sw/source/uibase/app/docstyle.cxx                  |   18 +++++---
 vcl/qa/cppunit/pdfexport/data/bitmap-scaledown.odt |binary
 vcl/qa/cppunit/pdfexport/pdfexport.cxx             |   47 ++++++++++++++++++---
 vcl/source/outdev/bitmapex.cxx                     |   10 ----
 4 files changed, 53 insertions(+), 22 deletions(-)

New commits:
commit 8a3548eb859553a930a6120105cd30b3cc0ffeb3
Author:     Miklos Vajna <vmik...@collabora.com>
AuthorDate: Wed Aug 3 09:44:03 2022 +0200
Commit:     Xisco Fauli <xiscofa...@libreoffice.org>
CommitDate: Mon Aug 8 15:59:24 2022 +0200

    tdf#149943 vcl: fix pixelated PDF export and print for a rotated image
    
    The bugdoc has a barcode which looks good in Writer, but it's quite
    blurry in the PDF export result.
    
    This is a problem since commit dd4a67084853a030bf4b9f1f85d728620e0604a5
    (vcl: avoid downscale && upscale in DrawTransformedBitmapEx(),
    2019-10-08), where the motivation was to not downscale a bitmap in case
    it has a larger amount of pixels but a smaller logic size. This went
    wrong here and resulted in a blurry bitmap for a not so small image.
    
    Fix the problem by mostly reverting the above commit, because it's no
    longer necessary: 68549e00d5e23aa22bc974a8151d93cd948444b3 (vcl,
    BitmapEx transformed draw: special-case simple rotations, 2019-10-10)
    already made sure that the rotation case doesn't use scaling from the
    transform.
    
    testTdf128630 has been adapted to pass again (after manually verifying
    that the bugdoc export result is still OK), now the bad case there
    simply produces a smaller bitmap.
    
    (cherry picked from commit 7c94d7267bc8b5f43185204ab4953c4b188214bf)
    
    Change-Id: Ib28881c129a0cf037a96eecd065e5cadede97051
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137743
    Tested-by: Jenkins
    Reviewed-by: Caolán McNamara <caol...@redhat.com>
    Signed-off-by: Xisco Fauli <xiscofa...@libreoffice.org>
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137950

diff --git a/vcl/qa/cppunit/pdfexport/data/bitmap-scaledown.odt 
b/vcl/qa/cppunit/pdfexport/data/bitmap-scaledown.odt
new file mode 100644
index 000000000000..da9b167fd9d7
Binary files /dev/null and b/vcl/qa/cppunit/pdfexport/data/bitmap-scaledown.odt 
differ
diff --git a/vcl/qa/cppunit/pdfexport/pdfexport.cxx 
b/vcl/qa/cppunit/pdfexport/pdfexport.cxx
index a3b351056228..5701fe613a35 100644
--- a/vcl/qa/cppunit/pdfexport/pdfexport.cxx
+++ b/vcl/qa/cppunit/pdfexport/pdfexport.cxx
@@ -1513,7 +1513,7 @@ CPPUNIT_TEST_FIXTURE(PdfExportTest, testTdf128630)
     // The document has one page.
     CPPUNIT_ASSERT_EQUAL(1, pPdfDocument->getPageCount());
 
-    // Assert the aspect ratio of the only bitmap on the page.
+    // Assert the size of the only bitmap on the page.
     std::unique_ptr<vcl::pdf::PDFiumPage> pPdfPage = 
pPdfDocument->openPage(/*nIndex=*/0);
     CPPUNIT_ASSERT(pPdfPage);
     int nPageObjectCount = pPdfPage->getObjectCount();
@@ -1526,12 +1526,13 @@ CPPUNIT_TEST_FIXTURE(PdfExportTest, testTdf128630)
         std::unique_ptr<vcl::pdf::PDFiumBitmap> pBitmap = 
pPageObject->getImageBitmap();
         CPPUNIT_ASSERT(pBitmap);
         int nWidth = pBitmap->getWidth();
-        int nHeight = pBitmap->getHeight();
         // Without the accompanying fix in place, this test would have failed 
with:
-        // assertion failed
-        // - Expression: nWidth != nHeight
-        // i.e. the bitmap lost its custom aspect ratio during export.
-        CPPUNIT_ASSERT(nWidth != nHeight);
+        // - Expected: 466
+        // - Actual  : 289
+        // i.e. the rotated + scaled arrow was more thin than it should be.
+        CPPUNIT_ASSERT_EQUAL(466, nWidth);
+        int nHeight = pBitmap->getHeight();
+        CPPUNIT_ASSERT_EQUAL(466, nHeight);
     }
 }
 
