/// <summary>
/// When the user has finished dragging out the rectangle the zoom operation is applied.
/// </summary>
private void ApplyDragZoomRect()
{
//
// Record the previous zoom level, so that we can jump back to it when the backspace key is pressed.
//
SavePrevZoomRect();
//
// Retreive the rectangle that the user draggged out and zoom in on it.
//
var contentX = Canvas.GetLeft(DragZoomBorder);
var contentY = Canvas.GetTop(DragZoomBorder);
var contentWidth = DragZoomBorder.Width;
var contentHeight = DragZoomBorder.Height;
ZoomAndPanControl.AnimatedZoomTo(new Rect(contentX, contentY, contentWidth, contentHeight));
FadeOutDragZoomRect();
}
protected void zoomAndPanControl_MouseWheel(object sender, MouseWheelEventArgs e)
{
e.Handled = true;
if (e.Delta > 0)
{
Point curContentMousePoint = e.GetPosition(content);
ZoomIn(curContentMousePoint);
}
else if (e.Delta < 0)
{
Point curContentMousePoint = e.GetPosition(content);
ZoomOut(curContentMousePoint);
}
if (ZoomAndPanControl.ContentScale > ZoomAndPanControl.FitScale())
{
LoadFullRes();
LayoutViewModel.FreeZoom = true;
}
}
private void SimulateStep(TimeSpan timeStep, DrawingContext dc)
{
TimeSpan deltaTime = timeStep;
if (zoomAndPanControl == null)
{
zoomAndPanControl = this.FindAncestor <ZoomAndPanControl>();
}
diagram.Simulate(
Math.Min(deltaTime.TotalSeconds, 0.1),
diagram.ZoomAndPanViewModel.ContentWidth,
diagram.ZoomAndPanViewModel.ContentHeight
);
DrawLinks(dc);
if (ShowForces)
{
DrawForces(dc);
}
}
// Event raised on mouse up in the ZoomAndPanControl
public static void MouseUp(object sender, MouseButtonEventArgs e, ZoomAndPanControl z)
{
if (mouseHandlingMode != MouseHandlingMode.None)
{
if (mouseHandlingMode == MouseHandlingMode.Zooming)
{
if (mouseButtonDown == MouseButton.Left)
{
// Shift + left-click zooms in on the content.
ZoomIn(z, origContentMouseDownPoint);
}
else if (mouseButtonDown == MouseButton.Right)
{
// Shift + left-click zooms out from the content.
ZoomOut(z, origContentMouseDownPoint);
}
}
z.ReleaseMouseCapture();
mouseHandlingMode = MouseHandlingMode.None;
e.Handled = true;
}
}
private void Trigger_Event(string cmd, object o)
{
ImageLIst.Dispatcher.Invoke(new Action(delegate
{
switch (cmd)
{
case WindowsCmdConsts.Next_Image:
if (ImageLIst.SelectedIndex <
ImageLIst.Items.Count - 1)
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
int ind = ImageLIst.Items.IndexOf(item);
ImageLIst.SelectedIndex = ind + 1;
}
item = ImageLIst.SelectedItem as FileItem;
if (item != null)
{
ImageLIst.ScrollIntoView(item);
}
}
break;
case WindowsCmdConsts.Prev_Image:
if (ImageLIst.SelectedIndex > 0)
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
int ind = ImageLIst.Items.IndexOf(item);
ImageLIst.SelectedIndex = ind - 1;
}
item = ImageLIst.SelectedItem as FileItem;
if (item != null)
{
ImageLIst.ScrollIntoView(item);
}
}
break;
case WindowsCmdConsts.Like_Image:
if (ImageLIst.SelectedItem != null)
{
FileItem item = null;
if (o != null)
{
item = ServiceProvider.Settings.DefaultSession.GetByName(o as string);
}
else
{
item = ImageLIst.SelectedItem as FileItem;
}
if (item != null)
{
item.IsLiked = !item.IsLiked;
}
}
break;
