private void HomeContentDialog_SecondaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
HomeContentDialog.Hide();
//Frame.GoBack();
App.Model.StartVisibility = Visibility.Visible;
}
private void HomeContentDialog_CloseButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
HomeContentDialog.Hide();
}
private async void HomeContentDialog_PrimaryButtonClick(ContentDialog sender, ContentDialogButtonClickEventArgs args)
{
HomeContentDialog.Hide();
LoadingControl.IsLoading = true;//Con：加载控件
await Task.Delay(400);
//1、创建一个XDocument对象
XDocument xDoc = new XDocument();
XDeclaration XDec = new XDeclaration("1.0", "utf-8", "no");
//设置xml的文档定义
xDoc.Declaration = XDec;
//2、创建根节点
XElement root = new XElement("Layers");
xDoc.Add(root);
XElement Width = new XElement("Width", App.Model.Width);
root.Add(Width);
XElement Height = new XElement("Height", App.Model.Height);
root.Add(Height);
XElement Tool = new XElement("Tool", App.Model.Tool);
root.Add(Tool);
XElement Index = new XElement("Index", App.Model.Index);
root.Add(Index);
//3、创建主图片
ICanvasImage ci = App.Model.NullRenderTarget;
for (int i = App.Model.Layers.Count - 1; i >= 0; i--) //自下而上渲染
{
ci = App.RenderTransform(App.Model.Layers[i], ci); //渲染
}
using (CanvasDrawingSession ds = App.Model.SecondBottomRenderTarget.CreateDrawingSession())
{
ds.Clear(Color.FromArgb(0, 0, 0, 0));
ds.DrawImage(ci);
}
var MainBytes = App.Model.SecondBottomRenderTarget.GetPixelBytes(); //把位图转为byte[]
var MainString = Convert.ToBase64String(MainBytes); //把btye[]转为字符串
XElement MainCanvasRender = new XElement("MainRenderTarget", MainString); //字符串写入xml节点
root.Add(MainCanvasRender);
//4、循环创建节点
foreach (var l in App.Model.Layers)
{
XElement Layer = new XElement("Layer");
root.Add(Layer);
//4、创建元素
XElement LayerName = new XElement("LayerName", l.Name);
Layer.Add(LayerName);
XElement LayerVisual = new XElement("LayerVisual", l.Visual);
Layer.Add(LayerVisual);
XElement LayerOpacity = new XElement("LayerOpacity", l.Opacity);
Layer.Add(LayerOpacity);
XElement LayerBlendIndex = new XElement("LayerBlendIndex", l.BlendIndex);
Layer.Add(LayerBlendIndex);
XElement LayerWidth = new XElement("LayerWidth", l.CanvasRenderTarget.SizeInPixels.Width);
Layer.Add(LayerWidth);
XElement LayerHeight = new XElement("LayerHeight", l.CanvasRenderTarget.SizeInPixels.Height);
Layer.Add(LayerHeight);
var Bytes = l.CanvasRenderTarget.GetPixelBytes(); //把位图转为byte[]
var str = Convert.ToBase64String(Bytes); //把btye[]转为字符串
XElement CanvasRenderTarget = new XElement("CanvasRenderTarget", str); //字符串写入xml节点
Layer.Add(CanvasRenderTarget);
}
//5、保存
string path = ApplicationData.Current.LocalFolder.Path + "/" + App.Model.Name + ".photo"; //将XML文件加载进来
xDoc.Save(path);
//6、缩略图 （裁切成宽高最大256的图片）
//缩略图缩放比例
float scale = App.Model.Width < App.Model.Height ? 256.0f / App.Model.Width : 256.0f / App.Model.Height;
//缩放后宽高并确定左右上下偏移
float W = scale * App.Model.Width;
float H = scale * App.Model.Height;
CanvasRenderTarget crt = new CanvasRenderTarget(App.Model.VirtualControl, W, H);
using (CanvasDrawingSession ds = crt.CreateDrawingSession())
{
//绘制缩略图
ds.DrawImage(new ScaleEffect
{
Source = App.Model.MainRenderTarget,
Scale = new Vector2(scale)
});
}
Library.Image.SavePng(ApplicationData.Current.LocalFolder, crt, App.Model.Name, CreationCollisionOption.ReplaceExisting);
LoadingControl.IsLoading = false;//Con：加载控件
// Frame.GoBack();
App.Model.StartVisibility = Visibility.Visible;
}