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Michael R Sweet
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TODO.md
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TODO.md
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To-Do List
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==========
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- Graphics mini-library
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- Functions to send PDF drawing commands
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- Resources:
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- Fonts
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- ICC profiles/standard color spaces
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- Images
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- Others?
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- Object/page copy methods
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- Security handlers (RC4 + AES, MD5 + SHA-256) for reading encrypted documents.
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- Signature generation/validation code
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- Documentation
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pdfio-content.h
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pdfio-content.h
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//
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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_ = , //
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PDFIO_LINECAP_ = , //
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PDFIO_LINECAP_ = , //
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PDFIO_LINECAP_ = , //
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PDFIO_LINECAP_ = , //
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PDFIO_LINECAP_ = , //
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PDFIO_LINECAP_ = , //
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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_ = , //
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PDFIO_LINEJOIN_ = , //
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PDFIO_LINEJOIN_ = , //
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PDFIO_LINEJOIN_ = , //
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PDFIO_LINEJOIN_ = , //
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PDFIO_LINEJOIN_ = , //
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} pdfio_linejoin_t;
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typedef float 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 float pdfioAdobeRGBGamma;
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// AdobeRGB gamma
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extern const float pdfioAdobeRGBWhitePoint[];
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// AdobeRGB white point
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extern const float pdfioDisplayP3Gamma;
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// Display P3 gamma
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extern const float pdfioDisplayP3WhitePoint[];
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// Display P3 white point
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extern const float pdfioSRGBGamma; // sRGB gamma
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extern const float pdfioSRGBWhitePoint[];
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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 pdfioContentBeginText(pdfio_stream_t *st) PDFIO_PUBLIC;
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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) PDFIO_PUBLIC;
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extern bool pdfioContentEndText(pdfio_stream_t *st) 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, float degrees) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixScale(pdfio_stream_t *st, float sx, float sy) PDFIO_PUBLIC;
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extern bool pdfioContentMatrixTranslate(pdfio_stream_t *st, float tx, float ty) PDFIO_PUBLIC;
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extern bool pdfioContentMoveTextLine(pdfio_stream_t *st, float tx, float ty) PDFIO_PUBLIC;
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extern bool pdfioContentMoveTextTo(pdfio_stream_t *st, float x, float y, float leading) PDFIO_PUBLIC;
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extern bool pdfioContentNextTextLine(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentPathClose(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentPathCurveTo(pdfio_stream_t *st, float x, float y) PDFIO_PUBLIC;
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extern bool pdfioContentPathEnd(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentPathLineTo(pdfio_stream_t *st, float x, float y) PDFIO_PUBLIC;
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extern bool pdfioContentPathMoveTo(pdfio_stream_t *st, float x, float y) PDFIO_PUBLIC;
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extern bool pdfioContentPathNew(pdfio_stream_t *st) PDFIO_PUBLIC;
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extern bool pdfioContentPathRect(pdfio_stream_t *st, pdfio_rect_t *rect) 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 pdfioContentSetCharacterSpacing(pdfio_stream_t *st, float spacing) PDFIO_PUBLIC;
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extern bool pdfioContentSetDashPattern(pdfio_stream_t *st,) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceCMYK(pdfio_stream_t *st, float c, float m, float y, float k) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceGray(pdfio_stream_t *st, float g) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorDeviceRGB(pdfio_stream_t *st, float r, float g, float b) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorGray(pdfio_stream_t *st, float g) PDFIO_PUBLIC;
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extern bool pdfioContentSetFillColorRGB(pdfio_stream_t *st, float r, float g, float 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, float f) PDFIO_PUBLIC;
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extern bool pdfioContentSetFont(pdfio_stream_t *st, const char *name, float size) 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, float w) PDFIO_PUBLIC;
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extern bool pdfioContentSetMiterLimit(pdfio_stream_t *st, float l) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceCMYK(pdfio_stream_t *st, float c, float m, float y, float k) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceGray(pdfio_stream_t *st, float g) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorDeviceRGB(pdfio_stream_t *st, float r, float g, float b) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorGray(pdfio_stream_t *st, float g) PDFIO_PUBLIC;
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extern bool pdfioContentSetStrokeColorRGB(pdfio_stream_t *st, float r, float g, float 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 pdfioContentSetTextLeading(pdfio_stream_t *st, float 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, float rise) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextWordSpacing(pdfio_stream_t *st, float spacing) PDFIO_PUBLIC;
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extern bool pdfioContentSetTextXScaling(pdfio_stream_t *st, float percent) PDFIO_PUBLIC;
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extern bool pdfioContentShowJustifiedText(pdfio_stream_t *st, size_t num_fragments, const float **offsets, const char * const *fragments) PDFIO_PUBLIC;
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extern bool pdfioContentShowText(pdfio_stream_t *st, const char *s, bool new_line) PDFIO_PUBLIC;
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extern bool pdfioContentStroke(pdfio_stream_t *st) 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);
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extern bool pdfioPageDictAddCalibratedColorSpace(pdfio_dict_t *dict, const char *name, size_t num_colors, const float *white_point, float gamma);
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extern bool pdfioPageDictAddFont(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj);
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extern bool pdfioPageDictAddImage(pdfio_dict_t *dict, const char *name, pdfio_obj_t *obj);
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// Resource helpers...
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extern pdfio_obj_t *pdfioFileCreateFontObject(pdfio_file_t *pdf, const char *filename) 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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//
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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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