public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e)
{
int al = drawArea.TheLayers.ActiveLayerIndex;
if (selectMode == SelectionMode.NetSelection)
{
// Group selection
drawArea.TheLayers[al].Graphics.SelectInRectangle(drawArea.NetRectangle);
selectMode = SelectionMode.None;
drawArea.DrawNetRectangle = false;
}
if (resizedObject != null)
{
// Sau khi resize
resizedObject.Normalize();
resizedObject = null;
}
drawArea.Capture = false;
drawArea.Refresh();
if (commandChangeState != null && wasMove)
{
commandChangeState.NewState(drawArea.TheLayers);
drawArea.AddCommandToHistory(commandChangeState);
commandChangeState = null;
}
lastPoint = drawArea.BackTrackMouse(e.Location);
}
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
drawArea.Cursor = Cursor;
if (e.Button !=
MouseButtons.Left)
{
return;
}
if (newPolygon == null)
{
return;
}
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
int distance = (e.X - lastX) * (e.X - lastX) + (e.Y - lastY) * (e.Y - lastY);
if (distance < minDistance)
{
newPolygon.MoveHandleTo(point, newPolygon.HandleCount);
}
else
{
newPolygon.AddPoint(point);
lastX = e.X;
lastY = e.Y;
}
drawArea.Refresh();
}
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
Point p = drawArea.BackTrackMouse(new Point(e.X, e.Y));
newPolygon = new DrawPencil(p.X, p.Y, p.X + 1, p.Y + 1, drawArea.LineColor, drawArea.LineWidth, drawArea.PenType);
minDistance = Convert.ToInt32((15 * drawArea.Zoom) * (15 * drawArea.Zoom));
AddNewObject(drawArea, newPolygon);
lastX = e.X;
lastY = e.Y;
}
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
drawArea.Cursor = Cursor;
int al = drawArea.TheLayers.ActiveLayerIndex;
if (e.Button == MouseButtons.Left && drawArea.TheLayers[al].Graphics.Count > 0)
{
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
drawArea.TheLayers[al].Graphics[0].MoveHandleTo(point, 5);
drawArea.Refresh();
}
}
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
Point p = drawArea.BackTrackMouse(new Point(e.X, e.Y));
frmTextForm td = new frmTextForm();
if (td.ShowDialog() == DialogResult.OK)
{
string t = td.TheText;
Color c = td.TheColor;
Color b = td.TheBackGround;
Font f = td.TheFont;
AddNewObject(drawArea, new DrawText(p.X, p.Y, t, f, c, b));
drawArea.ActiveTool = DrawArea.DrawToolType.Pointer;
}
else
{
drawArea.ActiveTool = DrawArea.DrawToolType.Pointer;
}
}
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
Point p = drawArea.BackTrackMouse(new Point(e.X, e.Y));
AddNewObject(drawArea, new DrawRectangle(p.X, p.Y, 1, 1, drawArea.LineColor, drawArea.LineWidth, drawArea.PenType, drawArea.FillColor, drawArea.FillImage, drawArea.DrawFilled, drawArea.DrawGradient, drawArea.DrawHatch, drawArea.DrawTexture));
}
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
Point p = drawArea.BackTrackMouse(new Point(e.X, e.Y));
AddNewObject(drawArea, new DrawLine(p.X, p.Y, p.X + 1, p.Y + 1, drawArea.LineColor, drawArea.LineWidth, drawArea.PenType));
}
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
Point p = drawArea.BackTrackMouse(new Point(e.X, e.Y));
AddNewObject(drawArea, new DrawImage(p.X, p.Y));
}
/* --- 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;
}
}
