private void treeView1_DragOver(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.None;
ParticleEffectTreeDragDropPacket packet = (ParticleEffectTreeDragDropPacket)e.Data.GetData(typeof(ParticleEffectTreeDragDropPacket));
if (packet == null)
{
return;
}
TreeView tree = (TreeView)packet.sender;
Point pt = new Point(e.X, e.Y);
pt = tree.PointToClient(pt);
TreeNode node = tree.GetNodeAt(pt);
if (node == null)
{
return;
}
if ((ParticleEditorPageEnum)node.Tag != ParticleEditorPageEnum.eEmitter)
{
return;
}
if (packet.emitterIndex == node.Index)
{
return;
}
e.Effect = DragDropEffects.Copy;
}
private void treeView1_DragDrop(object sender, DragEventArgs e)
{
ParticleEffectTreeDragDropPacket packet = (ParticleEffectTreeDragDropPacket)e.Data.GetData(typeof(ParticleEffectTreeDragDropPacket));
if (packet == null)
{
return;
}
TreeView tree = (TreeView)sender;
Point pt = new Point(e.X, e.Y);
pt = tree.PointToClient(pt);
TreeNode node = tree.GetNodeAt(pt);
int index = node.Index;
if (index < 0 || index >= mEffect.Emitters.Count)
{
return;
}
if (packet.emitterIndex < 0 || packet.emitterIndex >= mEffect.Emitters.Count)
{
return;
}
//-- clone the selected emitter
ParticleEmitter clone = mEffect.Emitters[index].clone();
mEffect.Emitters[index] = mEffect.Emitters[packet.emitterIndex];
mEffect.Emitters[packet.emitterIndex] = clone;
refreshTreeView(false);
}
private void treeView1_MouseDown(object sender, MouseEventArgs e)
{
TreeView tree = (TreeView)sender;
TreeNode node = tree.GetNodeAt(e.X, e.Y);
tree.SelectedNode = node;
if (node == null)
{
return;
}
if ((ParticleEditorPageEnum)node.Tag != ParticleEditorPageEnum.eEmitter)
{
return;
}
if (e.Button != MouseButtons.Middle)
{
return;
}
if (node != null)
{
ParticleEffectTreeDragDropPacket packet = new ParticleEffectTreeDragDropPacket();
packet.emitterIndex = node.Index;
packet.sender = treeView1;
treeView1.DoDragDrop(packet, DragDropEffects.Copy);
}
}