public virtual void CreatePdf(String dest)
{
//Initialize PDF document
PdfDocument pdf = new PdfDocument(new PdfWriter(dest));
PdfPage page = pdf.AddNewPage();
PdfCanvas pdfCanvas = new PdfCanvas(page);
Rectangle rectangle = new Rectangle(36, 500, 100, 250);
pdfCanvas.Rectangle(rectangle);
pdfCanvas.Stroke();
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, rectangle);
MyCanvasRenderer renderer = new MyCanvasRenderer(canvas);
canvas.SetRenderer(renderer);
PdfFont font = PdfFontFactory.CreateFont(StandardFonts.TIMES_ROMAN);
PdfFont bold = PdfFontFactory.CreateFont(StandardFonts.TIMES_BOLD);
Text title = new Text("The Strange Case of Dr. Jekyll and Mr. Hyde").SetFont(bold);
Text author = new Text("Robert Louis Stevenson").SetFont(font);
Paragraph p = new Paragraph().Add(title).Add(" by ").Add(author);
while (!renderer.IsFull())
{
canvas.Add(p);
}
//Close document
pdf.Close();
}
public virtual void HandleEvent(Event @event)
{
PdfDocumentEvent docEvent = (PdfDocumentEvent)@event;
PdfDocument pdfDoc = docEvent.GetDocument();
PdfPage page = docEvent.GetPage();
int pageNumber = pdfDoc.GetPageNumber(page);
Rectangle pageSize = page.GetPageSize();
PdfCanvas pdfCanvas = new PdfCanvas(page.NewContentStreamBefore(), page.GetResources(), pdfDoc);
//Set background
Color limeColor = new DeviceCmyk(0.208f, 0, 0.584f, 0);
Color blueColor = new DeviceCmyk(0.445f, 0.0546f, 0, 0.0667f);
pdfCanvas.SaveState()
.SetFillColor(pageNumber % 2 == 1 ? limeColor : blueColor)
.Rectangle(pageSize.GetLeft(), pageSize.GetBottom(), pageSize.GetWidth(), pageSize.GetHeight())
.Fill()
.RestoreState();
//Add header and footer
pdfCanvas.BeginText()
.SetFontAndSize(Helvetica, 9)
.MoveText(pageSize.GetWidth() / 2 - 60, pageSize.GetTop() - 20)
.ShowText("THE TRUTH IS OUT THERE")
.MoveText(60, -pageSize.GetTop() + 30)
.ShowText(pageNumber.ToString())
.EndText();
//Add watermark
Canvas canvas = new iText.Layout.Canvas(pdfCanvas, pdfDoc, page.GetPageSize());
canvas.SetProperty(Property.FONT_COLOR, DeviceRgb.WHITE);
canvas.SetProperty(Property.FONT_SIZE, 60);
canvas.SetProperty(Property.FONT, HelveticaBold);
//canvas.ShowTextAligned(new Paragraph("CONFIDENTIAL"), 298.0f, 421.0f, pageNumber,
// TextAlignment.CENTER, VerticalAlignment.MIDDLE, 45.0f); // not working
pdfCanvas.Release();
}
protected override void DrawTicks(PdfCanvas canvas, PdfPage page)
{
base.DrawTicks(canvas, page);
try
{
float lastTickValue = float.Parse(_data.Columns[0].Label);
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
float x = _originX;
foreach (Column column in _data.Columns)
{
float y = _originY;
float columnValue = float.Parse(column.Label);
if (columnValue >= (lastTickValue + _lineXTicksInterval))
{
lastTickValue = columnValue;
canvas.MoveTo(x, _originY);
canvas.LineTo(x, _originY + _axisHeight * _yScale);
if (_columnLabelAngle == 0.0f)
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.CENTER, VerticalAlignment.TOP, (float)Math.PI / 180.0f * _columnLabelAngle);
}
else if (_columnLabelAngle == 90.0f)
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.RIGHT, VerticalAlignment.MIDDLE, (float)Math.PI / 180.0f * _columnLabelAngle);
}
else
{
layoutCanvas.ShowTextAligned(column.Label, x, _originY - _columnLabelMargin, TextAlignment.RIGHT, VerticalAlignment.TOP, (float)Math.PI / 180.0f * _columnLabelAngle);
}
}
x += _linePointSpace;
}
canvas.Stroke();
}
catch
{
// not numeric column values, bail
return;
}
}
public virtual void HandleEvent(Event @event)
{
PdfDocumentEvent docEvent = (PdfDocumentEvent)@event;
PdfDocument pdf = docEvent.GetDocument();
PdfPage page = docEvent.GetPage();
Rectangle pageSize = page.GetPageSize();
PdfCanvas pdfCanvas = new PdfCanvas(page.NewContentStreamBefore(), page.GetResources(), pdf);
