debugger/SkObjectParser.cpp - platform/external/skia - Gitiles


 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */

 #include "SkObjectParser.h"
 #include "SkData.h"
 #include "SkFontDescriptor.h"
 #include "SkRRect.h"
 #include "SkShader.h"
 #include "SkStream.h"
 #include "SkStringUtils.h"
 #include "SkTypeface.h"
 #include "SkUtils.h"

 /* TODO(chudy): Replace all std::strings with char */

 SkString* SkObjectParser::BitmapToString(const SkBitmap& bitmap) {
     SkString* mBitmap = new SkString("SkBitmap: ");
     mBitmap->append("W: ");
     mBitmap->appendS32(bitmap.width());
     mBitmap->append(" H: ");
     mBitmap->appendS32(bitmap.height());

     const char* gConfigStrings[] = {
         "None", "A1", "A8", "Index8", "RGB565", "ARGB4444", "ARGB8888", "RLE8"
     };
     SkASSERT(SkBitmap::kConfigCount == 8);

     mBitmap->append(" Config: ");
     mBitmap->append(gConfigStrings[bitmap.getConfig()]);

     if (bitmap.isOpaque()) {
         mBitmap->append(" opaque");
     } else {
         mBitmap->append(" not-opaque");
     }

     if (bitmap.isImmutable()) {
         mBitmap->append(" immutable");
     } else {
         mBitmap->append(" not-immutable");
     }

     if (bitmap.isVolatile()) {
         mBitmap->append(" volatile");
     } else {
         mBitmap->append(" not-volatile");
     }

     mBitmap->append(" genID: ");
     mBitmap->appendS32(bitmap.getGenerationID());

     return mBitmap;
 }

 SkString* SkObjectParser::BoolToString(bool doAA) {
     SkString* mBool = new SkString("Bool doAA: ");
     if (doAA) {
         mBool->append("True");
     } else {
         mBool->append("False");
     }
     return mBool;
 }

 SkString* SkObjectParser::CustomTextToString(const char* text) {
     SkString* mText = new SkString(text);
     return mText;
 }

 SkString* SkObjectParser::IntToString(int x, const char* text) {
     SkString* mInt = new SkString(text);
     mInt->append(" ");
     mInt->appendScalar(SkIntToScalar(x));
     return mInt;
 }

 SkString* SkObjectParser::IRectToString(const SkIRect& rect) {
     SkString* mRect = new SkString("SkIRect: ");
     mRect->append("L: ");
     mRect->appendS32(rect.left());
     mRect->append(", T: ");
     mRect->appendS32(rect.top());
     mRect->append(", R: ");
     mRect->appendS32(rect.right());
     mRect->append(", B: ");
     mRect->appendS32(rect.bottom());
     return mRect;
 }

 SkString* SkObjectParser::MatrixToString(const SkMatrix& matrix) {
     SkString* str = new SkString("SkMatrix: ");
 #ifdef SK_DEVELOPER
     matrix.toString(str);
 #endif
     return str;
 }

 SkString* SkObjectParser::PaintToString(const SkPaint& paint) {
     SkString* str = new SkString;
 #ifdef SK_DEVELOPER
     paint.toString(str);
 #endif
     return str;
 }

 SkString* SkObjectParser::PathToString(const SkPath& path) {
     SkString* mPath = new SkString("Path (");

     static const char* gFillStrings[] = {
         "Winding", "EvenOdd", "InverseWinding", "InverseEvenOdd"
     };

     mPath->append(gFillStrings[path.getFillType()]);
     mPath->append(", ");

     static const char* gConvexityStrings[] = {
         "Unknown", "Convex", "Concave"
     };
     SkASSERT(SkPath::kConcave_Convexity == 2);

     mPath->append(gConvexityStrings[path.getConvexity()]);
     mPath->append(", ");

     if (path.isRect(NULL)) {
         mPath->append("isRect, ");
     } else {
         mPath->append("isNotRect, ");
     }

     mPath->appendS32(path.countVerbs());
     mPath->append("V, ");
     mPath->appendS32(path.countPoints());
     mPath->append("P): ");

     static const char* gVerbStrings[] = {
         "Move", "Line", "Quad", "Cubic", "Close", "Done"
     };
     static const int gPtsPerVerb[] = { 1, 1, 2, 3, 0, 0 };
     static const int gPtOffsetPerVerb[] = { 0, 1, 1, 1, 0, 0 };
     SkASSERT(SkPath::kDone_Verb == 5);

