// Copyright 2014 The PDFium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com #ifndef PUBLIC_FPDF_EDIT_H_ #define PUBLIC_FPDF_EDIT_H_ #include // NOLINTNEXTLINE(build/include) #include "fpdfview.h" #define FPDF_ARGB(a, r, g, b) \ ((uint32_t)(((uint32_t)(b)&0xff) | (((uint32_t)(g)&0xff) << 8) | \ (((uint32_t)(r)&0xff) << 16) | (((uint32_t)(a)&0xff) << 24))) #define FPDF_GetBValue(argb) ((uint8_t)(argb)) #define FPDF_GetGValue(argb) ((uint8_t)(((uint16_t)(argb)) >> 8)) #define FPDF_GetRValue(argb) ((uint8_t)((argb) >> 16)) #define FPDF_GetAValue(argb) ((uint8_t)((argb) >> 24)) // Refer to PDF Reference version 1.7 table 4.12 for all color space families. #define FPDF_COLORSPACE_UNKNOWN 0 #define FPDF_COLORSPACE_DEVICEGRAY 1 #define FPDF_COLORSPACE_DEVICERGB 2 #define FPDF_COLORSPACE_DEVICECMYK 3 #define FPDF_COLORSPACE_CALGRAY 4 #define FPDF_COLORSPACE_CALRGB 5 #define FPDF_COLORSPACE_LAB 6 #define FPDF_COLORSPACE_ICCBASED 7 #define FPDF_COLORSPACE_SEPARATION 8 #define FPDF_COLORSPACE_DEVICEN 9 #define FPDF_COLORSPACE_INDEXED 10 #define FPDF_COLORSPACE_PATTERN 11 // The page object constants. #define FPDF_PAGEOBJ_UNKNOWN 0 #define FPDF_PAGEOBJ_TEXT 1 #define FPDF_PAGEOBJ_PATH 2 #define FPDF_PAGEOBJ_IMAGE 3 #define FPDF_PAGEOBJ_SHADING 4 #define FPDF_PAGEOBJ_FORM 5 // The path segment constants. #define FPDF_SEGMENT_UNKNOWN -1 #define FPDF_SEGMENT_LINETO 0 #define FPDF_SEGMENT_BEZIERTO 1 #define FPDF_SEGMENT_MOVETO 2 #define FPDF_FILLMODE_NONE 0 #define FPDF_FILLMODE_ALTERNATE 1 #define FPDF_FILLMODE_WINDING 2 #define FPDF_FONT_TYPE1 1 #define FPDF_FONT_TRUETYPE 2 #define FPDF_LINECAP_BUTT 0 #define FPDF_LINECAP_ROUND 1 #define FPDF_LINECAP_PROJECTING_SQUARE 2 #define FPDF_LINEJOIN_MITER 0 #define FPDF_LINEJOIN_ROUND 1 #define FPDF_LINEJOIN_BEVEL 2 // See FPDF_SetPrintMode() for descriptions. #define FPDF_PRINTMODE_EMF 0 #define FPDF_PRINTMODE_TEXTONLY 1 #define FPDF_PRINTMODE_POSTSCRIPT2 2 #define FPDF_PRINTMODE_POSTSCRIPT3 3 #define FPDF_PRINTMODE_POSTSCRIPT2_PASSTHROUGH 4 #define FPDF_PRINTMODE_POSTSCRIPT3_PASSTHROUGH 5 #define FPDF_PRINTMODE_EMF_IMAGE_MASKS 6 #define FPDF_PRINTMODE_POSTSCRIPT3_TYPE42 7 #define FPDF_PRINTMODE_POSTSCRIPT3_TYPE42_PASSTHROUGH 8 typedef struct FPDF_IMAGEOBJ_METADATA { // The image width in pixels. unsigned int width; // The image height in pixels. unsigned int height; // The image's horizontal pixel-per-inch. float horizontal_dpi; // The image's vertical pixel-per-inch. float vertical_dpi; // The number of bits used to represent each pixel. unsigned int bits_per_pixel; // The image's colorspace. See above for the list of FPDF_COLORSPACE_*. int colorspace; // The image's marked content ID. Useful for pairing with associated alt-text. // A value of -1 indicates no ID. int marked_content_id; } FPDF_IMAGEOBJ_METADATA; #ifdef __cplusplus extern "C" { #endif // __cplusplus // Create a new PDF document. // // Returns a handle to a new document, or NULL on failure. FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument(); // Create a new PDF page. // // document - handle to document. // page_index - suggested 0-based index of the page to create. If it is larger // than document's current last index(L), the created page index // is the next available index -- L+1. // width - the page width in points. // height - the page height in points. // // Returns the handle to the new page or NULL on failure. // // The page should be closed with FPDF_ClosePage() when finished as // with any other page in the document. FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document, int page_index, double width, double height); // Delete the page at |page_index|. // // document - handle to document. // page_index - the index of the page to delete. FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document, int page_index); // Experimental API. // Move the given pages to a new index position. // // page_indices - the ordered list of pages to move. No duplicates allowed. // page_indices_len - the number of elements in |page_indices| // dest_page_index - the new index position to which the pages in // |page_indices| are moved. // // Returns TRUE on success. If it returns FALSE, the document may be left in an // indeterminate state. // // Example: The PDF document starts out with pages [A, B, C, D], with indices // [0, 1, 2, 3]. // // > Move(doc, [3, 2], 2, 1); // returns true // > // The document has pages [A, D, C, B]. // > // > Move(doc, [0, 4, 3], 3, 1); // returns false // > // Returned false because index 4 is out of range. // > // > Move(doc, [0, 3, 1], 3, 2); // returns false // > // Returned false because index 2 is out of range for 3 page indices. // > // > Move(doc, [2, 2], 2, 0); // returns false // > // Returned false because [2, 2] contains duplicates. // FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDF_MovePages(FPDF_DOCUMENT document, const int* page_indices, unsigned long page_indices_len, int dest_page_index); // Get the rotation of |page|. // // page - handle to a page // // Returns one of the following indicating the page rotation: // 0 - No rotation. // 1 - Rotated 90 degrees clockwise. // 2 - Rotated 180 degrees clockwise. // 3 - Rotated 270 degrees clockwise. FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page); // Set rotation for |page|. // // page - handle to a page. // rotate - the rotation value, one of: // 0 - No rotation. // 1 - Rotated 90 degrees clockwise. // 2 - Rotated 180 degrees clockwise. // 3 - Rotated 270 degrees clockwise. FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page, int rotate); // Insert |page_object| into |page|. // // page - handle to a page // page_object - handle to a page object. The |page_object| will be // automatically freed. FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_object); // Experimental API. // Remove |page_object| from |page|. // // page - handle to a page // page_object - handle to a page object to be removed. // // Returns TRUE on success. // // Ownership is transferred to the caller. Call FPDFPageObj_Destroy() to free // it. // Note that when removing a |page_object| of type FPDF_PAGEOBJ_TEXT, all // FPDF_TEXTPAGE handles for |page| are no longer valid. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_RemoveObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_object); // Get number of page objects inside |page|. // // page - handle to a page. // // Returns the number of objects in |page|. FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page); // Get object in |page| at |index|. // // page - handle to a page. // index - the index of a page object. // // Returns the handle to the page object, or NULL on failed. FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page, int index); // Checks if |page| contains transparency. // // page - handle to a page. // // Returns TRUE if |page| contains transparency. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page); // Generate the content of |page|. // // page - handle to a page. // // Returns TRUE on success. // // Before you save the page to a file, or reload the page, you must call // |FPDFPage_GenerateContent| or any changes to |page| will be lost. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page); // Destroy |page_object| by releasing its resources. |page_object| must have // been created by FPDFPageObj_CreateNew{Path|Rect}() or // FPDFPageObj_New{Text|Image}Obj(). This function must be called on // newly-created objects if they are not added to a page through // FPDFPage_InsertObject() or to an annotation through FPDFAnnot_AppendObject(). // // page_object - handle to a page object. FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_object); // Checks if |page_object| contains transparency. // // page_object - handle to a page object. // // Returns TRUE if |page_object| contains transparency. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT page_object); // Get type of |page_object|. // // page_object - handle to a page object. // // Returns one of the FPDF_PAGEOBJ_* values on success, FPDF_PAGEOBJ_UNKNOWN on // error. FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT page_object); // Transform |page_object| by the given matrix. // // page_object - handle to a page object. // a - matrix value. // b - matrix value. // c - matrix value. // d - matrix value. // e - matrix value. // f - matrix value. // // The matrix is composed as: // |a c e| // |b d f| // and can be used to scale, rotate, shear and translate the |page_object|. FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object, double a, double b, double c, double d, double e, double f); // Experimental API. // Transform |page_object| by the given matrix. // // page_object - handle to a page object. // matrix - the transform matrix. // // Returns TRUE on success. // // This can be used to scale, rotate, shear and translate the |page_object|. // It is an improved version of FPDFPageObj_Transform() that does not do // unnecessary double to float conversions, and only uses 1 parameter for the // matrix. It also returns whether the operation succeeded or not. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_TransformF(FPDF_PAGEOBJECT page_object, const FS_MATRIX* matrix); // Experimental API. // Get the transform matrix of a page object. // // page_object - handle to a page object. // matrix - pointer to struct to receive the matrix value. // // The matrix is composed as: // |a c e| // |b d f| // and used to scale, rotate, shear and translate the page object. // // For page objects outside form objects, the matrix values are relative to the // page that contains it. // For page objects inside form objects, the matrix values are relative to the // form that contains it. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetMatrix(FPDF_PAGEOBJECT page_object, FS_MATRIX* matrix); // Experimental API. // Set the transform matrix of a page object. // // page_object - handle to a page object. // matrix - pointer to struct with the matrix value. // // The matrix is composed as: // |a c e| // |b d f| // and can be used to scale, rotate, shear and translate the page object. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetMatrix(FPDF_PAGEOBJECT page_object, const FS_MATRIX* matrix); // Transform all annotations in |page|. // // page - handle to a page. // a - matrix value. // b - matrix value. // c - matrix value. // d - matrix value. // e - matrix value. // f - matrix value. // // The matrix is composed as: // |a c e| // |b d f| // and can be used to scale, rotate, shear and translate the |page| annotations. FPDF_EXPORT void FPDF_CALLCONV FPDFPage_TransformAnnots(FPDF_PAGE page, double a, double b, double c, double d, double e, double f); // Create a new image object. // // document - handle to a document. // // Returns a handle to a new image object. FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_NewImageObj(FPDF_DOCUMENT document); // Experimental API. // Get the marked content ID for the object. // // page_object - handle to a page object. // // Returns the page object's marked content ID, or -1 on error. FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetMarkedContentID(FPDF_PAGEOBJECT page_object); // Experimental API. // Get number of content marks in |page_object|. // // page_object - handle to a page object. // // Returns the number of content marks in |page_object|, or -1 in case of // failure. FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_CountMarks(FPDF_PAGEOBJECT page_object); // Experimental API. // Get content mark in |page_object| at |index|. // // page_object - handle to a page object. // index - the index of a page object. // // Returns the handle to the content mark, or NULL on failure. The handle is // still owned by the library, and it should not be freed directly. It becomes // invalid if the page object is destroyed, either directly or indirectly by // unloading the page. FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index); // Experimental API. // Add a new content mark to a |page_object|. // // page_object - handle to a page object. // name - the name (tag) of the mark. // // Returns the handle to the content mark, or NULL on failure. The handle is // still owned by the library, and it should not be freed directly. It becomes // invalid if the page object is destroyed, either directly or indirectly by // unloading the page. FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV FPDFPageObj_AddMark(FPDF_PAGEOBJECT page_object, FPDF_BYTESTRING name); // Experimental API. // Removes a content |mark| from a |page_object|. // The mark handle will be invalid after the removal. // // page_object - handle to a page object. // mark - handle to a content mark in that object to remove. // // Returns TRUE if the operation succeeded, FALSE if it failed. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_RemoveMark(FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark); // Experimental API. // Get the name of a content mark. // // mark - handle to a content mark. // buffer - buffer for holding the returned name in UTF-16LE. This is only // modified if |buflen| is longer than the length of the name. // Optional, pass null to just retrieve the size of the buffer // needed. // buflen - length of the buffer. // out_buflen - pointer to variable that will receive the minimum buffer size // to contain the name. Not filled if FALSE is returned. // // Returns TRUE if the operation succeeded, FALSE if it failed. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark, void* buffer, unsigned long buflen, unsigned long* out_buflen); // Experimental API. // Get the number of key/value pair parameters in |mark|. // // mark - handle to a content mark. // // Returns the number of key/value pair parameters |mark|, or -1 in case of // failure. FPDF_EXPORT int FPDF_CALLCONV FPDFPageObjMark_CountParams(FPDF_PAGEOBJECTMARK mark); // Experimental API. // Get the key of a property in a content mark. // // mark - handle to a content mark. // index - index of the property. // buffer - buffer for holding the returned key in UTF-16LE. This is only // modified if |buflen| is longer than the length of the key. // Optional, pass null to just retrieve the size of the buffer // needed. // buflen - length of the buffer. // out_buflen - pointer to variable that will receive the minimum buffer size // to contain the key. Not filled if FALSE is returned. // // Returns TRUE if the operation was successful, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_GetParamKey(FPDF_PAGEOBJECTMARK mark, unsigned long index, void* buffer, unsigned long buflen, unsigned long* out_buflen); // Experimental API. // Get the type of the value of a property in a content mark by key. // // mark - handle to a content mark. // key - string key of the property. // // Returns the type of the value, or FPDF_OBJECT_UNKNOWN in case of failure. FPDF_EXPORT FPDF_OBJECT_TYPE FPDF_CALLCONV FPDFPageObjMark_GetParamValueType(FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key); // Experimental API. // Get the value of a number property in a content mark by key as int. // FPDFPageObjMark_GetParamValueType() should have returned FPDF_OBJECT_NUMBER // for this property. // // mark - handle to a content mark. // key - string key of the property. // out_value - pointer to variable that will receive the value. Not filled if // false is returned. // // Returns TRUE if the key maps to a number value, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_GetParamIntValue(FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, int* out_value); // Experimental API. // Get the value of a string property in a content mark by key. // // mark - handle to a content mark. // key - string key of the property. // buffer - buffer for holding the returned value in UTF-16LE. This is // only modified if |buflen| is longer than the length of the // value. // Optional, pass null to just retrieve the size of the buffer // needed. // buflen - length of the buffer. // out_buflen - pointer to variable that will receive the minimum buffer size // to contain the value. Not filled if FALSE is returned. // // Returns TRUE if the key maps to a string/blob value, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_GetParamStringValue(FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, void* buffer, unsigned long buflen, unsigned long* out_buflen); // Experimental API. // Get the value of a blob property in a content mark by key. // // mark - handle to a content mark. // key - string key of the property. // buffer - buffer for holding the returned value. This is only modified // if |buflen| is at least as long as the length of the value. // Optional, pass null to just retrieve the size of the buffer // needed. // buflen - length of the buffer. // out_buflen - pointer to variable that will receive the minimum buffer size // to contain the value. Not filled if FALSE is returned. // // Returns TRUE if the key maps to a string/blob value, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_GetParamBlobValue(FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, void* buffer, unsigned long buflen, unsigned long* out_buflen); // Experimental API. // Set the value of an int property in a content mark by key. If a parameter // with key |key| exists, its value is set to |value|. Otherwise, it is added as // a new parameter. // // document - handle to the document. // page_object - handle to the page object with the mark. // mark - handle to a content mark. // key - string key of the property. // value - int value to set. // // Returns TRUE if the operation succeeded, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_SetIntParam(FPDF_DOCUMENT document, FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, int value); // Experimental API. // Set the value of a string property in a content mark by key. If a parameter // with key |key| exists, its value is set to |value|. Otherwise, it is added as // a new parameter. // // document - handle to the document. // page_object - handle to the page object with the mark. // mark - handle to a content mark. // key - string key of the property. // value - string value to set. // // Returns TRUE if the operation succeeded, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_SetStringParam(FPDF_DOCUMENT document, FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, FPDF_BYTESTRING value); // Experimental API. // Set the value of a blob property in a content mark by key. If a parameter // with key |key| exists, its value is set to |value|. Otherwise, it is added as // a new parameter. // // document - handle to the document. // page_object - handle to the page object with the mark. // mark - handle to a content mark. // key - string key of the property. // value - pointer to blob value to set. // value_len - size in bytes of |value|. // // Returns TRUE if the operation succeeded, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_SetBlobParam(FPDF_DOCUMENT document, FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key, void* value, unsigned long value_len); // Experimental API. // Removes a property from a content mark by key. // // page_object - handle to the page