Initialize raster save as dialog

Author: mhugent

src/app/qgisapp.cpp

@@ -3770,7 +3770,7 @@ void QgisApp::saveAsRasterFile()
     return;
   }
 
-  QgsRasterLayerSaveAsDialog d;
+  QgsRasterLayerSaveAsDialog d( rasterLayer->dataProvider() );
   d.exec();
 }
 

src/gui/qgsrasterlayersaveasdialog.cpp

@@ -1,10 +1,80 @@
 #include "qgsrasterlayersaveasdialog.h"
+#include "qgsrasterdataprovider.h"
+
+QgsRasterLayerSaveAsDialog::QgsRasterLayerSaveAsDialog( QgsRasterDataProvider* sourceProvider,
+    QWidget* parent, Qt::WindowFlags f ): QDialog( parent, f ),
+    mDataProvider( sourceProvider )
 
-QgsRasterLayerSaveAsDialog::QgsRasterLayerSaveAsDialog( QWidget* parent, Qt::WindowFlags f ): QDialog( parent, f )
 {
   setupUi( this );
+  setValidators();
+
+  //fill reasonable default values depending on the provider
+  if ( mDataProvider )
+  {
+    if ( mDataProvider->capabilities() & QgsRasterDataProvider::ExactResolution )
+    {
+      int xSize = mDataProvider->xSize();
+      int ySize = mDataProvider->ySize();
+      mColumnsLineEdit->setText( QString::number( xSize ) );
+      mRowsLineEdit->setText( QString::number( ySize ) );
+      mMaximumSizeXLineEdit->setText( QString::number( xSize ) );
+      mMaximumSizeYLineEdit->setText( QString::number( ySize ) );
+    }
+    else //wms
+    {
+      mTileModeCheckBox->setChecked( true );
+      mColumnsLineEdit->setText( QString::number( 10000 ) );
+      mRowsLineEdit->setText( QString::number( 10000 ) );
+      mMaximumSizeXLineEdit->setText( QString::number( 2000 ) );
+      mMaximumSizeYLineEdit->setText( QString::number( 2000 ) );
+    }
+  }
+}
+
+void QgsRasterLayerSaveAsDialog::setValidators()
+{
+  mColumnsLineEdit->setValidator( new QIntValidator( this ) );
+  mRowsLineEdit->setValidator( new QIntValidator( this ) );
+  mMaximumSizeXLineEdit->setValidator( new QIntValidator( this ) );
+  mMaximumSizeYLineEdit->setValidator( new QIntValidator( this ) );
 }
 
 QgsRasterLayerSaveAsDialog::~QgsRasterLayerSaveAsDialog()
 {
 }
+
+int QgsRasterLayerSaveAsDialog::nColumns() const
+{
+  return mColumnsLineEdit->text().toInt();
+}
+
+int QgsRasterLayerSaveAsDialog::nRows() const
+{
+  return mRowsLineEdit->text().toInt();
+}
+
+int QgsRasterLayerSaveAsDialog::maximumTileSizeX() const
+{
+  return mMaximumSizeXLineEdit->text().toInt();
+}
+
+int QgsRasterLayerSaveAsDialog::maximumTileSizeY() const
+{
+  return mMaximumSizeYLineEdit->text().toInt();
+}
+
+bool QgsRasterLayerSaveAsDialog::tileMode() const
+{
+  return mTileModeCheckBox->isChecked();
+}
+
+QString QgsRasterLayerSaveAsDialog::outputFileName() const
+{
+  return mSaveAsLineEdit->text();
+}
+
+QString QgsRasterLayerSaveAsDialog::outputFormat() const
+{
+  return ""; //soon...
+}

src/gui/qgsrasterlayersaveasdialog.h

@@ -3,11 +3,26 @@
 
 #include "ui_qgsrasterlayersaveasdialogbase.h"
 
+class QgsRasterDataProvider;
+
 class QgsRasterLayerSaveAsDialog: public QDialog, private Ui::QgsRasterLayerSaveAsDialogBase
 {
   public:
-    QgsRasterLayerSaveAsDialog( QWidget* parent = 0, Qt::WindowFlags f = 0 );
+    QgsRasterLayerSaveAsDialog( QgsRasterDataProvider* sourceProvider, QWidget* parent = 0, Qt::WindowFlags f = 0 );
     ~QgsRasterLayerSaveAsDialog();
+
+    int nColumns() const;
+    int nRows() const;
+    int maximumTileSizeX() const;
+    int maximumTileSizeY() const;
+    bool tileMode() const;
+    QString outputFileName() const;
+    QString outputFormat() const;
+
+  private:
+    QgsRasterDataProvider* mDataProvider;
+
+    void setValidators();
 };
 
 #endif // QGSRASTERLAYERSAVEASDIALOG_H

src/ui/qgsrasterlayersaveasdialogbase.ui

@@ -50,7 +50,7 @@
       <bool>false</bool>
      </property>
      <property name="text">
-      <string>Browse</string>
+      <string>Browse...</string>
      </property>
     </widget>
    </item>
@@ -85,7 +85,7 @@
      </property>
      <layout class="QGridLayout" name="gridLayout">
       <item row="0" column="1">
-       <widget class="QLineEdit" name="mMaximumSizeXComboBox"/>
+       <widget class="QLineEdit" name="mMaximumSizeXLineEdit"/>
       </item>
       <item row="0" column="0">
        <widget class="QLabel" name="mMaximumSizeXLabel">