     SkPath::Iter iter(const_cast<SkPath&>(path), false);
     SkPath::Verb verb;
     SkPoint points[4];

     for(verb = iter.next(points, false);
         verb != SkPath::kDone_Verb;
         verb = iter.next(points, false)) {

         mPath->append(gVerbStrings[verb]);
         mPath->append(" ");

         for (int i = 0; i < gPtsPerVerb[verb]; ++i) {
             mPath->append("(");
             mPath->appendScalar(points[gPtOffsetPerVerb[verb]+i].fX);
             mPath->append(", ");
             mPath->appendScalar(points[gPtOffsetPerVerb[verb]+i].fY);
             mPath->append(") ");
         }
     }

     SkString* boundStr = SkObjectParser::RectToString(path.getBounds(), "    Bound: ");

     if (NULL != boundStr) {
         mPath->append(*boundStr);
         SkDELETE(boundStr);
     }

     return mPath;
 }

 SkString* SkObjectParser::PointsToString(const SkPoint pts[], size_t count) {
     SkString* mPoints = new SkString("SkPoints pts[]: ");
     for (unsigned int i = 0; i < count; i++) {
         mPoints->append("(");
         mPoints->appendScalar(pts[i].fX);
         mPoints->append(",");
         mPoints->appendScalar(pts[i].fY);
         mPoints->append(")");
     }
     return mPoints;
 }

 SkString* SkObjectParser::PointModeToString(SkCanvas::PointMode mode) {
     SkString* mMode = new SkString("SkCanvas::PointMode: ");
     if (mode == SkCanvas::kPoints_PointMode) {
         mMode->append("kPoints_PointMode");
     } else if (mode == SkCanvas::kLines_PointMode) {
         mMode->append("kLines_Mode");
     } else if (mode == SkCanvas::kPolygon_PointMode) {
         mMode->append("kPolygon_PointMode");
     }
     return mMode;
 }

 SkString* SkObjectParser::RectToString(const SkRect& rect, const char* title) {

     SkString* mRect = new SkString;

     if (NULL == title) {
         mRect->append("SkRect: ");
     } else {
         mRect->append(title);
     }
     mRect->append("(");
     mRect->appendScalar(rect.left());
     mRect->append(", ");
     mRect->appendScalar(rect.top());
     mRect->append(", ");
     mRect->appendScalar(rect.right());
     mRect->append(", ");
     mRect->appendScalar(rect.bottom());
     mRect->append(")");
     return mRect;
 }

 SkString* SkObjectParser::RRectToString(const SkRRect& rrect, const char* title) {

     SkString* mRRect = new SkString;

     if (NULL == title) {
         mRRect->append("SkRRect (");
         if (rrect.isEmpty()) {
             mRRect->append("empty");
         } else if (rrect.isRect()) {
             mRRect->append("rect");
         } else if (rrect.isOval()) {
             mRRect->append("oval");
         } else if (rrect.isSimple()) {
             mRRect->append("simple");
         } else {
             SkASSERT(rrect.isComplex());
             mRRect->append("complex");
         }
         mRRect->append("): ");
     } else {
         mRRect->append(title);
     }
     mRRect->append("(");
     mRRect->appendScalar(rrect.rect().left());
     mRRect->append(", ");
     mRRect->appendScalar(rrect.rect().top());
     mRRect->append(", ");
     mRRect->appendScalar(rrect.rect().right());
     mRRect->append(", ");
     mRRect->appendScalar(rrect.rect().bottom());
     mRRect->append(") radii: (");
     for (int i = 0; i < 4; ++i) {
         const SkVector& radii = rrect.radii((SkRRect::Corner) i);
         mRRect->appendScalar(radii.fX);
         mRRect->append(", ");
         mRRect->appendScalar(radii.fY);
         if (i < 3) {
             mRRect->append(", ");
         }
     }
     mRRect->append(")");
     return mRRect;
 }

