private void chkFillBackGround_Checked(object sender, RoutedEventArgs e)
{
CheckFilled();
ExpFilledCustom.IsEnabled = true;
int x = DrawArea.TheLayers.ActiveLayerIndex;
int n = DrawArea.TheLayers[x].Graphics.SelectionCount;
if (n > 0)
{
n = DrawArea.TheLayers[x].Graphics.Count;
for (int i = 0; i < n; i++)
{
if (DrawArea.TheLayers[x].Graphics[i].Selected == true)
{
DrawObject obj = DrawArea.TheLayers[x].Graphics[i];
if (DrawArea.DrawFilled == true)
{
obj.Gradient = false;
obj.Filled = true;
obj.Hatch = false;
obj.Texture = false;
obj.FillColor = DrawArea.FillColor;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
else if (DrawArea.DrawGradient == true)
{
obj.Gradient = true;
obj.Filled = false;
obj.Hatch = false;
obj.Texture = false;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
else if (DrawArea.DrawHatch == true)
{
obj.Gradient = false;
obj.Filled = false;
obj.Hatch = true;
obj.Texture = false;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
else if (DrawArea.DrawTexture == true)
{
obj.Gradient = false;
obj.Filled = false;
obj.Hatch = false;
obj.Texture = true;
obj.FillImage = DrawArea.FillImage;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
}
}
DrawArea.Refresh();
}
}
// Đổ dữ liệu trong field từ đối tượng này đến đối tượng Clone
protected void FillDrawObjectFields(DrawObject drawObject)
{
drawObject.selected = selected;
drawObject.color = color;
drawObject.penWidth = penWidth;
drawObject.ID = ID;
drawObject._penType = _penType;
drawObject._shapeName = _shapeName;
drawObject.drawpen = drawpen;
drawObject.filled = filled;
drawObject.gradient = gradient;
drawObject.hatch = hatch;
drawObject.texture = texture;
drawObject.fillImage = fillImage;
drawObject.fillColor = fillColor;
drawObject._rotation = _rotation;
drawObject._center = _center;
}
private void btnFilledTexture_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog op = new OpenFileDialog();
op.Title = "Select a picture";
op.Filter = "All supported graphics|*.jpg;*.jpeg;*.png|" +
"JPEG (*.jpg;*.jpeg)|*.jpg;*.jpeg|" +
"Portable Network Graphic (*.png)|*.png";
DrawArea.DrawTexture = true;
btnFilledTexture.Content = "C";
DrawArea.DrawHatch = false;
btnFilledHatch.Content = "";
DrawArea.DrawFilled = false;
btnFilledSolid.Content = "";
DrawArea.DrawGradient = false;
btnFilledGradient.Content = "";
if (op.ShowDialog() == true)
{
DrawArea.FillImage = new Bitmap(op.FileName);
}
int x = DrawArea.TheLayers.ActiveLayerIndex;
int n = DrawArea.TheLayers[x].Graphics.SelectionCount;
if (n > 0)
{
n = DrawArea.TheLayers[x].Graphics.Count;
for (int i = 0; i < n; i++)
{
if (DrawArea.TheLayers[x].Graphics[i].Selected == true)
{
DrawObject obj = DrawArea.TheLayers[x].Graphics[i];
obj.Gradient = false;
obj.Filled = false;
obj.Hatch = false;
obj.Texture = true;
obj.FillImage = DrawArea.FillImage;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
}
DrawArea.Refresh();
}
}
// Hàm này được gọi khi user click trái vào draw area và một tool được active
public void AddNewObject(DrawArea drawArea, DrawObject o)
{
int al = drawArea.TheLayers.ActiveLayerIndex;
drawArea.TheLayers[al].Graphics.UnselectAll();
o.Selected = true;
o.Dirty = true;
int objectID = 0;
// Lấy id của đối tượng
for (int i = 0; i < drawArea.TheLayers.Count; i++)
{
objectID = +drawArea.TheLayers[i].Graphics.Count;
}
objectID++;
o.ID = objectID;
