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dwrite: Store nominal breakpoint data in layout.

This commit is contained in:
Nikolay Sivov 2014-12-25 14:03:19 +03:00 committed by Alexandre Julliard
parent ac4c85ea87
commit 83aafaaae8
1 changed files with 29 additions and 1 deletions
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30
dlls/dwrite/layout.c
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@ -120,6 +120,8 @@ struct dwrite_textlayout {
struct list ranges;
struct list runs;
BOOL recompute;
DWRITE_LINE_BREAKPOINT *breakpoints;
};
struct dwrite_textformat {
@ -276,6 +278,24 @@ static HRESULT layout_compute(struct dwrite_textlayout *layout)
}
}
/* nominal breakpoints are evaluated only once, because string never changes */
if (!layout->breakpoints) {
IDWriteTextAnalyzer *analyzer;
HRESULT hr;
layout->breakpoints = heap_alloc(sizeof(DWRITE_LINE_BREAKPOINT)*layout->len);
if (!layout->breakpoints)
return E_OUTOFMEMORY;
hr = get_textanalyzer(&analyzer);
if (FAILED(hr))
return hr;
hr = IDWriteTextAnalyzer_AnalyzeLineBreakpoints(analyzer, &layout->IDWriteTextAnalysisSource_iface,
0, layout->len, &layout->IDWriteTextAnalysisSink_iface);
IDWriteTextAnalyzer_Release(analyzer);
}
layout->recompute = FALSE;
return hr;
}
@ -675,6 +695,7 @@ static ULONG WINAPI dwritetextlayout_Release(IDWriteTextLayout2 *iface)
free_layout_ranges_list(This);
free_layout_runs(This);
release_format_data(&This->format);
heap_free(This->breakpoints);
heap_free(This->str);
heap_free(This);
}
@ -1575,7 +1596,13 @@ static HRESULT WINAPI dwritetextlayout_sink_SetScriptAnalysis(IDWriteTextAnalysi
static HRESULT WINAPI dwritetextlayout_sink_SetLineBreakpoints(IDWriteTextAnalysisSink *iface,
UINT32 position, UINT32 length, DWRITE_LINE_BREAKPOINT const* breakpoints)
{
return E_NOTIMPL;
struct dwrite_textlayout *layout = impl_from_IDWriteTextAnalysisSink(iface);
if (position + length > layout->len)
return E_FAIL;
memcpy(&layout->breakpoints[position], breakpoints, length*sizeof(DWRITE_LINE_BREAKPOINT));
return S_OK;
}
static HRESULT WINAPI dwritetextlayout_sink_SetBidiLevel(IDWriteTextAnalysisSink *iface, UINT32 position,
@ -1806,6 +1833,7 @@ HRESULT create_textlayout(const WCHAR *str, UINT32 len, IDWriteTextFormat *forma
This->maxwidth = maxwidth;
This->maxheight = maxheight;
This->recompute = TRUE;
This->breakpoints = NULL;
layout_format_from_textformat(This, format);
list_init(&This->runs);