 SkString* SkObjectParser::RegionOpToString(SkRegion::Op op) {
     SkString* mOp = new SkString("SkRegion::Op: ");
     if (op == SkRegion::kDifference_Op) {
         mOp->append("kDifference_Op");
     } else if (op == SkRegion::kIntersect_Op) {
         mOp->append("kIntersect_Op");
     } else if (op == SkRegion::kUnion_Op) {
         mOp->append("kUnion_Op");
     } else if (op == SkRegion::kXOR_Op) {
         mOp->append("kXOR_Op");
     } else if (op == SkRegion::kReverseDifference_Op) {
         mOp->append("kReverseDifference_Op");
     } else if (op == SkRegion::kReplace_Op) {
         mOp->append("kReplace_Op");
     } else {
         mOp->append("Unknown Type");
     }
     return mOp;
 }

 SkString* SkObjectParser::RegionToString(const SkRegion& region) {
     SkString* mRegion = new SkString("SkRegion: Data unavailable.");
     return mRegion;
 }

 SkString* SkObjectParser::SaveFlagsToString(SkCanvas::SaveFlags flags) {
     SkString* mFlags = new SkString("SkCanvas::SaveFlags: ");
     if(flags == SkCanvas::kMatrixClip_SaveFlag) {
         mFlags->append("kMatrixClip_SaveFlag");
     } else if (flags == SkCanvas::kClip_SaveFlag) {
         mFlags->append("kClip_SaveFlag");
     } else if (flags == SkCanvas::kHasAlphaLayer_SaveFlag) {
         mFlags->append("kHasAlphaLayer_SaveFlag");
     } else if (flags == SkCanvas::kFullColorLayer_SaveFlag) {
         mFlags->append("kFullColorLayer_SaveFlag");
     } else if (flags == SkCanvas::kClipToLayer_SaveFlag) {
         mFlags->append("kClipToLayer_SaveFlag");
     } else if (flags == SkCanvas::kMatrixClip_SaveFlag) {
         mFlags->append("kMatrixClip_SaveFlag");
     } else if (flags == SkCanvas::kARGB_NoClipLayer_SaveFlag) {
         mFlags->append("kARGB_NoClipLayer_SaveFlag");
     } else if (flags == SkCanvas::kARGB_ClipLayer_SaveFlag) {
         mFlags->append("kARGB_ClipLayer_SaveFlag");
     } else {
         mFlags->append("Data Unavailable");
     }
     return mFlags;
 }

 SkString* SkObjectParser::ScalarToString(SkScalar x, const char* text) {
     SkString* mScalar = new SkString(text);
     mScalar->append(" ");
     mScalar->appendScalar(x);
     return mScalar;
 }

 SkString* SkObjectParser::TextToString(const void* text, size_t byteLength,
                                        SkPaint::TextEncoding encoding) {

     SkString* decodedText = new SkString();
     switch (encoding) {
         case SkPaint::kUTF8_TextEncoding: {
             decodedText->append("UTF-8: ");
             decodedText->append((const char*)text, byteLength);
             break;
         }
         case SkPaint::kUTF16_TextEncoding: {
             decodedText->append("UTF-16: ");
             size_t sizeNeeded = SkUTF16_ToUTF8((uint16_t*)text, byteLength / 2, NULL);
             char* utf8 = new char[sizeNeeded];
             SkUTF16_ToUTF8((uint16_t*)text, byteLength / 2, utf8);
             decodedText->append(utf8, sizeNeeded);
             delete utf8;
             break;
         }
         case SkPaint::kUTF32_TextEncoding: {
             decodedText->append("UTF-32: ");
             const SkUnichar* begin = (const SkUnichar*)text;
             const SkUnichar* end = (const SkUnichar*)((const char*)text + byteLength);
             for (const SkUnichar* unichar = begin; unichar < end; ++unichar) {
                 decodedText->appendUnichar(*unichar);
             }
             break;
         }
         case SkPaint::kGlyphID_TextEncoding: {
             decodedText->append("GlyphID: ");
             const uint16_t* begin = (const uint16_t*)text;
             const uint16_t* end = (const uint16_t*)((const char*)text + byteLength);
             for (const uint16_t* glyph = begin; glyph < end; ++glyph) {
                 decodedText->append("0x");
                 decodedText->appendHex(*glyph);
                 decodedText->append(" ");
             }
             break;
         }
         default:
             decodedText->append("Unknown text encoding.");
             break;
     }

     return decodedText;
 }

	/*
	* Copyright 2012 Google Inc.
	*
	* Use of this source code is governed by a BSD-style license that can be
	* found in the LICENSE file.
	*/

