chalwheel: fixed calling CreateLabel every frame

scripts/songselect/chalwheel.lua

@@ -136,24 +136,51 @@ local resolutionChange = function(x, y)
     fullY = y
 end
 
-check_or_create_cache = function(challenge)
+local update_cache_labels = function(challenge, titleFontSize)
+    if challengeCache[challenge.id] then
+        local _, fontsize = gfx.LabelSize(challengeCache[challenge.id]["title"])
+        if fontsize ~= titleFontSize then
+            gfx.UpdateLabel(challengeCache[challenge.id]["title"], challengeCache[challenge.id]["title_raw"], titleFontSize)
+            for _, chart in ipairs(challengeCache[challenge.id]["charts"]) do
+                gfx.UpdateLabel(chart["title"], chart["title_raw"], titleFontSize)
+            end
+        end
+    end
+end
+
+local check_or_create_cache = function(challenge)
+    local defaultLabelSize = 16
+
     if not challengeCache[challenge.id] then
         challengeCache[challenge.id] = {}
     end
 
     if not challengeCache[challenge.id]["title"] then
-        challengeCache[challenge.id]["title"] = challenge.title
+        challengeCache[challenge.id]["title"] = gfx.CreateLabel(challenge.title, defaultLabelSize, 0)
+        challengeCache[challenge.id]["title_raw"] = challenge.title
     end
 
     if not challengeCache[challenge.id]["charts"] then
         if challenge.missing_chart then
             local missing_text = "*COULD NOT FIND ALL CHARTS!*"
-            challengeCache[challenge.id]["charts"] = { { ["title"] = missing_text, ["level"] = 0, ["difficulty"] = 0 } }
+            challengeCache[challenge.id]["charts"] = {
+                {
+                    ["title"] = gfx.CreateLabel(missing_text, defaultLabelSize, 0),
+                    ["title_raw"] = missing_text,
+                    ["level"] = 0,
+                    ["difficulty"] = 0
+                }
+            }
         end
 
         local charts = {}
         for _, chart in ipairs(challenge.charts) do
-            table.insert(charts, { ["title"] = chart.title, ["level"] = chart.level, ["difficulty"] = chart.difficulty })
+            table.insert(charts, {
+                ["title"] = gfx.CreateLabel(chart.title, defaultLabelSize, 0),
+                ["title_raw"] = chart.title,
+                ["level"] = chart.level,
+                ["difficulty"] = chart.difficulty
+            })
         end
         challengeCache[challenge.id]["charts"] = charts
     end
@@ -220,13 +247,14 @@ draw_challenge = function(challenge, x, y, w, h, selected)
             titleBaselineY = y + 0.09 * h -- align baseline
         end
 
+        update_cache_labels(challenge, titleFontSize)
+
         gfx.BeginPath()
         gfx.ImageRect(stateOffsetX, stateOffsetY, stateWidth, stateHeight, stateLabel, 1, 0)
 
-        local titleLabel = gfx.CreateLabel(challengeCache[challenge.id]["title"], titleFontSize, 0)
         gfx.FontFace("divlit_custom.ttf")
         gfx.TextAlign(gfx.TEXT_ALIGN_CENTER | gfx.TEXT_ALIGN_BASELINE)
-        gfx.DrawLabel(titleLabel, titleCenterX, titleBaselineY, titleMaxWidth)
+        gfx.DrawLabel(challengeCache[challenge.id]["title"], titleCenterX, titleBaselineY, titleMaxWidth)
     end
 
     local _draw_jacket = function()
@@ -303,7 +331,6 @@ draw_challenge = function(challenge, x, y, w, h, selected)
         local offsetY = y + 0.246 * h
 
         local titleMargin = 6
-        local titleFontSize = math.floor(0.11 * h) -- must be an integer
         local titleMaxWidth = 6 / 9 * w
         local titleCenterX = x + w - titleMargin - titleMaxWidth / 2 -- align right
 
@@ -326,9 +353,8 @@ draw_challenge = function(challenge, x, y, w, h, selected)
 
             draw_diff_icon(chart, offsetX, ypos, diffIconWidth, diffIconHeight, selected)
 
-            local chartTitleLabel = gfx.CreateLabel(chart.title, titleFontSize, 0)
             gfx.TextAlign(gfx.TEXT_ALIGN_CENTER | gfx.TEXT_ALIGN_MIDDLE)
-            gfx.DrawLabel(chartTitleLabel, titleCenterX, ypos + diffIconHeight / 2, titleMaxWidth)
+            gfx.DrawLabel(chart.title, titleCenterX, ypos + diffIconHeight / 2, titleMaxWidth)
         end
     end