object with the mark. // mark - handle to a content mark. // key - string key of the property. // // Returns TRUE if the operation succeeded, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObjMark_RemoveParam(FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark, FPDF_BYTESTRING key); // Load an image from a JPEG image file and then set it into |image_object|. // // pages - pointer to the start of all loaded pages, may be NULL. // count - number of |pages|, may be 0. // image_object - handle to an image object. // file_access - file access handler which specifies the JPEG image file. // // Returns TRUE on success. // // The image object might already have an associated image, which is shared and // cached by the loaded pages. In that case, we need to clear the cached image // for all the loaded pages. Pass |pages| and page count (|count|) to this API // to clear the image cache. If the image is not previously shared, or NULL is a // valid |pages| value. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_LoadJpegFile(FPDF_PAGE* pages, int count, FPDF_PAGEOBJECT image_object, FPDF_FILEACCESS* file_access); // Load an image from a JPEG image file and then set it into |image_object|. // // pages - pointer to the start of all loaded pages, may be NULL. // count - number of |pages|, may be 0. // image_object - handle to an image object. // file_access - file access handler which specifies the JPEG image file. // // Returns TRUE on success. // // The image object might already have an associated image, which is shared and // cached by the loaded pages. In that case, we need to clear the cached image // for all the loaded pages. Pass |pages| and page count (|count|) to this API // to clear the image cache. If the image is not previously shared, or NULL is a // valid |pages| value. This function loads the JPEG image inline, so the image // content is copied to the file. This allows |file_access| and its associated // data to be deleted after this function returns. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_LoadJpegFileInline(FPDF_PAGE* pages, int count, FPDF_PAGEOBJECT image_object, FPDF_FILEACCESS* file_access); // TODO(thestig): Start deprecating this once FPDFPageObj_SetMatrix() is stable. // // Set the transform matrix of |image_object|. // // image_object - handle to an image object. // a - matrix value. // b - matrix value. // c - matrix value. // d - matrix value. // e - matrix value. // f - matrix value. // // The matrix is composed as: // |a c e| // |b d f| // and can be used to scale, rotate, shear and translate the |image_object|. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_SetMatrix(FPDF_PAGEOBJECT image_object, double a, double b, double c, double d, double e, double f); // Set |bitmap| to |image_object|. // // pages - pointer to the start of all loaded pages, may be NULL. // count - number of |pages|, may be 0. // image_object - handle to an image object. // bitmap - handle of the bitmap. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_SetBitmap(FPDF_PAGE* pages, int count, FPDF_PAGEOBJECT image_object, FPDF_BITMAP bitmap); // Get a bitmap rasterization of |image_object|. FPDFImageObj_GetBitmap() only // operates on |image_object| and does not take the associated image mask into // account. It also ignores the matrix for |image_object|. // The returned bitmap will be owned by the caller, and FPDFBitmap_Destroy() // must be called on the returned bitmap when it is no longer needed. // // image_object - handle to an image object. // // Returns the bitmap. FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV FPDFImageObj_GetBitmap(FPDF_PAGEOBJECT image_object); // Experimental API. // Get a bitmap rasterization of |image_object| that takes the image mask and // image matrix into account. To render correctly, the caller must provide the // |document| associated with |image_object|. If there is a |page| associated // with |image_object|, the caller should provide that as well. // The returned bitmap will be owned by the caller, and FPDFBitmap_Destroy() // must be called on the returned bitmap when it is no longer needed. // // document - handle to a document associated with |image_object|. // page - handle to an optional page associated with |image_object|. // image_object - handle to an image object. // // Returns the bitmap or NULL on failure. FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV FPDFImageObj_GetRenderedBitmap(FPDF_DOCUMENT document, FPDF_PAGE page, FPDF_PAGEOBJECT image_object); // Get the decoded image data of |image_object|. The decoded data is the // uncompressed image data, i.e. the raw image data after having all filters // applied. |buffer| is only modified if |buflen| is longer than the length of // the decoded image data. // // image_object - handle to an image object. // buffer - buffer for holding the decoded image data. // buflen - length of the buffer in bytes. // // Returns the length of the decoded image data. FPDF_EXPORT unsigned long FPDF_CALLCONV FPDFImageObj_GetImageDataDecoded(FPDF_PAGEOBJECT image_object, void* buffer, unsigned long buflen); // Get the raw image data of |image_object|. The raw data is the image data as // stored in the PDF without applying any filters. |buffer| is only modified if // |buflen| is longer than the length of the raw image data. // // image_object - handle to an image object. // buffer - buffer for holding the raw image data. // buflen - length of the buffer in bytes. // // Returns the length of the raw image data. FPDF_EXPORT unsigned long FPDF_CALLCONV FPDFImageObj_GetImageDataRaw(FPDF_PAGEOBJECT image_object, void* buffer, unsigned long buflen); // Get the number of filters (i.e. decoders) of the image in |image_object|. // // image_object - handle to an image object. // // Returns the number of |image_object|'s filters. FPDF_EXPORT int FPDF_CALLCONV FPDFImageObj_GetImageFilterCount(FPDF_PAGEOBJECT image_object); // Get the filter at |index| of |image_object|'s list of filters. Note that the // filters need to be applied in order, i.e. the first filter should be applied // first, then the second, etc. |buffer| is only modified if |buflen| is longer // than the length of the filter string. // // image_object - handle to an image object. // index - the index of the filter requested. // buffer - buffer for holding filter string, encoded in UTF-8. // buflen - length of the buffer. // // Returns the length of the filter string. FPDF_EXPORT unsigned long FPDF_CALLCONV FPDFImageObj_GetImageFilter(FPDF_PAGEOBJECT image_object, int index, void* buffer, unsigned long buflen); // Get the image metadata of |image_object|, including dimension, DPI, bits per // pixel, and colorspace. If the |image_object| is not an image object or if it // does not have an image, then the return value will be false. Otherwise, // failure to retrieve any specific parameter would result in its value being 0. // // image_object - handle to an image object. // page - handle to the page that |image_object| is on. Required for // retrieving the image's bits per pixel and colorspace. // metadata - receives the image metadata; must not be NULL. // // Returns true if successful. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_GetImageMetadata(FPDF_PAGEOBJECT image_object, FPDF_PAGE page, FPDF_IMAGEOBJ_METADATA* metadata); // Experimental API. // Get the image size in pixels. Faster method to get only image size. // // image_object - handle to an image object. // width - receives the image width in pixels; must not be NULL. // height - receives the image height in pixels; must not be NULL. // // Returns true if successful. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFImageObj_GetImagePixelSize(FPDF_PAGEOBJECT image_object, unsigned int* width, unsigned int* height); // Create a new path object at an initial position. // // x - initial horizontal position. // y - initial vertical position. // // Returns a handle to a new path object. FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewPath(float x, float y); // Create a closed path consisting of a rectangle. // // x - horizontal position for the left boundary of the rectangle. // y - vertical position for the bottom boundary of the rectangle. // w - width of the rectangle. // h - height of the rectangle. // // Returns a handle to the new path object. FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateNewRect(float x, float y, float w, float h); // Get the bounding box of |page_object|. // // page_object - handle to a page object. // left - pointer where the left coordinate will be stored // bottom - pointer where the bottom coordinate will be stored // right - pointer where the right coordinate will be stored // top - pointer where the top coordinate will be stored // // On success, returns TRUE and fills in the 4 coordinates. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetBounds(FPDF_PAGEOBJECT page_object, float* left, float* bottom, float* right, float* top); // Experimental API. // Get the quad points that bounds |page_object|. // // page_object - handle to a page object. // quad_points - pointer where the quadrilateral points will be stored. // // On success, returns TRUE and fills in |quad_points|. // // Similar to FPDFPageObj_GetBounds(), this returns the bounds of a page // object. When the object is rotated by a non-multiple of 90 degrees, this API // returns a tighter bound that cannot be represented with just the 4 sides of // a rectangle. // // Currently only works the following |page_object| types: FPDF_PAGEOBJ_TEXT and // FPDF_PAGEOBJ_IMAGE. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetRotatedBounds(FPDF_PAGEOBJECT page_object, FS_QUADPOINTSF* quad_points); // Set the blend mode of |page_object|. // // page_object - handle to a page object. // blend_mode - string containing the blend mode. // // Blend mode can be one of following: Color, ColorBurn, ColorDodge, Darken, // Difference, Exclusion, HardLight, Hue, Lighten, Luminosity, Multiply, Normal, // Overlay, Saturation, Screen, SoftLight FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object, FPDF_BYTESTRING blend_mode); // Set the stroke RGBA of a page object. Range of values: 0 - 255. // // page_object - the handle to the page object. // R - the red component for the object's stroke color. // G - the green component for the object's stroke color. // B - the blue component for the object's stroke color. // A - the stroke alpha for the object. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetStrokeColor(FPDF_PAGEOBJECT page_object, unsigned int R, unsigned int G, unsigned int B, unsigned int A); // Get the stroke RGBA of a page object. Range of values: 0 - 255. // // page_object - the handle to the page object. // R - the red component of the path stroke color. // G - the green component of the object's stroke color. // B - the blue component of the object's stroke color. // A - the stroke alpha of the object. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetStrokeColor(FPDF_PAGEOBJECT page_object, unsigned int* R, unsigned int* G, unsigned int* B, unsigned int* A); // Set the stroke width of a page object. // // path - the handle to the page object. // width - the width of the stroke. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetStrokeWidth(FPDF_PAGEOBJECT page_object, float width); // Get the stroke width of a page object. // // path - the handle to the page object. // width - the width of the stroke. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetStrokeWidth(FPDF_PAGEOBJECT page_object, float* width); // Get the line join of |page_object|. // // page_object - handle to a page object. // // Returns the line join, or -1 on failure. // Line join can be one of following: FPDF_LINEJOIN_MITER, FPDF_LINEJOIN_ROUND, // FPDF_LINEJOIN_BEVEL FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetLineJoin(FPDF_PAGEOBJECT page_object); // Set the line join of |page_object|. // // page_object - handle to a page object. // line_join - line join // // Line join can be one of following: FPDF_LINEJOIN_MITER, FPDF_LINEJOIN_ROUND, // FPDF_LINEJOIN_BEVEL FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetLineJoin(FPDF_PAGEOBJECT page_object, int line_join); // Get the line cap of |page_object|. // // page_object - handle to a page object. // // Returns the line cap, or -1 on failure. // Line cap can be one of following: FPDF_LINECAP_BUTT, FPDF_LINECAP_ROUND, // FPDF_LINECAP_PROJECTING_SQUARE FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetLineCap(FPDF_PAGEOBJECT page_object); // Set the line cap of |page_object|. // // page_object - handle to a page object. // line_cap - line cap // // Line cap can be one of following: FPDF_LINECAP_BUTT, FPDF_LINECAP_ROUND, // FPDF_LINECAP_PROJECTING_SQUARE FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetLineCap(FPDF_PAGEOBJECT page_object, int line_cap); // Set the fill RGBA of a page object. Range of values: 0 - 255. // // page_object - the handle to the page object. // R - the red component for the object's fill color. // G - the green component for the object's fill color. // B - the blue component for the object's fill color. // A - the fill alpha for the object. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object, unsigned int R, unsigned int G, unsigned int B, unsigned int A); // Get the fill RGBA of a page object. Range of values: 0 - 255. // // page_object - the handle to the page object. // R - the red component of the object's fill color. // G - the green component of the object's fill color. // B - the blue component of the object's fill color. // A - the fill alpha of the object. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetFillColor(FPDF_PAGEOBJECT page_object, unsigned int* R, unsigned int* G, unsigned int* B, unsigned int* A); // Experimental API. // Get the line dash |phase| of |page_object|. // // page_object - handle to a page object. // phase - pointer where the dashing phase will be stored. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetDashPhase(FPDF_PAGEOBJECT page_object, float* phase); // Experimental API. // Set the line dash phase of |page_object|. // // page_object - handle to a page object. // phase - line dash phase. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetDashPhase(FPDF_PAGEOBJECT page_object, float phase); // Experimental API. // Get the line dash array of |page_object|. // // page_object - handle to a page object. // // Returns the line dash array size or -1 on failure. FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetDashCount(FPDF_PAGEOBJECT page_object); // Experimental API. // Get the line dash array of |page_object|. // // page_object - handle to a page object. // dash_array - pointer where the dashing array will be stored. // dash_count - number of elements in |dash_array|. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_GetDashArray(FPDF_PAGEOBJECT page_object, float* dash_array, size_t dash_count); // Experimental API. // Set the line dash array of |page_object|. // // page_object - handle to a page object. // dash_array - the dash array. // dash_count - number of elements in |dash_array|. // phase - the line dash phase. // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPageObj_SetDashArray(FPDF_PAGEOBJECT page_object, const float* dash_array, size_t dash_count, float phase); // Get number of segments inside |path|. // // path - handle to a path. // // A segment is a command, created by e.g. FPDFPath_MoveTo(), // FPDFPath_LineTo() or FPDFPath_BezierTo(). // // Returns the number of objects in |path| or -1 on failure. FPDF_EXPORT int FPDF_CALLCONV FPDFPath_CountSegments(FPDF_PAGEOBJECT path); // Get segment in |path| at |index|. // // path - handle to a path. // index - the index of a segment. // // Returns the handle to the segment, or NULL on faiure. FPDF_EXPORT FPDF_PATHSEGMENT FPDF_CALLCONV FPDFPath_GetPathSegment(FPDF_PAGEOBJECT path, int index); // Get coordinates of |segment|. // // segment - handle to a segment. // x - the horizontal position of the segment. // y - the vertical position of the segment. // // Returns TRUE on success, otherwise |x| and |y| is not set. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPathSegment_GetPoint(FPDF_PATHSEGMENT segment, float* x, float* y); // Get type of |segment|. // // segment - handle to a segment. // // Returns one of the FPDF_SEGMENT_* values on success, // FPDF_SEGMENT_UNKNOWN on error. FPDF_EXPORT int FPDF_CALLCONV FPDFPathSegment_GetType(FPDF_PATHSEGMENT segment); // Gets if the |segment| closes the current subpath of a given path. // // segment - handle to a segment. // // Returns close flag for non-NULL segment, FALSE otherwise. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPathSegment_GetClose(FPDF_PATHSEGMENT segment); // Move a path's current point. // // path - the handle to the path object. // x - the horizontal position of the new current point. // y - the vertical position of the new current point. // // Note that no line will be created between the previous current point and the // new one. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_MoveTo(FPDF_PAGEOBJECT path, float x, float y); // Add a line between the current point and a new point in the path. // // path - the handle to the path object. // x - the horizontal position of the new point. // y - the vertical position of the new point. // // The path's current point is changed to (x, y). // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_LineTo(FPDF_PAGEOBJECT path, float x, float y); // Add a cubic Bezier curve to the given path, starting at the current point. // // path - the handle to the path object. // x1 - the horizontal position of the first Bezier control point. // y1 - the vertical position of the first Bezier control point. // x2 - the horizontal position of the second Bezier control point. // y2 - the vertical position of the second Bezier control point. // x3 - the horizontal position of the ending point of the Bezier curve. // y3 - the vertical position of the ending point of the Bezier curve. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_BezierTo(FPDF_PAGEOBJECT path, float x1, float y1, float x2, float y2, float x3, float y3); // Close the current subpath of a given path. // // path - the handle to the path object. // // This will add a line between the current point and the initial point of the // subpath, thus terminating the current subpath. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_Close(FPDF_PAGEOBJECT path); // Set the drawing mode of a path. // // path - the handle to the path object. // fillmode - the filling mode to be set: one of the FPDF_FILLMODE_* flags. // stroke - a boolean specifying if the path should be stroked or not. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_SetDrawMode(FPDF_PAGEOBJECT path, int fillmode, FPDF_BOOL stroke); // Get the drawing mode of a path. // // path - the handle to the path object. // fillmode - the filling mode of the path: one of the FPDF_FILLMODE_* flags. // stroke - a boolean specifying if the path is stroked or not. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPath_GetDrawMode(FPDF_PAGEOBJECT path, int* fillmode, FPDF_BOOL* stroke); // Create a new text object using one of the standard PDF fonts. // // document - handle to the document. // font - string containing the font name, without spaces. // font_size - the font size for the new text object. // // Returns a handle to a new text object, or NULL on failure FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_NewTextObj(FPDF_DOCUMENT document, FPDF_BYTESTRING font, float font_size); // Set the text for a text object. If it had text, it will be replaced. // // text_object - handle to the text object. // text - the UTF-16LE encoded string containing the text to be added. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFText_SetText(FPDF_PAGEOBJECT text_object, FPDF_WIDESTRING text); // Experimental API. // Set the text using charcodes for a text object. If it had text, it will be // replaced. // // text_object - handle to the text object. // charcodes - pointer to an array of charcodes to be added. // count - number of elements in |charcodes|. // // Returns TRUE on success FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFText_SetCharcodes(FPDF_PAGEOBJECT text_object, const uint32_t* charcodes, size_t count); // Returns a font object loaded from a stream of data. The font is loaded // into the document. Various font data structures, such as the ToUnicode data, // are auto-generated based on the inputs. // // document - handle to the document. // data - the stream of font data, which will be copied by the font object. // size - the size of the font data, in bytes. // font_type - FPDF_FONT_TYPE1 or FPDF_FONT_TRUETYPE depending on the font type. // cid - a boolean specifying if the font is a CID font or not. // // The loaded font can be closed using FPDFFont_Close(). // // Returns NULL on failure FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFText_LoadFont(FPDF_DOCUMENT document, const uint8_t* data, uint32_t size, int font_type, FPDF_BOOL cid); // Experimental API. // Loads one of the standard 14 fonts per PDF spec 1.7 page 416. The preferred // way of using font style is using a dash to separate the name from the style, // for example 'Helvetica-BoldItalic'. // // document - handle to the document. // font - string containing the font name, without spaces. // // The loaded font can be closed using FPDFFont_Close(). // // Returns NULL on failure. FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFText_LoadStandardFont(FPDF_DOCUMENT document, FPDF_BYTESTRING font); // Experimental API. // Returns a font object loaded from a stream of data for a type 2 CID font. The // font is loaded into the document. Unlike FPDFText_LoadFont(), the ToUnicode // data and the CIDToGIDMap data are caller provided, instead of auto-generated. // // document - handle to the document. // font_data - the stream of font data, which will be copied by // the font object. // font_data_size - the size of the font data, in bytes. // to_unicode_cmap - the ToUnicode data. // cid_to_gid_map_data - the stream of CIDToGIDMap data. // cid_to_gid_map_data_size - the size of the CIDToGIDMap data, in bytes. // // The loaded font can be closed using FPDFFont_Close(). // // Returns NULL on failure. FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFText_LoadCidType2Font(FPDF_DOCUMENT document, const uint8_t* font_data, uint32_t font_data_size, FPDF_BYTESTRING to_unicode_cmap, const uint8_t* cid_to_gid_map_data, uint32_t cid_to_gid_map_data_size); // Get the font size of a text object. // // text - handle to a text. // size - pointer to the font size of the text object, measured in points // (about 1/72 inch) // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFTextObj_GetFontSize(FPDF_PAGEOBJECT text, float* size); // Close a loaded PDF font. // // font - Handle to the loaded font. FPDF_EXPORT void FPDF_CALLCONV FPDFFont_Close(FPDF_FONT font); // Create a new text object using a loaded font. // // document - handle to the document. // font - handle to the font object. // font_size - the font size for the new text object. // // Returns a handle to a new text object, or NULL on failure FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPageObj_CreateTextObj(FPDF_DOCUMENT document, FPDF_FONT font, float font_size); // Get the text rendering mode of a text object. // // text - the handle to the text object. // // Returns one of the known FPDF_TEXT_RENDERMODE enum values on success, // FPDF_TEXTRENDERMODE_UNKNOWN on error. FPDF_EXPORT FPDF_TEXT_RENDERMODE FPDF_CALLCONV FPDFTextObj_GetTextRenderMode(FPDF_PAGEOBJECT text); // Experimental API. // Set the text rendering mode of a text object. // // text - the handle to the text object. // render_mode - the FPDF_TEXT_RENDERMODE enum value to be set (cannot set to // FPDF_TEXTRENDERMODE_UNKNOWN). // // Returns TRUE on success. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFTextObj_SetTextRenderMode(FPDF_PAGEOBJECT text, FPDF_TEXT_RENDERMODE render_mode); // Get the text of a text object. // // text_object - the handle to the text object. // text_page - the handle to the text page. // buffer - the address of a buffer that receives the text. // length - the size, in bytes, of |buffer|. // // Returns the number of bytes in the text (including the trailing NUL // character) on success, 0 on error. // // Regardless of the platform, the |buffer| is always in UTF-16LE encoding. // If |length| is less than the returned length, or |buffer| is NULL, |buffer| // will not be modified. FPDF_EXPORT unsigned long FPDF_CALLCONV FPDFTextObj_GetText(FPDF_PAGEOBJECT text_object, FPDF_TEXTPAGE text_page, FPDF_WCHAR* buffer, unsigned long length); // Experimental API. // Get a bitmap rasterization of |text_object|. To render correctly, the caller // must provide the |document| associated with |text_object|. If there is a // |page| associated with |text_object|, the caller should provide that as well. // The returned bitmap will be owned by the caller, and FPDFBitmap_Destroy() // must be called on the returned bitmap when it is no longer needed. // // document - handle to a document associated with |text_object|. // page - handle to an optional page associated with |text_object|. // text_object - handle to a text object. // scale - the scaling factor, which must be greater than 0. // // Returns the bitmap or NULL on failure. FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV FPDFTextObj_GetRenderedBitmap(FPDF_DOCUMENT