/** Creates new MetaState */
public MetaState()
{
savedStates = new Stack();
MetaObjects = new ArrayList();
currentPoint = new Point(0, 0);
currentPen = new MetaPen();
currentBrush = new MetaBrush();
}
public bool isNullStrokeFill(bool isRectangle)
{
MetaPen pen = state.CurrentPen;
MetaBrush brush = state.CurrentBrush;
bool noPen = (pen.Style == MetaPen.PS_NULL);
int style = brush.Style;
bool isBrush = (style == MetaBrush.BS_SOLID || (style == MetaBrush.BS_HATCHED && state.BackgroundMode == MetaState.OPAQUE));
bool result = noPen && !isBrush;
if (!noPen)
{
if (isRectangle)
{
state.LineJoinRectangle = cb;
}
else
{
state.LineJoinPolygon = cb;
}
}
return(result);
}
public void strokeAndFill()
{
MetaPen pen = state.CurrentPen;
MetaBrush brush = state.CurrentBrush;
int penStyle = pen.Style;
int brushStyle = brush.Style;
if (penStyle == MetaPen.PS_NULL)
{
cb.closePath();
if (state.PolyFillMode == MetaState.ALTERNATE)
{
cb.eoFill();
}
else
{
cb.fill();
}
}
else
{
bool isBrush = (brushStyle == MetaBrush.BS_SOLID || (brushStyle == MetaBrush.BS_HATCHED && state.BackgroundMode == MetaState.OPAQUE));
if (isBrush)
{
if (state.PolyFillMode == MetaState.ALTERNATE)
{
cb.closePathEoFillStroke();
}
else
{
cb.closePathFillStroke();
}
}
else
{
cb.closePathStroke();
}
}
}
public void selectMetaObject(int index, PdfContentByte cb)
{
MetaObject obj = (MetaObject)MetaObjects[index];
if (obj == null)
{
return;
}
int style;
switch (obj.Type)
{
case MetaObject.META_BRUSH:
currentBrush = (MetaBrush)obj;
style = currentBrush.Style;
if (style == MetaBrush.BS_SOLID)
{
Color color = currentBrush.Color;
cb.ColorFill = color;
}
else if (style == MetaBrush.BS_HATCHED)
{
Color color = currentBackgroundColor;
cb.ColorFill = color;
}
break;
case MetaObject.META_PEN: {
currentPen = (MetaPen)obj;
style = currentPen.Style;
if (style != MetaPen.PS_NULL)
{
Color color = currentPen.Color;
cb.ColorStroke = color;
cb.LineWidth = Math.Abs((float)currentPen.PenWidth * scalingX / extentWx);
switch (style)
{
case MetaPen.PS_DASH:
cb.setLineDash(18, 6, 0);
break;
case MetaPen.PS_DASHDOT:
cb.setLiteral("[9 6 3 6]0 d\n");
break;
case MetaPen.PS_DASHDOTDOT:
cb.setLiteral("[9 3 3 3 3 3]0 d\n");
break;
case MetaPen.PS_DOT:
cb.setLineDash(3, 0);
break;
default:
cb.LineDash = 0;
break;
}
}
break;
}
case MetaObject.META_FONT: {
currentFont = (MetaFont)obj;
break;
}
}
}
public void readAll()
{
if (meta.readInt() != unchecked ((int)0x9AC6CDD7))
{
throw new DocumentException("Not a placeable windows metafile");
}
meta.readWord();
left = meta.readShort();
top = meta.readShort();
right = meta.readShort();
bottom = meta.readShort();
inch = meta.readWord();
state.ScalingX = (float)(right - left) / (float)inch * 72f;
state.ScalingY = (float)(bottom - top) / (float)inch * 72f;
state.OffsetWx = left;
state.OffsetWy = top;
state.ExtentWx = right - left;
state.ExtentWy = bottom - top;
meta.readInt();
meta.readWord();
meta.skip(18);
int tsize;
int function;
cb.LineCap = 1;
cb.LineJoin = 1;
for (;;)
{
int lenMarker = meta.Length;
tsize = meta.readInt();
if (tsize < 3)
{
break;
}
function = meta.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(meta);
state.addMetaObject(pen);
break;
}
case META_CREATEBRUSHINDIRECT:
{
MetaBrush brush = new MetaBrush();
brush.init(meta);
state.addMetaObject(brush);
