forked from enlightenment/efl
464 lines
15 KiB
C
464 lines
15 KiB
C
#include "evas_common.h"
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#include "evas_private.h"
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/* private magic number for radial gradient objects */
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static const char rg_type[] = "radial_gradient";
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/* private struct for gradient object internal data */
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typedef struct _Evas_Object_Gradient2_Radial Evas_Object_Gradient2_Radial;
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struct _Evas_Object_Gradient2_Radial
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{
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Evas_Object_Gradient2 base;
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DATA32 magic;
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struct {
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struct {
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float cx, cy, rx, ry;
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} fill;
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} cur, prev;
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void *engine_data;
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unsigned char gradient_changed : 1;
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unsigned char changed : 1;
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};
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/* private methods for radial gradient objects */
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static void evas_object_gradient2_radial_init(Evas_Object *obj);
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static void *evas_object_gradient2_radial_new(void);
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static void evas_object_gradient2_radial_free(Evas_Object *obj);
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static void evas_object_gradient2_radial_render(Evas_Object *obj, void *output, void *context, void *surface, int x, int y);
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static void evas_object_gradient2_radial_render_pre(Evas_Object *obj);
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static void evas_object_gradient2_radial_render_post(Evas_Object *obj);
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static unsigned int evas_object_gradient2_radial_id_get(Evas_Object *obj);
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static unsigned int evas_object_gradient2_radial_visual_id_get(Evas_Object *obj);
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static void *evas_object_gradient2_radial_engine_data_get(Evas_Object *obj);
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static int evas_object_gradient2_radial_is_opaque(Evas_Object *obj);
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static int evas_object_gradient2_radial_was_opaque(Evas_Object *obj);
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static const Evas_Object_Func rg_object_func =
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{
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/* methods (compulsory) */
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evas_object_gradient2_radial_free,
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evas_object_gradient2_radial_render,
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evas_object_gradient2_radial_render_pre,
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evas_object_gradient2_radial_render_post,
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evas_object_gradient2_radial_id_get,
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evas_object_gradient2_radial_visual_id_get,
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evas_object_gradient2_radial_engine_data_get,
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/* these are optional. NULL = nothing */
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NULL,
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NULL,
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NULL,
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NULL,
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evas_object_gradient2_radial_is_opaque,
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evas_object_gradient2_radial_was_opaque,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL
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};
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/* the actual api call to add a gradient */
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/**
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* @addtogroup Evas_Object_Gradient2_Group
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* @{
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* @ingroup Evas_Object_Specific
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*/
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/**
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* Adds a gradient object to the given evas.
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* @param e The given evas.
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* @return A new evas gradient object if successful. Otherwise, @c NULL.
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*/
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EAPI Evas_Object *
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evas_object_gradient2_radial_add(Evas *e)
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{
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Evas_Object *obj;
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MAGIC_CHECK(e, Evas, MAGIC_EVAS);
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return NULL;
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MAGIC_CHECK_END();
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obj = evas_object_new();
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evas_object_gradient2_radial_init(obj);
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evas_object_inject(obj, e);
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if (obj->object_data)
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{
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Evas_Object_Gradient2_Radial *o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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o->engine_data = e->engine.func->gradient2_radial_new(e->engine.data.output);
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}
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return obj;
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}
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/**
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* Sets the center and radii of the radial gradient geometry for the object.
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*
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* Note that the gradient may extend beyond these,
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* according to its spread value - restrict, repeat, or reflect. To have
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* only one 'cycle' of the gradient drawn, the spread value must be set
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* to restrict.
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* The default values for the fill parameters is @p cx = 0, @p cy = 0,
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* @p rx = 0 and @p ry = 0.
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*
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* @param obj The given evas radial gradient object.
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* @param cx The X coordinate of the start point.
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* @param cy The Y coordinate of the start point.
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* @param rx The length of the x-cordinate radius.
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* @param ry The length of the y-coordinate radius.
