Draft: Display default file and pattern in hatch task panel

Fixes #18197.

src/Mod/Draft/draftguitools/gui_hatch.py

@@ -64,8 +64,8 @@ class Draft_Hatch_TaskPanel:
         self.form = FreeCADGui.PySideUic.loadUi(":/ui/dialogHatch.ui")
         self.form.setWindowIcon(QtGui.QIcon(":/icons/Draft_Hatch.svg"))
         self.form.File.fileNameChanged.connect(self.onFileChanged)
-        self.form.File.setFileName(params.get_param("FilePattern", path="Mod/TechDraw/PAT"))
-        pat = params.get_param("NamePattern", path="Mod/TechDraw/PAT")
+        self.form.File.setFileName(params.get_param("HatchPatternFile"))
+        pat = params.get_param("HatchPatternName")
         if pat in [self.form.Pattern.itemText(i) for i in range(self.form.Pattern.count())]:
             self.form.Pattern.setCurrentText(pat)
         self.form.Scale.setValue(params.get_param("HatchPatternScale"))
@@ -76,8 +76,8 @@ class Draft_Hatch_TaskPanel:
 
         import FreeCADGui
 
-        params.set_param("FilePattern", self.form.File.property("fileName"), path="Mod/TechDraw/PAT")
-        params.set_param("NamePattern", self.form.Pattern.currentText(), path="Mod/TechDraw/PAT")
+        params.set_param("HatchPatternFile", self.form.File.property("fileName"))
+        params.set_param("HatchPatternName", self.form.Pattern.currentText())
         params.set_param("HatchPatternScale", self.form.Scale.value())
         params.set_param("HatchPatternRotation", self.form.Rotation.value())
         if hasattr(self.baseobj,"File") and hasattr(self.baseobj,"Pattern"):

src/Mod/Draft/draftutils/params.py

@@ -23,6 +23,7 @@
 
 """ Contains a parameter observer class and parameter related functions."""
 
+import os
 import PySide.QtCore as QtCore
 import xml.etree.ElementTree as ET
 
@@ -372,6 +373,10 @@ def _get_param_dictionary():
 
     param_dict = {}
 
+    hatch_pattern_file = os.path.join(
+        App.getResourceDir().replace("\\", "/"), "Mod/TechDraw/PAT/FCPAT.pat"
+    )
+
     # Draft parameters that are not in the preferences:
     param_dict["Mod/Draft"] = {
         "AnnotationStyleEditorHeight": ("int",       450),
@@ -388,7 +393,9 @@ def _get_param_dictionary():
         "fillmode":                    ("bool",      True),
         "GlobalMode":                  ("bool",      False),
         "GridHideInOtherWorkbenches":  ("bool",      True),
-        "HatchPatternResolution":      ("int",       128),
+        "HatchPatternFile":            ("string",    hatch_pattern_file),
+        "HatchPatternName":            ("string",    "Diamant"),
+        "HatchPatternResolution":      ("int",       128),  # used for SVG patterns
         "HatchPatternRotation":        ("float",     0.0),
         "HatchPatternScale":           ("float",     100.0),
         "labeltype":                   ("string",    "Custom"),
@@ -482,12 +489,6 @@ def _get_param_dictionary():
         "MaxDeviationExport":          ("float",     0.1),
     }
 
-    # For the Mod/TechDraw/PAT parameters we do not check the preferences:
-    param_dict["Mod/TechDraw/PAT"] = {
-        "FilePattern":                 ("string",    ""),
-        "NamePattern":                 ("string",    "Diamant"),
-    }
-
     # For the General parameters we do not check the preferences:
     param_dict["General"] = {
         "ToolbarIconSize":             ("int",       24),