break;
}
case META_CREATEFONTINDIRECT:
{
MetaFont font = new MetaFont();
font.init(meta);
state.addMetaObject(font);
break;
}
case META_SELECTOBJECT:
{
int idx = meta.readWord();
state.selectMetaObject(idx, cb);
break;
}
case META_DELETEOBJECT:
{
int idx = meta.readWord();
state.deleteMetaObject(idx);
break;
}
case META_SAVEDC:
state.saveState(cb);
break;
case META_RESTOREDC:
{
int idx = meta.readShort();
state.restoreState(idx, cb);
break;
}
case META_SETWINDOWORG:
state.OffsetWy = meta.readShort();
state.OffsetWx = meta.readShort();
break;
case META_SETWINDOWEXT:
state.ExtentWy = meta.readShort();
state.ExtentWx = meta.readShort();
break;
case META_MOVETO:
{
int y = meta.readShort();
Point p = new Point(meta.readShort(), y);
state.CurrentPoint = p;
break;
}
case META_LINETO:
{
int y = meta.readShort();
int x = meta.readShort();
Point p = state.CurrentPoint;
cb.moveTo(state.transformX(p.X), state.transformY(p.Y));
cb.lineTo(state.transformX(x), state.transformY(y));
cb.stroke();
state.CurrentPoint = new Point(x, y);
break;
}
case META_POLYLINE:
{
state.LineJoinPolygon = cb;
int len = meta.readWord();
int x = meta.readShort();
int y = meta.readShort();
cb.moveTo(state.transformX(x), state.transformY(y));
for (int k = 1; k < len; ++k)
{
x = meta.readShort();
y = meta.readShort();
cb.lineTo(state.transformX(x), state.transformY(y));
}
cb.stroke();
break;
}
case META_POLYGON:
{
if (isNullStrokeFill(false))
{
break;
}
int len = meta.readWord();
int sx = meta.readShort();
int sy = meta.readShort();
cb.moveTo(state.transformX(sx), state.transformY(sy));
for (int k = 1; k < len; ++k)
{
int x = meta.readShort();
int y = meta.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 = meta.readWord();
int[] lens = new int[numPoly];
for (int k = 0; k < lens.Length; ++k)
{
lens[k] = meta.readWord();
}
for (int j = 0; j < lens.Length; ++j)
{
int len = lens[j];
int sx = meta.readShort();
int sy = meta.readShort();
cb.moveTo(state.transformX(sx), state.transformY(sy));
for (int k = 1; k < len; ++k)
{
int x = meta.readShort();
int y = meta.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.LineNeutral))
{
break;
}
int b = meta.readShort();
int r = meta.readShort();
int t = meta.readShort();
int l = meta.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.LineNeutral))
{
break;
}
float yend = state.transformY(meta.readShort());
float xend = state.transformX(meta.readShort());
float ystart = state.transformY(meta.readShort());
float xstart = state.transformX(meta.readShort());
float b = state.transformY(meta.readShort());
float r = state.transformX(meta.readShort());
float t = state.transformY(meta.readShort());
float l = state.transformX(meta.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.LineNeutral))
{
break;
}
float yend = state.transformY(meta.readShort());
float xend = state.transformX(meta.readShort());
float ystart = state.transformY(meta.readShort());
float xstart = state.transformX(meta.readShort());
float b = state.transformY(meta.readShort());
float r = state.transformX(meta.readShort());
float t = state.transformY(meta.readShort());
float l = state.transformX(meta.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;
}
ArrayList ar = PdfContentByte.bezierArc(l, b, r, t, arc1, arc2);
if (ar.Count == 0)
{
break;
}
float[] pt = (float [])ar[0];