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*/
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EAPI void
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evas_object_gradient2_radial_fill_set(Evas_Object *obj, float cx, float cy, float rx, float ry)
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{
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Evas_Object_Gradient2_Radial *o;
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MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
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return;
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MAGIC_CHECK_END();
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Gradient2_Radial, MAGIC_OBJ_GRADIENT_RADIAL);
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return;
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MAGIC_CHECK_END();
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if ((o->cur.fill.cx == cx) &&
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(o->cur.fill.cy == cy) &&
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(o->cur.fill.rx == rx) &&
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(o->cur.fill.ry == ry)) return;
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o->cur.fill.cx = cx;
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o->cur.fill.cy = cy;
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o->cur.fill.rx = rx;
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o->cur.fill.ry = ry;
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o->gradient_changed = 1;
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o->changed = 1;
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evas_object_change(obj);
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}
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EAPI void
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evas_object_gradient2_radial_fill_get(const Evas_Object *obj, float *cx, float *cy, float *rx, float *ry)
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{
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Evas_Object_Gradient2_Radial *o;
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MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
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if (cx) *cx = 0;
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if (cy) *cy = 0;
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if (rx) *rx = 0;
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if (ry) *ry = 0;
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return;
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MAGIC_CHECK_END();
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Gradient2_Radial, MAGIC_OBJ_GRADIENT_RADIAL);
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if (cx) *cx = 0;
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if (cy) *cy = 0;
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if (rx) *rx = 0;
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if (ry) *ry = 0;
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return;
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MAGIC_CHECK_END();
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if (cx) *cx = o->cur.fill.cx;
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if (cy) *cy = o->cur.fill.cy;
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if (rx) *rx = o->cur.fill.rx;
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if (ry) *ry = o->cur.fill.ry;
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return;
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}
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/**
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* @}
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*/
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/* all nice and private */
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static void
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evas_object_gradient2_radial_init(Evas_Object *obj)
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{
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/* alloc grad ob, setup methods and default values */
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obj->object_data = evas_object_gradient2_radial_new();
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/* set up default settings for this kind of object */
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obj->cur.color.r = 255;
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obj->cur.color.g = 255;
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obj->cur.color.b = 255;
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obj->cur.color.a = 255;
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obj->cur.geometry.x = 0;
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obj->cur.geometry.y = 0;
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obj->cur.geometry.w = 0;
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obj->cur.geometry.h = 0;
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obj->cur.layer = 0;
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obj->cur.anti_alias = 1;
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obj->cur.interpolation_color_space = EVAS_COLOR_SPACE_ARGB;
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obj->cur.render_op = EVAS_RENDER_BLEND;
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/* set up object-specific settings */
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obj->prev = obj->cur;
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/* set up methods (compulsory) */
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obj->func = &rg_object_func;
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obj->type = rg_type;
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obj->changed = 1;
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}
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static void *
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evas_object_gradient2_radial_new(void)
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{
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Evas_Object_Gradient2_Radial *o;
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Evas_Object_Gradient2 *og;
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/* alloc obj private data */
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o = calloc(1, sizeof(Evas_Object_Gradient2_Radial));
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if (!o) return NULL;
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o->magic = MAGIC_OBJ_GRADIENT_RADIAL;
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o->cur.fill.cx = 0;
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o->cur.fill.cy = 0;
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o->cur.fill.rx = 1;
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o->cur.fill.ry = 1;
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og = (Evas_Object_Gradient2 *)o;
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og->magic = MAGIC_OBJ_GRADIENT;
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og->cur.fill.transform.mxx = og->cur.fill.transform.myy = og->cur.fill.transform.mzz = 1;
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og->cur.fill.spread = EVAS_TEXTURE_REPEAT;
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og->cur.gradient_opaque = 0;
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og->prev = og->cur;
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og->gradient_changed = 1;
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o->prev = o->cur;
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o->changed = 1;
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o->gradient_changed = 1;
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return o;
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}
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static void
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evas_object_gradient2_radial_free(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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/* frees private object data. very simple here */
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Gradient2_Radial, MAGIC_OBJ_GRADIENT_RADIAL);
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return;
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MAGIC_CHECK_END();
