Add Sta (static) preview mode: shows raw sprite canvas

- Preview mode now cycles All → One → Sta
- Sta mode renders the full sprite without animations, with its own zoom
- Fit button disabled in Sta mode
- Mode toggle no longer closes/reopens window (preserves position)

aniphallow.lua

@@ -47,6 +47,7 @@ local S = {
     animSpeed    = DEFAULT_ANIM_SPEED,
     previewZoomAll = DEFAULT_PREVIEW_ZOOM,
     previewZoomOne = DEFAULT_PREVIEW_ZOOM,
+    previewZoomSta = DEFAULT_PREVIEW_ZOOM,
     sourceZoom   = DEFAULT_SOURCE_ZOOM,
     animFrame    = 0,
     currentAnim  = 1,       -- index into animNames
@@ -115,7 +116,7 @@ local S = {
     -- Preview layout configuration
     previewLayout      = "auto",      -- "auto", "fixedCols", "fixedRows"
     previewLayoutValue = 2,           -- number for fixed cols/rows
-    previewMode        = "all",       -- "all" or "single"
+    previewMode        = "all",       -- "all", "single", or "static"
     previewSingleIdx   = 1,           -- which animation to show in single mode
     -- Current preset
     currentPreset      = "Default",
@@ -412,6 +413,7 @@ local function saveMaster()
     f:write("previewMode=" .. S.previewMode .. "\n")
     f:write("previewZoomAll=" .. S.previewZoomAll .. "\n")
     f:write("previewZoomOne=" .. S.previewZoomOne .. "\n")
+    f:write("previewZoomSta=" .. S.previewZoomSta .. "\n")
     f:write("previewSingleIdx=" .. S.previewSingleIdx .. "\n")
     -- File associations
     for filepath, preset in pairs(filePresetMap) do
@@ -439,6 +441,7 @@ local function loadMaster()
             if k == "previewMode" then S.previewMode = v end
             if k == "previewZoomAll" then S.previewZoomAll = tonumber(v) or DEFAULT_PREVIEW_ZOOM end
             if k == "previewZoomOne" then S.previewZoomOne = tonumber(v) or DEFAULT_PREVIEW_ZOOM end
+            if k == "previewZoomSta" then S.previewZoomSta = tonumber(v) or DEFAULT_PREVIEW_ZOOM end
             if k == "previewSingleIdx" then S.previewSingleIdx = tonumber(v) or 1 end
             if k == "presetNames" and v ~= "" then
                 knownPresetNames = {}
@@ -750,6 +753,7 @@ end
 -- Get current preview zoom based on mode
 local function pvZoom()
     if S.previewMode == "single" then return S.previewZoomOne end
+    if S.previewMode == "static" then return S.previewZoomSta end
     return S.previewZoomAll
 end
 
@@ -1303,6 +1307,13 @@ openPreviewWindow = function()
     -- calcPreviewSize helper
     local function calcPreviewSize()
         local z = pvZoom()
+        if S.previewMode == "static" then
+            -- Static mode: show full sprite canvas
+            if app.sprite then
+                return app.sprite.width * z, app.sprite.height * z
+            end
+            return 120, 40
+        end
         local ptw = S.tileW * z
         local pth = S.tileH * z
         local cellW = ptw + PV_MARGIN * 2
@@ -1345,9 +1356,15 @@ openPreviewWindow = function()
         end
     }
 
+    local function getModeLabel()
+        if S.previewMode == "single" then return "One"
+        elseif S.previewMode == "static" then return "Sta"
+        else return "All" end
+    end
+
     previewDlg:button{
         id = "pvToggleMode",
-        text = S.previewMode == "all" and "All" or "One",
+        text = getModeLabel(),
         onclick = function()
             if S.previewMode == "all" then
                 S.previewMode = "single"
@@ -1355,19 +1372,27 @@ openPreviewWindow = function()
                     if S.previewSingleIdx < 1 then S.previewSingleIdx = 1 end
                     if S.previewSingleIdx > #S.animNames then S.previewSingleIdx = #S.animNames end
                 end
+            elseif S.previewMode == "single" then
+                S.previewMode = "static"
             else
                 S.previewMode = "all"
             end
-            -- Close and reopen to resize canvas
+            -- Update button text, label visibility, and Fit enabled state
-            pcall(function() previewDlg:close() end)
+            pcall(function()
-            openPreviewWindow()
+                previewDlg:modify{ id = "pvToggleMode", text = getModeLabel() }
+                previewDlg:modify{ id = "pvAnimName", visible = (S.previewMode == "single") }
+                previewDlg:modify{ id = "pvFit", enabled = (S.previewMode ~= "static") }
+            end)
+            previewDlg:repaint()
         end
     }
 
     previewDlg:button{
         id = "pvFit",
         text = "Fit",
+        enabled = (S.previewMode ~= "static"),
         onclick = function()
+            if S.previewMode == "static" then return end
             -- Close and reopen to refit
             pcall(function() previewDlg:close() end)
             openPreviewWindow()
@@ -1381,6 +1406,26 @@ openPreviewWindow = function()
         autoscaling = false,
         onpaint = function(ev)
             local gc = ev.context
+
+            -- Static mode: render full sprite canvas
+            if S.previewMode == "static" then
+                if S.sourceImage then
+                    local z = pvZoom()
+                    local sw = S.sourceImage.width * z
+                    local sh = S.sourceImage.height * z
+                    if S.useBgColor then
+                        gc.color = S.bgColor
+                        gc:fillRect(Rectangle(0, 0, sw, sh))
+                    else
+                        drawCheckerboard(gc, sw, sh, z, 0, 0)
+                    end
+                    gc:drawImage(S.sourceImage,
+                        Rectangle(0, 0, S.sourceImage.width, S.sourceImage.height),
+                        Rectangle(0, 0, sw, sh))
+                end
+                return
+            end
+
             local na = #S.animNames
             if na == 0 then return end
 
@@ -1447,6 +1492,7 @@ openPreviewWindow = function()
             end
         end,
         onmousedown = function(ev)
+            if S.previewMode == "static" then return end
             -- In single mode: L-click=prev anim, R-click=next anim
             if S.previewMode == "single" then
                 if ev.button == MouseButton.LEFT then
@@ -1476,6 +1522,8 @@ openPreviewWindow = function()
             local dz = ev.deltaY < 0 and 1 or -1
             if S.previewMode == "single" then
                 S.previewZoomOne = math.max(1, math.min(MAX_PREVIEW_ZOOM, S.previewZoomOne + dz))
+            elseif S.previewMode == "static" then
+                S.previewZoomSta = math.max(1, math.min(MAX_PREVIEW_ZOOM, S.previewZoomSta + dz))
             else
                 S.previewZoomAll = math.max(1, math.min(MAX_PREVIEW_ZOOM, S.previewZoomAll + dz))
             end