summaryrefslogtreecommitdiff
path: root/fpdfsdk/src/fpdf_transformpage.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'fpdfsdk/src/fpdf_transformpage.cpp')
-rw-r--r--fpdfsdk/src/fpdf_transformpage.cpp327
1 files changed, 0 insertions, 327 deletions
diff --git a/fpdfsdk/src/fpdf_transformpage.cpp b/fpdfsdk/src/fpdf_transformpage.cpp
deleted file mode 100644
index f3c2576dd5..0000000000
--- a/fpdfsdk/src/fpdf_transformpage.cpp
+++ /dev/null
@@ -1,327 +0,0 @@
-// 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_transformpage.h"
-
-#include "core/include/fpdfapi/cpdf_array.h"
-#include "core/include/fpdfapi/cpdf_document.h"
-#include "core/include/fpdfapi/cpdf_number.h"
-#include "core/include/fpdfapi/cpdf_reference.h"
-#include "fpdfsdk/include/fsdk_define.h"
-
-namespace {
-
-void SetBoundingBox(CPDF_Page* page,
- const CFX_ByteStringC& key,
- float left,
- float bottom,
- float right,
- float top) {
- CPDF_Dictionary* pPageDict = page->m_pFormDict;
- CPDF_Array* pBoundingBoxArray = new CPDF_Array;
- pBoundingBoxArray->Add(new CPDF_Number(left));
- pBoundingBoxArray->Add(new CPDF_Number(bottom));
- pBoundingBoxArray->Add(new CPDF_Number(right));
- pBoundingBoxArray->Add(new CPDF_Number(top));
- pPageDict->SetAt(key, pBoundingBoxArray);
-}
-
-FPDF_BOOL GetBoundingBox(CPDF_Page* page,
- const CFX_ByteStringC& key,
- float* left,
- float* bottom,
- float* right,
- float* top) {
- CPDF_Dictionary* pPageDict = page->m_pFormDict;
- CPDF_Array* pArray = pPageDict->GetArrayBy(key);
- if (!pArray)
- return FALSE;
-
- *left = pArray->GetFloatAt(0);
- *bottom = pArray->GetFloatAt(1);
- *right = pArray->GetFloatAt(2);
- *top = pArray->GetFloatAt(3);
- return TRUE;
-}
-
-} // namespace
-
-DLLEXPORT void STDCALL FPDFPage_SetMediaBox(FPDF_PAGE page,
- float left,
- float bottom,
- float right,
- float top) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
-
- SetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
-}
-
-DLLEXPORT void STDCALL FPDFPage_SetCropBox(FPDF_PAGE page,
- float left,
- float bottom,
- float right,
- float top) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
-
- SetBoundingBox(pPage, "CropBox", left, bottom, right, top);
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetMediaBox(FPDF_PAGE page,
- float* left,
- float* bottom,
- float* right,
- float* top) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- return pPage && GetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetCropBox(FPDF_PAGE page,
- float* left,
- float* bottom,
- float* right,
- float* top) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- return pPage && GetBoundingBox(pPage, "CropBox", left, bottom, right, top);
-}
-
-DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
- FS_MATRIX* matrix,
- FS_RECTF* clipRect) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return FALSE;
-
- CFX_ByteTextBuf textBuf;
- textBuf << "q ";
- CFX_FloatRect rect(clipRect->left, clipRect->bottom, clipRect->right,
- clipRect->top);
- rect.Normalize();
- CFX_ByteString bsClipping;
- bsClipping.Format("%f %f %f %f re W* n ", rect.left, rect.bottom,
- rect.Width(), rect.Height());
- textBuf << bsClipping;
-
- CFX_ByteString bsMatix;
- bsMatix.Format("%f %f %f %f %f %f cm ", matrix->a, matrix->b, matrix->c,
- matrix->d, matrix->e, matrix->f);
- textBuf << bsMatix;
-
- CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
- CPDF_Object* pContentObj =
- pPageDic ? pPageDic->GetElement("Contents") : nullptr;
- if (!pContentObj)
- pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
- if (!pContentObj)
- return FALSE;
-
- CPDF_Dictionary* pDic = new CPDF_Dictionary;
- CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
- pStream->SetData(textBuf.GetBuffer(), textBuf.GetSize(), FALSE, FALSE);
- CPDF_Document* pDoc = pPage->m_pDocument;
- if (!pDoc)
- return FALSE;
- pDoc->AddIndirectObject(pStream);
-
- pDic = new CPDF_Dictionary;
- CPDF_Stream* pEndStream = new CPDF_Stream(nullptr, 0, pDic);
- pEndStream->SetData((const uint8_t*)" Q", 2, FALSE, FALSE);
- pDoc->AddIndirectObject(pEndStream);
-
- CPDF_Array* pContentArray = nullptr;
- if (CPDF_Array* pArray = ToArray(pContentObj)) {
- pContentArray = pArray;
- CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
- pContentArray->InsertAt(0, pRef);
- pContentArray->AddReference(pDoc, pEndStream);
- } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
- CPDF_Object* pDirectObj = pReference->GetDirect();
- if (pDirectObj) {
- if (CPDF_Array* pArray = pDirectObj->AsArray()) {
- pContentArray = pArray;
- CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
- pContentArray->InsertAt(0, pRef);
- pContentArray->AddReference(pDoc, pEndStream);
- } else if (pDirectObj->IsStream()) {
- pContentArray = new CPDF_Array();
- pContentArray->AddReference(pDoc, pStream->GetObjNum());
- pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
- pContentArray->AddReference(pDoc, pEndStream);
- pPageDic->SetAtReference("Contents", pDoc,
- pDoc->AddIndirectObject(pContentArray));
- }
- }
- }
-
- // Need to transform the patterns as well.
- CPDF_Dictionary* pRes = pPageDic->GetDictBy("Resources");
- if (pRes) {
- CPDF_Dictionary* pPattenDict = pRes->GetDictBy("Pattern");
- if (pPattenDict) {
- for (const auto& it : *pPattenDict) {
- CPDF_Object* pObj = it.second;
- if (pObj->IsReference())
- pObj = pObj->GetDirect();
-
- CPDF_Dictionary* pDict = nullptr;
- if (pObj->IsDictionary())
- pDict = pObj->AsDictionary();
- else if (CPDF_Stream* pStream = pObj->AsStream())
- pDict = pStream->GetDict();
- else
- continue;
-
- CFX_Matrix m = pDict->GetMatrixBy("Matrix");
- CFX_Matrix t = *(CFX_Matrix*)matrix;
- m.Concat(t);
- pDict->SetAtMatrix("Matrix", m);
- }
- }
- }
-
- return TRUE;
-}
-
-DLLEXPORT void STDCALL
-FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
- double a,
- double b,
- double c,
- double d,
- double e,
- double f) {
- CPDF_PageObject* pPageObj = (CPDF_PageObject*)page_object;
- if (!pPageObj)
- return;
- CFX_Matrix matrix((FX_FLOAT)a, (FX_FLOAT)b, (FX_FLOAT)c, (FX_FLOAT)d,
- (FX_FLOAT)e, (FX_FLOAT)f);
-
- // Special treatment to shading object, because the ClipPath for shading
- // object is already transformed.
