/// <summary>Creates new MetaState</summary>
public MetaState()
{
savedStates = new Stack <iText.Kernel.Pdf.Canvas.Wmf.MetaState>();
MetaObjects = new List <MetaObject>();
currentPoint = new Point(0, 0);
currentPen = new MetaPen();
currentBrush = new MetaBrush();
currentFont = new MetaFont();
}
/// <summary>Sets every field of this MetaState to the values of the fields of the specified MetaState.</summary>
/// <param name="state">state to copy</param>
public virtual void SetMetaState(iText.Kernel.Pdf.Canvas.Wmf.MetaState state)
{
savedStates = state.savedStates;
MetaObjects = state.MetaObjects;
currentPoint = state.currentPoint;
currentPen = state.currentPen;
currentBrush = state.currentBrush;
currentFont = state.currentFont;
currentBackgroundColor = state.currentBackgroundColor;
currentTextColor = state.currentTextColor;
backgroundMode = state.backgroundMode;
polyFillMode = state.polyFillMode;
textAlign = state.textAlign;
lineJoin = state.lineJoin;
offsetWx = state.offsetWx;
offsetWy = state.offsetWy;
extentWx = state.extentWx;
extentWy = state.extentWy;
scalingX = state.scalingX;
scalingY = state.scalingY;
}
/// <summary>Stroke and fill the MetaPen and MetaBrush paths.</summary>
public virtual void StrokeAndFill()
{
MetaPen pen = state.GetCurrentPen();
MetaBrush brush = state.GetCurrentBrush();
int penStyle = pen.GetStyle();
int brushStyle = brush.GetStyle();
if (penStyle == MetaPen.PS_NULL)
{
cb.ClosePath();
if (state.GetPolyFillMode() == MetaState.ALTERNATE)
{
cb.EoFill();
}
else
{
cb.Fill();
}
}
else
{
bool isBrush = brushStyle == MetaBrush.BS_SOLID || brushStyle == MetaBrush.BS_HATCHED && state.GetBackgroundMode
() == MetaState.OPAQUE;
if (isBrush)
{
if (state.GetPolyFillMode() == MetaState.ALTERNATE)
{
cb.ClosePathEoFillStroke();
}
else
{
cb.ClosePathFillStroke();
}
}
else
{
cb.ClosePathStroke();
}
}
}
/// <summary>Return true if the pen style is null and if it isn't a brush.</summary>
/// <param name="isRectangle">
/// value to decide how to change the state. If true state.setLineJoinRectangle(cb) is called,
/// if false state.setLineJoinPolygon(cb) is called.
/// </param>
/// <returns>true if the pen style is null and if it isn't a brush</returns>
public virtual bool IsNullStrokeFill(bool isRectangle)
{
MetaPen pen = state.GetCurrentPen();
MetaBrush brush = state.GetCurrentBrush();
bool noPen = pen.GetStyle() == MetaPen.PS_NULL;
int style = brush.GetStyle();
bool isBrush = style == MetaBrush.BS_SOLID || style == MetaBrush.BS_HATCHED && state.GetBackgroundMode() ==
MetaState.OPAQUE;
bool result = noPen && !isBrush;
if (!noPen)
{
if (isRectangle)
{
state.SetLineJoinRectangle(cb);
}
else
{
state.SetLineJoinPolygon(cb);
}
}
return(result);
}
/// <summary>Reads and processes all the data of the InputMeta.</summary>
/// <exception cref="System.IO.IOException"/>
public virtual void ReadAll()
{
if (@in.ReadInt() != unchecked ((int)(0x9AC6CDD7)))
{
throw new PdfException(PdfException.NotAPlaceableWindowsMetafile);
}
@in.ReadWord();
left = @in.ReadShort();
top = @in.ReadShort();
right = @in.ReadShort();
bottom = @in.ReadShort();
inch = @in.ReadWord();
state.SetScalingX((float)(right - left) / (float)inch * 72f);
state.SetScalingY((float)(bottom - top) / (float)inch * 72f);
state.SetOffsetWx(left);
state.SetOffsetWy(top);
state.SetExtentWx(right - left);
state.SetExtentWy(bottom - top);
@in.ReadInt();
@in.ReadWord();
@in.Skip(18);
int tsize;
int function;
cb.SetLineCapStyle(PdfCanvasConstants.LineCapStyle.ROUND);
cb.SetLineJoinStyle(PdfCanvasConstants.LineJoinStyle.ROUND);