document, FPDF_PAGE page, FPDF_PAGEOBJECT text_object, float scale); // Experimental API. // Get the font of a text object. // // text - the handle to the text object. // // Returns a handle to the font object held by |text| which retains ownership. FPDF_EXPORT FPDF_FONT FPDF_CALLCONV FPDFTextObj_GetFont(FPDF_PAGEOBJECT text); // Experimental API. // Get the family name of a font. // // font - the handle to the font object. // buffer - the address of a buffer that receives the font name. // length - the size, in bytes, of |buffer|. // // Returns the number of bytes in the family name (including the trailing NUL // character) on success, 0 on error. // // Regardless of the platform, the |buffer| is always in UTF-8 encoding. // If |length| is less than the returned length, or |buffer| is NULL, |buffer| // will not be modified. FPDF_EXPORT unsigned long FPDF_CALLCONV FPDFFont_GetFamilyName(FPDF_FONT font, char* buffer, unsigned long length); // Experimental API. // Get the decoded data from the |font| object. // // font - The handle to the font object. (Required) // buffer - The address of a buffer that receives the font data. // buflen - Length of the buffer. // out_buflen - Pointer to variable that will receive the minimum buffer size // to contain the font data. Not filled if the return value is // FALSE. (Required) // // Returns TRUE on success. In which case, |out_buflen| will be filled, and // |buffer| will be filled if it is large enough. Returns FALSE if any of the // required parameters are null. // // The decoded data is the uncompressed font data. i.e. the raw font data after // having all stream filters applied, when the data is embedded. // // If the font is not embedded, then this API will instead return the data for // the substitution font it is using. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFFont_GetFontData(FPDF_FONT font, uint8_t* buffer, size_t buflen, size_t* out_buflen); // Experimental API. // Get whether |font| is embedded or not. // // font - the handle to the font object. // // Returns 1 if the font is embedded, 0 if it not, and -1 on failure. FPDF_EXPORT int FPDF_CALLCONV FPDFFont_GetIsEmbedded(FPDF_FONT font); // Experimental API. // Get the descriptor flags of a font. // // font - the handle to the font object. // // Returns the bit flags specifying various characteristics of the font as // defined in ISO 32000-1:2008, table 123, -1 on failure. FPDF_EXPORT int FPDF_CALLCONV FPDFFont_GetFlags(FPDF_FONT font); // Experimental API. // Get the font weight of a font. // // font - the handle to the font object. // // Returns the font weight, -1 on failure. // Typical values are 400 (normal) and 700 (bold). FPDF_EXPORT int FPDF_CALLCONV FPDFFont_GetWeight(FPDF_FONT font); // Experimental API. // Get the italic angle of a font. // // font - the handle to the font object. // angle - pointer where the italic angle will be stored // // The italic angle of a |font| is defined as degrees counterclockwise // from vertical. For a font that slopes to the right, this will be negative. // // Returns TRUE on success; |angle| unmodified on failure. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFFont_GetItalicAngle(FPDF_FONT font, int* angle); // Experimental API. // Get ascent distance of a font. // // font - the handle to the font object. // font_size - the size of the |font|. // ascent - pointer where the font ascent will be stored // // Ascent is the maximum distance in points above the baseline reached by the // glyphs of the |font|. One point is 1/72 inch (around 0.3528 mm). // // Returns TRUE on success; |ascent| unmodified on failure. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFFont_GetAscent(FPDF_FONT font, float font_size, float* ascent); // Experimental API. // Get descent distance of a font. // // font - the handle to the font object. // font_size - the size of the |font|. // descent - pointer where the font descent will be stored // // Descent is the maximum distance in points below the baseline reached by the // glyphs of the |font|. One point is 1/72 inch (around 0.3528 mm). // // Returns TRUE on success; |descent| unmodified on failure. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFFont_GetDescent(FPDF_FONT font, float font_size, float* descent); // Experimental API. // Get the width of a glyph in a font. // // font - the handle to the font object. // glyph - the glyph. // font_size - the size of the font. // width - pointer where the glyph width will be stored // // Glyph width is the distance from the end of the prior glyph to the next // glyph. This will be the vertical distance for vertical writing. // // Returns TRUE on success; |width| unmodified on failure. FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFFont_GetGlyphWidth(FPDF_FONT font, uint32_t glyph, float font_size, float* width); // Experimental API. // Get the glyphpath describing how to draw a font glyph. // // font - the handle to the font object. // glyph - the glyph being drawn. // font_size - the size of the font. // // Returns the handle to the segment, or NULL on faiure. FPDF_EXPORT FPDF_GLYPHPATH FPDF_CALLCONV FPDFFont_GetGlyphPath(FPDF_FONT font, uint32_t glyph, float font_size); // Experimental API. // Get number of segments inside glyphpath. // // glyphpath - handle to a glyph path. // // Returns the number of objects in |glyphpath| or -1 on failure. FPDF_EXPORT int FPDF_CALLCONV FPDFGlyphPath_CountGlyphSegments(FPDF_GLYPHPATH glyphpath); // Experimental API. // Get segment in glyphpath at index. // // glyphpath - handle to a glyph path. // index - the index of a segment. // // Returns the handle to the segment, or NULL on faiure. FPDF_EXPORT FPDF_PATHSEGMENT FPDF_CALLCONV FPDFGlyphPath_GetGlyphPathSegment(FPDF_GLYPHPATH glyphpath, int index); // Get number of page objects inside |form_object|. // // form_object - handle to a form object. // // Returns the number of objects in |form_object| on success, -1 on error. FPDF_EXPORT int FPDF_CALLCONV FPDFFormObj_CountObjects(FPDF_PAGEOBJECT form_object); // Get page object in |form_object| at |index|. // // form_object - handle to a form object. // index - the 0-based index of a page object. // // Returns the handle to the page object, or NULL on error. FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index); #ifdef __cplusplus } // extern "C" #endif // __cplusplus #endif // PUBLIC_FPDF_EDIT_H_