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Diffstat (limited to 'core/fpdfdoc/cpdf_formcontrol.cpp')
| -rw-r--r-- | core/fpdfdoc/cpdf_formcontrol.cpp | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/core/fpdfdoc/cpdf_formcontrol.cpp b/core/fpdfdoc/cpdf_formcontrol.cpp new file mode 100644 index 0000000000..e6c505869c --- /dev/null +++ b/core/fpdfdoc/cpdf_formcontrol.cpp @@ -0,0 +1,329 @@ +// Copyright 2016 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 + +#include "core/fpdfdoc/include/cpdf_formcontrol.h" + +#include <algorithm> + +#include "core/fpdfapi/fpdf_page/include/cpdf_form.h" +#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" +#include "core/fpdfapi/fpdf_parser/include/cpdf_document.h" +#include "core/fpdfapi/fpdf_parser/include/cpdf_stream.h" +#include "core/fpdfapi/fpdf_parser/include/fpdf_parser_decode.h" +#include "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h" +#include "core/fpdfdoc/include/cpdf_interform.h" + +namespace { + +const FX_CHAR* const g_sHighlightingMode[] = { + // Must match order of HighlightingMode enum. + "N", "I", "O", "P", "T"}; + +} // namespace + +CPDF_FormControl::CPDF_FormControl(CPDF_FormField* pField, + CPDF_Dictionary* pWidgetDict) + : m_pField(pField), + m_pWidgetDict(pWidgetDict), + m_pForm(m_pField->m_pForm) {} + +CFX_ByteString CPDF_FormControl::GetOnStateName() const { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csOn; + CPDF_Dictionary* pAP = m_pWidgetDict->GetDictBy("AP"); + if (!pAP) + return csOn; + + CPDF_Dictionary* pN = pAP->GetDictBy("N"); + if (!pN) + return csOn; + + for (const auto& it : *pN) { + if (it.first != "Off") + return it.first; + } + return CFX_ByteString(); +} + +void CPDF_FormControl::SetOnStateName(const CFX_ByteString& csOn) { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csValue = csOn; + if (csValue.IsEmpty()) + csValue = "Yes"; + else if (csValue == "Off") + csValue = "Yes"; + + CFX_ByteString csAS = m_pWidgetDict->GetStringBy("AS", "Off"); + if (csAS != "Off") + m_pWidgetDict->SetAtName("AS", csValue); + + CPDF_Dictionary* pAP = m_pWidgetDict->GetDictBy("AP"); + if (!pAP) + return; + + for (const auto& it : *pAP) { + CPDF_Object* pObj1 = it.second; + if (!pObj1) + continue; + + CPDF_Object* pObjDirect1 = pObj1->GetDirect(); + CPDF_Dictionary* pSubDict = pObjDirect1->AsDictionary(); + if (!pSubDict) + continue; + + auto subdict_it = pSubDict->begin(); + while (subdict_it != pSubDict->end()) { + const CFX_ByteString& csKey2 = subdict_it->first; + CPDF_Object* pObj2 = subdict_it->second; + ++subdict_it; + if (!pObj2) + continue; + if (csKey2 != "Off") { + pSubDict->ReplaceKey(csKey2, csValue); + break; + } + } + } +} + +CFX_ByteString CPDF_FormControl::GetCheckedAPState() { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csOn = GetOnStateName(); + if (GetType() == CPDF_FormField::RadioButton || + GetType() == CPDF_FormField::CheckBox) { + if (ToArray(FPDF_GetFieldAttr(m_pField->m_pDict, "Opt"))) { + int iIndex = m_pField->GetControlIndex(this); + csOn.Format("%d", iIndex); + } + } + if (csOn.IsEmpty()) + csOn = "Yes"; + return csOn; +} + +CFX_WideString CPDF_FormControl::GetExportValue() const { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csOn = GetOnStateName(); + if (GetType() == CPDF_FormField::RadioButton || + GetType() == CPDF_FormField::CheckBox) { + if (CPDF_Array* pArray = + ToArray(FPDF_GetFieldAttr(m_pField->m_pDict, "Opt"))) { + int iIndex = m_pField->GetControlIndex(this); + csOn = pArray->GetStringAt(iIndex); + } + } + if (csOn.IsEmpty()) + csOn = "Yes"; + return PDF_DecodeText(csOn); +} + +bool CPDF_FormControl::IsChecked() const { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csOn = GetOnStateName(); + CFX_ByteString csAS = m_pWidgetDict->GetStringBy("AS"); + return csAS == csOn; +} + +bool CPDF_FormControl::IsDefaultChecked() const { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CPDF_Object* pDV = FPDF_GetFieldAttr(m_pField->m_pDict, "DV"); + if (!pDV) + return FALSE; + + CFX_ByteString csDV = pDV->GetString(); + CFX_ByteString csOn = GetOnStateName(); + return (csDV == csOn); +} + +void CPDF_FormControl::CheckControl(FX_BOOL bChecked) { + ASSERT(GetType() == CPDF_FormField::CheckBox || + GetType() == CPDF_FormField::RadioButton); + CFX_ByteString csOn = GetOnStateName(); + CFX_ByteString csOldAS = m_pWidgetDict->GetStringBy("AS", "Off"); + CFX_ByteString csAS = "Off"; + if (bChecked) + csAS = csOn; + if (csOldAS == csAS) + return; + m_pWidgetDict->SetAtName("AS", csAS); +} + +void CPDF_FormControl::DrawControl(CFX_RenderDevice* pDevice, + CFX_Matrix* pMatrix, + CPDF_Page* pPage, + CPDF_Annot::AppearanceMode mode, + const CPDF_RenderOptions* pOptions) { + if (m_pWidgetDict->GetIntegerBy("F") & ANNOTFLAG_HIDDEN) + return; + + CPDF_Stream* pStream = FPDFDOC_GetAnnotAP(m_pWidgetDict, mode); + if (!pStream) + return; + + CFX_FloatRect form_bbox = pStream->GetDict()->GetRectBy("BBox"); + CFX_Matrix form_matrix = pStream->GetDict()->GetMatrixBy("Matrix"); + form_matrix.TransformRect(form_bbox); + CFX_FloatRect arect = m_pWidgetDict->GetRectBy("Rect"); + CFX_Matrix matrix; + matrix.MatchRect(arect, form_bbox); + matrix.Concat(*pMatrix); + CPDF_Form form(m_pField->m_pForm->m_pDocument, + m_pField->m_pForm->m_pFormDict->GetDictBy("DR"), pStream); + form.ParseContent(nullptr, nullptr, nullptr); + CPDF_RenderContext context(pPage); + context.AppendLayer(&form, &matrix); + context.Render(pDevice, pOptions, nullptr); +} + +CPDF_FormControl::HighlightingMode CPDF_FormControl::GetHighlightingMode() { + if (!m_pWidgetDict) + return Invert; + + CFX_ByteString csH = m_pWidgetDict->GetStringBy("H", "I"); + for (size_t i = 0; i < FX_ArraySize(g_sHighlightingMode); ++i) { + if (csH == g_sHighlightingMode[i]) + return static_cast<HighlightingMode>(i); + } + return Invert; +} + +CPDF_ApSettings CPDF_FormControl::GetMK() const { + return CPDF_ApSettings(m_pWidgetDict ? m_pWidgetDict->GetDictBy("MK") + : nullptr); +} + +bool CPDF_FormControl::HasMKEntry(const CFX_ByteString& csEntry) const { + return GetMK().HasMKEntry(csEntry); +} + +int CPDF_FormControl::GetRotation() { + return GetMK().GetRotation(); +} + +FX_ARGB CPDF_FormControl::GetColor(int& iColorType, + const CFX_ByteString& csEntry) { + return GetMK().GetColor(iColorType, csEntry); +} + +FX_FLOAT CPDF_FormControl::GetOriginalColor(int