feat(png.py): Add optional args to PNGSaveOptions

Additionally added stronger type hinting, matching types accurately to Adobe scripting documentation

Signed-off-by: MrTeferi <freethoughtleft@gmail.com>

Author: Investigamer

.pre-commit-config.yaml

@@ -16,7 +16,7 @@ repos:
   - additional_dependencies:
     - flake8-typing-imports==1.5.0
     id: flake8
-  repo: https://gitlab.com/pycqa/flake8
+  repo: https://github.com/pycqa/flake8
   rev: 3.7.9
 - hooks:
   - id: autopep8

photoshop/api/save_options/png.py

@@ -1,19 +1,21 @@
 # Import local modules
 from photoshop.api._core import Photoshop
+from photoshop.api.enumerations import ColorReductionType
+from photoshop.api.enumerations import DitherType
 
 
 class ExportOptionsSaveForWeb(Photoshop):
     """Options for exporting Save For Web files."""
 
-    object_name = "ExportOptionsSaveForWeb"
+    object_name = 'ExportOptionsSaveForWeb'
 
     def __init__(self):
         super().__init__()
         self.format = 13  # PNG
         self.PNG8 = False  # Sets it to PNG-24 bit
 
     @property
-    def PNG8(self):
+    def PNG8(self) -> bool:
         """If true, uses 8 bits. If false, uses 24 bits. Valid only when ‘format’ = PNG."""
         return self.app.PNG8
 
@@ -22,41 +24,44 @@ def PNG8(self, value: bool):
         self.app.PNG8 = value
 
     @property
-    def blur(self):
+    def blur(self) -> float:
+        """Applies blur to the image to reduce artifacts."""
         return self.app.blur
 
     @blur.setter
-    def blur(self, value):
+    def blur(self, value: float):
         self.app.blur = value
 
     @property
-    def colorReduction(self):
+    def colorReduction(self) -> ColorReductionType:
+        """The color reduction algorithm."""
         return self.app.colorReduction
 
     @colorReduction.setter
-    def colorReduction(self, value):
+    def colorReduction(self, value: ColorReductionType):
         self.app.colorReduction = value
 
     @property
-    def colors(self):
+    def colors(self) -> int:
         """The number of colors in the palette."""
         return self.app.colors
 
     @colors.setter
-    def colors(self, value):
-        """The number of colors in the palette."""
+    def colors(self, value: int):
         self.app.colors = value
 
     @property
-    def dither(self):
+    def dither(self) -> DitherType:
+        """The type of dither to use."""
         return self.app.dither
 
     @dither.setter
-    def dither(self, value):
+    def dither(self, value: DitherType):
         self.app.dither = value
 
     @property
-    def quality(self):
+    def quality(self) -> int:
+        """The quality of the output image, from 0 to 100."""
         return self.app.quality
 
     @quality.setter
@@ -65,12 +70,14 @@ def quality(self, value: int):
 
 
 class PNGSaveOptions(Photoshop):
-    object_name = "PNGSaveOptions"
+    """Options for saving file as PNG."""
 
-    def __init__(self):
+    object_name = 'PNGSaveOptions'
+
+    def __init__(self, interlaced: bool = False, compression: int = 6):
         super().__init__()
-        self.interlaced = False
-        self.compression = 6
+        self.interlaced = interlaced
+        self.compression = compression
 
     @property
     def interlaced(self) -> bool: