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dwrite: Add a separate function to copy text format data.

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Nikolay Sivov 2012-11-26 11:01:58 -05:00 committed by Alexandre Julliard
parent 22f1970834
commit cfaf8be906
1 changed files with 45 additions and 16 deletions
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61
dlls/dwrite/layout.c
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@ -62,6 +62,8 @@ struct dwrite_textformat {
struct dwrite_textformat_data format;
};
static const IDWriteTextFormatVtbl dwritetextformatvtbl;
static void release_format_data(struct dwrite_textformat_data *data)
{
if (data->collection) IDWriteFontCollection_Release(data->collection);
@ -79,6 +81,11 @@ static inline struct dwrite_textformat *impl_from_IDWriteTextFormat(IDWriteTextF
return CONTAINING_RECORD(iface, struct dwrite_textformat, IDWriteTextFormat_iface);
}
static inline struct dwrite_textformat *unsafe_impl_from_IDWriteTextFormat(IDWriteTextFormat *iface)
{
return iface->lpVtbl == &dwritetextformatvtbl ? impl_from_IDWriteTextFormat(iface) : NULL;
}
static HRESULT WINAPI dwritetextlayout_QueryInterface(IDWriteTextLayout *iface, REFIID riid, void **obj)
{
struct dwrite_textlayout *This = impl_from_IDWriteTextLayout(iface);
@ -672,10 +679,46 @@ static const IDWriteTextLayoutVtbl dwritetextlayoutvtbl = {
dwritetextlayout_HitTestTextRange
};
static void layout_format_from_textformat(struct dwrite_textlayout *layout, IDWriteTextFormat *format)
{
struct dwrite_textformat *f;
memset(&layout->format, 0, sizeof(layout->format));
if ((f = unsafe_impl_from_IDWriteTextFormat(format)))
{
layout->format = f->format;
layout->format.locale = heap_strdupW(f->format.locale);
layout->format.family_name = heap_strdupW(f->format.family_name);
}
else
{
UINT32 locale_len, family_len;
layout->format.weight = IDWriteTextFormat_GetFontWeight(format);
layout->format.style = IDWriteTextFormat_GetFontStyle(format);
layout->format.stretch = IDWriteTextFormat_GetFontStretch(format);
layout->format.size = IDWriteTextFormat_GetFontSize(format);
/* locale name and length */
locale_len = IDWriteTextFormat_GetLocaleNameLength(format);
layout->format.locale = heap_alloc((locale_len+1)*sizeof(WCHAR));
IDWriteTextFormat_GetLocaleName(format, layout->format.locale, locale_len+1);
layout->format.locale_len = locale_len;
/* font family name and length */
family_len = IDWriteTextFormat_GetFontFamilyNameLength(format);
layout->format.family_name = heap_alloc((family_len+1)*sizeof(WCHAR));
IDWriteTextFormat_GetFontFamilyName(format, layout->format.family_name, family_len+1);
layout->format.family_len = family_len;
}
IDWriteTextFormat_GetFontCollection(format, &layout->format.collection);
}
HRESULT create_textlayout(const WCHAR *str, UINT32 len, IDWriteTextFormat *format, IDWriteTextLayout **layout)
{
struct dwrite_textlayout *This;
UINT32 locale_len;
*layout = NULL;
@ -686,21 +729,7 @@ HRESULT create_textlayout(const WCHAR *str, UINT32 len, IDWriteTextFormat *forma
This->ref = 1;
This->str = heap_strdupnW(str, len);
This->len = len;
memset(&This->format, 0, sizeof(This->format));
/* reference is not kept here, instead copy all underlying data */
IDWriteTextFormat_GetFontCollection(format, &This->format.collection);
/* locale name and length */
locale_len = IDWriteTextFormat_GetLocaleNameLength(format);
This->format.locale = heap_alloc((locale_len+1)*sizeof(WCHAR));
IDWriteTextFormat_GetLocaleName(format, This->format.locale, locale_len+1);
This->format.locale_len = locale_len;
This->format.weight = IDWriteTextFormat_GetFontWeight(format);
This->format.style = IDWriteTextFormat_GetFontStyle(format);
This->format.stretch = IDWriteTextFormat_GetFontStretch(format);
This->format.size = IDWriteTextFormat_GetFontSize(format);
layout_format_from_textformat(This, format);
*layout = &This->IDWriteTextLayout_iface;