mirror of
https://github.com/michaelrsweet/pdfio.git
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165 lines
8.3 KiB
C
165 lines
8.3 KiB
C
//
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// Public content header file for PDFio.
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//
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// Copyright © 2021 by Michael R Sweet.
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//
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// Licensed under Apache License v2.0. See the file "LICENSE" for more
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// information.
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//
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#ifndef PDFIO_CONTENT_H
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# define PDFIO_CONTENT_H
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//
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// Include necessary headers...
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//
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# include "pdfio.h"
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//
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// C++ magic...
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//
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# ifdef __cplusplus
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extern "C" {
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# endif // __cplusplus
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//
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// Types and constants...
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//
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typedef enum pdfio_linecap_e // Line capping modes
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{
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PDFIO_LINECAP_BUTT, // Butt ends
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PDFIO_LINECAP_ROUND, // Round ends
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PDFIO_LINECAP_SQUARE // Square ends
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} pdfio_linecap_t;
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typedef enum pdfio_linejoin_e // Line joining modes
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{
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PDFIO_LINEJOIN_MITER, // Miter joint
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PDFIO_LINEJOIN_ROUND, // Round joint
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PDFIO_LINEJOIN_BEVEL // Bevel joint
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} pdfio_linejoin_t;
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typedef double pdfio_matrix_t[3][2]; // Transform matrix
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typedef enum pdfio_textrendering_e // Text rendering modes
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{
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PDFIO_TEXTRENDERING_FILL, // Fill text
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PDFIO_TEXTRENDERING_STROKE, // Stroke text
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PDFIO_TEXTRENDERING_FILL_AND_STROKE, // Fill then stroke text
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PDFIO_TEXTRENDERING_INVISIBLE, // Don't fill or stroke (invisible)
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PDFIO_TEXTRENDERING_FILL_PATH, // Fill text and add to path
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PDFIO_TEXTRENDERING_STROKE_PATH, // Stroke text and add to path
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PDFIO_TEXTRENDERING_FILL_AND_STROKE_PATH,
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// Fill then stroke text and add to path
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PDFIO_TEXTRENDERING_TEXT_PATH // Add text to path (invisible)
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} pdfio_textrendering_t;
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extern const double pdfioAdobeRGBGamma PDFIO_PUBLIC;
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// AdobeRGB gamma
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extern const double pdfioAdobeRGBMatrix[3][3] PDFIO_PUBLIC;
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// AdobeRGB matrix
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extern const double pdfioAdobeRGBWhitePoint[3] PDFIO_PUBLIC;
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// AdobeRGB white point
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extern const double pdfioDisplayP3Gamma PDFIO_PUBLIC;
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// Display P3 gamma
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extern const double pdfioDisplayP3Matrix[3][3] PDFIO_PUBLIC;
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// Display P3 matrix
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extern const double pdfioDisplayP3WhitePoint[3] PDFIO_PUBLIC;
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// Display P3 white point
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extern const double pdfioSRGBGamma PDFIO_PUBLIC;
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// sRGB gamma
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extern const double pdfioSRGBMatrix[3][3] PDFIO_PUBLIC;
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// sRGB matrix
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extern const double pdfioSRGBWhitePoint[3] PDFIO_PUBLIC;
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// sRGB white point
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//
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// Functions...
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//
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// PDF content drawing functions...
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extern bool pdfioContentClip(pdfio_stream_t *st, bool even_odd) PDFIO_PUBLIC;
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extern bool pdfioContentDrawImage(pdfio_stream_t *st, const char *name, double x, double y, double w, double h) PDFIO_PUBLIC;
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extern bool pdfioContentFill(pdfio_stream_t *st, bool even_odd) PDFIO_PUBLIC;
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extern bool pdfioContentFillAndStroke(pdfio_stream_t *st, bool even_odd) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixConcat(pdfio_stream_t *st, pdfio_matrix_t m) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixRotate(pdfio_stream_t *st, double degrees) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixScale(pdfio_stream_t *st, double sx, double sy) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixTranslate(pdfio_stream_t *st, double tx, double ty) PDFIO_PUBLIC;
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extern bool pdfioContentPathClose(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentPathCurve(pdfio_stream_t *st, double x1, double y1, double x2, double y2, double x3, double y3) PDFIO_PUBLIC;
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extern bool pdfioContentPathCurve13(pdfio_stream_t *st, double x1, double y1, double x3, double y3) PDFIO_PUBLIC;
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extern bool pdfioContentPathCurve23(pdfio_stream_t *st, double x2, double y2, double x3, double y3) PDFIO_PUBLIC;
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extern bool pdfioContentPathLineTo(pdfio_stream_t *st, double x, double y) PDFIO_PUBLIC;
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extern bool pdfioContentPathMoveTo(pdfio_stream_t *st, double x, double y) PDFIO_PUBLIC;
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extern bool pdfioContentPathRect(pdfio_stream_t *st, double x, double y, double width, double height) PDFIO_PUBLIC;
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extern bool pdfioContentRestore(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentSave(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentSetDashPattern(pdfio_stream_t *st, int phase, int on, int off) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceCMYK(pdfio_stream_t *st, double c, double m, double y, double k) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceGray(pdfio_stream_t *st, double g) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceRGB(pdfio_stream_t *st, double r, double g, double b) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorGray(pdfio_stream_t *st, double g) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorRGB(pdfio_stream_t *st, double r, double g, double b) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorSpace(pdfio_stream_t *st, const char *name) PDFIO_PUBLIC;
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extern bool pdfioContentSetFlatness(pdfio_stream_t *st, double f) PDFIO_PUBLIC;
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extern bool pdfioContentSetLineCap(pdfio_stream_t *st, pdfio_linecap_t lc) PDFIO_PUBLIC;
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extern bool pdfioContentSetLineJoin(pdfio_stream_t *st, pdfio_linejoin_t lj) PDFIO_PUBLIC;
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extern bool pdfioContentSetLineWidth(pdfio_stream_t *st, double width) PDFIO_PUBLIC;
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extern bool pdfioContentSetMiterLimit(pdfio_stream_t *st, double limit) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceCMYK(pdfio_stream_t *st, double c, double m, double y, double k) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceGray(pdfio_stream_t *st, double g) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceRGB(pdfio_stream_t *st, double r, double g, double b) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorGray(pdfio_stream_t *st, double g) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorRGB(pdfio_stream_t *st, double r, double g, double b) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorSpace(pdfio_stream_t *st, const char *name) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextCharacterSpacing(pdfio_stream_t *st, double spacing) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextFont(pdfio_stream_t *st, const char *name, double size) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextLeading(pdfio_stream_t *st, double leading) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextMatrix(pdfio_stream_t *st, pdfio_matrix_t m) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextRenderingMode(pdfio_stream_t *st, pdfio_textrendering_t mode) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextRise(pdfio_stream_t *st, double rise) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextWordSpacing(pdfio_stream_t *st, double spacing) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextXScaling(pdfio_stream_t *st, double percent) PDFIO_PUBLIC;
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extern bool pdfioContentStroke(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentTextBegin(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentTextEnd(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentTextMoveLine(pdfio_stream_t *st, double tx, double ty) PDFIO_PUBLIC;
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extern bool pdfioContentTextMoveTo(pdfio_stream_t *st, double tx, double ty) PDFIO_PUBLIC;
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extern bool pdfioContentTextNextLine(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentTextShow(pdfio_stream_t *st, const char *s) PDFIO_PUBLIC;
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extern bool pdfioContentTextShowf(pdfio_stream_t *st, const char *format, ...) PDFIO_PUBLIC PDFIO_FORMAT(2,3);
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extern bool pdfioContentTextShowJustified(pdfio_stream_t *st, size_t num_fragments, const double *offsets, const char * const *fragments) PDFIO_PUBLIC;
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// Resource helpers...
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extern pdfio_obj_t *pdfioFileCreateBaseFontObject(pdfio_file_t *pdf, const char *name) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateFontObject(pdfio_file_t *pdf, const char *filename, bool unicode) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateICCProfileObject(pdfio_file_t *pdf, const char *filename) PDFIO_PUBLIC;
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extern pdfio_obj_t *pdfioFileCreateImageObject(pdfio_file_t *pdf, const char *filename, bool interpolate) PDFIO_PUBLIC;
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// Image object helpers...
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extern double pdfioImageGetHeight(pdfio_obj_t *obj) PDFIO_PUBLIC;
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extern double pdfioImageGetWidth(pdfio_obj_t *obj) PDFIO_PUBLIC;
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// Page dictionary helpers...
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extern bool pdfioPageDictAddICCColorSpace(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;
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extern bool pdfioPageDictAddCalibratedColorSpace(pdfio_dict_t *dict, const char *name, size_t num_colors, double gamma, const double matrix[3][3], const double white_point[3]) PDFIO_PUBLIC;
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extern bool pdfioPageDictAddFont(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;
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extern bool pdfioPageDictAddImage(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj) PDFIO_PUBLIC;
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//
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// C++ magic...
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//
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# ifdef __cplusplus
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}
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# endif // __cplusplus
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#endif // !PDFIO_CONTENT_H
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