Merge pull request #248 from b0o/feat-specify-max-size-percentage

feat: allow passing max_{width,height}_window_percentage to image factory

lua/image/image.lua

@@ -273,6 +273,8 @@ local from_file = function(path, options, state)
         original_path = instance.original_path,
         image_width = instance.image_width,
         image_height = instance.image_height,
+        max_width_window_percentage = instance.max_width_window_percentage,
+        max_height_window_percentage = instance.max_height_window_percentage,
         window = opts.window or nil,
         buffer = opts.buffer or nil,
         geometry = {
@@ -329,6 +331,8 @@ local from_file = function(path, options, state)
     original_path = path,
     image_width = dimensions.width,
     image_height = dimensions.height,
+    max_width_window_percentage = opts.max_width_window_percentage,
+    max_height_window_percentage = opts.max_height_window_percentage,
     window = opts.window or nil,
     buffer = opts.buffer or nil,
     geometry = {

lua/image/renderer.lua

@@ -117,20 +117,20 @@ local render = function(image)
     bounds.right = bounds.right
     if utils.offsets.get_border_shape(window.id).left > 0 then bounds.right = bounds.right + 1 end
 
-    -- global max window width/height percentage
-    if type(state.options.max_width_window_percentage) == "number" then
+    local max_width_window_percentage = image.max_width_window_percentage or state.options.max_width_window_percentage
+    local max_height_window_percentage = image.max_height_window_percentage
+      or state.options.max_height_window_percentage
+
+    if type(max_width_window_percentage) == "number" then
       width = math.min(
         -- original
         width,
         -- max_window_percentage
-        math.floor((window.width - global_offsets.x) * state.options.max_width_window_percentage / 100)
+        math.floor((window.width - global_offsets.x) * max_width_window_percentage / 100)
       )
     end
-    if type(state.options.max_height_window_percentage) == "number" then
-      height = math.min(
-        height,
-        math.floor((window.height - global_offsets.y) * state.options.max_height_window_percentage / 100)
-      )
+    if type(max_height_window_percentage) == "number" then
+      height = math.min(height, math.floor((window.height - global_offsets.y) * max_height_window_percentage / 100))
     end
   end
 

lua/types.lua

@@ -67,6 +67,8 @@
 ---@field with_virtual_padding? boolean
 ---@field inline? boolean
 ---@field namespace? string
+---@field max_width_window_percentage? number
+---@field max_height_window_percentage? number
 
 ---@class ImageBounds
 ---@field top number
@@ -99,6 +101,8 @@
 ---@field original_path string
 ---@field image_width number
 ---@field image_height number
+---@field max_width_window_percentage? number
+---@field max_height_window_percentage? number
 ---@field window? number
 ---@field buffer? number
 ---@field with_virtual_padding? boolean