) * h
+    local y     = (line - beginline) * h
+    menuutils.drawCursor(self.x + x, self.y + y, w, h)
+  end
+end
+
 return GridBox