private void mnuGroup_Click(object sender, EventArgs e)
{
BaseController canvasController = serviceManager.Get <IFlowSharpCanvasService>().ActiveController;
if (canvasController.SelectedElements.Any())
{
List <GraphicElement> selectedShapes = canvasController.SelectedElements.ToList();
FlowSharpLib.GroupBox groupBox = new FlowSharpLib.GroupBox(canvasController.Canvas);
canvasController.UndoStack.UndoRedo("Group",
() =>
{
// ElementCache.Instance.Remove(groupBox);
canvasController.GroupShapes(groupBox);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElement(groupBox);
},
() =>
{
// ElementCache.Instance.Add(groupBox);
canvasController.UngroupShapes(groupBox, false);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElements(selectedShapes);
});
}
}
private void mnuUngroup_Click(object sender, EventArgs e)
{
// At this point, we can only ungroup one group.
if (canvasController.SelectedElements.Count == 1)
{
FlowSharpLib.GroupBox groupBox = canvasController.SelectedElements[0] as FlowSharpLib.GroupBox;
if (groupBox != null)
{
List <GraphicElement> groupedShapes = new List <GraphicElement>(groupBox.GroupChildren);
canvasController.UndoStack.UndoRedo("Ungroup",
() =>
{
ElementCache.Instance.Add(groupBox);
canvasController.UngroupShapes(groupBox, false);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElements(groupedShapes);
},
() =>
{
ElementCache.Instance.Remove(groupBox);
canvasController.GroupShapes(groupBox);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElement(groupBox);
});
}
}
}
private void mnuGroup_Click(object sender, EventArgs e)
{
if (canvasController.SelectedElements.Any())
{
FlowSharpLib.GroupBox groupBox = canvasController.GroupShapes(canvasController.SelectedElements);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElement(groupBox);
}
}
private void CollapseGroupBox(BaseController canvasController, FlowSharpLib.GroupBox gb, IEnumerable <GraphicElement> children)
{
canvasController.Redraw(gb, _ =>
{
gb.SetCollapsedState();
gb.SaveExpandedSize();
canvasController.Elements.Where(el => el.Parent == gb).ForEach(el => el.Visible = false);
Rectangle r = gb.DisplayRectangle;
gb.DisplayRectangle = new Rectangle(r.Location, new Size(r.Width, 30));
// Update connections after display rectangle has been updated, as this adjusts the connection points.
canvasController.UpdateConnections(gb);
});
// In a collapse, the children, being intersecting with the groupbox, will be redrawn.
}
private void ExpandGroupBox(BaseController canvasController, FlowSharpLib.GroupBox gb, IEnumerable <GraphicElement> children)
{
canvasController.Redraw(gb, _ =>
{
gb.SetExpandedState();
Rectangle r = gb.DisplayRectangle;
gb.DisplayRectangle = new Rectangle(r.Location, gb.ExpandedSize);
// Update connections after display rectangle has been updated, as this adjusts the connection points.
canvasController.UpdateConnections(gb);
});
// In an expand , not all the children may redraw because the collapsed groupbox does not intersect them!
children.ForEach(el =>
{
el.Visible = true;
el.Redraw();
});
}
private void mnuUngroup_Click(object sender, EventArgs e)
{
BaseController canvasController = serviceManager.Get <IFlowSharpCanvasService>().ActiveController;
// At this point, we can only ungroup one group.
if (canvasController.SelectedElements.Count == 1)
{
FlowSharpLib.GroupBox groupBox = canvasController.SelectedElements[0] as FlowSharpLib.GroupBox;
if (groupBox != null)
{
List <GraphicElement> groupedShapes = new List <GraphicElement>(groupBox.GroupChildren);
bool collapsed = groupBox.State == FlowSharpLib.GroupBox.CollapseState.Collapsed; // For closure.
canvasController.UndoStack.UndoRedo("Ungroup",
() =>
{
if (collapsed)
{
var children = canvasController.Elements.Where(el => el.Parent == groupBox);
ExpandGroupBox(canvasController, groupBox, children);
}
// ElementCache.Instance.Add(groupBox);
canvasController.UngroupShapes(groupBox, false);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElements(groupedShapes);
},
() =>
{
// ElementCache.Instance.Remove(groupBox);
canvasController.GroupShapes(groupBox);
canvasController.DeselectCurrentSelectedElements();
canvasController.SelectElement(groupBox);
if (collapsed)
{
var children = canvasController.Elements.Where(el => el.Parent == groupBox);
CollapseGroupBox(canvasController, groupBox, children);
}
});
}
}
}