/// <summary>
/// Adds a layout element to the layout
/// </summary>
public void AddToLayout(LayoutElement le)
{
string leName = le.Name + " 1";
int i = 2;
while (_layoutElements.FindAll(delegate(LayoutElement o) { return (o.Name == leName); }).Count > 0)
{
leName = le.Name + " " + i;
i++;
}
le.Name = leName;
_layoutElements.Insert(0, le);
OnElementsChanged(null);
le.Invalidated += LeInvalidated;
Invalidate(new Region(PaperToScreen(le.Rectangle)));
}
/// <summary>
/// Removes the specified layoutElement from the selection
/// </summary>
internal void RemoveFromSelection(LayoutElement le)
{
_selectedLayoutElements.Remove(le);
Invalidate(new Region(PaperToScreen(le.Rectangle)));
OnSelectionChanged(null);
}
void LayoutControl_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
//Handles various different mouse modes
switch (_mouseMode)
{
//If we are dealing with a selection we look here
case MouseMode.CreateSelection:
PointF selectBoxTL = ScreenToPaper(_mouseBox.Location);
PointF selectBoxBR = ScreenToPaper(_mouseBox.Location.X + _mouseBox.Width, _mouseBox.Location.Y + _mouseBox.Height);
RectangleF selectBoxPaper = new RectangleF(selectBoxTL.X, selectBoxTL.Y, selectBoxBR.X - selectBoxTL.X, selectBoxBR.Y - selectBoxTL.Y);
if (ModifierKeys == Keys.Control)
{
foreach (LayoutElement le in _layoutElements)
{
if (le.IntersectsWith(selectBoxPaper))
{
if (_selectedLayoutElements.Contains(le))
_selectedLayoutElements.Remove(le);
else
_selectedLayoutElements.Add(le);
//If the box is just a point only select the top most
if (_mouseBox.Width <= 1 && _mouseBox.Height <= 1)
break;
}
}
}
else
{
_selectedLayoutElements.Clear();
foreach (LayoutElement le in _layoutElements)
{
if (le.IntersectsWith(selectBoxPaper))
{
_selectedLayoutElements.Add(le);
//If the box is just a point only select the top most
if (_mouseBox.Width <= 1 && _mouseBox.Height <= 1)
break;
}
}
}
OnSelectionChanged(null);
_mouseMode = MouseMode.Default;
Invalidate();
break;
//Stops moving the selection
case MouseMode.MoveSelection:
_mouseMode = MouseMode.Default;
Cursor = Cursors.Default;
break;
//Turns of resize
case MouseMode.ResizeSelected:
if (_resizeTempBitmap != null)
_resizeTempBitmap.Dispose();
_resizeTempBitmap = null;
_mouseMode = MouseMode.Default;
Cursor = Cursors.Default;
Invalidate(new Region(PaperToScreen(_selectedLayoutElements[0].Rectangle)));
_selectedLayoutElements[0].Resizing = false;
_selectedLayoutElements[0].Size = _selectedLayoutElements[0].Size;
break;
case MouseMode.InsertNewElement:
if (_mouseBox.Width == 0)
_mouseBox.Width = 200;
if (_mouseBox.Height == 0)
_mouseBox.Height = 100;
if (_mouseBox.Width < 0)
{
_mouseBox.X = _mouseBox.X + _mouseBox.Width;
_mouseBox.Width = -_mouseBox.Width;
}
if (_mouseBox.Height < 0)
{
_mouseBox.Y = _mouseBox.Y + _mouseBox.Height;
_mouseBox.Height = -_mouseBox.Height;
}
_elementToAddWithMouse.Rectangle = ScreenToPaper(_mouseBox);
AddToLayout(_elementToAddWithMouse);
AddToSelection(_elementToAddWithMouse);
_elementToAddWithMouse = null;
_mouseMode = MouseMode.Default;
_mouseBox.Inflate(5, 5);
Invalidate(new Region(_mouseBox));
break;
case MouseMode.PanMap:
if (_mouseBox.Width != 0 || _mouseBox.Height != 0)
PanMap(_selectedLayoutElements[0] as LayoutMap, _mouseBox.Width, _mouseBox.Height);
_mouseMode = MouseMode.StartPanMap;
break;
case MouseMode.Default:
break;
}
}
else if (e.Button == MouseButtons.Right)
{
switch (_mouseMode)
{
case MouseMode.Default:
if (_selectedLayoutElements.Count < 1)
{
for (int i = 0; i < _contextMenuRight.MenuItems.Count; i++)
_contextMenuRight.MenuItems[i].Enabled = false;
}
else if (_selectedLayoutElements.Count == 1)
{
_cMnuSelAli.Enabled = false;
_cMnuSelFit.Enabled = false;
}
_contextMenuRight.Show(this, e.Location);
