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//+--------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// Abstract:
// DirectX Typography Services public API definitions.
//
//----------------------------------------------------------------------------
#ifndef DWRITE_2_H_INCLUDED
#define DWRITE_2_H_INCLUDED
#if _MSC_VER > 1000
#pragma once
#endif
#include <DWrite_1.h>
interface IDWriteFontFallback;
/// <summary>
/// How to align glyphs to the margin.
/// </summary>
enum DWRITE_OPTICAL_ALIGNMENT
{
/// <summary>
/// Align to the default metrics of the glyph.
/// </summary>
DWRITE_OPTICAL_ALIGNMENT_NONE,
/// <summary>
/// Align glyphs to the margins. Without this, some small whitespace
/// may be present between the text and the margin from the glyph's side
/// bearing values. Note that glyphs may still overhang outside the
/// margin, such as flourishes or italic slants.
/// </summary>
DWRITE_OPTICAL_ALIGNMENT_NO_SIDE_BEARINGS,
};
/// <summary>
/// Whether to enable grid-fitting of glyph outlines (a.k.a. hinting).
/// </summary>
enum DWRITE_GRID_FIT_MODE
{
/// <summary>
/// Choose grid fitting base on the font's gasp table information.
/// </summary>
DWRITE_GRID_FIT_MODE_DEFAULT,
/// <summary>
/// Always disable grid fitting, using the ideal glyph outlines.
/// </summary>
DWRITE_GRID_FIT_MODE_DISABLED,
/// <summary>
/// Enable grid fitting, adjusting glyph outlines for device pixel display.
/// </summary>
DWRITE_GRID_FIT_MODE_ENABLED
};
/// <summary>
/// Overall metrics associated with text after layout.
/// All coordinates are in device independent pixels (DIPs).
/// </summary>
struct DWRITE_TEXT_METRICS1 : DWRITE_TEXT_METRICS
{
/// <summary>
/// The height of the formatted text taking into account the
/// trailing whitespace at the end of each line, which will
/// matter for vertical reading directions.
/// </summary>
FLOAT heightIncludingTrailingWhitespace;
};
/// <summary>
/// The text renderer interface represents a set of application-defined
/// callbacks that perform rendering of text, inline objects, and decorations
/// such as underlines.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("D3E0E934-22A0-427E-AAE4-7D9574B59DB1") IDWriteTextRenderer1 : public IDWriteTextRenderer
{
/// <summary>
/// IDWriteTextLayout::Draw calls this function to instruct the client to
/// render a run of glyphs.
/// </summary>
/// <param name="clientDrawingContext">The context passed to
/// IDWriteTextLayout::Draw.</param>
/// <param name="baselineOriginX">X-coordinate of the baseline.</param>
/// <param name="baselineOriginY">Y-coordinate of the baseline.</param>
/// <param name="orientationAngle">Orientation of the glyph run.</param>
/// <param name="measuringMode">Specifies measuring method for glyphs in
/// the run. Renderer implementations may choose different rendering
/// modes for given measuring methods, but best results are seen when
/// the rendering mode matches the corresponding measuring mode:
/// DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL for DWRITE_MEASURING_MODE_NATURAL
/// DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC for DWRITE_MEASURING_MODE_GDI_CLASSIC
/// DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL for DWRITE_MEASURING_MODE_GDI_NATURAL
/// </param>
/// <param name="glyphRun">The glyph run to draw.</param>
/// <param name="glyphRunDescription">Properties of the characters
/// associated with this run.</param>
/// <param name="clientDrawingEffect">The drawing effect set in
/// IDWriteTextLayout::SetDrawingEffect.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// If a non-identity orientation is passed, the glyph run should be
/// rotated around the given baseline x and y coordinates. The function
/// IDWriteAnalyzer2::GetGlyphOrientationTransform will return the
/// necessary transform for you, which can be combined with any existing
/// world transform on the drawing context.
/// </remarks>
STDMETHOD(DrawGlyphRun)(
_In_opt_ void* clientDrawingContext,
FLOAT baselineOriginX,
FLOAT baselineOriginY,
DWRITE_GLYPH_ORIENTATION_ANGLE orientationAngle,
DWRITE_MEASURING_MODE measuringMode,
_In_ DWRITE_GLYPH_RUN const* glyphRun,
_In_ DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
_In_opt_ IUnknown* clientDrawingEffect
) PURE;
/// <summary>
/// IDWriteTextLayout::Draw calls this function to instruct the client to draw
/// an underline.