@@ -3183,6 +3184,40 @@ CPPUNIT_TEST_FIXTURE(PdfExportTest, testPdfImageAnnots)
     // i.e. not only the hyperlink but also the 2 comments were exported, 
leading to duplication.
     CPPUNIT_ASSERT_EQUAL(1, pPdfPage->getAnnotationCount());
 }
+
+CPPUNIT_TEST_FIXTURE(PdfExportTest, testBitmapScaledown)
+{
+    // Given a document with an upscaled and rotated barcode bitmap in it:
+    aMediaDescriptor["FilterName"] <<= OUString("writer_pdf_Export");
+
+    // When saving as PDF:
+    saveAsPDF(u"bitmap-scaledown.odt");
+
+    // Then verify that the bitmap is not downscaled:
+    std::unique_ptr<vcl::pdf::PDFiumDocument> pPdfDocument = parseExport();
+    CPPUNIT_ASSERT(pPdfDocument);
+    CPPUNIT_ASSERT_EQUAL(1, pPdfDocument->getPageCount());
+    std::unique_ptr<vcl::pdf::PDFiumPage> pPdfPage = 
pPdfDocument->openPage(/*nIndex=*/0);
+    CPPUNIT_ASSERT(pPdfPage);
+    int nPageObjectCount = pPdfPage->getObjectCount();
+    for (int i = 0; i < nPageObjectCount; ++i)
+    {
+        std::unique_ptr<vcl::pdf::PDFiumPageObject> pPageObject = 
pPdfPage->getObject(i);
+        if (pPageObject->getType() != vcl::pdf::PDFPageObjectType::Image)
+            continue;
+
+        std::unique_ptr<vcl::pdf::PDFiumBitmap> pBitmap = 
pPageObject->getImageBitmap();
+        CPPUNIT_ASSERT(pBitmap);
+        // In-file sizes: good is 2631x380, bad is 1565x14.
+        int nWidth = pBitmap->getWidth();
+        // Without the accompanying fix in place, this test would have failed 
with:
+        // - Expected: 2616
+        // - Actual  : 1565
+        // i.e. the bitmap in the pdf result was small enough to be blurry.
+        CPPUNIT_ASSERT_EQUAL(2616, nWidth);
+    }
+}
+
 } // end anonymous namespace
 
 CPPUNIT_PLUGIN_IMPLEMENT();
diff --git a/vcl/source/outdev/bitmapex.cxx b/vcl/source/outdev/bitmapex.cxx
index 7855d1ae5613..bf84bb35d963 100644
--- a/vcl/source/outdev/bitmapex.cxx
+++ b/vcl/source/outdev/bitmapex.cxx
@@ -624,19 +624,9 @@ void OutputDevice::DrawTransformedBitmapEx(
         aTransformed = BitmapEx(aContent, aMaskBmp);
     }
 
-    // Remove scaling from aFulltransform: we transform due to shearing or 
rotation, scaling
-    // will happen according to aDestSize.
     basegfx::B2DVector aFullScale, aFullTranslate;
     double fFullRotate, fFullShearX;
     aFullTransform.decompose(aFullScale, aFullTranslate, fFullRotate, 
fFullShearX);
-    // Require positive scaling, negative scaling would loose horizontal or 
vertical flip.
-    if (aFullScale.getX() > 0 && aFullScale.getY() > 0)
-    {
-        basegfx::B2DHomMatrix aTransform = 
basegfx::utils::createScaleB2DHomMatrix(
-            rOriginalSizePixel.getWidth() / aFullScale.getX(),
-            rOriginalSizePixel.getHeight() / aFullScale.getY());
-        aFullTransform *= aTransform;
-    }
 
