blob: 070dadd31fccc571c95bfdb305b5b3107f894b31 [file] [log] [blame]
// 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.
#include <limits>
#include <memory>
#include <string>
#include <utility>
#include <vector>
#include "build/build_config.h"
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/page/cpdf_pageobject.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_stream.h"
#include "core/fpdfapi/parser/cpdf_stream_acc.h"
#include "core/fxcrt/fx_codepage.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxge/fx_font.h"
#include "fpdfsdk/cpdfsdk_helpers.h"
#include "public/cpp/fpdf_scopers.h"
#include "public/fpdf_annot.h"
#include "public/fpdf_edit.h"
#include "public/fpdfview.h"
#include "testing/embedder_test.h"
#include "testing/embedder_test_constants.h"
#include "testing/fx_string_testhelpers.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/utils/file_util.h"
#include "testing/utils/hash.h"
#include "testing/utils/path_service.h"
#include "third_party/base/check.h"
using pdfium::kHelloWorldChecksum;
namespace {
const char kAllRemovedChecksum[] = "eee4600ac08b458ac7ac2320e225674c";
const wchar_t kBottomText[] = L"I'm at the bottom of the page";
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kBottomTextChecksum[] =
"81636489006a31fcb00cf29efcdf7909";
#else
static constexpr char kBottomTextChecksum[] =
"891dcb6e914c8360998055f1f47c9727";
#endif
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
const char kFirstRemovedChecksum[] = "a1dc2812692fcc7ee4f01ca77435df9d";
#else
const char kFirstRemovedChecksum[] = "e1477dc3b5b3b9c560814c4d1135a02b";
#endif
const wchar_t kLoadedFontText[] = L"I am testing my loaded font, WEE.";
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kLoadedFontTextChecksum[] = "d58570cc045dfb818b92cbabbd1a364c";
#elif BUILDFLAG(IS_APPLE)
const char kLoadedFontTextChecksum[] = "0f3e4a7d71f9e7eb8a1a0d69403b9848";
#else
const char kLoadedFontTextChecksum[] = "d58570cc045dfb818b92cbabbd1a364c";
#endif
const char kRedRectangleChecksum[] = "66d02eaa6181e2c069ce2ea99beda497";
// In embedded_images.pdf.
const char kEmbeddedImage33Checksum[] = "cb3637934bb3b95a6e4ae1ea9eb9e56e";
} // namespace
class FPDFEditEmbedderTest : public EmbedderTest {
protected:
FPDF_DOCUMENT CreateNewDocument() {
CreateEmptyDocumentWithoutFormFillEnvironment();
cpdf_doc_ = CPDFDocumentFromFPDFDocument(document());
return document();
}
void CheckFontDescriptor(const CPDF_Dictionary* font_dict,
int font_type,
bool bold,
bool italic,
pdfium::span<const uint8_t> span) {
const CPDF_Dictionary* font_desc = font_dict->GetDictFor("FontDescriptor");
ASSERT_TRUE(font_desc);
EXPECT_EQ("FontDescriptor", font_desc->GetNameFor("Type"));
ByteString font_name = font_desc->GetNameFor("FontName");
EXPECT_FALSE(font_name.IsEmpty());
EXPECT_EQ(font_dict->GetNameFor("BaseFont"), font_name);
// Check that the font descriptor has the required keys according to spec
// 1.7 Table 5.19
ASSERT_TRUE(font_desc->KeyExist("Flags"));
int font_flags = font_desc->GetIntegerFor("Flags");
EXPECT_EQ(bold, FontStyleIsForceBold(font_flags));
EXPECT_EQ(italic, FontStyleIsItalic(font_flags));
EXPECT_TRUE(FontStyleIsNonSymbolic(font_flags));
ASSERT_TRUE(font_desc->KeyExist("FontBBox"));
const CPDF_Array* fontBBox = font_desc->GetArrayFor("FontBBox");
ASSERT_TRUE(fontBBox);
EXPECT_EQ(4u, fontBBox->size());
// Check that the coordinates are in the preferred order according to spec
// 1.7 Section 3.8.4
EXPECT_TRUE(fontBBox->GetIntegerAt(0) < fontBBox->GetIntegerAt(2));
EXPECT_TRUE(fontBBox->GetIntegerAt(1) < fontBBox->GetIntegerAt(3));
EXPECT_TRUE(font_desc->KeyExist("ItalicAngle"));
EXPECT_TRUE(font_desc->KeyExist("Ascent"));
EXPECT_TRUE(font_desc->KeyExist("Descent"));
EXPECT_TRUE(font_desc->KeyExist("CapHeight"));
EXPECT_TRUE(font_desc->KeyExist("StemV"));
ByteString present("FontFile");
ByteString absent("FontFile2");
if (font_type == FPDF_FONT_TRUETYPE)
std::swap(present, absent);
EXPECT_TRUE(font_desc->KeyExist(present));
EXPECT_FALSE(font_desc->KeyExist(absent));
auto streamAcc =
pdfium::MakeRetain<CPDF_StreamAcc>(font_desc->GetStreamFor(present));
streamAcc->LoadAllDataRaw();
// Check that the font stream is the one that was provided
ASSERT_EQ(span.size(), streamAcc->GetSize());
if (font_type == FPDF_FONT_TRUETYPE) {
ASSERT_EQ(static_cast<int>(span.size()),
streamAcc->GetDict()->GetIntegerFor("Length1"));
}
const uint8_t* stream_data = streamAcc->GetData();
for (size_t j = 0; j < span.size(); j++)
EXPECT_EQ(span[j], stream_data[j]) << " at byte " << j;
}
void CheckCompositeFontWidths(const CPDF_Array* widths_array,
CPDF_Font* typed_font) {
// Check that W array is in a format that conforms to PDF spec 1.7 section
// "Glyph Metrics in CIDFonts" (these checks are not
// implementation-specific).
EXPECT_GT(widths_array->size(), 1u);
int num_cids_checked = 0;
int cur_cid = 0;
for (size_t idx = 0; idx < widths_array->size(); idx++) {
int cid = widths_array->GetNumberAt(idx);
EXPECT_GE(cid, cur_cid);
ASSERT_FALSE(++idx == widths_array->size());
const CPDF_Object* next = widths_array->GetObjectAt(idx);
if (next->IsArray()) {
// We are in the c [w1 w2 ...] case
const CPDF_Array* arr = next->AsArray();
int cnt = static_cast<int>(arr->size());
size_t inner_idx = 0;
for (cur_cid = cid; cur_cid < cid + cnt; cur_cid++) {
int width = arr->GetNumberAt(inner_idx++);
EXPECT_EQ(width, typed_font->GetCharWidthF(cur_cid))
<< " at cid " << cur_cid;
}
num_cids_checked += cnt;
continue;
}
// Otherwise, are in the c_first c_last w case.
ASSERT_TRUE(next->IsNumber());
int last_cid = next->AsNumber()->GetInteger();
ASSERT_FALSE(++idx == widths_array->size());
int width = widths_array->GetNumberAt(idx);
for (cur_cid = cid; cur_cid <= last_cid; cur_cid++) {
EXPECT_EQ(width, typed_font->GetCharWidthF(cur_cid))
<< " at cid " << cur_cid;
}
num_cids_checked += last_cid - cid + 1;
}
// Make sure we have a good amount of cids described
EXPECT_GT(num_cids_checked, 200);
}
CPDF_Document* cpdf_doc() { return cpdf_doc_; }
private:
CPDF_Document* cpdf_doc_;
};
namespace {
const char kExpectedPDF[] =
"%PDF-1.7\r\n"
"%\xA1\xB3\xC5\xD7\r\n"
"1 0 obj\r\n"
"<</Pages 2 0 R /Type/Catalog>>\r\n"
"endobj\r\n"
"2 0 obj\r\n"
"<</Count 1/Kids\\[ 4 0 R \\]/Type/Pages>>\r\n"
"endobj\r\n"
"3 0 obj\r\n"
"<</CreationDate\\(D:.*\\)/Creator\\(PDFium\\)>>\r\n"
"endobj\r\n"
"4 0 obj\r\n"
"<</MediaBox\\[ 0 0 640 480\\]/Parent 2 0 R "
"/Resources<</ExtGState<</FXE1 5 0 R >>>>"
"/Rotate 0/Type/Page"
">>\r\n"
"endobj\r\n"
"5 0 obj\r\n"
"<</BM/Normal/CA 1/ca 1>>\r\n"
"endobj\r\n"
"xref\r\n"
"0 6\r\n"
"0000000000 65535 f\r\n"
"0000000017 00000 n\r\n"
"0000000066 00000 n\r\n"
"0000000122 00000 n\r\n"
"0000000192 00000 n\r\n"
"0000000311 00000 n\r\n"
"trailer\r\n"
"<<\r\n"
"/Root 1 0 R\r\n"
"/Info 3 0 R\r\n"
"/Size 6/ID\\[<.*><.*>\\]>>\r\n"
"startxref\r\n"
"354\r\n"
"%%EOF\r\n";
} // namespace
TEST_F(FPDFEditEmbedderTest, EmbedNotoSansSCFont) {
CreateEmptyDocument();
ScopedFPDFPage page(FPDFPage_New(document(), 0, 400, 400));
std::string font_path;
ASSERT_TRUE(PathService::GetThirdPartyFilePath(
"NotoSansCJK/NotoSansSC-Regular.subset.otf", &font_path));
size_t file_length = 0;
std::unique_ptr<char, pdfium::FreeDeleter> font_data =
GetFileContents(font_path.c_str(), &file_length);
ASSERT_TRUE(font_data);
ScopedFPDFFont font(FPDFText_LoadFont(
document(), reinterpret_cast<const uint8_t*>(font_data.get()),
file_length, FPDF_FONT_TRUETYPE, /*cid=*/true));
FPDF_PAGEOBJECT text_object =
FPDFPageObj_CreateTextObj(document(), font.get(), 20.0f);
EXPECT_TRUE(text_object);
// Test the characters which are either mapped to one single unicode or
// multiple unicodes in the embedded font.
