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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/fpdfdoc/fpdf_doc.h"
CPDF_FormControl(CPDF_FormField * pField,CPDF_Dictionary * pWidgetDict)8 CPDF_FormControl::CPDF_FormControl(CPDF_FormField* pField, CPDF_Dictionary* pWidgetDict)
9 {
10     m_pField = pField;
11     m_pWidgetDict = pWidgetDict;
12     m_pForm = m_pField->m_pForm;
13 }
GetRect()14 CFX_FloatRect CPDF_FormControl::GetRect()
15 {
16     return m_pWidgetDict->GetRect("Rect");
17 }
GetOnStateName()18 CFX_ByteString CPDF_FormControl::GetOnStateName()
19 {
20     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
21     CFX_ByteString csOn;
22     CPDF_Dictionary* pAP = m_pWidgetDict->GetDict("AP");
23     if (pAP == NULL) {
24         return csOn;
25     }
26     CPDF_Dictionary* pN = pAP->GetDict("N");
27     if (pN == NULL) {
28         return csOn;
29     }
30     FX_POSITION pos = pN->GetStartPos();
31     while (pos) {
32         pN->GetNextElement(pos, csOn);
33         if (csOn != "Off") {
34             return csOn;
35         }
36     }
37     return CFX_ByteString();
38 }
SetOnStateName(const CFX_ByteString & csOn)39 void CPDF_FormControl::SetOnStateName(const CFX_ByteString& csOn)
40 {
41     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
42     CFX_ByteString csValue = csOn;
43     if (csValue.IsEmpty()) {
44         csValue = "Yes";
45     }
46     if (csValue == "Off") {
47         csValue = "Yes";
48     }
49     CFX_ByteString csAS = m_pWidgetDict->GetString("AS", "Off");
50     if (csAS != "Off") {
51         m_pWidgetDict->SetAtName("AS", csValue);
52     }
53     CPDF_Dictionary* pAP = m_pWidgetDict->GetDict("AP");
54     if (pAP == NULL) {
55         return;
56     }
57     FX_POSITION pos1 = pAP->GetStartPos();
58     while (pos1) {
59         CFX_ByteString csKey1;
60         CPDF_Object* pObj1 = pAP->GetNextElement(pos1, csKey1);
61         if (pObj1 == NULL) {
62             continue;
63         }
64         CPDF_Object* pObjDirect1 = pObj1->GetDirect();
65         if (pObjDirect1->GetType() != PDFOBJ_DICTIONARY) {
66             continue;
67         }
68         CPDF_Dictionary* pSubDict = (CPDF_Dictionary*)pObjDirect1;
69         FX_POSITION pos2 = pSubDict->GetStartPos();
70         while (pos2) {
71             CFX_ByteString csKey2;
72             CPDF_Object* pObj2 = pSubDict->GetNextElement(pos2, csKey2);
73             if (pObj2 == NULL) {
74                 continue;
75             }
76             if (csKey2 != "Off") {
77                 pSubDict->ReplaceKey(csKey2, csValue);
78                 break;
79             }
80         }
81     }
82 }
GetCheckedAPState()83 CFX_ByteString CPDF_FormControl::GetCheckedAPState()
84 {
85     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
86     CFX_ByteString csOn = GetOnStateName();
87     if (GetType() == CPDF_FormField::RadioButton || GetType() == CPDF_FormField::CheckBox) {
88         CPDF_Object* pOpt = FPDF_GetFieldAttr(m_pField->m_pDict, "Opt");
89         if (pOpt != NULL && pOpt->GetType() == PDFOBJ_ARRAY) {
90             int iIndex = m_pField->GetControlIndex(this);
91             csOn.Format("%d", iIndex);
92         }
93     }
94     if (csOn.IsEmpty()) {
95         csOn = "Yes";
96     }
97     return csOn;
98 }
GetExportValue()99 CFX_WideString CPDF_FormControl::GetExportValue()
100 {
