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 #include "../include/fsdk_define.h"
8 #include "../include/fpdftext.h"
9
10 #ifdef _WIN32
11 #include <tchar.h>
12 #endif
13
14 // jabdelmalek: commented out to build on Linux. Not used.
15 // extern HANDLE g_hModule;
16
FPDFText_LoadPage(FPDF_PAGE page)17 DLLEXPORT FPDF_TEXTPAGE STDCALL FPDFText_LoadPage(FPDF_PAGE page)
18 {
19 if (!page) return NULL;
20 IPDF_TextPage* textpage=NULL;
21 try
22 {
23 CPDF_ViewerPreferences viewRef(((CPDF_Page*)page)->m_pDocument);
24 textpage=IPDF_TextPage::CreateTextPage((CPDF_Page*)page,viewRef.IsDirectionR2L());
25 textpage->ParseTextPage();
26 }
27 catch (...)
28 {
29 if (textpage)
30 delete textpage;
31 return NULL;
32 }
33 return textpage;
34 }
FPDFText_ClosePage(FPDF_TEXTPAGE text_page)35 DLLEXPORT void STDCALL FPDFText_ClosePage(FPDF_TEXTPAGE text_page)
36 {
37 if (text_page){
38 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
39 delete textpage;
40 text_page=NULL;
41 }
42 }
FPDFText_CountChars(FPDF_TEXTPAGE text_page)43 DLLEXPORT int STDCALL FPDFText_CountChars(FPDF_TEXTPAGE text_page)
44 {
45 if (!text_page) return -1;
46 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
47 return textpage->CountChars();
48 }
FPDFText_GetUnicode(FPDF_TEXTPAGE text_page,int index)49 DLLEXPORT unsigned int STDCALL FPDFText_GetUnicode(FPDF_TEXTPAGE text_page, int index)
50 {
51 if (!text_page) return -1;
52 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
53
54 if (index<0 || index>=textpage->CountChars()) return 0;
55
56 FPDF_CHAR_INFO charinfo;
57 textpage->GetCharInfo(index,charinfo);
58 return charinfo.m_Unicode;
59 }
FPDFText_GetFontSize(FPDF_TEXTPAGE text_page,int index)60 DLLEXPORT double STDCALL FPDFText_GetFontSize(FPDF_TEXTPAGE text_page, int index)
61 {
62 if (!text_page) return 0;
63 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
64
65 if (index<0 || index>=textpage->CountChars()) return 0;
66
67 FPDF_CHAR_INFO charinfo;
68 textpage->GetCharInfo(index,charinfo);
69 return charinfo.m_FontSize;
70 }
71
FPDFText_GetCharBox(FPDF_TEXTPAGE text_page,int index,double * left,double * right,double * bottom,double * top)72 DLLEXPORT void STDCALL FPDFText_GetCharBox(FPDF_TEXTPAGE text_page, int index,double* left,
73 double* right, double* bottom, double* top)
74 {
75 if (!text_page) return;
76 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
77
78 if (index<0 || index>=textpage->CountChars()) return ;
79 FPDF_CHAR_INFO charinfo;
80 textpage->GetCharInfo(index,charinfo);
81 *left=charinfo.m_CharBox.left;
82 *right=charinfo.m_CharBox.right;
83 *bottom=charinfo.m_CharBox.bottom;
84 *top=charinfo.m_CharBox.top;
85 }
86
87 //select
FPDFText_GetCharIndexAtPos(FPDF_TEXTPAGE text_page,double x,double y,double xTorelance,double yTorelance)88 DLLEXPORT int STDCALL FPDFText_GetCharIndexAtPos(FPDF_TEXTPAGE text_page,double x,double y,double xTorelance,double yTorelance)
89 {
90 if (!text_page) return -3;
91 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
92 return textpage->GetIndexAtPos((FX_FLOAT)x,(FX_FLOAT)y,(FX_FLOAT)xTorelance,(FX_FLOAT)yTorelance);
93 }
94
