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| author | Michael Stahl <mstahl@redhat.com> | 2015-11-25 22:42:16 +0100 |
|---|---|---|
| committer | Michael Stahl <mstahl@redhat.com> | 2015-11-26 12:31:24 +0100 |
| commit | e6e409b684f9b046dcde9f0615018508f769c369 (patch) | |
| tree | 1093d780d01fd23c77c4d5a14ffa7ee2d1c651b3 /vcl | |
| parent | b6e354b26bfe2c0790c5817cba3cc3a6dad910b9 (diff) | |
vcl: OutputDevice::GetTextArray() should always init pDXAry
CppunitTest_writerperfect_writer file libmwaw/pass/Acta_1.0.hqx uses the
font "Courier", and for unknown reasons we can't properly load that
font, because the PhysicalFontFamily::mpFirst for "courier" is null.
This causes OutputDevice::GetTextArray() to fail to create a SalLayout
and return early before initializing the passed pDXAry, which then
generates lots of DrMemory warnings.
Let's hope the callers are happy about an all-0 pDXAry.
Change-Id: I07b29a59660cf5cd060fd77da5d96021f9d8f9f5
Diffstat (limited to 'vcl')
| -rw-r--r-- | vcl/source/outdev/text.cxx | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/vcl/source/outdev/text.cxx b/vcl/source/outdev/text.cxx index 097d21c396e4..8bb77789378f 100644 --- a/vcl/source/outdev/text.cxx +++ b/vcl/source/outdev/text.cxx @@ -1006,7 +1006,7 @@ long OutputDevice::GetTextArray( const OUString& rStr, long* pDXAry, } if( nIndex >= rStr.getLength() ) - return 0; + return 0; // TODO: this looks like a buggy caller? if( nLen < 0 || nIndex + nLen >= rStr.getLength() ) { @@ -1016,7 +1016,19 @@ long OutputDevice::GetTextArray( const OUString& rStr, long* pDXAry, SalLayout *const pSalLayout = ImplLayout(rStr, nIndex, nLen, Point(0,0), 0, nullptr, SalLayoutFlags::NONE, pLayoutCache); if( !pSalLayout ) + { + // The caller expects this to init the elements of pDXAry. + // Adapting all the callers to check that GetTextArray succeeded seems + // too much work. + // Init here to 0 only in the (rare) error case, so that any missing + // element init in the happy case will still be found by tools, + // and hope that is sufficient. + if (pDXAry) + { + memset(pDXAry, 0, nLen * sizeof(*pDXAry)); + } return 0; + } #if VCL_FLOAT_DEVICE_PIXEL std::unique_ptr<DeviceCoordinate[]> pDXPixelArray; if(pDXAry) |