1// Copyright 2014 PDFium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7#ifndef PUBLIC_FPDF_EDIT_H_ 8#define PUBLIC_FPDF_EDIT_H_ 9 10#include <stdint.h> 11 12// NOLINTNEXTLINE(build/include) 13#include "fpdfview.h" 14 15#define FPDF_ARGB(a, r, g, b) \ 16 ((uint32_t)(((uint32_t)(b)&0xff) | (((uint32_t)(g)&0xff) << 8) | \ 17 (((uint32_t)(r)&0xff) << 16) | (((uint32_t)(a)&0xff) << 24))) 18#define FPDF_GetBValue(argb) ((uint8_t)(argb)) 19#define FPDF_GetGValue(argb) ((uint8_t)(((uint16_t)(argb)) >> 8)) 20#define FPDF_GetRValue(argb) ((uint8_t)((argb) >> 16)) 21#define FPDF_GetAValue(argb) ((uint8_t)((argb) >> 24)) 22 23// Refer to PDF Reference version 1.7 table 4.12 for all color space families. 24#define FPDF_COLORSPACE_UNKNOWN 0 25#define FPDF_COLORSPACE_DEVICEGRAY 1 26#define FPDF_COLORSPACE_DEVICERGB 2 27#define FPDF_COLORSPACE_DEVICECMYK 3 28#define FPDF_COLORSPACE_CALGRAY 4 29#define FPDF_COLORSPACE_CALRGB 5 30#define FPDF_COLORSPACE_LAB 6 31#define FPDF_COLORSPACE_ICCBASED 7 32#define FPDF_COLORSPACE_SEPARATION 8 33#define FPDF_COLORSPACE_DEVICEN 9 34#define FPDF_COLORSPACE_INDEXED 10 35#define FPDF_COLORSPACE_PATTERN 11 36 37// The page object constants. 38#define FPDF_PAGEOBJ_UNKNOWN 0 39#define FPDF_PAGEOBJ_TEXT 1 40#define FPDF_PAGEOBJ_PATH 2 41#define FPDF_PAGEOBJ_IMAGE 3 42#define FPDF_PAGEOBJ_SHADING 4 43#define FPDF_PAGEOBJ_FORM 5 44 45// The path segment constants. 46#define FPDF_SEGMENT_UNKNOWN -1 47#define FPDF_SEGMENT_LINETO 0 48#define FPDF_SEGMENT_BEZIERTO 1 49#define FPDF_SEGMENT_MOVETO 2 50 51#define FPDF_FILLMODE_ALTERNATE 1 52#define FPDF_FILLMODE_WINDING 2 53 54#define FPDF_FONT_TYPE1 1 55#define FPDF_FONT_TRUETYPE 2 56 57#define FPDF_LINECAP_BUTT 0 58#define FPDF_LINECAP_ROUND 1 59#define FPDF_LINECAP_PROJECTING_SQUARE 2 60 61#define FPDF_LINEJOIN_MITER 0 62#define FPDF_LINEJOIN_ROUND 1 63#define FPDF_LINEJOIN_BEVEL 2 64 65#define FPDF_PRINTMODE_EMF 0 66#define FPDF_PRINTMODE_TEXTONLY 1 67#define FPDF_PRINTMODE_POSTSCRIPT2 2 68#define FPDF_PRINTMODE_POSTSCRIPT3 3 69 70typedef struct FPDF_IMAGEOBJ_METADATA { 71 // The image width in pixels. 72 unsigned int width; 73 // The image height in pixels. 74 unsigned int height; 75 // The image's horizontal pixel-per-inch. 76 float horizontal_dpi; 77 // The image's vertical pixel-per-inch. 78 float vertical_dpi; 79 // The number of bits used to represent each pixel. 80 unsigned int bits_per_pixel; 81 // The image's colorspace. See above for the list of FPDF_COLORSPACE_*. 82 int colorspace; 83 // The image's marked content ID. Useful for pairing with associated alt-text. 84 // A value of -1 indicates no ID. 85 int marked_content_id; 86} FPDF_IMAGEOBJ_METADATA; 87 88#ifdef __cplusplus 89extern "C" { 90#endif // __cplusplus 91 92// Create a new PDF document. 93// 94// Returns a handle to a new document, or NULL on failure. 95FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument(); 96 97// Create a new PDF page. 98// 99// document - handle to document. 100// page_index - suggested index of the page to create. If it is larger than 101// document's current last index(L), the created page index is 102// the next available index -- L+1. 103// width - the page width. 104// height - the page height. 105// 106// Returns the handle to the new page. 107// 108// The page should be closed with CPDF_ClosePage() when finished as 109// with any other page in the document. 110FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document, 111 int page_index, 112 double width, 113 double height); 114 115// Delete the page at |page_index|. 116// 117// document - handle to document. 118// page_index - the index of the page to delete. 119FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document, 120 int page_index); 121 122// Get the rotation of |page|. 123// 124// page - handle to a page 125// 126// Returns one of the following indicating the page rotation: 127// 0 - No rotation. 128// 1 - Rotated 90 degrees clockwise. 129// 2 - Rotated 180 degrees clockwise. 130// 3 - Rotated 270 degrees clockwise. 131FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page); 132 133// Set rotation for |page|. 134// 135// page - handle to a page. 136// rotate - the rotation value, one of: 137// 0 - No rotation. 138// 1 - Rotated 90 degrees clockwise. 139// 2 - Rotated 180 degrees clockwise. 140// 3 - Rotated 270 degrees clockwise. 141FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page, int rotate); 142 143// Insert |page_obj| into |page|. 