/// <summary>
/// verschiebt Devicesymbol
/// </summary>
private void siteViewItem_MouseMove(object sender, MouseEventArgs e)
{
try
{
// wenn linke Maustaste gedrückt
if (e.Button == MouseButtons.Left)
{
// Devicesymbol referenzieren
SiteViewItem siteViewItem = (SiteViewItem)sender;
// max. Position bestimmen
int maxLeft = Math.Max(pictureBoxSite.Width - siteViewItem.Width, 0);
int maxTop = Math.Max(pictureBoxSite.Height - siteViewItem.Height, 0);
// neue Position bestimmen
int left = siteViewItem.Left + e.X - _dragLeft;
int top = siteViewItem.Top + e.Y - _dragTop;
// neue Position korrigieren
left = Math.Max(left, 0);
left = Math.Min(left, maxLeft);
top = Math.Max(top, 0);
top = Math.Min(top, maxTop);
// Devicesymbol verschieben
siteViewItem.Left = left;
siteViewItem.Top = top;
}
}
catch (Exception ex)
{
Logger.Log.Error("Error on moving device icon.", ex);
}
}
/// <summary>
/// fügt Device zu Raum hinzu
/// </summary>
private void _site_OnAddDevice(Device device)
{
try
{
// neues Devicesymbol erzeugen und konfigurieren
SiteViewItem siteViewItem = new SiteViewItem(device);
siteViewItem.RefreshParameters();
siteViewItem.Tag = device.Code;
// Devicesymbol zu Ansicht, Liste und Index hinzufügen
this.Controls.Add(siteViewItem);
siteViewItem.Parent = pictureBoxSite;
siteViewItem.BringToFront();
_siteViewItems.Add(siteViewItem);
_siteViewItemsHash.Add(device.Code, siteViewItem);
// Devicesymbol positionieren
ArrangeDevice(siteViewItem);
// EventHandler für Devicesymbol initialisieren
siteViewItem.MouseDown += new MouseEventHandler(siteViewItem_MouseDown);
siteViewItem.MouseMove += new MouseEventHandler(siteViewItem_MouseMove);
siteViewItem.Move += new EventHandler(siteViewItem_Move);
siteViewItem.GotFocus += new EventHandler(siteViewItem_GotFocus);
siteViewItem.LostFocus += new EventHandler(siteViewItem_LostFocus);
}
catch (Exception ex)
{
Logger.Log.Error("Error on adding device.", ex);
}
}
/// <summary>
/// aktualisiert ausgewähltes Devicesymbol
/// </summary>
private void siteViewItem_LostFocus(object sender, EventArgs e)
{
// ausgewähltes Devicesymbol aktualisieren
_selectedSiteViewItem = null;
// Änderung signalisieren
RaiseOnSelectedItemChanged();
}
/// <summary>
/// ordnet einzelnes Device neu an, wenn Position ungültig
/// </summary>
private void RearrangeDevice(SiteViewItem siteViewItem)
{
// max. Position bestimmen
int maxLeft = Math.Max(pictureBoxSite.Width - siteViewItem.Width, 0);
int maxTop = Math.Max(pictureBoxSite.Height - siteViewItem.Height, 0);
// wenn Position ungültig, korrigieren
if ((siteViewItem.Left > maxLeft) || (siteViewItem.Top > maxTop))
{
ArrangeDevice(siteViewItem);
}
}
/// <summary>
/// ordnet Devicesymbol an erster freier Position an
/// </summary>
private void ArrangeDevice(SiteViewItem siteViewItem)
{
// neue Position initialisieren
int left = 0;
int top = 0;
// max. Position bestimmen
int maxLeft = Math.Max(pictureBoxSite.Width - siteViewItem.Width, 0);
int maxTop = Math.Max(pictureBoxSite.Height - siteViewItem.Height, 0);
// über alle möglichen Positionen suchen und nach Möglichkeit Steuerelement anordnen
bool arranged = false;
while ((top <= maxTop) && (!arranged))
{
left = 0;
while ((left <= maxLeft) && (!arranged))
{
bool overlapped = false;
foreach (SiteViewItem item in _siteViewItems)
{
if (item != siteViewItem)
{
if ((left > item.Left - siteViewItem.Width) &&
(left < item.Left + item.Width) &&
(top > item.Top - siteViewItem.Height) &&
(top < item.Top + item.Height))
{
overlapped = true;
break;
}
}
}
if (!overlapped)
{
siteViewItem.Left = left;
siteViewItem.Top = top;
arranged = true;
}
left += siteViewItem.Width;
}
top += siteViewItem.Height;
}
// wenn keine freie Position gefunden, Steuerelement links oben anordnen
if (!arranged)
{
siteViewItem.Left = 0;
siteViewItem.Top = 0;
}
}
/// <summary>
/// beschränkt Position des Devicesymbols
/// </summary>
private void siteViewItem_Move(object sender, EventArgs e)
{
try
{
// Devicesymbol referenzieren
SiteViewItem siteViewItem = (SiteViewItem)sender;
// Devicesymbol prüfen und ggf. neu anordnen
RearrangeDevice(siteViewItem);
}
catch (Exception ex)
{
Logger.Log.Error("Error on moving device icon.", ex);
}
}
/// <summary>
/// entfernt Device aus Raum
/// </summary>
private void _site_OnRemoveDevice(Device device)
{
try
{
// Devicesymbol in Index suchen
SiteViewItem siteViewItem = (SiteViewItem)_siteViewItemsHash[device.Code];
// wenn Devicesymbol gefunden, von Ansicht, Liste und Index entfernen
if (siteViewItem != null)
{
this.Controls.Remove(siteViewItem);
siteViewItem.Dispose();
_siteViewItems.Remove(siteViewItem);
_siteViewItemsHash.Remove(device.Code);
}
}
catch (Exception ex)
{
Logger.Log.Error("Error on removing device.", ex);
}
}
/// <summary>
/// speichert releative Mausposition und startet Ziehoperation
/// </summary>
private void siteViewItem_MouseDown(object sender, MouseEventArgs e)
{
try
{
// wenn linke Maustaste gedrückt
if (e.Button == MouseButtons.Left)
{
// Devicesymbol referenzieren
SiteViewItem siteViewItem = (SiteViewItem)sender;
// relative Mausposition merken
_dragLeft = e.X;
_dragTop = e.Y;
// Devicesymbol in den Vordergrund bringen
siteViewItem.BringToFront();
}
}
catch (Exception ex)
{
Logger.Log.Error("Error on moving device icon.", ex);
}
}
/// <summary>
/// aktualisiert Device
/// </summary>
private void _site_OnRefreshDevice(Device device)
{
try
{
// Devicesymbol in Index suchen
SiteViewItem siteViewItem = (SiteViewItem)_siteViewItemsHash[device.Code];
// wenn Devicesymbol gefunden, aktualisieren
if (siteViewItem != null)
{
siteViewItem.RefreshParameters();
}
// wenn Devicesymbol ausgewählt, Änderung signalisieren
if ((_selectedSiteViewItem != null) && (_selectedSiteViewItem == siteViewItem))
{
RaiseOnSelectedItemChanged();
}
}
catch (Exception ex)
{
Logger.Log.Error("Error on refreshing device.", ex);
}
}