/* ----------------------------------------------------------------- */
/// Destroy
/* ----------------------------------------------------------------- */
public static void Destroy(Canvas canvas)
{
if (canvas == null)
{
return;
}
var parent = (ScrollableControl)canvas.Parent;
foreach (var child in parent.Controls.Find("Canvas", false))
{
CanvasPolicy.Close((Canvas)child);
parent.Controls.Remove(child);
child.Dispose();
}
}
/* ----------------------------------------------------------------- */
///
/// Open
///
/// <summary>
/// 指定された PDF ファイルを開いて，最初のページを描画する．
/// MEMO: パスの記憶場所を検討中．現在は，Parent.Tag を利用
/// している．
/// </summary>
///
/* ----------------------------------------------------------------- */
public static void Open(Canvas canvas, string path, string password, FitCondition which)
{
if (canvas == null)
{
return;
}
var engine = canvas.Tag as CanvasEngine;
if (engine != null)
{
CanvasPolicy.Close(canvas);
}
var core = new PDF();
engine = new CanvasEngine(core);
canvas.Tag = engine;
core.UseMuPDF = true;
core.UserPassword = password;
core.OwnerPassword = password;
if (core.LoadPDF(path))
{
core.CurrentPage = 1;
if (which == FitCondition.Height)
{
core.FitToHeight(canvas.Parent.Handle);
core.Zoom = core.Zoom - 1; // 暫定
}
else if (which == FitCondition.Width)
{
core.FitToWidth(canvas.Parent.Handle);
core.Zoom = core.Zoom - 1; // 暫定
}
else
{
core.Zoom = 100;
}
canvas.Parent.Text = System.IO.Path.GetFileNameWithoutExtension(path);
canvas.Parent.Tag = path;
CanvasPolicy.AsyncRender(canvas, true);
}
}