/// </summary>
/// <param name="clientDrawingContext">The context passed to
/// IDWriteTextLayout::Draw.</param>
/// <param name="baselineOriginX">X-coordinate of the baseline.</param>
/// <param name="baselineOriginY">Y-coordinate of the baseline.</param>
/// <param name="orientationAngle">Orientation of the underline.</param>
/// <param name="underline">Underline logical information.</param>
/// <param name="clientDrawingEffect">The drawing effect set in
/// IDWriteTextLayout::SetDrawingEffect.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// A single underline can be broken into multiple calls, depending on
/// how the formatting changes attributes. If font sizes/styles change
/// within an underline, the thickness and offset will be averaged
/// weighted according to characters.
///
/// To get the correct top coordinate of the underline rect, add
/// underline::offset to the baseline's Y. Otherwise the underline will
/// be immediately under the text. The x coordinate will always be passed
/// as the left side, regardless of text directionality. This simplifies
/// drawing and reduces the problem of round-off that could potentially
/// cause gaps or a double stamped alpha blend. To avoid alpha overlap,
/// round the end points to the nearest device pixel.
/// </remarks>
STDMETHOD(DrawUnderline)(
_In_opt_ void* clientDrawingContext,
FLOAT baselineOriginX,
FLOAT baselineOriginY,
DWRITE_GLYPH_ORIENTATION_ANGLE orientationAngle,
_In_ DWRITE_UNDERLINE const* underline,
_In_opt_ IUnknown* clientDrawingEffect
) PURE;
/// <summary>
/// IDWriteTextLayout::Draw calls this function to instruct the client to draw
/// a strikethrough.
/// </summary>
/// <param name="clientDrawingContext">The context passed to
/// IDWriteTextLayout::Draw.</param>
/// <param name="baselineOriginX">X-coordinate of the baseline.</param>
/// <param name="baselineOriginY">Y-coordinate of the baseline.</param>
/// <param name="orientationAngle">Orientation of the strikethrough.</param>
/// <param name="strikethrough">Strikethrough logical information.</param>
/// <param name="clientDrawingEffect">The drawing effect set in
/// IDWriteTextLayout::SetDrawingEffect.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// A single strikethrough can be broken into multiple calls, depending on
/// how the formatting changes attributes. Strikethrough is not averaged
/// across font sizes/styles changes.
/// To get the correct top coordinate of the strikethrough rect,
/// add strikethrough::offset to the baseline's Y.
/// Like underlines, the x coordinate will always be passed as the left side,
/// regardless of text directionality.
/// </remarks>
STDMETHOD(DrawStrikethrough)(
_In_opt_ void* clientDrawingContext,
FLOAT baselineOriginX,
FLOAT baselineOriginY,
DWRITE_GLYPH_ORIENTATION_ANGLE orientationAngle,
_In_ DWRITE_STRIKETHROUGH const* strikethrough,
_In_opt_ IUnknown* clientDrawingEffect
) PURE;
/// <summary>
/// IDWriteTextLayout::Draw calls this application callback when it needs to
/// draw an inline object.
/// </summary>
/// <param name="clientDrawingContext">The context passed to
/// IDWriteTextLayout::Draw.</param>
/// <param name="originX">X-coordinate at the top-left corner of the
/// inline object.</param>
/// <param name="originY">Y-coordinate at the top-left corner of the
/// inline object.</param>
/// <param name="orientationAngle">Orientation of the inline object.</param>
/// <param name="inlineObject">The object set using IDWriteTextLayout::SetInlineObject.</param>
/// <param name="isSideways">The object should be drawn on its side.</param>
/// <param name="isRightToLeft">The object is in an right-to-left context
/// and should be drawn flipped.</param>
/// <param name="clientDrawingEffect">The drawing effect set in
/// IDWriteTextLayout::SetDrawingEffect.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// The right-to-left flag is a hint to draw the appropriate visual for
/// that reading direction. For example, it would look strange to draw an
/// arrow pointing to the right to indicate a submenu. The sideways flag
/// similarly hints that the object is drawn in a different orientation.
/// If a non-identity orientation is passed, the top left of the inline
/// object should be rotated around the given x and y coordinates.
/// IDWriteAnalyzer2::GetGlyphOrientationTransform returns the necessary
/// transform for this.
/// </remarks>
STDMETHOD(DrawInlineObject)(
_In_opt_ void* clientDrawingContext,
FLOAT originX,
FLOAT originY,
DWRITE_GLYPH_ORIENTATION_ANGLE orientationAngle,
_In_ IDWriteInlineObject* inlineObject,
BOOL isSideways,
BOOL isRightToLeft,
_In_opt_ IUnknown* clientDrawingEffect
) PURE;
};
/// <summary>
/// The format of text used for text layout.
