307 q library filtering fix (#940)

* Fix for layout of the GDS/Q3D export window in the gui

Issue #549
#549

The scaling for the GDS/Q3D/HFSS dialogs should be fixed now.

* Fix for QComponents Widget Sort & Filter

Wrapped the The components table in a QSortFilterProxyModel for sorting, filtering, plus

Added a textChanged event to the filter box to display only specific items.

#45

* Revert "Fix for layout of the GDS/Q3D export window in the gui"

This reverts commit a25450a.

* Update for lint test failures

Run yapf on all files plus a few method updates in the filter/sort logic.

* Fix for QLibrary Filtering #307

Issue #307

* Update for issuecomment-1540641146

Update for comment
#940 (comment)

This bug is really though :(

---------

Co-authored-by: Priti Ashvin Shah <74020801+priti-ashvin-shah-ibm@users.noreply.github.com>

qiskit_metal/_gui/main_window.py

@@ -657,6 +657,8 @@ def _setup_library_widget(self):
         #QSortFilterProxyModel: sorting items, filtering out items, or both.  maps the original model indexes to new indexes, allows a given source model to be restructured as far as views are concerned without requiring any transformations on the underlying data, and without duplicating the data in memory.
         dock.proxy_library_model = LibraryFileProxyModel()
         dock.proxy_library_model.setSourceModel(dock.library_model)
+        dock.proxy_library_model.setFilterCaseSensitivity(Qt.CaseInsensitive)
+        dock.proxy_library_model.setRecursiveFilteringEnabled(True)
 
         # --------------------------------------------------
         # View
@@ -686,6 +688,30 @@ def _setup_library_widget(self):
             dock.proxy_library_model.mapFromSource(
                 dock.library_model.index(stringLibraryRootPath)))
 
+        # Add a text changed event to the filter text box
+        self.ui.dockLibrary_filter.textChanged.connect(
+            self.dockLibrary_filter_onChanged)
+
+    def dockLibrary_filter_onChanged(self, text):
+        """ Text changed event for filter_text_design
+        Args:
+            text: Text typed in the filter box.
+        """
+        view = self.ui.dockLibrary_tree_view
+        dock = self.ui.dockLibrary
+        dock.proxy_library_model.filter_text = text
+
+        dock.proxy_library_model.setFilterWildcard(text)
+
+        view.setRootIndex(
+            dock.proxy_library_model.mapFromSource(
+                dock.library_model.index(dock.library_model.rootPath())))
+
+        if len(text) >= 1 and dock.proxy_library_model.rowCount() > 0:
+            view.expandAll()
+        else:
+            view.collapseAll()
+
     ################################################
     # UI
     def toggle_docks(self, do_hide: bool = None):

qiskit_metal/_gui/widgets/qlibrary_display/proxy_model_qlibrary.py

@@ -18,7 +18,7 @@
 import typing
 
 from PySide2.QtCore import QModelIndex, QSortFilterProxyModel, Qt, QSize
-from PySide2.QtWidgets import QWidget
+from PySide2.QtWidgets import QWidget, QFileSystemModel
 
 
 class LibraryFileProxyModel(QSortFilterProxyModel):
@@ -39,6 +39,7 @@ def __init__(self, parent: QWidget = None):
         # (QComponent files) OR (Directories)
         self.accepted_files__regex = r"(^((?!\.))(?!base)(?!__init__)(?!_template)(?!_parsed)(?!__pycache__).*\.py)|(?!__pycache__)(^([^.]+)$)"  # pylint: disable=line-too-long
         self.setFilterRegExp(self.accepted_files__regex)
+        self.filter_text = ""
 
     def filterAcceptsColumn(
             self, source_column: int, source_parent: QModelIndex) -> bool:  #pylint: disable=unused-argument
@@ -57,6 +58,35 @@ def filterAcceptsColumn(
             return False
         return True
 
+    def filterAcceptsRow(
+            self, source_row: int, source_parent: QModelIndex) -> bool:  #pylint: disable=unused-argument
+        """
+        Filters out unwanted file information in display
+        Args:
+            source_column(int): Display column in question
+            source_parent(QModelIndex): Parent index
+        Returns:
+            bool: Whether to display column
+
+        """
+        source_model = self.sourceModel()
+        nameCache = source_model.nameCache
+
+        index = source_model.index(source_row, 0, source_parent)
+        relativeFilename = index.data(QFileSystemModel.FileNameRole)
+        displayName = nameCache[
+            relativeFilename] if relativeFilename in nameCache else None
+        #fi = source_model.fileInfo(index)
+
+        if displayName != None:
+            found = (self.filter_text in relativeFilename) or (self.filter_text
+                                                               in displayName)
+        else:
+            found = (self.filter_text in relativeFilename)
+
+        accept = (not relativeFilename.startswith("_")) and found
+        return accept
+
     def data(self,
              index: QModelIndex,
              role: int = Qt.DisplayRole) -> typing.Any: