Add line width option for stroking paths BUG=pdfium:661 Change-Id: Ie1dc82a1323a35ebbd63a5b7b8f8c95f9a5325fe Reviewed-on: https://pdfium-review.googlesource.com/2613 Reviewed-by: Tom Sepez <tsepez@chromium.org> Commit-Queue: Nicolás Peña <npm@chromium.org>
diff --git a/core/fpdfapi/edit/cpdf_pagecontentgenerator.cpp b/core/fpdfapi/edit/cpdf_pagecontentgenerator.cpp index a5bd741..9de97ee 100644 --- a/core/fpdfapi/edit/cpdf_pagecontentgenerator.cpp +++ b/core/fpdfapi/edit/cpdf_pagecontentgenerator.cpp
@@ -192,6 +192,7 @@ // values cannot be obtained. The method also adds an external graphics // dictionary, as described in Section 4.3.4. // "rg" sets the fill color, "RG" sets the stroke color (using DefaultRGB) +// "w" sets the stroke line width. // "ca" sets the fill alpha, "CA" sets the stroke alpha. // "q" saves the graphics state, so that the settings can later be reversed void CPDF_PageContentGenerator::ProcessGraphics(CFX_ByteTextBuf* buf, @@ -207,6 +208,9 @@ *buf << strokeColor[0] << " " << strokeColor[1] << " " << strokeColor[2] << " RG "; } + FX_FLOAT lineWidth = pPageObj->m_GraphState.GetLineWidth(); + if (lineWidth != 1.0f) + *buf << lineWidth << " w "; GraphicsData graphD; graphD.fillAlpha = pPageObj->m_GeneralState.GetFillAlpha();
diff --git a/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp b/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp index 3267f52..4846b1b 100644 --- a/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp +++ b/core/fpdfapi/edit/cpdf_pagecontentgenerator_unittest.cpp
@@ -167,4 +167,17 @@ ASSERT_TRUE(externalGS); EXPECT_EQ(0.5f, externalGS->GetNumberFor("ca")); EXPECT_EQ(0.8f, externalGS->GetNumberFor("CA")); + + // Same path, now with a stroke. + pPathObj->m_GraphState.SetLineWidth(10.5f); + buf.Clear(); + TestProcessPath(&generator, &buf, pPathObj.get()); + CFX_ByteString pathString2 = buf.MakeString(); + EXPECT_EQ("q 0.501961 0.701961 0.34902 rg 1 0.901961 0 RG 10.5 w /", + pathString2.Left(55)); + EXPECT_EQ(" gs 1 2 m 3 4 l 5 6 l h B Q\n", pathString2.Right(28)); + // Compare with the previous (should use same dictionary for gs) + EXPECT_EQ(pathString.GetLength() + 7, pathString2.GetLength()); + EXPECT_EQ(pathString.Mid(48, pathString.GetLength() - 76), + pathString2.Mid(55, pathString2.GetLength() - 83)); }
diff --git a/fpdfsdk/fpdfedit_embeddertest.cpp b/fpdfsdk/fpdfedit_embeddertest.cpp index 4a67c17..83d2631 100644 --- a/fpdfsdk/fpdfedit_embeddertest.cpp +++ b/fpdfsdk/fpdfedit_embeddertest.cpp
@@ -267,3 +267,54 @@ FPDFBitmap_Destroy(bitmap); UnloadPage(page); } + +TEST_F(FPDFEditEmbeddertest, AddStrokedPaths) { + // Start with a blank page + FPDF_DOCUMENT doc = FPDF_CreateNewDocument(); + FPDF_PAGE page = FPDFPage_New(doc, 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); + FPDF_CloseDocument(doc); +}
diff --git a/fpdfsdk/fpdfeditpath.cpp b/fpdfsdk/fpdfeditpath.cpp index 1d3673c..f6e103c 100644 --- a/fpdfsdk/fpdfeditpath.cpp +++ b/fpdfsdk/fpdfeditpath.cpp
@@ -41,6 +41,15 @@ return true; } +DLLEXPORT FPDF_BOOL FPDFPath_SetStrokeWidth(FPDF_PAGEOBJECT path, float width) { + if (!path || width < 0.0f) + return false; + + auto pPathObj = reinterpret_cast<CPDF_PathObject*>(path); + pPathObj->m_GraphState.SetLineWidth(width); + return true; +} + DLLEXPORT FPDF_BOOL FPDFPath_SetFillColor(FPDF_PAGEOBJECT path, unsigned int R, unsigned int G,
diff --git a/public/fpdf_edit.h b/public/fpdf_edit.h index d151c5c..a43d181 100644 --- a/public/fpdf_edit.h +++ b/public/fpdf_edit.h
@@ -299,6 +299,14 @@ unsigned int B, unsigned int A); +// Set the stroke width of a path. +// +// path - the handle to the path object. +// width - the width of the stroke. +// +// Returns TRUE on success +DLLEXPORT FPDF_BOOL FPDFPath_SetStrokeWidth(FPDF_PAGEOBJECT path, float width); + // Set the fill RGBA of a path. Range of values: 0 - 255. // // path - the handle to the path object.