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authorMike Kaganski <mike.kaganski@collabora.com>2022-06-27 15:29:25 +0300
committerAndras Timar <andras.timar@collabora.com>2022-07-02 16:04:21 +0200
commitc32605e54a4525c5ad80e273f17e657e9e601b13 (patch)
treefe9669b0d9f809b445b70bc821f322dd53b2e7f5 /oox/source
parent5194c946d80426d2cfe8ce9fb093c50722793c4b (diff)
Integer division could cancel small values of wrong sign
... as seen at some documents where the values are like -1. There the checks in pushToPropMap may pass (the division result would be 0), but the original small negative values would fail the asserts that were introduced in commit 5772cef244dbee5834efbc693bc714d89ae6301d Author Mike Kaganski <mike.kaganski@collabora.com> Date Wed Jun 15 18:33:38 2022 +0300 tdf#134210: Reimplement cropping from srcRect and fillRect Change-Id: I114588862b5cfd2b2e4491424430cc139bdbaae9 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/136492 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolanm@redhat.com> (cherry picked from commit 2d9f3c066a065d6aa98f1e594dcf8a091fec2bde) Reviewed-on: https://gerrit.libreoffice.org/c/core/+/136471 Reviewed-by: Xisco Fauli <xiscofauli@libreoffice.org> Signed-off-by: Xisco Fauli <xiscofauli@libreoffice.org> Reviewed-on: https://gerrit.libreoffice.org/c/core/+/136556
Diffstat (limited to 'oox/source')
-rw-r--r--oox/source/drawingml/fillproperties.cxx12
1 files changed, 8 insertions, 4 deletions
diff --git a/oox/source/drawingml/fillproperties.cxx b/oox/source/drawingml/fillproperties.cxx
index ecf717d99f4a..a678524035b9 100644
--- a/oox/source/drawingml/fillproperties.cxx
+++ b/oox/source/drawingml/fillproperties.cxx
@@ -97,8 +97,10 @@ Quotients getQuotients(geometry::IntegerRectangle2D aRelRect, double hDiv, doubl
// ECMA-376 Part 1 20.1.8.55 srcRect (Source Rectangle)
std::optional<Quotients> CropQuotientsFromSrcRect(geometry::IntegerRectangle2D aSrcRect)
{
- // Currently the following precondition is guaranteed in GraphicProperties::pushToPropMap
- assert(aSrcRect.X1 >= 0 && aSrcRect.X2 >= 0 && aSrcRect.Y1 >= 0 && aSrcRect.Y2 >= 0);
+ aSrcRect.X1 = std::max(aSrcRect.X1, sal_Int32(0));
+ aSrcRect.X2 = std::max(aSrcRect.X2, sal_Int32(0));
+ aSrcRect.Y1 = std::max(aSrcRect.Y1, sal_Int32(0));
+ aSrcRect.Y2 = std::max(aSrcRect.Y2, sal_Int32(0));
if (aSrcRect.X1 + aSrcRect.X2 >= 100'000 || aSrcRect.Y1 + aSrcRect.Y2 >= 100'000)
return {}; // Cropped everything
return getQuotients(aSrcRect, 100'000.0, 100'000.0);
@@ -107,8 +109,10 @@ std::optional<Quotients> CropQuotientsFromSrcRect(geometry::IntegerRectangle2D a
// ECMA-376 Part 1 20.1.8.30 fillRect (Fill Rectangle)
std::optional<Quotients> CropQuotientsFromFillRect(geometry::IntegerRectangle2D aFillRect)
{
- // Currently the following precondition is guaranteed in FillProperties::pushToPropMap
- assert(aFillRect.X1 <= 0 && aFillRect.X2 <= 0 && aFillRect.Y1 <= 0 && aFillRect.Y2 <= 0);
+ aFillRect.X1 = std::min(aFillRect.X1, sal_Int32(0));
+ aFillRect.X2 = std::min(aFillRect.X2, sal_Int32(0));
+ aFillRect.Y1 = std::min(aFillRect.Y1, sal_Int32(0));
+ aFillRect.Y2 = std::min(aFillRect.Y2, sal_Int32(0));
// Negative divisor and negative relative offset give positive value wanted in lclCropGraphic
return getQuotients(aFillRect, -100'000.0 + aFillRect.X1 + aFillRect.X2,
-100'000.0 + aFillRect.Y1 + aFillRect.Y2);