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();
}
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();
}
}
private void btnPaste_Click(object sender, RoutedEventArgs e)
{
int x = DrawArea.TheLayers.ActiveLayerIndex;
int n = DrawArea.ObjCopyList.Count;
DrawArea.TheLayers[x].Graphics.UnselectAll();
for (int i = 0; i < n; i++)
{
DrawArea.TheLayers[x].Graphics.Add(DrawArea.ObjCopyList[i]);
DrawArea.TheLayers[x].Graphics[i].Move(30 + i, 30 + i);
}
DrawArea.Capture = true;
DrawArea.Refresh();
if (btnPaste.IsEnabled == false)
{
btnPaste.IsEnabled = true;
}
if (btnCopy.IsEnabled == false)
{
btnCopy.IsEnabled = true;
}
DrawArea.ActiveTool = DrawArea.DrawToolType.Pointer;
btnPaste.IsEnabled = false;
}
/* --- 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();
}
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
int al = drawArea.TheLayers.ActiveLayerIndex;
wasMove = true;
// Set con trỏ khi chưa nhấn chuột
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
if (drawArea.TheLayers[al].Graphics != null)
{
for (int i = 0; i < drawArea.TheLayers[al].Graphics.Count; i++)
{
int n = drawArea.TheLayers[al].Graphics[i].HitTest(point);
if (n > 0)
{
cursor = drawArea.TheLayers[al].Graphics[i].GetHandleCursor(n);
break;
}
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// Khi nhấn trái chuột
// Tìm khoảng cách giữa hai điểm trước và sau
int dx = point.X - lastPoint.X;
int dy = point.Y - lastPoint.Y;
lastPoint.X = point.X;
lastPoint.Y = point.Y;
// Resize
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
drawArea.Refresh();
}
}
// Move
if (selectMode == SelectionMode.Move)
{
int n = drawArea.TheLayers[al].Graphics.SelectionCount;
for (int i = 0; i < n; i++)
{
drawArea.TheLayers[al].Graphics.GetSelectedObject(i).Move(dx, dy);
}
drawArea.Cursor = Cursors.SizeAll;
drawArea.Refresh();
}
// Group selection
if (selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Refresh();
return;
}
}
