public void MouseUpEvent(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// If the left mouse button is released and the drawPreviewObject timer is active,
// stop it and premanently draw the last preview CanvasObject onto the canvas.
// Only preview object with valid parameters are being permanently drawn.
if (IntervalManager.Singleton.GetTimerStatus("drawPreviewObject"))
{
IntervalManager.Singleton.ManageTimer("drawPreviewObject", false);
CanvasObject previewObject = cm.PreviewObject.First().Key;
int[] parameters = previewObject.GetObjectParameters();
if (CheckForInvisibleObject(parameters))
{
DrawObject(previewObject.GetType().Name, parameters, true);
UpdateButtonStatus("undo");
}
}
// If the left mouse button is released and the moveSelectedObject timer is active,
// stop it and store the new coordinates of the selected object.
else if (IntervalManager.Singleton.GetTimerStatus("moveSelectedObject"))
{
IntervalManager.Singleton.ManageTimer("moveSelectedObject", false);
cm.ChangeSelectedObject(cm.SelectedObject);
}
}
}
public void MouseDownEvent(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
// If the left mouse button is pressed while the copySelectedObject timer is active,
// stop the timer and draw a permanent version of the current preview object onto the canvas.
if (IntervalManager.Singleton.GetTimerStatus("copySelectedObject"))
{
IntervalManager.Singleton.ManageTimer("copySelectedObject", false);
CanvasObject objectToDraw = cm.PreviewObject.First().Key;
DrawObject(objectToDraw.GetType().Name, objectToDraw.GetObjectParameters(), true);
}
// If the left mouse button is pressed while the moveAllObjects timer is active, stop the timer.
else if (IntervalManager.Singleton.GetTimerStatus("moveAllObjects"))
{
IntervalManager.Singleton.ManageTimer("moveAllObjects", false);
}
// If the left mouse button is pressed and there is no CanvasObject selected, start the drawPreviewObject timer.
else if (cm.SelectedObject == null)
{
startLocation = GetCursorPosition();
IntervalManager.Singleton.ManageTimer("drawPreviewObject", true);
}
// If the left mouse button is pressed and there is a CanvasObject selected, start the moveSelectedObject timer.
else if (cm.SelectedObject != null)
{
IntervalManager.Singleton.ManageTimer("moveSelectedObject", true);
}
}
}
/// <summary>
/// Makes a copy of the selected CanvasObject, and creates a preview of the new object at the cursor location.
/// </summary>
public void CopySelectedObject(object sender, EventArgs e)
{
CanvasObject selectedObject = cm.GetCanvasObject(cm.SelectedObject);
int[] data = selectedObject.GetObjectParameters();
Point location = GetCursorPosition();
data[0] = location.X;
data[1] = location.Y;
DrawObject(selectedObject.GetType().Name, data, false);
}
/// <summary>
/// Removes an entry from the allCanvasObjects collection.
/// </summary>
/// <param name="value">The PictureBox which is the value of a stored dictionary entry.</param>
public void RemoveObject(PictureBox value)
{
CanvasObject dictKey = null;
foreach (var entry in allCanvasObjects)
{
if (entry.Value == value)
{
dictKey = entry.Key;
}
}
if (dictKey != null)
{
allCanvasObjects.Remove(dictKey);
}
}
/// <summary>
/// Registers the creation of a new CanvasObject, by storing it in the allCanvasObjects and allCanvasGraphics collections.
/// </summary>
/// <param name="newObject"></param>
/// <param name="newGraphic"></param>
public void AddObject(CanvasObject newObject, PictureBox newGraphic)
{
allCanvasObjects.Add(newObject, newGraphic);
}