efl/src/lib/ector/cairo/ector_renderer_cairo_gradie...

222 lines
8.3 KiB
C

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <Eina.h>
#include <Ector.h>
#include <cairo/Ector_Cairo.h>
#include "ector_private.h"
#include "ector_cairo_private.h"
static cairo_pattern_t *(*cairo_pattern_create_radial)(double cx0, double cy0,
double radius0,
double cx1, double cy1,
double radius1) = NULL;
static void (*cairo_set_source)(cairo_t *cr, cairo_pattern_t *source) = NULL;
static void (*cairo_fill)(cairo_t *cr) = NULL;
static void (*cairo_arc)(cairo_t *cr,
double xc, double yc,
double radius,
double angle1, double angle2) = NULL;
static void (*cairo_pattern_destroy)(cairo_pattern_t *pattern) = NULL;
static void (*cairo_pattern_set_extend)(cairo_pattern_t *pattern, cairo_extend_t extend) = NULL;
static void (*cairo_pattern_set_matrix)(cairo_t *cr, cairo_matrix_t *matrix) = NULL;
static void (*cairo_matrix_init)(cairo_matrix_t *matrix,
double xx, double yx,
double xy, double yy,
double x0, double y0) = NULL;
// FIXME: as long as it is not possible to directly access the parent structure
// this will be duplicated from the linear gradient renderer
typedef struct _Ector_Renderer_Cairo_Gradient_Radial_Data Ector_Renderer_Cairo_Gradient_Radial_Data;
struct _Ector_Renderer_Cairo_Gradient_Radial_Data
{
Ector_Cairo_Surface_Data *parent;
};
static Eina_Bool
_ector_renderer_cairo_gradient_radial_ector_renderer_prepare(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
{
ector_renderer_prepare(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS));
if (!pd->parent)
{
Ector_Renderer_Data *base;
base = efl_data_scope_get(obj, ECTOR_RENDERER_CLASS);
pd->parent = efl_data_xref(base->surface, ECTOR_CAIRO_SURFACE_CLASS, obj);
}
return EINA_FALSE;
}
static cairo_pattern_t *
_ector_renderer_cairo_gradient_radial_prepare(Eo *obj,
Ector_Renderer_Gradient_Radial_Data *grd,
Ector_Renderer_Gradient_Data *gd,
unsigned int mul_col)
{
Ector_Renderer_Data *pd = efl_data_scope_get(obj, ECTOR_RENDERER_CLASS);
cairo_pattern_t *pat;
cairo_matrix_t *pd_m;
pat = cairo_pattern_create_radial(grd->focal.x, grd->focal.y, 0,
grd->radial.x, grd->radial.y, grd->radius);
if (!pat) return NULL;
_ector_renderer_cairo_gradient_prepare(pat, gd, mul_col);
cairo_pattern_set_extend(pat, _ector_cairo_extent_get(gd->s));
pd_m = malloc(sizeof (cairo_matrix_t));
if (pd->m)
{
cairo_matrix_init(pd_m,
pd->m->xx, pd->m->yx,
pd->m->xy, pd->m->yy,
pd->m->xz, pd->m->yz);
cairo_pattern_set_matrix(pat, pd_m);
}
return pat;
}
// Clearly duplicated and should be in a common place...
static Eina_Bool
_ector_renderer_cairo_gradient_radial_ector_renderer_draw(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd, Efl_Gfx_Render_Op op, Eina_Array *clips, unsigned int mul_col)
{
Ector_Renderer_Gradient_Radial_Data *grd;
Ector_Renderer_Gradient_Data *gd;
cairo_pattern_t *pat;
// FIXME: Handle clipping and generally make it work :-)
grd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_RADIAL_MIXIN);
gd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_MIXIN);
if (!grd || !gd) return EINA_FALSE;
pat = _ector_renderer_cairo_gradient_radial_prepare(obj, grd, gd, mul_col);
if (!pat) return EINA_FALSE;
ector_renderer_draw(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS), op, clips, mul_col);
cairo_arc(pd->parent->cairo,
grd->radial.x, grd->radial.y,
grd->radius,
0, 2 * M_PI);
cairo_set_source(pd->parent->cairo, pat);
cairo_fill(pd->parent->cairo);
cairo_pattern_destroy(pat);
return EINA_TRUE;
}
// Clearly duplicated and should be in a common place...