FPDFText_GetText(FPDF_TEXTPAGE text_page,int start,int count,unsigned short * result)95 DLLEXPORT int STDCALL FPDFText_GetText(FPDF_TEXTPAGE text_page,int start,int count,unsigned short* result)
96 {
97 if (!text_page) return 0;
98 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
99
100 if (start>=textpage->CountChars()) return 0;
101
102 CFX_WideString str=textpage->GetPageText(start,count);
103 if(str.GetLength()>count)
104 str = str.Left(count);
105
106 CFX_ByteString cbUTF16str = str.UTF16LE_Encode();
107 FXSYS_memcpy(result,cbUTF16str.GetBuffer(cbUTF16str.GetLength()),cbUTF16str.GetLength());
108 cbUTF16str.ReleaseBuffer(cbUTF16str.GetLength());
109
110 return cbUTF16str.GetLength()/sizeof(unsigned short);
111 }
112
FPDFText_CountRects(FPDF_TEXTPAGE text_page,int start,int count)113 DLLEXPORT int STDCALL FPDFText_CountRects(FPDF_TEXTPAGE text_page,int start,int count)
114 {
115 if (!text_page) return 0;
116 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
117 return textpage->CountRects(start,count);
118
119 }
FPDFText_GetRect(FPDF_TEXTPAGE text_page,int rect_index,double * left,double * top,double * right,double * bottom)120 DLLEXPORT void STDCALL FPDFText_GetRect(FPDF_TEXTPAGE text_page,int rect_index, double* left,double* top,
121 double* right, double* bottom)
122 {
123 if (!text_page) return;
124 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
125 CFX_FloatRect rect;
126 textpage->GetRect(rect_index,rect.left,rect.top,rect.right,rect.bottom);
127 *left=rect.left;
128 *top=rect.top;
129 *right=rect.right;
130 *bottom=rect.bottom;
131 }
132
FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,double left,double top,double right,double bottom,unsigned short * buffer,int buflen)133 DLLEXPORT int STDCALL FPDFText_GetBoundedText(FPDF_TEXTPAGE text_page,double left, double top,
134 double right, double bottom,unsigned short* buffer,int buflen)
135 {
136 if (!text_page) return 0;
137 IPDF_TextPage* textpage=(IPDF_TextPage*)text_page;
138 CFX_FloatRect rect((FX_FLOAT)left,(FX_FLOAT)bottom,(FX_FLOAT)right,(FX_FLOAT)top);
139 CFX_WideString str=textpage->GetTextByRect(rect);
140
141 if (buflen<=0 || buffer==NULL)
142 {
143 return str.GetLength();
144 }
145
146 CFX_ByteString cbUTF16Str = str.UTF16LE_Encode();
147 int len = cbUTF16Str.GetLength()/sizeof(unsigned short);
148 int size = buflen > len ? len : buflen;
149 FXSYS_memcpy(buffer,cbUTF16Str.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short));
150 cbUTF16Str.ReleaseBuffer(size*sizeof(unsigned short));
151
152 return size;
153
154 }
155
156 //Search
157 //-1 for end
FPDFText_FindStart(FPDF_TEXTPAGE text_page,FPDF_WIDESTRING findwhat,unsigned long flags,int start_index)158 DLLEXPORT FPDF_SCHHANDLE STDCALL FPDFText_FindStart(FPDF_TEXTPAGE text_page,FPDF_WIDESTRING findwhat,unsigned long flags,int start_index)
159 {
160 if (!text_page) return NULL;
161 IPDF_TextPageFind* textpageFind=NULL;
162 try
163 {
164 textpageFind=IPDF_TextPageFind::CreatePageFind((IPDF_TextPage*)text_page);
165 textpageFind->FindFirst(CFX_WideString::FromUTF16LE(findwhat),flags,start_index);
166 }
167 catch (...)
