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GraphViz.jl
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GraphViz.jl
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module GraphViz
if isfile(joinpath(dirname(@__FILE__),"..","deps","deps.jl"))
include("../deps/deps.jl")
else
error("GraphViz not properly installed. Please run Pkg.build(\"GraphViz\").")
end
# Plugin Struct
immutable gvdevice_engine_t
initialize::Ptr{Void}
format::Ptr{Void}
finalize::Ptr{Void}
end
immutable Pointf
x::Float64
y::Float64
end
immutable gvdevice_features_t
flags::Cint
default_margin_x::Float64
default_margin_y::Float64
default_pagesize_x::Float64
default_pagesize_y::Float64
default_dpi_x::Float64
default_dpi_y::Float64
end
immutable gvplugin_installed_t
id::Cint
ctype::Ptr{UInt8}
quality::Cint
engine::Ptr{gvdevice_engine_t}
features::Ptr{gvdevice_features_t}
end
const API_render = Int32(0)
const API_layout = Int32(1)
const API_textlayout = Int32(2)
const API_device = Int32(3)
const API_loadimage = Int32(4)
const EMIT_SORTED = (1<<0)
const EMIT_COLORS = (1<<1)
const EMIT_CLUSTERS_LAST = (1<<2)
const EMIT_PREORDER = (1<<3)
const EMIT_EDGE_SORTED = (1<<4)
const GVDEVICE_DOES_PAGES = (1<<5)
const GVDEVICE_DOES_LAYERS = (1<<6)
const GVDEVICE_EVENTS = (1<<7)
const GVDEVICE_DOES_TRUECOLOR = (1<<8)
const GVDEVICE_BINARY_FORMAT = (1<<9)
const GVDEVICE_COMPRESSED_FORMAT = (1<<10)
const GVDEVICE_NO_WRITER = (1<<11)
const GVRENDER_Y_GOES_DOWN = (1<<12)
const GVRENDER_DOES_TRANSFORM = (1<<13)
const GVRENDER_DOES_ARROWS = (1<<14)
const GVRENDER_DOES_LABELS = (1<<15)
const GVRENDER_DOES_MAPS = (1<<16)
const GVRENDER_DOES_MAP_RECTANGLE = (1<<17)
const GVRENDER_DOES_MAP_CIRCLE = (1<<18)
const GVRENDER_DOES_MAP_POLYGON = (1<<19)
const GVRENDER_DOES_MAP_ELLIPSE = (1<<20)
const GVRENDER_DOES_MAP_BSPLINE = (1<<21)
const GVRENDER_DOES_TOOLTIPS = (1<<22)
const GVRENDER_DOES_TARGETS = (1<<23)
const GVRENDER_DOES_Z = (1<<24)
const GVRENDER_NO_WHITE_BG = (1<<25)
const LAYOUT_NOT_REQUIRED = (1<<26)
const OUTPUT_NOT_REQUIRED = (1<<27)
immutable gvplugin_api_t
api::Cint
types::Ptr{gvplugin_installed_t}
end
immutable gvplugin_library_t
name::Ptr{UInt8}
apis::Ptr{gvplugin_api_t}
end
# Job Struct
immutable gvplugin_active_device_t
engine::Ptr{gvdevice_engine_t}
id::Cint
features::Ptr{gvdevice_features_t}
ctype::Ptr{UInt8}
end
immutable gvplugin_active_render_t
engine::Ptr{Void}
id::Cint
features::Ptr{Void}
ctype::Ptr{UInt8}
end
immutable gvplugin_active_loadimage_t
engine::Ptr{Void}
id::Cint
ctype::Ptr{UInt8}
end
immutable gv_argvlist_t
argv::Ptr{Ptr{UInt8}}
argc::Cint;
alloc::Cint;
end
immutable Point{T}
x::T
y::T
end
immutable Box{T}
topleft::Point{T}
bottomright::Point{T}
end
immutable gvdevice_callback_t
refresh::Ptr{Void} # void (*refresh) (GVJ_t * job);
button_press::Ptr{Void} # void (*button_press) (GVJ_t * job, int button, pointf pointer);
button_release::Ptr{Void} # void (*button_release) (GVJ_t * job, int button, pointf pointer);
motion::Ptr{Void} # void (*motion) (GVJ_t * job, pointf pointer);
modify::Ptr{Void} # void (*modify) (GVJ_t * job, const char *name, const char *value);
del::Ptr{Void} # void (*del) (GVJ_t * job); /* can't use "delete" 'cos C++ stole it */
read::Ptr{Void} # void (*read) (GVJ_t * job, const char *filename, const char *layout);
layout::Ptr{Void} # void (*layout) (GVJ_t * job, const char *layout);
render::Ptr{Void} # void (*render) (GVJ_t * job, const char *format, const char *filename);
end
# TODO: These are probably wrong
type GVCOMMON_s
info::Ptr{Ptr{UInt8}}
cmdname::Ptr{UInt8}
verbose::Cint
config::UInt8
