while ((line = file.ReadLine()) != null) {
lines.Add(line);
}
+ file.Close();
}
public ArrayList Lines {
if (y >= lines.Count) return;
string s = (string)lines[y];
- if (x >= s.Length) return;
-
- if (s.Length == 0 && x == 0) {
+ if (x >= s.Length) {
+ if (y == lines.Count - 1) return;
+ if (x > s.Length)
+ s = s.PadRight(x);
+ lines[y] = s + (string)lines[y+1];
+ lines.RemoveAt(y+1);
+ } else if (s.Length == 0 && x == 0) {
lines.RemoveAt(y);
} else {
- s.Remove(x, 1);
+ lines[y] = s.Remove(x, 1);
}
}
if (y >= lines.Count) return 0;
return ((string)lines[y]).Length;
}
+
+ public void Save(string filename) {
+ StreamWriter file = new StreamWriter(filename);
+ for (int i = 0; i < lines.Count; i++) {
+ file.Write((string)lines[i]);
+ file.Write('\n');
+ }
+ file.Close();
+ }
}
-public class TextDocument {
+public class TextDocument : IKeyPress {
private TextArray text;
+ public string filename = null;
public Cursor cursor;
-
- public ArrayList Lines {
- get {
- return text.Lines;
- }
- }
+ public Cursor textorigin;
+ private int pagewidth, pageheight;
public TextDocument() {
text = new TextArray();
public TextDocument(string filename) {
text = new TextArray(filename);
+ this.filename = filename;
+ }
+
+ public string GetTextWindow() {
+ string s = "";
+
+ for (int i = 0; i <= pageheight + 1 && textorigin.y + i < text.Lines.Count; i++) {
+ string l = (string)text.Lines[textorigin.y + i];
+ if (textorigin.x > l.Length) {
+ s += "\n";
+ } else {
+ s += l.Substring(textorigin.x) + "\n";
+ }
+ }
+ return s;
+ }
+
+ private void FixTextWindow() {
+ if (cursor.x < textorigin.x) textorigin.x = cursor.x;
+ if (cursor.y < textorigin.y) textorigin.y = cursor.y;
+ if (cursor.x > textorigin.x + pagewidth) textorigin.x = cursor.x - pagewidth;
+ if (cursor.y > textorigin.y + pageheight) textorigin.y = cursor.y - pageheight;
+ }
+
+ public void SetPageSize(int w, int h) {
+ pagewidth = w;
+ pageheight = h;
+ FixTextWindow();
}
public void MoveCursor(Gdk.Key k) {
case Gdk.Key.Home:
cursor.x = 0;
break;
+ case Gdk.Key.Page_Up:
+ cursor.y -= pageheight;
+ break;
+ case Gdk.Key.Page_Down:
+ cursor.y += pageheight;
+ break;
}
}
- public void AddChar(int c) {
- c = c & 0xFF;
- if (c > 128) return;
-
- switch(c) {
- case 8:
- int l = 0;
- if (cursor.y > 0) l = text.LineLength(cursor.y-1);
- text.Backspace(cursor.x, cursor.y);
- if (cursor.x == 0) {
- cursor.y--;
- if (cursor.y >= text.Lines.Count) return;
- cursor.x = l;
+ public void NextWord() {
+ if (cursor.x >= text.LineLength(cursor.y)) {
+ cursor.y++;
+ cursor.x = 0;
+ } else {
+ string s = (String)text.Lines[cursor.y];
+ int i = s.IndexOf(' ', cursor.x);
+ if (i == -1) {
+ cursor.y++;
+ cursor.x = 0;
} else {
- cursor.x--;
+ cursor.x = i + 1;
}
- break;
- case 13:
- text.Newline(cursor.x, cursor.y);
+ }
+ }
+
+ public void PreviousWord() {
+ if (cursor.y > text.Lines.Count) {
cursor.x = 0;
- cursor.y++;
- break;
- default:
- text.Insert(cursor.x, cursor.y, (char)c);
- cursor.x++;
- break;
+ cursor.y--;
+ } else if (cursor.y == text.Lines.Count) {
+ string s = (String)text.Lines[text.Lines.Count - 1];
+ int i = s.LastIndexOf(' ');
+ if (i == -1) {
+ cursor.x = 0;
+ } else {
+ cursor.x = i + 1;
+ }
+ cursor.y--;
+ } else if (cursor.x == 0 && cursor.y > 0) {
+ string s = (String)text.Lines[cursor.y - 1];
+ int i = s.LastIndexOf(' ');
+ if (i == -1) {
+ cursor.x = 0;
+ } else {
+ cursor.x = i + 1;
+ }
+ cursor.y--;
+ } else if (cursor.x == 0 && cursor.y == 0) {
+ return;
+ } else {
+ string s = (String)text.Lines[cursor.y];
+ if (cursor.x >= s.Length)
+ cursor.x = s.Length - 1;
+ int i = s.LastIndexOf(' ', cursor.x - 2, cursor.x - 2);
+ if (i == -1) {
+ cursor.x = 0;
+ } else {
+ cursor.x = i + 1;
+ }
}
}
+
+ [GLib.ConnectBefore ()]
+ public void KeyPress(object o, Gtk.KeyPressEventArgs args) {
+ if ((args.Event.State & Gdk.ModifierType.ControlMask) != 0) {
+ switch(args.Event.Key) {
+ case Gdk.Key.Right:
+ NextWord();
+ break;
+ case Gdk.Key.Left:
+ PreviousWord();
+ break;
+ }
+ } else if ((args.Event.State & Gdk.ModifierType.Mod1Mask) != 0) {
+ } else {
+ switch(args.Event.Key) {
+ case Gdk.Key.Up:
+ case Gdk.Key.Down:
+ case Gdk.Key.Left:
+ case Gdk.Key.Right:
+ case Gdk.Key.Page_Up:
+ case Gdk.Key.Page_Down:
+ case Gdk.Key.Home:
+ case Gdk.Key.End:
+ MoveCursor(args.Event.Key);
+ break;
+ case Gdk.Key.Delete:
+ text.Delete(cursor.x, cursor.y);
+ break;
+ case Gdk.Key.BackSpace:
+ int l = 0;
+ if (cursor.y > 0) l = text.LineLength(cursor.y-1);
+ text.Backspace(cursor.x, cursor.y);
+ if (cursor.x == 0) {
+ cursor.y--;
+ if (cursor.y >= text.Lines.Count) return;
+ cursor.x = l;
+ } else {
+ cursor.x--;
+ }
+ break;
+ case Gdk.Key.Return:
+ text.Newline(cursor.x, cursor.y);
+ cursor.x = 0;
+ cursor.y++;
+ break;
+ default:
+ AddChar((int)args.Event.KeyValue);
+ break;
+ }
+ }
+ FixTextWindow();
+ }
+
+ public void AddChar(int c) {
+ c = c & 0xFF;
+ if (c > 128) return;
+
+ text.Insert(cursor.x, cursor.y, (char)c);
+ cursor.x++;
+ }
+
+ public void Save() {
+ if (filename == null)
+ throw new InvalidOperationException("Cannot Save() without filename");
+ text.Save(filename);
+ }
+
+ public void Save(string filename) {
+ this.filename = filename;
+ Save();
+ }
}
projects / Nebula.git / blobdiff