public void SetPaintFormat(WidgetViewModelDate wdg)
{
_Format.BackColor = wdg.vBackgroundColor;
_Format.BorderColor = wdg.vBorderLineColor;
_Format.LineWidth = wdg.vBorderLinethinck;
_Format.Linestyle = wdg.vBorderlineStyle;
if (wdg.WidgetType == WidgetType.Shape)//shape widget use format string
{
SetFontStyle(wdg);
}
else
{
_Format.Fontfamily = wdg.vFontFamily;
_Format.FontSize = wdg.vFontSize;
_Format.Fontcolor = wdg.vFontColor;
_Format.IsBold = wdg.vFontBold;
_Format.IsItalic = wdg.vFontItalic;
_Format.IsUnderline = wdg.vFontUnderLine;
_Format.IsStrikeThough = wdg.vFontStrickeThrough;
}
}
private void SetFontStyle(WidgetViewModelDate wdg)
{
FormatTextCoverter coverter = new FormatTextCoverter(wdg.vTextContent);
_Format.Fontfamily = coverter.GetFontFamily();
_Format.FontSize = coverter.GetFontsize();
_Format.Fontcolor = coverter.GetFontColor();
_Format.IsUnderline = coverter.GetFontUnderline();
_Format.IsStrikeThough = coverter.GetFontStrikeThough();
_Format.IsItalic = coverter.GetFontItalic();
_Format.IsBold = coverter.GetFontBold();
}
public void AddPreviewWidgets(IEnumerable <BaseWidgetItem> widgets, Canvas parent)
{
//Get real left and top property of bound box
double maxRight = double.MinValue;
double maxBottom = double.MinValue;
if (widgets.Count() <= 0)
{
return;
}
foreach (BaseWidgetItem element in widgets)
{
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
Rect rec = new Rect(vm.Raw_Left, vm.Raw_Top, vm.Raw_ItemWidth, vm.Raw_ItemHeight);
if (vm.RotateAngle != 0)
{
rec = new Rect(0, 0, vm.Raw_ItemWidth, vm.Raw_ItemHeight);
rec = element.TransformToAncestor(parent).TransformBounds(rec);
}
minleft = Math.Min(minleft, rec.Left);
mintop = Math.Min(mintop, rec.Top);
maxRight = Math.Max(maxRight, rec.Left + rec.Width);
maxBottom = Math.Max(maxBottom, rec.Top + rec.Height);
}
try
{
Canvas.SetLeft(this, minleft);
Canvas.SetTop(this, mintop);
this.Width = maxRight - minleft;
this.Height = maxBottom - mintop;
}
catch (Exception)
{
NLogger.Warn("Preview Canvas Width and Height must be non-negative:"
+ minleft + "," + mintop + "," + maxRight + "," + maxBottom);
this.Width = 300;
this.Height = 300;
}
//Set real left and top property of preview widget
foreach (BaseWidgetItem element in widgets)
{
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
Rect rec = new Rect(vm.Left, vm.Top, element.ActualWidth, element.ActualHeight);
if (vm.RotateAngle != 0)
{
rec = new Rect(0, 0, element.ActualWidth, element.ActualHeight);
rec = element.TransformToAncestor(parent).TransformBounds(rec);
}
double left = rec.Left - minleft;
double top = rec.Top - mintop;
VisualBrush visualBrush = new VisualBrush();
visualBrush.AutoLayoutContent = true;
visualBrush.Visual = element.Parent as Visual;
visualBrush.Stretch = Stretch.None;
element.ClipToBounds = true;
visualBrush.AlignmentX = 0;
visualBrush.AlignmentY = 0;
Rectangle rectangle = new Rectangle();
try
{
rectangle.Height = rec.Height;
rectangle.Width = rec.Width;
rectangle.Fill = visualBrush;
}
catch
{
NLogger.Warn("Widget Rectabgke Width and Height must be non-negative.");
continue;
}
AdornerMovePreviewCanvas.Children.Add(rectangle);
Canvas.SetLeft(rectangle, left);
Canvas.SetTop(rectangle, top);
}
AdornerMovePreviewCanvas.InvalidateVisual();
}
/// <summary>
/// Create thumbNail for custom widget.