case WindowsCmdConsts.Unlike_Image:
if (ImageLIst.SelectedItem != null)
{
FileItem item = null;
if (o != null)
{
item =
ServiceProvider.Settings.DefaultSession
.GetByName(o as string);
}
else
{
item = ImageLIst.SelectedItem as FileItem;
}
if (item != null)
{
item.IsUnLiked = !item.IsUnLiked;
}
}
break;
case WindowsCmdConsts.Del_Image:
{
DeleteItem();
}
break;
case WindowsCmdConsts.Select_Image:
FileItem fileItem = o as FileItem;
if (fileItem != null)
{
ImageLIst.SelectedValue = fileItem;
ImageLIst.ScrollIntoView(fileItem);
}
break;
case WindowsCmdConsts.Refresh_Image:
if (!_worker.IsBusy)
{
_worker.RunWorkerAsync(false);
}
break;
case WindowsCmdConsts.Zoom_Image_Fit:
ZoomAndPanControl.AnimatedScaleToFit();
break;
case WindowsCmdConsts.Zoom_Image_100:
LoadFullRes();
ZoomAndPanControl.AnimatedZoomTo(1.0);
break;
case WindowsCmdConsts.Zoom_Image_200:
LoadFullRes();
ZoomAndPanControl.AnimatedZoomTo(2.0);
break;
}
if (cmd.StartsWith(WindowsCmdConsts.ZoomPoint))
{
if (ZoomAndPanControl != null && cmd.Contains("_"))
{
var vals = cmd.Split('_');
if (vals.Count() > 2)
{
double x;
double y;
double.TryParse(vals[1], out x);
double.TryParse(vals[2], out y);
if (cmd.EndsWith("!"))
{
ZoomAndPanControl.SnapToRation(x, y);
}
else
{
ZoomAndPanControl.AnimatedSnapToRation(x, y);
}
}
}
}
}));
}
private void ZoomAndPanControl_ContentScaleChanged(object sender, EventArgs e)
{
GeneratePreview();
LayoutViewModel.FreeZoom = ZoomAndPanControl.ContentScale > ZoomAndPanControl.FitScale();
}
private void OnGraphControlMouseWheel(object sender, MouseWheelEventArgs e)
{
ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale + e.Delta / 1000.0f, e.GetPosition(GraphControl));
e.Handled = true;
}
// Zoom in/out centered on the specified point (in content coordinates).
public static void ZoomAboutPoint(double newContentScale, Point contentZoomFocus, ZoomAndPanControl z)
{
newContentScale = Math.Min(Math.Max(newContentScale, z.MinContentScale), z.MaxContentScale);
double screenSpaceZoomOffsetX = (contentZoomFocus.X - z.ContentOffsetX) * z.ContentScale;
double screenSpaceZoomOffsetY = (contentZoomFocus.Y - z.ContentOffsetY) * z.ContentScale;
double contentSpaceZoomOffsetX = screenSpaceZoomOffsetX / newContentScale;
double contentSpaceZoomOffsetY = screenSpaceZoomOffsetY / newContentScale;
double newContentOffsetX = contentZoomFocus.X - contentSpaceZoomOffsetX;
double newContentOffsetY = contentZoomFocus.Y - contentSpaceZoomOffsetY;
z.ContentScale = newContentScale;
z.ContentOffsetX = newContentOffsetX;
z.ContentOffsetY = newContentOffsetY;
}
private void worker_DoWork(object sender, DoWorkEventArgs e)
{
var item = ServiceProvider.Settings.SelectedBitmap.FileItem;
bool fullres = e.Argument is bool && (bool)e.Argument;
ServiceProvider.Settings.SelectedBitmap.DisplayImage = BitmapLoader.Instance.LoadImage(ServiceProvider.Settings.SelectedBitmap.FileItem, fullres);
ServiceProvider.Settings.SelectedBitmap.Notify();
ServiceProvider.Settings.ImageLoading = false;
GC.Collect();
ZoomAndPanControl.ScaleToFit();
//if (ServiceProvider.Settings.SelectedBitmap.FileItem == null)
// return;
////bool fullres = e.Argument is bool && (bool) e.Argument ||LayoutViewModel.ZoomFit
