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// 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
#include "public/fpdf_edit.h"
#include <algorithm>
#include <memory>
#include <utility>
#include <vector>
#include "constants/page_object.h"
#include "core/fpdfapi/edit/cpdf_pagecontentgenerator.h"
#include "core/fpdfapi/page/cpdf_form.h"
#include "core/fpdfapi/page/cpdf_formobject.h"
#include "core/fpdfapi/page/cpdf_imageobject.h"
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/page/cpdf_pageobject.h"
#include "core/fpdfapi/page/cpdf_pathobject.h"
#include "core/fpdfapi/page/cpdf_shadingobject.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_string.h"
#include "core/fpdfdoc/cpdf_annot.h"
#include "core/fpdfdoc/cpdf_annotlist.h"
#include "core/fxcrt/fx_extension.h"
#include "fpdfsdk/cpdfsdk_helpers.h"
#include "public/fpdf_formfill.h"
#include "third_party/base/logging.h"
#include "third_party/base/stl_util.h"
#ifdef PDF_ENABLE_XFA
#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h"
#include "fpdfsdk/fpdfxfa/cpdfxfa_page.h"
#endif // PDF_ENABLE_XFA
namespace {
static_assert(FPDF_PAGEOBJ_TEXT == CPDF_PageObject::TEXT,
"FPDF_PAGEOBJ_TEXT/CPDF_PageObject::TEXT mismatch");
static_assert(FPDF_PAGEOBJ_PATH == CPDF_PageObject::PATH,
"FPDF_PAGEOBJ_PATH/CPDF_PageObject::PATH mismatch");
static_assert(FPDF_PAGEOBJ_IMAGE == CPDF_PageObject::IMAGE,
"FPDF_PAGEOBJ_IMAGE/CPDF_PageObject::IMAGE mismatch");
static_assert(FPDF_PAGEOBJ_SHADING == CPDF_PageObject::SHADING,
"FPDF_PAGEOBJ_SHADING/CPDF_PageObject::SHADING mismatch");
static_assert(FPDF_PAGEOBJ_FORM == CPDF_PageObject::FORM,
"FPDF_PAGEOBJ_FORM/CPDF_PageObject::FORM mismatch");
bool IsPageObject(CPDF_Page* pPage) {
if (!pPage)
return false;
const CPDF_Dictionary* pFormDict = pPage->GetDict();
if (!pFormDict || !pFormDict->KeyExist("Type"))
return false;
const CPDF_Object* pObject = pFormDict->GetObjectFor("Type")->GetDirect();
return pObject && !pObject->GetString().Compare("Page");
}
void CalcBoundingBox(CPDF_PageObject* pPageObj) {
switch (pPageObj->GetType()) {
case CPDF_PageObject::TEXT: {
break;
}
case CPDF_PageObject::PATH: {
CPDF_PathObject* pPathObj = pPageObj->AsPath();
pPathObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::IMAGE: {
CPDF_ImageObject* pImageObj = pPageObj->AsImage();
pImageObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::SHADING: {
CPDF_ShadingObject* pShadingObj = pPageObj->AsShading();
pShadingObj->CalcBoundingBox();
break;
}
case CPDF_PageObject::FORM: {
CPDF_FormObject* pFormObj = pPageObj->AsForm();
pFormObj->CalcBoundingBox();
break;
}
default: {
NOTREACHED();
break;
}
}
}
CPDF_Dictionary* GetMarkParamDict(FPDF_PAGEOBJECTMARK mark) {
CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
return pMarkItem ? pMarkItem->GetParam() : nullptr;
}
CPDF_Dictionary* GetOrCreateMarkParamsDict(FPDF_DOCUMENT document,
FPDF_PAGEOBJECTMARK mark) {
CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
if (!pDoc)
return nullptr;
CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
if (!pMarkItem)
return nullptr;
CPDF_Dictionary* pParams = pMarkItem->GetParam();
// If the Params dict does not exist, create a new one.
if (!pParams) {
auto new_dict =
pdfium::MakeUnique<CPDF_Dictionary>(pDoc->GetByteStringPool());
pParams = new_dict.get();
pMarkItem->SetDirectDict(std::move(new_dict));
}
return pParams;
}
bool PageObjectContainsMark(CPDF_PageObject* pPageObj,
FPDF_PAGEOBJECTMARK mark) {
const CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
return pMarkItem && pPageObj->m_ContentMark.ContainsItem(pMarkItem);
}
unsigned int GetUnsignedAlpha(float alpha) {
return static_cast<unsigned int>(alpha * 255.f + 0.5f);
}
const CPDF_PageObjectList* CPDFPageObjListFromFPDFFormObject(
FPDF_PAGEOBJECT page_object) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return nullptr;
CPDF_FormObject* pFormObject = pPageObj->AsForm();
if (!pFormObject)
return nullptr;
const CPDF_Form* pForm = pFormObject->form();
if (!pForm)
return nullptr;
return pForm->GetPageObjectList();
}
} // namespace
FPDF_EXPORT FPDF_DOCUMENT FPDF_CALLCONV FPDF_CreateNewDocument() {
auto pDoc = pdfium::MakeUnique<CPDF_Document>();
pDoc->CreateNewDoc();
time_t currentTime;
ByteString DateStr;
if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) {
if (FXSYS_time(&currentTime) != -1) {
tm* pTM = localtime(&currentTime);
if (pTM) {
DateStr = ByteString::Format(
"D:%04d%02d%02d%02d%02d%02d", pTM->tm_year + 1900, pTM->tm_mon + 1,
pTM->tm_mday, pTM->tm_hour, pTM->tm_min, pTM->tm_sec);
}
}
}
CPDF_Dictionary* pInfoDict = pDoc->GetInfo();
if (pInfoDict) {
if (FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS))
pInfoDict->SetNewFor<CPDF_String>("CreationDate", DateStr, false);
pInfoDict->SetNewFor<CPDF_String>("Creator", L"PDFium");
}
#ifdef PDF_ENABLE_XFA
pDoc->SetExtension(pdfium::MakeUnique<CPDFXFA_Context>(pDoc.get()));
#endif // PDF_ENABLE_XFA
// Caller takes ownership of pDoc.
return FPDFDocumentFromCPDFDocument(pDoc.release());
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_Delete(FPDF_DOCUMENT document,
int page_index) {
auto* pDoc = CPDFDocumentFromFPDFDocument(document);
if (!pDoc)
return;
CPDF_Document::Extension* pExtension = pDoc->GetExtension();
if (pExtension) {
pExtension->DeletePage(page_index);
return;
}
pDoc->DeletePage(page_index);
}
FPDF_EXPORT FPDF_PAGE FPDF_CALLCONV FPDFPage_New(FPDF_DOCUMENT document,
int page_index,
double width,
double height) {
CPDF_Document* pDoc = CPDFDocumentFromFPDFDocument(document);
if (!pDoc)
return nullptr;
page_index = pdfium::clamp(page_index, 0, pDoc->GetPageCount());
CPDF_Dictionary* pPageDict = pDoc->CreateNewPage(page_index);
if (!pPageDict)
return nullptr;
pPageDict->SetRectFor(pdfium::page_object::kMediaBox,
CFX_FloatRect(0, 0, width, height));
pPageDict->SetNewFor<CPDF_Number>(pdfium::page_object::kRotate, 0);
pPageDict->SetNewFor<CPDF_Dictionary>(pdfium::page_object::kResources);
#ifdef PDF_ENABLE_XFA
auto* pContext = static_cast<CPDFXFA_Context*>(pDoc->GetExtension());
if (pContext) {
auto pXFAPage = pdfium::MakeRetain<CPDFXFA_Page>(pContext, page_index);
pXFAPage->LoadPDFPage(pPageDict);
return FPDFPageFromIPDFPage(pXFAPage.Leak()); // Caller takes ownership.
}
#endif // PDF_ENABLE_XFA
auto pPage = pdfium::MakeRetain<CPDF_Page>(pDoc, pPageDict, true);
pPage->ParseContent();
return FPDFPageFromIPDFPage(pPage.Leak()); // Caller takes ownership.
