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|
/* -*- c-file-style: "gnu"; indent-tabs-mode: nil -*- */
/*
* Ruby Cairo Binding
*
* Copyright 2010-2022 Sutou Kouhei <kou@cozmixng.org>
*
* This file is made available under the same terms as Ruby
*
*/
#include "rb_cairo.h"
#include "rb_cairo_private.h"
#include "rb_cairo_io.h"
#ifdef HAVE_RUBY_ST_H
# include <ruby/st.h>
#else
# include <st.h>
#endif
#ifdef CAIRO_HAS_XML_SURFACE
# include <cairo-xml.h>
#endif
#if defined(CAIRO_HAS_SCRIPT_SURFACE) || defined(CAIRO_HAS_XML_SURFACE)
# define NEED_DEFINE_OUTPUT_INITIALIZE 1
#endif
VALUE rb_cCairo_Device = Qnil;
VALUE rb_cCairo_DRMDevice = Qnil;
VALUE rb_cCairo_GLDevice = Qnil;
VALUE rb_cCairo_ScriptDevice = Qnil;
VALUE rb_cCairo_XCBDevice = Qnil;
VALUE rb_cCairo_XlibDevice = Qnil;
VALUE rb_cCairo_XMLDevice = Qnil;
VALUE rb_cCairo_CoglDevice = Qnil;
VALUE rb_cCairo_Win32Device = Qnil;
#if CAIRO_CHECK_VERSION(1, 10, 0)
static cairo_user_data_key_t cr_closure_key;
static cairo_user_data_key_t cr_object_holder_key;
static cairo_user_data_key_t cr_finished_key;
#define _SELF (RVAL2CRDEVICE(self))
static inline void
cr_device_check_status (cairo_device_t *device)
{
rb_cairo_check_status (cairo_device_status (device));
}
static VALUE
cr_device_get_klass (cairo_device_t *device)
{
VALUE klass;
cairo_device_type_t type;
type = cairo_device_get_type (device);
switch (type)
{
case CAIRO_DEVICE_TYPE_DRM:
klass = rb_cCairo_DRMDevice;
break;
case CAIRO_DEVICE_TYPE_GL:
klass = rb_cCairo_GLDevice;
break;
case CAIRO_DEVICE_TYPE_SCRIPT:
klass = rb_cCairo_ScriptDevice;
break;
case CAIRO_DEVICE_TYPE_XCB:
klass = rb_cCairo_XCBDevice;
break;
case CAIRO_DEVICE_TYPE_XLIB:
klass = rb_cCairo_XlibDevice;
break;
case CAIRO_DEVICE_TYPE_XML:
klass = rb_cCairo_XMLDevice;
break;
# if CAIRO_CHECK_VERSION(1, 11, 4)
case CAIRO_DEVICE_TYPE_COGL:
klass = rb_cCairo_CoglDevice;
break;
case CAIRO_DEVICE_TYPE_WIN32:
klass = rb_cCairo_Win32Device;
break;
# endif
default:
klass = rb_cCairo_Device;
break;
}
if (NIL_P (klass))
rb_raise (rb_eArgError, "unknown device type: %d", type);
return klass;
}
static VALUE
cr_device_script_supported_p (VALUE klass)
{
#ifdef CAIRO_HAS_SCRIPT_SURFACE
return Qtrue;
#else
return Qfalse;
#endif
}
static VALUE
cr_device_xml_supported_p (VALUE klass)
{
#ifdef CAIRO_HAS_XML_SURFACE
return Qtrue;
#else
return Qfalse;
#endif
}
/* constructor/de-constructor */
static void
cr_device_free (void *ptr)
{
cairo_device_t *device = ptr;
cairo_device_destroy (device);
}
static const rb_data_type_t cr_device_type = {
"Cairo::Device",
{
NULL,
cr_device_free,
},
NULL,
NULL,
RUBY_TYPED_FREE_IMMEDIATELY,
};
cairo_device_t *
rb_cairo_device_from_ruby_object (VALUE obj)
{
cairo_device_t *device;
if (!rb_cairo__is_kind_of (obj, rb_cCairo_Device))
{
rb_raise (rb_eTypeError, "not a cairo device");
}
TypedData_Get_Struct (obj, cairo_device_t, &cr_device_type, device);
if (!device)
rb_cairo_check_status (CAIRO_STATUS_NULL_POINTER);
return device;
}
#ifdef NEED_DEFINE_OUTPUT_INITIALIZE
static rb_cairo__object_holder_t *
cr_object_holder_new (VALUE object)
{
return rb_cairo__object_holder_new (rb_cCairo_Device, object);
}
static void
cr_object_holder_free (void *ptr)
{
rb_cairo__object_holder_free (rb_cCairo_Device, ptr);
}
#endif
VALUE
rb_cairo_device_to_ruby_object (cairo_device_t *device)
{
if (device)
{
VALUE klass;
klass = cr_device_get_klass (device);
cairo_device_reference (device);
return TypedData_Wrap_Struct (klass, &cr_device_type, device);
}
else
{
return Qnil;
}
}
VALUE
