private void button4_Click(object sender, EventArgs e)
{
if (pictureBox1.Image != null)
{
pictureBox1.Image.Dispose();
}
PictureBox pic = new PictureBox();
pic.Width = 800;
pic.Height = 1024;
_pdfDoc.FitToWidth(pic.Handle);
pic.Height = _pdfDoc.PageHeight;
_pdfDoc.RenderPage(pic.Handle);
/*Added since 1.0.6.2*/
_pdfDoc.CurrentX = 0;
_pdfDoc.CurrentY = 0;
_pdfDoc.ClientBounds = new Rectangle(0, 0, _pdfDoc.PageWidth, _pdfDoc.PageHeight);
_backbuffer = new Bitmap(_pdfDoc.PageWidth, _pdfDoc.PageHeight);
using (Graphics g = Graphics.FromImage(_backbuffer))
{
/*New thread safe method*/
_pdfDoc.DrawPageHDC(g.GetHdc());
g.ReleaseHdc();
}
pic.Dispose();
pictureBox1.Image = _backbuffer;
}
private void ApplyZoomToPDF(PictureBox pictureBox, object mode)
{
pictureBox.Width += SystemInformation.VerticalScrollBarWidth;
if (mode.GetType() == typeof(ViewMode))
{
if ((ViewMode)mode == ViewMode.FIT_WIDTH)
{
pdfDoc.FitToWidth(pictureBox.Handle);
}
else if ((ViewMode)mode == ViewMode.FIT_TO_SCREEN)
{
pdfDoc.FitToHeight(pictureBox.Handle);
if (pdfDoc.PageWidth > pdfDoc.PageHeight)
{
pdfDoc.FitToWidth(pictureBox.Handle);
}
}
}
else if (mode.GetType() == typeof(double))
{
pdfDoc.Zoom = Math.Abs((double)mode);
}
pictureBox.Width -= SystemInformation.VerticalScrollBarWidth;
}
/* ----------------------------------------------------------------- */
///
/// 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);
}
}
/* ----------------------------------------------------------------- */
///
/// 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);
}
}