- if (!pPageObj->IsShading())
- pPageObj->TransformClipPath(matrix);
- pPageObj->TransformGeneralState(matrix);
-}
-
-DLLEXPORT FPDF_CLIPPATH STDCALL FPDF_CreateClipPath(float left,
- float bottom,
- float right,
- float top) {
- CPDF_ClipPath* pNewClipPath = new CPDF_ClipPath();
- pNewClipPath->GetModify();
- CPDF_Path Path;
- Path.GetModify();
- Path.AppendRect(left, bottom, right, top);
- pNewClipPath->AppendPath(Path, FXFILL_ALTERNATE, FALSE);
- return pNewClipPath;
-}
-
-DLLEXPORT void STDCALL FPDF_DestroyClipPath(FPDF_CLIPPATH clipPath) {
- delete (CPDF_ClipPath*)clipPath;
-}
-
-void OutputPath(CFX_ByteTextBuf& buf, CPDF_Path path) {
- const CFX_PathData* pPathData = path;
- if (!pPathData)
- return;
-
- FX_PATHPOINT* pPoints = pPathData->GetPoints();
-
- if (path.IsRect()) {
- buf << (pPoints[0].m_PointX) << " " << (pPoints[0].m_PointY) << " "
- << (pPoints[2].m_PointX - pPoints[0].m_PointX) << " "
- << (pPoints[2].m_PointY - pPoints[0].m_PointY) << " re\n";
- return;
- }
-
- CFX_ByteString temp;
- for (int i = 0; i < pPathData->GetPointCount(); i++) {
- buf << (pPoints[i].m_PointX) << " " << (pPoints[i].m_PointY);
- int point_type = pPoints[i].m_Flag & FXPT_TYPE;
- if (point_type == FXPT_MOVETO) {
- buf << " m\n";
- } else if (point_type == FXPT_BEZIERTO) {
- buf << " " << (pPoints[i + 1].m_PointX) << " "
- << (pPoints[i + 1].m_PointY) << " " << (pPoints[i + 2].m_PointX)
- << " " << (pPoints[i + 2].m_PointY);
- if (pPoints[i + 2].m_Flag & FXPT_CLOSEFIGURE)
- buf << " c h\n";
- else
- buf << " c\n";
- i += 2;
- } else if (point_type == FXPT_LINETO) {
- if (pPoints[i].m_Flag & FXPT_CLOSEFIGURE)
- buf << " l h\n";
- else
- buf << " l\n";
- }
- }
-}
-
-DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
- FPDF_CLIPPATH clipPath) {
- CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
- if (!pPage)
- return;
-
- CPDF_Dictionary* pPageDic = pPage->m_pFormDict;
- CPDF_Object* pContentObj =
- pPageDic ? pPageDic->GetElement("Contents") : nullptr;
- if (!pContentObj)
- pContentObj = pPageDic ? pPageDic->GetArrayBy("Contents") : nullptr;
- if (!pContentObj)
- return;
-
- CFX_ByteTextBuf strClip;
- CPDF_ClipPath* pClipPath = (CPDF_ClipPath*)clipPath;
- FX_DWORD i;
- for (i = 0; i < pClipPath->GetPathCount(); i++) {
- CPDF_Path path = pClipPath->GetPath(i);
- int iClipType = pClipPath->GetClipType(i);
- if (path.GetPointCount() == 0) {
- // Empty clipping (totally clipped out)
- strClip << "0 0 m W n ";
- } else {
- OutputPath(strClip, path);
- if (iClipType == FXFILL_WINDING)
- strClip << "W n\n";
- else
- strClip << "W* n\n";
- }
- }
- CPDF_Dictionary* pDic = new CPDF_Dictionary;
- CPDF_Stream* pStream = new CPDF_Stream(nullptr, 0, pDic);
- pStream->SetData(strClip.GetBuffer(), strClip.GetSize(), FALSE, FALSE);
- CPDF_Document* pDoc = pPage->m_pDocument;
- if (!pDoc)
- return;
- pDoc->AddIndirectObject(pStream);
-
- CPDF_Array* pContentArray = nullptr;
- if (CPDF_Array* pArray = ToArray(pContentObj)) {
- pContentArray = pArray;
- CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
- pContentArray->InsertAt(0, pRef);
- } else if (CPDF_Reference* pReference = ToReference(pContentObj)) {
- CPDF_Object* pDirectObj = pReference->GetDirect();
- if (pDirectObj) {
- if (CPDF_Array* pArray = pDirectObj->AsArray()) {
- pContentArray = pArray;
- CPDF_Reference* pRef = new CPDF_Reference(pDoc, pStream->GetObjNum());
- pContentArray->InsertAt(0, pRef);
- } else if (pDirectObj->IsStream()) {
- pContentArray = new CPDF_Array();
- pContentArray->AddReference(pDoc, pStream->GetObjNum());
- pContentArray->AddReference(pDoc, pDirectObj->GetObjNum());
- pPageDic->SetAtReference("Contents", pDoc,
- pDoc->AddIndirectObject(pContentArray));
- }
- }
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 17:14:49 +0000