	#include "SkObjectParser.h"
	#include "SkData.h"
	#include "SkFontDescriptor.h"
	#include "SkRRect.h"
	#include "SkShader.h"
	#include "SkStream.h"
	#include "SkStringUtils.h"
	#include "SkTypeface.h"
	#include "SkUtils.h"

	/* TODO(chudy): Replace all std::strings with char */

	SkString* SkObjectParser::BitmapToString(const SkBitmap& bitmap) {
	SkString* mBitmap = new SkString("SkBitmap: ");
	mBitmap->append("W: ");
	mBitmap->appendS32(bitmap.width());
	mBitmap->append(" H: ");
	mBitmap->appendS32(bitmap.height());

	const char* gConfigStrings[] = {
	"None", "A1", "A8", "Index8", "RGB565", "ARGB4444", "ARGB8888", "RLE8"
	};
	SkASSERT(SkBitmap::kConfigCount == 8);

	mBitmap->append(" Config: ");
	mBitmap->append(gConfigStrings[bitmap.getConfig()]);

	if (bitmap.isOpaque()) {
	mBitmap->append(" opaque");
	} else {
	mBitmap->append(" not-opaque");
	}

	if (bitmap.isImmutable()) {
	mBitmap->append(" immutable");
	} else {
	mBitmap->append(" not-immutable");
	}

	if (bitmap.isVolatile()) {
	mBitmap->append(" volatile");
	} else {
	mBitmap->append(" not-volatile");
	}

	mBitmap->append(" genID: ");
	mBitmap->appendS32(bitmap.getGenerationID());

	return mBitmap;
	}

	SkString* SkObjectParser::BoolToString(bool doAA) {
	SkString* mBool = new SkString("Bool doAA: ");
	if (doAA) {
	mBool->append("True");
	} else {
	mBool->append("False");
	}
	return mBool;
	}

	SkString* SkObjectParser::CustomTextToString(const char* text) {
	SkString* mText = new SkString(text);
	return mText;
	}

	SkString* SkObjectParser::IntToString(int x, const char* text) {
	SkString* mInt = new SkString(text);
	mInt->append(" ");
	mInt->appendScalar(SkIntToScalar(x));
	return mInt;
	}

	SkString* SkObjectParser::IRectToString(const SkIRect& rect) {
	SkString* mRect = new SkString("SkIRect: ");
	mRect->append("L: ");
	mRect->appendS32(rect.left());
	mRect->append(", T: ");
	mRect->appendS32(rect.top());
	mRect->append(", R: ");
	mRect->appendS32(rect.right());
	mRect->append(", B: ");
	mRect->appendS32(rect.bottom());
	return mRect;
	}

	SkString* SkObjectParser::MatrixToString(const SkMatrix& matrix) {
	SkString* str = new SkString("SkMatrix: ");
	#ifdef SK_DEVELOPER
	matrix.toString(str);
	#endif
	return str;
	}

	SkString* SkObjectParser::PaintToString(const SkPaint& paint) {
	SkString* str = new SkString;
	#ifdef SK_DEVELOPER
	paint.toString(str);
	#endif
	return str;
	}

	SkString* SkObjectParser::PathToString(const SkPath& path) {
	SkString* mPath = new SkString("Path (");

	static const char* gFillStrings[] = {
	"Winding", "EvenOdd", "InverseWinding", "InverseEvenOdd"
	};

	mPath->append(gFillStrings[path.getFillType()]);
	mPath->append(", ");

	static const char* gConvexityStrings[] = {
	"Unknown", "Convex", "Concave"
	};
	SkASSERT(SkPath::kConcave_Convexity == 2);

	mPath->append(gConvexityStrings[path.getConvexity()]);
	mPath->append(", ");

	if (path.isRect(NULL)) {
	mPath->append("isRect, ");
	} else {
	mPath->append("isNotRect, ");
	}

	mPath->appendS32(path.countVerbs());
	mPath->append("V, ");
	mPath->appendS32(path.countPoints());
	mPath->append("P): ");

	static const char* gVerbStrings[] = {
	"Move", "Line", "Quad", "Cubic", "Close", "Done"
	};
	static const int gPtsPerVerb[] = { 1, 1, 2, 3, 0, 0 };
	static const int gPtOffsetPerVerb[] = { 0, 1, 1, 1, 0, 0 };
	SkASSERT(SkPath::kDone_Verb == 5);

