Einfügen eines LineEdits

Einfügen von einem LineEdit oben im Widget, in das ein Dateipfad geschrieben werden kann. Alternativ kann über den Browse Button ein File Explorer geöffnet werden und in diesem die Datei ausgewählt werden. Der ausgewählte Dateipfad erscheint im LineEdit. Der Dateipfad im LineEdit kann über den Add Button in die Liste eingefügt werden. Nach betätigen des Add Buttons (nach wie vor Überprüfung, ob Dateipfad existiert und eventuell schon in Liste ist) wird das LineEdit geleert.

pylot/core/util/widgets.py

@@ -167,16 +167,29 @@ class AddMetadataWidget(QWidget):
         self.move(fm.topLeft())
 
     def setupUI(self):
+        self.init_lineedit()
         self.init_list_buttons_layout()
         self.init_add_remove_buttons()
         self.init_list_layout()
         self.init_accept_cancel_buttons()
 
+    def init_lineedit(self):
+        self.selection_layout = QVBoxLayout()
+        self.lineedit_title = QtGui.QLabel("Choose metadata file to add:")
+        self.selection_layout.insertWidget(0, self.lineedit_title)
+        self.lineedit_layout = QHBoxLayout()
+        self.selection_box = QtGui.QLineEdit()
+        self.browse_button = self.init_button("Browse", explanation="Browse the file explorer")
+        self.lineedit_layout.addWidget(self.selection_box)
+        self.lineedit_layout.addWidget(self.browse_button)
+        self.selection_layout.insertLayout(1, self.lineedit_layout)
+        self.main_layout.insertLayout(0, self.selection_layout)
+
     def init_list_buttons_layout(self):
         self.list_buttons_layout = QHBoxLayout()
-        self.main_layout.insertLayout(0, self.list_buttons_layout, 0)
+        self.main_layout.insertLayout(1, self.list_buttons_layout, 0)
 
-    def init_button(self, label, key, explanation):
+    def init_button(self, label, key=None, explanation=None):
         """
         generates a button with custom name, label and shortcut
         :param label: name of the button (str)
@@ -185,7 +198,9 @@ class AddMetadataWidget(QWidget):
         :return: QPushButton
         """
         button = QPushButton(label)
+        if key is not None:
             button.setShortcut(QtGui.QKeySequence(key))
+        if explanation is not None:
             button.setToolTip(explanation)
         return button
 
@@ -223,7 +238,8 @@ class AddMetadataWidget(QWidget):
         self.main_layout.insertLayout(3, self.accept_cancel_layout)
 
     def connect_signals(self):
-        self.add_button.clicked.connect(self.add_item_from_dialog)
+        self.browse_button.clicked.connect(self.directory_to_lineedit)
+        self.add_button.clicked.connect(self.add_item_from_lineedit)
         self.remove_button.clicked.connect(self.remove_item)
         self.accept_button.clicked.connect(self.accept)
         self.cancel_button.clicked.connect(self.hide)
@@ -236,6 +252,10 @@ class AddMetadataWidget(QWidget):
             item = QtGui.QStandardItem(inventory_path)
             self.list_model.appendRow(item)
 
+    def directory_to_lineedit(self):
+        inventory_path = self.open_directory()
+        self.selection_box.setText(inventory_path)
+
     def open_directory(self):
         """
         choosing a directory in the dialog window and returning the path
@@ -246,17 +266,14 @@ class AddMetadataWidget(QWidget):
             return
         return fninv
 
-    def add_item_from_dialog(self):
+    def add_item_from_lineedit(self):
-        inventory_path = self.open_directory()
-        self.add_item(inventory_path)
-
-    def add_item(self, inventory_path):
         """
         checks if the inventory path is already in the list and if it leads to a directory;
         adds the path to the visible list;
         adds the path to the list of inventories that get added to the metadata upon accepting all changes
         :param inventory_path: path of the folder that contains the metadata (unicode string)
         """
+        inventory_path = self.selection_box.text()
         if not inventory_path:
             return
         if inventory_path in self.metadata.inventories or inventory_path in self.inventories_add:
@@ -270,6 +287,7 @@ class AddMetadataWidget(QWidget):
         item.setEditable(False)
         self.inventories_add.append(inventory_path)
         self.list_model.appendRow(item)             # adds path to visible list
+        self.selection_box.setText("")
 
     def remove_item(self):
         """