ScopedFPDFWideString text = GetFPDFWideString(L"这是第一句。 这是第二行。");
EXPECT_TRUE(FPDFText_SetText(text_object, text.get()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 50, 200);
FPDFPage_InsertObject(page.get(), text_object);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
const char kChecksum[] = "9a31fb87d1c6d2346bba22d1196041cd";
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
CompareBitmap(page_bitmap.get(), 400, 400, kChecksum);
ASSERT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(400, 400, kChecksum);
}
TEST_F(FPDFEditEmbedderTest, EmbedNotoSansSCFontWithCharcodes) {
CreateEmptyDocument();
ScopedFPDFPage page(FPDFPage_New(document(), 0, 400, 400));
std::string font_path;
ASSERT_TRUE(PathService::GetThirdPartyFilePath(
"NotoSansCJK/NotoSansSC-Regular.subset.otf", &font_path));
size_t file_length = 0;
std::unique_ptr<char, pdfium::FreeDeleter> font_data =
GetFileContents(font_path.c_str(), &file_length);
ASSERT_TRUE(font_data);
ScopedFPDFFont font(FPDFText_LoadFont(
document(), reinterpret_cast<const uint8_t*>(font_data.get()),
file_length, FPDF_FONT_TRUETYPE, /*cid=*/true));
FPDF_PAGEOBJECT text_object =
FPDFPageObj_CreateTextObj(document(), font.get(), 20.0f);
EXPECT_TRUE(text_object);
// Same as `text` in the EmbedNotoSansSCFont test case above.
const std::vector<uint32_t> charcodes = {9, 6, 7, 3, 5, 2, 1,
9, 6, 7, 4, 8, 2};
EXPECT_TRUE(
FPDFText_SetCharcodes(text_object, charcodes.data(), charcodes.size()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 50, 200);
FPDFPage_InsertObject(page.get(), text_object);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
const char kChecksum[] = "9a31fb87d1c6d2346bba22d1196041cd";
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
CompareBitmap(page_bitmap.get(), 400, 400, kChecksum);
ASSERT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(400, 400, kChecksum);
}
TEST_F(FPDFEditEmbedderTest, EmptyCreation) {
CreateEmptyDocument();
FPDF_PAGE page = FPDFPage_New(document(), 0, 640.0, 480.0);
EXPECT_TRUE(page);
// The FPDFPage_GenerateContent call should do nothing.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
EXPECT_THAT(GetString(), testing::MatchesRegex(std::string(
kExpectedPDF, sizeof(kExpectedPDF))));
FPDF_ClosePage(page);
}
// Regression test for https://crbug.com/667012
TEST_F(FPDFEditEmbedderTest, RasterizePDF) {
const char kAllBlackMd5sum[] = "5708fc5c4a8bd0abde99c8e8f0390615";
// Get the bitmap for the original document.
ScopedFPDFBitmap orig_bitmap;
{
ASSERT_TRUE(OpenDocument("black.pdf"));
FPDF_PAGE orig_page = LoadPage(0);
ASSERT_TRUE(orig_page);
orig_bitmap = RenderLoadedPage(orig_page);
CompareBitmap(orig_bitmap.get(), 612, 792, kAllBlackMd5sum);
UnloadPage(orig_page);
}
// Create a new document from |orig_bitmap| and save it.
{
FPDF_DOCUMENT temp_doc = FPDF_CreateNewDocument();
FPDF_PAGE temp_page = FPDFPage_New(temp_doc, 0, 612, 792);
// Add the bitmap to an image object and add the image object to the output
// page.
FPDF_PAGEOBJECT temp_img = FPDFPageObj_NewImageObj(temp_doc);
EXPECT_TRUE(
FPDFImageObj_SetBitmap(&temp_page, 1, temp_img, orig_bitmap.get()));
static constexpr FS_MATRIX kLetterScaleMatrix{612, 0, 0, 792, 0, 0};
EXPECT_TRUE(FPDFPageObj_SetMatrix(temp_img, &kLetterScaleMatrix));
FPDFPage_InsertObject(temp_page, temp_img);
EXPECT_TRUE(FPDFPage_GenerateContent(temp_page));
EXPECT_TRUE(FPDF_SaveAsCopy(temp_doc, this, 0));
FPDF_ClosePage(temp_page);
FPDF_CloseDocument(temp_doc);
}
// Get the generated content. Make sure it is at least as big as the original
// PDF.
EXPECT_GT(GetString().size(), 923u);
VerifySavedDocument(612, 792, kAllBlackMd5sum);
}
TEST_F(FPDFEditEmbedderTest, AddPaths) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
ASSERT_TRUE(page);
// We will first add a red rectangle
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(10, 10, 20, 20);
ASSERT_TRUE(red_rect);
// Expect false when trying to set colors out of range
EXPECT_FALSE(FPDFPageObj_SetStrokeColor(red_rect, 100, 100, 100, 300));
EXPECT_FALSE(FPDFPageObj_SetFillColor(red_rect, 200, 256, 200, 0));
// Fill rectangle with red and insert to the page
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
int fillmode = FPDF_FILLMODE_NONE;
FPDF_BOOL stroke = true;
EXPECT_TRUE(FPDFPath_GetDrawMode(red_rect, &fillmode, &stroke));
EXPECT_EQ(FPDF_FILLMODE_ALTERNATE, fillmode);
EXPECT_FALSE(stroke);
static constexpr FS_MATRIX kMatrix = {1, 2, 3, 4, 5, 6};
EXPECT_TRUE(FPDFPageObj_SetMatrix(red_rect, &kMatrix));
FS_MATRIX matrix;
EXPECT_TRUE(FPDFPageObj_GetMatrix(red_rect, &matrix));
EXPECT_FLOAT_EQ(1.0f, matrix.a);
EXPECT_FLOAT_EQ(2.0f, matrix.b);
EXPECT_FLOAT_EQ(3.0f, matrix.c);
EXPECT_FLOAT_EQ(4.0f, matrix.d);
EXPECT_FLOAT_EQ(5.0f, matrix.e);
EXPECT_FLOAT_EQ(6.0f, matrix.f);
// Set back the identity matrix.
matrix = {1.0f, 0.0f, 0.0f, 1.0f, 0.0f, 0.0f};
EXPECT_TRUE(FPDFPageObj_SetMatrix(red_rect, &matrix));
FPDFPage_InsertObject(page, red_rect);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792, kRedRectangleChecksum);
}
// Now add to that a green rectangle with some medium alpha
FPDF_PAGEOBJECT green_rect = FPDFPageObj_CreateNewRect(100, 100, 40, 40);
EXPECT_TRUE(FPDFPageObj_SetFillColor(green_rect, 0, 255, 0, 128));
// Make sure the type of the rectangle is a path.
EXPECT_EQ(FPDF_PAGEOBJ_PATH, FPDFPageObj_GetType(green_rect));
// Make sure we get back the same color we set previously.
unsigned int R;
unsigned int G;
unsigned int B;
unsigned int A;
EXPECT_TRUE(FPDFPageObj_GetFillColor(green_rect, &R, &G, &B, &A));
EXPECT_EQ(0u, R);
EXPECT_EQ(255u, G);
EXPECT_EQ(0u, B);
EXPECT_EQ(128u, A);
// Make sure the path has 5 points (1 CFX_Path::Point::Type::kMove and 4
// CFX_Path::Point::Type::kLine).
ASSERT_EQ(5, FPDFPath_CountSegments(green_rect));
// Verify actual coordinates.
FPDF_PATHSEGMENT segment = FPDFPath_GetPathSegment(green_rect, 0);
float x;
float y;
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(100, x);
EXPECT_EQ(100, y);
EXPECT_EQ(FPDF_SEGMENT_MOVETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(green_rect, 1);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(100, x);
EXPECT_EQ(140, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(green_rect, 2);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(140, x);
EXPECT_EQ(140, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(green_rect, 3);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(140, x);
EXPECT_EQ(100, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(green_rect, 4);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(100, x);
EXPECT_EQ(100, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_TRUE(FPDFPathSegment_GetClose(segment));
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect, FPDF_FILLMODE_WINDING, 0));
FPDFPage_InsertObject(page, green_rect);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792,
"7b0b87604594e773add528fae567a558");
}
// Add a black triangle.
FPDF_PAGEOBJECT black_path = FPDFPageObj_CreateNewPath(400, 100);
EXPECT_TRUE(FPDFPageObj_SetFillColor(black_path, 0, 0, 0, 200));
EXPECT_TRUE(FPDFPath_SetDrawMode(black_path, FPDF_FILLMODE_ALTERNATE, 0));
EXPECT_TRUE(FPDFPath_LineTo(black_path, 400, 200));
EXPECT_TRUE(FPDFPath_LineTo(black_path, 300, 100));
EXPECT_TRUE(FPDFPath_Close(black_path));
// Make sure the path has 3 points (1 CFX_Path::Point::Type::kMove and 2
// CFX_Path::Point::Type::kLine).
ASSERT_EQ(3, FPDFPath_CountSegments(black_path));
// Verify actual coordinates.
segment = FPDFPath_GetPathSegment(black_path, 0);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(400, x);
EXPECT_EQ(100, y);
EXPECT_EQ(FPDF_SEGMENT_MOVETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(black_path, 1);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(400, x);
EXPECT_EQ(200, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(black_path, 2);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(300, x);
EXPECT_EQ(100, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_TRUE(FPDFPathSegment_GetClose(segment));
// Make sure out of bounds index access fails properly.
