This adds a new function which has as its only effect the elimination
of
the current point. This makes it much easier to use the various
cairo_arc calls when the initial line_to is not actually desired.
This function also unifies and generalizes the long-existing behavior
of cairo_line_to being treated as cairo_move_to when there is no
current point. With the addition of cairo_new_sub_path this becomes a
documented feature with similar behavior in cairo_curve_to as well.
Replace cairo cache implementation (this code from cworth)
No more global glyph cache to clean up
Store glyphs in new per-scaled font caches which hold user-space metrics and device space bounding boxes
Refactor glyph drawing APIs so that the surface API is invoked directly from the gstate code.
Add path creation/destruction routines (to hold glyph paths)
New implementation of scaled fonts which uses per-scaled_font caches for glyphs and keeps user-space metrics, device-space bboxes along with glyph images and/or glyph paths.
Adapt to new scaled font API changes.
New cache and scaled_font APIs
Repond to bug fix in metrics computation for glyphs where y values were rounded up instead of down because of a sign difference between cairo and FreeType.
Reviewed by: otaylor, cworth
Add cairo_stroke_preserve, cairo_fill_preserve, and cairo_clip_preserve.
Rip the path out of cairo_gstate_t.
Add path to cairo_t.
Bring in most of the path code that used to live in cairo-gstate.c
Move arc generation code into its own file.
Accept path+ctm_inverse+tolerance instead of gstate. Absorb flattening and device space->user space conversion that used to be in _cairo_gstate_intepret_path.
Prefer cairo_fixed_t parameters over ciaro_point_t for cross-file interfaces.
Track changes in _cairo_path_fixed interfaces.
Port to use cairo_fill_preserve rather than cairo_save/cairo_restore which no longer work for saving the path.
Remove get and set of current point since it is no longer affected by cairo_save and cairo_restore. Add get and set testing for cairo_matrix_t.
Add new cairo_path_t, containing a cairo_path_data_t array and an explicit length. Remove CAIRO_PATH_END_PATH terminator from cairo_path_data_t.
Rename the internal path object from cairo_path_t to cairo_path_real_t.
cairo_path.last_move_point and cairo_path.current_point are now fixed-point not doubles for consistency.
Now accept 4 explicit function pointers rather than a structure. Eliminate unnecessary done_path callback.
Track change in _cairo_path_interpret. Code previously in done_path callback is now here immediately after call to _cairo_path_interpret.
Internal _cairo_path API modified to accept fixed-point data everywhere. Much cleaner this way.
Have to convert doubles to fixed-point to track changes in _cairo_path API.
Keep data in fixed-point rather than going through intermediate doubles. Track changes in _cairo_path API.
New function to help when working with freetype.
Add current_point state. (_cairo_path_current_point): New function. (_cairo_path_rel_move_to): (_cairo_path_rel_line_to): (_cairo_path_rel_curve_to): New functions.
Eliminate current_point state. (_cairo_gstate_show_text): (_cairo_gstate_text_path): Use new _cairo_path_current_point.
Added new cairo_in_stroke and cairo_in_fill.
* src/cairo_gstate.c (_cairo_gstate_in_stroke): (_cairo_gstate_in_fill): New functions to support for cairo_in_stroke and cairo_in_fill. Many thanks to Thomas Hunger <info@teh-web.de> for the initial implementation which demonstrated how easy this would be and pushed me to go and write it already.
Fixed to use _cairo_fixed_from_double instead of XDoubleToFixed.
