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// 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 <memory>
#include <string>
#include <utility>
#include <vector>
#include "core/fpdfapi/font/cpdf_font.h"
#include "core/fpdfapi/page/cpdf_page.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/fxcrt/fx_system.h"
#include "fpdfsdk/fsdk_define.h"
#include "public/cpp/fpdf_deleters.h"
#include "public/fpdf_annot.h"
#include "public/fpdf_edit.h"
#include "public/fpdfview.h"
#include "testing/embedder_test.h"
#include "testing/gmock/include/gmock/gmock-matchers.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/test_support.h"
class FPDFEditEmbeddertest : public EmbedderTest {
protected:
FPDF_DOCUMENT CreateNewDocument() {
document_ = FPDF_CreateNewDocument();
cpdf_doc_ = CPDFDocumentFromFPDFDocument(document_);
return document_;
}
void CheckFontDescriptor(CPDF_Dictionary* font_dict,
int font_type,
bool bold,
bool italic,
uint32_t size,
const uint8_t* data) {
CPDF_Dictionary* font_desc = font_dict->GetDictFor("FontDescriptor");
ASSERT_TRUE(font_desc);
EXPECT_EQ("FontDescriptor", font_desc->GetStringFor("Type"));
EXPECT_EQ(font_dict->GetStringFor("BaseFont"),
font_desc->GetStringFor("FontName"));
// 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");
if (bold)
EXPECT_TRUE(font_flags & FXFONT_BOLD);
else
EXPECT_FALSE(font_flags & FXFONT_BOLD);
if (italic)
EXPECT_TRUE(font_flags & FXFONT_ITALIC);
else
EXPECT_FALSE(font_flags & FXFONT_ITALIC);
EXPECT_TRUE(font_flags & FXFONT_NONSYMBOLIC);
ASSERT_TRUE(font_desc->KeyExist("FontBBox"));
EXPECT_EQ(4U, font_desc->GetArrayFor("FontBBox")->GetCount());
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"));
CFX_ByteString present("FontFile");
CFX_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));
// Check that the font stream is the one that was provided
CPDF_Stream* font_stream = font_desc->GetStreamFor(present);
ASSERT_EQ(size, font_stream->GetRawSize());
uint8_t* stream_data = font_stream->GetRawData();
for (size_t j = 0; j < size; j++)
EXPECT_EQ(data[j], stream_data[j]) << " at byte " << j;
}
void CheckCompositeFontWidths(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->GetCount(), 1U);
int num_cids_checked = 0;
int cur_cid = 0;
for (size_t idx = 0; idx < widths_array->GetCount(); idx++) {
int cid = widths_array->GetNumberAt(idx);
EXPECT_GE(cid, cur_cid);
ASSERT_FALSE(++idx == widths_array->GetCount());
CPDF_Object* next = widths_array->GetObjectAt(idx);
if (next->IsArray()) {
// We are in the c [w1 w2 ...] case
CPDF_Array* arr = next->AsArray();
int cnt = static_cast<int>(arr->GetCount());
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->GetCount());
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, 900);
}
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, EmptyCreation) {
EXPECT_TRUE(CreateEmptyDocument());
FPDF_PAGE page = FPDFPage_New(document(), 0, 640.0, 480.0);
EXPECT_NE(nullptr, 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/
FPDF_BITMAP orig_bitmap;
{
EXPECT_TRUE(OpenDocument("black.pdf"));
FPDF_PAGE orig_page = LoadPage(0);
EXPECT_NE(nullptr, orig_page);
orig_bitmap = RenderPage(orig_page);
CompareBitmap(orig_bitmap, 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));
EXPECT_TRUE(FPDFImageObj_SetMatrix(temp_img, 612, 0, 0, 792, 0, 0));
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);
}
FPDFBitmap_Destroy(orig_bitmap);
// Get the generated content. Make sure it is at least as big as the original
// PDF.
EXPECT_GT(GetString().size(), 923U);
TestAndCloseSaved(612, 792, kAllBlackMd5sum);
}
TEST_F(FPDFEditEmbeddertest, AddPaths) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
// We will first add a red rectangle
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(10, 10, 20, 20);
ASSERT_NE(nullptr, red_rect);
// Expect false when trying to set colors out of range
EXPECT_FALSE(FPDFPath_SetStrokeColor(red_rect, 100, 100, 100, 300));
EXPECT_FALSE(FPDFPath_SetFillColor(red_rect, 200, 256, 200, 0));
// Fill rectangle with red and insert to the page
EXPECT_TRUE(FPDFPath_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
FPDF_BITMAP page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "66d02eaa6181e2c069ce2ea99beda497");
FPDFBitmap_Destroy(page_bitmap);
// Now add to that a green rectangle with some medium alpha
FPDF_PAGEOBJECT green_rect = FPDFPageObj_CreateNewRect(100, 100, 40, 40);
EXPECT_TRUE(FPDFPath_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(FPDFPath_GetFillColor(green_rect, &R, &G, &B, &A));
EXPECT_EQ(0U, R);
EXPECT_EQ(255U, G);
EXPECT_EQ(0U, B);
EXPECT_EQ(128U, A);
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect, FPDF_FILLMODE_WINDING, 0));
FPDFPage_InsertObject(page, green_rect);
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "7b0b87604594e773add528fae567a558");
FPDFBitmap_Destroy(page_bitmap);
// Add a black triangle.