EXPECT_FALSE(FPDFPath_GetPathSegment(black_path, 3));
FPDFPage_InsertObject(page, black_path);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792,
"eadc8020a14dfcf091da2688733d8806");
}
// Now add a more complex blue path.
FPDF_PAGEOBJECT blue_path = FPDFPageObj_CreateNewPath(200, 200);
EXPECT_TRUE(FPDFPageObj_SetFillColor(blue_path, 0, 0, 255, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(blue_path, FPDF_FILLMODE_WINDING, 0));
EXPECT_TRUE(FPDFPath_LineTo(blue_path, 230, 230));
EXPECT_TRUE(FPDFPath_BezierTo(blue_path, 250, 250, 280, 280, 300, 300));
EXPECT_TRUE(FPDFPath_LineTo(blue_path, 325, 325));
EXPECT_TRUE(FPDFPath_LineTo(blue_path, 350, 325));
EXPECT_TRUE(FPDFPath_BezierTo(blue_path, 375, 330, 390, 360, 400, 400));
EXPECT_TRUE(FPDFPath_Close(blue_path));
FPDFPage_InsertObject(page, blue_path);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kLastChecksum[] = "ed14c60702b1489c597c7d46ece7f86d";
#else
static constexpr char kLastChecksum[] = "9823e1a21bd9b72b6a442ba4f12af946";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792, kLastChecksum);
}
// Now save the result, closing the page and document
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
FPDF_ClosePage(page);
// Render the saved result
VerifySavedDocument(612, 792, kLastChecksum);
}
TEST_F(FPDFEditEmbedderTest, ClipPath) {
// Load document with a clipped rectangle.
ASSERT_TRUE(OpenDocument("clip_path.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(1, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT triangle = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(triangle);
// Test that we got the expected triangle.
ASSERT_EQ(4, FPDFPath_CountSegments(triangle));
FPDF_PATHSEGMENT segment = FPDFPath_GetPathSegment(triangle, 0);
float x;
float y;
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(10, x);
EXPECT_EQ(10, y);
EXPECT_EQ(FPDF_SEGMENT_MOVETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(triangle, 1);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(25, x);
EXPECT_EQ(40, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(triangle, 2);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(40, x);
EXPECT_EQ(10, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(triangle, 3);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_TRUE(FPDFPathSegment_GetClose(segment));
// Test FPDFPageObj_GetClipPath().
ASSERT_EQ(nullptr, FPDFPageObj_GetClipPath(nullptr));
FPDF_CLIPPATH clip_path = FPDFPageObj_GetClipPath(triangle);
ASSERT_TRUE(clip_path);
// Test FPDFClipPath_CountPaths().
ASSERT_EQ(-1, FPDFClipPath_CountPaths(nullptr));
ASSERT_EQ(1, FPDFClipPath_CountPaths(clip_path));
// Test FPDFClipPath_CountPathSegments().
ASSERT_EQ(-1, FPDFClipPath_CountPathSegments(nullptr, 0));
ASSERT_EQ(-1, FPDFClipPath_CountPathSegments(clip_path, -1));
ASSERT_EQ(-1, FPDFClipPath_CountPathSegments(clip_path, 1));
ASSERT_EQ(4, FPDFClipPath_CountPathSegments(clip_path, 0));
// FPDFClipPath_GetPathSegment() negative testing.
ASSERT_EQ(nullptr, FPDFClipPath_GetPathSegment(nullptr, 0, 0));
ASSERT_EQ(nullptr, FPDFClipPath_GetPathSegment(clip_path, -1, 0));
ASSERT_EQ(nullptr, FPDFClipPath_GetPathSegment(clip_path, 1, 0));
ASSERT_EQ(nullptr, FPDFClipPath_GetPathSegment(clip_path, 0, -1));
ASSERT_EQ(nullptr, FPDFClipPath_GetPathSegment(clip_path, 0, 4));
// FPDFClipPath_GetPathSegment() positive testing.
segment = FPDFClipPath_GetPathSegment(clip_path, 0, 0);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(10, x);
EXPECT_EQ(15, y);
EXPECT_EQ(FPDF_SEGMENT_MOVETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFClipPath_GetPathSegment(clip_path, 0, 1);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(40, x);
EXPECT_EQ(15, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFClipPath_GetPathSegment(clip_path, 0, 2);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(40, x);
EXPECT_EQ(35, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFClipPath_GetPathSegment(clip_path, 0, 3);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_EQ(10, x);
EXPECT_EQ(35, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, BUG_1399) {
// Load document with a clipped rectangle.
ASSERT_TRUE(OpenDocument("bug_1399.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(7, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT obj = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(obj);
ASSERT_EQ(2, FPDFPath_CountSegments(obj));
FPDF_PATHSEGMENT segment = FPDFPath_GetPathSegment(obj, 0);
float x;
float y;
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_FLOAT_EQ(107.718f, x);
EXPECT_FLOAT_EQ(719.922f, y);
EXPECT_EQ(FPDF_SEGMENT_MOVETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
segment = FPDFPath_GetPathSegment(obj, 1);
EXPECT_TRUE(FPDFPathSegment_GetPoint(segment, &x, &y));
EXPECT_FLOAT_EQ(394.718f, x);
EXPECT_FLOAT_EQ(719.922f, y);
EXPECT_EQ(FPDF_SEGMENT_LINETO, FPDFPathSegment_GetType(segment));
EXPECT_FALSE(FPDFPathSegment_GetClose(segment));
FPDF_CLIPPATH clip_path = FPDFPageObj_GetClipPath(obj);
ASSERT_TRUE(clip_path);
EXPECT_EQ(-1, FPDFClipPath_CountPaths(clip_path));
EXPECT_EQ(-1, FPDFClipPath_CountPathSegments(clip_path, 0));
EXPECT_FALSE(FPDFClipPath_GetPathSegment(clip_path, 0, 0));
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, BUG_1549) {
static const char kOriginalChecksum[] = "126366fb95e6caf8ea196780075b22b2";
static const char kRemovedChecksum[] = "6ec2f27531927882624b37bc7d8e12f4";
ASSERT_TRUE(OpenDocument("bug_1549.pdf"));
FPDF_PAGE page = LoadPage(0);
{
ScopedFPDFBitmap bitmap = RenderLoadedPage(page);
CompareBitmap(bitmap.get(), 100, 150, kOriginalChecksum);
ScopedFPDFPageObject obj(FPDFPage_GetObject(page, 0));
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj.get()));
ASSERT_TRUE(FPDFPage_RemoveObject(page, obj.get()));
}
ASSERT_TRUE(FPDFPage_GenerateContent(page));
{
ScopedFPDFBitmap bitmap = RenderLoadedPage(page);
CompareBitmap(bitmap.get(), 100, 150, kRemovedChecksum);
}
ASSERT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// TODO(crbug.com/pdfium/1549): Should be `kRemovedChecksum`.
VerifySavedDocument(100, 150, "4f9889cd5993db20f1ab37d677ac8d26");
}
TEST_F(FPDFEditEmbedderTest, SetText) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Get the "Hello, world!" text object and change it.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
ScopedFPDFWideString text1 = GetFPDFWideString(L"Changed for SetText test");
EXPECT_TRUE(FPDFText_SetText(page_object, text1.get()));
// Verify the "Hello, world!" text is gone and "Changed for SetText test" is
// now displayed.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
const char kChangedChecksum[] = "b720e83476fd6819d47c533f1f43c728";
#else
const char kChangedChecksum[] = "9a85b9354a69c61772ed24151c140f46";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kChangedChecksum);
}
// Now save the result.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the changes were kept in the saved .pdf.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(2, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kChangedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, SetCharcodesBadParams) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
const uint32_t kDummyValue = 42;
EXPECT_FALSE(FPDFText_SetCharcodes(nullptr, nullptr, 0));
EXPECT_FALSE(FPDFText_SetCharcodes(nullptr, nullptr, 1));
EXPECT_FALSE(FPDFText_SetCharcodes(nullptr, &kDummyValue, 0));
EXPECT_FALSE(FPDFText_SetCharcodes(nullptr, &kDummyValue, 1));
EXPECT_FALSE(FPDFText_SetCharcodes(page_object, nullptr, 1));
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, SetTextKeepClippingPath) {
// Load document with some text, with parts clipped.
ASSERT_TRUE(OpenDocument("bug_1558.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kOriginalChecksum[] =
"ae7a25c85e0e2dd0c5cb9dd5cd37f6df";
#else
static constexpr char kOriginalChecksum[] =
"7af7fe5b281298261eb66ac2d22f5054";
#endif
{
// When opened before any editing and saving, the clipping path is rendered.
ScopedFPDFBitmap original_bitmap = RenderPage(page);
CompareBitmap(original_bitmap.get(), 200, 200, kOriginalChecksum);
}
// "Change" the text in the objects to their current values to force them to
// regenerate when saving.
{
ScopedFPDFTextPage text_page(FPDFText_LoadPage(page));
ASSERT_TRUE(text_page);
const int obj_count = FPDFPage_CountObjects(page);
ASSERT_EQ(2, obj_count);
for (int i = 0; i < obj_count; ++i) {
FPDF_PAGEOBJECT text_obj = FPDFPage_GetObject(page, i);
ASSERT_EQ(FPDF_PAGEOBJ_TEXT, FPDFPageObj_GetType(text_obj));
unsigned long size =
FPDFTextObj_GetText(text_obj, text_page.get(),
/*buffer=*/nullptr, /*length=*/0);
ASSERT_GT(size, 0u);
std::vector<FPDF_WCHAR> buffer = GetFPDFWideStringBuffer(size);
ASSERT_EQ(size, FPDFTextObj_GetText(text_obj, text_page.get(),
buffer.data(), size));
EXPECT_TRUE(FPDFText_SetText(text_obj, buffer.data()));
}
}
{
// After editing but before saving, the clipping path is retained.
ScopedFPDFBitmap edited_bitmap = RenderPage(page);
CompareBitmap(edited_bitmap.get(), 200, 200, kOriginalChecksum);
}
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Open the saved copy and render it.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
{
ScopedFPDFBitmap saved_bitmap = RenderSavedPage(saved_page);
CompareBitmap(saved_bitmap.get(), 200, 200, kOriginalChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, BUG_1574) {
// Load document with some text within a clipping path.
ASSERT_TRUE(OpenDocument("bug_1574.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kOriginalChecksum[] =
"1226bc2b8072622eb28f52321876e814";
#else
static constexpr char kOriginalChecksum[] =
"c5241eef60b9eac68ed1f2a5fd002703";
#endif
{
// When opened before any editing and saving, the text object is rendered.
ScopedFPDFBitmap original_bitmap = RenderPage(page);
CompareBitmap(original_bitmap.get(), 200, 300, kOriginalChecksum);
}
// "Change" the text in the objects to their current values to force them to
// regenerate when saving.
{
ScopedFPDFTextPage text_page(FPDFText_LoadPage(page));
ASSERT_TRUE(text_page);
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT text_obj = FPDFPage_GetObject(page, 1);
ASSERT_EQ(FPDF_PAGEOBJ_TEXT, FPDFPageObj_GetType(text_obj));
unsigned long size = FPDFTextObj_GetText(text_obj, text_page.get(),
/*buffer=*/nullptr, /*length=*/0);
ASSERT_GT(size, 0u);
std::vector<FPDF_WCHAR> buffer = GetFPDFWideStringBuffer(size);
ASSERT_EQ(size, FPDFTextObj_GetText(text_obj, text_page.get(),
buffer.data(), size));
EXPECT_TRUE(FPDFText_SetText(text_obj, buffer.data()));
}
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Open the saved copy and render it.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
{
ScopedFPDFBitmap saved_bitmap = RenderSavedPage(saved_page);
CompareBitmap(saved_bitmap.get(), 200, 300, kOriginalChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemovePageObject) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Show what the original file looks like.
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloWorldChecksum);
}
// Get the "Hello, world!" text object and remove it.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
// Verify the "Hello, world!" text is gone.
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kFirstRemovedChecksum);
}
ASSERT_EQ(1, FPDFPage_CountObjects(page));
UnloadPage(page);
FPDFPageObj_Destroy(page_object);
}
void CheckMarkCounts(FPDF_PAGE page,
int start_from,
int expected_object_count,
size_t expected_prime_count,
size_t expected_square_count,
size_t expected_greater_than_ten_count,
size_t expected_bounds_count) {
int object_count = FPDFPage_CountObjects(page);
ASSERT_EQ(expected_object_count, object_count);
size_t prime_count = 0;
size_t square_count = 0;
size_t greater_than_ten_count = 0;
size_t bounds_count = 0;
for (int i = 0; i < object_count; ++i) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
int mark_count = FPDFPageObj_CountMarks(page_object);
for (int j = 0; j < mark_count; ++j) {
FPDF_PAGEOBJECTMARK mark = FPDFPageObj_GetMark(page_object, j);
char buffer[256];
unsigned long name_len = 999u;
ASSERT_TRUE(
FPDFPageObjMark_GetName(mark, buffer, sizeof(buffer), &name_len));
EXPECT_GT(name_len, 0u);
EXPECT_NE(999u, name_len);
std::wstring name =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
if (name == L"Prime") {
prime_count++;
} else if (name == L"Square") {
square_count++;
int expected_square = start_from + i;
EXPECT_EQ(1, FPDFPageObjMark_CountParams(mark));
unsigned long get_param_key_return = 999u;
ASSERT_TRUE(FPDFPageObjMark_GetParamKey(mark, 0, buffer, sizeof(buffer),
&get_param_key_return));
EXPECT_EQ((6u + 1u) * 2u, get_param_key_return);
std::wstring key =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
EXPECT_EQ(L"Factor", key);
EXPECT_EQ(FPDF_OBJECT_NUMBER,
FPDFPageObjMark_GetParamValueType(mark, "Factor"));
int square_root;
EXPECT_TRUE(
FPDFPageObjMark_GetParamIntValue(mark, "Factor", &square_root));
EXPECT_EQ(expected_square, square_root * square_root);
} else if (name == L"GreaterThanTen") {
greater_than_ten_count++;
} else if (name == L"Bounds") {
bounds_count++;
EXPECT_EQ(1, FPDFPageObjMark_CountParams(mark));
unsigned long get_param_key_return = 999u;
ASSERT_TRUE(FPDFPageObjMark_GetParamKey(mark, 0, buffer, sizeof(buffer),
&get_param_key_return));
EXPECT_EQ((8u + 1u) * 2u, get_param_key_return);
std::wstring key =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
EXPECT_EQ(L"Position", key);
EXPECT_EQ(FPDF_OBJECT_STRING,
FPDFPageObjMark_GetParamValueType(mark, "Position"));
unsigned long length;
EXPECT_TRUE(FPDFPageObjMark_GetParamStringValue(
mark, "Position", buffer, sizeof(buffer), &length));
ASSERT_GT(length, 0u);
std::wstring value =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
// "Position" can be "First", "Last", or "End".
if (i == 0) {
EXPECT_EQ((5u + 1u) * 2u, length);
EXPECT_EQ(L"First", value);
} else if (i == object_count - 1) {
if (length == (4u + 1u) * 2u) {
EXPECT_EQ(L"Last", value);
} else if (length == (3u + 1u) * 2u) {
EXPECT_EQ(L"End", value);
} else {
FAIL();
}
} else {
FAIL();
}
} else {
FAIL();
}
}
}
// Expect certain number of tagged objects. The test file contains strings
// from 1 to 19.
EXPECT_EQ(expected_prime_count, prime_count);
EXPECT_EQ(expected_square_count, square_count);
EXPECT_EQ(expected_greater_than_ten_count, greater_than_ten_count);
EXPECT_EQ(expected_bounds_count, bounds_count);
}
TEST_F(FPDFEditEmbedderTest, ReadMarkedObjectsIndirectDict) {
// Load document with some text marked with an indirect property.
ASSERT_TRUE(OpenDocument("text_in_page_marked_indirect.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
CheckMarkCounts(page, 1, 19, 8, 4, 9, 1);
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, RemoveMarkedObjectsPrime) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("text_in_page_marked.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Show what the original file looks like.
{
#if defined(_SKIA_SUPPORT_)
static constexpr char kOriginalChecksum[] =
"34ac4e0f3ba510760be09d0e19c1b43e";
#elif BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kOriginalChecksum[] =
"966579fb98206858ce2f0a1f94a74d05";
#else
static constexpr char kOriginalChecksum[] =
"3d5a3de53d5866044c2b6bf339742c97";
#endif
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kOriginalChecksum);
}
constexpr int expected_object_count = 19;
CheckMarkCounts(page, 1, expected_object_count, 8, 4, 9, 1);
// Get all objects marked with "Prime"
std::vector<FPDF_PAGEOBJECT> primes;
for (int i = 0; i < expected_object_count; ++i) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
int mark_count = FPDFPageObj_CountMarks(page_object);
for (int j = 0; j < mark_count; ++j) {
FPDF_PAGEOBJECTMARK mark = FPDFPageObj_GetMark(page_object, j);
char buffer[256];
unsigned long name_len = 999u;
ASSERT_TRUE(
FPDFPageObjMark_GetName(mark, buffer, sizeof(buffer), &name_len));
EXPECT_GT(name_len, 0u);
EXPECT_NE(999u, name_len);
std::wstring name =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
if (name == L"Prime") {
primes.push_back(page_object);
}
}
}
// Remove all objects marked with "Prime".
for (FPDF_PAGEOBJECT page_object : primes) {
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
}
EXPECT_EQ(11, FPDFPage_CountObjects(page));
#if defined(_SKIA_SUPPORT_)
static constexpr char kNonPrimesChecksum[] =
"c671fa07b63e85c4201b9926e880fda8";
static constexpr char kNonPrimesAfterSaveChecksum[] =
"c671fa07b63e85c4201b9926e880fda8";
#elif BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kNonPrimesChecksum[] =
"6e19a4dd674b522cd39cf41956559bd6";
static constexpr char kNonPrimesAfterSaveChecksum[] =
"3cb35c681f8fb5a43a49146ac7caa818";
#else
static constexpr char kNonPrimesChecksum[] =
"bc8623c052f12376c3d8dd09a6cd27df";
static constexpr char kNonPrimesAfterSaveChecksum[] =
"bc8623c052f12376c3d8dd09a6cd27df";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kNonPrimesChecksum);
}
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the prime marks are not there anymore.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(11, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kNonPrimesAfterSaveChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveMarks) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("text_in_page_marked.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
constexpr int kExpectedObjectCount = 19;
CheckMarkCounts(page, 1, kExpectedObjectCount, 8, 4, 9, 1);
// Remove all "Prime" content marks.
for (int i = 0; i < kExpectedObjectCount; ++i) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
int mark_count = FPDFPageObj_CountMarks(page_object);
for (int j = mark_count - 1; j >= 0; --j) {
FPDF_PAGEOBJECTMARK mark = FPDFPageObj_GetMark(page_object, j);
char buffer[256];
unsigned long name_len = 999u;
ASSERT_TRUE(
FPDFPageObjMark_GetName(mark, buffer, sizeof(buffer), &name_len));
EXPECT_GT(name_len, 0u);
EXPECT_NE(999u, name_len);
std::wstring name =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
if (name == L"Prime") {
// Remove mark.
EXPECT_TRUE(FPDFPageObj_RemoveMark(page_object, mark));
// Verify there is now one fewer mark in the page object.
