sw/qa/extras/tiledrendering/data/tdf117448.fodt | 29 +++++++++++++++++++++
sw/qa/extras/tiledrendering/tiledrendering.cxx | 32 ++++++++++++++++++++++++
sw/source/core/text/itrpaint.cxx | 8 +++++-
sw/source/core/text/txtpaint.cxx | 11 +++++++-
sw/source/core/text/txtpaint.hxx | 11 ++++++--
5 files changed, 86 insertions(+), 5 deletions(-)
New commits:
commit b6ef43f678c55330d7d8174201fadc55d5381f42
Author: László Németh <nem...@numbertext.org>
AuthorDate: Fri Mar 20 15:12:06 2020 +0100
Commit: László Németh <nem...@numbertext.org>
CommitDate: Wed Apr 1 17:22:30 2020 +0200
tdf#117448 Writer table: don't clip text on margins
Use area of paragraph margins to show top and bottom
of the clipped text at small fixed line height, like
MSO does. This results noticeable difference in tables,
where small fixed line height is a method to set narrow
table rows, but LibreOffice hid top and bottom of the
characters according to the line height which is smaller,
than the character height.
Note: PDF export has already showed top and bottom of the
characters in this case, and not in tables. But according
to the editing glitches (missing update of the clipped
area during typing), we don't want to extend this behaviour
for not table content, yet.
Change-Id: I7aff5405314948f301bfb71bf35cc1911e194f8b
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/90798
Tested-by: Jenkins
Reviewed-by: László Németh <nem...@numbertext.org>
diff --git a/sw/qa/extras/tiledrendering/data/tdf117448.fodt
b/sw/qa/extras/tiledrendering/data/tdf117448.fodt
new file mode 100644
index 000000000000..eccadee25974
--- /dev/null
+++ b/sw/qa/extras/tiledrendering/data/tdf117448.fodt
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<office:document
xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0"
xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0"
xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0"
xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0"
xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0"
xmlns:officeooo="http://openoffice.org/2009/office";
xmlns:loext="urn:org:documentfoundation:names:experimental:office:xmlns:loext:1.0"
office:version="1.2" office:mimetype="application/vnd.oasis.opendocument.text">
+ <office:styles>
+ <style:style style:name="Standard" style:family="paragraph"
style:class="text"/>
+ <style:style style:name="Text_20_body" style:display-name="Text body"
style:family="paragraph" style:parent-style-name="Standard" style:class="text">
+ <style:paragraph-properties fo:margin-top="0pt" fo:margin-bottom="7pt"
loext:contextual-spacing="false" fo:line-height="115%"/>
+ </style:style>
+ </office:styles>
+ <office:automatic-styles>
+ <style:style style:name="P1" style:family="paragraph"
style:parent-style-name="Standard">
+ <style:paragraph-properties fo:margin-top="6.01pt"
fo:margin-bottom="6.01pt" loext:contextual-spacing="false"
fo:line-height="6.01pt"/>
+ </style:style>
+ </office:automatic-styles>
+ <office:master-styles>
+ <style:master-page style:name="Standard" style:page-layout-name="pm1"/>
+ </office:master-styles>
+ <office:body>
+ <office:text>
+ <table:table table:name="Táblázat1" table:style-name="Táblázat1">
+ <table:table-column table:style-name="Táblázat1.A"/>
+ <table:table-row>
+ <table:table-cell table:style-name="Táblázat1.A1"
office:value-type="string">
+ <text:p text:style-name="P1">Text without clipping.</text:p>
+ </table:table-cell>
+ </table:table-row>
+ </table:table>
+ </office:text>
+ </office:body>
+</office:document>
diff --git a/sw/qa/extras/tiledrendering/tiledrendering.cxx
b/sw/qa/extras/tiledrendering/tiledrendering.cxx
index 1e8baea4312f..e6272136f4ab 100644
--- a/sw/qa/extras/tiledrendering/tiledrendering.cxx
+++ b/sw/qa/extras/tiledrendering/tiledrendering.cxx
@@ -121,6 +121,7 @@ public:
void testVisCursorInvalidation();
void testDeselectCustomShape();
void testSemiTransparent();
+ void testClipText();
void testAnchorTypes();
void testLanguageStatus();
void testRedlineNotificationDuringSave();
@@ -184,6 +185,7 @@ public:
CPPUNIT_TEST(testVisCursorInvalidation);
CPPUNIT_TEST(testDeselectCustomShape);
CPPUNIT_TEST(testSemiTransparent);
+ CPPUNIT_TEST(testClipText);
CPPUNIT_TEST(testAnchorTypes);
CPPUNIT_TEST(testLanguageStatus);
CPPUNIT_TEST(testRedlineNotificationDuringSave);
@@ -2382,6 +2384,36 @@ void SwTiledRenderingTest::testSemiTransparent()
CPPUNIT_ASSERT_GREATEREQUAL(190, static_cast<int>(aColor.B));
}
+void SwTiledRenderingTest::testClipText()
+{
+ // Load a document where the top left tile contains table text with
+ // too small line height, but with top and bottom paragraph margins,
+ // avoiding of clipping top and bottom parts of the characters.