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/* free obj */
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if (o->engine_data)
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obj->layer->evas->engine.func->gradient2_radial_free(obj->layer->evas->engine.data.output,
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o->engine_data);
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free(o);
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obj->object_data = NULL;
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}
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static void
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evas_object_gradient2_radial_render(Evas_Object *obj, void *output, void *context, void *surface, int x, int y)
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{
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Evas_Object_Gradient2_Radial *o;
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/* render object to surface with context, and offxet by x,y */
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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obj->layer->evas->engine.func->context_multiplier_unset(output, context);
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obj->layer->evas->engine.func->context_anti_alias_set(output, context, obj->cur.anti_alias);
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obj->layer->evas->engine.func->context_render_op_set(output, context, obj->cur.render_op);
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if (o->engine_data)
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{
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obj->layer->evas->engine.func->gradient2_radial_draw(output, context, surface,
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o->engine_data,
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obj->cur.geometry.x + x,
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obj->cur.geometry.y + y,
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obj->cur.geometry.w,
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obj->cur.geometry.h);
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}
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}
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static void
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evas_object_gradient2_radial_render_pre(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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Evas_Object_Gradient2 *og;
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int is_v, was_v;
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/* dont pre-render the obj twice! */
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if (obj->pre_render_done) return;
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obj->pre_render_done = 1;
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/* pre-render phase. this does anything an object needs to do just before */
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/* rendering. this could mean loading the image data, retrieving it from */
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/* elsewhere, decoding video etc. */
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/* then when this is done the object needs to figure if it changed and */
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/* if so what and where and add the appropriate redraw rectangles */
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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og = (Evas_Object_Gradient2 *)(o);
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/* if someone is clipping this obj - go calculate the clipper */
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if (obj->cur.clipper)
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{
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if (obj->cur.cache.clip.dirty)
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evas_object_clip_recalc(obj->cur.clipper);
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obj->cur.clipper->func->render_pre(obj->cur.clipper);
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}
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/* if it changed color */
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if ((obj->cur.color.r != obj->prev.color.r) ||
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(obj->cur.color.g != obj->prev.color.g) ||
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(obj->cur.color.b != obj->prev.color.b) ||
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(obj->cur.color.a != obj->prev.color.a))
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{ o->gradient_changed = 1; o->changed = 1; }
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if ((!o->gradient_changed) && ((obj->cur.cache.clip.r != obj->prev.cache.clip.r) ||
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(obj->cur.cache.clip.g != obj->prev.cache.clip.g) ||
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(obj->cur.cache.clip.b != obj->prev.cache.clip.b) ||
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(obj->cur.cache.clip.a != obj->prev.cache.clip.a)))
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{ o->gradient_changed = 1; o->changed = 1; }
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if (!o->gradient_changed && (obj->cur.interpolation_color_space != obj->prev.interpolation_color_space))
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{ o->gradient_changed = 1; o->changed = 1; }
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if (!o->changed && (obj->cur.render_op != obj->prev.render_op))
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o->changed = 1;
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// if (!o->changed && (obj->cur.anti_alias != obj->prev.anti_alias))
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// o->changed = 1;
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if (og->gradient_changed)
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{ o->gradient_changed = 1; o->changed = 1; }
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if (o->changed && o->engine_data)
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{
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obj->layer->evas->engine.func->context_render_op_set(obj->layer->evas->engine.data.output,
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obj->layer->evas->engine.data.context, obj->cur.render_op);
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obj->layer->evas->engine.func->context_multiplier_set(obj->layer->evas->engine.data.output,
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obj->layer->evas->engine.data.context,
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obj->cur.cache.clip.r, obj->cur.cache.clip.g,
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obj->cur.cache.clip.b, obj->cur.cache.clip.a);
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obj->layer->evas->engine.func->context_color_interpolation_set(obj->layer->evas->engine.data.output,
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obj->layer->evas->engine.data.context,
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obj->cur.interpolation_color_space);
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if (o->gradient_changed)
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{
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obj->layer->evas->engine.func->gradient2_radial_fill_set(obj->layer->evas->engine.data.output, o->engine_data, o->cur.fill.cx, o->cur.fill.cy, o->cur.fill.rx, o->cur.fill.ry);
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obj->layer->evas->engine.func->gradient2_fill_transform_set(obj->layer->evas->engine.data.output, o->engine_data,
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&og->cur.fill.transform);
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obj->layer->evas->engine.func->gradient2_fill_spread_set(obj->layer->evas->engine.data.output, o->engine_data,
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og->cur.fill.spread);
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obj->layer->evas->engine.func->gradient2_radial_render_pre(obj->layer->evas->engine.data.output,
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obj->layer->evas->engine.data.context,
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o->engine_data);