     double fSourceRatio = 1.0;
     if (rOriginalSizePixel.getHeight() != 0)
commit b87c3e7ecb7e9f1914cc81a1758f9f2aa5170f78
Author:     Mike Kaganski <mike.kagan...@collabora.com>
AuthorDate: Wed Aug 3 09:47:40 2022 +0300
Commit:     Xisco Fauli <xiscofa...@libreoffice.org>
CommitDate: Mon Aug 8 15:59:11 2022 +0200

    tdf#150241: a blind fix attempt
    
    I can't repro it locally (the report misses clear repro steps), but
    the three changed OUString assignment operators use rtl::str::assign
    internally, and the unconditional dereference of the value returned
    from SwDoc::GetDocPattern (that may return a nullptr) is suspicious,
    especially compared to the checks made in SwDocStyleSheet::GetHelpId
    later in the same file.
    
    All four calls to GetDocPattern in the file were introduced in commit
    7b0b5cdfeed656b279bc32cd929630d5fc25878b
      Author Jens-Heiner Rechtien <h...@openoffice.org>
      Date   Mon Sep 18 16:15:01 2000 +0000
        initial import
    
    Change-Id: If9d4cff921443e5af71b7d541b79d00ea77e853b
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137734
    Tested-by: Jenkins
    Reviewed-by: Mike Kaganski <mike.kagan...@collabora.com>
    (cherry picked from commit 4afb80eaa0df58b78e2bfad892f9e7ce5e1bce7a)
    Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137962
    Reviewed-by: Xisco Fauli <xiscofa...@libreoffice.org>

diff --git a/sw/source/uibase/app/docstyle.cxx 
b/sw/source/uibase/app/docstyle.cxx
index 398f8775ba47..8ab68590c1a9 100644
--- a/sw/source/uibase/app/docstyle.cxx
+++ b/sw/source/uibase/app/docstyle.cxx
@@ -1986,8 +1986,10 @@ bool SwDocStyleSheet::FillStyleSheet(
         {
             nPoolId = m_pDesc->GetPoolFormatId();
             nHelpId = m_pDesc->GetPoolHelpId();
-            if( m_pDesc->GetPoolHlpFileId() != UCHAR_MAX )
-                aHelpFile = *m_rDoc.GetDocPattern( m_pDesc->GetPoolHlpFileId() 
);
+            if (const OUString* pattern = m_pDesc->GetPoolHlpFileId() != 
UCHAR_MAX
+                                              ? 
m_rDoc.GetDocPattern(m_pDesc->GetPoolHlpFileId())
+                                              : nullptr)
+                aHelpFile = *pattern;
             else
                 aHelpFile.clear();
         }
@@ -2015,8 +2017,10 @@ bool SwDocStyleSheet::FillStyleSheet(
         {
             nPoolId = m_pNumRule->GetPoolFormatId();
             nHelpId = m_pNumRule->GetPoolHelpId();
-            if( m_pNumRule->GetPoolHlpFileId() != UCHAR_MAX )
-                aHelpFile = *m_rDoc.GetDocPattern( 
m_pNumRule->GetPoolHlpFileId() );
+            if (const OUString* pattern = m_pNumRule->GetPoolHlpFileId() != 
UCHAR_MAX
+                                              ? 
m_rDoc.GetDocPattern(m_pNumRule->GetPoolHlpFileId())
+                                              : nullptr)
+                aHelpFile = *pattern;
             else
                 aHelpFile.clear();
         }
@@ -2071,8 +2075,10 @@ bool SwDocStyleSheet::FillStyleSheet(
             OSL_ENSURE( m_bPhysical, "Format not found" );
 
             nHelpId = pFormat->GetPoolHelpId();
-            if( pFormat->GetPoolHlpFileId() != UCHAR_MAX )
-                aHelpFile = *m_rDoc.GetDocPattern( pFormat->GetPoolHlpFileId() 
);
+            if (const OUString* pattern = pFormat->GetPoolHlpFileId() != 
UCHAR_MAX
+                                              ? 
m_rDoc.GetDocPattern(pFormat->GetPoolHlpFileId())
+                                              : nullptr)
+                aHelpFile = *pattern;
             else
                 aHelpFile.clear();
 

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