/// <summary>
/// Drop in slide show
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void SlideshowImageList_Drop(object sender, DragEventArgs e)
{
if (slideshowImageList.IsEnabled)
{
//Get data that's being draged
MediaData dragedMediaData;
dragedMediaData = (ImageData)e.Data.GetData(typeof(ImageData));
if (dragedMediaData == null)
{
dragedMediaData = (VideoData)e.Data.GetData(typeof(VideoData));
}
// Get X location of mouse (only moving in X direction, not Y)
double mouseX = e.GetPosition(this).X;
// Set other x values
double dragedX_Left = double.NaN;
double dragedX_Right = double.NaN;
// Set values
bool insertedBefore = false;
bool move = true;
// If the draged card is in the slideshow, get location
if (dragedMediaData.Id >= 0)
{
UIElement uiElement =
(UIElement)slideshowImageList.ItemContainerGenerator.ContainerFromIndex(dragedMediaData.Order);
dragedX_Left = uiElement.TranslatePoint(new System.Windows.Point(0, 0), this).X;
dragedX_Right = dragedX_Left + uiElement.RenderSize.Width;
// If mnote draged outsided extent of selected item, it's not being moved
if (mouseX > dragedX_Left && mouseX < dragedX_Right)
{
move = false;
}
}
// If being mode, we're going to find the location to drop in
if (move)
{
// Loop over cards
for (int i = 0; i < slideshowImages.Count; i++)
{
int thisID = slideshowImages[i].Id;
if (thisID != dragedMediaData.Id)
{
// Extent of
double extentLeft = double.NaN;
double extentRight = double.NaN;
UIElement uiElement = (UIElement)slideshowImageList.ItemContainerGenerator.ContainerFromIndex(slideshowImages[i].Order);
// If previous or next card was the draged imaged, use all extent
if ((slideshowImages[i].Order == dragedMediaData.Order + 1) || (slideshowImages[i].Order == dragedMediaData.Order - 1))
{
extentLeft = uiElement.TranslatePoint(new System.Windows.Point(0, 0), this).X;
extentRight = extentLeft + uiElement.RenderSize.Width;
}
else
{
// Otherwise use mid to mid
if (double.IsNaN(extentRight))
{
extentLeft = uiElement.TranslatePoint(new System.Windows.Point(0, 0), this).X;
}
else
{
extentLeft = extentRight;
}
extentRight = uiElement.TranslatePoint(new System.Windows.Point(0, 0), this).X + +uiElement.RenderSize.Width / 2;
}
// If drop location is within extent, insert it here
if (mouseX > extentLeft && mouseX < extentRight)
{
insertedBefore = true;
// If draged from folder view, create
if (dragedMediaData.Id == -1)
{
MediaData mediaData = NewMediaData(dragedMediaData, slideshowImages.Count, i, true);
selectedSlideShow.Insert(i, mediaData);
}
else
{
// Otherwise move current
selectedSlideShow.Move(dragedMediaData.Order, i);
}
// Image has been inserted, break loop
i = slideshowImages.Count;
}
}
}
// If we move it to the end
if (!insertedBefore)
{
// If draged from folder view, create
if (dragedMediaData.Id == -1)
{
MediaData mediaData = NewMediaData(dragedMediaData, slideshowImages.Count, slideshowImages.Count, true);
selectedSlideShow.Add(mediaData);
}
else
{
// Otherwise move current
selectedSlideShow.Move(dragedMediaData.Order, slideshowImages.Count - 1);
}
}
}
// Reset order for each image
selectedSlideShow.ReOrder();
slideshowImages = selectedSlideShow.MediaData;
slideshowImageList.ItemsSource = slideshowImages;
slideshowImageList.Items.Refresh();
}
else
{
MessageBox.Show("Slideshow needs to be created first", "Error");
}
}