EXPECT_EQ(mark_count - 1, FPDFPageObj_CountMarks(page_object));
}
}
}
// Verify there are 0 "Prime" content marks now.
CheckMarkCounts(page, 1, kExpectedObjectCount, 0, 4, 9, 1);
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the prime marks are not there anymore.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
CheckMarkCounts(saved_page, 1, kExpectedObjectCount, 0, 4, 9, 1);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveMarkParam) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("text_in_page_marked.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
constexpr int kExpectedObjectCount = 19;
CheckMarkCounts(page, 1, kExpectedObjectCount, 8, 4, 9, 1);
// Remove all "Square" content marks parameters.
for (int i = 0; i < kExpectedObjectCount; ++i) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
int mark_count = FPDFPageObj_CountMarks(page_object);
for (int j = 0; j < mark_count; ++j) {
FPDF_PAGEOBJECTMARK mark = FPDFPageObj_GetMark(page_object, j);
char buffer[256];
unsigned long name_len = 999u;
ASSERT_TRUE(
FPDFPageObjMark_GetName(mark, buffer, sizeof(buffer), &name_len));
EXPECT_GT(name_len, 0u);
EXPECT_NE(999u, name_len);
std::wstring name =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
if (name == L"Square") {
// Show the mark has a "Factor" parameter.
int out_value;
EXPECT_TRUE(
FPDFPageObjMark_GetParamIntValue(mark, "Factor", &out_value));
// Remove parameter.
EXPECT_TRUE(FPDFPageObjMark_RemoveParam(page_object, mark, "Factor"));
// Verify the "Factor" parameter is gone.
EXPECT_FALSE(
FPDFPageObjMark_GetParamIntValue(mark, "Factor", &out_value));
}
}
}
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the "Factor" parameters are still gone.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
size_t square_count = 0;
for (int i = 0; i < kExpectedObjectCount; ++i) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(saved_page, i);
int mark_count = FPDFPageObj_CountMarks(page_object);
for (int j = 0; j < mark_count; ++j) {
FPDF_PAGEOBJECTMARK mark = FPDFPageObj_GetMark(page_object, j);
char buffer[256];
unsigned long name_len = 999u;
ASSERT_TRUE(
FPDFPageObjMark_GetName(mark, buffer, sizeof(buffer), &name_len));
EXPECT_GT(name_len, 0u);
EXPECT_NE(999u, name_len);
std::wstring name =
GetPlatformWString(reinterpret_cast<unsigned short*>(buffer));
if (name == L"Square") {
// Verify the "Factor" parameter is still gone.
int out_value;
EXPECT_FALSE(
FPDFPageObjMark_GetParamIntValue(mark, "Factor", &out_value));
++square_count;
}
}
}
// Verify the parameters are gone, but the marks are not.
EXPECT_EQ(4u, square_count);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, MaintainMarkedObjects) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("text_in_page_marked.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Iterate over all objects, counting the number of times each content mark
// name appears.
CheckMarkCounts(page, 1, 19, 8, 4, 9, 1);
// Remove first page object.
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
CheckMarkCounts(page, 2, 18, 8, 3, 9, 1);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
CheckMarkCounts(saved_page, 2, 18, 8, 3, 9, 1);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, MaintainIndirectMarkedObjects) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("text_in_page_marked_indirect.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Iterate over all objects, counting the number of times each content mark
// name appears.
CheckMarkCounts(page, 1, 19, 8, 4, 9, 1);
// Remove first page object.
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
CheckMarkCounts(page, 2, 18, 8, 3, 9, 1);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
CheckMarkCounts(saved_page, 2, 18, 8, 3, 9, 1);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveExistingPageObject) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Get the "Hello, world!" text object and remove it.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
// Verify the "Hello, world!" text is gone.
ASSERT_EQ(1, FPDFPage_CountObjects(page));
// Save the file
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
FPDFPageObj_Destroy(page_object);
// Re-open the file and check the page object count is still 1.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(1, FPDFPage_CountObjects(saved_page));
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveExistingPageObjectSplitStreamsNotLonely) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world_split_streams.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Get the "Hello, world!" text object and remove it. There is another object
// in the same stream that says "Goodbye, world!"
ASSERT_EQ(3, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
// Verify the "Hello, world!" text is gone.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
const char kHelloRemovedChecksum[] = "5508c2f06d104050f74f655693e38c2c";
#else
const char kHelloRemovedChecksum[] = "a8cd82499cf744e0862ca468c9d4ceb8";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloRemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
FPDFPageObj_Destroy(page_object);
// Re-open the file and check the page object count is still 2.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(2, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloRemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveExistingPageObjectSplitStreamsLonely) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world_split_streams.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Get the "Greetings, world!" text object and remove it. This is the only
// object in the stream.
ASSERT_EQ(3, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 2);
ASSERT_TRUE(page_object);
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
// Verify the "Greetings, world!" text is gone.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloWorldChecksum);
}
// Save the file
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
FPDFPageObj_Destroy(page_object);
// Re-open the file and check the page object count is still 2.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(2, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloWorldChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, GetContentStream) {
// Load document with some text split across streams.
ASSERT_TRUE(OpenDocument("split_streams.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-14.
// Content stream 1: page objects 15-17.
// Content stream 2: page object 18.
ASSERT_EQ(19, FPDFPage_CountObjects(page));
for (int i = 0; i < 19; i++) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
if (i < 15)
EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
else if (i < 18)
EXPECT_EQ(1, cpdf_page_object->GetContentStream()) << i;
else
EXPECT_EQ(2, cpdf_page_object->GetContentStream()) << i;
}
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, RemoveAllFromStream) {
// Load document with some text split across streams.
ASSERT_TRUE(OpenDocument("split_streams.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-14.
// Content stream 1: page objects 15-17.
// Content stream 2: page object 18.
ASSERT_EQ(19, FPDFPage_CountObjects(page));
// Loop backwards because objects will being removed, which shifts the indexes
// after the removed position.
for (int i = 18; i >= 0; i--) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
// Empty content stream 1.
if (cpdf_page_object->GetContentStream() == 1) {
EXPECT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
}
}
// Content stream 0: page objects 0-14.
// Content stream 2: page object 15.
ASSERT_EQ(16, FPDFPage_CountObjects(page));
for (int i = 0; i < 16; i++) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
if (i < 15)
EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
else
EXPECT_EQ(2, cpdf_page_object->GetContentStream()) << i;
}
// Generate contents should remove the empty stream and update the page
// objects' contents stream indexes.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Content stream 0: page objects 0-14.
// Content stream 1: page object 15.
ASSERT_EQ(16, FPDFPage_CountObjects(page));
for (int i = 0; i < 16; i++) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
if (i < 15)
EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
else
EXPECT_EQ(1, cpdf_page_object->GetContentStream()) << i;
}
#if defined(_SKIA_SUPPORT_)
const char kStream1RemovedChecksum[] = "b9bb0acfdba4bb5d2e578e7b73341baf";
#elif BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_PATHS_)
const char kStream1RemovedChecksum[] = "3cdc75af44c15bed80998facd6e674c9";
#else
const char kStream1RemovedChecksum[] = "b474826df1acedb05c7b82e1e49e64a6";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kStream1RemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 16, and that
// content stream 1 was removed.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
// Content stream 0: page objects 0-14.
// Content stream 1: page object 15.
EXPECT_EQ(16, FPDFPage_CountObjects(saved_page));
for (int i = 0; i < 16; i++) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(saved_page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
if (i < 15)
EXPECT_EQ(0, cpdf_page_object->GetContentStream()) << i;
else
EXPECT_EQ(1, cpdf_page_object->GetContentStream()) << i;
}
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kStream1RemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveAllFromSingleStream) {
// Load document with a single stream.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-1.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
// Loop backwards because objects will being removed, which shifts the indexes
// after the removed position.
for (int i = 1; i >= 0; i--) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
}
// No more objects in the stream
ASSERT_EQ(0, FPDFPage_CountObjects(page));
// Generate contents should remove the empty stream and update the page
// objects' contents stream indexes.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
ASSERT_EQ(0, FPDFPage_CountObjects(page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 0.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(0, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveFirstFromSingleStream) {
// Load document with a single stream.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-1.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
// Remove first object.
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
// One object left in the stream.
ASSERT_EQ(1, FPDFPage_CountObjects(page));
page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Still one object left in the stream.
ASSERT_EQ(1, FPDFPage_CountObjects(page));
page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kFirstRemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 0.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
ASSERT_EQ(1, FPDFPage_CountObjects(saved_page));
page_object = FPDFPage_GetObject(saved_page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kFirstRemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveLastFromSingleStream) {
// Load document with a single stream.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-1.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
// Remove last object
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 1);
ASSERT_TRUE(page_object);
CPDF_PageObject* cpdf_page_object =
CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
// One object left in the stream.
ASSERT_EQ(1, FPDFPage_CountObjects(page));
page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Still one object left in the stream.
ASSERT_EQ(1, FPDFPage_CountObjects(page));
page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
using pdfium::kHelloWorldRemovedChecksum;
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloWorldRemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 0.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
ASSERT_EQ(1, FPDFPage_CountObjects(saved_page));
page_object = FPDFPage_GetObject(saved_page, 0);
ASSERT_TRUE(page_object);
cpdf_page_object = CPDFPageObjectFromFPDFPageObject(page_object);
ASSERT_EQ(0, cpdf_page_object->GetContentStream());
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kHelloWorldRemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, RemoveAllFromMultipleStreams) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world_split_streams.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Content stream 0: page objects 0-1.
// Content stream 1: page object 2.
