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TODO features:

Browse Source 
Functionality:
- Rewrite history class so it tracks all changes, not only a canvas changes

Bugs fixed:
- In some cases after switching to a symbol dotPanel mouse move causes "Out of range" exception (history.Pre after width change?)
This commit is contained in:
Anton Mukhin
2025-06-02 13:37:35 +03:00
parent 1c034fded1
commit d1d653bc34
3 changed files with 93 additions and 90 deletions
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168
McBitFont/ChangeHistory.cs
View File

@@ -6,19 +6,18 @@ using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using static McBitFont.ChangeHistory;
using static McBitFont.MainForm;
namespace McBitFont {
internal class ChangeHistory {
private MainForm mainForm;
private List<ChangeType> timeline = [];
private List<ChangeEvent> timeline = [];
private List<FrameMiniature> canvasChanges = [];
private List<List<FrameMiniature>> fontChanges = [];
private List<int> selFrameChanges = [];
private List<int> selectionChanges = [];
private int canvasIndex = 0;
private int fontIndex = 0;
private int selFrameIndex = 0;
private int selectionIndex = 0;
public int Depth { get; set; }
public int Index { get; set; } = -1;
public int Count {
@@ -30,7 +29,6 @@ namespace McBitFont {
public int Redos {
get { return Index < 0 ? Count : Count - Index - 1; }
}
public bool HistoryAction { get; set; } = false;
public bool Doing { get; set; } = false;
// Constructor
@@ -38,32 +36,34 @@ namespace McBitFont {
timeline = [];
canvasChanges = [];
fontChanges = [];
selFrameChanges = [];
selectionChanges = [];
mainForm = form;
Depth = depth;
ResetIndices();
Add();
HistoryAction = false;
Doing = false;
}
private void ResetIndices() {
Index = -1;
canvasIndex = 0;
fontIndex = 0;
selFrameIndex = 0;
selectionIndex = 0;
}
public enum ChangeType {
None = 0,
Canvas = 1, // Changes made to canvas
Font = 2, // Symbol width has been changed
Frame = 3 // Selected another frame
Canvas = 1, // Changes made to canvas
Font = 2, // Symbol width has been changed
Selection = 3 // Selected another frame
}
public class ChangeEvent(ChangeType type, FrameMiniature? canvas = null) {
public ChangeType Type { get; set; } = type;
public FrameMiniature? Canvas { get; set; } = canvas;
}
//public class ChangeEvent(ChangeType type, int index) {
// public ChangeType Type { get; set; } = type;
// public int Index { get; set; } = index;
//}
private static FrameMiniature CopyFrameSimple(FrameMiniature f) {
FrameMiniature newf = new(f.code, f.width, f.height);
@@ -75,14 +75,14 @@ namespace McBitFont {
timeline.Clear();
canvasChanges.Clear();
fontChanges.Clear();
selFrameChanges.Clear();
selectionChanges.Clear();
ResetIndices();
Add();
}
// Remove from a proper list by change type
private bool RemoveByType(ChangeType ct, bool first = true) {
switch (ct) {
private bool RemoveByType(ChangeEvent ce, bool first = true) {
switch (ce.Type) {
case ChangeType.Canvas:
if (canvasChanges.Count <= 1) return false;
if ((first && canvasIndex > 0) || (!first && canvasIndex == canvasChanges.Count - 1)) canvasIndex--;
@@ -91,12 +91,20 @@ namespace McBitFont {
case ChangeType.Font:
if (fontChanges.Count <= 1) return false;
if ((first && fontIndex > 0) || (!first && fontIndex == fontChanges.Count - 1)) fontIndex--;
if (ce.Canvas != null) {
if ((first && canvasIndex > 0) || (!first && canvasIndex == canvasChanges.Count - 1)) canvasIndex--;
canvasChanges.Remove((FrameMiniature)ce.Canvas);
}
fontChanges.RemoveAt(first ? 0 : fontChanges.Count - 1);
break;
case ChangeType.Frame:
if (selFrameChanges.Count <= 1) return false;
if ((first && selFrameIndex > 0) || (!first && selFrameIndex == selFrameChanges.Count - 1)) selFrameIndex--;
selFrameChanges.RemoveAt(first ? 0 : selFrameChanges.Count - 1);
case ChangeType.Selection:
if (selectionChanges.Count <= 1) return false;
if ((first && selectionIndex > 0) || (!first && selectionIndex == selectionChanges.Count - 1)) selectionIndex--;
if (ce.Canvas != null) {
if ((first && canvasIndex > 0) || (!first && canvasIndex == canvasChanges.Count - 1)) canvasIndex--;
canvasChanges.Remove((FrameMiniature)ce.Canvas);
}
selectionChanges.RemoveAt(first ? 0 : selectionChanges.Count - 1);
break;
default:
return false;
@@ -111,8 +119,8 @@ namespace McBitFont {
// Remove oldest event
private bool RemoveOldest() {
if (Count == 0) return false;
ChangeType ct = timeline.First();
RemoveByType(ct);
ChangeEvent ce = timeline.First();
RemoveByType(ce);
return true;
}
@@ -120,8 +128,8 @@ namespace McBitFont {
// Remove last event
public bool RemoveLast() {
if (Count == 0) return false;
var ct = timeline.Last();
RemoveByType(ct, false);
var ce = timeline.Last();
RemoveByType(ce, false);
return true;
}
@@ -134,17 +142,7 @@ namespace McBitFont {
timeline.RemoveRange( Index + 1, Count - Index - 1);
canvasChanges.RemoveRange( canvasIndex + 1, canvasChanges.Count - canvasIndex - 1);
fontChanges.RemoveRange( fontIndex + 1, fontChanges.Count - fontIndex - 1);
selFrameChanges.RemoveRange(selFrameIndex + 1, selFrameChanges.Count - selFrameIndex - 1);
}
}
// Checks and resets HistoryAction property to abort Add action
private bool CheckHistoryAction() {
if (HistoryAction) {