	SkPath::Iter iter(const_cast<SkPath&>(path), false);
	SkPath::Verb verb;
	SkPoint points[4];

	for(verb = iter.next(points, false);
	verb != SkPath::kDone_Verb;
	verb = iter.next(points, false)) {

	mPath->append(gVerbStrings[verb]);
	mPath->append(" ");

	for (int i = 0; i < gPtsPerVerb[verb]; ++i) {
	mPath->append("(");
	mPath->appendScalar(points[gPtOffsetPerVerb[verb]+i].fX);
	mPath->append(", ");
	mPath->appendScalar(points[gPtOffsetPerVerb[verb]+i].fY);
	mPath->append(") ");
	}
	}

	SkString* boundStr = SkObjectParser::RectToString(path.getBounds(), " Bound: ");

	if (NULL != boundStr) {
	mPath->append(*boundStr);
	SkDELETE(boundStr);
	}

	return mPath;
	}

	SkString* SkObjectParser::PointsToString(const SkPoint pts[], size_t count) {
	SkString* mPoints = new SkString("SkPoints pts[]: ");
	for (unsigned int i = 0; i < count; i++) {
	mPoints->append("(");
	mPoints->appendScalar(pts[i].fX);
	mPoints->append(",");
	mPoints->appendScalar(pts[i].fY);
	mPoints->append(")");
	}
	return mPoints;
	}

	SkString* SkObjectParser::PointModeToString(SkCanvas::PointMode mode) {
	SkString* mMode = new SkString("SkCanvas::PointMode: ");
	if (mode == SkCanvas::kPoints_PointMode) {
	mMode->append("kPoints_PointMode");
	} else if (mode == SkCanvas::kLines_PointMode) {
	mMode->append("kLines_Mode");
	} else if (mode == SkCanvas::kPolygon_PointMode) {
	mMode->append("kPolygon_PointMode");
	}
	return mMode;
	}

	SkString* SkObjectParser::RectToString(const SkRect& rect, const char* title) {

	SkString* mRect = new SkString;

	if (NULL == title) {
	mRect->append("SkRect: ");
	} else {
	mRect->append(title);
	}
	mRect->append("(");
	mRect->appendScalar(rect.left());
	mRect->append(", ");
	mRect->appendScalar(rect.top());
	mRect->append(", ");
	mRect->appendScalar(rect.right());
	mRect->append(", ");
	mRect->appendScalar(rect.bottom());
	mRect->append(")");
	return mRect;
	}

	SkString* SkObjectParser::RRectToString(const SkRRect& rrect, const char* title) {

	SkString* mRRect = new SkString;

	if (NULL == title) {
	mRRect->append("SkRRect (");
	if (rrect.isEmpty()) {
	mRRect->append("empty");
	} else if (rrect.isRect()) {
	mRRect->append("rect");
	} else if (rrect.isOval()) {
	mRRect->append("oval");
	} else if (rrect.isSimple()) {
	mRRect->append("simple");
	} else {
	SkASSERT(rrect.isComplex());
	mRRect->append("complex");
	}
	mRRect->append("): ");
	} else {
	mRRect->append(title);
	}
	mRRect->append("(");
	mRRect->appendScalar(rrect.rect().left());
	mRRect->append(", ");
	mRRect->appendScalar(rrect.rect().top());
	mRRect->append(", ");
	mRRect->appendScalar(rrect.rect().right());
	mRRect->append(", ");
	mRRect->appendScalar(rrect.rect().bottom());
	mRRect->append(") radii: (");
	for (int i = 0; i < 4; ++i) {
	const SkVector& radii = rrect.radii((SkRRect::Corner) i);
	mRRect->appendScalar(radii.fX);
	mRRect->append(", ");
	mRRect->appendScalar(radii.fY);
	if (i < 3) {
	mRRect->append(", ");
	}
	}
	mRRect->append(")");
	return mRRect;
	}

