/// <summary>
/// Edit -> Redo menu button - redo last action if it was undone
/// </summary>
private void RedoButtonClick(object sender, EventArgs e)
{
CloseAllPopUps();
if (taskControl.removed.Any())
{
taskControl.tasks.Push(taskControl.removed.Pop());
}
RestorePoint restorePoint = taskControl.redoQueue.RemoveLast();
if (restorePoint != null)
{
RestorePoint old = new RestorePoint(
imageSet.imageMode,
restorePoint.taskType,
imageSet.image.Clone(imageSet.rectangle, imageSet.image.PixelFormat),
imageSet.thumb.Clone(imageSet.thumbRectangle, imageSet.thumb.PixelFormat),
imageSet.saturation,
imageSet.brightness,
imageSet.clarity
);
taskControl.undoQueue.Add(old);
ApplyRestorePoint(restorePoint);
log.Add("Last un-done action was re-done");
}
else
{
log.Add("Action cannot be re-done, there is no other actions in the queue");
}
}
/// <summary>
/// Applies image restore point from undo/redo queue and
/// propagates to thumbnails also
/// </summary>
/// <param name="restorePoint">Restore point to be applied</param>
private void ApplyRestorePoint(RestorePoint restorePoint)
{
imageSet.image = restorePoint.image;
imageSet.thumb = restorePoint.thumb;
imageSet.saturation = restorePoint.saturation;
imageSet.brightness = restorePoint.brightness;
imageSet.clarity = restorePoint.clarity;
imageSet.thumbRed = imageSet.CopyThumbnailWithFilter(ColorFilters.RedFilter);
imageSet.thumbGreen = imageSet.CopyThumbnailWithFilter(ColorFilters.GreenFilter);
imageSet.thumbBlue = imageSet.CopyThumbnailWithFilter(ColorFilters.BlueFilter);
saturationChanging = true;
brightnessChanging = true;
clarityChanging = true;
saturationTrackBar.Value = restorePoint.saturation;
brightnessTrackBar.Value = restorePoint.brightness;
clarityTrackBar.Value = restorePoint.clarity;
saturationChanging = false;
brightnessChanging = false;
clarityChanging = false;
RedrawImageSet();
}
/// <summary>
/// Processes all tasks in main (not waiting) linked list and
/// creates restore point to undo queue
/// Waits in the while loop while another task should be executed
/// or while loop is terminated by main form signal
/// </summary>
private void Process()
{
while (form.tasksRunning)
{
if (head != null)
{
head.ongoing = true;
RestorePoint old = new RestorePoint(
form.imageSet.imageMode,
head.taskType,
form.imageSet.image.Clone(form.imageSet.rectangle, form.imageSet.image.PixelFormat),
form.imageSet.thumb.Clone(form.imageSet.thumbRectangle, form.imageSet.thumb.PixelFormat),
form.imageSet.saturation,
form.imageSet.brightness,
form.imageSet.clarity
);
undoQueue.Add(old);
redoQueue.Flush();
head.Process();
head = head.next;
if (head != null)
{
head.previous = null;
}
form.RedrawImageSet();
}
else
{
Thread.Sleep(100);
}
}
}
/// <summary>
/// Removes and returns last restore point from queue
/// </summary>
/// <returns>Last added restore point from queue</returns>
public RestorePoint RemoveLast()
{
if (free == 0)
{
free = length - 1;
}
else
{
--free;
}
RestorePoint response = data[free];
data[free] = null;
return(response);
}
/// <summary>
/// Adds restore point to free cell to restore point array
/// </summary>
/// <param name="restorePoint">Restore point to add</param>
public void Add(RestorePoint restorePoint)
{
data[free] = restorePoint;
free = (free + 1) % length;
}
