public void Undo()
{
// ensure that the current tool's modifications are added to the history first (e.g. editing text)
PintaCore.Tools.CurrentTool.DoCommit();
if (historyPointer < 0)
{
throw new InvalidOperationException("Undo stack is empty");
}
else
{
BaseHistoryItem item = history[historyPointer];
item.Undo();
item.State = HistoryItemState.Redo;
ListStore.SetValue(item.Id, 0, item);
history[historyPointer] = item;
historyPointer--;
}
if (historyPointer == 0)
{
document.IsDirty = false;
PintaCore.Actions.Edit.Undo.Sensitive = false;
CanUndo = false;
}
PintaCore.Actions.Edit.Redo.Sensitive = true;
CanRedo = true;
PintaCore.History.OnActionUndone();
}
public void Redo()
{
if (historyPointer >= history.Count - 1)
{
throw new InvalidOperationException("Redo stack is empty");
}
historyPointer++;
BaseHistoryItem item = history[historyPointer];
item.Redo();
item.State = HistoryItemState.Undo;
ListStore.SetValue(item.Id, 0, item);
history[historyPointer] = item;
if (historyPointer == history.Count - 1)
{
PintaCore.Actions.Edit.Redo.Sensitive = false;
CanRedo = false;
}
if (item.CausesDirty)
{
document.IsDirty = true;
}
if (history.Count > 1)
{
PintaCore.Actions.Edit.Undo.Sensitive = true;
CanUndo = true;
}
PintaCore.History.OnActionRedone();
}
public void Undo()
{
if (historyPointer < 0)
{
throw new InvalidOperationException("Undo stack is empty");
}
else
{
BaseHistoryItem item = history[historyPointer];
item.Undo();
item.State = HistoryItemState.Redo;
ListStore.SetValue(item.Id, 0, item);
history[historyPointer] = item;
historyPointer--;
}
if (historyPointer == 0)
{
document.IsDirty = false;
PintaCore.Actions.Edit.Undo.Sensitive = false;
CanUndo = false;
}
PintaCore.Actions.Edit.Redo.Sensitive = true;
CanRedo = true;
PintaCore.History.OnActionUndone();
}
protected internal void OnHistoryItemRemoved(BaseHistoryItem item)
{
if (HistoryItemRemoved != null)
{
HistoryItemRemoved(this, new HistoryItemRemovedEventArgs(item));
}
}
public void PushNewItem(BaseHistoryItem item)
{
// If we have un-did items on the stack, they
// all get destroyed before we add a new item
while (items.Count - 1 > stack_pointer) {
BaseHistoryItem bhi = items[items.Count - 1];
items.RemoveAt (items.Count - 1);
bhi.Dispose ();
PintaCore.Actions.Edit.Redo.Sensitive = false;
// TODO: Delete from ListStore
}
items.Add (item);
stack_pointer++;
PintaCore.Workspace.IsDirty = true;
PintaCore.Actions.Edit.Undo.Sensitive = true;
OnHistoryItemAdded (item);
}
public void PushNewItem(BaseHistoryItem newItem)
{
//Remove all old redos starting from the end of the list
for (int i = history.Count - 1; i >= 0; i--)
{
BaseHistoryItem item = history[i];
if (item.State == HistoryItemState.Redo)
{
history.RemoveAt(i);
item.Dispose();
//Remove from ListStore
ListStore.Remove(ref item.Id);
}
else if (item.State == HistoryItemState.Undo)
{
break;
}
}
//Add new undo to ListStore
newItem.Id = ListStore.AppendValues(newItem);
history.Add(newItem);
historyPointer = history.Count - 1;
if (newItem.CausesDirty)
{
document.IsDirty = true;
}
if (history.Count > 1)
{
PintaCore.Actions.Edit.Undo.Sensitive = true;
CanUndo = true;
}
PintaCore.Actions.Edit.Redo.Sensitive = false;
CanRedo = false;
PintaCore.History.OnHistoryItemAdded(newItem);
}
public void PushNewItem (BaseHistoryItem newItem)
{
//Remove all old redos starting from the end of the list
for (int i = history.Count - 1; i >= 0; i--) {
BaseHistoryItem item = history[i];
if (item.State == HistoryItemState.Redo) {
history.RemoveAt(i);
item.Dispose();
//Remove from ListStore
ListStore.Remove (ref item.Id);
} else if (item.State == HistoryItemState.Undo) {
break;
}
}
//Add new undo to ListStore
newItem.Id = ListStore.AppendValues (newItem);
history.Add (newItem);
historyPointer = history.Count - 1;
if (newItem.CausesDirty)
document.IsDirty = true;
if (history.Count > 1) {
PintaCore.Actions.Edit.Undo.Sensitive = true;
CanUndo = true;
}
PintaCore.Actions.Edit.Redo.Sensitive = false;
CanRedo = false;
PintaCore.History.OnHistoryItemAdded (newItem);
}
protected void OnHistoryItemRemoved(BaseHistoryItem item)
{
if (HistoryItemRemoved != null)
HistoryItemRemoved (this, new HistoryItemRemovedEventArgs (item));
}
protected internal void OnHistoryItemAdded (BaseHistoryItem item)
{
if (HistoryItemAdded != null)
HistoryItemAdded (this, new HistoryItemAddedEventArgs (item));
}
public void PushNewItem (BaseHistoryItem newItem)
{
PintaCore.Workspace.ActiveWorkspace.History.PushNewItem (newItem);
}
public HistoryItemRemovedEventArgs(BaseHistoryItem item)
{
Item = item;
}
public void Push(BaseHistoryItem item)
{
history_stack.Add(item);
}
public void PushNewItem(BaseHistoryItem newItem)
{
PintaCore.Workspace.ActiveWorkspace.History.PushNewItem(newItem);
}
public HistoryItemRemovedEventArgs (BaseHistoryItem item)
{
Item = item;
}
public HistoryItemAddedEventArgs(BaseHistoryItem item)
{
Item = item;
}
public void Push (BaseHistoryItem item)
{
history_stack.Add (item);
}
public HistoryItemAddedEventArgs (BaseHistoryItem item)
{
Item = item;
}
