private void InitializeUiElements()
{
_ApOff = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("ApOff");
_GearDownOff = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("GearDownOff");
_GearUpOff = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("GearUpOff");
_StallOff = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("StallOff");
_StallWarnOff = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("StallWarnOff");
}
private Rectangle NewRectangle(Color color)
{
var r = new Rectangle
{
Width = FieldHelper.BlockWidth * 0.9,
Height = FieldHelper.BlockHeight * 0.9,
Fill = new SolidColorBrush(color, 1)
};
_canvas.Children.Add(r);
return(r);
}
/// <summary>
/// Invoked when the mouse is moved around after the left button has been pressed on the NavigatorCanvas. Moves the DisplayArea around.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NavigatorPointerMoved(object sender, PointerEventArgs e)
{
if (IsMouseDown)
{
PDFRenderer renderer = this.FindControl <PDFRenderer>("MuPDFRenderer");
Avalonia.Controls.Shapes.Rectangle displayRect = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("DisplayAreaRectangle");
Point point = e.GetPosition(this.FindControl <Canvas>("NavigatorCanvas"));
double deltaX = -(-point.X + MouseDownPoint.X) / displayRect.Width * MouseDownDisplayArea.Width;
double deltaY = -(-point.Y + MouseDownPoint.Y) / displayRect.Height * MouseDownDisplayArea.Height;
renderer.SetDisplayAreaNow(new Rect(new Point(this.MouseDownDisplayArea.X + deltaX, this.MouseDownDisplayArea.Y + deltaY), new Point(this.MouseDownDisplayArea.Right + deltaX, this.MouseDownDisplayArea.Bottom + deltaY)));
}
}
protected void NewWindowOnOpened(object?sender, EventArgs e)
{
Screens screens = new Window().Screens;
PixelRect pr = screens.Primary.Bounds;
PixelPoint pp = new PixelPoint(pr.BottomRight.X / 5, pr.BottomRight.Y / 5);
Position = pp;
RectangleBoundWindow = this.FindControl <Rectangle>("RectangleBound");
GridMain = this.FindControl <Grid>("GridMain");
ColumnDefinition column2 = GridMain.ColumnDefinitions[0];
column2.MaxWidth = 500;
column2.MinWidth = 200;
}
/// <summary>
/// Invoked when a mouse button is clicked on the NavigatorCanvas. Centers the DisplayArea around the clicked point and starts panning.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void NavigatorPointerPressed(object sender, PointerPressedEventArgs e)
{
if (e.GetCurrentPoint(this).Properties.PointerUpdateKind == PointerUpdateKind.LeftButtonPressed)
{
IsMouseDown = true;
MouseDownPoint = e.GetPosition(this.FindControl <Canvas>("NavigatorCanvas"));
MouseDownDisplayArea = this.FindControl <PDFRenderer>("MuPDFRenderer").DisplayArea;
Avalonia.Controls.Shapes.Rectangle displayRect = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("DisplayAreaRectangle");
double areaCenterX = ((TranslateTransform)displayRect.RenderTransform).X + displayRect.Width * 0.5;
double areaCenterY = ((TranslateTransform)displayRect.RenderTransform).Y + displayRect.Height * 0.5;
double deltaX = (-areaCenterX + MouseDownPoint.X) / displayRect.Width * MouseDownDisplayArea.Width;
double deltaY = (-areaCenterY + MouseDownPoint.Y) / displayRect.Height * MouseDownDisplayArea.Height;
MouseDownDisplayArea = new Rect(new Point(this.MouseDownDisplayArea.X + deltaX, this.MouseDownDisplayArea.Y + deltaY), new Point(this.MouseDownDisplayArea.Right + deltaX, this.MouseDownDisplayArea.Bottom + deltaY));
this.FindControl <PDFRenderer>("MuPDFRenderer").DisplayArea = MouseDownDisplayArea;
}
}
/// <summary>
/// Invoked when a property of the <see cref="PDFRenderer"/> changes; used to update the NavigatorCanvas when the DisplayArea changes.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RendererPropertyChanged(object sender, AvaloniaPropertyChangedEventArgs e)
{
if (e.Property == PDFRenderer.DisplayAreaProperty)
{
PDFRenderer renderer = this.FindControl <PDFRenderer>("MuPDFRenderer");
Rect displayArea = renderer.DisplayArea;
Rect pageSize = renderer.PageSize;
double minX = Math.Min(displayArea.Left, pageSize.Left);
double minY = Math.Min(displayArea.Top, pageSize.Top);
double maxX = Math.Max(displayArea.Right, pageSize.Right);
double maxY = Math.Max(displayArea.Bottom, pageSize.Bottom);
double width = maxX - minX;
double height = maxY - minY;
double size = Math.Max(width, height);
minX -= (size - width) * 0.5;
maxX += (size - width) * 0.5;
minY -= (size - height) * 0.5;
maxY += (size - height) * 0.5;
Image pageRect = this.FindControl <Image>("PageAreaImage");
Canvas pageCanavs = this.FindControl <Canvas>("PageAreaCanvas");
Avalonia.Controls.Shapes.Rectangle displayRect = this.FindControl <Avalonia.Controls.Shapes.Rectangle>("DisplayAreaRectangle");
pageRect.Width = pageSize.Width / (maxX - minX) * 200;
pageRect.Height = pageSize.Height / (maxY - minY) * 200;
pageCanavs.Width = pageSize.Width / (maxX - minX) * 200;
pageCanavs.Height = pageSize.Height / (maxY - minY) * 200;
pageCanavs.RenderTransform = new TranslateTransform((pageSize.Left - minX) / (maxX - minX) * 200, (pageSize.Top - minY) / (maxY - minY) * 200);
displayRect.Width = displayArea.Width / (maxX - minX) * 200;
displayRect.Height = displayArea.Height / (maxY - minY) * 200;
displayRect.RenderTransform = new TranslateTransform((displayArea.Left - minX) / (maxX - minX) * 200, (displayArea.Top - minY) / (maxY - minY) * 200);
}
}