auto_outfile_names::UInt8
errorfn::Ptr{Void}
show_boxes::Ptr{Ptr{Void}}
lib::Ptr{Ptr{Void}}
viewNum::Cint
builtins::Ptr{Void}
demand_loading::Cint
end
type GVC_s
common::GVCOMMON_s
config_path::Ptr{UInt8}
config_found::UInt8
input_filenames::Ptr{Ptr{UInt8}}
gvgs::Ptr{Void}
gvg::Ptr{Void}
# Hack until tuples are properly inlined into types
apis0::Ptr{Void}
apis1::Ptr{Void}
apis2::Ptr{Void}
apis3::Ptr{Void}
apis4::Ptr{Void}
api0::Ptr{Void}
api1::Ptr{Void}
api2::Ptr{Void}
api3::Ptr{Void}
api4::Ptr{Void}
packages::Ptr{Void}
# size_t (*write_fn) (GVJ_t *job, const char *s, size_t len);
write_fn::Ptr{Void}
# More stuff I don't need right now
end
type GVJ_s
gvc::Ptr{GVC_s}
next::Ptr{GVJ_s}
next_active::Ptr{GVJ_s}
common::Ptr{Void}
obj_state::Ptr{Void}
input_filename::Ptr{UInt8}
graph_index::Cint
layout_type::Ptr{UInt8}
output_filename::Ptr{UInt8}
output_file::Ptr{Void}
output_data::Ptr{UInt8}
output_data_allocated::Cuint
output_data_position::Cuint
output_langname::Ptr{UInt8}
output_lang::Ptr{Cint}
render::gvplugin_active_render_t
device::gvplugin_active_device_t
loadimage::gvplugin_active_loadimage_t
callbacks::Ptr{gvdevice_callback_t}
device_dpi::Pointf
device_sets_dpi::UInt8
displat::Ptr{Void}
screen::Cint
context::Ptr{Void}
external_context::UInt8
imagedata::Ptr{UInt8}
flags::Cint
numLayers::Cint
layerNum::Cint
pagesArraySize::Point{Int32}
pagesArrayFirst::Point{Int32}
pagesArrayMajor::Point{Int32}
pagesArrayMinor::Point{Int32}
pagesArrayElem::Point{Int32}
numPages::Cint
bb::Box{Float64}
pad::Point{Float64}
clip::Box{Float64}
pageBox::Box{Float64}
pageSize::Point{Float64}
focus::Point{Float64}
zoom::Float64
rotation::Cint
view::Point{Float64}
canvasBox::Box{Float64}
margin::Point{Float64}
dpi::Point{Float64}
width::UInt32
height::UInt32
pageBoundingBox::Box{Int32}
boundingBox::Box{Int32}
scale::Point{Float64}
translation::Point{Float64}
devscale::Point{Float64}
fit_mode::UInt8
needs_refresh::UInt8
click::UInt8
has_grown::UInt8
has_been_rendered::UInt8
button::UInt8
pointer::Point{Float64}
oldpointer::Point{Float64}
current_obj::Ptr{Void}
selected_obj::Ptr{Void}
active_tooltip::Ptr{UInt8}
selected_href::Ptr{UInt8}
selected_obj_type_name::gv_argvlist_t
selected_obj_attributes::gv_argvlist_t
window::Ptr{Void}
keybindings::Ptr{Void}
numkeys::Cint
keycodes::Ptr{Void}
end
# Disciplines
immutable Agmemdisc_s
#void *(*open) (Agdisc_t*); /* independent of other resources */
open::Ptr{Void}
#void *(*alloc) (void *state, size_t req);
alloc::Ptr{Void}
#void *(*resize) (void *state, void *ptr, size_t old, size_t req);
resize::Ptr{Void}
# void (*free) (void *state, void *ptr);
free::Ptr{Void}
# void (*close) (void *state);
close::Ptr{Void}
end
immutable Agiddisc_s
# void *(*open) (Agraph_t * g, Agdisc_t*); /* associated with a graph */
open::Ptr{Void}
# long (*map) (void *state, int objtype, char *str, unsigned long *id, int createflag);
map::Ptr{Void}
# long (*alloc) (void *state, int objtype, unsigned long id);
alloc::Ptr{Void}
#void (*free) (void *state, int objtype, unsigned long id);
free::Ptr{Void}
#char *(*print) (void *state, int objtype, unsigned long id);
print::Ptr{Void}
#void (*close) (void *state);
close::Ptr{Void}
#void (*idregister) (void *state, int objtype, void *obj);
idregister::Ptr{Void}
end
immutable Agiodisc_s
# int (*afread) (void *chan, char *buf, int bufsize);
afread::Ptr{Void}
# int (*putstr) (void *chan, const char *str);
putstr::Ptr{Void}
# int (*flush) (void *chan); /* sync */
flush::Ptr{Void}
end
immutable Agdisc_s
mem::Ptr{Agmemdisc_s}
id::Ptr{Agiddisc_s}
io::Ptr{Agiodisc_s}
end
