Option to remember selected datum transformations

qgis · Nov 11, 2013 · 7c98970 · 7c98970
1 parent 3278114
commit 7c98970
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Showing 4 changed files with 38 additions and 6 deletions.
diff --git a/src/gui/qgsdatumtransformdialog.cpp b/src/gui/qgsdatumtransformdialog.cpp
@@ -53,3 +53,8 @@ QList< int > QgsDatumTransformDialog::selectedDatumTransform()
   }
   return list;
 }
+
+bool QgsDatumTransformDialog::rememberSelection() const
+{
+  return mRememberSelectionCheckBox->isChecked();
+}
diff --git a/src/gui/qgsdatumtransformdialog.h b/src/gui/qgsdatumtransformdialog.h
@@ -10,6 +10,9 @@ class GUI_EXPORT QgsDatumTransformDialog: public QDialog, private Ui::QgsDatumTr
     ~QgsDatumTransformDialog();
 
     QList< int > selectedDatumTransform();
+
+    bool rememberSelection() const;
+
   private:
     QgsDatumTransformDialog();
 };

diff --git a/src/gui/qgsmapcanvas.cpp b/src/gui/qgsmapcanvas.cpp
@@ -30,6 +30,7 @@ email                : sherman at mrcc.com
 #include <QPaintEvent>
 #include <QPixmap>
 #include <QRect>
+#include <QSettings>
 #include <QTextStream>
 #include <QResizeEvent>
 #include <QString>
@@ -1555,6 +1556,17 @@ void QgsMapCanvas::getDatumTransformInfo( const QgsMapLayer* ml, const QString&
     return;
   }
 
+  //check if default datum transformation available
+  QSettings s;
+  QString settingsString = "/Projections/" + srcAuthId + "//" + destAuthId;
+  QVariant defaultSrcTransform = s.value( settingsString + "_srcTransform" );
+  QVariant defaultDestTransform = s.value( settingsString + "_destTransform" );
+  if ( defaultSrcTransform.isValid() && defaultDestTransform.isValid() )
+  {
+    mMapRenderer->addLayerCoordinateTransform( ml->id(), srcAuthId, destAuthId, defaultSrcTransform.toInt(), defaultDestTransform.toInt() );
+    return;
+  }
+
   const QgsCoordinateReferenceSystem& srcCRS = QgsCRSCache::instance()->crsByAuthId( srcAuthId );
   const QgsCoordinateReferenceSystem& destCRS = QgsCRSCache::instance()->crsByAuthId( destAuthId );
 
@@ -1581,6 +1593,11 @@ void QgsMapCanvas::getDatumTransformInfo( const QgsMapLayer* ml, const QString&
       destTransform = t.at( 1 );
     }
     mMapRenderer->addLayerCoordinateTransform( ml->id(), srcAuthId, destAuthId, srcTransform, destTransform );
+    if ( d.rememberSelection() )
+    {
+      s.setValue( settingsString + "_srcTransform", srcTransform );
+      s.setValue( settingsString + "_destTransform", destTransform );
+    }
   }
   else
   {

diff --git a/src/ui/qgsdatumtransformdialogbase.ui b/src/ui/qgsdatumtransformdialogbase.ui
@@ -14,6 +14,16 @@
    <string>Select datum transformations</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
+   <item row="2" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
    <item row="0" column="0">
     <widget class="QTreeWidget" name="mDatumTransformTreeWidget">
      <column>
@@ -34,12 +44,9 @@
     </widget>
    </item>
    <item row="1" column="0">
-    <widget class="QDialogButtonBox" name="buttonBox">
-     <property name="orientation">
-      <enum>Qt::Horizontal</enum>
-     </property>
-     <property name="standardButtons">
-      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+    <widget class="QCheckBox" name="mRememberSelectionCheckBox">
+     <property name="text">
+      <string>Remember selection</string>
      </property>
     </widget>
    </item>