private void tsbZoomReset_Click(object sender, EventArgs e)
{
if (!CanControl)
{
CommandPointer();
return;
}
DrawArea.Zoom = 1.0f;
DrawArea.Invalidate();
}
/// <summary>
/// Right mouse button is released
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
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)
{
// after resizing
resizedObject.Normalize();
if (drawArea.UpdateDrawObject != null)
{
List <DrawObject> drawObjectList = new List <DrawObject>();
drawObjectList.Add(resizedObject);
drawArea.UpdateDrawObject.BeginInvoke(drawObjectList, null, null);
}
resizedObject = null;
}
drawArea.Capture = false;
drawArea.Invalidate();
if (commandChangeState != null && wasMove)
{
if (drawArea.UpdateDrawObject != null)
{
List <DrawObject> drawObjectList = new List <DrawObject>();
foreach (DrawObject o in drawArea.TheLayers[al].Graphics.Selection)
{
drawObjectList.Add(o);
}
drawArea.UpdateDrawObject.BeginInvoke(drawObjectList, null, null);
}
// Keep state after moving/resizing and add command to history
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;
int al = drawArea.TheLayers.ActiveLayerIndex;
if (e.Button ==
MouseButtons.Left)
{
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
drawArea.TheLayers[al].Graphics[0].MoveHandleTo(point, 5);
drawArea.Invalidate();
}
}
/// <summary>
/// Adjust the zoom by the amount given, within reason
/// </summary>
/// <param name="_amount">float value to adjust zoom by - may be positive or negative</param>
private void AdjustZoom(float _amount)
{
DrawArea.Zoom += _amount;
if (DrawArea.Zoom < .1f)
{
DrawArea.Zoom = .1f;
}
if (DrawArea.Zoom > 10)
{
DrawArea.Zoom = 10f;
}
DrawArea.Invalidate();
SetStateOfControls();
}
/// <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)
{
int al = drawArea.TheLayers.ActiveLayerIndex;
drawArea.TheLayers[al].Graphics.UnselectAll();
o.Selected = true;
o.Dirty = true;
// Set the object id now
o.ID = DrawObject.sCurrentDrawObjectId++;
drawArea.TheLayers[al].Graphics.Add(o);
drawArea.Capture = true;
mDrawObject = o;
drawArea.Invalidate();
}
private void tsbPanReset_Click(object sender, EventArgs e)
{
if (!CanControl)
{
CommandPointer();
return;
}
_panMode = false;
if (tsbPanMode.Checked)
{
tsbPanMode.Checked = false;
}
DrawArea.Panning = false;
DrawArea.PanX = 0;
DrawArea.PanY = DrawArea.OriginalPanY;
DrawArea.Invalidate();
}
/// <summary>
/// Mouse move - resize new polygon
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
drawArea.Cursor = Cursor;
if (e.Button !=
MouseButtons.Left)
{
return;
}
if (newPolyLine == null)
{
return; // precaution
}
Point point = drawArea.BackTrackMouse(new Point(e.X, e.Y));
// move last point
newPolyLine.MoveHandleTo(point, newPolyLine.HandleCount);
drawArea.Invalidate();
}
/// <summary>
/// Left mouse is released.