rb_cairo_device_to_ruby_object_with_destroy (cairo_device_t *device)
{
VALUE rb_device;
rb_device = rb_cairo_device_to_ruby_object (device);
if (device)
cairo_device_destroy (device);
return rb_device;
}
static VALUE
cr_device_allocate (VALUE klass)
{
return TypedData_Wrap_Struct (klass, &cr_device_type, NULL);
}
static VALUE
cr_device_initialize (int argc, VALUE *argv, VALUE self)
{
rb_raise(rb_eNotImpError,
"%s class creation isn't supported on this cairo installation",
rb_obj_classname(self));
return Qnil;
}
/* Backend device manipulation */
static VALUE
cr_device_destroy (VALUE self)
{
cairo_device_t *device;
device = _SELF;
cairo_device_destroy (device);
RTYPEDDATA_DATA (self) = NULL;
return self;
}
static VALUE
cr_device_finish (VALUE self)
{
cairo_device_t *device;
rb_cairo__io_callback_closure_t *closure;
device = _SELF;
closure = cairo_device_get_user_data (device, &cr_closure_key);
cairo_device_finish (device);
cairo_device_set_user_data (device, &cr_finished_key, (void *)CR_TRUE, NULL);
cairo_device_set_user_data (device, &cr_object_holder_key, NULL, NULL);
if (closure && !NIL_P (closure->error))
rb_exc_raise (closure->error);
cr_device_check_status (device);
return self;
}
static VALUE
cr_device_flush (VALUE self)
{
cairo_device_flush (_SELF);
cr_device_check_status (_SELF);
return self;
}
static VALUE
cr_device_release (VALUE self)
{
cairo_device_release (_SELF);
cr_device_check_status (_SELF);
return self;
}
static VALUE
cr_device_acquire (VALUE self)
{
cairo_device_acquire (_SELF);
cr_device_check_status (_SELF);
if (rb_block_given_p ())
return rb_ensure (rb_yield, self, cr_device_release, self);
else
return self;
}
static int
cr_finish_all_guarded_devices_at_end_iter (VALUE key, VALUE value, VALUE data)
{
cr_device_finish (key);
return ST_CONTINUE;
}
static void
cr_finish_all_guarded_devices_at_end (VALUE data)
{
rb_hash_foreach (rb_cairo__gc_guarded_objects (rb_cCairo_Device),
cr_finish_all_guarded_devices_at_end_iter,
Qnil);
}
#ifdef NEED_DEFINE_OUTPUT_INITIALIZE
static void
yield_and_finish (VALUE self)
{
cairo_device_t *device;
rb_yield (self);
device = _SELF;
if (!cairo_device_get_user_data (device, &cr_finished_key))
cr_device_finish (self);
}
#endif
#define DEFINE_OUTPUT_INITIALIZE(type) \
static VALUE \
cr_ ## type ## _device_initialize (VALUE self, \
VALUE file_name_or_output) \
{ \
cairo_device_t *device; \
\
if (rb_respond_to (file_name_or_output, rb_cairo__io_id_write)) \
{ \
rb_cairo__io_callback_closure_t *closure; \
\
closure = rb_cairo__io_closure_new (file_name_or_output); \
device = \
cairo_ ## type ## _create_for_stream (rb_cairo__io_write_func, \
(void *)closure); \
if (cairo_device_status (device)) \
{ \
rb_cairo__io_closure_destroy (closure); \
} \
else \
{ \
rb_ivar_set (self, rb_cairo__io_id_output, \
file_name_or_output); \
cairo_device_set_user_data (device, &cr_closure_key, \
closure, \
rb_cairo__io_closure_free); \
cairo_device_set_user_data (device, &cr_object_holder_key, \
cr_object_holder_new (self), \
cr_object_holder_free); \
} \
} \
else \
{ \
const char *file_name; \
file_name = StringValueCStr (file_name_or_output); \
device = cairo_ ## type ## _create (file_name); \
} \
\
cr_device_check_status (device); \
RTYPEDDATA_DATA (self) = device; \
if (rb_block_given_p ()) \
yield_and_finish (self); \
return Qnil; \
}
# ifdef CAIRO_HAS_SCRIPT_SURFACE
DEFINE_OUTPUT_INITIALIZE(script)
static VALUE
cr_script_device_write_comment (VALUE self, VALUE comment)
{
cairo_device_t *device;
device = _SELF;
cairo_script_write_comment (device,