+ SwXTextDocument* pXTextDocument = createDoc("tdf117448.fodt");
+
+ // Render a larger area, and then get the top and bottom of the text in
that tile
+ size_t nCanvasWidth = 1024;
+ size_t nCanvasHeight = 512;
+ size_t nTileSize = 256;
+ std::vector<unsigned char> aPixmap(nCanvasWidth * nCanvasHeight * 4, 0);
+ ScopedVclPtrInstance<VirtualDevice> pDevice(DeviceFormat::DEFAULT);
+ pDevice->SetBackground(Wallpaper(COL_TRANSPARENT));
+ pDevice->SetOutputSizePixelScaleOffsetAndBuffer(Size(nCanvasWidth,
nCanvasHeight),
+ Fraction(1.0), Point(),
aPixmap.data());
+ pXTextDocument->paintTile(*pDevice, nCanvasWidth, nCanvasHeight,
/*nTilePosX=*/0,
+ /*nTilePosY=*/0, /*nTileWidth=*/15360,
/*nTileHeight=*/7680);
+ pDevice->EnableMapMode(false);
+ Bitmap aBitmap = pDevice->GetBitmap(Point(0, 0), Size(nTileSize,
nTileSize));
+ Bitmap::ScopedReadAccess pAccess(aBitmap);
+
+ // check top of the letter "T", it's not a white pixel
+ Color aTopTextColor(pAccess->GetPixel(98, 100));
+ CPPUNIT_ASSERT_LESS(255, static_cast<int>(aTopTextColor.R));
+ // check bottom of the letter "g", it's not a white pixel
+ Color aBottomTextColor(pAccess->GetPixel(112, 228));
+ CPPUNIT_ASSERT_LESS(255, static_cast<int>(aBottomTextColor.R));
+}
+
void SwTiledRenderingTest::testAnchorTypes()
{
SwXTextDocument* pXTextDocument = createDoc("shape.fodt");
diff --git a/sw/source/core/text/itrpaint.cxx b/sw/source/core/text/itrpaint.cxx
index 30889d15f2d4..28eb142d63af 100644
--- a/sw/source/core/text/itrpaint.cxx
+++ b/sw/source/core/text/itrpaint.cxx
@@ -224,7 +224,13 @@ void SwTextPainter::DrawTextLine( const SwRect &rPaint,
SwSaveClip &rClip,
if( m_pCurr->IsClipping() )
{
- rClip.ChgClip( aLineRect, m_pFrame );
+ const SwTextFrame& rFrame = *GetInfo().GetTextFrame();
+ // tdf#117448 at small fixed line height, enlarge clipping area in
table cells
+ // to show previously clipped text content on the area of paragraph
margins
+ if ( rFrame.IsInTab() )
+ rClip.ChgClip( aLineRect, m_pFrame, false, rFrame.GetTopMargin(),
rFrame.GetBottomMargin() );
+ else
+ rClip.ChgClip( aLineRect, m_pFrame );
bClip = false;
}
diff --git a/sw/source/core/text/txtpaint.cxx b/sw/source/core/text/txtpaint.cxx
index 0518d3330b70..e2292d70beef 100644
--- a/sw/source/core/text/txtpaint.cxx
+++ b/sw/source/core/text/txtpaint.cxx
@@ -41,7 +41,9 @@ SwSaveClip::~SwSaveClip()
}
void SwSaveClip::ChgClip_( const SwRect &rRect, const SwTextFrame* pFrame,
- bool bEnlargeRect )
+ bool bEnlargeRect,
+ sal_Int32 nEnlargeTop,
+ sal_Int32 nEnlargeBottom )
{
SwRect aOldRect( rRect );
const bool bVertical = pFrame && pFrame->IsVertical();
@@ -78,6 +80,13 @@ void SwSaveClip::ChgClip_( const SwRect &rRect, const
SwTextFrame* pFrame,
if ( bEnlargeRect && ! bVertical )
aRect.AdjustBottom(40 );
+ // enlarge clip for paragraph margins at small fixed line height
+ if ( nEnlargeTop > 0 )
+ aRect.AdjustTop( -nEnlargeTop );
+
+ if ( nEnlargeBottom > 0 )
+ aRect.AdjustBottom( nEnlargeBottom );
+
// If the ClipRect is identical, nothing will happen
if( pOut->IsClipRegion() ) // no && because of Mac
{
diff --git a/sw/source/core/text/txtpaint.hxx b/sw/source/core/text/txtpaint.hxx
index 68149c9bc5a8..0c8e0466b906 100644
--- a/sw/source/core/text/txtpaint.hxx
+++ b/sw/source/core/text/txtpaint.hxx
@@ -31,7 +31,9 @@ class SwSaveClip final
VclPtr<OutputDevice> pOut;
void ChgClip_( const SwRect &rRect, const SwTextFrame* pFrame,
- bool bEnlargeRect );
+ bool bEnlargeRect,
+ sal_Int32 nEnlargeTop,
+ sal_Int32 nEnlargeBottom );
public:
explicit SwSaveClip(OutputDevice* pOutDev)
: bOn(pOutDev && pOutDev->IsClipRegion())
@@ -42,8 +44,11 @@ public:
~SwSaveClip();
void ChgClip( const SwRect &rRect, const SwTextFrame* pFrame = nullptr,
- bool bEnlargeRect = false)
- { if( pOut ) ChgClip_( rRect, pFrame, bEnlargeRect ); }
+ bool bEnlargeRect = false,
+ sal_Int32 nEnlargeTop = 0,
+ sal_Int32 nEnlargeBottom = 0)
+ { if( pOut ) ChgClip_( rRect, pFrame,
+ bEnlargeRect, nEnlargeTop, nEnlargeBottom ); }
bool IsOn() const { return bOn; }
bool IsChg() const { return bChg; }
};
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