FPDF_PAGEOBJECT black_path = FPDFPageObj_CreateNewPath(400, 100);
EXPECT_TRUE(FPDFPath_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));
FPDFPage_InsertObject(page, black_path);
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "eadc8020a14dfcf091da2688733d8806");
FPDFBitmap_Destroy(page_bitmap);
// Now add a more complex blue path.
FPDF_PAGEOBJECT blue_path = FPDFPageObj_CreateNewPath(200, 200);
EXPECT_TRUE(FPDFPath_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);
page_bitmap = RenderPage(page);
const char last_md5[] = "9823e1a21bd9b72b6a442ba4f12af946";
CompareBitmap(page_bitmap, 612, 792, last_md5);
FPDFBitmap_Destroy(page_bitmap);
// 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
TestAndCloseSaved(612, 792, last_md5);
}
TEST_F(FPDFEditEmbeddertest, PathOnTopOfText) {
// Load document with some text
EXPECT_TRUE(OpenDocument("hello_world.pdf"));
FPDF_PAGE page = LoadPage(0);
EXPECT_NE(nullptr, page);
// Add an opaque rectangle on top of some of the text.
FPDF_PAGEOBJECT red_rect = FPDFPageObj_CreateNewRect(20, 100, 50, 50);
EXPECT_TRUE(FPDFPath_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(FPDFPath_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. Text is slightly different on Mac.
FPDF_BITMAP bitmap = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5[] = "f9e6fa74230f234286bfcada9f7606d8";
#else
const char md5[] = "bc6e6eb50dda4695ba0fb4d04ed82ada";
#endif
CompareBitmap(bitmap, 200, 200, md5);
FPDFBitmap_Destroy(bitmap);
UnloadPage(page);
}
TEST_F(FPDFEditEmbeddertest, EditOverExistingContent) {
// Load document with existing content
EXPECT_TRUE(OpenDocument("bug_717.pdf"));
FPDF_PAGE page = LoadPage(0);
EXPECT_NE(nullptr, page);
// Add a transparent rectangle on top of the existing content
FPDF_PAGEOBJECT red_rect2 = FPDFPageObj_CreateNewRect(90, 700, 25, 50);
EXPECT_TRUE(FPDFPath_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(FPDFPath_SetFillColor(red_rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(red_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(page, red_rect);
FPDF_BITMAP bitmap = RenderPage(page);
CompareBitmap(bitmap, 612, 792, "ad04e5bd0f471a9a564fb034bd0fb073");
FPDFBitmap_Destroy(bitmap);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Now save the result, closing the page and document
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
// Render the saved result without closing the page and document
TestSaved(612, 792, "ad04e5bd0f471a9a564fb034bd0fb073");
ClearString();
// Add another opaque rectangle on top of the existing content
FPDF_PAGEOBJECT green_rect = FPDFPageObj_CreateNewRect(150, 700, 25, 50);
EXPECT_TRUE(FPDFPath_SetFillColor(green_rect, 0, 255, 0, 255));
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(m_SavedPage, green_rect);
// Add another transparent rectangle on top of existing content
FPDF_PAGEOBJECT green_rect2 = FPDFPageObj_CreateNewRect(175, 700, 25, 50);
EXPECT_TRUE(FPDFPath_SetFillColor(green_rect2, 0, 255, 0, 100));
EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect2, FPDF_FILLMODE_ALTERNATE, 0));
FPDFPage_InsertObject(m_SavedPage, green_rect2);
FPDF_BITMAP new_bitmap = RenderPageWithFlags(m_SavedPage, m_SavedForm, 0);
const char last_md5[] = "4b5b00f824620f8c9b8801ebb98e1cdd";
CompareBitmap(new_bitmap, 612, 792, last_md5);
FPDFBitmap_Destroy(new_bitmap);
EXPECT_TRUE(FPDFPage_GenerateContent(m_SavedPage));
// Now save the result, closing the page and document
EXPECT_TRUE(FPDF_SaveAsCopy(m_SavedDocument, this, 0));
CloseSaved();
// Render the saved result
TestAndCloseSaved(612, 792, last_md5);
}
TEST_F(FPDFEditEmbeddertest, 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(FPDFPath_SetFillColor(rect, 255, 0, 0, 255));
EXPECT_TRUE(FPDFPath_SetStrokeColor(rect, 0, 255, 0, 255));
EXPECT_TRUE(FPDFPath_SetStrokeWidth(rect, 15.0f));
EXPECT_TRUE(FPDFPath_SetDrawMode(rect, 0, 1));
FPDFPage_InsertObject(page, rect);
FPDF_BITMAP page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "64bd31f862a89e0a9e505a5af6efd506");
FPDFBitmap_Destroy(page_bitmap);
// 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(FPDFPath_SetStrokeColor(check, 128, 128, 128, 180));
EXPECT_TRUE(FPDFPath_SetStrokeWidth(check, 8.35f));
EXPECT_TRUE(FPDFPath_SetDrawMode(check, 0, 1));
FPDFPage_InsertObject(page, check);
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "4b6f3b9d25c4e194821217d5016c3724");
FPDFBitmap_Destroy(page_bitmap);
// 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(FPDFPath_SetFillColor(path, 200, 128, 128, 100));
EXPECT_TRUE(FPDFPath_SetStrokeColor(path, 128, 200, 128, 150));
EXPECT_TRUE(FPDFPath_SetStrokeWidth(path, 10.5f));
EXPECT_TRUE(FPDFPath_SetDrawMode(path, FPDF_FILLMODE_ALTERNATE, 1));
FPDFPage_InsertObject(page, path);
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "ff3e6a22326754944cc6e56609acd73b");
FPDFBitmap_Destroy(page_bitmap);
FPDF_ClosePage(page);
}
TEST_F(FPDFEditEmbeddertest, AddStandardFontText) {
// Start with a blank page
FPDF_PAGE 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);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text1 =
GetFPDFWideString(L"I'm at the bottom of the page");
EXPECT_TRUE(FPDFText_SetText(text_object1, text1.get()));
FPDFPageObj_Transform(text_object1, 1, 0, 0, 1, 20, 20);
FPDFPage_InsertObject(page, text_object1);
FPDF_BITMAP page_bitmap = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5[] = "a4dddc1a3930fa694bbff9789dab4161";
#else
const char md5[] = "7a35771853a1cbba38f6775807878625";
#endif
CompareBitmap(page_bitmap, 612, 792, md5);
FPDFBitmap_Destroy(page_bitmap);
// Try another font
FPDF_PAGEOBJECT text_object2 =
FPDFPageObj_NewTextObj(document(), "TimesNewRomanBold", 15.0f);
EXPECT_TRUE(text_object2);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> 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, text_object2);
page_bitmap = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5_2[] = "a5c4ace4c6f27644094813fe1441a21c";
#elif _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
const char md5_2[] = "b231b329a4b566fb9b42bfc15fe59bb7";
#else
const char md5_2[] = "f85fae151851436072b7b3c6703e506a";
#endif
CompareBitmap(page_bitmap, 612, 792, md5_2);
FPDFBitmap_Destroy(page_bitmap);
// And some randomly transformed text
FPDF_PAGEOBJECT text_object3 =
FPDFPageObj_NewTextObj(document(), "Courier-Bold", 20.0f);
EXPECT_TRUE(text_object3);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> 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, text_object3);
page_bitmap = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5_3[] = "40b3ef04f915ff4c4208948001763544";
#elif _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
const char md5_3[] = "ba874b3b137f984510c4e287ed4ba7ae";
#else
const char md5_3[] = "c5aed6a8ef05558c8c47d58c87cbcb46";
#endif
CompareBitmap(page_bitmap, 612, 792, md5_3);
FPDFBitmap_Destroy(page_bitmap);
// TODO(npm): Why are there issues with text rotated by 90 degrees?
// TODO(npm): FPDF_SaveAsCopy not giving the desired result after this.
FPDF_ClosePage(page);
}
TEST_F(FPDFEditEmbeddertest, GraphicsData) {
// New page
std::unique_ptr<void, FPDFPageDeleter> page(
FPDFPage_New(CreateNewDocument(), 0, 612, 792));
// Create a rect with nontrivial graphics
FPDF_PAGEOBJECT rect1 = FPDFPageObj_CreateNewRect(10, 10, 100, 100);
FPDFPageObj_SetBlendMode(rect1, "Color");
FPDFPage_InsertObject(page.get(), rect1);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
// Check that the ExtGState was created
CPDF_Page* the_page = CPDFPageFromFPDFPage(page.get());
CPDF_Dictionary* graphics_dict =
the_page->m_pResources->GetDictFor("ExtGState");
ASSERT_TRUE(graphics_dict);
EXPECT_EQ(2, static_cast<int>(graphics_dict->GetCount()));
// Add a text object causing no change to the graphics dictionary
FPDF_PAGEOBJECT text1 = FPDFPageObj_NewTextObj(document(), "Arial", 12.0f);
// Only alpha, the last component, matters for the graphics dictionary. And
// the default value is 255.
EXPECT_TRUE(FPDFText_SetFillColor(text1, 100, 100, 100, 255));
FPDFPage_InsertObject(page.get(), text1);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
EXPECT_EQ(2, static_cast<int>(graphics_dict->GetCount()));
// Add a text object increasing the size of the graphics dictionary
FPDF_PAGEOBJECT text2 =
FPDFPageObj_NewTextObj(document(), "Times-Roman", 12.0f);
FPDFPage_InsertObject(page.get(), text2);
FPDFPageObj_SetBlendMode(text2, "Darken");
EXPECT_TRUE(FPDFText_SetFillColor(text2, 0, 0, 255, 150));
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
EXPECT_EQ(3, static_cast<int>(graphics_dict->GetCount()));
// Add a path that should reuse graphics
FPDF_PAGEOBJECT path = FPDFPageObj_CreateNewPath(400, 100);
FPDFPageObj_SetBlendMode(path, "Darken");
EXPECT_TRUE(FPDFPath_SetFillColor(path, 200, 200, 100, 150));
FPDFPage_InsertObject(page.get(), path);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
EXPECT_EQ(3, static_cast<int>(graphics_dict->GetCount()));
// Add a rect increasing the size of the graphics dictionary
FPDF_PAGEOBJECT rect2 = FPDFPageObj_CreateNewRect(10, 10, 100, 100);
FPDFPageObj_SetBlendMode(rect2, "Darken");
EXPECT_TRUE(FPDFPath_SetFillColor(rect2, 0, 0, 255, 150));
EXPECT_TRUE(FPDFPath_SetStrokeColor(rect2, 0, 0, 0, 200));
FPDFPage_InsertObject(page.get(), rect2);
EXPECT_TRUE(FPDFPage_GenerateContent(page.get()));
EXPECT_EQ(4, static_cast<int>(graphics_dict->GetCount()));
}
TEST_F(FPDFEditEmbeddertest, DoubleGenerating) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
// Add a red rectangle with some non-default alpha
FPDF_PAGEOBJECT rect = FPDFPageObj_CreateNewRect(10, 10, 100, 100);
EXPECT_TRUE(FPDFPath_SetFillColor(rect, 255, 0, 0, 128));
EXPECT_TRUE(FPDFPath_SetDrawMode(rect, FPDF_FILLMODE_WINDING, 0));
FPDFPage_InsertObject(page, rect);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
// Check the ExtGState
CPDF_Page* the_page = CPDFPageFromFPDFPage(page);
CPDF_Dictionary* graphics_dict =
the_page->m_pResources->GetDictFor("ExtGState");
ASSERT_TRUE(graphics_dict);
EXPECT_EQ(2, static_cast<int>(graphics_dict->GetCount()));
// Check the bitmap
FPDF_BITMAP page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "5384da3406d62360ffb5cac4476fff1c");
FPDFBitmap_Destroy(page_bitmap);
// Never mind, my new favorite color is blue, increase alpha
EXPECT_TRUE(FPDFPath_SetFillColor(rect, 0, 0, 255, 180));
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_EQ(3, static_cast<int>(graphics_dict->GetCount()));
// Check that bitmap displays changed content
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "2e51656f5073b0bee611d9cd086aa09c");
FPDFBitmap_Destroy(page_bitmap);
// And now generate, without changes
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_EQ(3, static_cast<int>(graphics_dict->GetCount()));
page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, "2e51656f5073b0bee611d9cd086aa09c");
FPDFBitmap_Destroy(page_bitmap);
// Add some text to the page
FPDF_PAGEOBJECT text_object =
FPDFPageObj_NewTextObj(document(), "Arial", 12.0f);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text =
GetFPDFWideString(L"Something something #text# something");
EXPECT_TRUE(FPDFText_SetText(text_object, text.get()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 300, 300);
FPDFPage_InsertObject(page, text_object);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
CPDF_Dictionary* font_dict = the_page->m_pResources->GetDictFor("Font");
ASSERT_TRUE(font_dict);
EXPECT_EQ(1, static_cast<int>(font_dict->GetCount()));
// Generate yet again, check dicts are reasonably sized
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_EQ(3, static_cast<int>(graphics_dict->GetCount()));
EXPECT_EQ(1, static_cast<int>(font_dict->GetCount()));
FPDF_ClosePage(page);
}
TEST_F(FPDFEditEmbeddertest, LoadSimpleType1Font) {
CreateNewDocument();
// TODO(npm): use other fonts after disallowing loading any font as any type
const CPDF_Font* stock_font =
CPDF_Font::GetStockFont(cpdf_doc(), "Times-Bold");
const uint8_t* data = stock_font->GetFont()->GetFontData();
const uint32_t size = stock_font->GetFont()->GetSize();
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TYPE1, false));
ASSERT_TRUE(font.get());
CPDF_Font* typed_font = static_cast<CPDF_Font*>(font.get());
EXPECT_TRUE(typed_font->IsType1Font());
CPDF_Dictionary* font_dict = typed_font->GetFontDict();
EXPECT_EQ("Font", font_dict->GetStringFor("Type"));
EXPECT_EQ("Type1", font_dict->GetStringFor("Subtype"));
EXPECT_EQ("Times New Roman Bold", font_dict->GetStringFor("BaseFont"));
ASSERT_TRUE(font_dict->KeyExist("FirstChar"));
ASSERT_TRUE(font_dict->KeyExist("LastChar"));
EXPECT_EQ(32, font_dict->GetIntegerFor("FirstChar"));
EXPECT_EQ(255, font_dict->GetIntegerFor("LastChar"));
CPDF_Array* widths_array = font_dict->GetArrayFor("Widths");
ASSERT_TRUE(widths_array);
ASSERT_EQ(224U, widths_array->GetCount());
EXPECT_EQ(250, widths_array->GetNumberAt(0));
EXPECT_EQ(569, widths_array->GetNumberAt(11));
EXPECT_EQ(500, widths_array->GetNumberAt(223));
CheckFontDescriptor(font_dict, FPDF_FONT_TYPE1, true, false, size, data);
}
TEST_F(FPDFEditEmbeddertest, LoadSimpleTrueTypeFont) {
CreateNewDocument();
const CPDF_Font* stock_font = CPDF_Font::GetStockFont(cpdf_doc(), "Courier");
const uint8_t* data = stock_font->GetFont()->GetFontData();
const uint32_t size = stock_font->GetFont()->GetSize();
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, false));
ASSERT_TRUE(font.get());
CPDF_Font* typed_font = static_cast<CPDF_Font*>(font.get());
EXPECT_TRUE(typed_font->IsTrueTypeFont());
