/// <summary>Shows a context menu to change the order of the layers</summary>
/// <param name="pos">The position to show the context menu</param>
private void showContextMenu(Point pos)
{
// If the context menu hasn't been created, create one
ContextMenu ctxMenu = new ContextMenu();
ctxMenu.MenuItems.Add(new MenuItem("Plaats naar bovenste niveau",
(object o, EventArgs ea) => { schetscontrol.ChangeLayerOrder(ctxActiveLayer, SchetsControl.ReorderActions.SendToTop); }));
ctxMenu.MenuItems.Add(new MenuItem("Plaats één niveau naar boven",
(object o, EventArgs ea) => { schetscontrol.ChangeLayerOrder(ctxActiveLayer, SchetsControl.ReorderActions.OneUp); })); ;
ctxMenu.MenuItems.Add(new MenuItem("Plaats één niveau naar onder",
(object o, EventArgs ea) => { schetscontrol.ChangeLayerOrder(ctxActiveLayer, SchetsControl.ReorderActions.OneDown); }));
ctxMenu.MenuItems.Add(new MenuItem("Plaats naar onderste niveau",
(object o, EventArgs ea) => { schetscontrol.ChangeLayerOrder(ctxActiveLayer, SchetsControl.ReorderActions.SendToBottom); }));
// Determine if a layer was clicked
// To do so, we loop through the layers from top to bottom
ctxActiveLayer = null;
int layerIndex = schetscontrol.Schets.Layers.Count;
for(; layerIndex != 0; --layerIndex)
{
// Check if we found a layer at the given position
if(schetscontrol.Schets.Layers[layerIndex - 1].IsClicked(pos))
{
ctxActiveLayer = schetscontrol.Schets.Layers[layerIndex - 1];
break;
}
}
--layerIndex;
// If a layer was clicked, we show the context menu
if(ctxActiveLayer != null)
{
ctxMenu.MenuItems[0].Enabled = layerIndex != schetscontrol.Schets.Layers.Count - 1;
ctxMenu.MenuItems[1].Enabled = layerIndex != schetscontrol.Schets.Layers.Count - 1;
ctxMenu.MenuItems[2].Enabled = layerIndex != 0;
ctxMenu.MenuItems[3].Enabled = layerIndex != 0;
ctxMenu.Show(this, pos);
}
}
public virtual void MuisVast(SchetsControl s, Point p)
{
color = s.PenKleur;
penWidth = s.PenWidth;
startpunt = p;
edittingLayer = null;
}
/// <summary>Change the order of the layers by changing the z-index of the given layer</summary>
/// <param name="layer">The layer whose z-index is to be changed</param>
/// <param name="action">How the z-index of the layer should be changed</param>
public void ChangeLayerOrder(Layer layer, ReorderActions action)
{
// If no layer is given, stop here
if(layer == null) return;
// Find the current index of the layer and determine it's new index
int currIndex = Schets.Layers.IndexOf(layer);
int newIndex = currIndex;
switch(action)
{
case ReorderActions.SendToTop:
if(newIndex == Schets.Layers.Count - 1) return;
newIndex = Schets.Layers.Count - 1;
break;
case ReorderActions.OneUp:
if(newIndex == Schets.Layers.Count - 1) return;
++newIndex;
break;
case ReorderActions.OneDown:
if(newIndex == 0) return;
--newIndex;
break;
case ReorderActions.SendToBottom:
if(newIndex == 0) return;
newIndex = 0;
break;
}
// Change the z-index of the layer
Schets.Layers.RemoveAt(currIndex);
Schets.Layers.Insert(newIndex, layer);
// Commit the action
CommitAction(new SchetsActionReorder(currIndex, newIndex));
// Redraw
Invalidate();
}
// Commit the move action when the tool changes
public virtual void ToolChange(SchetsControl s)
{
if(selectedLayer != null)
{
s.CommitAction(new SchetsActionMove(selectedLayer, selectedLayer.Location.X - oldLayerPos.X, selectedLayer.Location.Y - oldLayerPos.Y));
s.Invalidate();
selectedLayer = null;
}
}
public virtual void MuisVast(SchetsControl s, Point p)
{
// Loop through the layers from top to bottom to determine whether a layer is selected
for(int i = s.Schets.Layers.Count; i != 0; --i)
{
// Check if we found a layer at the given position
if(s.Schets.Layers[i - 1].IsClicked(p))
{
selectedLayer = s.Schets.Layers[i - 1];
oldLayerPos = selectedLayer.Location;
lastPoint = p;
break;
}
}
}
/// <summary>Construct the action</summary>
/// <param name="layer">The layer that is added to the SchetsControl</param>
public SchetsActionAddLayer(Layer layer)
{
addedLayer = layer;
}
/// <summary>Construct the action</summary>
/// <param name="layer">The layer that was removed from the SchetsControl</param>
/// <param name="i">The index of the layer</param>
public SchetsActionRemoveLayer(Layer layer, int i)
{
removedLayer = layer;
index = i;
}
/// <summary>Constructor</summary>
/// <param name="l">The layer that was moved</param>
/// <param name="deltaX">The horizontal movement</param>
/// <param name="deltaY">The vertical movement</param>
public SchetsActionMove(Layer l, int deltaX, int deltaY)
{
layer = l;
dx = deltaX;
dy = deltaY;
}