	SkString* SkObjectParser::RegionOpToString(SkRegion::Op op) {
	SkString* mOp = new SkString("SkRegion::Op: ");
	if (op == SkRegion::kDifference_Op) {
	mOp->append("kDifference_Op");
	} else if (op == SkRegion::kIntersect_Op) {
	mOp->append("kIntersect_Op");
	} else if (op == SkRegion::kUnion_Op) {
	mOp->append("kUnion_Op");
	} else if (op == SkRegion::kXOR_Op) {
	mOp->append("kXOR_Op");
	} else if (op == SkRegion::kReverseDifference_Op) {
	mOp->append("kReverseDifference_Op");
	} else if (op == SkRegion::kReplace_Op) {
	mOp->append("kReplace_Op");
	} else {
	mOp->append("Unknown Type");
	}
	return mOp;
	}

	SkString* SkObjectParser::RegionToString(const SkRegion& region) {
	SkString* mRegion = new SkString("SkRegion: Data unavailable.");
	return mRegion;
	}

	SkString* SkObjectParser::SaveFlagsToString(SkCanvas::SaveFlags flags) {
	SkString* mFlags = new SkString("SkCanvas::SaveFlags: ");
	if(flags == SkCanvas::kMatrixClip_SaveFlag) {
	mFlags->append("kMatrixClip_SaveFlag");
	} else if (flags == SkCanvas::kClip_SaveFlag) {
	mFlags->append("kClip_SaveFlag");
	} else if (flags == SkCanvas::kHasAlphaLayer_SaveFlag) {
	mFlags->append("kHasAlphaLayer_SaveFlag");
	} else if (flags == SkCanvas::kFullColorLayer_SaveFlag) {
	mFlags->append("kFullColorLayer_SaveFlag");
	} else if (flags == SkCanvas::kClipToLayer_SaveFlag) {
	mFlags->append("kClipToLayer_SaveFlag");
	} else if (flags == SkCanvas::kMatrixClip_SaveFlag) {
	mFlags->append("kMatrixClip_SaveFlag");
	} else if (flags == SkCanvas::kARGB_NoClipLayer_SaveFlag) {
	mFlags->append("kARGB_NoClipLayer_SaveFlag");
	} else if (flags == SkCanvas::kARGB_ClipLayer_SaveFlag) {
	mFlags->append("kARGB_ClipLayer_SaveFlag");
	} else {
	mFlags->append("Data Unavailable");
	}
	return mFlags;
	}

	SkString* SkObjectParser::ScalarToString(SkScalar x, const char* text) {
	SkString* mScalar = new SkString(text);
	mScalar->append(" ");
	mScalar->appendScalar(x);
	return mScalar;
	}

	SkString* SkObjectParser::TextToString(const void* text, size_t byteLength,
	SkPaint::TextEncoding encoding) {

	SkString* decodedText = new SkString();
	switch (encoding) {
	case SkPaint::kUTF8_TextEncoding: {
	decodedText->append("UTF-8: ");
	decodedText->append((const char*)text, byteLength);
	break;
	}
	case SkPaint::kUTF16_TextEncoding: {
	decodedText->append("UTF-16: ");
	size_t sizeNeeded = SkUTF16_ToUTF8((uint16_t*)text, byteLength / 2, NULL);
	char* utf8 = new char[sizeNeeded];
	SkUTF16_ToUTF8((uint16_t*)text, byteLength / 2, utf8);
	decodedText->append(utf8, sizeNeeded);
	delete utf8;
	break;
	}
	case SkPaint::kUTF32_TextEncoding: {
	decodedText->append("UTF-32: ");
	const SkUnichar* begin = (const SkUnichar*)text;
	const SkUnichar* end = (const SkUnichar)((const char)text + byteLength);
	for (const SkUnichar* unichar = begin; unichar < end; ++unichar) {
	decodedText->appendUnichar(*unichar);
	}
	break;
	}
	case SkPaint::kGlyphID_TextEncoding: {
	decodedText->append("GlyphID: ");
	const uint16_t* begin = (const uint16_t*)text;
	const uint16_t* end = (const uint16_t)((const char)text + byteLength);
	for (const uint16_t* glyph = begin; glyph < end; ++glyph) {
	decodedText->append("0x");
	decodedText->appendHex(*glyph);
	decodedText->append(" ");
	}
	break;
	}
	default:
	decodedText->append("Unknown text encoding.");
	break;
	}

	return decodedText;
	}