101     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
102     CFX_ByteString csOn = GetOnStateName();
103     if (GetType() == CPDF_FormField::RadioButton || GetType() == CPDF_FormField::CheckBox) {
104         CPDF_Object* pOpt = FPDF_GetFieldAttr(m_pField->m_pDict, "Opt");
105         if (pOpt != NULL && pOpt->GetType() == PDFOBJ_ARRAY) {
106             int iIndex = m_pField->GetControlIndex(this);
107             csOn = ((CPDF_Array*)pOpt)->GetString(iIndex);
108         }
109     }
110     if (csOn.IsEmpty()) {
111         csOn = "Yes";
112     }
113     CFX_WideString csWOn = PDF_DecodeText(csOn);
114     return csWOn;
115 }
IsChecked()116 FX_BOOL CPDF_FormControl::IsChecked()
117 {
118     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
119     CFX_ByteString csOn = GetOnStateName();
120     CFX_ByteString csAS = m_pWidgetDict->GetString("AS");
121     return csAS == csOn;
122 }
IsDefaultChecked()123 FX_BOOL CPDF_FormControl::IsDefaultChecked()
124 {
125     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
126     CPDF_Object* pDV = FPDF_GetFieldAttr(m_pField->m_pDict, "DV");
127     if (pDV == NULL) {
128         return FALSE;
129     }
130     CFX_ByteString csDV = pDV->GetString();
131     CFX_ByteString csOn = GetOnStateName();
132     return (csDV == csOn);
133 }
CheckControl(FX_BOOL bChecked)134 void CPDF_FormControl::CheckControl(FX_BOOL bChecked)
135 {
136     ASSERT(GetType() == CPDF_FormField::CheckBox || GetType() == CPDF_FormField::RadioButton);
137     CFX_ByteString csOn = GetOnStateName();
138     CFX_ByteString csOldAS = m_pWidgetDict->GetString("AS", "Off");
139     CFX_ByteString csAS = "Off";
140     if (bChecked) {
141         csAS = csOn;
142     }
143     if (csOldAS == csAS) {
144         return;
145     }
146     m_pWidgetDict->SetAtName("AS", csAS);
147     m_pForm->m_bUpdated = TRUE;
148 }
149 CPDF_Stream* FPDFDOC_GetAnnotAP(CPDF_Dictionary* pAnnotDict, CPDF_Annot::AppearanceMode mode);
DrawControl(CFX_RenderDevice * pDevice,CFX_AffineMatrix * pMatrix,CPDF_Page * pPage,CPDF_Annot::AppearanceMode mode,const CPDF_RenderOptions * pOptions)150 void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice, CFX_AffineMatrix* pMatrix, CPDF_Page* pPage,
151                                    CPDF_Annot::AppearanceMode mode, const CPDF_RenderOptions* pOptions)
152 {
153     if (m_pWidgetDict->GetInteger("F") & ANNOTFLAG_HIDDEN) {
154         return;
155     }
156     CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode);
157     if (pStream == NULL) {
158         return;
159     }
160     CFX_FloatRect form_bbox = pStream->GetDict()->GetRect("BBox");
161     CFX_AffineMatrix form_matrix = pStream->GetDict()->GetMatrix("Matrix");
162     form_matrix.TransformRect(form_bbox);
163     CFX_FloatRect arect = m_pWidgetDict->GetRect("Rect");
164     CFX_AffineMatrix matrix;
165     matrix.MatchRect(arect, form_bbox);
166     matrix.Concat(*pMatrix);
167     CPDF_Form form(m_pField->m_pForm->m_pDocument, m_pField->m_pForm->m_pFormDict->GetDict("DR"), pStream);
168     form.ParseContent(NULL, NULL, NULL, NULL);
169     CPDF_RenderContext context;
170     context.Create(pPage);
171     context.DrawObjectList(pDevice, &form, &matrix, pOptions);
172 }
173 const FX_CHAR* g_sHighlightingMode[] = {"N", "I", "O", "P", "T", ""};
GetHighlightingMode()174 CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode()
175 {
