Added browse file functionality to datasets and projections

helloworld/helloworld.py

@@ -23,7 +23,9 @@
 """
 from qgis.PyQt.QtCore import QSettings, QTranslator, QCoreApplication
 from qgis.PyQt.QtGui import QIcon
-from qgis.PyQt.QtWidgets import QAction
+from qgis.PyQt.QtWidgets import QAction, QFileDialog
+from qgis.core import QgsProject
+
 
 # Initialize Qt resources from file resources.py
 from .resources import *
@@ -179,6 +181,18 @@ def unload(self):
                 action)
             self.iface.removeToolBarIcon(action)
 
+    def browse_datasets(self):
+        filename = QFileDialog.getOpenFileName()
+        fname = filename[0].split('/')[-1]
+        self.dlg.comboBox.addItem(fname)
+        self.dlg.comboBox.setCurrentText(fname)
+
+
+    def browse_projections(self):
+        filename = QFileDialog.getOpenFileName()
+        fname = filename[0].split('/')[-1]
+        self.dlg.projText.setText(fname)
+
 
     def run(self):
         """Run method that performs all the real work"""
@@ -188,13 +202,15 @@ def run(self):
         if self.first_start == True:
             self.first_start = False
             self.dlg = helloWorldDialog()
-
-		# Fetch the currently loaded layers
-		layers = QgsProject.instance().layerTreeRoot().children()
-		# Clear the contents of the comboBox from previous runs
-		self.dlg.comboBox.clear()
-		# Populate the comboBox with names of all the loaded layers
-		self.dlg.comboBox.addItems([layer.name() for layer in layers])
+            self.dlg.browseButton.clicked.connect(self.browse_datasets)
+            self.dlg.browseButton2.clicked.connect(self.browse_projections)
+
+        # Fetch the currently loaded layers
+        layers = QgsProject.instance().layerTreeRoot().children()
+        # Clear the contents of the comboBox from previous runs
+        self.dlg.comboBox.clear()
+        # Populate the comboBox with names of all the loaded layers
+        self.dlg.comboBox.addItems([layer.name() for layer in layers])
 
         # show the dialog
         self.dlg.show()

helloworld/helloworld_dialog_base.ui

@@ -1,33 +1,109 @@
-<ui version="4.0" >
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
  <class>helloWorldDialogBase</class>
- <widget class="QDialog" name="helloWorldDialogBase" >
-  <property name="geometry" >
+ <widget class="QDialog" name="helloWorldDialogBase">
+  <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>400</width>
     <height>300</height>
    </rect>
   </property>
-  <property name="windowTitle" >
+  <property name="windowTitle">
    <string>Hello World</string>
   </property>
-  <widget class="QDialogButtonBox" name="button_box" >
-   <property name="geometry" >
+  <widget class="QDialogButtonBox" name="button_box">
+   <property name="geometry">
     <rect>
      <x>30</x>
      <y>240</y>
      <width>341</width>
      <height>32</height>
     </rect>
    </property>
-   <property name="orientation" >
+   <property name="orientation">
     <enum>Qt::Horizontal</enum>
    </property>
-   <property name="standardButtons" >
+   <property name="standardButtons">
     <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
    </property>
   </widget>
+  <widget class="QLabel" name="datasetLabel">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>30</y>
+     <width>81</width>
+     <height>21</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Select a dataset</string>
+   </property>
+  </widget>
+  <widget class="QComboBox" name="comboBox">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>30</y>
+     <width>201</width>
+     <height>22</height>
+    </rect>
+   </property>
+   <property name="maxVisibleItems">
+    <number>100</number>
+   </property>
+  </widget>
+  <widget class="QLabel" name="projLabel">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>80</y>
+     <width>91</width>
+     <height>21</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>Select a projection</string>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="browseButton2">
+   <property name="geometry">
+    <rect>
+     <x>340</x>
+     <y>80</y>
+     <width>31</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>...</string>
+   </property>
+  </widget>
+  <widget class="QLineEdit" name="projText">
+   <property name="geometry">
+    <rect>
+     <x>130</x>
+     <y>80</y>
+     <width>201</width>
+     <height>20</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QPushButton" name="browseButton">
+   <property name="geometry">
+    <rect>
+     <x>340</x>
+     <y>30</y>
+     <width>31</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>...</string>
+   </property>
+  </widget>
  </widget>
  <resources/>
  <connections>
@@ -37,13 +113,13 @@
    <receiver>helloWorldDialogBase</receiver>
    <slot>accept()</slot>
    <hints>
-    <hint type="source_label" >
-     <x>248</x>
-     <y>254</y>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
     </hint>
-    <hint type="destination_label" >
-     <x>157</x>
-     <y>274</y>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
     </hint>
    </hints>
   </connection>
@@ -53,13 +129,13 @@
    <receiver>helloWorldDialogBase</receiver>
    <slot>reject()</slot>
    <hints>
-    <hint type="source_label" >
-     <x>316</x>
-     <y>260</y>
+    <hint type="sourcelabel">
+     <x>20</x>
+     <y>20</y>
     </hint>
-    <hint type="destination_label" >
-     <x>286</x>
-     <y>274</y>
+    <hint type="destinationlabel">
+     <x>20</x>
+     <y>20</y>
     </hint>
    </hints>
   </connection>