// 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 "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/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, public TestSaver { protected: FPDF_DOCUMENT CreateNewDocument() { document_ = FPDF_CreateNewDocument(); cpdf_doc_ = reinterpret_cast<CPDF_Document*>(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" "<</Contents 5 0 R /MediaBox\\[ 0 0 640 480\\]" "/Parent 2 0 R /Resources<<>>/Rotate 0/Type/Page" ">>\r\n" "endobj\r\n" "5 0 obj\r\n" "<</Filter/FlateDecode/Length 8>>stream\r\n" // Character '_' is matching '\0' (see comment below). "x\x9C\x3____\x1\r\n" "endstream\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" "0000000301 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" "379\r\n" "%%EOF\r\n"; int GetBlockFromString(void* param, unsigned long pos, unsigned char* buf, unsigned long size) { std::string* new_file = static_cast<std::string*>(param); if (!new_file || pos + size < pos) return 0; unsigned long file_size = new_file->size(); if (pos + size > file_size) return 0; memcpy(buf, new_file->data() + pos, size); return 1; } } // namespace TEST_F(FPDFEditEmbeddertest, EmptyCreation) { EXPECT_TRUE(CreateEmptyDocument()); FPDF_PAGE page = FPDFPage_New(document(), 0, 640.0, 480.0); EXPECT_NE(nullptr, page); EXPECT_TRUE(FPDFPage_GenerateContent(page)); EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0)); // The MatchesRegexp doesn't support embedded NUL ('\0') characters. They are // replaced by '_' for the purpose of the test. std::string result = GetString(); std::replace(result.begin(), result.end(), '\0', '_'); EXPECT_THAT(result, 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. std::string new_file = GetString(); EXPECT_GT(new_file.size(), 923U); // Read |new_file| in, and verify its rendered bitmap. { FPDF_FILEACCESS file_access; memset(&file_access, 0, sizeof(file_access)); file_access.m_FileLen = new_file.size(); file_access.m_GetBlock = GetBlockFromString; file_access.m_Param = &new_file; FPDF_DOCUMENT new_doc = FPDF_LoadCustomDocument(&file_access, nullptr); EXPECT_EQ(1, FPDF_GetPageCount(document_)); FPDF_PAGE new_page = FPDF_LoadPage(new_doc, 0); EXPECT_NE(nullptr, new_page); FPDF_BITMAP new_bitmap = RenderPage(new_page); CompareBitmap(new_bitmap, 612, 792, kAllBlackMd5sum); FPDF_ClosePage(new_page); FPDF_CloseDocument(new_doc); FPDFBitmap_Destroy(new_bitmap); } } 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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)); EXPECT_TRUE(FPDFPath_SetDrawMode(green_rect, FPDF_FILLMODE_WINDING, 0)); FPDFPage_InsertObject(page, green_rect); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); page_bitmap = RenderPage(page); CompareBitmap(page_bitmap, 612, 792, "9823e1a21bd9b72b6a442ba4f12af946"); FPDFBitmap_Destroy(page_bitmap); // Now save the result, closing the page and document EXPECT_TRUE(FPDF_SaveAsCopy(document(), this, 0)); FPDF_ClosePage(page); std::string new_file = GetString(); // Render the saved result FPDF_FILEACCESS file_access; memset(&file_access, 0, sizeof(file_access)); file_access.m_FileLen = new_file.size(); file_access.m_GetBlock = GetBlockFromString; file_access.m_Param = &new_file; FPDF_DOCUMENT new_doc = FPDF_LoadCustomDocument(&file_access, nullptr); ASSERT_NE(nullptr, new_doc); EXPECT_EQ(1, FPDF_GetPageCount(new_doc)); FPDF_PAGE new_page = FPDF_LoadPage(new_doc, 0); ASSERT_NE(nullptr, new_page); FPDF_BITMAP new_bitmap = RenderPage(new_page); CompareBitmap(new_bitmap, 612, 792, "9823e1a21bd9b72b6a442ba4f12af946"); FPDFBitmap_Destroy(new_bitmap); FPDF_ClosePage(new_page); FPDF_CloseDocument(new_doc); } 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); // 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); // 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[] = "2fdfc5dda29374cfba4349362e38ebdb"; #endif CompareBitmap(bitmap, 200, 200, md5); FPDFBitmap_Destroy(bitmap); UnloadPage(page); } 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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 