cb.moveTo(cx, cy);
cb.lineTo(pt[0], pt[1]);
for (int k = 0; k < ar.Count; ++k)
{
pt = (float [])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.LineNeutral))
{
break;
}
float yend = state.transformY(meta.readShort());
float xend = state.transformX(meta.readShort());
float ystart = state.transformY(meta.readShort());
float xstart = state.transformX(meta.readShort());
float b = state.transformY(meta.readShort());
float r = state.transformX(meta.readShort());
float t = state.transformY(meta.readShort());
float l = state.transformX(meta.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;
}
ArrayList ar = PdfContentByte.bezierArc(l, b, r, t, arc1, arc2);
if (ar.Count == 0)
{
break;
}
float[] pt = (float [])ar[0];
cx = pt[0];
cy = pt[1];
cb.moveTo(cx, cy);
for (int k = 0; k < ar.Count; ++k)
{
pt = (float [])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(meta.readShort());
float r = state.transformX(meta.readShort());
float t = state.transformY(meta.readShort());
float l = state.transformX(meta.readShort());
cb.rectangle(l, b, r - l, t - b);
strokeAndFill();
break;
}
case META_INTERSECTCLIPRECT:
{
float b = state.transformY(meta.readShort());
float r = state.transformX(meta.readShort());
float t = state.transformY(meta.readShort());
float l = state.transformX(meta.readShort());
cb.rectangle(l, b, r - l, t - b);
cb.eoClip();
cb.newPath();
break;
}
case META_EXTTEXTOUT:
{
int y = meta.readShort();
int x = meta.readShort();
int count = meta.readWord();
int flag = meta.readWord();
int x1 = 0;
int y1 = 0;
int x2 = 0;
int y2 = 0;
if ((flag & (MetaFont.ETO_CLIPPED | MetaFont.ETO_OPAQUE)) != 0)
{
x1 = meta.readShort();
y1 = meta.readShort();
x2 = meta.readShort();
y2 = meta.readShort();
}
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k)
{
byte c = (byte)meta.readByte();
if (c == 0)
{
break;
}
text[k] = c;
}
string s;
try {
s = System.Text.Encoding.GetEncoding("windows-1252").GetString(text, 0, k);
}
catch (Exception e) {
e.GetType();
s = System.Text.ASCIIEncoding.ASCII.GetString(text, 0, k);
}
outputText(x, y, flag, x1, y1, x2, y2, s);
break;
}
case META_TEXTOUT:
{
int count = meta.readWord();
byte[] text = new byte[count];
int k;
for (k = 0; k < count; ++k)
{
byte c = (byte)meta.readByte();
if (c == 0)
{
break;
}
text[k] = c;
}
string s;
try {
s = System.Text.Encoding.GetEncoding("windows-1252").GetString(text, 0, k);
}
catch (Exception e) {
e.GetType();
s = System.Text.ASCIIEncoding.ASCII.GetString(text, 0, k);
}
count = (count + 1) & 0xfffe;
meta.skip(count - k);
int y = meta.readShort();
int x = meta.readShort();
outputText(x, y, 0, 0, 0, 0, 0, s);
break;
}
case META_SETBKCOLOR:
state.CurrentBackgroundColor = meta.readColor();
break;
case META_SETTEXTCOLOR:
state.CurrentTextColor = meta.readColor();
break;
case META_SETTEXTALIGN:
state.TextAlign = meta.readWord();
break;
case META_SETBKMODE:
state.BackgroundMode = meta.readWord();
break;
case META_SETPOLYFILLMODE:
state.PolyFillMode = meta.readWord();
break;
case META_SETPIXEL:
{
Color color = meta.readColor();
int y = meta.readShort();
int x = meta.readShort();
cb.saveState();
cb.ColorFill = color;
cb.rectangle(state.transformX(x), state.transformY(y), .2f, .2f);
cb.fill();
cb.restoreState();
break;
}
}
meta.skip((tsize * 2) - (meta.Length - lenMarker));
}
}