CPDF_Dictionary* font_dict = typed_font->GetFontDict();
EXPECT_EQ("Font", font_dict->GetStringFor("Type"));
EXPECT_EQ("TrueType", font_dict->GetStringFor("Subtype"));
EXPECT_EQ("Courier New", font_dict->GetStringFor("BaseFont"));
ASSERT_TRUE(font_dict->KeyExist("FirstChar"));
ASSERT_TRUE(font_dict->KeyExist("LastChar"));
EXPECT_EQ(32, font_dict->GetIntegerFor("FirstChar"));
EXPECT_EQ(255, font_dict->GetIntegerFor("LastChar"));
CPDF_Array* widths_array = font_dict->GetArrayFor("Widths");
ASSERT_TRUE(widths_array);
ASSERT_EQ(224U, widths_array->GetCount());
EXPECT_EQ(600, widths_array->GetNumberAt(33));
EXPECT_EQ(600, widths_array->GetNumberAt(74));
EXPECT_EQ(600, widths_array->GetNumberAt(223));
CheckFontDescriptor(font_dict, FPDF_FONT_TRUETYPE, false, false, size, data);
}
TEST_F(FPDFEditEmbeddertest, LoadCIDType0Font) {
CreateNewDocument();
const CPDF_Font* stock_font =
CPDF_Font::GetStockFont(cpdf_doc(), "Times-Roman");
const uint8_t* data = stock_font->GetFont()->GetFontData();
const uint32_t size = stock_font->GetFont()->GetSize();
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TYPE1, 1));
ASSERT_TRUE(font.get());
CPDF_Font* typed_font = static_cast<CPDF_Font*>(font.get());
EXPECT_TRUE(typed_font->IsCIDFont());
// Check font dictionary entries
CPDF_Dictionary* font_dict = typed_font->GetFontDict();
EXPECT_EQ("Font", font_dict->GetStringFor("Type"));
EXPECT_EQ("Type0", font_dict->GetStringFor("Subtype"));
EXPECT_EQ("Times New Roman-Identity-H", font_dict->GetStringFor("BaseFont"));
EXPECT_EQ("Identity-H", font_dict->GetStringFor("Encoding"));
CPDF_Array* descendant_array = font_dict->GetArrayFor("DescendantFonts");
ASSERT_TRUE(descendant_array);
EXPECT_EQ(1U, descendant_array->GetCount());
// Check the CIDFontDict
CPDF_Dictionary* cidfont_dict = descendant_array->GetDictAt(0);
EXPECT_EQ("Font", cidfont_dict->GetStringFor("Type"));
EXPECT_EQ("CIDFontType0", cidfont_dict->GetStringFor("Subtype"));
EXPECT_EQ("Times New Roman", cidfont_dict->GetStringFor("BaseFont"));
CPDF_Dictionary* cidinfo_dict = cidfont_dict->GetDictFor("CIDSystemInfo");
ASSERT_TRUE(cidinfo_dict);
EXPECT_EQ("Adobe", cidinfo_dict->GetStringFor("Registry"));
EXPECT_EQ("Identity", cidinfo_dict->GetStringFor("Ordering"));
EXPECT_EQ(0, cidinfo_dict->GetNumberFor("Supplement"));
CheckFontDescriptor(cidfont_dict, FPDF_FONT_TYPE1, false, false, size, data);
// Check widths
CPDF_Array* widths_array = cidfont_dict->GetArrayFor("W");
ASSERT_TRUE(widths_array);
EXPECT_GT(widths_array->GetCount(), 1U);
CheckCompositeFontWidths(widths_array, typed_font);
}
TEST_F(FPDFEditEmbeddertest, LoadCIDType2Font) {
CreateNewDocument();
const CPDF_Font* stock_font =
CPDF_Font::GetStockFont(cpdf_doc(), "Helvetica-Oblique");
const uint8_t* data = stock_font->GetFont()->GetFontData();
const uint32_t size = stock_font->GetFont()->GetSize();
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, 1));
ASSERT_TRUE(font.get());
CPDF_Font* typed_font = static_cast<CPDF_Font*>(font.get());
EXPECT_TRUE(typed_font->IsCIDFont());
// Check font dictionary entries
CPDF_Dictionary* font_dict = typed_font->GetFontDict();
EXPECT_EQ("Font", font_dict->GetStringFor("Type"));
EXPECT_EQ("Type0", font_dict->GetStringFor("Subtype"));
EXPECT_EQ("Arial Italic", font_dict->GetStringFor("BaseFont"));
EXPECT_EQ("Identity-H", font_dict->GetStringFor("Encoding"));
CPDF_Array* descendant_array = font_dict->GetArrayFor("DescendantFonts");
ASSERT_TRUE(descendant_array);
EXPECT_EQ(1U, descendant_array->GetCount());
// Check the CIDFontDict
CPDF_Dictionary* cidfont_dict = descendant_array->GetDictAt(0);
EXPECT_EQ("Font", cidfont_dict->GetStringFor("Type"));
EXPECT_EQ("CIDFontType2", cidfont_dict->GetStringFor("Subtype"));
EXPECT_EQ("Arial Italic", cidfont_dict->GetStringFor("BaseFont"));
CPDF_Dictionary* cidinfo_dict = cidfont_dict->GetDictFor("CIDSystemInfo");
ASSERT_TRUE(cidinfo_dict);
EXPECT_EQ("Adobe", cidinfo_dict->GetStringFor("Registry"));
EXPECT_EQ("Identity", cidinfo_dict->GetStringFor("Ordering"));
EXPECT_EQ(0, cidinfo_dict->GetNumberFor("Supplement"));
CheckFontDescriptor(cidfont_dict, FPDF_FONT_TRUETYPE, false, true, size,
data);
// Check widths
CPDF_Array* widths_array = cidfont_dict->GetArrayFor("W");
ASSERT_TRUE(widths_array);
CheckCompositeFontWidths(widths_array, typed_font);
}
TEST_F(FPDFEditEmbeddertest, NormalizeNegativeRotation) {
// Load document with a -90 degree rotation
EXPECT_TRUE(OpenDocument("bug_713197.pdf"));
FPDF_PAGE page = LoadPage(0);
EXPECT_NE(nullptr, page);
