// thêm đối tượng vào canvas
public static void AddObjectToCanvas(
Canvas cvMap,
Image image,
int X, int Y,
MouseButtonEventHandler mouseDown, MouseButtonEventHandler mouseUp,
bool canOverlap)
{
if (image != null)
{
#region Kiểm tra đảm bảo chỉ có duy nhất một nhân vật Mario trong map
if ((EObjectName)(int)image.Tag == EObjectName.MARIO)
{
if (HasMarioAdded(cvMap))
{
MessageBox.Show("Mario Object has already been added into map!");
return;
}
}
else if ((EObjectName)(int)image.Tag == EObjectName.CREEP_UP_PIPE_1)
{
if (HasCreepUp(cvMap, 0))
{
MessageBox.Show("Creep Up Pipe 1 Object has already been added into map!");
return;
}
}
else if ((EObjectName)(int)image.Tag == EObjectName.CREEP_UP_PIPE_2)
{
if (HasCreepUp(cvMap, 1))
{
MessageBox.Show("Creep Up Pipe 2 Object has already been added into map!");
return;
}
}
#endregion
#region Thêm image vào canvas
Image i = new Image();
int w, h;
Factory.ConvertToStandardImage(image, out w, out h);
i.Width = w;
i.Height = h;
i.Source = image.Source;
i.Tag = image.Tag;
i.MouseLeftButtonDown += mouseDown;
i.MouseLeftButtonUp += mouseUp;
if (!canOverlap)
{
if (cvMap.Children.Count > 0)
{
foreach (var item in cvMap.Children)
{
// nếu đã tồn tại đối tượng tại vị trí (X, Y) thì k add vào canvas, return khỏi hàm
if (item is Image && ((Image)item).Opacity != 0.5f)
{
if ((int)Canvas.GetLeft((Image)item) == X && (int)Canvas.GetTop((Image)item) == Y)
{
MessageBox.Show("This coordinate has a object!");
return;
}
}
}
}
}
Image rel_X, rel_Y;
Alignment.Direction dir;
Point p = Alignment.GetAutoAlignOffset(cvMap, X, Y, w, h, 3, 3, out rel_X, out rel_Y, out dir);
if (p != (new Point(0, 0)))
{
X += (int)p.X;
Y += (int)p.Y;
}
Canvas.SetLeft(i, X);
Canvas.SetTop(i, Y);
if (Factory.CheckObjectCollisionAbility((EObjectName)i.Tag) == false)
{
if ((EObjectName)i.Tag == EObjectName.FLAG_POSITION)
{
cvMap.Children.Add(i);
}
else
{
cvMap.Children.Insert(0, i);
}
}
else
{
if ((EObjectName)i.Tag == EObjectName.TOWER)
{
cvMap.Children.Insert(0, i);
}
else
{
cvMap.Children.Add(i);
}
}
#endregion
}
}
private void cvMap_MouseMove(object sender, MouseEventArgs e)
{
int X, Y; // tọa độ của chuột
if (isAutoAlign) // tự đọng căn, vẽ tọa độ tương đối
{
X = (int)(e.GetPosition(this.cvMap).X / MainWindow.OBJECT_WIDTH) * MainWindow.OBJECT_WIDTH;
Y = (int)(e.GetPosition(this.cvMap).Y / MainWindow.OBJECT_HEIGHT) * MainWindow.OBJECT_HEIGHT;
}
else // vẽ bằng tay, tọa độ tuyệt đối
{
X = (int)e.GetPosition(this.cvMap).X;
Y = (int)e.GetPosition(this.cvMap).Y;
}
if (selectedImage == null)
{
this.tbX.Text = X.ToString();
this.tbY.Text = (this._origin - Y).ToString();
}
else
{
this.tbX.Text = ((int)Canvas.GetLeft(selectedImage)).ToString();
this.tbY.Text = ((int)(this._origin - Canvas.GetTop(selectedImage))).ToString();
}
// remove line căn nếu đã add
if (this.cvMap.Children.Count > 0)
{
List <UIElement> lines = new List <UIElement>();
foreach (UIElement item in this.cvMap.Children)
{
if (item is Line)
{
Line l = item as Line;
if (l.Tag != null && l.Tag.ToString() == "Align")
{
lines.Add(item);
}
}
}
if (lines.Count > 0)
{
foreach (var item in lines)
{