ASSERT_EQ(3, FPDFPage_CountObjects(page));
// Loop backwards because objects will being removed, which shifts the indexes
// after the removed position.
for (int i = 2; i >= 0; i--) {
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, i);
ASSERT_TRUE(page_object);
ASSERT_TRUE(FPDFPage_RemoveObject(page, page_object));
FPDFPageObj_Destroy(page_object);
}
// No more objects in the page.
ASSERT_EQ(0, FPDFPage_CountObjects(page));
// Generate contents should remove the empty streams and update the page
// objects' contents stream indexes.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
ASSERT_EQ(0, FPDFPage_CountObjects(page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedChecksum);
}
// Save the file
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 0.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(0, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 200, kAllRemovedChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, InsertPageObjectAndSave) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Add a red rectangle.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(20, 100, 50, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
// Verify the red rectangle was added.
ASSERT_EQ(3, FPDFPage_CountObjects(page));
// Save the file
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 3.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(3, FPDFPage_CountObjects(saved_page));
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, InsertPageObjectEditAndSave) {
// Load document with some text.
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Add a red rectangle.
ASSERT_EQ(2, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(20, 100, 50, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 100, 100, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
// Verify the red rectangle was added.
ASSERT_EQ(3, FPDFPage_CountObjects(page));
// Generate content but change it again
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
// Save the file
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the page object count is still 3.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(3, FPDFPage_CountObjects(saved_page));
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, InsertAndRemoveLargeFile) {
const int kOriginalObjectCount = 600;
// Load document with many objects.
ASSERT_TRUE(OpenDocument("many_rectangles.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
using pdfium::kManyRectanglesChecksum;
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 300, kManyRectanglesChecksum);
}
// Add a black rectangle.
ASSERT_EQ(kOriginalObjectCount, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT black_rect = FPDFPageObj_CreateNewRect(20, 100, 50, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(black_rect, 0, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(black_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, black_rect);
// Verify the black rectangle was added.
ASSERT_EQ(kOriginalObjectCount + 1, FPDFPage_CountObjects(page));
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kPlusRectangleMD5[] = "0d3715fcfb9bd0dd25dcce60800bff47";
#else
const char kPlusRectangleMD5[] = "6b9396ab570754b32b04ca629e902f77";
#endif
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 200, 300, kPlusRectangleMD5);
}
// Save the file.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Re-open the file and check the rectangle added is still there.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(kOriginalObjectCount + 1, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 300, kPlusRectangleMD5);
}
// Remove the added rectangle.
FPDF_PAGEOBJECT added_object =
FPDFPage_GetObject(saved_page, kOriginalObjectCount);
EXPECT_TRUE(FPDFPage_RemoveObject(saved_page, added_object));
FPDFPageObj_Destroy(added_object);
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 300, kManyRectanglesChecksum);
}
EXPECT_EQ(kOriginalObjectCount, FPDFPage_CountObjects(saved_page));
// Save the file again.
EXPECT_TRUE(FPDFPage_GenerateContent(saved_page));
EXPECT_TRUE(FPDF_SaveAsCopy(saved_document(), this, 0));
CloseSavedPage(saved_page);
CloseSavedDocument();
// Re-open the file (again) and check the black rectangle was removed and the
// rest is intact.
ASSERT_TRUE(OpenSavedDocument());
saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
EXPECT_EQ(kOriginalObjectCount, FPDFPage_CountObjects(saved_page));
{
ScopedFPDFBitmap page_bitmap = RenderPage(saved_page);
CompareBitmap(page_bitmap.get(), 200, 300, kManyRectanglesChecksum);
}
CloseSavedPage(saved_page);
CloseSavedDocument();
}
TEST_F(FPDFEditEmbedderTest, AddAndRemovePaths) {
// Start with a blank page.
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
ASSERT_TRUE(page);
// Render the blank page and verify it's a blank bitmap.
using pdfium::kBlankPage612By792Checksum;
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792, kBlankPage612By792Checksum);
}
ASSERT_EQ(0, FPDFPage_CountObjects(page));
// Add a red rectangle.
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(10, 10, 20, 20);
ASSERT_TRUE(red_rect);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792, kRedRectangleChecksum);
}
EXPECT_EQ(1, FPDFPage_CountObjects(page));
// Remove rectangle and verify it does not render anymore and the bitmap is
// back to a blank one.
EXPECT_TRUE(FPDFPage_RemoveObject(page, red_rect));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 792, kBlankPage612By792Checksum);
}
EXPECT_EQ(0, FPDFPage_CountObjects(page));
// Trying to remove an object not in the page should return false.
EXPECT_FALSE(FPDFPage_RemoveObject(page, red_rect));
FPDF_ClosePage(page);
FPDFPageObj_Destroy(red_rect);
}
TEST_F(FPDFEditEmbedderTest, PathsPoints) {
CreateNewDocument();
FPDF_PAGEOBJECT img = FPDFPageObj_NewImageObj(document());
// This should fail gracefully, even if img is not a path.
ASSERT_EQ(-1, FPDFPath_CountSegments(img));
// This should fail gracefully, even if path is NULL.
ASSERT_EQ(-1, FPDFPath_CountSegments(nullptr));
// FPDFPath_GetPathSegment() with a non-path.
ASSERT_EQ(nullptr, FPDFPath_GetPathSegment(img, 0));
// FPDFPath_GetPathSegment() with a NULL path.
ASSERT_EQ(nullptr, FPDFPath_GetPathSegment(nullptr, 0));
float x;
float y;
// FPDFPathSegment_GetPoint() with a NULL segment.
EXPECT_FALSE(FPDFPathSegment_GetPoint(nullptr, &x, &y));
// FPDFPathSegment_GetType() with a NULL segment.
ASSERT_EQ(FPDF_SEGMENT_UNKNOWN, FPDFPathSegment_GetType(nullptr));
// FPDFPathSegment_GetClose() with a NULL segment.
EXPECT_FALSE(FPDFPathSegment_GetClose(nullptr));
FPDFPageObj_Destroy(img);
}
TEST_F(FPDFEditEmbedderTest, PathOnTopOfText) {
// Load document with some text
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Add an opaque rectangle on top of some of the text.
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(20, 100, 50, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
// Add a transparent triangle on top of other part of the text.
FPDF_PAGEOBJECT black_path = FPDFPageObj_CreateNewPath(20, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(black_path, 0, 0, 0, 100));
EXPECT_TRUE(FPDFPath_SetDrawMode(black_path, FPDF_FILLMODE_ALTERNATE, 0));
EXPECT_TRUE(FPDFPath_LineTo(black_path, 30, 80));
EXPECT_TRUE(FPDFPath_LineTo(black_path, 40, 10));
EXPECT_TRUE(FPDFPath_Close(black_path));
FPDFPage_InsertObject(page, black_path);
// Render and check the result.
ScopedFPDFBitmap bitmap = RenderLoadedPage(page);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kChecksum[] = "8a48b019826492331454f2809990aba8";
#elif BUILDFLAG(IS_APPLE)
const char kChecksum[] = "279693baca9f48da2d75a8e289aed58e";
#else
const char kChecksum[] = "fe415d47945c10b9cc8e9ca08887369e";
#endif
CompareBitmap(bitmap.get(), 200, 200, kChecksum);
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, EditOverExistingContent) {
// Load document with existing content
ASSERT_TRUE(OpenDocument("bug_717.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Add a transparent rectangle on top of the existing content
FPDF_PAGEOBJECT red_rect2 = FPDFPageObj_CreateNewRect(90, 700, 25, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect2, 255, 0, 0, 100));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect2, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect2);
// Add an opaque rectangle on top of the existing content
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(115, 700, 25, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kOriginalChecksum[] = "1e82fbdd21490cee9d3479fe6125af67";
#else
const char kOriginalChecksum[] = "ad04e5bd0f471a9a564fb034bd0fb073";
#endif
ScopedFPDFBitmap bitmap = RenderLoadedPage(page);
CompareBitmap(bitmap.get(), 612, 792, kOriginalChecksum);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Now save the result, closing the page and document
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
VerifySavedRendering(saved_page, 612, 792, kOriginalChecksum);
ClearString();
// Add another opaque rectangle on top of the existing content
FPDF_PAGEOBJECT green_rect = FPDFPageObj_CreateNewRect(150, 700, 25, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(green_rect, 0, 255, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(saved_page, green_rect);
// Add another transparent rectangle on top of existing content
FPDF_PAGEOBJECT green_rect2 = FPDFPageObj_CreateNewRect(175, 700, 25, 50);
EXPECT_TRUE(FPDFPageObj_SetFillColor(green_rect2, 0, 255, 0, 100));
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect2, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(saved_page, green_rect2);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kLastChecksum[] = "8705d023e5fec3499d1e30cf2bcc5dc1";
#else
const char kLastChecksum[] = "4b5b00f824620f8c9b8801ebb98e1cdd";
#endif
{
ScopedFPDFBitmap new_bitmap = RenderSavedPage(saved_page);
CompareBitmap(new_bitmap.get(), 612, 792, kLastChecksum);
}
EXPECT_TRUE(FPDFPage_GenerateContent(saved_page));
// Now save the result, closing the page and document
EXPECT_TRUE(FPDF_SaveAsCopy(saved_document(), this, 0));
CloseSavedPage(saved_page);
CloseSavedDocument();
// Render the saved result
VerifySavedDocument(612, 792, kLastChecksum);
}
// TODO(crbug.com/pdfium/1651): Fix this issue and enable the test for Skia.
#if defined(_SKIA_SUPPORT_)
#define MAYBE_AddStrokedPaths DISABLED_AddStrokedPaths
#else
#define MAYBE_AddStrokedPaths AddStrokedPaths
#endif
TEST_F(FPDFEditEmbedderTest, MAYBE_AddStrokedPaths) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
// Add a large stroked rectangle (fill color should not affect it).
