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TODO feature: Undo/Redo for canvas changes

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This commit is contained in:
Anton Mukhin
2025-05-22 01:10:38 +03:00
parent ce3b0ddd94
commit 038fd42841
4 changed files with 104 additions and 63 deletions
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39
McBitFont/CanvasHistory.cs
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@@ -12,11 +12,13 @@ namespace McBitFont {
public int Depth { get; set; }
public int Index { get; set; }
public int Count {
get { return stack.Count; }
get { return stack.Count - 1; }
}
public int Redos {
get {
return Count - Index - 1;
var r = Count - Index - 1;
return r < 0 ? 0 : r;
}
}
public int Undos {
@@ -26,9 +28,9 @@ namespace McBitFont {
}
public CanvasHistory(int depth = 5, int index = -1) {
public CanvasHistory(int depth = 50) {
Depth = depth;
Index = index;
Index = -1;
stack = [];
}
@@ -37,38 +39,47 @@ namespace McBitFont {
Index = -1;
}
public void Add(bool[,] data, bool useIndex = true) {
public void AddPre(MainForm.FrameMiniature f, bool useIndex = true) {
if (Count < 0) stack.Add(new bool[f.width, f.height]);
if (Index < Count - 1) {
stack.RemoveRange(Index + 1, Count - Index - 1);
}
stack.Add(data);
bool[,] d = new bool[f.width, f.height];
Array.Copy(f.data, d, f.data.Length);
stack.Insert(Count, d);
if (useIndex) {
if (Count > Depth) stack.RemoveAt(0);
else Index++;
}
}
public void AddPost(MainForm.FrameMiniature f) {
var d = stack.ElementAt(Count);
Array.Copy(f.data, d, f.data.Length);
}
public void ApplyAdded() {
if (Count > Depth)
while (Count > Depth) stack.RemoveAt(0);
else Index = Count - 1;
while (Count > Depth) stack.RemoveAt(0);
Index = Count - 1;
}
public void Remove(bool useIndex = true) {
stack.RemoveAt(stack.Count - 1);
stack.RemoveAt(Count - 1);
if (useIndex) Index--;
}
public void Undo(ref bool[,] data) {
public void Undo(MainForm.FrameMiniature f) {
if (Index < 0) return;
data = stack.ElementAt(Index);
var d = stack.ElementAt(Index);
Array.Copy(d, f.data, d.Length);
Index--;
}
public void Redo(ref bool[,] data) {
public void Redo(MainForm.FrameMiniature f) {
if (Index >= Count - 1) return;
Index++;
data = stack.ElementAt(Index);
var d = stack.ElementAt(Index + 1);
Array.Copy(d, f.data, d.Length);
}
}
}