/// </summary>
/// <remarks>
/// This object may not be thread-safe and it may carry the state of text format change.
/// </remarks>
interface DWRITE_DECLARE_INTERFACE("5F174B49-0D8B-4CFB-8BCA-F1CCE9D06C67") IDWriteTextFormat1 : public IDWriteTextFormat
{
/// <summary>
/// Set the preferred orientation of glyphs when using a vertical reading direction.
/// </summary>
/// <param name="glyphOrientation">Preferred glyph orientation.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetVerticalGlyphOrientation)(
DWRITE_VERTICAL_GLYPH_ORIENTATION glyphOrientation
) PURE;
/// <summary>
/// Get the preferred orientation of glyphs when using a vertical reading
/// direction.
/// </summary>
STDMETHOD_(DWRITE_VERTICAL_GLYPH_ORIENTATION, GetVerticalGlyphOrientation)() PURE;
/// <summary>
/// Set whether or not the last word on the last line is wrapped.
/// </summary>
/// <param name="isLastLineWrappingEnabled">Line wrapping option.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetLastLineWrapping)(
BOOL isLastLineWrappingEnabled
) PURE;
/// <summary>
/// Get whether or not the last word on the last line is wrapped.
/// </summary>
STDMETHOD_(BOOL, GetLastLineWrapping)() PURE;
/// <summary>
/// Set how the glyphs align to the edges the margin. Default behavior is
/// to align glyphs using their default glyphs metrics which include side
/// bearings.
/// </summary>
/// <param name="opticalAlignment">Optical alignment option.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetOpticalAlignment)(
DWRITE_OPTICAL_ALIGNMENT opticalAlignment
) PURE;
/// <summary>
/// Get how the glyphs align to the edges the margin.
/// </summary>
STDMETHOD_(DWRITE_OPTICAL_ALIGNMENT, GetOpticalAlignment)() PURE;
/// <summary>
/// Apply a custom font fallback onto layout. If none is specified,
/// layout uses the system fallback list.
/// </summary>
/// <param name="fontFallback">Custom font fallback created from
/// IDWriteFontFallbackBuilder::CreateFontFallback or from
/// IDWriteFactory2::GetSystemFontFallback.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetFontFallback)(
IDWriteFontFallback* fontFallback
) PURE;
/// <summary>
/// Get the current font fallback object.
/// </summary>
STDMETHOD(GetFontFallback)(
__out IDWriteFontFallback** fontFallback
) PURE;
};
/// <summary>
/// The text layout interface represents a block of text after it has
/// been fully analyzed and formatted.
///
/// All coordinates are in device independent pixels (DIPs).
/// </summary>
interface DWRITE_DECLARE_INTERFACE("1093C18F-8D5E-43F0-B064-0917311B525E") IDWriteTextLayout2 : public IDWriteTextLayout1
{
/// <summary>
/// GetMetrics retrieves overall metrics for the formatted string.
/// </summary>
/// <param name="textMetrics">The returned metrics.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// Drawing effects like underline and strikethrough do not contribute
/// to the text size, which is essentially the sum of advance widths and
/// line heights. Additionally, visible swashes and other graphic
/// adornments may extend outside the returned width and height.
/// </remarks>
STDMETHOD(GetMetrics)(
_Out_ DWRITE_TEXT_METRICS1* textMetrics
) PURE;
using IDWriteTextLayout::GetMetrics;
/// <summary>
/// Set the preferred orientation of glyphs when using a vertical reading direction.
/// </summary>
/// <param name="glyphOrientation">Preferred glyph orientation.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetVerticalGlyphOrientation)(
DWRITE_VERTICAL_GLYPH_ORIENTATION glyphOrientation
) PURE;
/// <summary>
/// Get the preferred orientation of glyphs when using a vertical reading
/// direction.
/// </summary>
STDMETHOD_(DWRITE_VERTICAL_GLYPH_ORIENTATION, GetVerticalGlyphOrientation)() PURE;
/// <summary>
/// Set whether or not the last word on the last line is wrapped.
/// </summary>
/// <param name="isLastLineWrappingEnabled">Line wrapping option.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetLastLineWrapping)(
BOOL isLastLineWrappingEnabled
) PURE;
/// <summary>
/// Get whether or not the last word on the last line is wrapped.
/// </summary>
STDMETHOD_(BOOL, GetLastLineWrapping)() PURE;
/// <summary>
/// Set how the glyphs align to the edges the margin. Default behavior is
/// to align glyphs using their default glyphs metrics which include side
/// bearings.
/// </summary>
/// <param name="opticalAlignment">Optical alignment option.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetOpticalAlignment)(
DWRITE_OPTICAL_ALIGNMENT opticalAlignment
) PURE;
/// <summary>
/// Get how the glyphs align to the edges the margin.
