private void scale_Click(object sender, RoutedEventArgs e)
{
Grid plottingGrid = contentGrid.Children[1] as Grid;
SlopePlotCanvas currCanvas = null;
if (plottingGrid != null)
{
currCanvas = plottingGrid.Children[3] as SlopePlotCanvas;
}
if (currCanvas == null)
{
return;
}
// Obtain currently selected scale MenuItem (if there is one)
// and uncheck all scale MenuItems
MenuItem oldScale = null;
foreach (MenuItem scale in scaleList.Items)
{
if (scale.IsChecked)
{
scale.IsChecked = false;
oldScale = scale;
}
}
// Cast sending scale MenuItem and set it to checked
MenuItem newScale = sender as MenuItem;
if (newScale != null)
{
newScale.IsChecked = true;
}
// If the new value is different from the previous,
// or the user would like to specify a custom scale
if (newScale != oldScale || newScale == scCustom)
{
// Select from list of default scales, or set Custom
double desiredScale;
switch (newScale.Name)
{
// 1000:1
case "sc1000":
currCanvas.ScaleType = Scales.sc1000;
desiredScale = 1000;
break;
// 800:1
case "sc800":
currCanvas.ScaleType = Scales.sc800;
desiredScale = 800;
break;
// 600:1
case "sc600":
currCanvas.ScaleType = Scales.sc600;
desiredScale = 600;
break;
// 500:1
case "sc500":
currCanvas.ScaleType = Scales.sc500;
desiredScale = 500;
break;
// 400:1
case "sc400":
currCanvas.ScaleType = Scales.sc400;
desiredScale = 400;
break;
// 300:1
case "sc300":
currCanvas.ScaleType = Scales.sc300;
desiredScale = 300;
break;
// 200:1
case "sc200":
currCanvas.ScaleType = Scales.sc200;
desiredScale = 200;
break;
// 150:1
case "sc150":
currCanvas.ScaleType = Scales.sc150;
desiredScale = 150;
break;
// 100:1
case "sc100":
currCanvas.ScaleType = Scales.sc100;
desiredScale = 100;
break;
// 50:1
case "sc50":
currCanvas.ScaleType = Scales.sc50;
desiredScale = 50;
break;
// 25:1
case "sc25":
currCanvas.ScaleType = Scales.sc25;
desiredScale = 25;
break;
// 10:1
case "sc10":
currCanvas.ScaleType = Scales.sc10;
desiredScale = 10;
break;
// 5:1
case "sc5":
currCanvas.ScaleType = Scales.sc5;
desiredScale = 5;
break;
// 2:1
case "sc2":
currCanvas.ScaleType = Scales.sc2;
desiredScale = 2;
break;
// 1:1
case "sc1":
currCanvas.ScaleType = Scales.sc1;
desiredScale = 1;
break;
// Custom
default:
// Create modal dialog box to prompt user for new scale
CustomScaleDialog dlg = new CustomScaleDialog(this);
dlg.ShowDialog();
// If the dialog returned OK, set new scale
if (dlg.DialogResult == true)
{
desiredScale = Double.Parse(dlg.scale.Text);
currCanvas.ScaleType = Scales.Custom;
}
// If the dialog returned Cancel, reset to previous scale
else
{
desiredScale = currCanvas.Scale;
newScale.IsChecked = false;
oldScale.IsChecked = true;
}
break;
}
// Zoom to desired scale and centre content WITHOUT zoom
currCanvas.Zoom(currCanvas.Scale / desiredScale, new Point(0.5 * currCanvas.ActualHeight, 0.5 * currCanvas.ActualWidth));
currCanvas.CentreAndFitExtents(false);
}
}
private void scale_Click( object sender , RoutedEventArgs e )
{
Grid plottingGrid = contentGrid.Children[1] as Grid;
SlopePlotCanvas currCanvas = null;
if ( plottingGrid != null )
{
currCanvas = plottingGrid.Children[3] as SlopePlotCanvas;
}
if ( currCanvas == null ) return;
// Obtain currently selected scale MenuItem (if there is one)
// and uncheck all scale MenuItems
MenuItem oldScale = null;
foreach ( MenuItem scale in scaleList.Items )
{
if ( scale.IsChecked )
{
scale.IsChecked = false;
oldScale = scale;
}
}
// Cast sending scale MenuItem and set it to checked
MenuItem newScale = sender as MenuItem;
if ( newScale != null )
{
newScale.IsChecked = true;
}
// If the new value is different from the previous,
// or the user would like to specify a custom scale
if ( newScale != oldScale || newScale == scCustom )
{
// Select from list of default scales, or set Custom
double desiredScale;
switch ( newScale.Name )
{
// 1000:1
case "sc1000":
currCanvas.ScaleType = Scales.sc1000;
desiredScale = 1000;
break;
// 800:1
case "sc800":
currCanvas.ScaleType = Scales.sc800;
desiredScale = 800;
break;
// 600:1
case "sc600":
currCanvas.ScaleType = Scales.sc600;
desiredScale = 600;
break;
// 500:1
case "sc500":
currCanvas.ScaleType = Scales.sc500;
desiredScale = 500;
break;
// 400:1
case "sc400":
currCanvas.ScaleType = Scales.sc400;
desiredScale = 400;
break;
// 300:1
case "sc300":
currCanvas.ScaleType = Scales.sc300;
desiredScale = 300;
break;
// 200:1
case "sc200":
currCanvas.ScaleType = Scales.sc200;
desiredScale = 200;
break;
// 150:1
case "sc150":
currCanvas.ScaleType = Scales.sc150;
desiredScale = 150;
break;
// 100:1
case "sc100":
currCanvas.ScaleType = Scales.sc100;
desiredScale = 100;
break;
// 50:1
case "sc50":
currCanvas.ScaleType = Scales.sc50;
desiredScale = 50;
break;
// 25:1
case "sc25":
currCanvas.ScaleType = Scales.sc25;
desiredScale = 25;
break;
// 10:1
case "sc10":
currCanvas.ScaleType = Scales.sc10;
desiredScale = 10;
break;
// 5:1
case "sc5":
currCanvas.ScaleType = Scales.sc5;
desiredScale = 5;
break;
// 2:1
case "sc2":
currCanvas.ScaleType = Scales.sc2;
desiredScale = 2;
break;
// 1:1
case "sc1":
currCanvas.ScaleType = Scales.sc1;
desiredScale = 1;
break;
// Custom
default:
// Create modal dialog box to prompt user for new scale
CustomScaleDialog dlg = new CustomScaleDialog( this );
dlg.ShowDialog();
// If the dialog returned OK, set new scale
if ( dlg.DialogResult == true )
{
desiredScale = Double.Parse( dlg.scale.Text );
currCanvas.ScaleType = Scales.Custom;
}
// If the dialog returned Cancel, reset to previous scale
else
{
desiredScale = currCanvas.Scale;
newScale.IsChecked = false;
oldScale.IsChecked = true;
}
break;
}
// Zoom to desired scale and centre content WITHOUT zoom
currCanvas.Zoom( currCanvas.Scale / desiredScale , new Point( 0.5 * currCanvas.ActualHeight , 0.5 * currCanvas.ActualWidth ) );
currCanvas.CentreAndFitExtents( false );
}
}