for (; ;)
{
int lenMarker = @in.GetLength();
tsize = @in.ReadInt();
if (tsize < 3)
{
break;
}
function = @in.ReadWord();
switch (function)
{
case 0: {
break;
}
case META_CREATEPALETTE:
case META_CREATEREGION:
case META_DIBCREATEPATTERNBRUSH: {
state.AddMetaObject(new MetaObject());
break;
}
case META_CREATEPENINDIRECT: {
MetaPen pen = new MetaPen();
pen.Init(@in);
state.AddMetaObject(pen);
break;
}
case META_CREATEBRUSHINDIRECT: {
MetaBrush brush = new MetaBrush();
brush.Init(@in);
state.AddMetaObject(brush);
break;
}
case META_CREATEFONTINDIRECT: {
MetaFont font = new MetaFont();
font.Init(@in);
state.AddMetaObject(font);
break;
}
case META_SELECTOBJECT: {
int idx = @in.ReadWord();
state.SelectMetaObject(idx, cb);
break;
}
case META_DELETEOBJECT: {
int idx = @in.ReadWord();
state.DeleteMetaObject(idx);
break;
}
case META_SAVEDC: {
state.SaveState(cb);
break;
}
case META_RESTOREDC: {
int idx = @in.ReadShort();
state.RestoreState(idx, cb);
break;
}
case META_SETWINDOWORG: {
state.SetOffsetWy(@in.ReadShort());
state.SetOffsetWx(@in.ReadShort());
break;
}
case META_SETWINDOWEXT: {
state.SetExtentWy(@in.ReadShort());
state.SetExtentWx(@in.ReadShort());
break;
}
case META_MOVETO: {
int y = @in.ReadShort();
Point p = new Point(@in.ReadShort(), y);
state.SetCurrentPoint(p);
break;
}
case META_LINETO: {
int y = @in.ReadShort();
int x = @in.ReadShort();
Point p = state.GetCurrentPoint();
cb.MoveTo(state.TransformX((int)p.GetX()), state.TransformY((int)p.GetY()));
cb.LineTo(state.TransformX(x), state.TransformY(y));
cb.Stroke();
state.SetCurrentPoint(new Point(x, y));
break;
}
case META_POLYLINE: {
state.SetLineJoinPolygon(cb);
int len = @in.ReadWord();
int x = @in.ReadShort();
int y = @in.ReadShort();
cb.MoveTo(state.TransformX(x), state.TransformY(y));
for (int k = 1; k < len; ++k)
{
x = @in.ReadShort();
y = @in.ReadShort();
cb.LineTo(state.TransformX(x), state.TransformY(y));
}
cb.Stroke();
break;
}
case META_POLYGON: {
if (IsNullStrokeFill(false))
{
break;
}
int len = @in.ReadWord();
int sx = @in.ReadShort();
int sy = @in.ReadShort();
cb.MoveTo(state.TransformX(sx), state.TransformY(sy));
for (int k = 1; k < len; ++k)
{
int x = @in.ReadShort();
int y = @in.ReadShort();
cb.LineTo(state.TransformX(x), state.TransformY(y));
}
cb.LineTo(state.TransformX(sx), state.TransformY(sy));
StrokeAndFill();
break;
}
case META_POLYPOLYGON: {
if (IsNullStrokeFill(false))
{
break;
}
int numPoly = @in.ReadWord();
int[] lens = new int[numPoly];
for (int k = 0; k < lens.Length; ++k)
{
lens[k] = @in.ReadWord();
}
for (int j = 0; j < lens.Length; ++j)
{
int len = lens[j];
int sx = @in.ReadShort();
int sy = @in.ReadShort();
cb.MoveTo(state.TransformX(sx), state.TransformY(sy));
for (int k = 1; k < len; ++k)
{
int x = @in.ReadShort();
int y = @in.ReadShort();
cb.LineTo(state.TransformX(x), state.TransformY(y));
}
cb.LineTo(state.TransformX(sx), state.TransformY(sy));
}
StrokeAndFill();
break;
}
case META_ELLIPSE: {
if (IsNullStrokeFill(state.GetLineNeutral()))
{
break;
}
int b = @in.ReadShort();
int r = @in.ReadShort();
int t = @in.ReadShort();
int l = @in.ReadShort();
cb.Arc(state.TransformX(l), state.TransformY(b), state.TransformX(r), state.TransformY(t), 0, 360);
StrokeAndFill();
break;
}
case META_ARC: {
if (IsNullStrokeFill(state.GetLineNeutral()))
{
break;
}
float yend = state.TransformY(@in.ReadShort());
float xend = state.TransformX(@in.ReadShort());
float ystart = state.TransformY(@in.ReadShort());
float xstart = state.TransformX(@in.ReadShort());