/// </summary>
STDMETHOD_(DWRITE_OPTICAL_ALIGNMENT, GetOpticalAlignment)() PURE;
/// <summary>
/// Apply a custom font fallback onto layout. If none is specified,
/// layout uses the system fallback list.
/// </summary>
/// <param name="fontFallback">Custom font fallback created from
/// IDWriteFontFallbackBuilder::CreateFontFallback or
/// IDWriteFactory2::GetSystemFontFallback.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(SetFontFallback)(
IDWriteFontFallback* fontFallback
) PURE;
/// <summary>
/// Get the current font fallback object.
/// </summary>
STDMETHOD(GetFontFallback)(
__out IDWriteFontFallback** fontFallback
) PURE;
};
/// <summary>
/// The text analyzer interface represents a set of application-defined
/// callbacks that perform rendering of text, inline objects, and decorations
/// such as underlines.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("553A9FF3-5693-4DF7-B52B-74806F7F2EB9") IDWriteTextAnalyzer2 : public IDWriteTextAnalyzer1
{
/// <summary>
/// Returns 2x3 transform matrix for the respective angle to draw the
/// glyph run or other object.
/// </summary>
/// <param name="glyphOrientationAngle">The angle reported to one of the application callbacks,
/// including IDWriteTextAnalysisSink1::SetGlyphOrientation and IDWriteTextRenderer1::Draw*.</param>
/// <param name="isSideways">Whether the run's glyphs are sideways or not.</param>
/// <param name="originX">X origin of the element, be it a glyph run or underline or other.</param>
/// <param name="originY">Y origin of the element, be it a glyph run or underline or other.</param>
/// <param name="transform">Returned transform.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
/// <remarks>
/// This rotates around the given origin x and y, returning a translation component
/// such that the glyph run, text decoration, or inline object is drawn with the
/// right orientation at the expected coordinate.
/// </remarks>
STDMETHOD(GetGlyphOrientationTransform)(
DWRITE_GLYPH_ORIENTATION_ANGLE glyphOrientationAngle,
BOOL isSideways,
FLOAT originX,
FLOAT originY,
_Out_ DWRITE_MATRIX* transform
) PURE;
/// <summary>
/// Returns a list of typographic feature tags for the given script and language.
/// </summary>
/// <param name="fontFace">The font face to get features from.</param>
/// <param name="scriptAnalysis">Script analysis result from AnalyzeScript.</param>
/// <param name="localeName">The locale to use when selecting the feature,
/// such en-us or ja-jp.</param>
/// <param name="maxTagCount">Maximum tag count.</param>
/// <param name="actualTagCount">Actual tag count. If greater than
/// maxTagCount, E_NOT_SUFFICIENT_BUFFER is returned, and the call
/// should be retried with a larger buffer.</param>
/// <param name="tags">Feature tag list.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(GetTypographicFeatures)(
IDWriteFontFace* fontFace,
DWRITE_SCRIPT_ANALYSIS scriptAnalysis,
_In_opt_z_ WCHAR const* localeName,
UINT32 maxTagCount,
_Out_ UINT32* actualTagCount,
_Out_writes_(maxTagCount) DWRITE_FONT_FEATURE_TAG* tags
) PURE;
/// <summary>
/// Returns an array of which glyphs are affected by a given feature.
/// </summary>
/// <param name="fontFace">The font face to read glyph information from.</param>
/// <param name="scriptAnalysis">Script analysis result from AnalyzeScript.</param>
/// <param name="localeName">The locale to use when selecting the feature,
/// such en-us or ja-jp.</param>
/// <param name="featureTag">OpenType feature name to use, which may be one
/// of the DWRITE_FONT_FEATURE_TAG values or a custom feature using
/// DWRITE_MAKE_OPENTYPE_TAG.</param>
/// <param name="glyphCount">Number of glyph indices to check.</param>
/// <param name="glyphIndices">Glyph indices to check for feature application.</param>
/// <param name="featureApplies">Output of which glyphs are affected by the
/// feature, where for each glyph affected, the respective array index
/// will be 1. The result is returned per-glyph without regard to
/// neighboring context of adjacent glyphs.</param>
/// </remarks>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(CheckTypographicFeature)(
IDWriteFontFace* fontFace,
DWRITE_SCRIPT_ANALYSIS scriptAnalysis,
_In_opt_z_ WCHAR const* localeName,
DWRITE_FONT_FEATURE_TAG featureTag,
UINT32 glyphCount,
_In_reads_(glyphCount) UINT16 const* glyphIndices,
_Out_writes_(glyphCount) UINT8* featureApplies
) PURE;
};
/// <summary>
/// A font fallback definition used for mapping characters to fonts capable of
/// supporting them.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("EFA008F9-F7A1-48BF-B05C-F224713CC0FF") IDWriteFontFallback : public IUnknown
{
/// <summary>
/// Determines an appropriate font to use to render the range of text.