FPDF_PAGEOBJECT rect = FPDFPageObj_CreateNewRect(20, 20, 200, 400);
EXPECT_TRUE(FPDFPageObj_SetFillColor(rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPageObj_SetStrokeColor(rect, 0, 255, 0, 255));
EXPECT_TRUE(FPDFPageObj_SetStrokeWidth(rect, 15.0f));
float width = 0;
EXPECT_TRUE(FPDFPageObj_GetStrokeWidth(rect, &width));
EXPECT_EQ(15.0f, width);
EXPECT_TRUE(FPDFPath_SetDrawMode(rect, 0, 1));
FPDFPage_InsertObject(page, rect);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kChecksum_1[] = "1469acf60e7647ebeb8e1fb08c5d6c7a";
#else
static constexpr char kChecksum_1[] = "64bd31f862a89e0a9e505a5af6efd506";
#endif
CompareBitmap(page_bitmap.get(), 612, 792, kChecksum_1);
}
// Add crossed-checkmark
FPDF_PAGEOBJECT check = FPDFPageObj_CreateNewPath(300, 500);
EXPECT_TRUE(FPDFPath_LineTo(check, 400, 400));
EXPECT_TRUE(FPDFPath_LineTo(check, 600, 600));
EXPECT_TRUE(FPDFPath_MoveTo(check, 400, 600));
EXPECT_TRUE(FPDFPath_LineTo(check, 600, 400));
EXPECT_TRUE(FPDFPageObj_SetStrokeColor(check, 128, 128, 128, 180));
EXPECT_TRUE(FPDFPageObj_SetStrokeWidth(check, 8.35f));
EXPECT_TRUE(FPDFPath_SetDrawMode(check, 0, 1));
FPDFPage_InsertObject(page, check);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kChecksum_2[] = "68b3194f74abd9d471695ce1415be43f";
#else
static constexpr char kChecksum_2[] = "4b6f3b9d25c4e194821217d5016c3724";
#endif
CompareBitmap(page_bitmap.get(), 612, 792, kChecksum_2);
}
// Add stroked and filled oval-ish path.
FPDF_PAGEOBJECT path = FPDFPageObj_CreateNewPath(250, 100);
EXPECT_TRUE(FPDFPath_BezierTo(path, 180, 166, 180, 233, 250, 300));
EXPECT_TRUE(FPDFPath_LineTo(path, 255, 305));
EXPECT_TRUE(FPDFPath_BezierTo(path, 325, 233, 325, 166, 255, 105));
EXPECT_TRUE(FPDFPath_Close(path));
EXPECT_TRUE(FPDFPageObj_SetFillColor(path, 200, 128, 128, 100));
EXPECT_TRUE(FPDFPageObj_SetStrokeColor(path, 128, 200, 128, 150));
EXPECT_TRUE(FPDFPageObj_SetStrokeWidth(path, 10.5f));
EXPECT_TRUE(FPDFPath_SetDrawMode(path, FPDF_FILLMODE_ALTERNATE, 1));
FPDFPage_InsertObject(page, path);
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
static constexpr char kChecksum_3[] = "ea784068651df2b9ba132ce9215e6780";
#else
static constexpr char kChecksum_3[] = "ff3e6a22326754944cc6e56609acd73b";
#endif
CompareBitmap(page_bitmap.get(), 612, 792, kChecksum_3);
}
FPDF_ClosePage(page);
}
// Tests adding text from standard font using FPDFPageObj_NewTextObj.
TEST_F(FPDFEditEmbedderTest, AddStandardFontText) {
// Start with a blank page
ScopedFPDFPage page(FPDFPage_New(CreateNewDocument(), 0, 612, 792));
// Add some text to the page
FPDF_PAGEOBJECT text_object1 =
FPDFPageObj_NewTextObj(document(), "Arial", 12.0f);
EXPECT_TRUE(text_object1);
ScopedFPDFWideString text1 = GetFPDFWideString(kBottomText);
EXPECT_TRUE(FPDFText_SetText(text_object1, text1.get()));
static constexpr FS_MATRIX kMatrix1{1, 0, 0, 1, 20, 20};
EXPECT_TRUE(FPDFPageObj_SetMatrix(text_object1, &kMatrix1));
FPDFPage_InsertObject(page.get(), text_object1);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
CompareBitmap(page_bitmap.get(), 612, 792, kBottomTextChecksum);
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(612, 792, kBottomTextChecksum);
}
// Try another font
FPDF_PAGEOBJECT text_object2 =
FPDFPageObj_NewTextObj(document(), "TimesNewRomanBold", 15.0f);
EXPECT_TRUE(text_object2);
ScopedFPDFWideString text2 =
GetFPDFWideString(L"Hi, I'm Bold. Times New Roman Bold.");
EXPECT_TRUE(FPDFText_SetText(text_object2, text2.get()));
FPDFPageObj_Transform(text_object2, 1, 0, 0, 1, 100, 600);
FPDFPage_InsertObject(page.get(), text_object2);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
static constexpr char md5[] = "983baaa1f688eff7a14b1bf91c171a1a";
#else
static constexpr char md5[] = "161523e196eb5341604cd73e12c97922";
#endif
CompareBitmap(page_bitmap.get(), 612, 792, md5);
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(612, 792, md5);
}
// And some randomly transformed text
FPDF_PAGEOBJECT text_object3 =
FPDFPageObj_NewTextObj(document(), "Courier-Bold", 20.0f);
EXPECT_TRUE(text_object3);
ScopedFPDFWideString text3 = GetFPDFWideString(L"Can you read me? <:)>");
EXPECT_TRUE(FPDFText_SetText(text_object3, text3.get()));
FPDFPageObj_Transform(text_object3, 1, 1.5, 2, 0.5, 200, 200);
FPDFPage_InsertObject(page.get(), text_object3);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
#if BUILDFLAG(IS_APPLE) && !defined(_SKIA_SUPPORT_) && \
!defined(_SKIA_SUPPORT_PATHS_)
static constexpr char md5[] = "e0b3493c5c16e41d0d892ffb48e63fba";
#else
static constexpr char md5[] = "1fbf772dca8d82b960631e6683934964";
#endif
CompareBitmap(page_bitmap.get(), 612, 792, md5);
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(612, 792, md5);
}
FS_MATRIX matrix;
EXPECT_TRUE(FPDFPageObj_GetMatrix(text_object3, &matrix));
EXPECT_FLOAT_EQ(1.0f, matrix.a);
EXPECT_FLOAT_EQ(1.5f, matrix.b);
EXPECT_FLOAT_EQ(2.0f, matrix.c);
EXPECT_FLOAT_EQ(0.5f, matrix.d);
EXPECT_FLOAT_EQ(200.0f, matrix.e);
EXPECT_FLOAT_EQ(200.0f, matrix.f);
EXPECT_FALSE(FPDFTextObj_GetFontSize(nullptr, nullptr));
float size = 55;
EXPECT_FALSE(FPDFTextObj_GetFontSize(nullptr, &size));
EXPECT_EQ(55, size);
EXPECT_TRUE(FPDFTextObj_GetFontSize(text_object3, &size));
EXPECT_EQ(20, size);
// TODO(npm): Why are there issues with text rotated by 90 degrees?
// TODO(npm): FPDF_SaveAsCopy not giving the desired result after this.
}
TEST_F(FPDFEditEmbedderTest, AddStandardFontTextOfSizeZero) {
// Start with a blank page
ScopedFPDFPage page(FPDFPage_New(CreateNewDocument(), 0, 612, 792));
// Add some text of size 0 to the page.
FPDF_PAGEOBJECT text_object =
FPDFPageObj_NewTextObj(document(), "Arial", 0.0f);
EXPECT_TRUE(text_object);
ScopedFPDFWideString text = GetFPDFWideString(kBottomText);
EXPECT_TRUE(FPDFText_SetText(text_object, text.get()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 20, 20);
float size = -1; // Make sure 'size' gets changed.
EXPECT_TRUE(FPDFTextObj_GetFontSize(text_object, &size));
EXPECT_EQ(0.0f, size);
FPDFPage_InsertObject(page.get(), text_object);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
{
ScopedFPDFBitmap page_bitmap = RenderPage(page.get());
CompareBitmap(page_bitmap.get(), 612, 792,
pdfium::kBlankPage612By792Checksum);
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
VerifySavedDocument(612, 792, pdfium::kBlankPage612By792Checksum);
}
}
TEST_F(FPDFEditEmbedderTest, GetTextRenderMode) {
ASSERT_TRUE(OpenDocument("text_render_mode.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(2, FPDFPage_CountObjects(page));
EXPECT_EQ(FPDF_TEXTRENDERMODE_UNKNOWN,
FPDFTextObj_GetTextRenderMode(nullptr));
FPDF_PAGEOBJECT fill = FPDFPage_GetObject(page, 0);
EXPECT_EQ(FPDF_TEXTRENDERMODE_FILL, FPDFTextObj_GetTextRenderMode(fill));
FPDF_PAGEOBJECT stroke = FPDFPage_GetObject(page, 1);
EXPECT_EQ(FPDF_TEXTRENDERMODE_STROKE, FPDFTextObj_GetTextRenderMode(stroke));
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, SetTextRenderMode) {
#if defined(_SKIA_SUPPORT_) || defined(_SKIA_SUPPORT_PATHS_)
const char kOriginalChecksum[] = "39a4ac8f1fdc6653edd3b91862ea7b75";
const char kStrokeChecksum[] = "d16eb1bb4748eeb5fb801594da70d519";
#elif BUILDFLAG(IS_APPLE)
const char kOriginalChecksum[] = "c488514ce0fc949069ff560407edacd2";
const char kStrokeChecksum[] = "e06ee84aeebe926e8c980b7822027e8a";
#else
const char kOriginalChecksum[] = "97a4fcf3c9581e19917895631af31d41";
const char kStrokeChecksum[] = "e06ee84aeebe926e8c980b7822027e8a";
#endif
{
ASSERT_TRUE(OpenDocument("text_render_mode.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(2, FPDFPage_CountObjects(page));
// Check the bitmap
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 446, kOriginalChecksum);
}
// Cannot set on a null object.