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = GetArc(cx, cy, xstart, ystart);
float arc2 = GetArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
{
arc2 += 360;
}
cb.Arc(l, b, r, t, arc1, arc2);
cb.Stroke();
break;
}
case META_PIE: {
if (IsNullStrokeFill(state.GetLineNeutral()))
{
break;
}
float yend = state.TransformY(@in.ReadShort());
float xend = state.TransformX(@in.ReadShort());
float ystart = state.TransformY(@in.ReadShort());
float xstart = state.TransformX(@in.ReadShort());
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = GetArc(cx, cy, xstart, ystart);
float arc2 = GetArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
{
arc2 += 360;
}
IList <double[]> ar = PdfCanvas.BezierArc(l, b, r, t, arc1, arc2);
if (ar.Count == 0)
{
break;
}
double[] pt = ar[0];
cb.MoveTo(cx, cy);
cb.LineTo(pt[0], pt[1]);
for (int k = 0; k < ar.Count; ++k)
{
pt = ar[k];
cb.CurveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
}
cb.LineTo(cx, cy);
StrokeAndFill();
break;
}
case META_CHORD: {
if (IsNullStrokeFill(state.GetLineNeutral()))
{
break;
}
float yend = state.TransformY(@in.ReadShort());
float xend = state.TransformX(@in.ReadShort());
float ystart = state.TransformY(@in.ReadShort());
float xstart = state.TransformX(@in.ReadShort());
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
float cx = (r + l) / 2;
float cy = (t + b) / 2;
float arc1 = GetArc(cx, cy, xstart, ystart);
float arc2 = GetArc(cx, cy, xend, yend);
arc2 -= arc1;
if (arc2 <= 0)
{
arc2 += 360;
}
IList <double[]> ar = PdfCanvas.BezierArc(l, b, r, t, arc1, arc2);
if (ar.Count == 0)
{
break;
}
double[] pt = ar[0];
cx = (float)pt[0];
cy = (float)pt[1];
cb.MoveTo(cx, cy);
for (int k = 0; k < ar.Count; ++k)
{
pt = ar[k];
cb.CurveTo(pt[2], pt[3], pt[4], pt[5], pt[6], pt[7]);
}
cb.LineTo(cx, cy);
StrokeAndFill();
break;
}
case META_RECTANGLE: {
if (IsNullStrokeFill(true))
{
break;
}
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
cb.Rectangle(l, b, r - l, t - b);
StrokeAndFill();
break;
}
case META_ROUNDRECT: {
if (IsNullStrokeFill(true))
{
break;
}
float h = state.TransformY(0) - state.TransformY(@in.ReadShort());
float w = state.TransformX(@in.ReadShort()) - state.TransformX(0);
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
cb.RoundRectangle(l, b, r - l, t - b, (h + w) / 4);
StrokeAndFill();
break;
}
case META_INTERSECTCLIPRECT: {
float b = state.TransformY(@in.ReadShort());
float r = state.TransformX(@in.ReadShort());
float t = state.TransformY(@in.ReadShort());
float l = state.TransformX(@in.ReadShort());
cb.Rectangle(l, b, r - l, t - b);
cb.EoClip();
cb.NewPath();
break;
}
case META_EXTTEXTOUT: {
int y = @in.ReadShort();
int x = @in.ReadShort();
int count = @in.ReadWord();
int flag = @in.ReadWord();
int x1 = 0;
int y1 = 0;
int x2 = 0;
int y2 = 0;
if ((flag & (MetaFont.ETO_CLIPPED | MetaFont.ETO_OPAQUE)) != 0)
{
x1 = @in.ReadShort();
y1 = @in.ReadShort();
x2 = @in.ReadShort();
y2 = @in.ReadShort();
}
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k)
{
byte c = (byte)@in.ReadByte();
if (c == 0)
{
break;
}
text[k] = c;
}
String s;
try {
s = iText.IO.Util.JavaUtil.GetStringForBytes(text, 0, k, "Cp1252");
}
catch (ArgumentException) {
s = iText.IO.Util.JavaUtil.GetStringForBytes(text, 0, k);
}
OutputText(x, y, flag, x1, y1, x2, y2, s);
break;
}
case META_TEXTOUT: {
int count = @in.ReadWord();
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k)
{
byte c = (byte)@in.ReadByte();
if (c == 0)
{
break;
}
text[k] = c;
}
String s;
try {
s = iText.IO.Util.JavaUtil.GetStringForBytes(text, 0, k, "Cp1252");