/// </summary>
/// <param name="source">The text source implementation holds the text and
/// locale.</param>
/// <param name="textLength">Length of the text to analyze.</param>
/// <param name="baseFontCollection">Default font collection to use.</param>
/// <param name="baseFont">Base font to check (optional).</param>
/// <param name="baseFamilyName">Family name of the base font. If you pass
/// null, no matching will be done against the family.</param>
/// <param name="baseWeight">Desired weight.</param>
/// <param name="baseStyle">Desired style.</param>
/// <param name="baseStretch">Desired stretch.</param>
/// <param name="mappedLength">Length of text mapped to the mapped font.
/// This will always be less or equal to the input text length and
/// greater than zero (if the text length is non-zero) so that the
/// caller advances at least one character each call.</param>
/// <param name="mappedFont">The font that should be used to render the
/// first mappedLength characters of the text. If it returns NULL,
/// then no known font can render the text, and mappedLength is the
/// number of unsupported characters to skip.</param>
/// <param name="scale">Scale factor to multiply the em size of the
/// returned font by.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(MapCharacters)(
IDWriteTextAnalysisSource* analysisSource,
UINT32 textPosition,
UINT32 textLength,
_In_opt_ IDWriteFontCollection* baseFontCollection,
_In_opt_z_ wchar_t const* baseFamilyName,
DWRITE_FONT_WEIGHT baseWeight,
DWRITE_FONT_STYLE baseStyle,
DWRITE_FONT_STRETCH baseStretch,
_Deref_out_range_(0, textLength) UINT32* mappedLength,
_COM_Outptr_ IDWriteFont** mappedFont,
_Out_ FLOAT* scale
) PURE;
};
/// <summary>
/// Builder used to create a font fallback definition by appending a series of
/// fallback mappings, followed by a creation call.
/// </summary>
/// <remarks>
/// This object may not be thread-safe.
/// </remarks>
interface DWRITE_DECLARE_INTERFACE("FD882D06-8ABA-4FB8-B849-8BE8B73E14DE") IDWriteFontFallbackBuilder : public IUnknown
{
/// <summary>
/// Appends a single mapping to the list. Call this once for each additional mapping.
/// </summary>
/// <param name="ranges">Unicode ranges that apply to this mapping.</param>
/// <param name="rangesCount">Number of Unicode ranges.</param>
/// <param name="localeName">Locale of the context (e.g. document locale).</param>
/// <param name="baseFamilyName">Base family name to match against, if applicable.</param>
/// <param name="fontCollection">Explicit font collection for this mapping (optional).</param>
/// <param name="targetFamilyNames">List of target family name strings.</param>
/// <param name="targetFamilyNamesCount">Number of target family names.</param>
/// <param name="scale">Scale factor to multiply the result target font by.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(AddMapping)(
_In_reads_(rangesCount) DWRITE_UNICODE_RANGE const* ranges,
UINT32 rangesCount,
_In_reads_(targetFamilyNamesCount) WCHAR const** targetFamilyNames,
UINT32 targetFamilyNamesCount,
_In_opt_ IDWriteFontCollection* fontCollection = NULL,
_In_opt_z_ WCHAR const* localeName = NULL,
_In_opt_z_ WCHAR const* baseFamilyName = NULL,
FLOAT scale = 1.0f
) PURE;
/// <summary>
/// Appends all the mappings from an existing font fallback object.
/// </summary>
/// <param name="fontFallback">Font fallback to read mappings from.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(AddMappings)(
IDWriteFontFallback* fontFallback
) PURE;
/// <summary>
/// Creates the finalized fallback object from the mappings added.
/// </summary>
/// <param name="fontFallback">Created fallback list.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(CreateFontFallback)(
_COM_Outptr_ IDWriteFontFallback** fontFallback
) PURE;
};
/// <summary>
/// DWRITE_COLOR_F
/// </summary>
#ifndef D3DCOLORVALUE_DEFINED
typedef struct _D3DCOLORVALUE {
union {
FLOAT r;
FLOAT dvR;
};
union {
FLOAT g;
FLOAT dvG;
};
union {
FLOAT b;
FLOAT dvB;
};
union {
FLOAT a;
FLOAT dvA;
};
} D3DCOLORVALUE;
#define D3DCOLORVALUE_DEFINED
#endif D3DCOLORVALUE_DEFINED
typedef D3DCOLORVALUE DWRITE_COLOR_F;
/// <summary>
/// The IDWriteFont interface represents a physical font in a font collection.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("29748ed6-8c9c-4a6a-be0b-d912e8538944") IDWriteFont2 : public IDWriteFont1
{
/// <summary>
/// Returns TRUE if the font contains color information (COLR and CPAL tables),
/// or FALSE if not.