176     if (m_pWidgetDict == NULL) {
177         return Invert;
178     }
179     CFX_ByteString csH = m_pWidgetDict->GetString("H", "I");
180     int i = 0;
181     while (g_sHighlightingMode[i][0] != '\0') {
182         if (csH.Equal(g_sHighlightingMode[i])) {
183             return (HighlightingMode)i;
184         }
185         i ++;
186     }
187     return Invert;
188 }
GetMK(FX_BOOL bCreate)189 CPDF_ApSettings CPDF_FormControl::GetMK(FX_BOOL bCreate)
190 {
191     if (!m_pWidgetDict) {
192         return NULL;
193     }
194     CPDF_ApSettings mk = m_pWidgetDict->GetDict(FX_BSTRC("MK"));
195     if (!mk && bCreate) {
196         mk = CPDF_Dictionary::Create();
197         if (mk == NULL) {
198             return NULL;
199         }
200         m_pWidgetDict->SetAt(FX_BSTRC("MK"), mk);
201     }
202     return mk;
203 }
HasMKEntry(CFX_ByteString csEntry)204 FX_BOOL CPDF_FormControl::HasMKEntry(CFX_ByteString csEntry)
205 {
206     CPDF_ApSettings mk = GetMK(FALSE);
207     return mk.HasMKEntry(csEntry);
208 }
GetRotation()209 int CPDF_FormControl::GetRotation()
210 {
211     CPDF_ApSettings mk = GetMK(FALSE);
212     return mk.GetRotation();
213 }
GetColor(int & iColorType,CFX_ByteString csEntry)214 FX_ARGB CPDF_FormControl::GetColor(int& iColorType, CFX_ByteString csEntry)
215 {
216     CPDF_ApSettings mk = GetMK(FALSE);
217     return mk.GetColor(iColorType, csEntry);
218 }
GetOriginalColor(int index,CFX_ByteString csEntry)219 FX_FLOAT CPDF_FormControl::GetOriginalColor(int index, CFX_ByteString csEntry)
220 {
221     CPDF_ApSettings mk = GetMK(FALSE);
222     return mk.GetOriginalColor(index, csEntry);
223 }
GetOriginalColor(int & iColorType,FX_FLOAT fc[4],CFX_ByteString csEntry)224 void CPDF_FormControl::GetOriginalColor(int& iColorType, FX_FLOAT fc[4], CFX_ByteString csEntry)
225 {
226     CPDF_ApSettings mk = GetMK(FALSE);
227     mk.GetOriginalColor(iColorType, fc, csEntry);
228 }
GetCaption(CFX_ByteString csEntry)229 CFX_WideString CPDF_FormControl::GetCaption(CFX_ByteString csEntry)
230 {
231     CPDF_ApSettings mk = GetMK(FALSE);
232     return mk.GetCaption(csEntry);
233 }
GetIcon(CFX_ByteString csEntry)234 CPDF_Stream* CPDF_FormControl::GetIcon(CFX_ByteString csEntry)
235 {
236     CPDF_ApSettings mk = GetMK(FALSE);
237     return mk.GetIcon(csEntry);
238 }
GetIconFit()239 CPDF_IconFit CPDF_FormControl::GetIconFit()
240 {
241     CPDF_ApSettings mk = GetMK(FALSE);
242     return mk.GetIconFit();
243 }
GetTextPosition()244 int CPDF_FormControl::GetTextPosition()
245 {
246     CPDF_ApSettings mk = GetMK(FALSE);
247     return mk.GetTextPosition();
248 }
GetAction()249 CPDF_Action CPDF_FormControl::GetAction()
250 {
251     if (m_pWidgetDict == NULL) {
252         return NULL;
253     }
254     if (m_pWidgetDict->KeyExist("A")) {
255         return m_pWidgetDict->GetDict("A");
256     } else {
257         CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "A");
258         if (pObj == NULL) {
259             return NULL;
260         }
261         return pObj->GetDict();
262     }
263 }
GetAdditionalAction()264 CPDF_AAction CPDF_FormControl::GetAdditionalAction()
265 {
266     if (m_pWidgetDict == NULL) {
267         return NULL;
268     }
269     if (m_pWidgetDict->KeyExist("AA")) {
270         return m_pWidgetDict->GetDict("AA");
271     } else {
272         return m_pField->GetAdditionalAction();
273     }