for (int i = 0; i < _contextMenuRight.MenuItems.Count; i++)
_contextMenuRight.MenuItems[i].Enabled = true;
break;
}
}
}
void LayoutControl_MouseDown(object sender, MouseEventArgs e)
{
//When the user clicks down we start tracking the mouses location
_mouseStartPoint = new PointF(e.X, e.Y);
_lastMousePoint = new PointF(e.X, e.Y);
PointF mousePointPaper = ScreenToPaper(_mouseStartPoint);
//Deals with left buttons clicks
if (e.Button == MouseButtons.Left)
{
switch (_mouseMode)
{
case MouseMode.Default:
//Handles resizing stuff
if (_resizeSelectedEdge != Edge.None)
{
_mouseMode = MouseMode.ResizeSelected;
_selectedLayoutElements[0].Resizing = true;
if (_selectedLayoutElements[0].ResizeStyle != ResizeStyle.HandledInternally)
{
RectangleF selecteScreenRect = PaperToScreen(_selectedLayoutElements[0].Rectangle);
_resizeTempBitmap = new Bitmap(Convert.ToInt32(selecteScreenRect.Width), Convert.ToInt32(selecteScreenRect.Height),System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics graph = Graphics.FromImage(_resizeTempBitmap);
graph.SmoothingMode = _drawingQuality;
graph.ScaleTransform(96F / 100F * _zoom, 96F / 100F * _zoom);
graph.TranslateTransform(-_selectedLayoutElements[0].Rectangle.X, -_selectedLayoutElements[0].Rectangle.Y);
_selectedLayoutElements[0].Draw(graph, false);
graph.Dispose();
}
return;
}
//Starts moving selected elements
if (ModifierKeys != Keys.Control)
{
foreach (LayoutElement le in _selectedLayoutElements)
{
if (le.IntersectsWith(mousePointPaper))
{
_mouseMode = MouseMode.MoveSelection;
Cursor = Cursors.SizeAll;
return;
}
}
}
//Starts the selection code.
_mouseMode = MouseMode.CreateSelection;
_mouseBox = new RectangleF(e.X, e.Y, 0F, 0F);
break;
//Start drag rectangle insert new element
case MouseMode.StartInsertNewElement:
_mouseMode = MouseMode.InsertNewElement;
_mouseBox = new RectangleF(e.X, e.Y, 0F, 0F);
break;
//Starts the pan mode for the map
case MouseMode.StartPanMap:
_mouseMode = MouseMode.PanMap;
_mouseBox = new RectangleF(e.X, e.Y, 0F, 0F);
break;
}
}
//Deals with right button clicks
if (e.Button == MouseButtons.Right)
{
switch (_mouseMode)
{
//If the user was in insert mode we cancel it
case(MouseMode.StartInsertNewElement):
_mouseMode = MouseMode.Default;
_elementToAddWithMouse = null;
Cursor = Cursors.Default;
break;
}
}
}
/// <summary>
/// Converts a selected layout element into a bitmap and saves it a the specified location removing the old element and replacing it
/// </summary>
/// <param name="le"></param>
/// <param name="filename"></param>
public virtual void ConvertElementToBitmap(LayoutElement le, string filename)
{
if (le is LayoutBitmap) return;
Bitmap temp = new Bitmap(Convert.ToInt32(le.Size.Width * 3), Convert.ToInt32(le.Size.Height * 3), System.Drawing.Imaging.PixelFormat.Format32bppArgb);
temp.SetResolution(96, 96);
temp.MakeTransparent();
Graphics g = Graphics.FromImage(temp);
g.PageUnit = GraphicsUnit.Pixel;
g.ScaleTransform(300F/100F, 300F/100F);
g.TranslateTransform(-le.LocationF.X,-le.LocationF.Y);
le.Draw(g,true);
g.Dispose();
temp.SetResolution(300, 300);
temp.Save(filename);
temp.Dispose();
LayoutBitmap newLb = new LayoutBitmap();
newLb.Rectangle = le.Rectangle;
newLb.Name = le.Name;
newLb.Filename = filename;
_layoutElements.Insert(_layoutElements.IndexOf(le), newLb);
_layoutElements.Remove(le);
_selectedLayoutElements.Insert(_selectedLayoutElements.IndexOf(le), newLb);
_selectedLayoutElements.Remove(le);
OnSelectionChanged(null);
Invalidate();
}
/// <summary>
/// Allows the user to click on the layout and drag a rectangle where they want to insert an element
/// </summary>
public void AddElementWithMouse(LayoutElement le)
{
_elementToAddWithMouse = le;
ClearSelection();
_mouseMode = MouseMode.StartInsertNewElement;
Cursor = Cursors.Cross;
}