}
FPDF_EXPORT int FPDF_CALLCONV FPDFPage_GetRotation(FPDF_PAGE page) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
return IsPageObject(pPage) ? pPage->GetPageRotation() : -1;
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertObject(FPDF_PAGE page,
FPDF_PAGEOBJECT page_obj) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj);
if (!pPageObj)
return;
std::unique_ptr<CPDF_PageObject> pPageObjHolder(pPageObj);
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return;
pPageObj->SetDirty(true);
pPage->AppendPageObject(std::move(pPageObjHolder));
CalcBoundingBox(pPageObj);
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPage_RemoveObject(FPDF_PAGE page, FPDF_PAGEOBJECT page_obj) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_obj);
if (!pPageObj)
return false;
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return false;
return pPage->RemovePageObject(pPageObj);
}
FPDF_EXPORT int FPDF_CALLCONV FPDFPage_CountObjects(FPDF_PAGE page) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return -1;
return pPage->GetPageObjectCount();
}
FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV FPDFPage_GetObject(FPDF_PAGE page,
int index) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return nullptr;
return FPDFPageObjectFromCPDFPageObject(pPage->GetPageObjectByIndex(index));
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_HasTransparency(FPDF_PAGE page) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
return pPage && pPage->BackgroundAlphaNeeded();
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPageObj_Destroy(FPDF_PAGEOBJECT page_obj) {
delete CPDFPageObjectFromFPDFPageObject(page_obj);
}
FPDF_EXPORT int FPDF_CALLCONV
FPDFPageObj_CountMarks(FPDF_PAGEOBJECT page_object) {
if (!page_object)
return -1;
const auto& mark =
CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark;
return mark.CountItems();
}
FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV
FPDFPageObj_GetMark(FPDF_PAGEOBJECT page_object, unsigned long index) {
if (!page_object)
return nullptr;
auto* mark = &CPDFPageObjectFromFPDFPageObject(page_object)->m_ContentMark;
if (index >= mark->CountItems())
return nullptr;
return FPDFPageObjectMarkFromCPDFContentMarkItem(mark->GetItem(index));
}
FPDF_EXPORT FPDF_PAGEOBJECTMARK FPDF_CALLCONV
FPDFPageObj_AddMark(FPDF_PAGEOBJECT page_object, FPDF_BYTESTRING name) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return nullptr;
auto* mark = &pPageObj->m_ContentMark;
mark->AddMark(name);
unsigned long index = mark->CountItems() - 1;
pPageObj->SetDirty(true);
return FPDFPageObjectMarkFromCPDFContentMarkItem(mark->GetItem(index));
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_RemoveMark(FPDF_PAGEOBJECT page_object, FPDF_PAGEOBJECTMARK mark) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
if (!pPageObj || !pMarkItem)
return false;
bool result = pPageObj->m_ContentMark.RemoveMark(pMarkItem);
if (result)
pPageObj->SetDirty(true);
return result;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_GetName(FPDF_PAGEOBJECTMARK mark,
void* buffer,
unsigned long buflen,
unsigned long* out_buflen) {
if (!mark || !out_buflen)
return false;
const CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
*out_buflen = Utf16EncodeMaybeCopyAndReturnLength(
WideString::FromUTF8(pMarkItem->GetName().AsStringView()), buffer,
buflen);
return true;
}
FPDF_EXPORT int FPDF_CALLCONV
FPDFPageObjMark_CountParams(FPDF_PAGEOBJECTMARK mark) {
if (!mark)
return -1;
const CPDF_ContentMarkItem* pMarkItem =
CPDFContentMarkItemFromFPDFPageObjectMark(mark);
const CPDF_Dictionary* pParams = pMarkItem->GetParam();
return pParams ? pParams->GetCount() : 0;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_GetParamKey(FPDF_PAGEOBJECTMARK mark,
unsigned long index,
void* buffer,
unsigned long buflen,
unsigned long* out_buflen) {
if (!out_buflen)
return false;
const CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return false;