274 }
GetDefaultAppearance()275 CPDF_DefaultAppearance CPDF_FormControl::GetDefaultAppearance()
276 {
277     if (m_pWidgetDict == NULL) {
278         return CFX_ByteString();
279     }
280     if (m_pWidgetDict->KeyExist("DA")) {
281         return m_pWidgetDict->GetString("DA");
282     } else {
283         CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "DA");
284         if (pObj == NULL) {
285             return m_pField->m_pForm->GetDefaultAppearance();
286         }
287         return pObj->GetString();
288     }
289 }
GetDefaultControlFont()290 CPDF_Font* CPDF_FormControl::GetDefaultControlFont()
291 {
292     CPDF_DefaultAppearance cDA = GetDefaultAppearance();
293     CFX_ByteString csFontNameTag;
294     FX_FLOAT fFontSize;
295     cDA.GetFont(csFontNameTag, fFontSize);
296     if (csFontNameTag.IsEmpty()) {
297         return NULL;
298     }
299     CPDF_Object* pObj = FPDF_GetFieldAttr(m_pWidgetDict, "DR");
300     if (pObj != NULL && pObj->GetType() == PDFOBJ_DICTIONARY) {
301         CPDF_Dictionary* pFonts = ((CPDF_Dictionary*)pObj)->GetDict("Font");
302         if (pFonts != NULL) {
303             CPDF_Dictionary *pElement = pFonts->GetDict(csFontNameTag);
304             CPDF_Font *pFont = m_pField->m_pForm->m_pDocument->LoadFont(pElement);
305             if (pFont != NULL) {
306                 return pFont;
307             }
308         }
309     }
310     CPDF_Font *pFont = m_pField->m_pForm->GetFormFont(csFontNameTag);
311     if (pFont != NULL) {
312         return pFont;
313     }
314     CPDF_Dictionary *pPageDict = m_pWidgetDict->GetDict("P");
315     pObj = FPDF_GetFieldAttr(pPageDict, "Resources");
316     if (pObj != NULL && pObj->GetType() == PDFOBJ_DICTIONARY) {
317         CPDF_Dictionary* pFonts = ((CPDF_Dictionary*)pObj)->GetDict("Font");
318         if (pFonts != NULL) {
319             CPDF_Dictionary *pElement = pFonts->GetDict(csFontNameTag);
320             CPDF_Font *pFont = m_pField->m_pForm->m_pDocument->LoadFont(pElement);
321             if (pFont != NULL) {
322                 return pFont;
323             }
324         }
325     }
326     return NULL;
327 }
GetControlAlignment()328 int CPDF_FormControl::GetControlAlignment()
329 {
330     if (m_pWidgetDict == NULL) {
331         return 0;
332     }
333     if (m_pWidgetDict->KeyExist("Q")) {
334         return m_pWidgetDict->GetInteger("Q", 0);
335     } else {
336         CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "Q");
337         if (pObj == NULL) {
338             return m_pField->m_pForm->GetFormAlignment();
339         }
340         return pObj->GetInteger();
341     }
342 }
HasMKEntry(FX_BSTR csEntry)343 FX_BOOL CPDF_ApSettings::HasMKEntry(FX_BSTR csEntry)
344 {
345     if (m_pDict == NULL) {
346         return FALSE;
347     }
348     return m_pDict->KeyExist(csEntry);
349 }
GetRotation()350 int CPDF_ApSettings::GetRotation()
351 {
352     if (m_pDict == NULL) {
353         return 0;
354     }
355     return m_pDict->GetInteger(FX_BSTRC("R"));
356 }
GetColor(int & iColorType,FX_BSTR csEntry)357 FX_ARGB CPDF_ApSettings::GetColor(int& iColorType, FX_BSTR csEntry)
358 {
359     iColorType = COLORTYPE_TRANSPARENT;
360     if (m_pDict == NULL) {
361         return 0;
362     }
363     FX_ARGB color = 0;
364     CPDF_Array* pEntry = m_pDict->GetArray(csEntry);
365     if (pEntry == NULL) {
366         return color;
