Add units selector to measure dialog. Add info text to dialog

Author: NathanW2

src/app/qgsmeasuredialog.cpp

@@ -43,7 +43,15 @@ QgsMeasureDialog::QgsMeasureDialog( QgsMeasureTool* tool, Qt::WindowFlags f )
   mMeasureArea = tool->measureArea();
   mTotal = 0.;
 
+  mUnitsCombo->addItem( "Meters");
+  mUnitsCombo->addItem( "Feet");
+  mUnitsCombo->addItem( "Degrees");
+  mUnitsCombo->addItem( "Nautical Miles");
+  mUnitsCombo->setCurrentIndex( 0 );
+
   updateSettings();
+
+  connect( mUnitsCombo, SIGNAL( currentIndexChanged( const QString & ) ), this, SLOT( unitsChanged( const QString & ) ) );
 }
 
 void QgsMeasureDialog::updateSettings()
@@ -52,7 +60,7 @@ void QgsMeasureDialog::updateSettings()
 
   mDecimalPlaces = settings.value( "/qgis/measure/decimalplaces", "3" ).toInt();
   mCanvasUnits = mTool->canvas()->mapUnits();
-  mDisplayUnits = QGis::fromLiteral( settings.value( "/qgis/measure/displayunits", QGis::toLiteral( QGis::Meters ) ).toString() );
+  mDisplayUnits = QGis::fromLiteral( mUnitsCombo->currentText().toLower() );
   // Configure QgsDistanceArea
   mDa.setSourceCrs( mTool->canvas()->mapSettings().destinationCrs().srsid() );
   mDa.setEllipsoid( QgsProject::instance()->readEntry( "Measure", "/Ellipsoid", GEO_NONE ) );
@@ -77,6 +85,14 @@ void QgsMeasureDialog::updateSettings()
   updateUi();
 }
 
+void QgsMeasureDialog::unitsChanged(const QString &units)
+{
+  mDisplayUnits = QGis::fromLiteral( units.toLower() );
+  mTable->clear();
+  mTotal = 0.;
+  updateUi();
+}
+
 void QgsMeasureDialog::restart()
 {
   mTool->restart();
@@ -221,6 +237,7 @@ QString QgsMeasureDialog::formatDistance( double distance )
   QSettings settings;
   bool baseUnit = settings.value( "/qgis/measure/keepbaseunit", false ).toBool();
 
+  QgsDebugMsg( mUnitsCombo->currentText().toLower() );
   QGis::UnitType newDisplayUnits;
   convertMeasurement( distance, newDisplayUnits, false );
   return QgsDistanceArea::textUnit( distance, mDecimalPlaces, newDisplayUnits, false, baseUnit );
@@ -269,6 +286,7 @@ void QgsMeasureDialog::updateUi()
 
   editTotal->setToolTip( toolTip );
   mTable->setToolTip( toolTip );
+  mNotesLabel->setText( toolTip );
 
   QGis::UnitType newDisplayUnits;
   double dummy = 1.0;

src/app/qgsmeasuredialog.h

@@ -66,6 +66,9 @@ class APP_EXPORT QgsMeasureDialog : public QDialog, private Ui::QgsMeasureBase
     //! When any external settings change
     void updateSettings();
 
+  private slots:
+    void unitsChanged( const QString &units );
+
   private:
 
     //! formats distance to most appropriate units

src/ui/qgsmeasurebase.ui

@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>281</width>
-    <height>272</height>
+    <width>359</width>
+    <height>301</height>
    </rect>
   </property>
   <property name="baseSize">
@@ -25,13 +25,32 @@
    </iconset>
   </property>
   <layout class="QGridLayout">
-   <property name="margin">
+   <property name="leftMargin">
+    <number>9</number>
+   </property>
+   <property name="topMargin">
+    <number>9</number>
+   </property>
+   <property name="rightMargin">
+    <number>9</number>
+   </property>
+   <property name="bottomMargin">
     <number>9</number>
    </property>
    <property name="spacing">
     <number>6</number>
    </property>
-   <item row="2" column="2">
+   <item row="4" column="0">
+    <widget class="QLabel" name="textLabel2">
+     <property name="text">
+      <string>Total</string>
+     </property>
+     <property name="buddy">
+      <cstring>editTotal</cstring>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="2">
     <widget class="QLineEdit" name="editTotal">
      <property name="font">
       <font>
@@ -47,7 +66,7 @@
      </property>
     </widget>
    </item>
-   <item row="2" column="1">
+   <item row="4" column="1">
     <spacer>
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
@@ -63,17 +82,10 @@
      </property>
     </spacer>
    </item>
-   <item row="2" column="0">
-    <widget class="QLabel" name="textLabel2">
-     <property name="text">
-      <string>Total</string>
-     </property>
-     <property name="buddy">
-      <cstring>editTotal</cstring>
-     </property>
-    </widget>
+   <item row="4" column="3">
+    <widget class="QComboBox" name="mUnitsCombo"/>
    </item>
-   <item row="1" column="0" colspan="3">
+   <item row="2" column="0" colspan="4">
     <widget class="QTreeWidget" name="mTable">
      <property name="editTriggers">
       <set>QAbstractItemView::NoEditTriggers</set>
@@ -91,7 +103,17 @@
      </column>
     </widget>
    </item>
-   <item row="3" column="2">
+   <item row="5" column="0" colspan="4">
+    <widget class="QLabel" name="mNotesLabel">
+     <property name="text">
+      <string/>
+     </property>
+     <property name="wordWrap">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="0" colspan="4">
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="standardButtons">
       <set>QDialogButtonBox::Close|QDialogButtonBox::Help</set>