for (auto& it : *pParams) {
if (index == 0) {
*out_buflen = Utf16EncodeMaybeCopyAndReturnLength(
WideString::FromUTF8(it.first.AsStringView()), buffer, buflen);
return true;
}
--index;
}
return false;
}
FPDF_EXPORT FPDF_OBJECT_TYPE FPDF_CALLCONV
FPDFPageObjMark_GetParamValueType(FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key) {
const CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return FPDF_OBJECT_UNKNOWN;
const CPDF_Object* pObject = pParams->GetObjectFor(key);
return pObject ? pObject->GetType() : FPDF_OBJECT_UNKNOWN;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_GetParamIntValue(FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key,
int* out_value) {
if (!out_value)
return false;
const CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return false;
const CPDF_Object* pObj = pParams->GetObjectFor(key);
if (!pObj || !pObj->IsNumber())
return false;
*out_value = pObj->GetInteger();
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_GetParamStringValue(FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key,
void* buffer,
unsigned long buflen,
unsigned long* out_buflen) {
if (!out_buflen)
return false;
const CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return false;
const CPDF_Object* pObj = pParams->GetObjectFor(key);
if (!pObj || !pObj->IsString())
return false;
*out_buflen = Utf16EncodeMaybeCopyAndReturnLength(
WideString::FromUTF8(pObj->GetString().AsStringView()), buffer, buflen);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_GetParamBlobValue(FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key,
void* buffer,
unsigned long buflen,
unsigned long* out_buflen) {
if (!out_buflen)
return false;
const CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return false;
const CPDF_Object* pObj = pParams->GetObjectFor(key);
if (!pObj || !pObj->IsString())
return false;
ByteString result = pObj->GetString();
unsigned long len = result.GetLength();
if (buffer && len <= buflen)
memcpy(buffer, result.c_str(), len);
*out_buflen = len;
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_HasTransparency(FPDF_PAGEOBJECT pageObject) {
if (!pageObject)
return false;
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
int blend_type = pPageObj->m_GeneralState.GetBlendType();
if (blend_type != FXDIB_BLEND_NORMAL)
return true;
const CPDF_Dictionary* pSMaskDict =
ToDictionary(pPageObj->m_GeneralState.GetSoftMask());
if (pSMaskDict)
return true;
if (pPageObj->m_GeneralState.GetFillAlpha() != 1.0f)
return true;
if (pPageObj->IsPath() && pPageObj->m_GeneralState.GetStrokeAlpha() != 1.0f) {
return true;
}
if (pPageObj->IsForm()) {
const CPDF_Form* pForm = pPageObj->AsForm()->form();
if (pForm) {
const CPDF_Transparency& trans = pForm->GetTransparency();
if (trans.IsGroup() || trans.IsIsolated())
return true;
}
}
return false;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_SetIntParam(FPDF_DOCUMENT document,
FPDF_PAGEOBJECT page_object,
FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key,
int value) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !PageObjectContainsMark(pPageObj, mark))
return false;
CPDF_Dictionary* pParams = GetOrCreateMarkParamsDict(document, mark);
if (!pParams)
return false;
pParams->SetNewFor<CPDF_Number>(key, value);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_SetStringParam(FPDF_DOCUMENT document,
FPDF_PAGEOBJECT page_object,
FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key,
FPDF_BYTESTRING value) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !PageObjectContainsMark(pPageObj, mark))
return false;
CPDF_Dictionary* pParams = GetOrCreateMarkParamsDict(document, mark);
if (!pParams)
return false;
pParams->SetNewFor<CPDF_String>(key, value, false);
pPageObj->SetDirty(true);
return true;
}
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) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !PageObjectContainsMark(pPageObj, mark))
