public void Update(EditorState editorState, TileSetCollection tileSetCollection, Map map, int gridSize, Rectangle rect)
{
if (editorState == null || map == null)
{
return;
}
Debug.Assert(this.DeviceContext != IntPtr.Zero);
Point offset = editorState.GetMapOffset(map.Id);
int offscreenWidth = this.Size.Width;
int offscreenHeight = this.Size.Height;
Size offscreenSize = this.Size;
int tileGridSize = gridSize;
int tileStartI = Math.Max(-offset.X / tileGridSize, 0);
int tileEndI = Math.Min((offscreenWidth - offset.X) / tileGridSize + 1, map.Width);
int tileStartJ = Math.Max(-offset.Y / tileGridSize, 0);
int tileEndJ = Math.Min((offscreenHeight - offset.Y) / tileGridSize + 1, map.Height);
using (Graphics g = Graphics.FromHdc(this.DeviceContext))
{
if (0 < offscreenHeight - map.Height * gridSize)
{
NativeMethods.RECT win32Rect = new NativeMethods.RECT
{
Left = 0,
Right = offscreenWidth,
Top = map.Height * gridSize,
Bottom = offscreenHeight,
};
NativeMethods.FillRect(this.DeviceContext, ref win32Rect, (IntPtr)(NativeMethods.COLOR_BTNFACE + 1));
}
if (0 < offscreenWidth - map.Width * gridSize)
{
NativeMethods.RECT win32Rect = new NativeMethods.RECT
{
Left = map.Width * gridSize,
Right = offscreenWidth,
Top = 0,
Bottom = map.Height * gridSize,
};
NativeMethods.FillRect(this.DeviceContext, ref win32Rect, (IntPtr)(NativeMethods.COLOR_BTNFACE + 1));
}
Dictionary<Bitmap, BitmapData> bdHash = null;
try
{
bdHash = new Dictionary<Bitmap, BitmapData>();
LayerMode layerMode = editorState.LayerMode;
ScaleMode scaleMode = editorState.ScaleMode;
int reductionRatio = 0;
switch (scaleMode)
{
case ScaleMode.Scale2: reductionRatio = 1; break;
case ScaleMode.Scale4: reductionRatio = 2; break;
case ScaleMode.Scale8: reductionRatio = 4; break;
}
int halfTileGridSize = tileGridSize >> 1;
for (int layer = -1; layer < 2; layer++)
{
byte alpha = 255;
if (layerMode == LayerMode.Layer1 && layer == 1)
{
alpha = 128;
}
for (int j = tileStartJ; j < tileEndJ; j++)
{
int y = j * tileGridSize + offset.Y;
for (int i = tileStartI; i < tileEndI; i++)
{
int x = i * tileGridSize + offset.X;
if (0 <= layer)
{
Tile tile = map.GetTile(layer, i, j);
if (tileSetCollection.ContainsId(tile.TileSetId))
{
int tileId = tile.TileId;
TileSet tileSet = tileSetCollection.GetItem(tile.TileSetId);
Bitmap bitmap = tileSet.GetBitmap(scaleMode);
BitmapData srcBD;
if (!bdHash.ContainsKey(bitmap))
{
srcBD = bdHash[bitmap] = bitmap.LockBits(new Rectangle
{
Size = bitmap.Size,
}, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
}
else
{
srcBD = bdHash[bitmap];
}
int srcX = (tileId % Util.PaletteHorizontalCount) * tileGridSize;
int srcY = (tileId / Util.PaletteHorizontalCount) * tileGridSize;
Util.DrawBitmap(this.Pixels, offscreenSize,
x, y, tileGridSize, tileGridSize, srcBD, srcX, srcY, alpha);
}
}
else
{
if (scaleMode == ScaleMode.Scale1)
{
this.DrawRectOffscreen(new Rectangle
{
X = x,
Y = y,
Width = halfTileGridSize,
Height = halfTileGridSize,
}, 0x00, 0x00, 0x80);
this.DrawRectOffscreen(new Rectangle
{
X = x + halfTileGridSize,
Y = y,
Width = halfTileGridSize,
Height = halfTileGridSize,
}, 0x00, 0x00, 0x40);
this.DrawRectOffscreen(new Rectangle
{
X = x,
Y = y + halfTileGridSize,
Width = halfTileGridSize,
Height = halfTileGridSize,
}, 0x00, 0x00, 0x40);
this.DrawRectOffscreen(new Rectangle
{
X = x + halfTileGridSize,
Y = y + halfTileGridSize,
Width = halfTileGridSize,
Height = halfTileGridSize,
}, 0x00, 0x00, 0x80);
}
else
{
byte blue = (byte)(((i / reductionRatio + j / reductionRatio) % 2) == 0 ? 0x80 : 0x40);
this.DrawRectOffscreen(new Rectangle
{
X = x,
Y = y,
Width = tileGridSize,
Height = tileGridSize,
}, 0x00, 0x00, blue);
}
}
}
}
if (layerMode == LayerMode.Event)
{
int yMin = tileStartJ * tileGridSize + offset.Y;
int yMax = tileEndJ * tileGridSize + offset.Y;
for (int i = tileStartI; i < tileEndI; i++)
{
int x1 = i * tileGridSize + offset.X;
int x2 = i * tileGridSize + offset.X + tileGridSize - 1;
this.DrawGrayLineOnOffscreen(x1, x1, yMin, yMax);
this.DrawGrayLineOnOffscreen(x2, x2, yMin, yMax);
}
int xMin = tileStartI * tileGridSize + offset.X;
int xMax = tileEndI * tileGridSize + offset.X;
for (int j = tileStartJ; j < tileEndJ; j++)
{
int y1 = j * tileGridSize + offset.Y;
int y2 = j * tileGridSize + offset.Y + tileGridSize - 1;
this.DrawGrayLineOnOffscreen(xMin, xMax, y1, y1);
this.DrawGrayLineOnOffscreen(xMin, xMax, y2, y2);
}
}
if (editorState.LayerMode == LayerMode.Layer2 && layer == 0)
{
this.DarkenOffscreen(new Rectangle
{
X = tileStartI * tileGridSize + offset.X,
Y = tileStartJ * tileGridSize + offset.Y,
Width = (tileEndI - tileStartI) * tileGridSize,
Height = (tileEndJ - tileStartJ) * tileGridSize,
});
}
}
}
finally
{
if (bdHash != null)
{
foreach (var pair in bdHash)
{
pair.Key.UnlockBits(pair.Value);
}
bdHash.Clear();
bdHash = null;
}
}
}
}
public void Update(EditorState editorState, TileSetCollection tileSetCollection, Map map, int gridSize)
{
Rectangle rect = new Rectangle(new Point(0, 0), this.Size);
this.Update(editorState, tileSetCollection, map, gridSize, rect);
}