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authorCedric BAIL <cedric@osg.samsung.com>2015-04-03 16:22:08 +0200
committerCedric BAIL <cedric@osg.samsung.com>2015-04-03 16:22:08 +0200
commit60e4edd7b9a2ac9cdba56e43e777bc9bf4fea093 (patch)
tree03519ab66f44e616aebaa4004a4e2c146029e8f1 /src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c
parentector: fix cairo linear gradient implementation. (diff)
downloadefl-60e4edd7b9a2ac9cdba56e43e777bc9bf4fea093.tar.gz
ector: start implementing radial gradient in cairo backend.
Diffstat (limited to 'src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c')
-rw-r--r--src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c101
1 files changed, 98 insertions, 3 deletions
diff --git a/src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c b/src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c
index 24800039dd..55fa5455c7 100644
--- a/src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c
+++ b/src/lib/ector/cairo/ector_renderer_cairo_gradient_radial.c
@@ -9,29 +9,124 @@
#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_rectangle)(cairo_t *cr,
+ double x, double y,
+ double width, double height) = NULL;
+static void (*cairo_pattern_add_color_stop_rgba)(cairo_pattern_t *pattern, double offset,
+ double red, double green, double blue, double alpha) = NULL;
+static void (*cairo_pattern_destroy)(cairo_pattern_t *pattern) = 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;
+ cairo_pattern_t *pat;
};
static Eina_Bool
_ector_renderer_cairo_gradient_radial_ector_renderer_generic_base_prepare(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd, Ector_Surface *s)
{
+ Ector_Renderer_Generic_Gradient_Radial_Data *grd;
+ Ector_Renderer_Generic_Gradient_Data *gd;
+ unsigned int i;
+
+ if (pd->pat) return EINA_FALSE;
+
+ grd = eo_data_scope_get(obj, ECTOR_RENDERER_GENERIC_GRADIENT_RADIAL_CLASS);
+ gd = eo_data_scope_get(obj, ECTOR_RENDERER_GENERIC_GRADIENT_CLASS);
+ if (!grd || !gd) return EINA_FALSE;
+
+ USE(obj, cairo_pattern_create_radial, EINA_FALSE);
+ USE(obj, cairo_pattern_add_color_stop_rgba, EINA_FALSE);
+
+ pd->pat = cairo_pattern_create_radial(grd->focal.x, grd->focal.y, 0,
+ grd->radial.x, grd->radial.y, grd->radius);
+ for (i = 0; i < gd->colors_count; i++)
+ cairo_pattern_add_color_stop_rgba(pd->pat, gd->colors[i].offset,
+ gd->colors[i].r, gd->colors[i].g,
+ gd->colors[i].b, gd->colors[i].a);
+
+ if (!pd->parent)
+ {
+ Eo *parent;
+
+ eo_do(obj, parent = eo_parent_get());
+ if (!parent) return EINA_FALSE;
+ pd->parent = eo_data_xref(parent, ECTOR_CAIRO_SURFACE_CLASS, obj);
+ }
+
+ return EINA_FALSE;
}
+// Clearly duplicated and should be in a common place...
static Eina_Bool
_ector_renderer_cairo_gradient_radial_ector_renderer_generic_base_draw(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd, Ector_Surface *s, Ector_Rop op, Eina_Array *clips, int x, int y)
{
+ Ector_Renderer_Generic_Gradient_Linear_Data *gld;
+
+ // FIXME: don't ignore clipping !
+ gld = eo_data_scope_get(obj, ECTOR_RENDERER_GENERIC_GRADIENT_LINEAR_CLASS);
+ if (!pd->pat || !gld || CHECK_CAIRO(pd->parent)) return EINA_FALSE;
+
+ USE(obj, cairo_rectangle, EINA_FALSE);
+
+ cairo_rectangle(pd->parent->cairo, gld->start.x - x, gld->start.y - y,
+ gld->end.x - gld->start.x, gld->end.y - gld->start.y);
+ eo_do(obj, ector_renderer_cairo_base_fill());
+ cairo_fill(pd->parent->cairo);
+
+ return EINA_TRUE;
}
+// Clearly duplicated and should be in a common place...
static Eina_Bool
-_ector_renderer_cairo_gradient_radial_ector_renderer_generic_base_done(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
+_ector_renderer_cairo_gradient_radial_ector_renderer_cairo_base_fill(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
{
+ if (!pd->pat || CHECK_CAIRO(pd->parent)) return EINA_FALSE;
+
+ USE(obj, cairo_set_source, EINA_FALSE);
+
+ cairo_set_source(pd->parent->cairo, pd->pat);
+
+ return EINA_TRUE;
}
-static Eina_Bool
-_ector_renderer_cairo_gradient_radial_ector_renderer_cairo_base_fill(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
+void
+_ector_renderer_cairo_gradient_radial_eo_base_destructor(Eo *obj,
+ Ector_Renderer_Cairo_Gradient_Radial_Data *pd)
+{
+ Eo *parent;
+
+ USE(obj, cairo_pattern_destroy, );
+
+ if (pd->pat) cairo_pattern_destroy(pd->pat);
+ pd->pat = NULL;
+
+ eo_do(obj, parent = eo_parent_get());
+ eo_data_xunref(parent, pd->parent, obj);
+
+ eo_do_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_RADIAL_CLASS, eo_destructor());
+}
+
+void
+_ector_renderer_cairo_gradient_radial_efl_graphics_gradient_stop_set(Eo *obj, Ector_Renderer_Cairo_Gradient_Radial_Data *pd, const Efl_Graphics_Gradient_Stop *colors, unsigned int length)
{
+ USE(obj, cairo_pattern_destroy, );
+
+ if (pd->pat) cairo_pattern_destroy(pd->pat);
+ pd->pat = NULL;
+
+ eo_do_super(obj, ECTOR_RENDERER_CAIRO_GRADIENT_LINEAR_CLASS,
+ efl_graphics_gradient_stop_set(colors, length));
}
#include "ector_renderer_cairo_gradient_radial.eo.c"