HistoryAction = false;
return true;
} else {
return false;
selectionChanges.RemoveRange(selectionIndex + 1, selectionChanges.Count - selectionIndex - 1);
}
}
@@ -158,24 +156,23 @@ namespace McBitFont {
}
// Add canvas change
public void Add(FrameMiniature f, bool useIndex = true) {
if (Doing) return;
if (useIndex && CheckHistoryAction()) return;
public FrameMiniature? Add(FrameMiniature f, bool useIndex = true) {
if (Doing) return null ;
TruncateTail();
if (Count > Depth) RemoveOldest();
if (Count >= Depth) RemoveOldest();
canvasChanges.Add(CopyFrameSimple(f));
if (useIndex) {
timeline.Add(ChangeType.Canvas);
timeline.Add(new ChangeEvent(ChangeType.Canvas));
Index++;
canvasIndex++;
}
return canvasChanges.Last();
}
// Add Font change
public void Add(List<FrameMiniature> ff, bool useIndex = true) {
if (Doing) return;
if (useIndex && CheckHistoryAction()) return;
TruncateTail();
var l = new List<FrameMiniature>();
@@ -183,44 +180,52 @@ namespace McBitFont {
l.Add(CopyFrameSimple(f));
}
if (Count > Depth) RemoveOldest();
if (Count >= Depth) RemoveOldest();
fontChanges.Add(l);
if (useIndex) {
timeline.Add(ChangeType.Font);
var canv = Add(mainForm.f, false);
canvasIndex++;
timeline.Add(new ChangeEvent(ChangeType.Font, canv));
Index++;
fontIndex++;
Add(mainForm.f);
}
}
// Add Frame selection change
public void Add(int code, bool useIndex = true) {
if (Doing) return;
if (useIndex && CheckHistoryAction()) return;
if (useIndex) {
Add(mainForm.frames.Find(x => x.code == code));
//Add(mainForm.f);
}
TruncateTail();
if (Count > Depth) RemoveOldest();
selFrameChanges.Add(code);
if (Count >= Depth) RemoveOldest();
selectionChanges.Add(code);
if (useIndex) {
timeline.Add(ChangeType.Frame);
var canv = Add(mainForm.f, false);
canvasIndex++;
timeline.Add(new ChangeEvent(ChangeType.Selection, canv));
Index++;
selFrameIndex++;
selectionIndex++;
}
}
private void Do(bool undo = true) {
if (!undo && Index >= Count - 1) return;
Doing = true;
var ct = timeline.ElementAt(Index + (undo ? 0 : 1));
var ce = timeline.ElementAt(Index + (undo ? 0 : 1));
int dIndex = undo ? -1 : 1;
switch (ct) {
FrameMiniature fff;
switch (ce.Type) {
case ChangeType.Canvas:
canvasIndex += dIndex;
mainForm.f = CopyFrameSimple(canvasChanges[canvasIndex]);
mainForm.SetModified();
mainForm.nudX.ValueChanged -= mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged -= mainForm.nudY_ValueChanged;
mainForm.nudY.Value = mainForm.dotHeight = canvasChanges[canvasIndex].height;
mainForm.nudX.Value = mainForm.dotWidth = canvasChanges[canvasIndex].width;
mainForm.SetNewWH();
mainForm.nudX.ValueChanged += mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged += mainForm.nudY_ValueChanged;
break;
case ChangeType.Font:
Cursor.Current = Cursors.WaitCursor;
@@ -231,6 +236,7 @@ namespace McBitFont {
selCode = Convert.ToInt32(selItem);
}
fontIndex += dIndex;
canvasIndex += dIndex;
mainForm.frames.Clear();
mainForm.miniList.Clear();
mainForm.ilMiniatures.Images.Clear();
@@ -238,7 +244,7 @@ namespace McBitFont {
mainForm.frames.Add(CopyFrameSimple(f));
}
mainForm.FillFrameLists();
FrameMiniature fff;
if (selItem != "") {
var selection = mainForm.miniList.Items.Find(selItem, false);
if (selection.Length > 0) selection[0].Selected = true;
@@ -248,44 +254,38 @@ namespace McBitFont {
fff = mainForm.frames[0];
}
mainForm.f = mainForm.CopyFrame(fff);
mainForm.nudX.ValueChanged -= mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged -= mainForm.nudY_ValueChanged;
mainForm.nudY.Value = mainForm.dotHeight = fff.height;
mainForm.nudX.Value = mainForm.dotWidth = fff.width;
mainForm.SetNewWH();
mainForm.nudX.ValueChanged += mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged += mainForm.nudY_ValueChanged;
Cursor.Current = Cursors.Default;
break;
case ChangeType.Frame:
HistoryAction = true;
selFrameIndex += dIndex;
var s = selFrameChanges[selFrameIndex].ToString().PadLeft(3, '0');
case ChangeType.Selection:
selectionIndex += dIndex;
canvasIndex += dIndex;
var s = selectionChanges[selectionIndex].ToString().PadLeft(3, '0');
var sel = mainForm.miniList.Items.Find(s, false);
if (sel.Length > 0) sel[0].Selected = true;
fff = mainForm.frames.Find(x => x.code == selectionChanges[selectionIndex]);
mainForm.f = CopyFrameSimple(fff);
mainForm.nudX.ValueChanged -= mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged -= mainForm.nudY_ValueChanged;
mainForm.nudY.Value = mainForm.dotHeight = fff.height;
mainForm.nudX.Value = mainForm.dotWidth = fff.width;
mainForm.SetNewWH();
mainForm.nudX.ValueChanged += mainForm.nudX_ValueChanged;
mainForm.nudY.ValueChanged += mainForm.nudY_ValueChanged;
break;
default:
break;
}
Index += dIndex;
Doing = false;
// Frame select change + Canvas change workarounds
if (ct == ChangeType.Frame && undo) {
Undo();
return;
}
if (Index < Count - 1) {
var nextctframe = timeline.ElementAt(Index + 1) == ChangeType.Frame;
if (ct == ChangeType.Canvas && !undo && nextctframe) {
Redo();
return;
}
}
//Font change + Canvas change workarounds
if (Index >= 0) {
var prevctfont = timeline.ElementAt(Index) == ChangeType.Font;
if (ct == ChangeType.Canvas && undo && prevctfont) {
Undo();
return;
}
}
if (!undo && ct == ChangeType.Font)
Redo();
}
// Undo last change