StringValuePtr (comment),
(int) RSTRING_LEN (comment));
cr_device_check_status (device);
return Qnil;
}
static VALUE
cr_script_device_set_mode (VALUE self, VALUE mode)
{
cairo_device_t *device;
device = _SELF;
cairo_script_set_mode (device, RVAL2CRSCRIPTMODE (mode));
cr_device_check_status (device);
return Qnil;
}
static VALUE
cr_script_device_get_mode (VALUE self)
{
return INT2NUM (cairo_script_get_mode (_SELF));
}
static VALUE
cr_script_device_reply (VALUE self, VALUE recording_surface)
{
cairo_device_t *device;
device = _SELF;
cairo_script_from_recording_surface (device,
RVAL2CRSURFACE (recording_surface));
cr_device_check_status (device);
return Qnil;
}
# endif
# ifdef CAIRO_HAS_XML_SURFACE
DEFINE_OUTPUT_INITIALIZE(xml)
static VALUE
cr_xml_device_reply (VALUE self, VALUE recording_surface)
{
cairo_device_t *device;
device = _SELF;
cairo_xml_for_recording_surface (device,
RVAL2CRSURFACE (recording_surface));
cr_device_check_status (device);
return Qnil;
}
# endif
#endif
void
Init_cairo_device (void)
{
#if CAIRO_CHECK_VERSION(1, 10, 0)
rb_cCairo_Device =
rb_define_class_under (rb_mCairo, "Device", rb_cObject);
rb_define_alloc_func (rb_cCairo_Device, cr_device_allocate);
rb_cairo__initialize_gc_guard_holder_class (rb_cCairo_Device);
rb_set_end_proc(cr_finish_all_guarded_devices_at_end, Qnil);
rb_define_singleton_method (rb_cCairo_Device, "script_supported?",
cr_device_script_supported_p, 0);
rb_define_singleton_method (rb_cCairo_Device, "xml_supported?",
cr_device_xml_supported_p, 0);
rb_define_method (rb_cCairo_Device, "initialize", cr_device_initialize, -1);
rb_define_method (rb_cCairo_Device, "destroy", cr_device_destroy, 0);
rb_define_method (rb_cCairo_Device, "finish", cr_device_finish, 0);
rb_define_method (rb_cCairo_Device, "flush", cr_device_flush, 0);
rb_define_method (rb_cCairo_Device, "acquire", cr_device_acquire, 0);
rb_define_method (rb_cCairo_Device, "release", cr_device_release, 0);
RB_CAIRO_DEF_SETTERS (rb_cCairo_Device);
rb_cCairo_DRMDevice =
rb_define_class_under (rb_mCairo, "DRMDevice", rb_cCairo_Device);
rb_cCairo_GLDevice =
rb_define_class_under (rb_mCairo, "GLDevice", rb_cCairo_Device);
rb_cCairo_ScriptDevice =
rb_define_class_under (rb_mCairo, "ScriptDevice", rb_cCairo_Device);
# ifdef CAIRO_HAS_SCRIPT_SURFACE
rb_define_method (rb_cCairo_ScriptDevice, "initialize",
cr_script_device_initialize, 1);
rb_define_method (rb_cCairo_ScriptDevice, "write_comment",
cr_script_device_write_comment, 1);
rb_define_method (rb_cCairo_ScriptDevice, "set_mode",
cr_script_device_set_mode, 1);
rb_define_method (rb_cCairo_ScriptDevice, "mode",
cr_script_device_get_mode, 0);
rb_define_method (rb_cCairo_ScriptDevice, "reply",
cr_script_device_reply, 1);
RB_CAIRO_DEF_SETTERS (rb_cCairo_ScriptDevice);
# endif
rb_cCairo_XCBDevice =
rb_define_class_under (rb_mCairo, "XCBDevice", rb_cCairo_Device);
rb_cCairo_XlibDevice =
rb_define_class_under (rb_mCairo, "XlibDevice", rb_cCairo_Device);
rb_cCairo_XMLDevice =
rb_define_class_under (rb_mCairo, "XMLDevice", rb_cCairo_Device);
# ifdef CAIRO_HAS_XML_SURFACE
rb_define_method (rb_cCairo_XMLDevice, "initialize",
cr_xml_device_initialize, 1);
rb_define_method (rb_cCairo_XMLDevice, "reply",
cr_xml_device_reply, 1);
RB_CAIRO_DEF_SETTERS (rb_cCairo_XMLDevice);
# endif
rb_cCairo_CoglDevice =
rb_define_class_under (rb_mCairo, "CoglDevice", rb_cCairo_Device);
rb_cCairo_Win32Device =
rb_define_class_under (rb_mCairo, "Win32Device", rb_cCairo_Device);
#endif
}
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