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Sweden-Number/dlls/dwrite/analyzer.c

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dwrite: Added a stub for IDWriteTextAnalyzer.
2012-10-28 22:58:10 +01:00
/*
* Text analyzer
*
* Copyright 2012 Nikolay Sivov for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define COBJMACROS
#include "dwrite.h"
#include "dwrite_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dwrite);
dwrite: Implement initial script itemization for AnalyzeScript().
2012-10-29 15:10:01 +01:00
enum scriptcode {
Script_Arabic = 0,
dwrite: Support itemization up to codepoint 0x2ff (Latin range).
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Script_C1Controls = 12,
dwrite: Implement initial script itemization for AnalyzeScript().
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Script_Latin = 38,
Script_Latin_Symb = 77,
Script_Unknown = (UINT16)-1
};
struct script_range {
UINT16 script;
DWORD first;
DWORD last;
};
static const struct script_range script_ranges[] = {
/* C0 Controls: U+0000–U+001F */
/* ASCII punctuation and symbols: U+0020–U+002F */
/* ASCII digits: U+0030–U+0039 */
/* ASCII punctuation and symbols: U+003A–U+0040 */
{ Script_Latin_Symb, 0x00, 0x040 },
/* Latin uppercase: U+0041–U+005A */
{ Script_Latin, 0x41, 0x5a },
/* ASCII punctuation and symbols: U+005B–U+0060 */
{ Script_Latin_Symb, 0x5b, 0x060 },
/* Latin lowercase: U+0061–U+007A */
{ Script_Latin, 0x61, 0x7a },
/* ASCII punctuation and symbols, control char DEL: U+007B–U+007F */
{ Script_Latin_Symb, 0x7b, 0x7f },
dwrite: Support itemization up to codepoint 0x2ff (Latin range).
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/* C1 Controls: U+0080–U+009F */
{ Script_C1Controls, 0x80, 0x9f },
/* Latin-1 Supplement: U+00A0–U+00FF */
/* Latin Extended-A: U+0100–U+017F */
/* Latin Extended-B: U+0180–U+024F */
/* IPA Extensions: U+0250–U+02AF */
/* Spacing Modifier Letters: U+02B0–U+02FF */
{ Script_Latin, 0xa0, 0x2ff },
dwrite: Implement initial script itemization for AnalyzeScript().
2012-10-29 15:10:01 +01:00
/* Arabic: U+0600–U+06FF */
{ Script_Arabic, 0x600, 0x6ef },
/* unsuppoted range */
{ Script_Unknown }
};
static UINT16 get_char_script( WCHAR c )
{
DWORD ch = c;
int i;
for (i = 0; i < sizeof(script_ranges)/sizeof(struct script_range); i++)
{
const struct script_range *range = &script_ranges[i];
if (range->script == Script_Unknown || (range->first <= ch && range->last >= ch))
return range->script;
}
return Script_Unknown;
}
static HRESULT analyze_script(const WCHAR *text, UINT32 len, IDWriteTextAnalysisSink *sink)
{
DWRITE_SCRIPT_ANALYSIS sa;
UINT32 pos, i, length;
if (!len) return S_OK;
sa.script = get_char_script(*text);
sa.shapes = DWRITE_SCRIPT_SHAPES_DEFAULT;
pos = 0;
length = 1;
for (i = 1; i < len; i++)
{
UINT16 script = get_char_script(text[i]);
/* Script_Latin_Symb script type is ignored when preceded or followed by another script */
if (sa.script == Script_Latin_Symb) sa.script = script;
if (script == Script_Latin_Symb) script = sa.script;
/* this is a length of a sequence to be reported next */
if (sa.script == script) length++;
if (sa.script != script)
{
HRESULT hr = IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
if (FAILED(hr)) return hr;
pos = i;
length = 1;
sa.script = script;
}
}
/* 1 length case or normal completion call */
return IDWriteTextAnalysisSink_SetScriptAnalysis(sink, pos, length, &sa);
}
dwrite: Added a stub for IDWriteTextAnalyzer.
2012-10-28 22:58:10 +01:00
static HRESULT WINAPI dwritetextanalyzer_QueryInterface(IDWriteTextAnalyzer *iface, REFIID riid, void **obj)
{
TRACE("(%s %p)\n", debugstr_guid(riid), obj);
if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IDWriteTextAnalyzer))
{
*obj = iface;
return S_OK;
}
*obj = NULL;
return E_NOINTERFACE;
}
static ULONG WINAPI dwritetextanalyzer_AddRef(IDWriteTextAnalyzer *iface)
{
return 2;
}
static ULONG WINAPI dwritetextanalyzer_Release(IDWriteTextAnalyzer *iface)
{
return 1;
}
static HRESULT WINAPI dwritetextanalyzer_AnalyzeScript(IDWriteTextAnalyzer *iface,
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
{
dwrite: Implement initial script itemization for AnalyzeScript().