/// </summary>
STDMETHOD_(BOOL, IsColorFont)() PURE;
};
/// <summary>
/// The interface that represents an absolute reference to a font face.
/// It contains font face type, appropriate file references and face identification data.
/// Various font data such as metrics, names and glyph outlines is obtained from IDWriteFontFace.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("d8b768ff-64bc-4e66-982b-ec8e87f693f7") IDWriteFontFace2 : public IDWriteFontFace1
{
/// <summary>
/// Returns TRUE if the font contains color information (COLR and CPAL tables),
/// or FALSE if not.
/// </summary>
STDMETHOD_(BOOL, IsColorFont)() PURE;
/// <summary>
/// Returns the number of color palettes defined by the font. The return
/// value is zero if the font has no color information. Color fonts must
/// have at least one palette, with palette index zero being the default.
/// </summary>
STDMETHOD_(UINT32, GetColorPaletteCount)() PURE;
/// <summary>
/// Returns the number of entries in each color palette. All color palettes
/// in a font have the same number of palette entries. The return value is
/// zero if the font has no color information.
/// </summary>
STDMETHOD_(UINT32, GetPaletteEntryCount)() PURE;
/// <summary>
/// Reads color values from the font's color palette.
/// </summary>
/// <param name="colorPaletteIndex">Zero-based index of the color palette. If the
/// font does not have a palette with the specified index, the method returns
/// DWRITE_E_NOCOLOR.<param>
/// <param name="firstEntryIndex">Zero-based index of the first palette entry
/// to read.</param>
/// <param name="entryCount">Number of palette entries to read.</param>
/// <param name="paletteEntries">Array that receives the color values.<param>
/// <returns>
/// Standard HRESULT error code.
/// The return value is E_INVALIDARG if firstEntryIndex + entryCount is greater
/// than the actual number of palette entries as returned by GetPaletteEntryCount.
/// The return value is DWRITE_E_NOCOLOR if the font does not have a palette
/// with the specified palette index.
/// </returns>
STDMETHOD(GetPaletteEntries)(
UINT32 colorPaletteIndex,
UINT32 firstEntryIndex,
UINT32 entryCount,
_Out_writes_(entryCount) DWRITE_COLOR_F* paletteEntries
) PURE;
/// <summary>
/// Determines the recommended text rendering and grid-fit mode to be used based on the
/// font, size, world transform, and measuring mode.
/// </summary>
/// <param name="fontEmSize">Logical font size in DIPs.</param>
/// <param name="dpiX">Number of pixels per logical inch in the horizontal direction.</param>
/// <param name="dpiY">Number of pixels per logical inch in the vertical direction.</param>
/// <param name="transform">Specifies the world transform.</param>
/// <param name="outlineThreshold">Specifies the quality of the graphics system's outline rendering,
/// affects the size threshold above which outline rendering is used.</param>
/// <param name="measuringMode">Specifies the method used to measure during text layout. For proper
/// glyph spacing, the function returns a rendering mode that is compatible with the specified
/// measuring mode.</param>
/// <param name="renderingParams">Rendering parameters object. This parameter is necessary in case the rendering parameters
/// object overrides the rendering mode.</param>
/// <param name="renderingMode">Receives the recommended rendering mode.</param>
/// <param name="gridFitMode">Receives the recommended grid-fit mode.</param>
/// <remarks>
/// This method should be used to determine the actual rendering mode in cases where the rendering
/// mode of the rendering params object is DWRITE_RENDERING_MODE_DEFAULT, and the actual grid-fit
/// mode when the rendering params object is DWRITE_GRID_FIT_MODE_DEFAULT.
/// </remarks>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(GetRecommendedRenderingMode)(
FLOAT fontEmSize,
FLOAT dpiX,
FLOAT dpiY,
_In_opt_ DWRITE_MATRIX const* transform,
BOOL isSideways,
DWRITE_OUTLINE_THRESHOLD outlineThreshold,
DWRITE_MEASURING_MODE measuringMode,
_In_opt_ IDWriteRenderingParams* renderingParams,
_Out_ DWRITE_RENDERING_MODE* renderingMode,
_Out_ DWRITE_GRID_FIT_MODE* gridFitMode
) PURE;
};
/// <summary>
/// Represents a color glyph run. The IDWriteFactory2::TranslateColorGlyphRun
/// method returns an ordered collection of color glyph runs, which can be
/// layered on top of each other to produce a color representation of the
/// given base glyph run.
