/// <summary>
/// Show Properties dialog. Return true if list is changed
/// </summary>
/// <param name="parent"></param>
/// <returns></returns>
public bool ShowPropertiesDialog(DrawArea parent)
{
if (SelectionCount < 1)
{
return(false);
}
GraphicsProperties properties = GetProperties();
PropertiesDialog dlg = new PropertiesDialog();
dlg.Properties = properties;
CommandChangeState c = new CommandChangeState(this);
if (dlg.ShowDialog(parent) != DialogResult.OK)
{
return(false);
}
if (ApplyProperties(properties))
{
c.NewState(this);
parent.AddCommandToHistory(c);
}
return(true);
}
/// <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);
}
}
