1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
// Copyright 2014 PDFium Authors. All rights reserved.
// 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_TRANSFORMPAGE_H_
#define PUBLIC_FPDF_TRANSFORMPAGE_H_
// NOLINTNEXTLINE(build/include)
#include "fpdfview.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void* FPDF_PAGEARCSAVER;
typedef void* FPDF_PAGEARCLOADER;
/**
* Set "MediaBox" entry to the page dictionary.
* @param[in] page - Handle to a page.
* @param[in] left - The left of the rectangle.
* @param[in] bottom - The bottom of the rectangle.
* @param[in] right - The right of the rectangle.
* @param[in] top - The top of the rectangle.
* @retval None.
*/
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetMediaBox(FPDF_PAGE page,
float left,
float bottom,
float right,
float top);
/**
* Set "CropBox" entry to the page dictionary.
* @param[in] page - Handle to a page.
* @param[in] left - The left of the rectangle.
* @param[in] bottom - The bottom of the rectangle.
* @param[in] right - The right of the rectangle.
* @param[in] top - The top of the rectangle.
* @retval None.
*/
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetCropBox(FPDF_PAGE page,
float left,
float bottom,
float right,
float top);
/** Get "MediaBox" entry from the page dictionary.
* @param[in] page - Handle to a page.
* @param[in] left - Pointer to a double value receiving the left of the
* rectangle.
* @param[in] bottom - Pointer to a double value receiving the bottom of the
* rectangle.
* @param[in] right - Pointer to a double value receiving the right of the
* rectangle.
* @param[in] top - Pointer to a double value receiving the top of the
* rectangle.
* @retval True if success,else fail.
*/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetMediaBox(FPDF_PAGE page,
float* left,
float* bottom,
float* right,
float* top);
/** Get "CropBox" entry from the page dictionary.
* @param[in] page - Handle to a page.
* @param[in] left - Pointer to a double value receiving the left of the
* rectangle.
* @param[in] bottom - Pointer to a double value receiving the bottom of the
* rectangle.
* @param[in] right - Pointer to a double value receiving the right of the
* rectangle.
* @param[in] top - Pointer to a double value receiving the top of the
* rectangle.
* @retval True if success,else fail.
*/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetCropBox(FPDF_PAGE page,
float* left,
float* bottom,
float* right,
float* top);
/**
* Transform the whole page with a specified matrix, then clip the page content
* region.
*
* @param[in] page - A page handle.
* @param[in] matrix - The transform matrix.
* @param[in] clipRect - A rectangle page area to be clipped.
* @Note. This function will transform the whole page, and would take effect to
* all the objects in the page.
*/
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPage_TransFormWithClip(FPDF_PAGE page,
FS_MATRIX* matrix,
FS_RECTF* clipRect);
/**
* Transform (scale, rotate, shear, move) the clip path of page object.
* @param[in] page_object - Handle to a page object. Returned by
* FPDFPageObj_NewImageObj.
* @param[in] a - The coefficient "a" of the matrix.
* @param[in] b - The coefficient "b" of the matrix.
* @param[in] c - The coefficient "c" of the matrix.
* @param[in] d - The coefficient "d" of the matrix.
* @param[in] e - The coefficient "e" of the matrix.
* @param[in] f - The coefficient "f" of the matrix.
* @retval None.
*/
FPDF_EXPORT void FPDF_CALLCONV
FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
double a,
double b,
double c,
double d,
double e,
double f);
/**
* Create a new clip path, with a rectangle inserted.
*
* @param[in] left - The left of the clip box.
* @param[in] bottom - The bottom of the clip box.
* @param[in] right - The right of the clip box.
* @param[in] top - The top of the clip box.
* @retval a handle to the clip path.
*/
FPDF_EXPORT FPDF_CLIPPATH FPDF_CALLCONV FPDF_CreateClipPath(float left,
float bottom,
float right,
float top);
/**
* Destroy the clip path.
*
* @param[in] clipPath - A handle to the clip path.
* Destroy the clip path.
* @retval None.
*/
FPDF_EXPORT void FPDF_CALLCONV FPDF_DestroyClipPath(FPDF_CLIPPATH clipPath);
/**
* Clip the page content, the page content that outside the clipping region
* become invisible.
*
* @param[in] page - A page handle.
* @param[in] clipPath - A handle to the clip path.
* @Note. A clip path will be inserted before the page content stream or content
* array. In this way, the page content will be clipped
* by this clip path.
*/
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertClipPath(FPDF_PAGE page,
FPDF_CLIPPATH clipPath);
#ifdef __cplusplus
}
#endif
#endif // PUBLIC_FPDF_TRANSFORMPAGE_H_
|
