public void ShowOriginal()
{
isChanged = true;
BoardImageItem item = GetSelectItem();
if (item != null)
{
item.ShowOriginal();
}
}
public void ShowFitFull(bool isAdd)
{
isChanged = true;
BoardImageItem item = GetSelectItem();
if (item != null)
{
item.ShowFitFull(isAdd);
}
}
/// <summary>
/// 添加图片
/// </summary>
/// <param name="url"></param>
public BoardImageItem Add(string fileName)
{
isChanged = true;
Border border = new Border();
ImageBrush imageBrush = new ImageBrush();
FileStream img = new FileStream(fileName, FileMode.Open);
byte[] imgbyte = new byte[img.Length];
img.Read(imgbyte, 0, imgbyte.Length);
img.Close();
BitmapImage bitmap = new BitmapImage();
bitmap.BeginInit();
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.StreamSource = new MemoryStream(imgbyte);
bitmap.EndInit();
imageBrush.ImageSource = bitmap;
imageBrush.Stretch = Stretch.UniformToFill;
border.Background = imageBrush;
border.Width = bitmap.Width;
border.Height = bitmap.Height;
border.IsManipulationEnabled = true;
//动态事件
border.MouseDown += new MouseButtonEventHandler(border_MouseDown);
border.MouseMove += new MouseEventHandler(border_MouseMove);
border.MouseUp += new MouseButtonEventHandler(border_MouseUp);
border.MouseWheel += new MouseWheelEventHandler(border_MouseWheel);
//返回值
BoardImageItem item = new BoardImageItem();
item.BitmapImage = bitmap;
item.FrameworkElement = border;
this.BoardImageList.Add(item);
this.touchPad.Children.Add(border);
this.Select(item);
item.ShowFit();
if (BoardImageList.Count == 1)
{
item.ShowCenter();
}
return(item);
}
/// <summary>
/// 设置选中项
/// </summary>
/// <param name="item"></param>
/// <param name="isSelect"></param>
public void Select(BoardImageItem item)
{
UnSelect();
if (item != null)
{
Border border2 = item.FrameworkElement as Border;
border2.BorderBrush = new SolidColorBrush(this.SelectColor);
border2.BorderThickness = new Thickness(this.DefaultThickness);
item.IsSelect = true;
Canvas.SetZIndex(border2, this.zIndex++);
}
this.OnSelectChanged();
}
/// <summary>
/// 删除图片
/// </summary>
/// <param name="item"></param>
public void Remove(BoardImageItem item)
{
if (item == null)
{
return;
}
this.BoardImageList.Remove(item);
this.touchPad.Children.Remove(item.FrameworkElement);
if (IsAutoSelect && (BoardImageList.Count > 0))
{
this.Select(BoardImageList.Last());
}
this.OnSelectChanged();
isChanged = true;
}
void border_MouseWheel(object sender, MouseWheelEventArgs e)
{
isChanged = true;
BoardImageItem boardImageItem = GetSelectItem();
if (boardImageItem == null)
{
return;
}
if (e.Delta > 0)
{
boardImageItem.ShowMoreBig();
}
else
{
boardImageItem.ShowMoreSmall();
}
}