367     }
368     FX_DWORD dwCount = pEntry->GetCount();
369     if (dwCount == 1) {
370         iColorType = COLORTYPE_GRAY;
371         FX_FLOAT g = pEntry->GetNumber(0) * 255;
372         color = ArgbEncode(255, (int)g, (int)g, (int)g);
373     } else if (dwCount == 3) {
374         iColorType = COLORTYPE_RGB;
375         FX_FLOAT r = pEntry->GetNumber(0) * 255;
376         FX_FLOAT g = pEntry->GetNumber(1) * 255;
377         FX_FLOAT b = pEntry->GetNumber(2) * 255;
378         color = ArgbEncode(255, (int)r, (int)g, (int)b);
379     } else if (dwCount == 4) {
380         iColorType = COLORTYPE_CMYK;
381         FX_FLOAT c = pEntry->GetNumber(0);
382         FX_FLOAT m = pEntry->GetNumber(1);
383         FX_FLOAT y = pEntry->GetNumber(2);
384         FX_FLOAT k = pEntry->GetNumber(3);
385         FX_FLOAT r = 1.0f - FX_MIN(1.0f, c + k);
386         FX_FLOAT g = 1.0f - FX_MIN(1.0f, m + k);
387         FX_FLOAT b = 1.0f - FX_MIN(1.0f, y + k);
388         color = ArgbEncode(255, (int)(r * 255), (int)(g * 255), (int)(b * 255));
389     }
390     return color;
391 }
GetOriginalColor(int index,FX_BSTR csEntry)392 FX_FLOAT CPDF_ApSettings::GetOriginalColor(int index, FX_BSTR csEntry)
393 {
394     if (m_pDict == NULL) {
395         return 0;
396     }
397     CPDF_Array* pEntry = m_pDict->GetArray(csEntry);
398     if (pEntry != NULL) {
399         return pEntry->GetNumber(index);
400     }
401     return 0;
402 }
GetOriginalColor(int & iColorType,FX_FLOAT fc[4],FX_BSTR csEntry)403 void CPDF_ApSettings::GetOriginalColor(int& iColorType, FX_FLOAT fc[4], FX_BSTR csEntry)
404 {
405     iColorType = COLORTYPE_TRANSPARENT;
406     for (int i = 0; i < 4; i ++) {
407         fc[i] = 0;
408     }
409     if (m_pDict == NULL) {
410         return;
411     }
412     CPDF_Array* pEntry = m_pDict->GetArray(csEntry);
413     if (pEntry == NULL) {
414         return;
415     }
416     FX_DWORD dwCount = pEntry->GetCount();
417     if (dwCount == 1) {
418         iColorType = COLORTYPE_GRAY;
419         fc[0] = pEntry->GetNumber(0);
420     } else if (dwCount == 3) {
421         iColorType = COLORTYPE_RGB;
422         fc[0] = pEntry->GetNumber(0);
423         fc[1] = pEntry->GetNumber(1);
424         fc[2] = pEntry->GetNumber(2);
425     } else if (dwCount == 4) {
426         iColorType = COLORTYPE_CMYK;
427         fc[0] = pEntry->GetNumber(0);
428         fc[1] = pEntry->GetNumber(1);
429         fc[2] = pEntry->GetNumber(2);
430         fc[3] = pEntry->GetNumber(3);
431     }
432 }
GetCaption(FX_BSTR csEntry)433 CFX_WideString CPDF_ApSettings::GetCaption(FX_BSTR csEntry)
434 {
435     CFX_WideString csCaption;
436     if (m_pDict == NULL) {
437         return csCaption;
438     }
439     return m_pDict->GetUnicodeText(csEntry);
440 }
GetIcon(FX_BSTR csEntry)441 CPDF_Stream* CPDF_ApSettings::GetIcon(FX_BSTR csEntry)
442 {
443     if (m_pDict == NULL) {
444         return NULL;
445     }
446     return m_pDict->GetStream(csEntry);
447 }
GetIconFit()448 CPDF_IconFit CPDF_ApSettings::GetIconFit()
449 {
450     if (m_pDict == NULL) {
451         return NULL;
452     }
453     return m_pDict->GetDict(FX_BSTRC("IF"));
454 }
GetTextPosition()455 int CPDF_ApSettings::GetTextPosition()
456 {
457     if (m_pDict == NULL) {
458         return TEXTPOS_CAPTION;
459     }
460     return m_pDict->GetInteger(FX_BSTRC("TP"), TEXTPOS_CAPTION);
461 }
462