static Eina_Bool
_ector_renderer_cairo_gradient_radial_ector_renderer_cairo_op_fill(Eo *obj,
Ector_Renderer_Cairo_Gradient_Radial_Data *pd,
unsigned int mul_col)
{
Ector_Renderer_Gradient_Radial_Data *grd;
Ector_Renderer_Gradient_Data *gd;
cairo_pattern_t *pat;
grd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_RADIAL_MIXIN);
gd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_MIXIN);
if (!grd || !gd) return EINA_FALSE;
pat = _ector_renderer_cairo_gradient_radial_prepare(obj, grd, gd, mul_col);
if (!pat) return EINA_FALSE;
cairo_set_source(pd->parent->cairo, pat);
cairo_pattern_destroy(pat);
return EINA_TRUE;
}
static void
_ector_renderer_cairo_gradient_radial_efl_gfx_path_bounds_get(const Eo *obj EINA_UNUSED,
Ector_Renderer_Cairo_Gradient_Radial_Data *pd EINA_UNUSED,
Eina_Rect *r)
{
Ector_Renderer_Gradient_Radial_Data *gld;
Ector_Renderer_Cairo_Data *bd;
gld = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_RADIAL_MIXIN);
bd = efl_data_scope_get(obj, ECTOR_RENDERER_CAIRO_CLASS);
EINA_RECTANGLE_SET(r,
bd->generic->origin.x + gld->radial.x - gld->radius,
bd->generic->origin.y + gld->radial.y - gld->radius,
gld->radius * 2, gld->radius * 2);
}
static Efl_Object *
_ector_renderer_cairo_gradient_radial_efl_object_finalize(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd EINA_UNUSED)
{
Ector_Renderer_Data *base;
obj = efl_finalize(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS));
if (!obj) return NULL;
base = efl_data_scope_get(obj, ECTOR_RENDERER_CLASS);
USE(base, cairo_set_source, NULL);
USE(base, cairo_pattern_destroy, NULL);
USE(base, cairo_arc, NULL);
USE(base, cairo_fill, NULL);
USE(base, cairo_matrix_init, NULL);
USE(base, cairo_set_source, NULL);
USE(base, cairo_pattern_destroy, NULL);
USE(base, cairo_pattern_set_extend, NULL);
USE(base, cairo_pattern_set_matrix, NULL);
USE(base, cairo_pattern_create_radial, NULL);
USE(base, cairo_pattern_add_color_stop_rgba, NULL);
return obj;
}
static void
_ector_renderer_cairo_gradient_radial_efl_object_destructor(Eo *obj,
Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
{
Ector_Renderer_Data *base;
base = efl_data_scope_get(obj, ECTOR_RENDERER_CLASS);
efl_data_xunref(base->surface, pd->parent, obj);
efl_destructor(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS));
}
static void
_ector_renderer_cairo_gradient_radial_efl_gfx_gradient_stop_set(Eo *obj,
Ector_Renderer_Cairo_Gradient_Radial_Data *pd EINA_UNUSED,
const Efl_Gfx_Gradient_Stop *colors,
unsigned int length)
{
efl_gfx_gradient_stop_set(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS), colors, length);
}
static unsigned int
_ector_renderer_cairo_gradient_radial_ector_renderer_crc_get(const Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd EINA_UNUSED)
{
Ector_Renderer_Gradient_Radial_Data *grd;
Ector_Renderer_Gradient_Data *gd;
unsigned int crc;
crc = ector_renderer_crc_get(efl_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS));
grd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_RADIAL_MIXIN);
gd = efl_data_scope_get(obj, ECTOR_RENDERER_GRADIENT_MIXIN);
if (!grd || !gd) return crc;
crc = eina_crc((void*) gd->s, sizeof (Efl_Gfx_Gradient_Spread), crc, EINA_FALSE);
if (gd->colors_count)
crc = eina_crc((void*) gd->colors, sizeof (Efl_Gfx_Gradient_Stop) * gd->colors_count, crc, EINA_FALSE);
crc = eina_crc((void*) grd, sizeof (Ector_Renderer_Gradient_Radial_Data), crc, EINA_FALSE);
return crc;
}
#include "ector_renderer_cairo_gradient_radial.eo.c"