function jl_afread(io::Ptr{Void}, buf::Ptr{UInt8}, bufsize::Cint)
#@show (io,buf,bufsize)
ret = readbytes!(unsafe_pointer_to_objref(io)::IO,unsafe_wrap(Array,buf,Int(bufsize)))
#@show ret
convert(Cint,ret)
end
function jl_putstr(io::Ptr{Void}, str::Ptr{UInt8})
#@show (io,str)
convert(Cint,write(unsafe_pointer_to_objref(io)::IO,unsafe_wrap(Array,str,Int(ccall(:strlen,Csize_t,(Ptr{UInt8},),str)))))::Cint
end
jl_flush(io::Ptr{Void}) = convert(Cint,0)
const JuliaIODisc = [Agiodisc_s(
cfunction(jl_afread,Cint,(Ptr{Void},Ptr{UInt8},Cint)),
cfunction(jl_putstr,Cint,(Ptr{Void},Ptr{UInt8})),
cfunction(jl_flush,Cint,(Ptr{Void},))
)]
null(::Type{gvplugin_installed_t}) = gvplugin_installed_t(Int32(0),convert(Ptr{UInt8},0),
Int32(0),convert(Ptr{gvdevice_engine_t},0),convert(Ptr{gvdevice_features_t},0))
null(::Type{gvplugin_api_t}) = gvplugin_api_t(Int32(0),convert(Ptr{gvplugin_installed_t},0))
# Memory interface
# I/O interface
# API - Context
type Context
handle::Ptr{Void}
function Context()
this = new(ccall((:gvContext,gvc),Ptr{Void},()))
finalizer(this,free)
this
end
end
function free(t::Context)
if t.handle != C_NULL
ccall((:gvFreeContext,gvc), Void, (Ptr{Void},), t.handle)
end
t.handle = C_NULL
end
# API - Graph
export Graph
type Graph
handle::Ptr{Void}
didlayout::Bool
function Graph(p::Ptr{Void})
this = new(p,false)
finalizer(this,free)
this
end
end
function free(g::Graph)
if g.handle != C_NULL
ccall((:agclose,cgraph), Cint, (Ptr{Void},), g.handle)
end
g.handle = C_NULL
end
Graph(graph::IO) = Graph(ccall((:agread,cgraph),Ptr{Void},(Any,Ptr{Void}),graph,[Agdisc_s(
cglobal((:AgMemDisc,cgraph)),
cglobal((:AgIdDisc,cgraph)),
pointer(JuliaIODisc)
)]))
Graph(graph::Vector{UInt8}) = Graph(IOBuffer(graph))
Graph(graph::String) = Graph(graph.data)
function layout!(g::Graph;engine="neato", context = default_context)
@assert g.handle != C_NULL
ccall((:gvLayout,gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8}),context.handle,g.handle,engine)
g.didlayout = true
end
render_x11(c::Context,g::Graph) = ccall((:gvRender,gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8},Ptr{Void}),c.handle,g.handle,"x11",C_NULL)
render_jobs(c::Context,g::Graph) = ccall((:gvRenderJobs,gvc),Cint,(Ptr{Void},Ptr{Void}),c.handle,g.handle)
# Render
# IO device
type IODeviceState
io::IO
oldwritefn::Ptr{Void}
end
const active_devices = ObjectIdDict()
function jlio_write(job::Ptr{Void},s::Ptr{UInt8},len::Csize_t)
job = unsafe_load(convert(Ptr{GVJ_s},job))
ioc = unsafe_pointer_to_objref(job.context)::IODeviceState
write(ioc.io,unsafe_wrap(Array,s,Int(len)))
len #Julia doesn't do half things :)
end
# determined by counting bytes ;)
const WRITEFN_OFFSET = 200
function julia_io_initialize(firstjob::Ptr{Void})
#@show firstjob
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
# Temporarily put in our custom write function
ioc = unsafe_pointer_to_objref(job.context)::IODeviceState
writefnptr = convert(Ptr{Ptr{Void}},job.gvc+WRITEFN_OFFSET)
ioc.oldwritefn = unsafe_load(writefnptr)
unsafe_store!(writefnptr,cfunction(jlio_write,Csize_t,(Ptr{Void},Ptr{UInt8},Csize_t)))
# This function has void return
nothing
end
function julia_io_finalize(firstjob::Ptr{Void})
# Reset the write pointer we changed in julia_io_initialize
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
ioc = unsafe_pointer_to_objref(job.context)::IODeviceState
writefnptr = convert(Ptr{Ptr{Void}},job.gvc+WRITEFN_OFFSET)
unsafe_store!(writefnptr,ioc.oldwritefn)
# Also remove it from the gc preserve dict
haskey(active_devices,ioc) && pop!(active_devices,ioc)
nothing
end
const default_context = GraphViz.Context()