this.cvMap.Children.Remove(item);
}
}
}
// tạo hình giả theo chuột
if (this._image != null)
{
if (lastImage != null && lastImage.Opacity == 0.5f)
{
this.cvMap.Children.Remove(lastImage);
}
curImage = new Image();
int w, h;
Factory.ConvertToStandardImage(this._image, out w, out h);
curImage.Width = w;
curImage.Height = h;
curImage.Source = this._image.Source;
curImage.Opacity = 0.5f; // dùng để nhận biết và phân biệt với image đc vẽ trong canvas
Image rel_X, rel_Y;
Alignment.Direction dir;
Point p = Alignment.GetAutoAlignOffset(this.cvMap, X, Y, w, h, 3, 3, out rel_X, out rel_Y, out dir);
if (p != (new Point(0, 0)))
{
X += (int)p.X;
Y += (int)p.Y;
Alignment.AddAlignLine(this.cvMap, X, Y, w, h, rel_X, rel_Y, dir);
}
Canvas.SetLeft(curImage, X);
Canvas.SetTop(curImage, Y);
this.cvMap.Children.Add(curImage);
lastImage = curImage;
curImage = null;
curMouseState = e.LeftButton;
if (curMouseState == MouseButtonState.Pressed && preMouseState == MouseButtonState.Released) // nhấn chuột trái
{
Management.AddObjectToCanvas(this.cvMap, this._image, X, Y, i_MouseLeftButtonDown, i_MouseLeftButtonUp, canOverlap);
_isUnsaved = true;
_begin_X = X;
_begin_Y = Y;
}
else if (curMouseState == MouseButtonState.Pressed && e.RightButton == MouseButtonState.Pressed)
{
if (e.GetPosition(this.cvMap).X > _begin_X)
{
int iWidth, iHeight;
Factory.ConvertToStandardImage(this._image, out iWidth, out iHeight);
while (_begin_X + iWidth < e.GetPosition(this.cvMap).X)
{
_begin_X += iWidth;
if (Management.HasAlreadyOverLap(this.cvMap, _begin_X, _begin_Y) == false)
{
Management.AddObjectToCanvas(this.cvMap, this._image, _begin_X, _begin_Y, i_MouseLeftButtonDown, i_MouseLeftButtonUp, canOverlap);
}
}
}
else if (e.GetPosition(this.cvMap).X < _begin_X)
{
int iWidth, iHeight;
Factory.ConvertToStandardImage(this._image, out iWidth, out iHeight);
while (_begin_X - iWidth > e.GetPosition(this.cvMap).X)
{
_begin_X -= iWidth;
if (Management.HasAlreadyOverLap(this.cvMap, _begin_X, _begin_Y) == false)
{
Management.AddObjectToCanvas(this.cvMap, this._image, _begin_X, _begin_Y, i_MouseLeftButtonDown, i_MouseLeftButtonUp, canOverlap);
}
}
}
}
preMouseState = curMouseState;
}
else if (this.selectedImage != null)
{
if (e.LeftButton == MouseButtonState.Pressed)
{
isDragDrop = true;
selected_Offset_X = (int)e.GetPosition(this.cvMap).X - (selected_X + delta_X);
selected_Offset_Y = (selected_Y + delta_Y) - (int)e.GetPosition(this.cvMap).Y;
Image rel_X, rel_Y;
Alignment.Direction dir;
Point p = Alignment.GetAutoAlignOffset(
this.cvMap,
(int)e.GetPosition(this.cvMap).X - delta_X,
(int)e.GetPosition(this.cvMap).Y - delta_Y,
(int)selectedImage.Width, (int)selectedImage.Height, 3, 3, out rel_X, out rel_Y, out dir);
if (p != (new Point(0, 0)))
{
selected_Offset_X += (int)p.X;
selected_Offset_Y -= (int)p.Y;
Alignment.AddAlignLine(this.cvMap, selected_X + selected_Offset_X, selected_Y - selected_Offset_Y, (int)selectedImage.Width, (int)selectedImage.Height, rel_X, rel_Y, dir);
}
this.tbOffsetX.Text = selected_Offset_X.ToString();
this.tbOffsetY.Text = selected_Offset_Y.ToString();
}
else
{
this.i_MouseLeftButtonUp(null, null);
}
}
}