pdfCanvas.SaveState().SetExtGState(this.gState);
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, page.GetPageSize());
canvas.Add(this.img.ScaleAbsolute(pageSize.GetWidth(), pageSize.GetHeight()));
pdfCanvas.RestoreState();
pdfCanvas.Release();
}
/// <summary>Places retrieved text to canvas to a separate layer.</summary>
/// <param name="imageSize">
/// size of the image according to the selected
/// <see cref="ScaleMode"/>
/// </param>
/// <param name="pageText">text that was found on this image (or on this page)</param>
/// <param name="pdfCanvas">canvas to place the text</param>
/// <param name="multiplier">coefficient to adjust text placing on canvas</param>
/// <param name="pageMediaBox">page parameters</param>
private void AddTextToCanvas(Rectangle imageSize, IList <TextInfo> pageText, PdfCanvas pdfCanvas, float multiplier
, Rectangle pageMediaBox)
{
if (pageText != null && pageText.Count > 0)
{
Point imageCoordinates = PdfCreatorUtil.CalculateImageCoordinates(ocrPdfCreatorProperties.GetPageSize(), imageSize
);
foreach (TextInfo item in pageText)
{
String line = item.GetText();
IList <float> coordinates = item.GetBbox();
float left = coordinates[0] * multiplier;
float right = (coordinates[2] + 1) * multiplier - 1;
float top = coordinates[1] * multiplier;
float bottom = (coordinates[3] + 1) * multiplier - 1;
float bboxWidthPt = PdfCreatorUtil.GetPoints(right - left);
float bboxHeightPt = PdfCreatorUtil.GetPoints(bottom - top);
FontProvider fontProvider = GetOcrPdfCreatorProperties().GetFontProvider();
String fontFamily = GetOcrPdfCreatorProperties().GetDefaultFontFamily();
if (!String.IsNullOrEmpty(line) && bboxHeightPt > 0 && bboxWidthPt > 0)
{
Document document = new Document(pdfCanvas.GetDocument());
document.SetFontProvider(fontProvider);
// Scale the text width to fit the OCR bbox
float fontSize = PdfCreatorUtil.CalculateFontSize(document, line, fontFamily, bboxHeightPt, bboxWidthPt);
float lineWidth = PdfCreatorUtil.GetRealLineWidth(document, line, fontFamily, fontSize);
float deltaX = PdfCreatorUtil.GetPoints(left);
float deltaY = imageSize.GetHeight() - PdfCreatorUtil.GetPoints(bottom);
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, pageMediaBox);
canvas.SetFontProvider(fontProvider);
Text text = new Text(line).SetHorizontalScaling(bboxWidthPt / lineWidth);
Paragraph paragraph = new Paragraph(text).SetMargin(0).SetMultipliedLeading(1.2f);
paragraph.SetFontFamily(fontFamily).SetFontSize(fontSize);
paragraph.SetWidth(bboxWidthPt * 1.5f);
if (ocrPdfCreatorProperties.GetTextColor() != null)
{
paragraph.SetFontColor(ocrPdfCreatorProperties.GetTextColor());
}
else
{
paragraph.SetTextRenderingMode(PdfCanvasConstants.TextRenderingMode.INVISIBLE);
}
canvas.ShowTextAligned(paragraph, deltaX + (float)imageCoordinates.x, deltaY + (float)imageCoordinates.y,
TextAlignment.LEFT);
canvas.Close();
}
}
}
}
private static void SingleLimitedCanvasSizeCase(Document document, Paragraph paraOnCanvas, String description
, float canvasHeight, int pageNum)
{
PdfDocument pdfDocument = document.GetPdfDocument();
document.Add(new Paragraph(description).SetBorder(new SolidBorder(ColorConstants.RED, 1)));
PdfCanvas pdfCanvas = new PdfCanvas(pdfDocument.GetPage(pageNum));
Rectangle effectiveArea = document.GetPageEffectiveArea(pdfDocument.GetDefaultPageSize());
Rectangle rectangle = new Rectangle(36, 550, effectiveArea.GetWidth(), canvasHeight + LINES_SPACE_EPS);
pdfCanvas.SaveState().SetFillColor(ColorConstants.MAGENTA).Rectangle(rectangle).Fill().RestoreState();
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, pdfDocument, rectangle);
canvas.Add(paraOnCanvas);
canvas.Close();
