Added beginnings of cairo bindings
Sampo Vuori
parent
1f08ee4c6f
commit
05bea5a1b5
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@ -29,3 +29,5 @@ library, but is useful enough to ship with the Factor distribution.
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- contrib/dlists.factor -- double-linked-lists (Mackenzie Straight)
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- contrib/xml.factor -- XML parser and writer (Daniel Ehrenberg)
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- contrib/cairo/ -- cairo bindings (Sampo Vuori)
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@ -0,0 +1,229 @@
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! Cairo stuff
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!
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! To run this code, bootstrap Factor like so:
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!
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! ./f boot.image.le32
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! -libraries:sdl:name=libSDL.so
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! -libraries:sdl-gfx:name=libSDL_gfx
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! -libraries:cairo:name=libcairo
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!
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! (But all on one line)
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!
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IN: cairo
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USING: hashtables ;
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USE: compiler
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USE: alien
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USE: errors
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USE: kernel
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USE: lists
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USE: math
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USE: namespaces
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USE: sdl
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USE: sdl-event
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USE: sdl-gfx
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USE: sdl-video
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USE: vectors
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USE: prettyprint
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USE: stdio
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USE: test
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USE: syntax
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USE: sequences
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! cairo_status_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_STATUS_SUCCESS
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ENUM: CAIRO_STATUS_NO_MEMORY
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ENUM: CAIRO_STATUS_INVALID_RESTORE
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ENUM: CAIRO_STATUS_INVALID_POP_GROUP
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ENUM: CAIRO_STATUS_NO_CURRENT_POINT
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ENUM: CAIRO_STATUS_INVALID_MATRIX
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ENUM: CAIRO_STATUS_NO_TARGET_SURFACE
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ENUM: CAIRO_STATUS_NULL_POINTER
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ENUM: CAIRO_STATUS_INVALID_STRING
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END-ENUM
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! cairo_operator_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_OPERATOR_CLEAR
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ENUM: CAIRO_OPERATOR_SRC
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ENUM: CAIRO_OPERATOR_DST
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ENUM: CAIRO_OPERATOR_OVER
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ENUM: CAIRO_OPERATOR_OVER_REVERSE
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ENUM: CAIRO_OPERATOR_IN
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ENUM: CAIRO_OPERATOR_IN_REVERSE
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ENUM: CAIRO_OPERATOR_OUT
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ENUM: CAIRO_OPERATOR_OUT_REVERSE
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ENUM: CAIRO_OPERATOR_ATOP
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ENUM: CAIRO_OPERATOR_ATOP_REVERSE
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ENUM: CAIRO_OPERATOR_XOR
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ENUM: CAIRO_OPERATOR_ADD
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ENUM: CAIRO_OPERATOR_SATURATE
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END-ENUM
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! cairo_line_cap_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_LINE_CAP_BUTT
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ENUM: CAIRO_LINE_CAP_ROUND
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ENUM: CAIRO_LINE_CAP_SQUARE
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END-ENUM
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! cair_line_join_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_LINE_JOIN_MITER
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ENUM: CAIRO_LINE_JOIN_ROUND
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ENUM: CAIRO_LINE_JOIN_BEVEL
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END-ENUM
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! cairo_fill_rule_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_FILL_RULE_WINDING
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ENUM: CAIRO_FILL_RULE_EVEN_ODD
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END-ENUM
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! cairo_font_slant_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_FONT_SLANT_NORMAL
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ENUM: CAIRO_FONT_SLANT_ITALIC
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ENUM: CAIRO_FONT_SLANT_OBLIQUE
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END-ENUM
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! cairo_font_weight_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_FONT_WEIGHT_NORMAL
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ENUM: CAIRO_FONT_WEIGHT_BOLD
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END-ENUM
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BEGIN-STRUCT: cairo_font_t
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FIELD: int refcount
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FIELD: uint scale
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FIELD: void* backend ! cairo_font_backend*
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END-STRUCT
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BEGIN-STRUCT: cairo_rectangle_t