EXPECT_FALSE(
FPDFTextObj_SetTextRenderMode(nullptr, FPDF_TEXTRENDERMODE_UNKNOWN));
EXPECT_FALSE(
FPDFTextObj_SetTextRenderMode(nullptr, FPDF_TEXTRENDERMODE_INVISIBLE));
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(page_object);
EXPECT_EQ(FPDF_TEXTRENDERMODE_FILL,
FPDFTextObj_GetTextRenderMode(page_object));
// Cannot set UNKNOWN as a render mode.
EXPECT_FALSE(FPDFTextObj_SetTextRenderMode(page_object,
FPDF_TEXTRENDERMODE_UNKNOWN));
EXPECT_TRUE(
FPDFTextObj_SetTextRenderMode(page_object, FPDF_TEXTRENDERMODE_STROKE));
EXPECT_EQ(FPDF_TEXTRENDERMODE_STROKE,
FPDFTextObj_GetTextRenderMode(page_object));
// Check that bitmap displays changed content
{
ScopedFPDFBitmap page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap.get(), 612, 446, kStrokeChecksum);
}
// Save a copy.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
}
{
// Open the saved copy and render it. Check that the changed text render
// mode is kept in the saved copy.
ASSERT_TRUE(OpenSavedDocument());
FPDF_PAGE saved_page = LoadSavedPage(0);
ASSERT_TRUE(saved_page);
FPDF_PAGEOBJECT page_object = FPDFPage_GetObject(saved_page, 0);
EXPECT_TRUE(page_object);
EXPECT_EQ(FPDF_TEXTRENDERMODE_STROKE,
FPDFTextObj_GetTextRenderMode(page_object));
ScopedFPDFBitmap bitmap = RenderSavedPage(saved_page);
CompareBitmap(bitmap.get(), 612, 446, kStrokeChecksum);
CloseSavedPage(saved_page);
CloseSavedDocument();
}
}
TEST_F(FPDFEditEmbedderTest, TextFontProperties) {
// bad object tests
EXPECT_FALSE(FPDFTextObj_GetFont(nullptr));
EXPECT_EQ(0U, FPDFFont_GetFontName(nullptr, nullptr, 5));
EXPECT_EQ(-1, FPDFFont_GetFlags(nullptr));
EXPECT_EQ(-1, FPDFFont_GetWeight(nullptr));
EXPECT_FALSE(FPDFFont_GetItalicAngle(nullptr, nullptr));
EXPECT_FALSE(FPDFFont_GetAscent(nullptr, 12.f, nullptr));
EXPECT_FALSE(FPDFFont_GetDescent(nullptr, 12.f, nullptr));
EXPECT_FALSE(FPDFFont_GetGlyphWidth(nullptr, 's', 12.f, nullptr));
EXPECT_FALSE(FPDFFont_GetGlyphPath(nullptr, 's', 12.f));
// good object tests
ASSERT_TRUE(OpenDocument("text_font.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(1, FPDFPage_CountObjects(page));
FPDF_PAGEOBJECT text = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(text);
float font_size;
ASSERT_TRUE(FPDFTextObj_GetFontSize(text, &font_size));
FPDF_FONT font = FPDFTextObj_GetFont(text);
ASSERT_TRUE(font);
// null return pointer tests
EXPECT_FALSE(FPDFFont_GetItalicAngle(font, nullptr));
EXPECT_FALSE(FPDFFont_GetAscent(font, font_size, nullptr));
EXPECT_FALSE(FPDFFont_GetDescent(font, font_size, nullptr));
EXPECT_FALSE(FPDFFont_GetGlyphWidth(font, 's', font_size, nullptr));
// correct property tests
{
EXPECT_EQ(4, FPDFFont_GetFlags(font));
EXPECT_EQ(400, FPDFFont_GetWeight(font));
int angle;
EXPECT_TRUE(FPDFFont_GetItalicAngle(font, &angle));
EXPECT_EQ(0, angle);
float ascent;
EXPECT_TRUE(FPDFFont_GetAscent(font, font_size, &ascent));
EXPECT_FLOAT_EQ(891 * font_size / 1000.0f, ascent);
float descent;
EXPECT_TRUE(FPDFFont_GetDescent(font, font_size, &descent));
EXPECT_FLOAT_EQ(-216 * font_size / 1000.0f, descent);
float a12;
float a24;
EXPECT_TRUE(FPDFFont_GetGlyphWidth(font, 'a', 12.0f, &a12));
EXPECT_FLOAT_EQ(a12, 5.316f);
EXPECT_TRUE(FPDFFont_GetGlyphWidth(font, 'a', 24.0f, &a24));
EXPECT_FLOAT_EQ(a24, 10.632f);
}
{
// FPDFFont_GetFontName() positive testing.
unsigned long size = FPDFFont_GetFontName(font, nullptr, 0);
const char kExpectedFontName[] = "Liberation Serif";
ASSERT_EQ(sizeof(kExpectedFontName), size);
std::vector<char> font_name(size);
ASSERT_EQ(size, FPDFFont_GetFontName(font, font_name.data(), size));
ASSERT_STREQ(kExpectedFontName, font_name.data());
// FPDFFont_GetFontName() negative testing.
ASSERT_EQ(0U, FPDFFont_GetFontName(nullptr, nullptr, 0));
font_name.resize(2);
font_name[0] = 'x';
font_name[1] = '\0';
size = FPDFFont_GetFontName(font, font_name.data(), font_name.size());
ASSERT_EQ(sizeof(kExpectedFontName), size);
ASSERT_STREQ("x", font_name.data());
}
{
// FPDFFont_GetFontData() positive testing.
constexpr size_t kExpectedSize = 8268;
std::vector<uint8_t> buf;
size_t buf_bytes_required = 123;
ASSERT_TRUE(FPDFFont_GetFontData(font, nullptr, 0, &buf_bytes_required));
ASSERT_EQ(kExpectedSize, buf_bytes_required);
buf.resize(kExpectedSize);
EXPECT_EQ("495800b8e56e2d37f3bc48a1b52db952", GenerateMD5Base16(buf));
buf_bytes_required = 234;
// Test with buffer that is too small. Make sure `buf` is unchanged.
EXPECT_TRUE(FPDFFont_GetFontData(font, buf.data(), buf.size() - 1,
&buf_bytes_required));
EXPECT_EQ("495800b8e56e2d37f3bc48a1b52db952", GenerateMD5Base16(buf));
EXPECT_EQ(kExpectedSize, buf_bytes_required);
// Test with buffer of the correct size.
buf_bytes_required = 234;
EXPECT_TRUE(FPDFFont_GetFontData(font, buf.data(), buf.size(),
&buf_bytes_required));
EXPECT_EQ("1a67be75f719b6c476804d85bb9e4844", GenerateMD5Base16(buf));
EXPECT_EQ(kExpectedSize, buf_bytes_required);
// FPDFFont_GetFontData() negative testing.
EXPECT_FALSE(FPDFFont_GetFontData(nullptr, nullptr, 0, nullptr));
EXPECT_FALSE(FPDFFont_GetFontData(font, nullptr, 0, nullptr));
buf_bytes_required = 345;
EXPECT_FALSE(
FPDFFont_GetFontData(nullptr, nullptr, 0, &buf_bytes_required));
EXPECT_EQ(345u, buf_bytes_required);
EXPECT_FALSE(
FPDFFont_GetFontData(nullptr, buf.data(), buf.size(), nullptr));
EXPECT_FALSE(FPDFFont_GetFontData(font, buf.data(), buf.size(), nullptr));
buf_bytes_required = 345;
EXPECT_FALSE(FPDFFont_GetFontData(nullptr, buf.data(), buf.size(),
&buf_bytes_required));
EXPECT_EQ(345u, buf_bytes_required);
}
{
ASSERT_EQ(1, FPDFFont_GetIsEmbedded(font));
ASSERT_EQ(-1, FPDFFont_GetIsEmbedded(nullptr));
}
UnloadPage(page);
}
TEST_F(FPDFEditEmbedderTest, NoEmbeddedFontData) {
ASSERT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(2, FPDFPage_CountObjects(page));
// Since hello_world.pdf does not embed any font data, FPDFFont_GetFontData()
// will return the substitution font data. Since pdfium_embeddertest is
// hermetic, this first object consistently maps to Tinos-Regular.ttf.
constexpr size_t kTinosRegularSize = 469968;
FPDF_PAGEOBJECT text = FPDFPage_GetObject(page, 0);
ASSERT_TRUE(text);
FPDF_FONT font = FPDFTextObj_GetFont(text);
ASSERT_TRUE(font);
std::vector<uint8_t> buf;
buf.resize(kTinosRegularSize);
size_t buf_bytes_required;
ASSERT_TRUE(
FPDFFont_GetFontData(font, buf.data(), buf.size(), &buf_bytes_required));
EXPECT_EQ(kTinosRegularSize, buf_bytes_required);
EXPECT_EQ("2b019558f2c2de0b7cbc0a6e64b20599", GenerateMD5Base16(buf));
EXPECT_EQ(0, FPDFFont_GetIsEmbedded(font));
// Similarly, the second object consistently maps to Arimo-Regular.ttf.
constexpr size_t kArimoRegularSize = 436180;
text = FPDFPage_GetObject(page, 1);
ASSERT_TRUE(text);
font = FPDFTextObj_GetFont(text);
ASSERT_TRUE(font);
buf.resize(kArimoRegularSize);
ASSERT_TRUE(