//
// TextOutputDev.h
//
-// Copyright 1997 Derek B. Noonburg
+// Copyright 1997-2002 Glyph & Cog, LLC
//
//========================================================================
class GfxState;
class GString;
+//------------------------------------------------------------------------
+
+typedef void (*TextOutputFunc)(void *stream, char *text, int len);
+
//------------------------------------------------------------------------
// TextString
//------------------------------------------------------------------------
public:
// Constructor.
- TextString(GfxState *state, GBool hexCodes1);
+ TextString(GfxState *state, double fontSize);
// Destructor.
~TextString();
// Add a character to the string.
void addChar(GfxState *state, double x, double y,
- double dx, double dy,
- Guchar c, GBool useASCII7);
-
- // Add a 16-bit character to the string.
- void addChar16(GfxState *state, double x, double y,
- double dx, double dy,
- int c, GfxFontCharSet16 charSet);
+ double dx, double dy, Unicode u);
private:
double xMin, xMax; // bounding box x coordinates
double yMin, yMax; // bounding box y coordinates
int col; // starting column
- GString *text; // the text
+ Unicode *text; // the text
double *xRight; // right-hand x coord of each char
+ int len; // length of text and xRight
+ int size; // size of text and xRight arrays
TextString *yxNext; // next string in y-major order
TextString *xyNext; // next string in x-major order
- GBool hexCodes; // subsetted font with hex char codes
friend class TextPage;
};
public:
// Constructor.
- TextPage(GBool useASCII7, GBool rawOrder);
+ TextPage(GBool rawOrderA);
// Destructor.
~TextPage();
+ // Update the current font.
+ void updateFont(GfxState *state);
+
// Begin a new string.
- void beginString(GfxState *state, GString *s, GBool hex1);
+ void beginString(GfxState *state);
// Add a character to the current string.
void addChar(GfxState *state, double x, double y,
- double dx, double dy, Guchar c);
-
- // Add a 16-bit character to the current string.
- void addChar16(GfxState *state, double x, double y,
- double dx, double dy, int c,
- GfxFontCharSet16 charSet);
+ double dx, double dy, Unicode *u, int uLen);
// End the current string, sorting it into the list of strings.
void endString();
// stops looking at bottom of page; otherwise stops looking at
// <xMax>,<yMax>. If found, sets the text bounding rectange and
// returns true; otherwise returns false.
- GBool findText(char *s, GBool top, GBool bottom,
+ GBool findText(Unicode *s, int len,
+ GBool top, GBool bottom,
double *xMin, double *yMin,
double *xMax, double *yMax);
double xMax, double yMax);
// Dump contents of page to a file.
- void dump(FILE *f);
+ void dump(void *outputStream, TextOutputFunc outputFunc);
// Clear the page.
void clear();
private:
- GBool useASCII7; // use 7-bit ASCII?
GBool rawOrder; // keep strings in content stream order
TextString *curStr; // currently active string
+ double fontSize; // current font size
TextString *yxStrings; // strings in y-major order
TextString *xyStrings; // strings in x-major order
TextString *yxCur1, *yxCur2; // cursors for yxStrings list
+
+ int nest; // current nesting level (for Type 3 fonts)
};
//------------------------------------------------------------------------
class TextOutputDev: public OutputDev {
public:
- // Open a text output file. If <fileName> is NULL, no file is written
- // (this is useful, e.g., for searching text). If <useASCII7> is true,
- // text is converted to 7-bit ASCII; otherwise, text is converted to
- // 8-bit ISO Latin-1. <useASCII7> should also be set for Japanese
- // (EUC-JP) text. If <rawOrder> is true, the text is kept in content
- // stream order.
- TextOutputDev(char *fileName, GBool useASCII7, GBool rawOrder);
+ // Open a text output file. If <fileName> is NULL, no file is
+ // written (this is useful, e.g., for searching text). If
+ // <rawOrder> is true, the text is kept in content stream order.
+ TextOutputDev(char *fileName, GBool rawOrderA, GBool append);
+
+ // Create a TextOutputDev which will write to a generic stream. If
+ // <rawOrder> is true, the text is kept in content stream order.
+ TextOutputDev(TextOutputFunc func, void *stream, GBool rawOrderA);
// Destructor.
virtual ~TextOutputDev();
// Does this device use drawChar() or drawString()?
virtual GBool useDrawChar() { return gTrue; }
+ // Does this device use beginType3Char/endType3Char? Otherwise,
+ // text in Type 3 fonts will be drawn with drawChar/drawString.
+ virtual GBool interpretType3Chars() { return gFalse; }
+
+ // Does this device need non-text content?
+ virtual GBool needNonText() { return gFalse; }
+
//----- initialization and control
// Start a page.
virtual void beginString(GfxState *state, GString *s);
virtual void endString(GfxState *state);
virtual void drawChar(GfxState *state, double x, double y,
- double dx, double dy, Guchar c);
- virtual void drawChar16(GfxState *state, double x, double y,
- double dx, double dy, int c);
+ double dx, double dy,
+ double originX, double originY,
+ CharCode c, Unicode *u, int uLen);
//----- special access
// stops looking at bottom of page; otherwise stops looking at
// <xMax>,<yMax>. If found, sets the text bounding rectange and
// returns true; otherwise returns false.
- GBool findText(char *s, GBool top, GBool bottom,
+ GBool findText(Unicode *s, int len,
+ GBool top, GBool bottom,
double *xMin, double *yMin,
double *xMax, double *yMax);
private:
- FILE *f; // text file
- GBool needClose; // need to close the file?
+ TextOutputFunc outputFunc; // output function
+ void *outputStream; // output stream
+ GBool needClose; // need to close the output file?
+ // (only if outputStream is a FILE*)
TextPage *text; // text for the current page
GBool rawOrder; // keep text in content stream order
- GBool hexCodes; // subsetted font with hex char codes
GBool ok; // set up ok?
};
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