}
catch (ArgumentException) {
s = iText.IO.Util.JavaUtil.GetStringForBytes(text, 0, k);
}
count = count + 1 & 0xfffe;
@in.Skip(count - k);
int y = @in.ReadShort();
int x = @in.ReadShort();
OutputText(x, y, 0, 0, 0, 0, 0, s);
break;
}
case META_SETBKCOLOR: {
state.SetCurrentBackgroundColor(@in.ReadColor());
break;
}
case META_SETTEXTCOLOR: {
state.SetCurrentTextColor(@in.ReadColor());
break;
}
case META_SETTEXTALIGN: {
state.SetTextAlign(@in.ReadWord());
break;
}
case META_SETBKMODE: {
state.SetBackgroundMode(@in.ReadWord());
break;
}
case META_SETPOLYFILLMODE: {
state.SetPolyFillMode(@in.ReadWord());
break;
}
case META_SETPIXEL: {
Color color = @in.ReadColor();
int y = @in.ReadShort();
int x = @in.ReadShort();
cb.SaveState();
cb.SetFillColor(color);
cb.Rectangle(state.TransformX(x), state.TransformY(y), .2f, .2f);
cb.Fill();
cb.RestoreState();
break;
}
case META_DIBSTRETCHBLT:
case META_STRETCHDIB: {
int rop = @in.ReadInt();
if (function == META_STRETCHDIB)
{
/*int usage = */
@in.ReadWord();
}
int srcHeight = @in.ReadShort();
int srcWidth = @in.ReadShort();
int ySrc = @in.ReadShort();
int xSrc = @in.ReadShort();
float destHeight = state.TransformY(@in.ReadShort()) - state.TransformY(0);
float destWidth = state.TransformX(@in.ReadShort()) - state.TransformX(0);
float yDest = state.TransformY(@in.ReadShort());
float xDest = state.TransformX(@in.ReadShort());
byte[] b = new byte[tsize * 2 - (@in.GetLength() - lenMarker)];
for (int k = 0; k < b.Length; ++k)
{
b[k] = (byte)@in.ReadByte();
}
try {
cb.SaveState();
cb.Rectangle(xDest, yDest, destWidth, destHeight);
cb.Clip();
cb.NewPath();
ImageData bmpImage = ImageDataFactory.CreateBmp(b, true, b.Length);
PdfImageXObject imageXObject = new PdfImageXObject(bmpImage);
float width = destWidth * bmpImage.GetWidth() / srcWidth;
float height = -destHeight *bmpImage.GetHeight() / srcHeight;
float x = xDest - destWidth * xSrc / srcWidth;
float y = yDest + destHeight * ySrc / srcHeight - height;
cb.AddXObject(imageXObject, new Rectangle(x, y, width, height));
cb.RestoreState();
}
catch (Exception) {
}
// empty on purpose
break;
}
}
@in.Skip(tsize * 2 - (@in.GetLength() - lenMarker));
}
state.Cleanup(cb);
}
/// <summary>Select the MetaObject at the specified index and prepare the PdfCanvas.</summary>
/// <param name="index">position of the MetaObject</param>
/// <param name="cb">PdfCanvas to prepare</param>
public virtual void SelectMetaObject(int index, PdfCanvas cb)
{
MetaObject obj = MetaObjects[index];
if (obj == null)
{
return;
}
int style;
switch (obj.GetObjectType())
{
case MetaObject.META_BRUSH: {
currentBrush = (MetaBrush)obj;
style = currentBrush.GetStyle();
if (style == MetaBrush.BS_SOLID)
{
Color color = currentBrush.GetColor();
cb.SetFillColor(color);
}
else
{
if (style == MetaBrush.BS_HATCHED)
{
Color color = currentBackgroundColor;
cb.SetFillColor(color);
}
}
break;
}
case MetaObject.META_PEN: {
currentPen = (MetaPen)obj;
style = currentPen.GetStyle();
if (style != MetaPen.PS_NULL)
{
Color color = currentPen.GetColor();
cb.SetStrokeColor(color);
cb.SetLineWidth(Math.Abs(currentPen.GetPenWidth() * scalingX / extentWx));
switch (style)
{
case MetaPen.PS_DASH: {
cb.SetLineDash(18, 6, 0);
break;
}
case MetaPen.PS_DASHDOT: {
cb.WriteLiteral("[9 6 3 6]0 d\n");
break;
}
case MetaPen.PS_DASHDOTDOT: {
cb.WriteLiteral("[9 3 3 3 3 3]0 d\n");
break;
}
case MetaPen.PS_DOT: {
cb.SetLineDash(3, 0);
break;
}
default: {
cb.SetLineDash(0);
break;
}
}
}
break;
}
case MetaObject.META_FONT: {
currentFont = (MetaFont)obj;
break;
}
}
}