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}
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og->cur.gradient_opaque = obj->layer->evas->engine.func->gradient2_radial_is_opaque(obj->layer->evas->engine.data.output,
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obj->layer->evas->engine.data.context,
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o->engine_data,
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obj->cur.cache.clip.x, obj->cur.cache.clip.y,
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obj->cur.cache.clip.w, obj->cur.cache.clip.h);
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if (obj->cur.cache.clip.a != 255)
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og->cur.gradient_opaque = 0;
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}
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/* now figure what changed and add draw rects */
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/* if it just became visible or invisible */
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is_v = evas_object_is_visible(obj);
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was_v = evas_object_was_visible(obj);
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if (is_v != was_v)
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{
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evas_object_render_pre_visible_change(&obj->layer->evas->clip_changes, obj, is_v, was_v);
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goto done;
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}
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/* its not visible - we accounted for it appearing or not so just abort */
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if (!is_v) goto done;
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/* clipper changed this is in addition to anything else for obj */
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evas_object_render_pre_clipper_change(&obj->layer->evas->clip_changes, obj);
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/* gradient changed */
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if (o->changed || obj->restack)
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, obj);
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goto done;
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}
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/* if it changed geometry */
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if ((obj->cur.geometry.x != obj->prev.geometry.x) ||
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(obj->cur.geometry.y != obj->prev.geometry.y) ||
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(obj->cur.geometry.w != obj->prev.geometry.w) ||
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(obj->cur.geometry.h != obj->prev.geometry.h))
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{
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evas_object_render_pre_prev_cur_add(&obj->layer->evas->clip_changes, obj);
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goto done;
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}
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/* it obviously didn't change - add a NO obscure - this "unupdates" this */
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/* area so if there were updates for it they get wiped. don't do it if we */
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/* arent fully opaque and we are visible */
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if (evas_object_is_visible(obj) &&
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evas_object_is_opaque(obj))
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obj->layer->evas->engine.func->output_redraws_rect_del(obj->layer->evas->engine.data.output,
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obj->cur.cache.clip.x,
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obj->cur.cache.clip.y,
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obj->cur.cache.clip.w,
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obj->cur.cache.clip.h);
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done:
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evas_object_render_pre_effect_updates(&obj->layer->evas->clip_changes, obj, is_v, was_v);
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}
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static void
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evas_object_gradient2_radial_render_post(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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Evas_Object_Gradient2 *og;
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/* this moves the current data to the previous state parts of the object */
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/* in whatever way is safest for the object. also if we don't need object */
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/* data anymore we can free it if the object deems this is a good idea */
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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og = (Evas_Object_Gradient2 *)(o);
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/* remove those pesky changes */
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evas_object_clip_changes_clean(obj);
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/* move cur to prev safely for object data */
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obj->prev = obj->cur;
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obj->changed = 0;
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o->prev = o->cur;
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o->changed = 0;
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o->gradient_changed = 0;
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og->prev = og->cur;
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og->gradient_changed = 0;
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}
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static unsigned int evas_object_gradient2_radial_id_get(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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if (!o) return 0;
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return MAGIC_OBJ_GRADIENT_RADIAL;
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}
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static unsigned int evas_object_gradient2_radial_visual_id_get(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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if (!o) return 0;
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return MAGIC_OBJ_GRADIENT;
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}
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static void *evas_object_gradient2_radial_engine_data_get(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
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if (!o) return NULL;
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return o->engine_data;
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}
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static int
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evas_object_gradient2_radial_is_opaque(Evas_Object *obj)
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{
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Evas_Object_Gradient2_Radial *o;
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Evas_Object_Gradient2 *og;
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/* this returns 1 if the internal object data implies that the object is */
|
|
/* currently fully opaque over the entire region it occupies */
|
|
o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
|
|
if (!o->engine_data) return 0;
|
|
og = (Evas_Object_Gradient2 *)(o);
|
|
return og->cur.gradient_opaque;
|
|
}
|
|
|
|
static int
|
|
evas_object_gradient2_radial_was_opaque(Evas_Object *obj)
|
|
{
|
|
Evas_Object_Gradient2_Radial *o;
|
|
Evas_Object_Gradient2 *og;
|
|
|
|
/* this returns 1 if the internal object data implies that the object was */
|
|
/* currently fully opaque over the entire region it occupies */
|
|
o = (Evas_Object_Gradient2_Radial *)(obj->object_data);
|
|
if (!o->engine_data) return 0;
|
|
og = (Evas_Object_Gradient2 *)(o);
|
|
return og->prev.gradient_opaque;
|
|
}
|