EXPECT_EQ(3, FPDFPage_GetRotation(page));
UnloadPage(page);
}
TEST_F(FPDFEditEmbeddertest, AddTrueTypeFontText) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
{
const CPDF_Font* stock_font = CPDF_Font::GetStockFont(cpdf_doc(), "Arial");
const uint8_t* data = stock_font->GetFont()->GetFontData();
const uint32_t size = stock_font->GetFont()->GetSize();
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, 0));
ASSERT_TRUE(font.get());
// Add some text to the page
FPDF_PAGEOBJECT text_object =
FPDFPageObj_CreateTextObj(document(), font.get(), 12.0f);
EXPECT_TRUE(text_object);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text =
GetFPDFWideString(L"I am testing my loaded font, WEE.");
EXPECT_TRUE(FPDFText_SetText(text_object, text.get()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 400, 400);
FPDFPage_InsertObject(page, text_object);
FPDF_BITMAP page_bitmap = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5[] = "17d2b6cd574cf66170b09c8927529a94";
#else
const char md5[] = "1722c6a9deed953d730de9cd13dcbd55";
#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
CompareBitmap(page_bitmap, 612, 792, md5);
FPDFBitmap_Destroy(page_bitmap);
// Add some more text, same font
FPDF_PAGEOBJECT text_object2 =
FPDFPageObj_CreateTextObj(document(), font.get(), 15.0f);
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text2 =
GetFPDFWideString(L"Bigger font size");
EXPECT_TRUE(FPDFText_SetText(text_object2, text2.get()));
FPDFPageObj_Transform(text_object2, 1, 0, 0, 1, 200, 200);
FPDFPage_InsertObject(page, text_object2);
}
FPDF_BITMAP page_bitmap2 = RenderPage(page);
#if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
const char md5_2[] = "8eded4193ff1f0f77b8b600a825e97ea";
#else
const char md5_2[] = "9d7885072058f6c3e68ecaf32e917f30";
#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
CompareBitmap(page_bitmap2, 612, 792, md5_2);
FPDFBitmap_Destroy(page_bitmap2);
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
FPDF_ClosePage(page);
TestAndCloseSaved(612, 792, md5_2);
}
TEST_F(FPDFEditEmbeddertest, TransformAnnot) {
// Open a file with one annotation and load its first page.
ASSERT_TRUE(OpenDocument("annotation_highlight_long_content.pdf"));
FPDF_PAGE page = FPDF_LoadPage(document(), 0);
ASSERT_TRUE(page);
// Add an underline annotation to the page without specifying its rectangle.
FPDF_ANNOTATION annot = FPDFPage_CreateAnnot(page, FPDF_ANNOT_UNDERLINE);
ASSERT_TRUE(annot);
// FPDFPage_TransformAnnots() should run without errors when modifying
// annotation rectangles.
FPDFPage_TransformAnnots(page, 1, 2, 3, 4, 5, 6);
FPDFPage_CloseAnnot(annot);
UnloadPage(page);
}
// TODO(npm): Add tests using Japanese fonts in other OS.
#if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
TEST_F(FPDFEditEmbeddertest, AddCIDFontText) {
// Start with a blank page
FPDF_PAGE page = FPDFPage_New(CreateNewDocument(), 0, 612, 792);
CFX_Font CIDfont;
{
// First, get the data from the font
CIDfont.LoadSubst("IPAGothic", 1, 0, 400, 0, 932, 0);
EXPECT_EQ("IPAGothic", CIDfont.GetFaceName());
const uint8_t* data = CIDfont.GetFontData();
const uint32_t size = CIDfont.GetSize();
// Load the data into a FPDF_Font.
std::unique_ptr<void, FPDFFontDeleter> font(
FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, 1));
ASSERT_TRUE(font.get());
// Add some text to the page
FPDF_PAGEOBJECT text_object =
FPDFPageObj_CreateTextObj(document(), font.get(), 12.0f);
ASSERT_TRUE(text_object);
std::wstring wstr = L"ABCDEFGhijklmnop.";
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text =
GetFPDFWideString(wstr);
EXPECT_TRUE(FPDFText_SetText(text_object, text.get()));
FPDFPageObj_Transform(text_object, 1, 0, 0, 1, 200, 200);
FPDFPage_InsertObject(page, text_object);
// And add some Japanese characters
FPDF_PAGEOBJECT text_object2 =
FPDFPageObj_CreateTextObj(document(), font.get(), 18.0f);
ASSERT_TRUE(text_object2);
std::wstring wstr2 =
L"\u3053\u3093\u306B\u3061\u306f\u4e16\u754C\u3002\u3053\u3053\u306B1"
L"\u756A";
std::unique_ptr<unsigned short, pdfium::FreeDeleter> text2 =
GetFPDFWideString(wstr2);
EXPECT_TRUE(FPDFText_SetText(text_object2, text2.get()));
FPDFPageObj_Transform(text_object2, 1, 0, 0, 1, 100, 500);
FPDFPage_InsertObject(page, text_object2);
}
// Check that the text renders properly.
FPDF_BITMAP page_bitmap = RenderPage(page);
const char md5[] = "2bc6c1aaa2252e73246a75775ccf38c2";
CompareBitmap(page_bitmap, 612, 792, md5);
FPDFBitmap_Destroy(page_bitmap);
// Save the document, close the page.
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
FPDF_ClosePage(page);
TestAndCloseSaved(612, 792, md5);
}
#endif // _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_
TEST_F(FPDFEditEmbeddertest, SaveAndRender) {
const char md5[] = "3c20472b0552c0c22b88ab1ed8c6202b";
{
EXPECT_TRUE(OpenDocument("bug_779.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_NE(nullptr, page);
// Now add a more complex blue path.
FPDF_PAGEOBJECT green_path = FPDFPageObj_CreateNewPath(20, 20);
EXPECT_TRUE(FPDFPath_SetFillColor(green_path, 0, 255, 0, 200));
// TODO(npm): stroking will cause the MD5s to differ.
EXPECT_TRUE(FPDFPath_SetDrawMode(green_path, FPDF_FILLMODE_WINDING, 0));
EXPECT_TRUE(FPDFPath_LineTo(green_path, 20, 63));
EXPECT_TRUE(FPDFPath_BezierTo(green_path, 55, 55, 78, 78, 90, 90));
EXPECT_TRUE(FPDFPath_LineTo(green_path, 133, 133));
EXPECT_TRUE(FPDFPath_LineTo(green_path, 133, 33));
EXPECT_TRUE(FPDFPath_BezierTo(green_path, 38, 33, 39, 36, 40, 40));
EXPECT_TRUE(FPDFPath_Close(green_path));
FPDFPage_InsertObject(page, green_path);
FPDF_BITMAP page_bitmap = RenderPage(page);
CompareBitmap(page_bitmap, 612, 792, md5);
FPDFBitmap_Destroy(page_bitmap);
// Now save the result, closing the page and document
EXPECT_TRUE(FPDFPage_GenerateContent(page));
EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0));
UnloadPage(page);
}
TestAndCloseSaved(612, 792, md5);
}
TEST_F(FPDFEditEmbeddertest, ExtractImageBitmap) {
ASSERT_TRUE(OpenDocument("embedded_images.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(39, FPDFPage_CountObject(page));
FPDF_PAGEOBJECT obj = FPDFPage_GetObject(page, 32);
EXPECT_NE(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
EXPECT_FALSE(FPDFImageObj_GetBitmap(obj));
obj = FPDFPage_GetObject(page, 33);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
FPDF_BITMAP bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_BGR, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 109, 88, "d65e98d968d196abf13f78aec655ffae");
FPDFBitmap_Destroy(bitmap);
obj = FPDFPage_GetObject(page, 34);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_BGR, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 103, 75, "1287711c84dbef767c435d11697661d6");
FPDFBitmap_Destroy(bitmap);
obj = FPDFPage_GetObject(page, 35);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_Gray, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 92, 68, "9c6d76cb1e37ef8514f9455d759391f3");
FPDFBitmap_Destroy(bitmap);
obj = FPDFPage_GetObject(page, 36);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_BGR, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 79, 60, "15cb6a49a2e354ed0e9f45dd34e3da1a");
FPDFBitmap_Destroy(bitmap);
obj = FPDFPage_GetObject(page, 37);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_BGR, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 126, 106, "be5a64ba7890d2657522af6524118534");
FPDFBitmap_Destroy(bitmap);
obj = FPDFPage_GetObject(page, 38);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
bitmap = FPDFImageObj_GetBitmap(obj);
EXPECT_EQ(FPDFBitmap_BGR, FPDFBitmap_GetFormat(bitmap));
CompareBitmap(bitmap, 194, 119, "f9e24207ee1bc0db6c543d33a5f12ec5");
FPDFBitmap_Destroy(bitmap);
UnloadPage(page);
}
TEST_F(FPDFEditEmbeddertest, GetImageData) {
EXPECT_TRUE(OpenDocument("embedded_images.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
ASSERT_EQ(39, FPDFPage_CountObject(page));
// Retrieve an image object with flate-encoded data stream.
FPDF_PAGEOBJECT obj = FPDFPage_GetObject(page, 33);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
// Check that the raw image data has the correct length and hash value.
unsigned long len = FPDFImageObj_GetImageDataRaw(obj, nullptr, 0);
std::vector<char> buf(len);
EXPECT_EQ(4091u, FPDFImageObj_GetImageDataRaw(obj, buf.data(), len));
EXPECT_EQ("f73802327d2e88e890f653961bcda81a",
GenerateMD5Base16(reinterpret_cast<uint8_t*>(buf.data()), len));
// Check that the decoded image data has the correct length and hash value.
len = FPDFImageObj_GetImageDataDecoded(obj, nullptr, 0);
buf.clear();
buf.resize(len);
EXPECT_EQ(28776u, FPDFImageObj_GetImageDataDecoded(obj, buf.data(), len));
EXPECT_EQ("cb3637934bb3b95a6e4ae1ea9eb9e56e",
GenerateMD5Base16(reinterpret_cast<uint8_t*>(buf.data()), len));
// Retrieve an image obejct with DCTDecode-encoded data stream.
obj = FPDFPage_GetObject(page, 37);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
// Check that the raw image data has the correct length and hash value.
len = FPDFImageObj_GetImageDataRaw(obj, nullptr, 0);
buf.clear();
buf.resize(len);
EXPECT_EQ(4370u, FPDFImageObj_GetImageDataRaw(obj, buf.data(), len));
EXPECT_EQ("6aae1f3710335023a9e12191be66b64b",
GenerateMD5Base16(reinterpret_cast<uint8_t*>(buf.data()), len));
// Check that the decoded image data has the correct length and hash value,
// which should be the same as those of the raw data, since this image is
// encoded by a single DCTDecode filter and decoding is a noop.
len = FPDFImageObj_GetImageDataDecoded(obj, nullptr, 0);
buf.clear();
buf.resize(len);
EXPECT_EQ(4370u, FPDFImageObj_GetImageDataDecoded(obj, buf.data(), len));
EXPECT_EQ("6aae1f3710335023a9e12191be66b64b",
GenerateMD5Base16(reinterpret_cast<uint8_t*>(buf.data()), len));
UnloadPage(page);
}
TEST_F(FPDFEditEmbeddertest, DestroyPageObject) {
FPDF_PAGEOBJECT rect = FPDFPageObj_CreateNewRect(10, 10, 20, 20);
ASSERT_TRUE(rect);
// There should be no memory leaks with a call to FPDFPageObj_Destroy().
