public DrawObject BuildCtrWay()
{
DrawObject ctrWay = this.Clone();
ctrWay.Shape.Reverse();
ctrWay.Shape.Offset(1); //右手坐标系，右手坐标系跟驾驶习惯有关系
ctrWay.BulidWay(this.WaySetter);
ctrWay.Shape.Offset(penWidth - 1); //右手坐标系，右手坐标系跟驾驶习惯有关系
Way.WaysBind(this.Way, ctrWay.Way);
return(ctrWay);
}
/// <summary>
/// Add new object to draw area.
/// Function is called when user left-clicks draw area,
/// and one of ToolObject-derived tools is active.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="o"></param>
protected void AddNewObject(DrawArea drawArea, DrawObject o)
{
drawArea.Graphics.UnselectAll();
o.Selected = true;
drawArea.Graphics.Add(o);
drawArea.Capture = true;
drawArea.Refresh();
drawArea.SetDirty();
}
// Replace objects in graphicsList with objects from list
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);
}
}
}
/// <summary>
/// Right-click handler
/// </summary>
/// <param name="e"></param>
private void OnContextMenu(MouseEventArgs e)
{
// Change current selection if necessary
Point point = new Point(e.X, e.Y);
int n = Graphics.Count;
DrawObject o = null;
for (int i = 0; i < n; i++)
{
if (Graphics[i].HitTest(point) == 0)
{
o = Graphics[i];
break;
}
}
if (o != null)
{
if (!o.Selected)
{
Graphics.UnselectAll();
}
// Select clicked object
o.Selected = true;
}
else
{
Graphics.UnselectAll();
}
Refresh(); // in the case selection was changed
// Show context menu.
// Context menu items are filled from owner form Edit menu items.
//m_ContextMenu = new ContextMenuStrip();
//int nItems = owner.ContextParent.DropDownItems.Count;
//// Read Edit items and move them to context menu.
//// Since every move reduces number of items, read them in reverse order.
//// To get items in direct order, insert each of them to beginning.
//for (int i = nItems - 1; i >= 0; i--)
//{
// m_ContextMenu.Items.Insert(0, owner.ContextParent.DropDownItems[i]);
//}
// Show context menu for owner form, so that it handles items selection.
// Convert point from this window coordinates to owner's coordinates.
point.X += this.Left;
point.Y += this.Top;
m_ContextMenu.Show(owner, point);
Owner.SetStateOfControls(); // enable/disable menu items
// Context menu is shown, but owner's Edit menu is now empty.
// Subscribe to context menu Closed event and restore items there.
//m_ContextMenu.Closed += delegate(object sender, ToolStripDropDownClosedEventArgs args)
//{
// if (m_ContextMenu != null) // precaution
// {
// nItems = m_ContextMenu.Items.Count;
// for (int k = nItems - 1; k >= 0; k--)
// {
// owner.ContextParent.DropDownItems.Insert(0, m_ContextMenu.Items[k]);
// }
// }
//};
}
/// <summary>
/// Left mouse button is pressed
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseDown(DrawArea drawArea, MouseEventArgs e)
{
commandChangeState = null;
wasMove = false;
selectMode = SelectionMode.None;
Point point = new Point(e.X, e.Y);
// Test for resizing (only if control is selected, cursor is on the handle)
foreach (DrawObject o in drawArea.Graphics.Selection)
{
int handleNumber = o.HitTest(point);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
// keep resized object in class member
resizedObject = o;
resizedObjectHandle = handleNumber;
// Since we want to resize only one object, unselect all other objects
drawArea.Graphics.UnselectAll();
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.Graphics);
break;
}
}
// Test for move (cursor is on the object)
if (selectMode == SelectionMode.None)
{
int n1 = drawArea.Graphics.Count;
DrawObject o = null;
for (int i = 0; i < n1; i++)
{
if (drawArea.Graphics[i].HitTest(point) == 0)
{
o = drawArea.Graphics[i];
break;
}
}
if (o != null)
{
selectMode = SelectionMode.Move;
// Unselect all if Ctrl is not pressed and clicked object is not selected yet
if ((Control.ModifierKeys & Keys.Control) == 0 && !o.Selected)
{
drawArea.Graphics.UnselectAll();
}
// Select clicked object
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.Graphics);
drawArea.Cursor = Cursors.SizeAll;
}
}
// Net selection
if (selectMode == SelectionMode.None)
{
// click on background
if ((Control.ModifierKeys & Keys.Control) == 0)
{
drawArea.Graphics.UnselectAll();
}
selectMode = SelectionMode.NetSelection;
}
lastPoint.X = e.X;
lastPoint.Y = e.Y;
startPoint.X = e.X;
startPoint.Y = e.Y;
drawArea.Capture = true;
drawArea.Refresh();
if (selectMode == SelectionMode.NetSelection)
{
// Draw selection rectangle in initial position
ControlPaint.DrawReversibleFrame(
drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint)),
Color.Black,
FrameStyle.Dashed);
}
}
public void AddFirst(DrawObject obj)
{
// insert to the top of z-order
graphics.Insert(0, obj);
//this.Dirty = true;
}
public void Add(DrawObject obj)
{
// insert to the top of z-order
graphics.Insert(0, obj);
}
// Create this command with DrawObject instance added to the list
public CommandAdd(DrawObject drawObject) : base()
{
// Keep copy of added object
this.drawObject = drawObject.Clone();
}
