Fixed bugs

operators/pngquant.py

@@ -2,29 +2,20 @@
 import os
 from bpy.props import *
 from subprocess import call
-from .. icons import get_icon_id
 
 
 class OpenBrowser(bpy.types.Operator):
     bl_idname = 'smc.compress'
     bl_label = 'Compress all textures'
 
-    def show_message(self, context):
-        def draw(self, context):
-            layout = self.layout
-            col = layout.column()
-            col.operator('smc.zip_download', icon_value=get_icon_id('null')
-                         ).link = 'https://pngquant.org/pngquant-windows.zip'
-        context.window_manager.popup_menu(draw, title='Pngquant is not installed', icon='INFO')
-
     def execute(self, context):
         scn = context.scene
         pngquant = os.path.abspath(
             os.path.join(os.path.dirname(os.path.abspath(__file__)), os.pardir, 'assets', 'pngquant', 'pngquant.exe'))
-        if os.path.isfile(os.path.join(pngquant)):
-            command = '"{}" -f --ext .png --skip-if-larger -v "{}"'.format(pngquant, scn.smc_save_path)
-            call(command, shell=True)
-            self.report({'INFO'}, 'Files compressed')
-        else:
-            self.show_message(context)
+        if not os.path.isfile(os.path.join(pngquant)):
+            bpy.ops.smc.zip_download(link='https://pngquant.org/pngquant-windows.zip')
+        command = '"{}" -f --ext .png --skip-if-larger -v "{}"'.format(pngquant, scn.smc_save_path)
+        call(command, shell=True)
+        self.report({'INFO'}, 'Files compressed')
+
         return {'FINISHED'}