return false;
CPDF_Dictionary* pParams = GetOrCreateMarkParamsDict(document, mark);
if (!pParams)
return false;
if (!value && value_len > 0)
return false;
pParams->SetNewFor<CPDF_String>(
key, ByteString(static_cast<const char*>(value), value_len), true);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObjMark_RemoveParam(FPDF_PAGEOBJECT page_object,
FPDF_PAGEOBJECTMARK mark,
FPDF_BYTESTRING key) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return false;
CPDF_Dictionary* pParams = GetMarkParamDict(mark);
if (!pParams)
return false;
auto removed = pParams->RemoveFor(key);
if (!removed)
return false;
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT int FPDF_CALLCONV FPDFPageObj_GetType(FPDF_PAGEOBJECT pageObject) {
if (!pageObject)
return FPDF_PAGEOBJ_UNKNOWN;
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
return pPageObj->GetType();
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GenerateContent(FPDF_PAGE page) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return false;
CPDF_PageContentGenerator CG(pPage);
CG.GenerateContent();
return true;
}
FPDF_EXPORT void FPDF_CALLCONV
FPDFPageObj_Transform(FPDF_PAGEOBJECT page_object,
double a,
double b,
double c,
double d,
double e,
double f) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return;
CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e, (float)f);
pPageObj->Transform(matrix);
}
FPDF_EXPORT void FPDF_CALLCONV
FPDFPageObj_SetBlendMode(FPDF_PAGEOBJECT page_object,
FPDF_BYTESTRING blend_mode) {
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj)
return;
pPageObj->m_GeneralState.SetBlendMode(blend_mode);
pPageObj->SetDirty(true);
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_TransformAnnots(FPDF_PAGE page,
double a,
double b,
double c,
double d,
double e,
double f) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!pPage)
return;
CPDF_AnnotList AnnotList(pPage);
for (size_t i = 0; i < AnnotList.Count(); ++i) {
CPDF_Annot* pAnnot = AnnotList.GetAt(i);
CFX_Matrix matrix((float)a, (float)b, (float)c, (float)d, (float)e,
(float)f);
CFX_FloatRect rect = matrix.TransformRect(pAnnot->GetRect());
CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict();
CPDF_Array* pRectArray = pAnnotDict->GetArrayFor("Rect");
if (pRectArray)
pRectArray->Clear();
else
pRectArray = pAnnotDict->SetNewFor<CPDF_Array>("Rect");
pRectArray->AddNew<CPDF_Number>(rect.left);
pRectArray->AddNew<CPDF_Number>(rect.bottom);
pRectArray->AddNew<CPDF_Number>(rect.right);
pRectArray->AddNew<CPDF_Number>(rect.top);
// TODO(unknown): Transform AP's rectangle
}
}
FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetRotation(FPDF_PAGE page,
int rotate) {
CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
if (!IsPageObject(pPage))
return;
rotate %= 4;
pPage->GetDict()->SetNewFor<CPDF_Number>(pdfium::page_object::kRotate,
rotate * 90);
}
FPDF_BOOL FPDFPageObj_SetFillColor(FPDF_PAGEOBJECT page_object,
unsigned int R,
unsigned int G,
unsigned int B,
unsigned int A) {
if (!page_object || R > 255 || G > 255 || B > 255 || A > 255)
return false;
std::vector<float> rgb = {R / 255.f, G / 255.f, B / 255.f};
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
pPageObj->m_GeneralState.SetFillAlpha(A / 255.f);
pPageObj->m_ColorState.SetFillColor(
CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB), rgb);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_GetFillColor(FPDF_PAGEOBJECT page_object,
unsigned int* R,
unsigned int* G,
unsigned int* B,
unsigned int* A) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !R || !G || !B || !A)
return false;
FX_COLORREF fillColor = pPageObj->m_ColorState.GetFillColorRef();
*R = FXSYS_GetRValue(fillColor);
*G = FXSYS_GetGValue(fillColor);
*B = FXSYS_GetBValue(fillColor);
*A = GetUnsignedAlpha(pPageObj->m_GeneralState.GetFillAlpha());
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_GetBounds(FPDF_PAGEOBJECT pageObject,
