Change cairo_font_t to refer to a font scaled to a particular output device resolution.

src/cairoint.h src/cairo_font.c src/cairo_ft_font.c src/cairo_xlib_surface.c src/cairo_pdf_surface.c src/cairo_gstate.c src/cairo.c: Switch many internal methods from handling cairo_unscaled_font_t and cairo_font_scale_t pairs to handling cairo_font_t.
src/cairo-ft-private.h src/cairo_ft_fontc: Add some internal interfaces for use by the FreeType backend.
Clear the gstate's current font when the transform or target surface changes.
src/cairo.h src/cairo_ft_font.c: Rename cairo_ft_font_pattern to cairo_ft_font_get_pattern().
src/cairo.h src/cairo_ft_font.c: Make cairo_ft_font_create() and cairo_ft_font_create_for_ft_face() take a font scale; make the latter take load_flags for FT_Load_Glyph() as well. Change cairo_ft_font_face() to Xft-style cairo_ft_font_lock_face, cairo_ft_font_unlock_face.
Remove the name/slant/weight=>unscaled font cache, it didn't work with the new cairo_font_t setup. If it turns out to be needed, it can be added back in some other form.
src/cairoint.h src/cairo_font.c: Add a 'flags' field to cairo_glyph_cache_key_t, we use it for load flags with freetype backend.
Switch the caching to be from resolved fontconfig pattern => file; keep only a fixed number of FT_Face objects open at once, similar to FreeType.
src/cairo_gstate.c src/cairoint.h: Add public cairo_font_glyph_extents, use it to implement _cairo_gstate_glyph_extents().
Add refcounting for glyph cache elements; there was an bug where elements got ejected from the cache and freed before they could be used.
src/cairoint.h src/cairo_cache.c (_cairo_cache_random_entry()) New function to return a random entry in the cache matching a predicate; reuse the internals for the previous _random_live_entry().
src/cairoint.h src/cairo_cache.c (_cairo_cache_lookup()): Add an optional created_entry return value.
src/cairo_ft_font.c src/cairo_xlib_surface.c: Adapt to _cairo_cache_lookup() change.
Support max_memory == 0 to indicate an unbounded cache.
src/cairoint.h src/cairo_cache.c (_cairo_cache_remove()): Add a function to manually remove entries from the cache.
Update for changes, document cairo_matrix_t, cairo_glyph_t, etc.
src/cairo.h src/cairo-atsui.h src/cairo-ft.h src/cairo-glitz.h src/cairo-pdf.h src/cairo-png.h src/cairo-ps.h src/cairo-quartz.h src/cairo-xcb.h src/cairo-xlib.h: Add CAIRO_BEGIN/END_DECLS for extern "C", use it on all public headers. Move header guards outermost.
Fix encoding.

1 files changed, 7 insertions, 2 deletions

diff --git a/src/cairo-pdf.h b/src/cairo-pdf.h
index 0f624af31..72cfb9bdc 100644
--- a/src/cairo-pdf.h
+++ b/src/cairo-pdf.h
@@ -34,14 +34,17 @@
  *	Carl D. Worth <cworth@isi.edu>
  */
 
-#include <cairo.h>
-
 #ifndef CAIRO_PDF_H
 #define CAIRO_PDF_H
+
+#include <cairo.h>
+
 #ifdef  CAIRO_HAS_PDF_SURFACE
 
 #include <stdio.h>
 
+CAIRO_BEGIN_DECLS
+
 void
 cairo_set_target_pdf (cairo_t	*cr,
 		      FILE	*file,
@@ -58,5 +61,7 @@ cairo_pdf_surface_create (FILE		*file,
 			  double	x_pixels_per_inch,
 			  double	y_pixels_per_inch);
 
+CAIRO_END_DECLS
+
 #endif /* CAIRO_HAS_PDF_SURFACE */
 #endif /* CAIRO_PDF_H */