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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /modules/freetype2/include/freetype/ftsynth.h
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'modules/freetype2/include/freetype/ftsynth.h')
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+/****************************************************************************
+ *
+ * ftsynth.h
+ *
+ * FreeType synthesizing code for emboldening and slanting
+ * (specification).
+ *
+ * Copyright (C) 2000-2023 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /********* *********/
+ /********* WARNING, THIS IS ALPHA CODE! THIS API *********/
+ /********* IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE *********/
+ /********* FREETYPE DEVELOPMENT TEAM *********/
+ /********* *********/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+ /*************************************************************************/
+
+
+ /* Main reason for not lifting the functions in this module to a */
+ /* 'standard' API is that the used parameters for emboldening and */
+ /* slanting are not configurable. Consider the functions as a */
+ /* code resource that should be copied into the application and */
+ /* adapted to the particular needs. */
+
+
+#ifndef FTSYNTH_H_
+#define FTSYNTH_H_
+
+
+#include <freetype/freetype.h>
+
+#ifdef FREETYPE_H
+#error "freetype.h of FreeType 1 has been loaded!"
+#error "Please fix the directory search order for header files"
+#error "so that freetype.h of FreeType 2 is found first."
+#endif
+
+
+FT_BEGIN_HEADER
+
+ /* Embolden a glyph by a 'reasonable' value (which is highly a matter of */
+ /* taste). This function is actually a convenience function, providing */
+ /* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */
+ /* */
+ /* For emboldened outlines the height, width, and advance metrics are */
+ /* increased by the strength of the emboldening -- this even affects */
+ /* mono-width fonts! */
+ /* */
+ /* You can also call @FT_Outline_Get_CBox to get precise values. */
+ FT_EXPORT( void )
+ FT_GlyphSlot_Embolden( FT_GlyphSlot slot );
+
+ /* Slant an outline glyph to the right by about 12 degrees. */
+ FT_EXPORT( void )
+ FT_GlyphSlot_Oblique( FT_GlyphSlot slot );
+
+ /* Slant an outline glyph by a given sine of an angle. You can apply */
+ /* slant along either x- or y-axis by choosing a corresponding non-zero */
+ /* argument. If both slants are non-zero, some affine transformation */
+ /* will result. */
+ FT_EXPORT( void )
+ FT_GlyphSlot_Slant( FT_GlyphSlot slot,
+ FT_Fixed xslant,
+ FT_Fixed yslant );
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* FTSYNTH_H_ */
+
+
+/* END */