示例#1
0
        private void HandlePrintDocumentPrintPage(object sender, PrintPageEventArgs e)
        {
            if (_targetCanvas == null)
            {
                return;
            }

            var g = e.Graphics;

            g.SmoothingMode      = SmoothingMode.HighQuality;
            g.TextRenderingHint  = TextRenderingHint.AntiAlias;
            g.InterpolationMode  = InterpolationMode.HighQualityBicubic;
            g.CompositingQuality = CompositingQuality.HighQuality;
            g.PixelOffsetMode    = PixelOffsetMode.Default;

            var pages = _targetCanvas.CalcPrintPages(g, e.MarginBounds, 30, FitKind);

            if (_currentPrintPage < pages)
            {
                _targetCanvas.PrintPages(g, e.MarginBounds, _currentPrintPage, 30, FitKind);

                ++_currentPrintPage;
                if (_currentPrintPage < pages)
                {
                    e.HasMorePages = true;
                }
                else
                {
                    e.HasMorePages = false;

                    /// これがないとPrintPreviewDialogの印刷ボタンを押されたときに
                    /// _currentPrintPageがpagesと同じ値になって白紙が印刷される
                    _currentPrintPage = 0;
                }
            }
        }