fix: scale aspect ratio correctly, fix tmux split (#64)

lua/image/backends/kitty/init.lua

@@ -25,20 +25,6 @@ backend.setup = function(state)
 
   if state.options.kitty_method == "unicode-placeholders" then backend.features.crop = false end
 
-  vim.api.nvim_create_autocmd("VimResized", {
-    callback = function()
-      transmitted_images = {}
-      vim.defer_fn(function()
-        for _, image in pairs(backend.state.images) do
-          if image.is_rendered then
-            image.is_rendered = false
-            image:render()
-          end
-        end
-      end, 0)
-    end,
-  })
-
   vim.api.nvim_create_autocmd("VimLeavePre", {
     callback = function()
       backend.clear()

lua/image/image.lua

@@ -33,7 +33,16 @@ function Image:render(geometry)
   -- utils.debug(("---------------- %s ----------------"):format(self.id))
   local was_rendered = renderer.render(self)
 
-  -- utils.debug( ("[image] render: %s, success: %s x: %s, y: %s, width: %s, height: %s"):format( self.id, was_rendered, self.geometry.x, self.geometry.y, self.geometry.width, self.geometry.height))
+  -- utils.debug(
+  --   ("[image] render: %s, success: %s x: %s, y: %s, width: %s, height: %s"):format(
+  --     self.id,
+  --     was_rendered,
+  --     self.geometry.x,
+  --     self.geometry.y,
+  --     self.geometry.width,
+  --     self.geometry.height
+  --   )
+  -- )
 
   -- clear if already rendered but rendering this should be prevented
   if self.is_rendered and not was_rendered then

lua/image/renderer.lua

@@ -17,7 +17,13 @@ local render = function(image)
   local image_rows = math.floor(image.image_height / term_size.cell_height)
   local image_columns = math.floor(image.image_width / term_size.cell_width)
 
-  -- utils.debug(("renderer.render() %s %d"):format(image.id, image.internal_id))
+  -- utils.debug(("renderer.render() %s"):format(image.id), {
+  --   id = image.id,
+  --   x = image.geometry.x,
+  --   y = image.geometry.y,
+  --   width = image.geometry.width,
+  --   height = image.geometry.height,
+  -- })
 
   local original_x = image.geometry.x or 0
   local original_y = image.geometry.y or 0
@@ -115,10 +121,11 @@ local render = function(image)
 
     -- global max window width/height percentage
     if type(state.options.max_width_window_percentage) == "number" then
-      width = math.min(width, math.floor(window.width * state.options.max_width_window_percentage / 100))
+      width = math.min(width, math.floor((window.width - x_offset) * state.options.max_width_window_percentage / 100))
     end
     if type(state.options.max_height_window_percentage) == "number" then
-      height = math.min(height, math.floor(window.height * state.options.max_height_window_percentage / 100))
+      height =
+        math.min(height, math.floor((window.height - y_offset) * state.options.max_height_window_percentage / 100))
     end
   end
 
@@ -254,6 +261,7 @@ local render = function(image)
 
   -- compute final geometry and prevent useless rerendering
   local rendered_geometry = { x = absolute_x, y = absolute_y, width = width, height = height }
+  -- utils.debug("rendered_geometry", rendered_geometry)
 
   -- handle crop/resize
   local pixel_width = width * term_size.cell_width

lua/image/utils/math.lua

@@ -11,12 +11,12 @@ local adjust_to_aspect_ratio = function(term_size, image_width, image_height, wi
   local percent_orig_height = pixel_height / image_height
 
   if width == 0 and height ~= 0 then
-    width = math.floor(height * aspect_ratio)
+    width = math.floor(pixel_height / term_size.cell_width * aspect_ratio)
     return width, height
   end
 
   if height == 0 and width ~= 0 then
-    height = math.floor(width / aspect_ratio)
+    height = math.floor(pixel_width / term_size.cell_height / aspect_ratio)
     return width, height
   end