/**
* Creates a PdfPattern object.
* @param painter a pattern painter instance
* @param compressionLevel the compressionLevel for the stream
* @since 2.1.3
*/
internal PdfPattern(PdfPatternPainter painter, int compressionLevel)
: base()
{
PdfNumber one = new PdfNumber(1);
PdfArray matrix = painter.Matrix;
if ( matrix != null ) {
Put(PdfName.MATRIX, matrix);
}
Put(PdfName.TYPE, PdfName.PATTERN);
Put(PdfName.BBOX, new PdfRectangle(painter.BoundingBox));
Put(PdfName.RESOURCES, painter.Resources);
Put(PdfName.TILINGTYPE, one);
Put(PdfName.PATTERNTYPE, one);
if (painter.IsStencil())
Put(PdfName.PAINTTYPE, new PdfNumber(2));
else
Put(PdfName.PAINTTYPE, one);
Put(PdfName.XSTEP, new PdfNumber(painter.XStep));
Put(PdfName.YSTEP, new PdfNumber(painter.YStep));
bytes = painter.ToPdf(null);
Put(PdfName.LENGTH, new PdfNumber(bytes.Length));
FlateCompress(compressionLevel);
}
/**
* Sets a field property. Valid property names are:
* <p>
* <ul>
* <li>flags - a set of flags specifying various characteristics of the field’s widget annotation.
* The value of this entry replaces that of the F entry in the form’s corresponding annotation dictionary.<br>
* <li>setflags - a set of flags to be set (turned on) in the F entry of the form’s corresponding
* widget annotation dictionary. Bits equal to 1 cause the corresponding bits in F to be set to 1.<br>
* <li>clrflags - a set of flags to be cleared (turned off) in the F entry of the form’s corresponding
* widget annotation dictionary. Bits equal to 1 cause the corresponding
* bits in F to be set to 0.<br>
* <li>fflags - a set of flags specifying various characteristics of the field. The value
* of this entry replaces that of the Ff entry in the form’s corresponding field dictionary.<br>
* <li>setfflags - a set of flags to be set (turned on) in the Ff entry of the form’s corresponding
* field dictionary. Bits equal to 1 cause the corresponding bits in Ff to be set to 1.<br>
* <li>clrfflags - a set of flags to be cleared (turned off) in the Ff entry of the form’s corresponding
* field dictionary. Bits equal to 1 cause the corresponding bits in Ff
* to be set to 0.<br>
* </ul>
* @param field the field name
* @param name the property name
* @param value the property value
* @param inst an array of <CODE>int</CODE> indexing into <CODE>AcroField.Item.merged</CODE> elements to process.
* Set to <CODE>null</CODE> to process all
* @return <CODE>true</CODE> if the property exists, <CODE>false</CODE> otherwise
*/
public bool SetFieldProperty(String field, String name, int value, int[] inst)
{
if (writer == null)
throw new Exception("This AcroFields instance is read-only.");
Item item = (Item)fields[field];
if (item == null)
return false;
InstHit hit = new InstHit(inst);
if (Util.EqualsIgnoreCase(name, "flags")) {
PdfNumber num = new PdfNumber(value);
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
item.GetMerged(k).Put(PdfName.F, num);
item.GetWidget(k).Put(PdfName.F, num);
MarkUsed(item.GetWidget(k));
}
}
}
else if (Util.EqualsIgnoreCase(name, "setflags")) {
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
PdfNumber num = item.GetWidget(k).GetAsNumber(PdfName.F);
int val = 0;
if (num != null)
val = num.IntValue;
num = new PdfNumber(val | value);
item.GetMerged(k).Put(PdfName.F, num);
item.GetWidget(k).Put(PdfName.F, num);
MarkUsed(item.GetWidget(k));
}
}
}
else if (Util.EqualsIgnoreCase(name, "clrflags")) {
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
PdfDictionary widget = item.GetWidget( k );
PdfNumber num = widget.GetAsNumber(PdfName.F);
int val = 0;
if (num != null)
val = num.IntValue;
num = new PdfNumber(val & (~value));
item.GetMerged(k).Put(PdfName.F, num);
widget.Put(PdfName.F, num);
MarkUsed(widget);
}
}
}
else if (Util.EqualsIgnoreCase(name, "fflags")) {
PdfNumber num = new PdfNumber(value);
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
item.GetMerged(k).Put(PdfName.FF, num);
item.GetValue(k).Put(PdfName.FF, num);
MarkUsed(item.GetValue(k));
}
}
}
else if (Util.EqualsIgnoreCase(name, "setfflags")) {
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
PdfDictionary valDict = item.GetValue( k );
PdfNumber num = valDict.GetAsNumber( PdfName.FF );
int val = 0;
if (num != null)
val = num.IntValue;
num = new PdfNumber(val | value);
item.GetMerged(k).Put(PdfName.FF, num);
valDict.Put(PdfName.FF, num);
MarkUsed(valDict);
}
}
}
else if (Util.EqualsIgnoreCase(name, "clrfflags")) {
for (int k = 0; k < item.Size; ++k) {
if (hit.IsHit(k)) {
PdfDictionary valDict = item.GetValue( k );
PdfNumber num = valDict.GetAsNumber(PdfName.FF);
int val = 0;
if (num != null)
val = num.IntValue;
num = new PdfNumber(val & (~value));
item.GetMerged(k).Put(PdfName.FF, num);
valDict.Put(PdfName.FF, num);
MarkUsed(valDict);
}
}
}
else
return false;
return true;
}
/** Sets the field value and the display string. The display string
* is used to build the appearance in the cases where the value
* is modified by Acrobat with JavaScript and the algorithm is
* known.