11
McBitFont/Form1.cs
View File

@@ -76,7 +76,7 @@ namespace McBitFont {
this.dotPanel.MouseWheel += new MouseEventHandler(this.DotPanel_MouseWheel);
}
private void SetNewWH() {
public void SetNewWH() {
w = pixelOffset + dotWidth * (cellSize + gap);
h = pixelOffset + dotHeight * (cellSize + gap);
}
@@ -85,7 +85,7 @@ namespace McBitFont {
lblSelection.Text = width.ToString() + ',' + height.ToString();
}
private void SetModified(bool modif = true, bool prj = false) {
public void SetModified(bool modif = true, bool prj = false) {
string suffix = "";
if (prj) {
prjModified = modif;
@@ -197,7 +197,7 @@ namespace McBitFont {
}
}
private void nudX_ValueChanged(object sender, EventArgs e) {
public void nudX_ValueChanged(object sender, EventArgs e) {
Cursor.Current = Cursors.WaitCursor;
if (monospaced) {
Bitmap bmp;
@@ -216,10 +216,13 @@ namespace McBitFont {
}
DotResize((int)nudX.Value, dotHeight);
if (monospaced) history.Add(frames);
else history.Add(f);
Cursor.Current = Cursors.Default;
}
private void nudY_ValueChanged(object sender, EventArgs e) {
public void nudY_ValueChanged(object sender, EventArgs e) {
Cursor.Current = Cursors.WaitCursor;
Bitmap bmp;
for (int i = 0; i < frames.Count; i++) {

4
TODO.txt
View File

@@ -3,9 +3,9 @@ Application:
V Copy-Paste now uses System clipboard and it is possible to copy-paste from/to different instances of running program
Functionality:
- Rewrite history class so it tracks all changes, not only a canvas changes
V Rewrite history class so it tracks all changes, not only a canvas changes
Bugs:
- In some cases after switching to a symbol dotPanel mouse move causes "Out of range" exception (history.Pre after width change?)
V In some cases after switching to a symbol dotPanel mouse move causes "Out of range" exception (history.Pre after width change?)
V Switching between symbols while select tool is active and small area selected trows an error
V Full frame Copy in Clipboard does not respect selection on Paste operation