168 {
169 if (textpageFind)
170 delete textpageFind;
171 return NULL;
172 }
173 return textpageFind;
174 }
FPDFText_FindNext(FPDF_SCHHANDLE handle)175 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindNext(FPDF_SCHHANDLE handle)
176 {
177 if (!handle) return FALSE;
178 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
179 return textpageFind->FindNext();
180 }
FPDFText_FindPrev(FPDF_SCHHANDLE handle)181 DLLEXPORT FPDF_BOOL STDCALL FPDFText_FindPrev(FPDF_SCHHANDLE handle)
182 {
183 if (!handle) return FALSE;
184 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
185 return textpageFind->FindPrev();
186 }
FPDFText_GetSchResultIndex(FPDF_SCHHANDLE handle)187 DLLEXPORT int STDCALL FPDFText_GetSchResultIndex(FPDF_SCHHANDLE handle)
188 {
189 if (!handle) return 0;
190 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
191 return textpageFind->GetCurOrder();
192 }
FPDFText_GetSchCount(FPDF_SCHHANDLE handle)193 DLLEXPORT int STDCALL FPDFText_GetSchCount(FPDF_SCHHANDLE handle)
194 {
195 if (!handle) return 0;
196 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
197 return textpageFind->GetMatchedCount();
198 }
FPDFText_FindClose(FPDF_SCHHANDLE handle)199 DLLEXPORT void STDCALL FPDFText_FindClose(FPDF_SCHHANDLE handle)
200 {
201 if (!handle) return;
202 IPDF_TextPageFind* textpageFind=(IPDF_TextPageFind*)handle;
203 delete textpageFind;
204 handle=NULL;
205 }
206
207 //web link
FPDFLink_LoadWebLinks(FPDF_TEXTPAGE text_page)208 DLLEXPORT FPDF_PAGELINK STDCALL FPDFLink_LoadWebLinks(FPDF_TEXTPAGE text_page)
209 {
210 if (!text_page) return NULL;
211 IPDF_LinkExtract* pageLink=NULL;
212 try
213 {
214 pageLink=IPDF_LinkExtract::CreateLinkExtract();
215 pageLink->ExtractLinks((IPDF_TextPage*)text_page);
216 }
217 catch (...)
218 {
219 if (pageLink)
220 delete pageLink;
221 return NULL;
222 }
223 return pageLink;
224 }
FPDFLink_CountWebLinks(FPDF_PAGELINK link_page)225 DLLEXPORT int STDCALL FPDFLink_CountWebLinks(FPDF_PAGELINK link_page)
226 {
227 if (!link_page) return 0;
228 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
229 return pageLink->CountLinks();
230 }
FPDFLink_GetURL(FPDF_PAGELINK link_page,int link_index,unsigned short * buffer,int buflen)231 DLLEXPORT int STDCALL FPDFLink_GetURL(FPDF_PAGELINK link_page,int link_index, unsigned short* buffer,int buflen)
232 {
233 if (!link_page) return 0;
234 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
235 CFX_WideString url=pageLink->GetURL(link_index);
236
237 CFX_ByteString cbUTF16URL = url.UTF16LE_Encode();
238 int len= cbUTF16URL.GetLength()/sizeof(unsigned short);
239 if (buffer==NULL || buflen<=0)
240 return len;
241 int size=len<buflen ? len :buflen;
242 if (size>0)
243 {
244 FXSYS_memcpy(buffer,cbUTF16URL.GetBuffer(size*sizeof(unsigned short)),size*sizeof(unsigned short));
245 cbUTF16URL.ReleaseBuffer(size*sizeof(unsigned short));
246 }
247 return size;
248 }
FPDFLink_CountRects(FPDF_PAGELINK link_page,int link_index)249 DLLEXPORT int STDCALL FPDFLink_CountRects(FPDF_PAGELINK link_page,int link_index)
250 {
251 if (!link_page) return 0;
252 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
253 CFX_RectArray rectArray;
254 pageLink->GetRects(link_index,rectArray);
255 return rectArray.GetSize();
256 }
FPDFLink_GetRect(FPDF_PAGELINK link_page,int link_index,int rect_index,double * left,double * top,double * right,double * bottom)257 DLLEXPORT void STDCALL FPDFLink_GetRect(FPDF_PAGELINK link_page,int link_index, int rect_index, double* left,
258 double* top,double* right, double* bottom)
259 {
260 if (!link_page) return;
261 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
262 CFX_RectArray rectArray;
263 pageLink->GetRects(link_index,rectArray);
264 CFX_FloatRect rect;
265 rect=rectArray.GetAt(rect_index);
266 *left=rect.left;
267 *right=rect.right;
268 *top=rect.top;
269 *bottom=rect.bottom;
270 }
FPDFLink_CloseWebLinks(FPDF_PAGELINK link_page)271 DLLEXPORT void STDCALL FPDFLink_CloseWebLinks(FPDF_PAGELINK link_page)
272 {
273 if (!link_page) return;
274 IPDF_LinkExtract* pageLink=(IPDF_LinkExtract*)link_page;
275 delete pageLink;
276 pageLink =NULL;
277 }
278
279