From 2914b6f1303445025764ec2d9f01a3be2df5cec0 Mon Sep 17 00:00:00 2001 From: Henrique Nakashima Date: Wed, 17 Jan 2018 20:00:37 +0000 Subject: Fix behavior of FPDF_RenderPageBitmapWithMatrix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This functional part of this CL is mostly a revert of "Change behaviour of FPDF_RenderPageBitmapWithMatrix" 24b0733a72bbc4013bff8628f198b0aea807aa06 Besides the revert, the parameters passed to pPage->GetDisplayMatrix() are changed to fix a bug with the previous implementation: the page was scaled to fit inside the clipping_rect, instead of clipped. Bug: pdfium:849 Change-Id: I95d0a303a979c998026a3bd6963c8684a1209f03 Reviewed-on: https://pdfium-review.googlesource.com/22931 Reviewed-by: Nicolás Peña Moreno Reviewed-by: dsinclair Commit-Queue: Henrique Nakashima --- core/fpdfapi/page/cpdf_page.cpp | 29 ----------------------------- 1 file changed, 29 deletions(-) (limited to 'core/fpdfapi/page/cpdf_page.cpp') diff --git a/core/fpdfapi/page/cpdf_page.cpp b/core/fpdfapi/page/cpdf_page.cpp index c6f4fb2a39..ee7b5d408a 100644 --- a/core/fpdfapi/page/cpdf_page.cpp +++ b/core/fpdfapi/page/cpdf_page.cpp @@ -177,35 +177,6 @@ CFX_Matrix CPDF_Page::GetDisplayMatrix(int xPos, return matrix; } -// This method follows the same apparent logic as GetDisplayMatrix(). For -// example, consider point 0. First, take the top left coordinate of the -// rectangle in the transformed space. Now, calculate what this point was in the -// original space by inverting. Note that this is not necessarily the same as -// the top left corner of the original rectangle. -CFX_Matrix CPDF_Page::GetDisplayMatrixWithTransformation( - int xPos, - int yPos, - int xSize, - int ySize, - const CFX_Matrix& transformation) { - CFX_FloatRect rect(xPos, yPos, xPos + xSize, yPos + ySize); - rect = transformation.TransformRect(rect); - CFX_Matrix inverse = transformation.GetInverse(); - CFX_PointF point0(rect.left, rect.top); - CFX_PointF point1(rect.left, rect.bottom); - CFX_PointF point2(rect.right, rect.top); - point0 = inverse.Transform(point0); - point1 = inverse.Transform(point1); - point2 = inverse.Transform(point2); - - CFX_Matrix matrix = m_PageMatrix; - matrix.Concat(CFX_Matrix( - (point2.x - point0.x) / m_PageWidth, (point2.y - point0.y) / m_PageWidth, - (point1.x - point0.x) / m_PageHeight, - (point1.y - point0.y) / m_PageHeight, point0.x, point0.y)); - return matrix; -} - int CPDF_Page::GetPageRotation() const { CPDF_Object* pRotate = GetPageAttr("Rotate"); int rotate = pRotate ? (pRotate->GetInteger() / 90) % 4 : 0; -- cgit v1.2.3