float* left,
float* bottom,
float* right,
float* top) {
if (!pageObject)
return false;
CPDF_PageObject* pPageObj = CPDFPageObjectFromFPDFPageObject(pageObject);
CFX_FloatRect bbox = pPageObj->GetRect();
*left = bbox.left;
*bottom = bbox.bottom;
*right = bbox.right;
*top = bbox.top;
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_SetStrokeColor(FPDF_PAGEOBJECT page_object,
unsigned int R,
unsigned int G,
unsigned int B,
unsigned int A) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || R > 255 || G > 255 || B > 255 || A > 255)
return false;
std::vector<float> rgb = {R / 255.f, G / 255.f, B / 255.f};
pPageObj->m_GeneralState.SetStrokeAlpha(A / 255.f);
pPageObj->m_ColorState.SetStrokeColor(
CPDF_ColorSpace::GetStockCS(PDFCS_DEVICERGB), rgb);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_GetStrokeColor(FPDF_PAGEOBJECT page_object,
unsigned int* R,
unsigned int* G,
unsigned int* B,
unsigned int* A) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !R || !G || !B || !A)
return false;
FX_COLORREF strokeColor = pPageObj->m_ColorState.GetStrokeColorRef();
*R = FXSYS_GetRValue(strokeColor);
*G = FXSYS_GetGValue(strokeColor);
*B = FXSYS_GetBValue(strokeColor);
*A = GetUnsignedAlpha(pPageObj->m_GeneralState.GetStrokeAlpha());
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_SetStrokeWidth(FPDF_PAGEOBJECT page_object, float width) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || width < 0.0f)
return false;
pPageObj->m_GraphState.SetLineWidth(width);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_GetStrokeWidth(FPDF_PAGEOBJECT page_object, float* width) {
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
if (!pPageObj || !width)
return false;
*width = pPageObj->m_GraphState.GetLineWidth();
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_SetLineJoin(FPDF_PAGEOBJECT page_object, int line_join) {
if (!page_object)
return false;
if (line_join <
static_cast<int>(CFX_GraphStateData::LineJoin::LineJoinMiter) ||
line_join >
static_cast<int>(CFX_GraphStateData::LineJoin::LineJoinBevel)) {
return false;
}
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
CFX_GraphStateData::LineJoin lineJoin =
static_cast<CFX_GraphStateData::LineJoin>(line_join);
pPageObj->m_GraphState.SetLineJoin(lineJoin);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFPageObj_SetLineCap(FPDF_PAGEOBJECT page_object, int line_cap) {
if (!page_object)
return false;
if (line_cap < static_cast<int>(CFX_GraphStateData::LineCap::LineCapButt) ||
line_cap > static_cast<int>(CFX_GraphStateData::LineCap::LineCapSquare)) {
return false;
}
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(page_object);
CFX_GraphStateData::LineCap lineCap =
static_cast<CFX_GraphStateData::LineCap>(line_cap);
pPageObj->m_GraphState.SetLineCap(lineCap);
pPageObj->SetDirty(true);
return true;
}
FPDF_EXPORT int FPDF_CALLCONV
FPDFFormObj_CountObjects(FPDF_PAGEOBJECT page_object) {
const CPDF_PageObjectList* pObjectList =
CPDFPageObjListFromFPDFFormObject(page_object);
if (!pObjectList)
return -1;
return pObjectList->size();
}
FPDF_EXPORT FPDF_PAGEOBJECT FPDF_CALLCONV
FPDFFormObj_GetObject(FPDF_PAGEOBJECT form_object, unsigned long index) {
const CPDF_PageObjectList* pObjectList =
CPDFPageObjListFromFPDFFormObject(form_object);
if (!pObjectList)
return nullptr;
return FPDFPageObjectFromCPDFPageObject(
pObjectList->GetPageObjectByIndex(index));
}
FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
FPDFFormObj_GetMatrix(FPDF_PAGEOBJECT form_object,
double* a,
double* b,
double* c,
double* d,
double* e,
double* f) {
if (!form_object || !a || !b || !c || !d || !e || !f)
return false;
auto* pPageObj = CPDFPageObjectFromFPDFPageObject(form_object);
CPDF_FormObject* pFormObj = pPageObj->AsForm();
if (!pFormObj)
return false;
const CFX_Matrix& matrix = pFormObj->form_matrix();
*a = matrix.a;
*b = matrix.b;
*c = matrix.c;
*d = matrix.d;
*e = matrix.e;
*f = matrix.f;
return true;
}