private void MenuFlyoutItem_Tapped(object sender, TappedRoutedEventArgs e)
{
var listItem = (sender as ListBoxItem).Name;
if (listItem == "rotateItem")
{
imageState = 1;
rotate = (rotate + 90) % 360;
RotateTransform rotateTransform = new RotateTransform();
rotateTransform.Angle = rotate;
rotateTransform.CenterX = editCanvas.Width / 2;
rotateTransform.CenterY = editCanvas.Height / 2;
editCanvas.RenderTransform = rotateTransform;
editCanvas.Draw += editCanvas_Draw;
}
else if (listItem == "cutItem")
{
imageState = 2;
if (cutmanage == null)
{
cutmanage = new CutManage()
{
cutPointX = editCanvas.Width / 4, cutPointY = editCanvas.Height / 4, cutWidth = 200, cutHeight = 200, editCanvas_Width = editCanvas.Width, editCanvas_Height = editCanvas.Height
};
iscut = true;
}
}
editCanvas.Invalidate();
editCanvas.Draw += editCanvas_Draw;
}
private void editCanvas_Tapped(object sender, TappedRoutedEventArgs e)
{
var p = e.GetPosition(editCanvas);
if (cutmanage != null)
{
if ((cutmanage as CutManage).LeftTopPoint.Contains(p)) //取消
{
cutmanage = null;
editCanvas.Invalidate();
return;
}
if ((cutmanage as CutManage).RightTopPoint.Contains(p)) //OK
{
//
cutok = true;
iscuted = true;
editCanvas.Draw += editCanvas_Draw;
return;
}
if ((cutmanage as CutManage).cutArea.Contains(p)) //点击的是 剪切对象 区域
{
return;
}
}
if (_wall_paperUI != null)
{
if ((_wall_paperUI as StickManage).RightTopRegion.Contains(p))
{
_wall_paperUI = null;
editCanvas.Invalidate();
return;
}
if ((_wall_paperUI as StickManage).Region.Contains(p))
{
(_wall_paperUI as StickManage).Editing = !(_wall_paperUI as StickManage).Editing;
editCanvas.Invalidate();
return;
}
}
}
private void DrawBackImage(CanvasDrawingSession graphics, double scale)
{
if (editimage != null)
{
Rect des = GetImageDrawingRect();
des.X *= scale;
des.Y *= scale;
des.Width *= scale;
des.Height *= scale;
// 滤镜特效
//亮度
ICanvasImage image = GetBrightnessEffect(editimage);
//对比度
image = GetContrastEffect(image);
//饱和度
image = GetSaturationEffect(image);
//锐化
image = GetSharpenEffect(image);
//模糊
image = GetBlurEffect(image);
////应用滤镜模板
image = ApplyFilterTemplate(image);
var width_scale = editimage.Bounds.Width / des.Width;
var height_scale = editimage.Bounds.Height / des.Height;
if (cutok)
{
left = (float)cutmanage.cutPointX;
top = (float)cutmanage.cutPointY;
descut.X = (cutmanage.cutPointX - des.X) * width_scale;
descut.Y = (cutmanage.cutPointY - des.Y) * height_scale;
descut.Width = cutmanage.cutWidth * width_scale;
descut.Height = cutmanage.cutHeight * height_scale;
cutok = false;
cutmanage = null;
}
//des.Width = 100;
//Vector2 vec = new Vector2();
if (iscuted)
{
//graphics.DrawImage(_image, left,top,descut);
if (cuted)
{
//graphics.DrawImage(image, des, descut);
//image = new AtlasEffect { Source = image, SourceRectangle = descut };
image = new CropEffect {
Source = image, SourceRectangle = descut
};
}
else
{
//graphics.DrawImage(image, des, descut);
//image = new AtlasEffect { Source = image, SourceRectangle = descut };
image = new CropEffect {
Source = image, SourceRectangle = descut
};
cuted = true;
}
}
//else
//{
// graphics.DrawImage(image, des, editimage.Bounds);
//}
graphics.DrawImage(image, des, editimage.Bounds);
//if(cutok)
//{
// image = new CropEffect { Source = image, SourceRectangle = new Rect(cutmanage.cutPointX, cutmanage.cutPointY, cutmanage.cutWidth, cutmanage.cutHeight) };
// //cutok = false;
// cutmanage = null;
//}
//graphics.DrawImage(image, des, editimage.Bounds);
}
}
