public IEnumerator <object> Task()
{
var rulerWidget = timeline.Ruler.RootWidget;
var input = rulerWidget.Input;
while (true)
{
if (input.WasMousePressed())
{
yield return(null);
using (Document.Current.History.BeginTransaction()) {
int initialCurrentColumn = CalcColumn(rulerWidget.LocalMousePosition().X);
Document.Current.AnimationFrame = initialCurrentColumn;
var saved = CoreUserPreferences.Instance.StopAnimationOnCurrentFrame;
// Dirty hack: prevent creating RestoreAnimationsTimesComponent
// in order to stop running animation on clicked frame (RBT-2887)
CoreUserPreferences.Instance.StopAnimationOnCurrentFrame = true;
SetCurrentColumn.Perform(initialCurrentColumn);
CoreUserPreferences.Instance.StopAnimationOnCurrentFrame = saved;
int previousColumn = -1;
var marker = Document.Current.Animation.Markers.GetByFrame(initialCurrentColumn);
bool isShifting = false;
while (input.IsMousePressed())
{
bool isEditing = input.IsKeyPressed(Key.Control);
bool startShifting = isEditing && input.IsKeyPressed(Key.Shift);
isShifting = isShifting && startShifting;
var cw = TimelineMetrics.ColWidth;
var mp = rulerWidget.LocalMousePosition().X;
if (mp > rulerWidget.Width - cw / 2)
{
timeline.OffsetX += cw;
}
else if (mp < cw / 2)
{
timeline.OffsetX = Math.Max(0, timeline.OffsetX - cw);
}
int newColumn = CalcColumn(mp);
if (newColumn == previousColumn)
{
yield return(null);
continue;
}
// Evgenii Polikutin: don't Undo to avoid animation cache invalidation when just scrolling
// Evgenii Polikutin: yet we have to sacrifice performance when editing document
SetCurrentColumn.IsFrozen = !isEditing;
SetCurrentColumn.RollbackHistoryWithoutScrolling();
SetCurrentColumn.IsFrozen = false;
if (isEditing && !input.WasMousePressed())
{
if (isShifting)
{
ShiftTimeline(CalcColumn(mp));
}
else if (startShifting && CalcColumn(mp) == initialCurrentColumn)
{
isShifting = true;
}
else if (!startShifting && marker != null)
{
DragMarker(marker, CalcColumn(mp));
}
}
// Evgenii Polikutin: we need operation to backup the value we need, not the previous one
Document.Current.AnimationFrame = initialCurrentColumn;
SetCurrentColumn.Perform(newColumn);
timeline.Ruler.MeasuredFrameDistance = timeline.CurrentColumn - initialCurrentColumn;
previousColumn = newColumn;
DockHierarchy.Instance.InvalidateWindows();
yield return(null);
}
Document.Current.History.CommitTransaction();
timeline.Ruler.MeasuredFrameDistance = 0;
}
}
yield return(null);
}
}
public IEnumerator <object> Task()
{
var rulerWidget = timeline.Ruler.RootWidget;
var input = rulerWidget.Input;
while (true)
{
if (input.WasMousePressed())
{
Operations.SetCurrentColumn.Processor.CacheAnimationsStates = true;
using (Document.Current.History.BeginTransaction()) {
int initialColumnUnderMouse = CalcColumn(rulerWidget.LocalMousePosition().X);
int initialCurrentColumn = timeline.CurrentColumn;
int previousColumn = -1;
var marker = Document.Current.Container.Markers.GetByFrame(initialColumnUnderMouse);
while (input.IsMousePressed())
{
bool isEditing = input.IsKeyPressed(Key.Control);
bool isShifting = isEditing && input.IsKeyPressed(Key.Shift);
var cw = TimelineMetrics.ColWidth;
var mp = rulerWidget.LocalMousePosition().X;
if (mp > rulerWidget.Width - cw / 2)
{
timeline.OffsetX += cw;
}
else if (mp < cw / 2)
{
timeline.OffsetX = Math.Max(0, timeline.OffsetX - cw);
}
int newColumn = CalcColumn(mp);
if (newColumn == previousColumn)
{
yield return(null);
continue;
}
// Evgenii Polikutin: don't Undo to avoid animation cache invalidation when just scrolling
// Evgenii Polikutin: yet we have to sacrifice performance when editing document
SetCurrentColumn.IsFrozen = !isEditing;
SetCurrentColumn.RollbackHistoryWithoutScrolling();
SetCurrentColumn.IsFrozen = false;
if (isEditing && !input.WasMousePressed())
{
if (isShifting)
{
ShiftTimeline(CalcColumn(mp));
}
else if (marker != null)
{
DragMarker(marker, CalcColumn(mp));
}
}
// Evgenii Polikutin: we need operation to backup the value we need, not the previous one
Document.Current.AnimationFrame = initialCurrentColumn;
Operations.SetCurrentColumn.Perform(CalcColumn(mp));
timeline.Ruler.MeasuredFrameDistance = timeline.CurrentColumn - initialColumnUnderMouse;
if (newColumn == initialCurrentColumn && previousColumn != initialCurrentColumn)
{
Document.ForceAnimationUpdate();
}
previousColumn = newColumn;
Window.Current.Invalidate();
yield return(null);
}
timeline.Ruler.MeasuredFrameDistance = 0;
Operations.SetCurrentColumn.Processor.CacheAnimationsStates = false;
Document.Current.History.CommitTransaction();
}
}
yield return(null);
}
}