/// </summary>
/// <param name="bAllWidget">true: all widgets in the page, false: selected widgets in the page</param>
/// <returns>ThumbNail icon</returns>
private Stream CreateIconImage(bool bAllWidget)
{
if (this.EditorCanvas == null)
{
return(null);
}
//Get real height and width property of image bound box
double minleft = double.MaxValue;
double mintop = double.MaxValue;
double maxRight = double.MinValue;
double maxBottom = double.MinValue;
DesignerCanvas DeCanvas = _editorCanvas as DesignerCanvas;
IEnumerable <BaseWidgetItem> widgets;
if (bAllWidget)
{
if (DeCanvas.AllWidgetItems.Count() <= 0)
{
return(null);
}
widgets = DeCanvas.AllWidgetItems.OrderBy(i => (i.DataContext as WidgetViewModelDate).ZOrder);
}
else
{
if (DeCanvas.SelectedItemAndChildren.Count() <= 0)
{
return(null);
}
widgets = DeCanvas.SelectedItemAndChildren.OrderBy(i => (i.DataContext as WidgetViewModelDate).ZOrder);
}
foreach (BaseWidgetItem element in widgets)
{
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
Rect rec = new Rect(vm.Left, vm.Top, element.ActualWidth, element.ActualHeight);
if (vm.RotateAngle != 0)
{
//Point offset = element.TransformToAncestor(parent).Transform(new Point(0, 0));
rec = new Rect(0, 0, element.ActualWidth, element.ActualHeight);
rec = element.TransformToAncestor(DeCanvas).TransformBounds(rec);
}
minleft = Math.Min(minleft, rec.Left);
mintop = Math.Min(mintop, rec.Top);
maxRight = Math.Max(maxRight, rec.Left + rec.Width);
maxBottom = Math.Max(maxBottom, rec.Top + rec.Height);
}
double nBoundWdith = maxRight - minleft;
double nBoundHeight = maxBottom - mintop;
//map all widget into a DrawingVisual, make output image ready
DrawingVisual tDrawingVisual = new DrawingVisual();
ScaleTransform stf = new ScaleTransform();
double scale;
if (nBoundWdith > nBoundHeight)
{
scale = 74d / nBoundWdith;
}
else
{
scale = 74d / nBoundHeight;
}
stf.ScaleX = Math.Min(1d, scale);
stf.ScaleY = Math.Min(1d, scale);
tDrawingVisual.Transform = stf;
using (DrawingContext context = tDrawingVisual.RenderOpen())
{
foreach (BaseWidgetItem element in widgets)
{
VisualBrush tVisualBrush = new VisualBrush(element);
tVisualBrush.Stretch = Stretch.Fill;
tVisualBrush.AlignmentX = 0;
tVisualBrush.AlignmentY = 0;
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
double x = vm.Left - minleft;
double y = vm.Top - mintop;
Rect rec = new Rect(x, y, element.ActualWidth, element.ActualHeight);
if (vm.RotateAngle != 0)
{
//Point offset = element.TransformToAncestor(parent).Transform(new Point(0, 0));
rec = new Rect(0, 0, element.ActualWidth, element.ActualHeight);
rec = element.TransformToAncestor(DeCanvas).TransformBounds(rec);
rec.X = rec.X - minleft;
rec.Y = rec.Y - mintop;
}
context.DrawRectangle(tVisualBrush, null, rec);
}
context.Close();
}
RenderTargetBitmap bmp = new RenderTargetBitmap((int)(nBoundWdith * scale), (int)(nBoundHeight * scale), 96, 96, PixelFormats.Pbgra32);
bmp.Render(tDrawingVisual);
//Output the image stream.
BitmapEncoder encoder;
encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bmp));
MemoryStream stream = new MemoryStream();
encoder.Save(stream);
return(stream);
}
private Stream CreateThumbNailImage()
{
if (this.EditorCanvas == null)
{
return(null);
}
try
{
//Get real height and width property of image bound box
//double minleft = double.MaxValue;
//double mintop = double.MaxValue;
double maxRight = double.MinValue;
double maxBottom = double.MinValue;
DesignerCanvas DeCanvas = _editorCanvas as DesignerCanvas;
if (DeCanvas.AllWidgetItems.Count() <= 0)
{
return(null);
}
IEnumerable <BaseWidgetItem> SortedWidgets =
DeCanvas.AllWidgetItems.OrderBy(i => (i.DataContext as WidgetViewModelDate).ZOrder);
foreach (BaseWidgetItem element in SortedWidgets)
{
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
Rect rec = new Rect(vm.Left, vm.Top, element.ActualWidth, element.ActualHeight);
if (vm.RotateAngle != 0)
{
//Point offset = element.TransformToAncestor(parent).Transform(new Point(0, 0));
rec = new Rect(0, 0, element.ActualWidth, element.ActualHeight);
rec = element.TransformToAncestor(DeCanvas).TransformBounds(rec);
}
maxRight = Math.Max(maxRight, rec.Left + rec.Width);
maxBottom = Math.Max(maxBottom, rec.Top + rec.Height);
}
maxRight = maxRight + 10d;
maxBottom = maxBottom + 10d;
double scale = 80 / Math.Max(maxRight, maxBottom);
scale = Math.Min(scale, 1d);
//scale = 1;
//map all widget into a DrawingVisual, make output image ready
DrawingVisual tDrawingVisual = new DrawingVisual();
ScaleTransform stf = new ScaleTransform();
stf.ScaleX = scale;
stf.ScaleY = scale;
tDrawingVisual.Transform = stf;
using (DrawingContext context = tDrawingVisual.RenderOpen())
{
foreach (BaseWidgetItem element in SortedWidgets)
{
VisualBrush tVisualBrush = new VisualBrush(element);
tVisualBrush.Stretch = Stretch.Fill;
tVisualBrush.AlignmentX = 0;
tVisualBrush.AlignmentY = 0;
WidgetViewModelDate vm = element.DataContext as WidgetViewModelDate;
Rect rec = new Rect(vm.Left, vm.Top, element.ActualWidth, element.ActualHeight);
if (vm.RotateAngle != 0)
{
//Point offset = element.TransformToAncestor(parent).Transform(new Point(0, 0));
rec = new Rect(0, 0, element.ActualWidth, element.ActualHeight);
rec = element.TransformToAncestor(DeCanvas).TransformBounds(rec);
}
context.DrawRectangle(tVisualBrush, null, rec);
}
context.Close();
}
RenderTargetBitmap bmp = new RenderTargetBitmap((int)(maxRight * scale), (int)(maxBottom * scale), 96, 96, PixelFormats.Pbgra32);
bmp.Render(tDrawingVisual);
//Output the image stream.
BitmapEncoder encoder;
encoder = new PngBitmapEncoder();
encoder.Frames.Add(BitmapFrame.Create(bmp));
////using (Stream stm = File.Create(@"d:\123.png"))
////{
//// encoder.Save(stm);
////}
////return;
MemoryStream stream = new MemoryStream();
encoder.Save(stream);
return(stream);
}
catch
{
return(null);
}
}
