/// <summary>
/// Reserves a rectangular area for the given image in this.Maze.
/// The chosen location is remembered in this.imageLocations.
/// Returns true if the reservation was successful.
/// </summary>
/// <param name="contourImage"></param>
/// <returns></returns>
private bool AddImage(ContourImage contourImage)
{
Image img = contourImage.DisplayedImage;
int padding = MazePainter.ApplyScaleFactor(8) + this.wallWidth;
int sqW = (img.Width + padding) / this.gridWidth + 1;
int sqH = (img.Height + padding) / this.gridWidth + 1;
int xOffsetImg = (sqW * gridWidth - img.Width) / 2;
int yOffsetImg = (sqH * gridWidth - img.Height) / 2;
OutlineShape shape = (ContourImage.DisplayProcessedImage ? contourImage.GetCoveredShape(gridWidth, wallWidth, xOffsetImg, yOffsetImg) : null);
Rectangle rect;
if (Maze.ReserveRectangle(sqW, sqH, 2, shape, out rect))
{
// Remember the image data and location. It will be painted in PaintMaze().
int x = rect.X * gridWidth + xOffset + xOffsetImg;
int y = rect.Y * gridWidth + yOffset + yOffsetImg;
imageLocations.Add(new Rectangle(x, y, img.Width, img.Height));
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Reserves a region of the maze covered by the coveringControl.
/// This MazeUserControl and the coveringControl must have the same Parent, i.e. a common coordinate system.
/// </summary>
/// <param name="coveringControl"></param>
/// <exception cref="ArgumentException">The given Control has a differnent Parent.</exception>
public bool ReserveArea(Control coveringControl)
{
if (coveringControl.Parent != this.Parent)
{
throw new ArgumentException("Must have the same Parent.", nameof(coveringControl));
}
// Dimensions of the control in square coordinates.
int x, y, w, h;
x = XCoordinate(coveringControl.Left, true);
y = YCoordinate(coveringControl.Top, true);
w = 1 + XCoordinate(coveringControl.Right - 1, false) - x;
h = 1 + YCoordinate(coveringControl.Bottom - 1, false) - y;
int padding = wallWidth + MazePainter.ApplyScaleFactor(6);
if (0 < x && x + w < Maze.XSize)
{
w = 1 + (coveringControl.Width + padding) / gridWidth;
}
if (0 < y && y + h < Maze.YSize)
{
h = 1 + (coveringControl.Height + padding) / gridWidth;
}
bool result = Maze.ReserveRectangle(x, y, w, h, null);
// Move the control into the center of the reserved area.
if (result)
{
int cx = coveringControl.Left;
int cy = coveringControl.Top;
if (0 < x && x + w < Maze.XSize)
{
cx = this.Location.X + xOffset + x * gridWidth;
cx += 1 + (w * gridWidth - wallWidth - coveringControl.Width) / 2;
}
if (0 < y && y + h < Maze.YSize)
{
cy = this.Location.Y + yOffset + y * gridWidth;
cy += 1 + (h * gridWidth - wallWidth - coveringControl.Height) / 2;
}
// Adjust the control's location
coveringControl.Location = new Point(cx, cy);
controlLocations.Add(coveringControl.Bounds);
}
return(result);
}