/// New object is created and resized.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseUp(DrawArea drawArea, MouseEventArgs e)
{
int al = drawArea.TheLayers.ActiveLayerIndex;
if (drawArea.TheLayers[al].Graphics.Count > 0)
{
drawArea.TheLayers[al].Graphics[0].Normalize();
}
if ((drawArea.ActiveTool != DrawArea.DrawToolType.Polygon) ||
((drawArea.ActiveTool == DrawArea.DrawToolType.Polygon) && (e.Button == MouseButtons.Right)))
{
drawArea.ActiveTool = DrawArea.DrawToolType.Pointer;
drawArea.AddDrawObject?.BeginInvoke(mDrawObject, null, null);
drawArea.AddCommandToHistory(new CommandAdd(mDrawObject));
mDrawObject = null;
}
drawArea.Capture = false;
drawArea.Invalidate();
}
/// <summary>
/// Rotate the selected Object(s)
/// </summary>
/// <param name="p">Amount to rotate. Negative is Left, Positive is Right, Zero indicates Reset to zero</param>
private void RotateObject(int p)
{
int al = DrawArea.TheLayers.ActiveLayerIndex;
for (int i = 0; i < DrawArea.TheLayers[al].Graphics.Count; i++)
{
if (DrawArea.TheLayers[al].Graphics[i].Selected)
{
if (p == 0)
{
DrawArea.TheLayers[al].Graphics[i].Rotation = 0;
}
else
{
DrawArea.TheLayers[al].Graphics[i].Rotation += p;
}
}
}
DrawArea.Invalidate();
SetStateOfControls();
}
private void MainForm_KeyDown(object sender, KeyEventArgs e)
{
int al = drawArea.TheLayers.ActiveLayerIndex;
switch (e.KeyCode)
{
case Keys.Delete:
drawArea.TheLayers[al].Graphics.DeleteSelection();
drawArea.Invalidate();
break;
case Keys.Right:
drawArea.PanX -= 10;
drawArea.Invalidate();
break;
case Keys.Left:
drawArea.PanX += 10;
drawArea.Invalidate();
break;
case Keys.Up:
if (e.KeyCode == Keys.Up &&
e.Shift)
{
AdjustZoom(.1f);
}
else
{
drawArea.PanY += 10;
}
drawArea.Invalidate();
break;
case Keys.Down:
if (e.KeyCode == Keys.Down &&
e.Shift)
{
AdjustZoom(-.1f);
}
else
{
drawArea.PanY -= 10;
}
drawArea.Invalidate();
break;
case Keys.ControlKey:
_controlKey = true;
break;
default:
break;
}
drawArea.Invalidate();
SetStateOfControls();
//keyControl.Process_KeyDown(sender, e);
}
/// <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 = drawArea.BackTrackMouse(new Point(e.X, e.Y));
// Test for resizing (only if control is selected, cursor is on the handle)
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;
// keep resized object in class members
resizedObject = o;
resizedObjectHandle = handleNumber;
// Since we want to resize only one object, unselect all other objects
drawArea.TheLayers[al].Graphics.UnselectAll();
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
break;
}
}
// Test for move (cursor is on the object)
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 all if Ctrl is not pressed and clicked object is not selected yet
if ((Control.ModifierKeys & Keys.Control) == 0 &&
!o.Selected)
{
drawArea.TheLayers[al].Graphics.UnselectAll();
}
// Select clicked object
o.Selected = true;
commandChangeState = new CommandChangeState(drawArea.TheLayers);
drawArea.Cursor = Cursors.SizeAll;
}
}
if ((resizedObject == null) && (selectMode == SelectionMode.None) && (!drawArea.Panning))
{
drawArea.MouseDownArea?.Invoke(point.X, point.Y);
}
// Net selection
if (selectMode == SelectionMode.None)
{
// click on background
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.Invalidate();
}
/// <summary>
/// Mouse is moved.
/// None button is pressed, ot left button is pressed.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
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;
//toolTip.InitialDelay = 1;
// set cursor when mouse button is not pressed
if (e.Button ==
MouseButtons.None)
{
Cursor cursor = null;
if (drawArea.TheLayers[al].Graphics != null)
{
// Hide tooltip in case it was displayed
//toolTip.Hide(drawArea);
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 (n == 0)
// toolTip.Show(drawArea.TheLayers[al].Graphics[i].TipText, drawArea, point, 250);
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button !=
MouseButtons.Left)
{
return;
}
// Left button is pressed
// Find difference between previous and current position
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.Invalidate();
}
}
// move
if (selectMode == SelectionMode.Move)
{
int n = drawArea.TheLayers[al].Graphics.SelectionCount;
for (int i = 0; i < n; i++)
{
DrawObject o = drawArea.TheLayers[al].Graphics.GetSelectedObject(i);
if (o != null)
{
o.Move(dx, dy);
if (!o.IsInRectngle(drawArea.Boundary, drawArea.ScaleX, drawArea.ScaleY))
{
o.Move(-dx, -dy);
}
}
}
drawArea.Cursor = Cursors.SizeAll;
drawArea.Invalidate();
}
if (selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = DrawRectangle.GetNormalizedRectangle(startPoint, lastPoint);
drawArea.Invalidate();
return;
}
}
