Patch from: Robert O'Callahan <roc@ocallahans.org>
Add cairo_win32_font_face_create_for_logfontw_hfont, allow win32
scaled_fonts to rescale themselves properly to the required CTM and
only use the font_face's hfont if we're sure it's appropriate.
Add support for the win32 surface using DDBs for similar surfaces and the
like when the orignal surface is created from a DC, or when a DDB is
explicitly created. A DIB is still created if alpha is required.
Also fixes a case where blitting win32 RGB24 -> ARGB32 surfaces was causing
alpha to leak into the ARGB32 surface instead of being set to fully opaque.
Adds cairo_win32_surface_create_dib() for creating a win32 DIB-backed
surface with a particular format. Also exposes
cairo_win32_surface_get_dc() to obtain the DC of a win32 surface.
(cherry picked from 0813a1b9b6f35d786fe8cb0d4748771023956cde commit)
Port to use new cairo_create interface.
Rewrite all tests that were using cairo_set_target_surface to instead create a temporary cairo_t, (eventually to be replaced with cairo_begin_group).
src/cairoint.h src/cairo-font.c src/cairo-gstate.c: Add "cairo_simple_font_face" for family/weight/slant and use it to implement font naming for the toy API.
src/cairo-ft.h src/cairo-ft-font.c cairo-win32.h cairo-win32-font.c: Switch the FreeType and Win32 backends over to using cairo_font_face_t.
src/cairo.h src/cairo-font.c src/cairo-ft-font.c src/cairo-win32-font.c: Pass in font matrix and CTM separately rather than as a composite scale when creating fonts; allows removing font_matrix argument to metrics functions.
src/cairoint.h src/cairo-font.c src/cairo-ft-font.c src/cairo-win32-font.c: Remove cairo_font_scale_t type, just use cairo_matrix_t and ignore translations.
src/cairo-ft.h src/cairo-ft-font.c: Remove cairo_ft_font_get_pattern() -- it can't work for all FreeType backend fonts and doesn't seem particularly useful.
Rename cairo_font_get_extents() to cairo_font_extents()
split font functions into a separate section.
Fix locking order problem.
Add caches for simple font faces and from cairo_font_face_t to cairo_scaled_font_t.
src/cairo.h src/cairoint.h src/cairo-font.c src/cairo-win32-font.c src/cairo-ft-font.c src/cairo-gstate.c src/cairo-gstate-private.h: Rename cairo_font_t to cairo_scaled_font_t.
src/cairo_win32_font.c src/cairo-win32.h doc/public/cairo-sections.txt: Rename cairo_font_create_for_logfont() into cairo_font_create_for_logfontw() to make clear what it takes. Don't add cairo_font_create_for_logfonta() for now.
Turn on building of the Win32 font backend.
src/cairo-win32-private.h src/Makefile.am: Private header for the Win32 backend.
src/cairo-win32-private.h src/cairo_win32_surface.c: Internally export _cairo_win32_print_gdi_error() for use in the font code.
src/cairo-win32-private.h src/cairo_win32_surface.c: Add _cairo_win32_surface_create_dib to create a DIB surface.
src/cairo-win32-private.h src/cairo_win32_surface.c: Add _cairo_surface_is_win32()
Check for vasnprintf.
Add a simple fixed-buffer size snprintf fallback in the absence of vasnprintf.
Add CAIRO_STATUS_INVALID_STRING
Use _cairo_utf8_to_ucs4().
Add cairo_bool_t
Add TRUE/FALSE definitions.
src/cairo.[ch] src/cairoint.h src/cairo_gstate.c: switch cairo_in_stroke/cairo_in_fill and all the functions used to implement them over to cairo_bool_t.
Make building the PDF backend conditional on having FreeType.
src/Makefile.am src/cairo_win32_surface.c src/cairo_win32_font.c src/cairo-win32.h: Add a Win32 backend using GDI and software fallbacks Font code is not yet there yet, but it works with the fontconfig backend.
src/cairo_gdip_font.cpp src/cairo_gdip_surface.cpp: Remove remnants of a GDI+ based backend.
Prefer platform-specific font backends to the fontconfig backend.