index, + const CFX_ByteString& csEntry) { + return GetMK().GetOriginalColor(index, csEntry); +} + +void CPDF_FormControl::GetOriginalColor(int& iColorType, + FX_FLOAT fc[4], + const CFX_ByteString& csEntry) { + GetMK().GetOriginalColor(iColorType, fc, csEntry); +} + +CFX_WideString CPDF_FormControl::GetCaption(const CFX_ByteString& csEntry) { + return GetMK().GetCaption(csEntry); +} + +CPDF_Stream* CPDF_FormControl::GetIcon(const CFX_ByteString& csEntry) { + return GetMK().GetIcon(csEntry); +} + +CPDF_IconFit CPDF_FormControl::GetIconFit() { + return GetMK().GetIconFit(); +} + +int CPDF_FormControl::GetTextPosition() { + return GetMK().GetTextPosition(); +} + +CPDF_Action CPDF_FormControl::GetAction() { + if (!m_pWidgetDict) + return CPDF_Action(); + + if (m_pWidgetDict->KeyExist("A")) + return CPDF_Action(m_pWidgetDict->GetDictBy("A")); + + CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "A"); + if (!pObj) + return CPDF_Action(); + + return CPDF_Action(pObj->GetDict()); +} + +CPDF_AAction CPDF_FormControl::GetAdditionalAction() { + if (!m_pWidgetDict) + return CPDF_AAction(); + + if (m_pWidgetDict->KeyExist("AA")) + return CPDF_AAction(m_pWidgetDict->GetDictBy("AA")); + return m_pField->GetAdditionalAction(); +} + +CPDF_DefaultAppearance CPDF_FormControl::GetDefaultAppearance() { + if (!m_pWidgetDict) + return CPDF_DefaultAppearance(); + + if (m_pWidgetDict->KeyExist("DA")) + return CPDF_DefaultAppearance(m_pWidgetDict->GetStringBy("DA")); + + CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "DA"); + if (pObj) + return CPDF_DefaultAppearance(pObj->GetString()); + return m_pField->m_pForm->GetDefaultAppearance(); +} + +CPDF_Font* CPDF_FormControl::GetDefaultControlFont() { + CPDF_DefaultAppearance cDA = GetDefaultAppearance(); + CFX_ByteString csFontNameTag; + FX_FLOAT fFontSize; + cDA.GetFont(csFontNameTag, fFontSize); + if (csFontNameTag.IsEmpty()) + return nullptr; + + CPDF_Object* pObj = FPDF_GetFieldAttr(m_pWidgetDict, "DR"); + if (CPDF_Dictionary* pDict = ToDictionary(pObj)) { + CPDF_Dictionary* pFonts = pDict->GetDictBy("Font"); + if (pFonts) { + CPDF_Dictionary* pElement = pFonts->GetDictBy(csFontNameTag); + if (pElement) { + CPDF_Font* pFont = m_pField->m_pForm->m_pDocument->LoadFont(pElement); + if (pFont) + return pFont; + } + } + } + if (CPDF_Font* pFormFont = m_pField->m_pForm->GetFormFont(csFontNameTag)) + return pFormFont; + + CPDF_Dictionary* pPageDict = m_pWidgetDict->GetDictBy("P"); + pObj = FPDF_GetFieldAttr(pPageDict, "Resources"); + if (CPDF_Dictionary* pDict = ToDictionary(pObj)) { + CPDF_Dictionary* pFonts = pDict->GetDictBy("Font"); + if (pFonts) { + CPDF_Dictionary* pElement = pFonts->GetDictBy(csFontNameTag); + if (pElement) { + CPDF_Font* pFont = m_pField->m_pForm->m_pDocument->LoadFont(pElement); + if (pFont) + return pFont; + } + } + } + return nullptr; +} + +int CPDF_FormControl::GetControlAlignment() { + if (!m_pWidgetDict) + return 0; + if (m_pWidgetDict->KeyExist("Q")) + return m_pWidgetDict->GetIntegerBy("Q", 0); + + CPDF_Object* pObj = FPDF_GetFieldAttr(m_pField->m_pDict, "Q"); + if (pObj) + return pObj->GetInteger(); + return m_pField->m_pForm->GetFormAlignment(); +} |