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2002-08-07 Duncan Mak <duncan@ximian.com>

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* sample/Fifteen.cs: Added new canvas example.

svn path=/trunk/gtk-sharp/; revision=6478
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Duncan Mak 2002-08-06 17:50:25 +00:00
parent cd25ace4ba
commit e1e6059f98
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@ -1,3 +1,7 @@
2002-08-07 Duncan Mak <duncan@ximian.com>
* sample/Fifteen.cs: Added new canvas example.
2002-08-06 Duncan Mak <duncan@ximian.com>
* glue/canvasitem.c:

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sample/Fifteen.cs Normal file
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using System;
using System.Drawing;
using Gtk;
using Gdk;
using Gnome;
using GtkSharp;
public class Fifteen
{
const int PIECE_SIZE = 50;
const int SCRAMBLE_MOVES = 256;
static Window window = null;
static Canvas canvas = null;
static BoardPiece [] board;
static void Main ()
{
Application.Init ();
window = new Window ("Fifteen #");
VBox vbox = new VBox (false, 4);
vbox.BorderWidth = 4;
window.DefaultSize = new Size (300, 300);
window.Add (vbox);
window.DeleteEvent += new DeleteEventHandler (Window_Delete);
Alignment alignment = new Alignment (0.5f, 0.5f, 0.0f, 0.0f);
vbox.PackStart (alignment, true, true, 0);
Frame frame = new Frame (String.Empty);
frame.ShadowType = ShadowType.In;
alignment.Add (frame);
canvas = new Canvas ();
canvas.SetSizeRequest (PIECE_SIZE * 4 + 1, PIECE_SIZE * 4 + 1);
canvas.SetScrollRegion (0, 0, PIECE_SIZE * 4 + 1, PIECE_SIZE * 4 + 1);
frame.Add (canvas);
board = new BoardPiece [16];
for (int i = 0; i < 15; i ++) {
int y = i /4;
int x = i % 4;
board [i] = new BoardPiece (canvas.Root ());
board [i].X = (x * PIECE_SIZE);
board [i].Y = (y * PIECE_SIZE);
CanvasRect rect = new CanvasRect (board [i]);
rect.X1 = 0.0;
rect.Y2 = 0.0;
rect.X2 = PIECE_SIZE;
rect.Y2 = PIECE_SIZE;
rect.FillColor = Get_Color (i);
rect.OutlineColor = "black";
rect.WidthPixels = 0;
CanvasText text = new CanvasText (board [i]);
text.Text = (i + 1).ToString ();
text.X = PIECE_SIZE / 2.0;
text.Y = PIECE_SIZE / 2.0;
text.Font = "Sans Bold 24";
text.Anchor = AnchorType.Center;
text.FillColor = "black";
board [i].Number = i;
board [i].Position = i;
board [i].Text = text;
board [i].CanvasEvent += new CanvasEventHandler (Piece_Event);
}
// Scramble button here.
Button button = new Button ("Scamble");
vbox.PackStart (button, false, false, 0);
button.Clicked += new EventHandler (Scramble);
window.ShowAll ();
Application.Run ();
}
static string Get_Color (int piece)
{
int y = piece / 4;
int x = piece % 4;
int r = ((4 - x) * 255) / 4;
int g = ((4 - y) * 255) / 4;
int b = 128;
return String.Format ("#{0:x2}{1:x2}{2:x2}", r, g, b);
}
static void Piece_Event (object o, CanvasEventArgs args)
{
BoardPiece piece = (BoardPiece) o;
Canvas canvas = piece.Canvas;
double dx = 0.0, dy = 0.0;
switch (args.Event.Type) {
case EventType.EnterNotify:
piece.Text.FillColor = "white";
break;
case EventType.LeaveNotify:
piece.Text.FillColor = "black";
break;
case EventType.ButtonPress:
int y = piece.Position / 4;
int x = piece.Position % 4;
bool toMove = false;
if ((y > 0) && (board [(y - 1) * 4 + x] == null)) {
dx = 0.0;
dy = 1.0;
y --;
} else if ((y < 3) && (board [(y + 1) * 4 + x] == null)) {
dx = 0.0;
dy = 1.0;
y ++;
} else if ((x > 0) && (board [y * 4 + x - 1] == null)) {
dx = -1.0;
dy = 0.0;
x --;
} else if ((x < 3) && (board [y * 4 + x + 1] == null)) {
dx = 1.0;
dy = 1.0;
y ++;
} else
toMove = false;
if (toMove) {
int new_position = y * 4 + x;
board [piece.Position] = null;
board [new_position] = piece;
piece.Position = new_position;
piece.Move (dx * PIECE_SIZE, dy * PIECE_SIZE);
}
break;
default:
break;
}
}
static void Scramble (object o, EventArgs args)
{
Random rand = new Random ();
int blank,;
// find blank spot
for (position = 0; position < 16; position ++)
if (board [position] == null)
break;
for (int i = 0; i < SCRAMBLE_MOVES; i++) {
retry:
int dir = rand.Next ();
int x = 0, y = 0;
if ((dir == 0) && (position > 3)) // up
y = -1;
else if ((dir == 1) && (position < 12)) // down
y = 1;
else if ((dir == 2) && ((position % 4) != 0)) // left
x = -1;
else if ((dir == 3) && ((position % 4) != 3)) // right
x = 1;
else
goto retry;
int old_position = position + y * 4 + x;
board [position] = board [old_position];
board [position].Position = position;
board [old_position] = null;
board [position].Move (-x * PIECE_SIZE, -y * PIECE_SIZE);
canvas.UpdateNow ();
position = old_position;
}
}
static void Window_Delete (object o, DeleteEventArgs args)
{
Application.Quit ();
args.RetVal = true;
}
}
public class BoardPiece : Gnome.CanvasGroup
{
public int Number;
public int Position;
public CanvasText Text;
public BoardPiece (CanvasGroup group)
: base (group, CanvasGroup.Type)
{
}
}