/// </summary>
struct DWRITE_COLOR_GLYPH_RUN
{
/// <summary>
/// Glyph run to render.
/// </summary>
DWRITE_GLYPH_RUN glyphRun;
/// <summary>
/// Optional glyph run description.
/// </summary>
_Maybenull_ DWRITE_GLYPH_RUN_DESCRIPTION* glyphRunDescription;
/// <summary>
/// Location at which to draw this glyph run.
/// </summary>
FLOAT baselineOriginX;
FLOAT baselineOriginY;
/// <summary>
/// Color to use for this layer, if any. This is the same color that
/// IDWriteFontFace2::GetPaletteEntries would return for the current
/// palette index if the paletteIndex member is less than 0xFFFF. If
/// the paletteIndex member is 0xFFFF then there is no associated
/// palette entry, this member is set to { 0, 0, 0, 0 }, and the client
/// should use the current foreground brush.
/// </summary>
DWRITE_COLOR_F runColor;
/// <summary>
/// Zero-based index of this layer's color entry in the current color
/// palette, or 0xFFFF if this layer is to be rendered using
/// the current foreground brush.
/// </summary>
UINT16 paletteIndex;
};
/// <summary>
/// Enumerator for an ordered collection of color glyph runs.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("d31fbe17-f157-41a2-8d24-cb779e0560e8") IDWriteColorGlyphRunEnumerator : public IUnknown
{
/// <summary>
/// Advances to the first or next color run. The runs are enumerated
/// in order from back to front.
/// </summary>
/// <param name="hasRun">Receives TRUE if there is a current run or
/// FALSE if the end of the sequence has been reached.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(MoveNext)(
_Out_ BOOL* hasRun
) PURE;
/// <summary>
/// Gets the current color glyph run.
/// </summary>
/// <param name="colorGlyphRun">Receives a pointer to the color
/// glyph run. The pointer remains valid until the next call to
/// MoveNext or until the interface is released.</param>
/// <returns>
/// Standard HRESULT error code. An error is returned if there is
/// no current glyph run, i.e., if MoveNext has not yet been called
/// or if the end of the sequence has been reached.
/// </returns>
STDMETHOD(GetCurrentRun)(
_Outptr_ DWRITE_COLOR_GLYPH_RUN const** colorGlyphRun
) PURE;
};
/// <summary>
/// The interface that represents text rendering settings for glyph rasterization and filtering.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("F9D711C3-9777-40AE-87E8-3E5AF9BF0948") IDWriteRenderingParams2 : public IDWriteRenderingParams1
{
/// <summary>
/// Gets the grid fitting mode.
/// </summary>
STDMETHOD_(DWRITE_GRID_FIT_MODE, GetGridFitMode)() PURE;
};
/// <summary>
/// The root factory interface for all DWrite objects.
/// </summary>
interface DWRITE_DECLARE_INTERFACE("0439fc60-ca44-4994-8dee-3a9af7b732ec") IDWriteFactory2 : public IDWriteFactory1
{
/// <summary>
/// Get the system-appropriate font fallback mapping list.
/// </summary>
/// <param name="fontFallback">The system fallback list.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(GetSystemFontFallback)(
_COM_Outptr_ IDWriteFontFallback** fontFallback
) PURE;
/// <summary>
/// Create a custom font fallback builder.
/// </summary>
/// <param name="fontFallbackBuilder">Empty font fallback builder.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(CreateFontFallbackBuilder)(
_COM_Outptr_ IDWriteFontFallbackBuilder** fontFallbackBuilder
) PURE;
/// <summary>
/// Translates a glyph run to a sequence of color glyph runs, which can be
/// rendered to produce a color representation of the original "base" run.
/// </summary>
/// <param name="baselineOriginX">Horizontal origin of the base glyph run in
/// pre-transform coordinates.</param>
/// <param name="baselineOriginY">Vertical origin of the base glyph run in
/// pre-transform coordinates.</param>
/// <param name="glyphRun">Pointer to the original "base" glyph run.</param>
/// <param name="glyphRunDescription">Optional glyph run description.</param>
/// <param name="measuringMode">Measuring mode, needed to compute the origins
/// of each glyph.</param>
/// <param name="worldToDeviceTransform">Matrix converting from the client's
/// coordinate space to device coordinates (pixels), i.e., the world transform
/// multiplied by any DPI scaling.</param>
/// <param name="colorPaletteIndex">Zero-based index of the color palette to use.
