private void _check(CommandTargetFlags flags)
{
bool require_app = (flags & CommandTargetFlags.RequireApplication) != 0;
bool require_document = (flags & CommandTargetFlags.RequireDocument) != 0;
bool require_page = (flags & CommandTargetFlags.RequirePage) != 0;
require_app = require_app || require_document || require_page;
require_document = require_document || require_page;
this.Application = this._client.Application.GetApplication();
if (require_app && this.Application == null)
{
string msg = string.Format("{0}: No Visio Application available", nameof(CommandTarget));
throw new System.ArgumentException(msg);
}
if (require_document && this.ActiveDocument == null)
{
var doc = this.Application.ActiveDocument;
string errmsg;
this.ActiveDocument = doc;
bool is_drawing = IsDocumentADrawing(this.Application, this.ActiveDocument, out errmsg);
if (is_drawing)
{
this._client.Output.WriteVerbose("{0}: Verified a drawing is available for use", nameof(CommandTarget));
}
else
{
string msg = string.Format("{0}: The Document is not a drawing document", nameof(CommandTarget));
throw new VisioOperationException(msg);
}
}
if (require_document && this.ActiveDocument == null)
{
string msg = string.Format("{0}: No Document", nameof(CommandTarget));
throw new VisioOperationException(msg);
}
if (require_page && this.ActivePage == null)
{
if (this.Application == null)
{
string msg = string.Format("{0}: Internal error application should never be null in this case", nameof(CommandTarget));
throw new VisioOperationException(msg);
}
this.ActivePage = this.Application.ActivePage;
}
if (require_page && this.ActivePage == null)
{
string msg = string.Format("{0}: No Page", nameof(CommandTarget));
throw new VisioOperationException(msg);
}
}
public CommandTarget GetCommandTarget(CommandTargetFlags flags)
{
var ct = new CommandTarget(this, flags);
return(ct);
}
public CommandTarget(Client client, CommandTargetFlags flags)
{
this._client = client;
_check(flags);
}