}
public virtual void HandleEvent(Event @event)
{
PdfDocumentEvent docEvent = (PdfDocumentEvent)@event;
PdfDocument pdf = docEvent.GetDocument();
PdfPage page = docEvent.GetPage();
int pageNumber = pdf.GetPageNumber(page);
Rectangle pageSize = page.GetPageSize();
PdfCanvas pdfCanvas = new PdfCanvas(page.GetLastContentStream(), page.GetResources(), pdf);
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, pdf, pageSize);
Paragraph p = new Paragraph().Add("Page ").Add(pageNumber.ToString()).Add(" of");
canvas.ShowTextAligned(p, this.x, this.y, TextAlignment.RIGHT);
pdfCanvas.AddXObject(this.placeholder, this.x + this.space, this.y - this.descent);
canvas.Close();
}
public virtual void HandleEvent(Event @event)
{
PdfDocumentEvent docEvent = (PdfDocumentEvent)@event;
PdfDocument pdf = docEvent.GetDocument();
PdfPage page = docEvent.GetPage();
if (pdf.GetPageNumber(page) == 1)
{
return;
}
Rectangle pageSize = page.GetPageSize();
PdfCanvas pdfCanvas = new PdfCanvas(page.GetLastContentStream(), page.GetResources(), pdf);
iText.Layout.Canvas canvas = new iText.Layout.Canvas(pdfCanvas, pageSize);
canvas.ShowTextAligned(this.header, pageSize.GetWidth() / 2, pageSize.GetTop() - 30, TextAlignment.CENTER);
}
protected override void DrawLabels(PdfCanvas canvas, PdfPage page)
{
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
float x;
if (_data.ValueLabel != null)
{
x = _originX - _valueLabelMargin;
layoutCanvas.ShowTextAligned(_data.ValueLabel, x, _originY + _axisHeight * _yScale / 2, TextAlignment.CENTER, VerticalAlignment.MIDDLE, 0.5f * (float)Math.PI);
}
if (_data.Legends.Count == 1)
{
layoutCanvas.ShowTextAligned(_data.Legends[0].Label, _originX + _axisWidth / 2, _originY - _valueLabelMargin, TextAlignment.CENTER, VerticalAlignment.MIDDLE, 0);
}
}
public virtual void WriteTotal(PdfDocument pdf)
{
iText.Layout.Canvas canvas = new iText.Layout.Canvas(this.placeholder, pdf);
canvas.ShowTextAligned(pdf.GetNumberOfPages().ToString(), 0, this.descent, TextAlignment.LEFT);
}
protected override void DrawTicks(PdfCanvas canvas, PdfPage page)
{
float i;
String text;
float textWidth;
float textHeight;
double yOffset = 0;
if (_tickLineWidth == 0.0f)
{
return;
}
if (_yAxisMin < 0)
{
yOffset = _yAxisMin * -1.0 * _yScale;
}
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
// DrawTicks
for (i = (_yAxisMin + _valueAxisInterval); i <= _valueAxisMax; i += _valueAxisInterval)
{
text = i.ToString();
if (_data.FormatPercent)
{
text = text + "%";
}
textWidth = _font.GetWidth(text, _tickFontSize) + _tickLabelMargin;
textHeight = _font.GetAscent(text, _tickFontSize) + _font.GetDescent(text, _tickFontSize);
canvas.MoveTo(_originX, _originY + i * _yScale + yOffset);
canvas.LineTo(_originX + _axisWidth, _originY + i * _yScale + yOffset);
canvas.BeginText()
.SetFontAndSize(_font, _tickFontSize)
.MoveText(_originX - textWidth, _originY + i * _yScale - textHeight / 2 + yOffset)
.SetColor(_tickFontColour, true)
.ShowText(text)
.EndText();
}
canvas.Stroke();
if (_lineXTicks)
{
float lastTickValue = float.Parse(_data.Columns[0].Label);
iText.Layout.Canvas layoutCanvas = new iText.Layout.Canvas(canvas, _pdf, new iText.Kernel.Geom.Rectangle(_canvasWidth, _canvasHeight));
layoutCanvas.SetFont(_font);
layoutCanvas.SetFontSize(_valueFontSize);
layoutCanvas.SetFontColor(_valueFontColour);
canvas.SetLineWidth(_tickLineWidth).SetStrokeColor(_tickColour);
float x = _originX;
int xIndex = 0;
for (xIndex = 0; xIndex < _pointCount; xIndex += (int)_lineXTicksInterval)
{
float y = _originY;
canvas.MoveTo(_originX + xIndex * _linePointSpace, _originY);
canvas.LineTo(_originX + xIndex * _linePointSpace, _originY + _axisHeight * _yScale);
}
canvas.Stroke();
}
}