text1 = FPDFPageObj_NewTextObj(document(), "Arial", 12.0f); EXPECT_TRUE(text1); EXPECT_TRUE(FPDFText_SetText(text1, "I'm at the bottom of the page")); FPDFPageObj_Transform(text1, 1, 0, 0, 1, 20, 20); FPDFPage_InsertObject(page, text1); EXPECT_TRUE(FPDFPage_GenerateContent(page)); FPDF_BITMAP page_bitmap = RenderPage(page); #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ const char md5[] = "a4dddc1a3930fa694bbff9789dab4161"; #else const char md5[] = "6e8a9b0682f60fd3ff1bf087b093d30d"; #endif CompareBitmap(page_bitmap, 612, 792, md5); FPDFBitmap_Destroy(page_bitmap); // Try another font FPDF_PAGEOBJECT text2 = FPDFPageObj_NewTextObj(document(), "TimesNewRomanBold", 15.0f); EXPECT_TRUE(text2); EXPECT_TRUE(FPDFText_SetText(text2, "Hi, I'm Bold. Times New Roman Bold.")); FPDFPageObj_Transform(text2, 1, 0, 0, 1, 100, 600); FPDFPage_InsertObject(page, text2); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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[] = "56863642d4d8b418cfd810fdb5a5d92f"; #else const char md5_2[] = "0c83875429688bda45a55a692d5aa781"; #endif CompareBitmap(page_bitmap, 612, 792, md5_2); FPDFBitmap_Destroy(page_bitmap); // And some randomly transformed text FPDF_PAGEOBJECT text3 = FPDFPageObj_NewTextObj(document(), "Courier-Bold", 20.0f); EXPECT_TRUE(text3); EXPECT_TRUE(FPDFText_SetText(text3, "Can you read me? <:)>")); FPDFPageObj_Transform(text3, 1, 1.5, 2, 0.5, 200, 200); FPDFPage_InsertObject(page, text3); EXPECT_TRUE(FPDFPage_GenerateContent(page)); 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[] = "174f30c36c73adb265c0f6ddb3a61c87"; #else const char md5_3[] = "abfa9246d60f821b5b7638efd32dfd92"; #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, 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(1, 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(2, 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(2, 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 = FPDFPageObj_NewTextObj(document(), "Arial", 12.0f); EXPECT_TRUE(FPDFText_SetText(text, "Something something #text# something")); FPDFPageObj_Transform(text, 1, 0, 0, 1, 300, 300); FPDFPage_InsertObject(page, text); 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(2, 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->m_Font.GetFontData(); const uint32_t size = stock_font->m_Font.GetSize(); FPDF_FONT font = FPDFText_LoadFont(document(), data, size, FPDF_FONT_TYPE1, false); ASSERT_TRUE(font); CPDF_Font* typed_font = reinterpret_cast<CPDF_Font*>(font); 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->m_Font.GetFontData(); const uint32_t size = stock_font->m_Font.GetSize(); FPDF_FONT font = FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, false); ASSERT_TRUE(font); CPDF_Font* typed_font = reinterpret_cast<CPDF_Font*>(font); 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->m_Font.GetFontData(); const uint32_t size = stock_font->m_Font.GetSize(); FPDF_FONT font = FPDFText_LoadFont(document(), data, size, FPDF_FONT_TYPE1, 1); ASSERT_TRUE(font); CPDF_Font* typed_font = reinterpret_cast<CPDF_Font*>(font); 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); // Note: widths can be described in different ways in the widths array. The // following checks are specific to our current implementation. EXPECT_EQ(32, widths_array->GetNumberAt(0)); CPDF_Array* arr = widths_array->GetArrayAt(1); ASSERT_TRUE(arr); // This font support chars 32 to 126 EXPECT_EQ(95U, arr->GetCount()); EXPECT_EQ(250, arr->GetNumberAt(0)); EXPECT_EQ(610, arr->GetNumberAt(44)); EXPECT_EQ(541, arr->GetNumberAt(94)); // Next range: 160 - 383 EXPECT_EQ(160, widths_array->GetNumberAt(2)); arr = widths_array->GetArrayAt(3); ASSERT_TRUE(arr); 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->m_Font.GetFontData(); const uint32_t size = stock_font->m_Font.GetSize(); FPDF_FONT font = FPDFText_LoadFont(document(), data, size, FPDF_FONT_TRUETYPE, 1); ASSERT_TRUE(font); CPDF_Font* typed_font = reinterpret_cast<CPDF_Font*>(font); 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); }