2012-10-29 15:10:01 +01:00
const WCHAR *text;
HRESULT hr;
UINT32 len;
TRACE("(%p %u %u %p)\n", source, position, length, sink);
hr = IDWriteTextAnalysisSource_GetTextAtPosition(source, position, &text, &len);
if (FAILED(hr)) return hr;
return analyze_script(text, len, sink);
dwrite: Added a stub for IDWriteTextAnalyzer.
2012-10-28 22:58:10 +01:00
}
static HRESULT WINAPI dwritetextanalyzer_AnalyzeBidi(IDWriteTextAnalyzer *iface,
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
{
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_AnalyzeNumberSubstitution(IDWriteTextAnalyzer *iface,
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
{
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_AnalyzeLineBreakpoints(IDWriteTextAnalyzer *iface,
IDWriteTextAnalysisSource* source, UINT32 position, UINT32 length, IDWriteTextAnalysisSink* sink)
{
FIXME("(%p %u %u %p): stub\n", source, position, length, sink);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_GetGlyphs(IDWriteTextAnalyzer *iface,
WCHAR const* text, UINT32 length, IDWriteFontFace* font_face, BOOL is_sideways,
BOOL is_rtl, DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale,
IDWriteNumberSubstitution* substitution, DWRITE_TYPOGRAPHIC_FEATURES const** features,
UINT32 const* feature_range_len, UINT32 feature_ranges, UINT32 max_glyph_count,
UINT16* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* text_props, UINT16* glyph_indices,
DWRITE_SHAPING_GLYPH_PROPERTIES* glyph_props, UINT32* actual_glyph_count)
{
FIXME("(%s:%u %p %d %d %p %s %p %p %p %u %u %p %p %p %p %p): stub\n", debugstr_wn(text, length),
length, font_face, is_sideways, is_rtl, analysis, debugstr_w(locale), substitution, features, feature_range_len,
feature_ranges, max_glyph_count, clustermap, text_props, glyph_indices, glyph_props, actual_glyph_count);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_GetGlyphPlacements(IDWriteTextAnalyzer *iface,
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, BOOL is_sideways, BOOL is_rtl,
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
UINT32 const* feature_range_len, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
{
FIXME("(%s %p %p %u %p %p %u %p %f %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, is_sideways,
is_rtl, analysis, debugstr_w(locale), features, feature_range_len, feature_ranges, glyph_advances, glyph_offsets);
return E_NOTIMPL;
}
static HRESULT WINAPI dwritetextanalyzer_GetGdiCompatibleGlyphPlacements(IDWriteTextAnalyzer *iface,
WCHAR const* text, UINT16 const* clustermap, DWRITE_SHAPING_TEXT_PROPERTIES* props,
UINT32 text_len, UINT16 const* glyph_indices, DWRITE_SHAPING_GLYPH_PROPERTIES const* glyph_props,
UINT32 glyph_count, IDWriteFontFace * font_face, FLOAT fontEmSize, FLOAT pixels_per_dip,
DWRITE_MATRIX const* transform, BOOL use_gdi_natural, BOOL is_sideways, BOOL is_rtl,
DWRITE_SCRIPT_ANALYSIS const* analysis, WCHAR const* locale, DWRITE_TYPOGRAPHIC_FEATURES const** features,
UINT32 const* feature_range_lengths, UINT32 feature_ranges, FLOAT* glyph_advances, DWRITE_GLYPH_OFFSET* glyph_offsets)
{
FIXME("(%s %p %p %u %p %p %u %p %f %f %p %d %d %d %p %s %p %p %u %p %p): stub\n", debugstr_w(text),
clustermap, props, text_len, glyph_indices, glyph_props, glyph_count, font_face, fontEmSize, pixels_per_dip,
transform, use_gdi_natural, is_sideways, is_rtl, analysis, debugstr_w(locale), features, feature_range_lengths,
feature_ranges, glyph_advances, glyph_offsets);
return E_NOTIMPL;
}
static const struct IDWriteTextAnalyzerVtbl textanalyzervtbl = {
dwritetextanalyzer_QueryInterface,
dwritetextanalyzer_AddRef,
dwritetextanalyzer_Release,
dwritetextanalyzer_AnalyzeScript,
dwritetextanalyzer_AnalyzeBidi,
dwritetextanalyzer_AnalyzeNumberSubstitution,
dwritetextanalyzer_AnalyzeLineBreakpoints,
dwritetextanalyzer_GetGlyphs,
dwritetextanalyzer_GetGlyphPlacements,
dwritetextanalyzer_GetGdiCompatibleGlyphPlacements
};
static IDWriteTextAnalyzer textanalyzer = { &textanalyzervtbl };
HRESULT get_textanalyzer(IDWriteTextAnalyzer **ret)
{
*ret = &textanalyzer;
return S_OK;
}