FPDFPageObj_Destroy(rect);
}
TEST_F(FPDFEditEmbeddertest, GetImageFilters) {
EXPECT_TRUE(OpenDocument("embedded_images.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Verify that retrieving the filter of a non-image object would fail.
FPDF_PAGEOBJECT obj = FPDFPage_GetObject(page, 32);
ASSERT_NE(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
ASSERT_EQ(0, FPDFImageObj_GetImageFilterCount(obj));
EXPECT_EQ(0u, FPDFImageObj_GetImageFilter(obj, 0, nullptr, 0));
// Verify the returned filter string for an image object with a single filter.
obj = FPDFPage_GetObject(page, 33);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
ASSERT_EQ(1, FPDFImageObj_GetImageFilterCount(obj));
unsigned long len = FPDFImageObj_GetImageFilter(obj, 0, nullptr, 0);
std::vector<char> buf(len);
EXPECT_EQ(24u, FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
EXPECT_STREQ(L"FlateDecode",
GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
.c_str());
EXPECT_EQ(0u, FPDFImageObj_GetImageFilter(obj, 1, nullptr, 0));
// Verify all the filters for an image object with a list of filters.
obj = FPDFPage_GetObject(page, 38);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
ASSERT_EQ(2, FPDFImageObj_GetImageFilterCount(obj));
len = FPDFImageObj_GetImageFilter(obj, 0, nullptr, 0);
buf.clear();
buf.resize(len);
EXPECT_EQ(30u, FPDFImageObj_GetImageFilter(obj, 0, buf.data(), len));
EXPECT_STREQ(L"ASCIIHexDecode",
GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
.c_str());
len = FPDFImageObj_GetImageFilter(obj, 1, nullptr, 0);
buf.clear();
buf.resize(len);
EXPECT_EQ(20u, FPDFImageObj_GetImageFilter(obj, 1, buf.data(), len));
EXPECT_STREQ(L"DCTDecode",
GetPlatformWString(reinterpret_cast<unsigned short*>(buf.data()))
.c_str());
UnloadPage(page);
}
TEST_F(FPDFEditEmbeddertest, GetImageMetadata) {
ASSERT_TRUE(OpenDocument("embedded_images.pdf"));
FPDF_PAGE page = LoadPage(0);
ASSERT_TRUE(page);
// Check that getting the metadata of a null object would fail.
FPDF_IMAGEOBJ_METADATA metadata;
EXPECT_FALSE(FPDFImageObj_GetImageMetadata(nullptr, page, &metadata));
// Check that receiving the metadata with a null metadata object would fail.
FPDF_PAGEOBJECT obj = FPDFPage_GetObject(page, 35);
EXPECT_FALSE(FPDFImageObj_GetImageMetadata(obj, page, nullptr));
// Check that when retrieving an image object's metadata without passing in
// |page|, all values are correct, with the last two being default values.
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
ASSERT_TRUE(FPDFImageObj_GetImageMetadata(obj, nullptr, &metadata));
EXPECT_EQ(92u, metadata.width);
EXPECT_EQ(68u, metadata.height);
EXPECT_NEAR(96.000000, metadata.horizontal_dpi, 0.001);
EXPECT_NEAR(96.000000, metadata.vertical_dpi, 0.001);
EXPECT_EQ(0u, metadata.bits_per_pixel);
EXPECT_EQ(FPDF_COLORSPACE_UNKNOWN, metadata.colorspace);
// Verify the metadata of a bitmap image with indexed colorspace.
ASSERT_TRUE(FPDFImageObj_GetImageMetadata(obj, page, &metadata));
EXPECT_EQ(92u, metadata.width);
EXPECT_EQ(68u, metadata.height);
EXPECT_NEAR(96.000000, metadata.horizontal_dpi, 0.001);
EXPECT_NEAR(96.000000, metadata.vertical_dpi, 0.001);
EXPECT_EQ(1u, metadata.bits_per_pixel);
EXPECT_EQ(FPDF_COLORSPACE_INDEXED, metadata.colorspace);
// Verify the metadata of an image with RGB colorspace.
obj = FPDFPage_GetObject(page, 37);
ASSERT_EQ(FPDF_PAGEOBJ_IMAGE, FPDFPageObj_GetType(obj));
ASSERT_TRUE(FPDFImageObj_GetImageMetadata(obj, page, &metadata));
EXPECT_EQ(126u, metadata.width);
EXPECT_EQ(106u, metadata.height);
EXPECT_NEAR(162.173752, metadata.horizontal_dpi, 0.001);
EXPECT_NEAR(162.555878, metadata.vertical_dpi, 0.001);
EXPECT_EQ(24u, metadata.bits_per_pixel);
EXPECT_EQ(FPDF_COLORSPACE_DEVICERGB, metadata.colorspace);
UnloadPage(page);
}