const julia_io_engine = [ gvdevice_engine_t(cfunction(julia_io_initialize,Void,(Ptr{Void},)),C_NULL,cfunction(julia_io_finalize,Void,(Ptr{Void},))) ]
const julia_io_features = [ gvdevice_features_t(Int32(GVDEVICE_DOES_TRUECOLOR|GVDEVICE_DOES_LAYERS),0.,0.,0.,0.,72.,72.) ]
const julia_io_name = "julia_io:svg".data
const julia_io_libname = "julia_io".data
const julia_io_device =
[
gvplugin_installed_t(Int32(0),pointer(julia_io_name), Int32(0), pointer(julia_io_engine), pointer(julia_io_features));
null(gvplugin_installed_t)
]
const julia_io_api =
[
gvplugin_api_t(API_device, pointer(julia_io_device))
null(gvplugin_api_t)
]
add_julia_io!(c::Context) = ccall((:gvAddLibrary,gvc),Void,(Ptr{Void},Ptr{gvplugin_library_t}),c.handle,[gvplugin_library_t(pointer(julia_io_libname),pointer(julia_io_api))])
function render(io::IO,g::GraphViz.Graph; context = default_context, format="julia_io:svg")
GraphViz.add_julia_io!(context)
if !g.didlayout
error("Must call layout before calling render!")
end
state = IODeviceState(io,C_NULL)
active_devices[state] = state
ccall((:gvRenderContext,GraphViz.gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8},Any),context.handle,g.handle,format,state)
end
function Base.show(io::IO, ::MIME"image/svg+xml", x::Graph)
if !x.didlayout
layout!(x,engine="neato")
end
render(io,x)
end
# Cairo device
if isdir(Pkg.dir("Cairo"))
using Cairo
function cairo_initialize(firstjob::Ptr{Void})
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
if job.context != C_NULL
c = unsafe_pointer_to_objref(job.context)::CairoContext
job.context = c.ptr
job.external_context = 0x1
job.width = width(c.surface)
job.height = height(c.surface)
unsafe_store!(firstjob,job)
else
job.external_context = 1
unsafe_store!(firstjob,job)
global last_surface = firstjob
end
nothing
end
global last_surface = nothing
function cairo_finalize(firstjob::Ptr{Void})
#=firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
if last_surface == firstjob
surface = ccall((:cairo_get_target,Cairo._jl_libcairo),Ptr{Void},(Ptr{Void},),job.context)
last_surface = CairoSurface(surface, job.width, job.height)
end=#
nothing
end
function cairo_format(firstjob::Ptr{Void})
global last_surface
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
if last_surface == firstjob
surface = ccall((:cairo_get_target,Cairo._jl_libcairo),Ptr{Void},(Ptr{Void},),job.context)
last_surface = CairoSurface(surface, job.width, job.height)
end
nothing
end
const generic_cairo_engine = [ gvdevice_engine_t(cfunction(cairo_initialize,Void,(Ptr{Void},)),cfunction(cairo_format,Void,(Ptr{Void},)),cfunction(cairo_finalize,Void,(Ptr{Void},))) ]
const generic_cairo_features = [ gvdevice_features_t(Int32(0),0.,0.,0.,0.,96.,96.) ]
const generic_cairo_features_interactive = [ gvdevice_features_t(Int32(0),0.,0.,0.,0.,96.,96.) ]
const generic_cairo_name = "julia:cairo".data
const generic_cairo_libname = "julia:cairo".data
const generic_cairo_device =
[
gvplugin_installed_t(Int32(0),pointer(generic_cairo_name), Int32(0), pointer(generic_cairo_engine), pointer(generic_cairo_features));
null(gvplugin_installed_t)
]
const generic_cairo_api =
[
gvplugin_api_t(API_device, pointer(generic_cairo_device))
null(gvplugin_api_t)
]
add_julia_cairo!(c::Context) = ccall((:gvAddLibrary,gvc),Void,(Ptr{Void},Ptr{gvplugin_library_t}),c.handle,[gvplugin_library_t(pointer(generic_cairo_libname),pointer(generic_cairo_api))])
function render(c::CairoContext,g::GraphViz.Graph; context = default_context, format="julia:cairo")
GraphViz.add_julia_cairo!(context)
if !g.didlayout
error("Must call layout before calling render!")
