/// <summary>
/// Update guidelines
/// </summary>
/// <returns></returns>
private async Task UpdateLines()
{
double cellWidth = DesignerCanvas.GridCellWidth;
double w = ModelDesignerCanvas.Width;
double h = ModelDesignerCanvas.Height;
//For progress dialog glitch-free opening
await Task.Delay(500);
var geometry = await Task.Run(() => DesignerCanvas.CreateGridWithStreamGeometry(h, w, cellWidth));
ModelDesignerCanvas.RefreshGuideLines(geometry);
}
/// <summary>
/// Deselect not selected element
/// </summary>
/// <param name="sender"></param>
/// <param name="val"></param>
private void ItemOnSelectionChange(object sender, bool val)
{
var conn = sender as ConnectionInfoViewModel;
if (val)
{
foreach (ConnectionInfoViewModel info in ViewModel.ConnectionInfoViewModels.Where(t => !t.Equals(conn)))
{
info.IsSelected = false;
}
ModelDesignerCanvas.DeselectTables();
ModelDesignerCanvas.DeselectLabels();
_sourceModel = null;
_destinationModel = null;
}
}
/// <summary>
/// Render canvas to bitmap
/// </summary>
/// <returns>Rendered canvas</returns>
private RenderTargetBitmap RenderCanvas()
{
Transform layoutTransform = ModelDesignerCanvas.LayoutTransform;
ModelDesignerCanvas.LayoutTransform = null;
double dpi = 300;
double scale = dpi / 96;
var size = new Size((int)ViewModel.CanvasWidth, (int)ViewModel.CanvasHeight);
ModelDesignerCanvas.Measure(size);
ModelDesignerCanvas.Arrange(new Rect(size));
RenderTargetBitmap render = new RenderTargetBitmap((int)(ViewModel.CanvasWidth * scale), (int)(ViewModel.CanvasHeight * scale), dpi, dpi, PixelFormats.Default);
render.Render(ModelDesignerCanvas);
ModelDesignerCanvas.LayoutTransform = layoutTransform;
return(render);
}
/// <summary>
/// Dimensions changed
/// </summary>
/// <returns></returns>
public async Task CanvasDimensionsChanged()
{
var settings = new MetroDialogSettings()
{
AnimateHide = true,
AnimateShow = false
};
var parent = VisualTreeHelperEx.FindAncestorByType <MetroWindow>(this);
var progressController = await parent.ShowProgressAsync("Please wait...", "Guidelines are updating", false, settings);
await UpdateLines();
await progressController.CloseAsync();
StreamGeometry geometry = DesignerCanvas.CreateGridWithStreamGeometry(ViewModel.CanvasHeight, ViewModel.CanvasWidth,
DesignerCanvas.GridCellWidth);
ModelDesignerCanvas.RefreshGuideLines(geometry);
ViewModel.OnComputedPropertyChanged();
}
/// <summary>
/// Mouse button up
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ModelDesignerCanvas_OnMouseUp(object sender, MouseButtonEventArgs e)
{
if (ViewModel.MouseMode == MouseMode.Select)
{
if (_isDraggingSelection)
{
var selectionRect = new System.Drawing.Rectangle((int)System.Windows.Controls.Canvas.GetLeft(SelectionBorder), (int)System.Windows.Controls.Canvas.GetTop(SelectionBorder), (int)SelectionBorder.Width, (int)SelectionBorder.Height);
var rectanglesVm = ViewModel.TableViewModels.Where(t => DiagramFacade.GetTableRectangles(new[] { t }).FirstOrDefault().IntersectsWith(selectionRect));
IEnumerable <TableContent> contents = ModelDesignerCanvas.Children.OfType <TableContent>().Where(t => rectanglesVm.Any(s => s.Equals(t.TableViewModel)));
foreach (TableContent content in contents)
{
content.IsSelected = true;
}
DragSelectionCanvas.Visibility = Visibility.Hidden;
}
ModelDesignerCanvas.ReleaseMouseCapture();
_dragSelectionStartPoint = null;
_isDraggingSelection = false;
}
}
/// <summary>
/// Export whole canva to XPS
/// </summary>
/// <param name="fileName">Path to file</param>
public void ExportToXps(string fileName)
{
Transform layoutTransform = ModelDesignerCanvas.LayoutTransform;
ModelDesignerCanvas.LayoutTransform = null;
var size = new Size(ViewModel.CanvasWidth, ViewModel.CanvasHeight);
ModelDesignerCanvas.Measure(size);
ModelDesignerCanvas.Arrange(new Rect(size));
Package package = Package.Open(fileName, FileMode.Create);
XpsDocument document = new XpsDocument(package);
XpsDocumentWriter writer = XpsDocument.CreateXpsDocumentWriter(document);
writer.Write(ModelDesignerCanvas);
document.Close();
package.Close();
ModelDesignerCanvas.LayoutTransform = layoutTransform;
Output.WriteLine("FILE SAVED");
}
/// <summary>
/// Show guidelines as grid in canvas
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void ShowGuideLinesCommand_OnExecuted(object sender, ExecutedRoutedEventArgs e)
{
ViewModel.AreGuideLinesVisible = !ViewModel.AreGuideLinesVisible;
ModelDesignerCanvas.SetGuideLinesVisible(ViewModel.AreGuideLinesVisible);
}
/// <summary>
/// Mouse clicked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void ModelDesignerCanvasOnMouseDown(object sender, MouseButtonEventArgs e)
{
switch (ViewModel.MouseMode)
{
case MouseMode.Select:
ModelDesignerCanvas.DeselectTables();
ModelDesignerCanvas.DeselectLabels();
_sourceModel = null;
_destinationModel = null;
DeselectConnections();
ModelDesignerCanvas.ResetZIndexes();
//Selection rectangle logic
_dragSelectionStartPoint = e.GetPosition(ModelDesignerCanvas);
ModelDesignerCanvas.CaptureMouse();
break;
case MouseMode.NewTable:
var origin = e.GetPosition(ModelDesignerCanvas);
var table = new TableViewModel(new TableModel());
var nameDialog = new TableNameDialog
{
Owner = Window.GetWindow(this), Model = table.Model
};
var res = nameDialog.ShowDialog();
if (res.HasValue)
{
if (res.Value)
{
MainWindow window = null;
try
{
window = Window.GetWindow(this) as MainWindow;
var facade = new DiagramFacade(ViewModel);
bool addRes = facade.AddTable(table.Model.Title, (int)origin.X, (int)origin.Y);
if (!addRes)
{
await window.ShowMessageAsync("Add new table", $"Table {table.Model.Title} already exists");
}
else
{
OnTableCreated();
}
}
catch (Exception exception) when(exception is SqlException || exception is OracleException)
{
await window.ShowMessageAsync("Add new table", exception.Message);
}
}
}
ViewModel.MouseMode = MouseMode.Select;
break;
case MouseMode.NewLabel:
var originLabel = e.GetPosition(ModelDesignerCanvas);
ViewModel.LabelViewModels.Add(new LabelViewModel()
{
Left = originLabel.X,
Top = originLabel.Y
});
ViewModel.MouseMode = MouseMode.Select;
break;
}
}
