improvement: port confirmdialog to Gui

sonic-radiance.love/game/modules/confirmdialog/init.lua

@@ -1,14 +1,16 @@
-local ConfirmDialog = Object:extend()
+local GuiElement = require "birb.modules.gui.elements.canvas"
+local ConfirmDialog = GuiElement:extend()
 
 local gui = require "game.modules.gui"
 
 local WIDTH = 256
 local PADWIDTH = 16
 local PADHEIGHT = 16
+local DEFAULT_LINES = 2
 
 function ConfirmDialog:new(scene, message, choice1func, choice1, choice2func, choice2)
     self.scene = scene
-    self.lines = 2
+    self.lines = DEFAULT_LINES
     self.message = message
 
     self.choiceLabel = {}
@@ -26,50 +28,43 @@ function ConfirmDialog:new(scene, message, choice1func, choice1, choice2func, ch
 
     self.currentChoice = 0
     self.cancelChoice = -1
-    self.isActive = false
 
-    self.scene.dialog = self
+    ConfirmDialog.super.new(self, "dialog", 424/2, 240/2, WIDTH + PADWIDTH, self:computeHeight())
-    self.texture = self:createTexture()
+    self.back = gui.newTextBox("assets/gui/dialogbox.png", self.w, self.h)
+    self.ox = self.w/2
+    self.oy = self.h/2
+    self.canvas.padding = 0
+    self.depth = 0
+    self.isVisible = 1
+    self:getFocus()
 end
 
 function ConfirmDialog:setLines(lines)
     self.lines = lines
-    self.texture = self:createTexture()
+    self.h = self:computeHeight()
+    self.oy = self.h/2
+    self.canvas.needRedraw = true
+    self.back = gui.newTextBox("assets/gui/dialogbox.png", self.w, self.h)
 end
 
-function ConfirmDialog:createTexture()
+function ConfirmDialog:computeHeight()
-    self.height = 32 + (self.lines * 16) + PADHEIGHT
+    return 32 + (self.lines * 16) + PADHEIGHT
-    return gui.newTextBox("assets/gui/dialogbox.png", WIDTH + PADWIDTH, self.height)
 end
 
 function ConfirmDialog:setCancelChoice(choice)
     self.cancelChoice = choice - 1
 end
 
-function ConfirmDialog:update(dt)
+function ConfirmDialog:keypressed(key)
-    if (self.isActive) then
+    if (key == "up" or key == "down") then
-        self:keycheck()
-    else
-        self.isActive = true
-    end
-end
-
-function ConfirmDialog:keycheck()
-    local keys = self.scene.sources[1].keys
-    if (keys["up"].isPressed or
-    self.scene.sources[1].keys["down"].isPressed) then
         self.currentChoice = (self.currentChoice + 1) % 2
         self.scene.assets.sfx["mBeep"]:play()
-    end
+        self.canvas.needRedraw = true
-
+    elseif (key == "A") then
-    if (keys["A"].isPressed) then
         self:doAction(self.currentChoice)
-    end
+    elseif (key == "B") then
-
-    if (keys["B"].isPressed) then
         self:doAction(self.cancelChoice)
     end
-
 end
 
 function ConfirmDialog:doAction(choice)
@@ -83,33 +78,21 @@ function ConfirmDialog:doAction(choice)
 end
 
 function ConfirmDialog:dismiss()
+    local guiSystem = self:getGui()
+    guiSystem:setLastFocus()
     self:destroy()
 end
 
-function ConfirmDialog:destroy()
+function ConfirmDialog:drawTexture()
-    self.scene.dialog = nil
+    love.graphics.draw(self.back, 0)
-end
-
-function ConfirmDialog:draw()
-    local x, y = self:getCoord()
     local padx, pady = 8, 6
-    if (self.darken) then
+    self.scene.assets.fonts["small"]:draw(self.message ,padx, pady, WIDTH,"left")
-        love.graphics.setColor(0,0,0,0.5)
-        love.graphics.rectangle("fill", 0, 0, 424, 240)
-        utils.graphics.resetColor()
-    end
-    love.graphics.draw(self.texture, x, y)
-    self.scene.assets.fonts["small"]:draw(self.message ,x + padx, y + pady,WIDTH,"left")
     for i = 1, 2, 1 do
-        self.scene.assets.fonts["small"]:draw(self.choiceLabel[i], x + padx + 8, y + pady + (self.lines + i - 1)*16)
+        self.scene.assets.fonts["small"]:draw(self.choiceLabel[i], padx + 8, pady + (self.lines + i - 1)*16)
         if ((self.currentChoice + 1) == i) then
-            self.scene.assets.fonts["small"]:draw(">", x + padx, y + pady + (self.lines + i - 1)*16)
+            self.scene.assets.fonts["small"]:draw(">", padx, pady + (self.lines + i - 1)*16)
         end
     end
 end
 
-function ConfirmDialog:getCoord()
-    return (424-(WIDTH + PADWIDTH))/2, (240 - self.height)/2
-end
-
 return ConfirmDialog