////bool fullres = !LayoutViewModel.ZoomFit;
//bool fullres = e.Argument is bool && (bool)e.Argument;
//if ((!File.Exists(item.LargeThumb) && item.IsJpg && File.Exists(item.FileName)))
//{
// try
// {
// PhotoUtils.WaitForFile(item.FileName);
// //ServiceProvider.Settings.SelectedBitmap.DisplayImage = (WriteableBitmap)BitmapLoader.Instance.LoadImage(item.FileName, BitmapLoader.LargeThumbSize,0);
// }
// catch (Exception ex)
// {
// Log.Error("Unable to load fast preview", ex);
// }
//}
//ServiceProvider.Settings.ImageLoading = fullres || !ServiceProvider.Settings.SelectedBitmap.FileItem.IsLoaded;
//if (ServiceProvider.Settings.SelectedBitmap.FileItem.Loading)
//{
// while (ServiceProvider.Settings.SelectedBitmap.FileItem.Loading)
// {
// Thread.Sleep(10);
// }
//}
//else
//{
// BitmapLoader.Instance.GenerateCache(ServiceProvider.Settings.SelectedBitmap.FileItem);
//}
//if (!ServiceProvider.Settings.SelectedBitmap.FileItem.HaveHistogramReady())
// ServiceProvider.QueueManager.Add(new QueueItemFileItem
// {
// FileItem = ServiceProvider.Settings.SelectedBitmap.FileItem,
// Generate = QueueType.Histogram
// });
//ServiceProvider.Settings.SelectedBitmap.DisplayImage = BitmapLoader.Instance.LoadImage(ServiceProvider.Settings.SelectedBitmap.FileItem, fullres);
//ServiceProvider.Settings.SelectedBitmap.Notify();
//BitmapLoader.Instance.SetData(ServiceProvider.Settings.SelectedBitmap,
// ServiceProvider.Settings.SelectedBitmap.FileItem);
////Calling Capture Level Graph
////PathUpdate.getInstance().CaptureLevelGraphVM.ImagePath = item.FileName;
//BitmapLoader.Highlight(ServiceProvider.Settings.SelectedBitmap,
// ServiceProvider.Settings.HighlightUnderExp,
// ServiceProvider.Settings.HighlightOverExp);
//ServiceProvider.Settings.SelectedBitmap.FullResLoaded = fullres;
//ServiceProvider.Settings.ImageLoading = false;
//GC.Collect();
//Dispatcher.BeginInvoke(new Action(OnImageLoaded));
}
/// <summary> /// Zoom the viewport out, centering on the specified point (in content coordinates). /// </summary> private void ZoomOut(Point contentZoomCenter) => ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale - 0.1, contentZoomCenter);
/// <summary>
/// Jump back to the previous zoom level.
/// </summary>
private void JumpBackToPrevZoom()
{
ZoomAndPanControl.AnimatedZoomTo(_prevZoomScale, _prevZoomRect);
ClearPrevZoomRect();
}
/// <summary>
/// The 'OneHundredPercent' command was executed.
/// </summary>
private void OneHundredPercent_Executed(object sender, ExecutedRoutedEventArgs e)
{
SavePrevZoomRect();
ZoomAndPanControl.AnimatedZoomTo(1.0);
}
/// <summary>
/// The 'Fill' command was executed.
/// </summary>
private void Fill_Executed(object sender, ExecutedRoutedEventArgs e)
{
SavePrevZoomRect();
ZoomAndPanControl.AnimatedScaleToFit();
}
private void CvZoomOut(Point point)
{
ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale - 0.1, point);
}
private void Fullscreen_OnLoaded(object sender, RoutedEventArgs e)
{
ZoomAndPanControl.AnimatedScaleToFit();
}
/// <summary>
/// Zoom the viewport in, centering on the specified point (in content coordinates).