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FIELD: short x
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FIELD: short y
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FIELD: ushort width
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FIELD: ushort height
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END-STRUCT
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BEGIN-STRUCT: cairo_clip_rec_t
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FIELD: cairo_rectangle_t rect
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FIELD: void* region
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FIELD: void* surface
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END-STRUCT
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BEGIN-STRUCT: cairo_matrix_t
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FIELD: void* m
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END-STRUCT
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BEGIN-STRUCT: cairo_gstate_t
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FIELD: uint operator ! cairo_operator_t
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FIELD: double tolerance
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FIELD: double line_width
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FIELD: uint line_cap ! cairo_line_cap_t
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FIELD: uint line_join ! cairo_line_join_t
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FIELD: double miter_limit
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FIELD: uint fill_rule ! cairo_fill_rule_t
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FIELD: void* dash ! double*
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FIELD: int num_dashes
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FIELD: double dash_offset
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FIELD: char* font_family
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FIELD: uint font_slant ! cairo_font_slant_t
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FIELD: uint font_weight ! cairo_font_weight_t
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FIELD: void* font ! cairo_font_t*
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FIELD: void* surface ! cairo_surface_t*
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FIELD: void* pattern ! cairo_pattern_t*
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FIELD: double alpha
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FIELD: cairo_clip_rec_t clip
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FIELD: double pixels_per_inch
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FIELD: cairo_matrix_t font_matrix
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FIELD: cairo_matrix_t ctm
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FIELD: cairo_matrix_t ctm_inverse
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FIELD: void* path ! cairo_path_t
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FIELD: void* pen_regular ! cairo_pen_t
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FIELD: void* next ! cairo_gstate*
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END-STRUCT
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BEGIN-STRUCT: cairo_t
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FIELD: uint ref_count
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FIELD: cairo_gstate_t* gstate
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FIELD: uint status ! cairo_status_t
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END-STRUCT
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! cairo_format_t
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BEGIN-ENUM: 0
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ENUM: CAIRO_FORMAT_ARGB32
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ENUM: CAIRO_FORMAT_RGB24
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ENUM: CAIRO_FORMAT_A8
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ENUM: CAIRO_FORMAT_A1
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END-ENUM
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: cairo_create ( cairo_surface_t -- cairo_t )
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"cairo_t*" "cairo" "cairo_create" [ "void*" ] alien-invoke ; compiled
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: cairo_destroy ( cairo_t -- )
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"void" "cairo" "cairo_destroy" [ "cairo_t*" ] ; compiled
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: cairo_image_surface_create_for_data ( data format width height stride -- cairo_surface_t)
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"void*" "cairo" "cairo_image_surface_create_for_data" [ "void*" "uint" "int" "int" "int" ] alien-invoke ; compiled
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: cairo_set_source_rgb ( cairo_t r g b -- )
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"void" "cairo" "cairo_set_source_rgb" [ "cairo_t*" "double" "double" "double" ] alien-invoke ; compiled
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: cairo_move_to ( cairo_t x y -- )
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"void" "cairo" "cairo_move_to" [ "cairo_t*" "double" "double" ] alien-invoke ; compiled
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: cairo_line_to ( cairo_t x y -- )
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"void" "cairo" "cairo_line_to" [ "cairo_t*" "double" "double" ] alien-invoke ; compiled
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: cairo_stroke ( cairo_t -- )
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"void" "cairo" "cairo_stroke" [ "cairo_t*" ] alien-invoke ; compiled
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: cairo_fill ( cairo_t -- )
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"void" "cairo" "cairo_fill" [ "cairo_t*" ] alien-invoke ; compiled
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: cairo_fill_preserve ( cairo_t -- )
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"void" "cairo" "cairo_fill_preserve" [ "cairo_t*" ] alien-invoke ; compiled
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: cairo_rectangle ( cairo_t x y width height -- )
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"void" "cairo" "cairo_rectangle" [ "cairo_t*" "double" "double" "double" "double" ] alien-invoke ; compiled
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: cairo_set_source ( cairo_t cairo_pattern_t -- )
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"void" "cairo" "cairo_set_source" [ "cairo_t*" "void*" ] alien-invoke ; compiled
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: cairo_pattern_create_linear ( x0 y0 x1 y1 -- cairo_pattern_t )
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"void*" "cairo" "cairo_pattern_create_linear" [ "double" "double" "double" "double" ] alien-invoke ; compiled