* @param name the fully qualified field name or the partial name in the case of XFA forms
* @param value the field value
* @param display the string that is used for the appearance. If <CODE>null</CODE>
* the <CODE>value</CODE> parameter will be used
* @return <CODE>true</CODE> if the field was found and changed,
* <CODE>false</CODE> otherwise
* @throws IOException on error
* @throws DocumentException on error
*/
public bool SetField(String name, String value, String display)
{
if (writer == null)
throw new DocumentException("This AcroFields instance is read-only.");
if (xfa.XfaPresent) {
name = xfa.FindFieldName(name, this);
if (name == null)
return false;
String shortName = XfaForm.Xml2Som.GetShortName(name);
XmlNode xn = xfa.FindDatasetsNode(shortName);
if (xn == null) {
xn = xfa.DatasetsSom.InsertNode(xfa.DatasetsNode, shortName);
}
xfa.SetNodeText(xn, value);
}
Item item = (Item)fields[name];
if (item == null)
return false;
PdfDictionary merged = item.GetMerged( 0 );
PdfName type = merged.GetAsName(PdfName.FT);
if (PdfName.TX.Equals(type)) {
PdfNumber maxLen = merged.GetAsNumber(PdfName.MAXLEN);
int len = 0;
if (maxLen != null)
len = maxLen.IntValue;
if (len > 0)
value = value.Substring(0, Math.Min(len, value.Length));
}
if (display == null)
display = value;
if (PdfName.TX.Equals(type) || PdfName.CH.Equals(type)) {
PdfString v = new PdfString(value, PdfObject.TEXT_UNICODE);
for (int idx = 0; idx < item.Size; ++idx) {
PdfDictionary valueDic = item.GetValue(idx);
valueDic.Put(PdfName.V, v);
valueDic.Remove(PdfName.I);
MarkUsed(valueDic);
merged = item.GetMerged(idx);
merged.Remove(PdfName.I);
merged.Put(PdfName.V, v);
PdfDictionary widget = item.GetWidget(idx);
if (generateAppearances) {
PdfAppearance app = GetAppearance(merged, display, name);
if (PdfName.CH.Equals(type)) {
PdfNumber n = new PdfNumber(topFirst);
widget.Put(PdfName.TI, n);
merged.Put(PdfName.TI, n);
}
PdfDictionary appDic = widget.GetAsDict(PdfName.AP);
if (appDic == null) {
appDic = new PdfDictionary();
widget.Put(PdfName.AP, appDic);
merged.Put(PdfName.AP, appDic);
}
appDic.Put(PdfName.N, app.IndirectReference);
writer.ReleaseTemplate(app);
}
else {
widget.Remove(PdfName.AP);
merged.Remove(PdfName.AP);
}
MarkUsed(widget);
}
return true;
}
else if (PdfName.BTN.Equals(type)) {
PdfNumber ff = item.GetMerged(0).GetAsNumber(PdfName.FF);
int flags = 0;
if (ff != null)
flags = ff.IntValue;
if ((flags & PdfFormField.FF_PUSHBUTTON) != 0) {
//we'll assume that the value is an image in base64
Image img;
try {
img = Image.GetInstance(Convert.FromBase64String(value));
}
catch {
return false;
}
PushbuttonField pb = GetNewPushbuttonFromField(name);
pb.Image = img;
ReplacePushbuttonField(name, pb.Field);
return true;
}
PdfName v = new PdfName(value);
ArrayList lopt = new ArrayList();
PdfArray opts = item.GetValue(0).GetAsArray(PdfName.OPT);
if (opts != null) {
for (int k = 0; k < opts.Size; ++k) {
PdfString valStr = opts.GetAsString(k);
if (valStr != null)
lopt.Add(valStr.ToUnicodeString());
else
lopt.Add(null);
}
}
int vidx = lopt.IndexOf(value);
PdfName valt = null;
PdfName vt;
if (vidx >= 0) {
vt = valt = new PdfName(vidx.ToString());
}
else
vt = v;
for (int idx = 0; idx < item.Size; ++idx) {
merged = item.GetMerged(idx);
PdfDictionary widget = item.GetWidget(idx);
PdfDictionary valDict = item.GetValue(idx);
MarkUsed(item.GetValue(idx));
if (valt != null) {
PdfString ps = new PdfString(value, PdfObject.TEXT_UNICODE);
valDict.Put(PdfName.V, ps);
merged.Put(PdfName.V, ps);
}
else {
valDict.Put(PdfName.V, v);
merged.Put(PdfName.V, v);
}
MarkUsed(widget);
if (IsInAP(widget, vt)) {
merged.Put(PdfName.AS, vt);
widget.Put(PdfName.AS, vt);
}
else {
merged.Put(PdfName.AS, PdfName.Off_);
widget.Put(PdfName.AS, PdfName.Off_);
}
}
return true;
}
return false;
}
private void AdjustTabOrder(PdfArray annots, PdfIndirectReference ind, PdfNumber nn)
{
int v = nn.IntValue;
ArrayList t = (ArrayList)tabOrder[annots] ;
if (t == null) {
t = new ArrayList();
int size = annots.Size - 1;
for (int k = 0; k < size; ++k) {
t.Add(zero);
}
t.Add(v);
tabOrder[annots] = t;
annots.Add(ind);
}
else {
int size = t.Count - 1;
for (int k = size; k >= 0; --k) {
if ((int)t[k] <= v) {
t.Insert(k + 1, v);
annots.Add(k + 1, ind);
size = -2;
break;
}
}
if (size != -2) {
t.Insert(0, v);
annots.Add(0, ind);
}
}
}
/**
* Adds a <CODE>PdfNumber</CODE> to the <CODE>PdfArray</CODE>.
*
* @param number displacement of the string
*/
public void Add(PdfNumber number)
{
Add((float)number.DoubleValue);
}