drawArea.TheLayers[al].Graphics.Add(o);
drawArea.Capture = true;
drawArea.Refresh();
}
// Replace phục vụ cho Undo và Redo
private void ReplaceObjects(GraphicsList graphicsList, List <DrawObject> list)
{
for (int i = 0; i < graphicsList.Count; i++)
{
DrawObject replacement = null;
foreach (DrawObject o in list)
{
if (o.ID ==
graphicsList[i].ID)
{
replacement = o;
break;
}
}
if (replacement != null)
{
graphicsList.Replace(i, replacement);
}
}
}
/* So sánh với ZOrder để xem đối tượng nào nổi lên
* Trả về -1: Nằm dưới
* Trả về 0: Nằm ngang nhau
* Trả về 1: Nằm trên
*/
public int CompareTo(object obj)
{
DrawObject d = obj as DrawObject;
int x = 0;
if (d != null)
{
if (d.ZOrder == ZOrder)
{
x = 0;
}
else if (d.ZOrder > ZOrder)
{
x = -1;
}
else
{
x = 1;
}
}
return(x);
}
private void cbxDashArrow_Checked(object sender, RoutedEventArgs e)
{
DrawArea.PenType = TypeOfPen.PenType.DashArrow;
DrawArea.CurrentPen = TypeOfPen.SetCurrentPen(TypeOfPen.PenType.DashArrow, DrawArea.LineColor, DrawArea.LineWidth);
int x = DrawArea.TheLayers.ActiveLayerIndex;
int n = DrawArea.TheLayers[x].Graphics.SelectionCount;
if (n > 0)
{
n = DrawArea.TheLayers[x].Graphics.Count;
for (int i = 0; i < n; i++)
{
if (DrawArea.TheLayers[x].Graphics[i].Selected == true)
{
DrawObject obj = DrawArea.TheLayers[x].Graphics[i];
obj.PenType = TypeOfPen.PenType.DashArrow;
obj.DrawPen = DrawArea.CurrentPen;
DrawArea.TheLayers[x].Graphics.Replace(i, obj);
}
}
DrawArea.Refresh();
}
}
public void Append(DrawObject obj)
{
graphicsList.Add(obj);
}
/* --- Phương thức --- */
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
commandChangeState = null;
wasMove = false;
selectMode = SelectionMode.None;
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
// Kiểm tra có phải là đang resize
int al = drawArea.TheLayers.ActiveLayerIndex;
int n = drawArea.TheLayers[al].Graphics.SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = drawArea.TheLayers[al].Graphics.GetSelectedObject(i);
int handleNumber = o.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
// Giữ đối tượng cần resize
resizedObject = o;
resizedObjectHandle = handleNumber;
// Khi resize một đối tượng phải unselect các đối tượng khác
drawArea.TheLayers[al].Graphics.UnselectAll();
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
break;
}
}
// Kiểm tra có phải là đang move
if (selectMode == SelectionMode.None)
{
int n1 = drawArea.TheLayers[al].Graphics.Count;
DrawObject o = null;
for (int i = 0; i < n1; i++)
{
if (drawArea.TheLayers[al].Graphics[i].HitTest(point) == 0)
{
o = drawArea.TheLayers[al].Graphics[i];
break;
}
}
if (o != null)
{
selectMode = SelectionMode.Move;
// Unselect tất cả nếu Ctrl chưa nhấn và một đối tượng chưa được chọn
if ((Control.ModifierKeys & Keys.Control) == 0 &&
!o.Selected)
{
drawArea.TheLayers[al].Graphics.UnselectAll();
}
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
drawArea.Cursor = Cursors.SizeAll;
}
}
// Kiểm tra có phải là đang group selection
if (selectMode == SelectionMode.None)
{
if ((Control.ModifierKeys & Keys.Control) == 0)
{
drawArea.TheLayers[al].Graphics.UnselectAll();
}
selectMode = SelectionMode.NetSelection;
drawArea.DrawNetRectangle = true;
}
lastPoint.X = point.X;
lastPoint.Y = point.Y;
startPoint.X = point.X;
startPoint.Y = point.Y;
drawArea.Capture = true;
drawArea.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
}