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: cairo_pattern_create_radial ( cx0 cy0 radius0 cx1 cy1 radius1 -- cairo_pattern_t )
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"void*" "cairo" "cairo_pattern_create_radial" [ "double" "double" "double" "double" "double" "double" ] alien-invoke ; compiled
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: cairo_set_source ( cairo_t pattern -- )
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"void" "cairo" "cairo_set_source" [ "cairo_t*" "void*" ] alien-invoke ; compiled
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: cairo_pattern_add_color_stop_rgba ( pattern offset red green blue alpha -- status )
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"uint" "cairo" "cairo_pattern_add_color_stop_rgba" [ "void*" "double" "double" "double" "double" "double" ] alien-invoke ; compiled
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: cairo_show_text ( cairo_t msg_utf8 -- )
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"void" "cairo" "cairo_show_text" [ "cairo_t*" "char*" ] alien-invoke ; compiled
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: cairo_text_path ( cairo_t msg_utf8 -- )
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"void" "cairo" "cairo_text_path" [ "cairo_t*" "char*" ] alien-invoke ; compiled
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: cairo_select_font_face ( cairo_t family font_slant font_weight -- )
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"void" "cairo" "cairo_select_font_face" [ "cairo_t*" "char*" "uint" "uint" ] alien-invoke ; compiled
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: cairo_set_font_size ( cairo_t scale -- )
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"void" "cairo" "cairo_set_font_size" [ "cairo_t*" "double" ] alien-invoke ; compiled
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: cairo_rotate ( cairo_t angle -- )
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"void" "cairo" "cairo_rotate" [ "cairo_t*" "double" ] alien-invoke ; compiled
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: cairo_translate ( cairo_t x y -- )
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"void" "cairo" "cairo_translate" [ "cairo_t*" "double" "double" ] alien-invoke ; compiled
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: cairo_identity_matrix ( cairo_t -- )
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"void" "cairo" "cairo_identity_matrix" [ "cairo_t*" ] alien-invoke ; compiled
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: cairo_set_line_width ( cairo_t width -- )
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"void" "cairo" "cairo_set_line_width" [ "cairo_t*" "double" ] alien-invoke ; compiled
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@ -0,0 +1,43 @@
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! SDL backend for cairo
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!
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! To run this code, bootstrap Factor like so:
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!
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! ./f boot.image.le32
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! -libraries:sdl:name=libSDL.so
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! -libraries:sdl-gfx:name=libSDL_gfx
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! -libraries:cairo:name=libcairo
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!
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! (But all on one line)
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!
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IN: cairo-sdl
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USING: hashtables ;
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USE: compiler
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USE: alien
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USE: errors
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USE: kernel
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USE: lists
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USE: math
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USE: namespaces
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USE: sdl
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USE: sdl-event
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USE: sdl-gfx
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USE: sdl-video
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USE: vectors
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USE: prettyprint
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USE: stdio
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USE: test
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USE: syntax
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USE: sequences
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USE: cairo
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SYMBOL: cr
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: set-up-cairo ( -- )
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surface get surface-pixels ! get pointer to pixel data
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CAIRO_FORMAT_ARGB32 ! only in argb32-mode both SDL and cairo agree on the pixel format
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surface get [ surface-w ] keep ! get surface width, keep it
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surface-h over 4 * ! get surface height (keep it) and calculate stride from the width
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cairo_image_surface_create_for_data
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cairo_create
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cr set ;
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@ -0,0 +1,60 @@
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! A simple cairo example
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!
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! To run this code, bootstrap Factor like so:
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!
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! ./f boot.image.le32
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! -libraries:sdl:name=libSDL.so
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! -libraries:sdl-gfx:name=libSDL_gfx
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! -libraries:cairo:name=libcairo
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!
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! (But all on one line)
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!
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! Then, start Factor as usual (./f factor.image) and enter these
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! at the listener:
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!
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! "cairo.factor" run-file
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! "cairo_sdl.factor" run-file
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! "cairo_simple.factor" run-file
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IN: cairo-simple
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USE: cairo
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USE: cairo-sdl
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USE: compiler
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USE: errors
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USE: kernel
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USE: namespaces
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USE: sdl
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USE: sdl-event
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USE: sdl-gfx
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USE: sdl-video
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: redraw ( -- )
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cr get
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[ cairo_identity_matrix ] keep
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[ 0.0 0.1 0.8 cairo_set_source_rgb ] keep ! set blue color
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[ 130.0 90.0 60.0 60.0 cairo_rectangle ] keep ! draw a rectangle
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cairo_fill ; ! and fill it
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: event-loop ( event -- )
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[ redraw ] with-surface
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dup SDL_PollEvent
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[
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dup event-type SDL_QUIT = [
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drop
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] [
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event-loop
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] if
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] [
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event-loop
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] if ;
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: cairo-sdl-test ( -- )
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320 240 32 SDL_HWSURFACE [
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set-up-cairo
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<event> event-loop
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cr get cairo_destroy
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SDL_Quit
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] with-screen ;
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cairo-sdl-test
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@ -0,0 +1,103 @@
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! A bit more complex cairo example
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!
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! To run this code, bootstrap Factor like so:
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!
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! ./f boot.image.le32
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! -libraries:sdl:name=libSDL.so
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! -libraries:sdl-gfx:name=libSDL_gfx
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! -libraries:cairo:name=libcairo
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!
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! (But all on one line)
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!
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! Then, start Factor as usual (./f factor.image) and enter these
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! at the listener:
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!
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! "cairo.factor" run-file
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! "cairo_sdl.factor" run-file
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! "cairo_text.factor" run-file
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IN: cairo-text
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SYMBOL: angle
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USING: cairo cairo-sdl compiler errors kernel namespaces sdl sdl-event sdl-gfx sdl-video lists math sequences ;
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: draw-rect ( angle -- )
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cr get
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[ cairo_identity_matrix ] keep
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[ 160.0 120.0 cairo_translate ] keep
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[ swap cairo_rotate ] keep
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[ 0.0 50.0 cairo_translate ] keep
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[ -10.0 -10.0 20.0 20.0 cairo_rectangle ] keep
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cairo_fill ;
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: clear-surface ( -- )
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cr get
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[ cairo_identity_matrix ] keep
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[ 0.0 0.0 0.0 cairo_set_source_rgb ] keep
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[ 0.0 0.0 320.0 240.0 cairo_rectangle ] keep
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cairo_fill ;
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: draw-fan ( -- )
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10 [
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cr get over
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10 / dup dup
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cairo_set_source_rgb
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3 / angle get +
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draw-rect
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] each ;
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: draw-cairo-text ( -- )
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cr get
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[ cairo_identity_matrix ] keep
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[ 160 80.0 cairo_translate ] keep
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[ angle get sin 3 / cairo_rotate ] keep
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[ -60.0 25.0 cairo_translate ] keep
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[ 0.0 0.5 1.0 cairo_set_source_rgb ] keep
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[ "serif" CAIRO_FONT_SLANT_NORMAL CAIRO_FONT_WEIGHT_BOLD cairo_select_font_face ] keep
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[ 45.0 cairo_set_font_size ] keep
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[ "Cairo" cairo_text_path ] keep
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[ cairo_fill_preserve ] keep
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[ 0.0 0.4 0.8 cairo_set_source_rgb ] keep
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[ 2.0 cairo_set_line_width ] keep
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cairo_stroke ;
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: draw-factor-text ( -- )
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cr get
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[ cairo_identity_matrix ] keep
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[ 85.0 140.0 cairo_translate ] keep
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"Factor" cairo_show_text ;
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: redraw ( -- )
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clear-surface
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draw-fan
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draw-cairo-text
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draw-factor-text
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;
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: event-loop ( event -- )
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angle [ 0.1 + ] change
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[ redraw ] with-surface
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dup SDL_PollEvent
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[
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dup event-type SDL_QUIT = [
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drop
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] [
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event-loop
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] if
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] [
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event-loop
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] if ;
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: cairo-sdl-test ( -- )
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0 angle set
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320 240 32 SDL_HWSURFACE [
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set-up-cairo
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<event> event-loop
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SDL_Quit
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] with-screen ;
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cairo-sdl-test
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