/// Valid indices are less than the number of palettes in the font, as returned
/// by IDWriteFontFace2::GetColorPaletteCount.</param>
/// <param name="colorLayers">If the function succeeds, receives a pointer
/// to an enumerator object that can be used to obtain the color glyph runs.
/// If the base run has no color glyphs, then the output pointer is NULL
/// and the method returns DWRITE_E_NOCOLOR.</param>
/// <returns>
/// Returns DWRITE_E_NOCOLOR if the font has no color information, the base
/// glyph run does not contain any color glyphs, or the specified color palette
/// index is out of range. In this case, the client should render the base glyph
/// run. Otherwise, returns a standard HRESULT error code.
/// </returns>
STDMETHOD(TranslateColorGlyphRun)(
FLOAT baselineOriginX,
FLOAT baselineOriginY,
_In_ DWRITE_GLYPH_RUN const* glyphRun,
_In_opt_ DWRITE_GLYPH_RUN_DESCRIPTION const* glyphRunDescription,
DWRITE_MEASURING_MODE measuringMode,
_In_opt_ DWRITE_MATRIX const* worldToDeviceTransform,
UINT32 colorPaletteIndex,
_COM_Outptr_ IDWriteColorGlyphRunEnumerator** colorLayers
) PURE;
/// <summary>
/// Creates a rendering parameters object with the specified properties.
/// </summary>
/// <param name="gamma">The gamma value used for gamma correction, which must be greater than zero and cannot exceed 256.</param>
/// <param name="enhancedContrast">The amount of contrast enhancement, zero or greater.</param>
/// <param name="clearTypeLevel">The degree of ClearType level, from 0.0f (no ClearType) to 1.0f (full ClearType).</param>
/// <param name="pixelGeometry">The geometry of a device pixel.</param>
/// <param name="renderingMode">Method of rendering glyphs. In most cases, this should be DWRITE_RENDERING_MODE_DEFAULT to automatically use an appropriate mode.</param>
/// <param name="gridFitMode">How to grid fit glyph outlines. In most cases, this should be DWRITE_GRID_FIT_DEFAULT to automatically choose an appropriate mode.</param>
/// <param name="renderingParams">Holds the newly created rendering parameters object, or NULL in case of failure.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(CreateCustomRenderingParams)(
FLOAT gamma,
FLOAT enhancedContrast,
FLOAT grayscaleEnhancedContrast,
FLOAT clearTypeLevel,
DWRITE_PIXEL_GEOMETRY pixelGeometry,
DWRITE_RENDERING_MODE renderingMode,
DWRITE_GRID_FIT_MODE gridFitMode,
_COM_Outptr_ IDWriteRenderingParams2** renderingParams
) PURE;
using IDWriteFactory::CreateCustomRenderingParams;
using IDWriteFactory1::CreateCustomRenderingParams;
/// <summary>
/// Creates a glyph run analysis object, which encapsulates information
/// used to render a glyph run.
/// </summary>
/// <param name="glyphRun">Structure specifying the properties of the glyph run.</param>
/// <param name="transform">Optional transform applied to the glyphs and their positions. This transform is applied after the
/// scaling specified by the emSize and pixelsPerDip.</param>
/// <param name="renderingMode">Specifies the rendering mode, which must be one of the raster rendering modes (i.e., not default
/// and not outline).</param>
/// <param name="measuringMode">Specifies the method to measure glyphs.</param>
/// <param name="gridFitMode">How to grid-fit glyph outlines. This must be non-default.</param>
/// <param name="baselineOriginX">Horizontal position of the baseline origin, in DIPs.</param>
/// <param name="baselineOriginY">Vertical position of the baseline origin, in DIPs.</param>
/// <param name="glyphRunAnalysis">Receives a pointer to the newly created object.</param>
/// <returns>
/// Standard HRESULT error code.
/// </returns>
STDMETHOD(CreateGlyphRunAnalysis)(
_In_ DWRITE_GLYPH_RUN const* glyphRun,
_In_opt_ DWRITE_MATRIX const* transform,
DWRITE_RENDERING_MODE renderingMode,
DWRITE_MEASURING_MODE measuringMode,
DWRITE_GRID_FIT_MODE gridFitMode,
DWRITE_TEXT_ANTIALIAS_MODE antialiasMode,
FLOAT baselineOriginX,
FLOAT baselineOriginY,
_COM_Outptr_ IDWriteGlyphRunAnalysis** glyphRunAnalysis
) PURE;
using IDWriteFactory::CreateGlyphRunAnalysis;
};
#endif /* DWRITE_2_H_INCLUDED */
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