end
ccall((:gvRenderContext,GraphViz.gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8},Any),context.handle,g.handle,format,c)
end
function cairo_render(g::GraphViz.Graph; context = default_context, format="julia:cairo")
global last_surface
GraphViz.add_julia_cairo!(context)
if !g.didlayout
error("Must call layout before calling render!")
end
ccall((:gvRenderContext,GraphViz.gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8},Ptr{Void}),context.handle,g.handle,format,C_NULL)
surface = last_surface
last_surface = nothing
return surface
end
function Base.show(io::IO, m::MIME"image/png", x::Graph)
if !x.didlayout
layout!(x,engine="dot")
end
show(io, m, cairo_render(x))
end
#=
if isdir(Pkg.dir("Gtk"))
using Gtk
function gtk_initialize(firstjob::Ptr{Void})
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
c = unsafe_pointer_to_objref(job.context)::Gtk.Canvas
c.data = firstjob
job.context = getgc(c).ptr
job.window = pointer_from_objref(c)
unsafe_store!(firstjob,job)
nothing
end
function gtk_finalize(firstjob::Ptr{Void})
firstjob = convert(Ptr{GVJ_s},firstjob)
job = unsafe_load(firstjob)
c = unsafe_pointer_to_objref(job.window)::Gtk.Canvas
draw(gtk_update,c)
wait() #TODO: Make conditional on closing the widget
nothing
end
function gtk_update(c::Canvas)
jobp = c.data::Ptr{GVJ_s}
job = unsafe_load(jobp)
job.height = height(c)
job.width = width(c)
job.context = getgc(c).ptr
job.external_context = 0x1
unsafe_store!(jobp,job)
println(job.callbacks)
println(unsafe_load(job.callbacks).refresh)
ccall(unsafe_load(job.callbacks).refresh,Void,(Ptr{Void},),jobp)
end
const gtk_engine = [ gvdevice_engine_t(cfunction(gtk_initialize,Void,(Ptr{Void},)),C_NULL,cfunction(gtk_finalize,Void,(Ptr{Void},))) ]
const gtk_features = [ gvdevice_features_t(Int32(GVDEVICE_EVENTS),0.,0.,0.,0.,96.,96.) ]
const gtk_name = "julia_gtk:cairo".data
const gtk_libname = "julia_gtk:cairo".data
const gtk_device =
[
gvplugin_installed_t(Int32(0),pointer(gtk_name), Int32(0), pointer(gtk_engine), pointer(gtk_features));
null(gvplugin_installed_t)
]
const gtk_api =
[
gvplugin_api_t(API_device, pointer(gtk_device))
null(gvplugin_api_t)
]
add_julia_gtk!(c::Context) = ccall((:gvAddLibrary,gvc),Void,(Ptr{Void},Ptr{gvplugin_library_t}),c.handle,[gvplugin_library_t(pointer(gtk_libname),pointer(gtk_api))])
function render(c::Gtk.Canvas,cg::Context,g::Graph)
@async begin
add_julia_gtk!(cg)
ccall((:gvRenderContext,gvc),Cint,(Ptr{Void},Ptr{Void},Ptr{UInt8},Any),cg.handle,g.handle,"julia_gtk",c)
end
nothing
end
end
=#
end
graph_plugins(c::Context) = Graph(ccall((:gvPluginsGraph,gvc),Ptr{Void},(Ptr{Void},),c.handle))
function listPlugins(c,kind)
s = Array(Cint,1)
r = ccall((:gvPluginList,gvc),Ptr{Ptr{UInt8}},(Ptr{Void},Ptr{UInt8},Ptr{Cint},Ptr{UInt8}),c.handle,kind,s,C_NULL)
if r == C_NULL
error("No Plugins available")
end
ret = Array(ByteString,s[1])
for i = 1:s[1]
ret[i] = bytestring(unsafe_load(r,i))
c_free(unsafe_load(r,i))
end
c_free(r)
ret
end
end