/// </summary>
private void ZoomIn(Point contentZoomCenter)
{
ZoomAndPanControl.ZoomAboutPoint(ZoomAndPanControl.ContentScale + 0.1, contentZoomCenter);
}
private void TriggerEvent(string cmd, object o)
{
try
{
switch (cmd)
{
case WindowsCmdConsts.Next_Image:
if (ImageLIst.SelectedIndex <
ImageLIst.Items.Count - 1)
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
int ind = ImageLIst.Items.IndexOf(item);
ImageLIst.SelectedIndex = ind + 1;
}
item = ImageLIst.SelectedItem as FileItem;
if (item != null)
{
ImageLIst.ScrollIntoView(item);
}
}
break;
case WindowsCmdConsts.Prev_Image:
if (ImageLIst.SelectedIndex > 0)
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
int ind = ImageLIst.Items.IndexOf(item);
ImageLIst.SelectedIndex = ind - 1;
}
item = ImageLIst.SelectedItem as FileItem;
if (item != null)
{
ImageLIst.ScrollIntoView(item);
}
}
break;
case WindowsCmdConsts.Like_Image:
if (ImageLIst.SelectedItem != null)
{
FileItem item = null;
if (o != null)
{
item = ServiceProvider.Settings.DefaultSession.GetByName(o as string);
}
else
{
item = ImageLIst.SelectedItem as FileItem;
}
if (item != null)
{
item.IsLiked = !item.IsLiked;
}
}
break;
case WindowsCmdConsts.Unlike_Image:
if (ImageLIst.SelectedItem != null)
{
FileItem item = null;
if (o != null)
{
item =
ServiceProvider.Settings.DefaultSession
.GetByName(o as string);
}
else
{
item = ImageLIst.SelectedItem as FileItem;
}
if (item != null)
{
item.IsUnLiked = !item.IsUnLiked;
}
}
break;
case WindowsCmdConsts.Del_Image:
{
DeleteItem();
}
break;
case WindowsCmdConsts.SelectAll_Image:
{
ServiceProvider.Settings.DefaultSession.SelectAll();
}
break;
case WindowsCmdConsts.Select_Image:
FileItem fileItem = o as FileItem;
if (fileItem != null)
{
ImageLIst.SelectedValue = fileItem;
ImageLIst.ScrollIntoView(fileItem);
}
break;
case WindowsCmdConsts.Refresh_Image:
RefreshImage();
break;
case WindowsCmdConsts.Zoom_Image_Fit:
ZoomAndPanControl.ScaleToFit();
break;
case WindowsCmdConsts.Zoom_Image_60:
ZoomToFocus();
LoadFullRes();
ZoomAndPanControl.ZoomTo(0.6);
break;
case WindowsCmdConsts.Zoom_Image_100:
ZoomToFocus();
LoadFullRes();
ZoomAndPanControl.ZoomTo(1.0);
break;
case WindowsCmdConsts.Zoom_Image_200:
ZoomToFocus();
LoadFullRes();
ZoomAndPanControl.ZoomTo(2.0);
break;
case WindowsCmdConsts.RotateLeft:
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
item.Rotation--;
}
}
break;
case WindowsCmdConsts.RotateRight:
{
FileItem item =
ImageLIst.SelectedItem as FileItem;
if (item != null)
{
item.Rotation++;
}
}
break;
case WindowsCmdConsts.ViewExternal:
OpenInExternalViewer();
break;
case WindowsCmdConsts.ViewExplorer:
OpenInExplorer();
break;
case WindowsCmdConsts.RefreshDisplay:
if (LayoutViewModel.ZoomIndex == 0)
{
ZoomAndPanControl.ScaleToFit();
}
break;
}
if (cmd.StartsWith(WindowsCmdConsts.ZoomPoint))
{
if (ZoomAndPanControl != null && cmd.Contains("_"))
{
var vals = cmd.Split('_');
if (vals.Count() > 2)
{
double x;
double y;
double.TryParse(vals[1], out x);
double.TryParse(vals[2], out y);
//if (cmd.EndsWith("!"))
// // ZoomAndPanControl.SnapToRation(x, y);
//else
//{
// // ZoomAndPanControl.AnimatedSnapToRation(x, y);
//}
}
}
}
}
catch (Exception exception)
{
Log.Error("Unable to process event ", exception);
}
}
// Zoom the viewport in by a small increment
public static void ZoomIn(ZoomAndPanControl z, Point contentZoomCenter)
{
z.ZoomAboutPoint(z.ContentScale + 0.1, contentZoomCenter);
}
