public bool Update()
{
if (colorChooser == null && !dataAccess.GuiThread.WaitsToInvoke) dataAccess.GuiThread.Invoke(OpenColorDialog);
if (colorChooser != null)
{
editData.Collage.BackgroundColor = colorChooser.SelectedColor;
if (colorChooser.Response != Gtk.ResponseType.None && colorChooser.Response != Gtk.ResponseType.Ok)
{
editData.Collage.BackgroundColor = startColor;
colorChooser.Destroy();
colorChooser = null;
return false;
}
if (colorChooser.Response == Gtk.ResponseType.Ok)
{
Command command = new Command(ExecuteColorChange, ExecuteColorChange, colorChooser.SelectedColor, "Change Background Color");
command.SetUndoData(startColor);
editData.UndoManager.AddCommand(command);
colorChooser.Destroy();
colorChooser = null;
return false;
}
}
return true;
}
public bool Update()
{
if (dataAccess.Input.ScrollWheelDifference != 0) startTime = DateTime.Now;
foreach (Image image in editData.SelectedImages)
{
image.Width *= (dataAccess.Input.ScrollWheelDifference / 2000f) + 1;
image.Width = Math.Max(image.Width, 0.01f);
}
bool continueScale = (DateTime.Now - startTime).Milliseconds < 300 // stop when the time is up
&& !dataAccess.Input.IsStrg // stop when the user wants to zoom instead of scale
&& !(dataAccess.Input.IsLeftButtonDown && (!editData.SelectedImages.Contains(editData.ImageUnderMouse) || editData.ImageUnderMouse == null)); // stop when the user clicks somewhere, where no selection is
if (!continueScale)
{
float[] newWidth = new float[editData.SelectedImages.Count];
for (int i = 0; i < editData.SelectedImages.Count; i++)
{
newWidth[i] = editData.SelectedImages[i].Width;
}
Command command = new Command(ExecuteScale, ExecuteScale, newWidth, "Scale Selected Images");
command.SetUndoData(startWidth);
editData.UndoManager.AddCommand(command);
}
return continueScale;
}
public bool Update()
{
bool continueMove = dataAccess.Input.IsLeftButtonDown;
if (continueMove)
{
foreach (Image image in editData.SelectedImages)
{
image.SetCenterInBoundary(editData.DrawRectangle.Rectangle, image.GetCenterInBoundary(editData.DrawRectangle.Rectangle) + dataAccess.Input.MouseDifferenceVector);
}
totalMove += dataAccess.Input.MouseDifferenceVector;
}
else
{
Command command = new Command(ExecuteMove, ExecuteMove, totalMove, "Move Selected Images");
command.SetUndoData(-totalMove);
editData.UndoManager.AddCommand(command);
}
return continueMove;
}
public bool Start()
{
if (editData.SelectedImages.Count > 0)
{
Image newBackgroundImage = editData.SelectedImages.First();
ImageData newImageData = new ImageData();
newImageData.Center = new Vector2(0.5f);
newImageData.Rotation = 0f;
newImageData.Width = 1f;
int oldIndex = editData.Collage.Images.IndexOf(newBackgroundImage);
Command command = new Command(ExecuteSetAsBackground, UndoSetAsBackground, new List<object>() { oldIndex, newImageData }, "Set To Front");
command.SetUndoData(new List<object>() { oldIndex, newBackgroundImage.Data });
editData.UndoManager.ExecuteAndAddCommand(command);
}
return false;
}
public bool Update()
{
foreach(Image image in editData.SelectedImages)
{
Vector2 difference = dataAccess.Input.MousePositionVector - image.GetCenterInBoundary(editData.DrawRectangle.Rectangle);
image.Rotation = (float)Math.Atan2(difference.Y, difference.X) + rotationOffset[editData.SelectedImages.IndexOf(image)];
}
bool continueRotation = dataAccess.Input.IsRightButtonDown;
if(!continueRotation)
{
float[] newRotation = new float[editData.SelectedImages.Count];
for (int i = 0; i < editData.SelectedImages.Count; i++)
{
newRotation[i] = editData.SelectedImages[i].Rotation;
}
Command command = new Command(ExecuteScale, ExecuteScale, newRotation, "Scale Selected Images");
command.SetUndoData(startRotation);
editData.UndoManager.AddCommand(command);
}
return continueRotation;
}
public bool Update()
{
// allow to zoom and move the view
editData.DrawRectangle.Zoom(-dataAccess.Input.ScrollWheelDifference / 10f, dataAccess.Input.MousePositionVector);
if (dataAccess.Input.IsMiddleButtonDown) editData.DrawRectangle.Move(dataAccess.Input.MouseDifferenceVector);
UpdateButtons();
if(IsCanceled())
{
editData.DrawRectangle.AspectRatio = startAspectRatio;
return false;
}
if (IsConfirmed())
{
Command command = new Command(ExecuteAspectRatioChange, ExecuteAspectRatioChange, editData.Collage.AspectRatio, "Change Aspect Ratio");
command.SetUndoData(startAspectRatio);
editData.UndoManager.AddCommand(command);
return false;
}
else
{
Rectangle newDrawPosition = editData.DrawRectangle.Rectangle;
// change size
if (rightMoveButton.IsDown) newDrawPosition.Width += dataAccess.Input.MouseDifferencePoint.X;
if (downMoveButton.IsDown) newDrawPosition.Height += dataAccess.Input.MouseDifferencePoint.Y;
// set minimum size
if (newDrawPosition.Width < 50) newDrawPosition.Width = 50;
if (newDrawPosition.Height < 50) newDrawPosition.Height = 50;
editData.DrawRectangle.SetRectangle(newDrawPosition);
SetButtonPositions();
return true;
}
}
public bool Update()
{
if(dataAccess.Input.IsKeyPressed(Keys.Escape))
{
editData.SelectedImages.Clear();
editData.SelectedImages.AddRange(selectionBefore);
return false;
}
if (dataAccess.Input.IsLeftButtonReleased || dataAccess.Input.AreKeysPressed(Keys.Enter))
{
Command command = new Command(ExecuteSelectionChange, ExecuteSelectionChange, new List<Image>(editData.SelectedImages), "Random Selection");
command.SetUndoData(selectionBefore);
editData.UndoManager.AddCommand(command);
return false;
}
else
{
selectionFraction = dataAccess.Input.MousePositionVector.X / (float)dataAccess.GraphicsDevice.Viewport.Width;
selectionFraction = MathHelper.Clamp(selectionFraction, 0, 1);
editData.SelectedImages.Clear();
editData.SelectedImages.AddRange(randomOrder.GetRange(0, (int)Math.Floor(randomOrder.Count * selectionFraction)));
return true;
}
}
public bool Start()
{
List<object> currentData = GetCurrentData();
List<object> calculationData = CalculateAutoPosition();
Command command = new Command(ExecuteAutoPosition, ExecuteAutoPosition, calculationData, "Auto Position");
command.SetUndoData(currentData);
editData.UndoManager.ExecuteAndAddCommand(command);
return false;
}