144// 145// page - handle to a page 146// page_obj - handle to a page object. The |page_obj| will be automatically 147// freed. 148FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page, 149 FPDF_PAGEOBJECT page_obj); 150 151// Get number of page objects inside |page|. 152// 153// page - handle to a page. 154// 155// Returns the number of objects in |page|. 156// 157// DEPRECATED. Please use FPDFPage_CountObjects. 158FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObject(FPDF_PAGE page); 159 160// Get number of page objects inside |page|. 161// 162// page - handle to a page. 163// 164// Returns the number of objects in |page|. 165FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page); 166 167// Get object in |page| at |index|. 168// 169// page - handle to a page. 170// index - the index of a page object. 171// 172// Returns the handle to the page object, or NULL on failed. 173FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page, 174 int index); 175 176// Checks if |page| contains transparency. 177// 178// page - handle to a page. 179// 180// Returns TRUE if |page| contains transparency. 181FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page); 182 183// Generate the content of |page|. 184// 185// page - handle to a page. 186// 187// Returns TRUE on success. 188// 189// Before you save the page to a file, or reload the page, you must call 190// |FPDFPage_GenerateContent| or any changes to |page| will be lost. 191FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page); 192 193// Destroy |page_obj| by releasing its resources. |page_obj| must have been 194// created by FPDFPageObj_CreateNew{Path|Rect}() or 195// FPDFPageObj_New{Text|Image}Obj(). This function must be called on 196// newly-created objects if they are not added to a page through 197// FPDFPage_InsertObject() or to an annotation through FPDFAnnot_AppendObject(). 198// 199// page_obj - handle to a page object. 200FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_obj); 201 202// Checks if |page_object| contains transparency. 203// 204// page_object - handle to a page object. 205// 206// Returns TRUE if |pageObject| contains transparency. 207FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 208FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT page_object); 209 210// Get type of |page_object|. 211// 212// page_object - handle to a page object. 213// 214// Returns one of the FPDF_PAGEOBJ_* values on success, FPDF_PAGEOBJ_UNKNOWN on 215// error. 216FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT page_object); 217 218// Transform |page_object| by the given matrix. 219// 220// page_object - handle to a page object. 221// a - matrix value. 222// b - matrix value. 223// c - matrix value. 224// d - matrix value. 225// e - matrix value. 226// f - matrix value. 227// 228// The matrix is composed as: 229// |a c e| 230// |b d f| 231// and can be used to scale, rotate, shear and translate the |page_object|. 232FPDF_EXPORT void FPDF_CALLCONV 233FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object, 234 double a, 235 double b, 236 double c, 237 double d, 238 double e, 239 double f); 240 241// Transform all annotations in |page|. 242// 243// page - handle to a page. 244// a - matrix value. 245// b - matrix value. 246// c - matrix value. 247// d - matrix value. 248// e - matrix value. 249// f - matrix value. 250// 251// The matrix is composed as: 252// |a c e| 253// |b d f| 254// and can be used to scale, rotate, shear and translate the |page| annotations. 255FPDF_EXPORT void FPDF_CALLCONV FPDFPage_TransformAnnots(FPDF_PAGE page, 256 double a, 257 double b, 258 double c, 259 double d, 260 double e, 261 double f); 262 263// Create a new image object. 264// 265// document - handle to a document. 266// 267// Returns a handle to a new image object. 268FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV 269FPDFPageObj_NewImageObj(FPDF_DOCUMENT document); 270 271// Load an image from a JPEG image file and then set it into |image_object|. 272// 273// pages - pointer to the start of all loaded pages, may be NULL. 274// nCount - number of |pages|, may be 0. 275// image_object - handle to an image object. 276// fileAccess - file access handler which specifies the JPEG image file. 277// 278// Returns TRUE on success. 279// 280// The image object might already have an associated image, which is shared and 281// cached by the loaded pages. In that case, we need to clear the cached image 282// for all the loaded pages. Pass |pages| and page count (|nCount|) to this API 283// to clear the image cache. If the image is not previously shared, or NULL is a 284// valid |pages| value. 285FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 286FPDFImageObj_LoadJpegFile(FPDF_PAGE* pages, 287 int nCount, 288 FPDF_PAGEOBJECT image_object, 289 FPDF_FILEACCESS* fileAccess); 290 291// Load an image from a JPEG image file and then set it into |image_object|. 292// 293// pages - pointer to the start of all loaded pages, may be NULL. 294// nCount - number of |pages|, may be 0. 295// image_object - handle to an image object. 296// fileAccess - file access handler which specifies the JPEG image file. 297// 298// Returns TRUE on success. 299// 300// The image object might already have an associated image, which is shared and 301// cached by the loaded pages. In that case, we need to clear the cached image 302// for all the loaded pages. Pass |pages| and page count (|nCount|) to this API 303// to clear the image cache. If the image is not previously shared, or NULL is a 304// valid |pages| value. This function loads the JPEG image inline, so the image 305// content is copied to the file. This allows |fileAccess| and its associated 306// data to be deleted after this function returns. 307FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 308FPDFImageObj_LoadJpegFileInline(FPDF_PAGE* pages, 309 int nCount, 310 FPDF_PAGEOBJECT image_object, 311 FPDF_FILEACCESS* fileAccess); 312 313// Set the transform matrix of |image_object|. 314// 315// image_object - handle to an image object. 316// a - matrix value. 317// b - matrix value. 318// c - matrix value. 319// d - matrix value. 320// e - matrix value. 321// f - matrix value. 322// 323// The matrix is composed as: 324// |a c e| 325// |b d f| 326// and can be used to scale, rotate, shear and translate the |page| annotations. 327// 328// Returns TRUE on success. 329FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 330FPDFImageObj_SetMatrix(FPDF_PAGEOBJECT image_object, 331 double a, 332 double b, 333 double c, 334 double d, 335 double e, 336 double f); 337 338// Set |bitmap| to |image_object|. 339// 340// pages - pointer to the start of all loaded pages, may be NULL. 341// nCount - number of |pages|, may be 0. 342// image_object - handle to an image object. 343// bitmap - handle of the bitmap. 344// 345// Returns TRUE on success. 346FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 347FPDFImageObj_SetBitmap(FPDF_PAGE* pages, 348 int nCount, 349 FPDF_PAGEOBJECT image_object, 350 FPDF_BITMAP bitmap); 351 352// Get a bitmap rasterisation of |image_object|. The returned bitmap will be 353// owned by the caller, and FPDFBitmap_Destroy() must be called on the returned 354// bitmap when it is no longer needed. 355// 356// image_object - handle to an image object. 357// 358// Returns the bitmap. 359FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV 360FPDFImageObj_GetBitmap(FPDF_PAGEOBJECT image_object); 361 362// Get the decoded image data of |image_object|. The decoded data is the 363// uncompressed image data, i.e. the raw image data after having all filters 364// applied. |buffer| is only modified if |buflen| is longer than the length of 365// the decoded image data. 366// 367// image_object - handle to an image object. 368// buffer - buffer for holding the decoded image data in raw bytes. 369// buflen - length of the buffer. 370// 371// Returns the length of the decoded image data. 372FPDF_EXPORT unsigned long FPDF_CALLCONV 373FPDFImageObj_GetImageDataDecoded(FPDF_PAGEOBJECT image_object, 374 void* buffer, 375 unsigned long buflen); 376 377// Get the raw image data of |image_object|. The raw data is the image data as 378// stored in the PDF without applying any filters. |buffer| is only modified if 379// |buflen| is longer than the length of the raw image data. 380// 381// image_object - handle to an image object. 382// buffer - buffer for holding the raw image data in raw bytes. 383// buflen - length of the buffer. 384// 385// Returns the length of the raw image data. 386FPDF_EXPORT unsigned long FPDF_CALLCONV 387FPDFImageObj_GetImageDataRaw(FPDF_PAGEOBJECT image_object, 388 void* buffer, 389 unsigned long buflen); 390 391// Get the number of filters (i.e. decoders) of the image in |image_object|. 392// 393// image_object - handle to an image object. 394// 395// Returns the number of |image_object|'s filters. 396FPDF_EXPORT int FPDF_CALLCONV 397FPDFImageObj_GetImageFilterCount(FPDF_PAGEOBJECT image_object); 398 399// Get the filter at |index| of |image_object|'s list of filters. Note that the 400// filters need to be applied in order, i.e. the first filter should be applied 401// first, then the second, etc. |buffer| is only modified if |buflen| is longer 402// than the length of the filter string. 403// 404// image_object - handle to an image object. 405// index - the index of the filter requested. 406// buffer - buffer for holding filter string, encoded in UTF-8. 407// buflen - length of the buffer. 408// 409// Returns the length of the filter string. 410FPDF_EXPORT unsigned long FPDF_CALLCONV 411FPDFImageObj_GetImageFilter(FPDF_PAGEOBJECT image_object, 412 int index, 413 void* buffer, 414 unsigned long buflen); 415 416// Get the image metadata of |image_object|, including dimension, DPI, bits per 417// pixel, and colorspace. If the |image_object| is not an image object or if it 418// does not have an image, then the return value will be false. Otherwise, 419// failure to retrieve any specific parameter would result in its value being 0. 420// 421// image_object - handle to an image object. 422// page - handle to the page that |image_object| is on. Required for 423// retrieving the image's bits per pixel and colorspace. 424// metadata - receives the image metadata; must not be NULL. 425// 426// Returns true if successful. 427FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 428FPDFImageObj_GetImageMetadata(FPDF_PAGEOBJECT image_object, 429 FPDF_PAGE page, 430 FPDF_IMAGEOBJ_METADATA* metadata); 431 432// Create a new path object at an initial position. 433// 434// x - initial horizontal position. 435// y - initial vertical position. 436// 437// Returns a handle to a new path object. 438FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewPath(float x, 439 float y); 440 441// Create a closed path consisting of a rectangle. 442// 443// x - horizontal position for the left boundary of the rectangle. 444// y - vertical position for the bottom boundary of the rectangle. 445// w - width of the rectangle. 446// h - height of the rectangle. 447// 448// Returns a handle to the new path object. 449FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewRect(float x, 450 float y, 451 float w, 452 float h); 453 454// Get the bounding box of |page_object|. 455// 456// page_object - handle to a page object. 457// left - pointer where the left coordinate will be stored 458// bottom - pointer where the bottom coordinate will be stored 459// right - pointer where the right coordinate will be stored 460// top - pointer where the top coordinate will be stored 461// 462// Returns TRUE on success. 463FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 464FPDFPageObj_GetBounds(FPDF_PAGEOBJECT page_object, 465 float* left, 466 float* bottom, 467 float* right, 468 float* top); 469 470// Set the blend mode of |page_object|. 471// 472// page_object - handle to a page object. 473// blend_mode - string containing the blend mode. 474// 475// Blend mode can be one of following: Color, ColorBurn, ColorDodge, Darken, 476// Difference, Exclusion, HardLight, Hue, Lighten, Luminosity, Multiply, Normal, 477// Overlay, Saturation, Screen, SoftLight 478FPDF_EXPORT void FPDF_CALLCONV 479FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object, 480 FPDF_BYTESTRING blend_mode); 481 482// Set the stroke RGBA of a path. Range of values: 0 - 255. 483// 484// path - the handle to the path object. 485// R - the red component for the path stroke color. 486// G - the green component for the path stroke color. 487// B - the blue component for the path stroke color. 488// A - the stroke alpha for the path. 489// 490// Returns TRUE on success. 491FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 492FPDFPath_SetStrokeColor(FPDF_PAGEOBJECT path, 493 unsigned int R, 494 unsigned int G, 495 unsigned int B, 496 unsigned int A); 497 498// Get the stroke RGBA of a path. Range of values: 0 - 255. 499// 500// path - the handle to the path object. 501// R - the red component of the path stroke color. 502// G - the green component of the path stroke color. 503// B - the blue component of the path stroke color. 504// A - the stroke alpha of the path. 505// 506// Returns TRUE on success. 507FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 508FPDFPath_GetStrokeColor(FPDF_PAGEOBJECT path, 509 unsigned int* R, 510 unsigned int* G, 511 unsigned int* B, 512 unsigned int* A); 513 514// Set the stroke width of a path. 515// 516// path - the handle to the path object. 517// width - the width of the stroke. 518// 519// Returns TRUE on success 520FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 521FPDFPath_SetStrokeWidth(FPDF_PAGEOBJECT path, float width); 522 523// Set the line join of |page_object|. 524// 525// page_object - handle to a page object. 526// line_join - line join 527// 528// Line join can be one of following: FPDF_LINEJOIN_MITER, FPDF_LINEJOIN_ROUND, 529// FPDF_LINEJOIN_BEVEL 530FPDF_EXPORT void FPDF_CALLCONV FPDFPath_SetLineJoin(FPDF_PAGEOBJECT page_object, 531 int line_join); 532 533// Set the line cap of |page_object|. 534// 535// page_object - handle to a page object. 536// line_cap - line cap 537// 538// Line cap can be one of following: FPDF_LINECAP_BUTT, FPDF_LINECAP_ROUND, 539// FPDF_LINECAP_PROJECTING_SQUARE 540FPDF_EXPORT void FPDF_CALLCONV FPDFPath_SetLineCap(FPDF_PAGEOBJECT page_object, 541 int line_cap); 542 543// Set the fill RGBA of a path. Range of values: 0 - 255. 544// 545// path - the handle to the path object. 546// R - the red component for the path fill color. 547// G - the green component for the path fill color. 548// B - the blue component for the path fill color. 549// A - the fill alpha for the path. 550// 551// Returns TRUE on success. 552FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_SetFillColor(FPDF_PAGEOBJECT path, 553 unsigned int R, 554 unsigned int G, 555 unsigned int B, 556 unsigned int A); 557 558// Get the fill RGBA of a path. Range of values: 0 - 255. 559// 560// path - the handle to the path object. 561// R - the red component of the path fill color. 562// G - the green component of the path fill color. 563// B - the blue component of the path fill color. 564// A - the fill alpha of the path. 565// 566// Returns TRUE on success. 567FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_GetFillColor(FPDF_PAGEOBJECT path, 568 unsigned int* R, 569 unsigned int* G, 570 unsigned int* B, 571 unsigned int* A); 572 573// Experimental API. 574// Get number of segments inside |path|. 575// 576// path - handle to a path. 577// 578// A segment is a command, created by e.g. FPDFPath_MoveTo(), 579// FPDFPath_LineTo() or FPDFPath_BezierTo(). 580// 581// Returns the number of objects in |path| or -1 on failure. 582FPDF_EXPORT int FPDF_CALLCONV FPDFPath_CountSegments(FPDF_PAGEOBJECT path); 583 584// Experimental API. 585// Get segment in |path| at |index|. 586// 587// path - handle to a path. 588// index - the index of a segment. 589// 590// Returns the handle to the segment, or NULL on faiure. 591FPDF_EXPORT FPDF_PATHSEGMENT FPDF_CALLCONV 592FPDFPath_GetPathSegment(FPDF_PAGEOBJECT path, int index); 593 594// Experimental API. 595// Get coordinates of |segment|. 596// 597// segment - handle to a segment. 598// x - the horizontal position of the segment. 599// y - the vertical position of the segment. 600// 601// Returns TRUE on success, otherwise |x| and |y| is not set. 602FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 603FPDFPathSegment_GetPoint(FPDF_PATHSEGMENT segment, float* x, float* y); 604 605// Experimental API. 606// Get type of |segment|. 607// 608// segment - handle to a segment. 609// 610// Returns one of the FPDF_SEGMENT_* values on success, 611// FPDF_SEGMENT_UNKNOWN on error. 612FPDF_EXPORT int FPDF_CALLCONV FPDFPathSegment_GetType(FPDF_PATHSEGMENT segment); 613 614// Experimental API. 615// Gets if the |segment| closes the current subpath of a given path. 616// 617// segment - handle to a segment. 618// 619// Returns close flag for non-NULL segment, FALSE otherwise. 620FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 621FPDFPathSegment_GetClose(FPDF_PATHSEGMENT segment); 622 623// Move a path's current point. 624// 625// path - the handle to the path object. 626// x - the horizontal position of the new current point. 627// y - the vertical position of the new current point. 628// 629// Note that no line will be created between the previous current point and the 630// new one. 631// 632// Returns TRUE on success 633FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_MoveTo(FPDF_PAGEOBJECT path, 634 float x, 635 float y); 636 637// Add a line between the current point and a new point in the path. 638// 639// path - the handle to the path object. 640// x - the horizontal position of the new point. 641// y - the vertical position of the new point. 642// 643// The path's current point is changed to (x, y). 644// 645// Returns TRUE on success 646FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_LineTo(FPDF_PAGEOBJECT path, 647 float x, 648 float y); 649 650// Add a cubic Bezier curve to the given path, starting at the current point. 651// 652// path - the handle to the path object. 653// x1 - the horizontal position of the first Bezier control point. 654// y1 - the vertical position of the first Bezier control point. 655// x2 - the horizontal position of the second Bezier control point. 656// y2 - the vertical position of the second Bezier control point. 657// x3 - the horizontal position of the ending point of the Bezier curve. 658// y3 - the vertical position of the ending point of the Bezier curve. 659// 660// Returns TRUE on success 661FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_BezierTo(FPDF_PAGEOBJECT path, 662 float x1, 663 float y1, 664 float x2, 665 float y2, 666 float x3, 667 float y3); 668 669// Close the current subpath of a given path. 670// 671// path - the handle to the path object. 672// 673// This will add a line between the current point and the initial point of the 674// subpath, thus terminating the current subpath. 675// 676// Returns TRUE on success 677FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_Close(FPDF_PAGEOBJECT path); 678 679// Set the drawing mode of a path. 680// 681// path - the handle to the path object. 682// fillmode - the filling mode to be set: 0 for no fill, 1 for alternate, 2 for 683// winding. 684// stroke - a boolean specifying if the path should be stroked or not. 685// 686// Returns TRUE on success 687FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_SetDrawMode(FPDF_PAGEOBJECT path, 688 int fillmode, 689 FPDF_BOOL stroke); 690 691// Create a new text object using one of the standard PDF fonts. 692// 693// document - handle to the document. 694// font - string containing the font name, without spaces. 695// font_size - the font size for the new text object. 696// 697// Returns a handle to a new text object, or NULL on failure 698FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV 699FPDFPageObj_NewTextObj(FPDF_DOCUMENT document, 700 FPDF_BYTESTRING font, 701 float font_size); 702 703// Set the text for a textobject. If it had text, it will be replaced. 704// 705// text_object - handle to the text object. 706// text - the UTF-16LE encoded string containing the text to be added. 707// 708// Returns TRUE on success 709FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 710FPDFText_SetText(FPDF_PAGEOBJECT text_object, FPDF_WIDESTRING text); 711 712// Returns a font object loaded from a stream of data. The font is loaded 713// into the document. 714// 715// document - handle to the document. 716// data - the stream of data, which will be copied by the font object. 717// size - size of the stream, in bytes. 718// font_type - FPDF_FONT_TYPE1 or FPDF_FONT_TRUETYPE depending on the font 719// type. 720// cid - a boolean specifying if the font is a CID font or not. 721// 722// The loaded font can be closed using FPDF_Font_Close. 723// 724// Returns NULL on failure 725FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFText_LoadFont(FPDF_DOCUMENT document, 726 const uint8_t* data, 727 uint32_t size, 728 int font_type, 729 FPDF_BOOL cid); 730 731// Set the fill RGBA of a text object. Range of values: 0 - 255. 732// 733// text_object - handle to the text object. 734// R - the red component for the path fill color. 735// G - the green component for the path fill color. 736// B - the blue component for the path fill color. 737// A - the fill alpha for the path. 738// 739// Returns TRUE on success. 740FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV 741FPDFText_SetFillColor(FPDF_PAGEOBJECT text_object, 742 unsigned int R, 743 unsigned int G, 744 unsigned int B, 745 unsigned int A); 746 747// Close a loaded PDF font. 748// 749// font - Handle to the loaded font. 750FPDF_EXPORT void FPDF_CALLCONV FPDFFont_Close(FPDF_FONT font); 751 752// Create a new text object using a loaded font. 753// 754// document - handle to the document. 755// font - handle to the font object. 756// font_size - the font size for the new text object. 757// 758// Returns a handle to a new text object, or NULL on failure 759FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV 760FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document, 761 FPDF_FONT font, 762 float font_size); 763 764#ifdef __cplusplus 765} // extern "C" 766#endif // __cplusplus 767 768#endif // PUBLIC_FPDF_EDIT_H_ 769