494 lines
14 KiB
C
494 lines
14 KiB
C
#include "evas_common.h"
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#include "evas_private.h"
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/* private magic number for line objects */
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static const char o_type[] = "line";
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/* private struct for line object internal data */
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typedef struct _Evas_Object_Line Evas_Object_Line;
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struct _Evas_Object_Line
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{
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DATA32 magic;
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struct {
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struct {
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int x1, y1, x2, y2;
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struct {
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Evas_Coord w, h;
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} object;
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} cache;
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Evas_Coord x1, y1, x2, y2;
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} cur, prev;
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void *engine_data;
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char changed : 1;
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};
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/* private methods for line objects */
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static void evas_object_line_init(Evas_Object *obj);
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static void *evas_object_line_new(void);
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static void evas_object_line_render(Evas_Object *obj, void *output, void *context, void *surface, int x, int y);
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static void evas_object_line_free(Evas_Object *obj);
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static void evas_object_line_render_pre(Evas_Object *obj);
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static void evas_object_line_render_post(Evas_Object *obj);
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static unsigned int evas_object_line_id_get(Evas_Object *obj);
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static unsigned int evas_object_line_visual_id_get(Evas_Object *obj);
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static void *evas_object_line_engine_data_get(Evas_Object *obj);
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static int evas_object_line_is_opaque(Evas_Object *obj);
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static int evas_object_line_was_opaque(Evas_Object *obj);
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static int evas_object_line_is_inside(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
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static int evas_object_line_was_inside(Evas_Object *obj, Evas_Coord x, Evas_Coord y);
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static void evas_object_line_coords_recalc(Evas_Object *obj);
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static const Evas_Object_Func object_func =
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{
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/* methods (compulsory) */
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evas_object_line_free,
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evas_object_line_render,
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evas_object_line_render_pre,
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evas_object_line_render_post,
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evas_object_line_id_get,
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evas_object_line_visual_id_get,
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evas_object_line_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_line_is_opaque,
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evas_object_line_was_opaque,
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evas_object_line_is_inside,
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evas_object_line_was_inside,
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evas_object_line_coords_recalc,
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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 rect */
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/* it has no other api calls as all properties are standard */
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/**
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* @addtogroup Evas_Line_Group
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* @{
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*/
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EVAS_MEMPOOL(_mp_obj);
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/**
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* Adds a new evas line object to the given evas.
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* @param e The given evas.
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* @return The new evas line object.
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*/
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EAPI Evas_Object *
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evas_object_line_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(e);
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evas_object_line_init(obj);
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evas_object_inject(obj, e);
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return obj;
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}
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/**
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* Sets the coordinates of the end points of the given evas line object.
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* @param obj The given evas line object.
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* @param x1 The X coordinate of the first point.
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* @param y1 The Y coordinate of the first point.
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* @param x2 The X coordinate of the second point.
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* @param y2 The Y coordinate of the second point.
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*/
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EAPI void
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evas_object_line_xy_set(Evas_Object *obj, Evas_Coord x1, Evas_Coord y1, Evas_Coord x2, Evas_Coord y2)
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{
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Evas_Object_Line *o;
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Evas_Coord min_x, max_x, min_y, max_y;
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int is, was = 0;
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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_Line *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Line, MAGIC_OBJ_LINE);
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return;
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MAGIC_CHECK_END();
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if ((x1 == o->cur.x1) && (y1 == o->cur.y1) &&
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(x2 == o->cur.x2) && (y2 == o->cur.y2)) return;
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if (obj->layer->evas->events_frozen <= 0)
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{
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if (!evas_event_passes_through(obj))
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was = evas_object_is_in_output_rect(obj,
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obj->layer->evas->pointer.x,
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obj->layer->evas->pointer.y, 1, 1);
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}
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if (x1 < x2)
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{
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min_x = x1;
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max_x = x2;
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}
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else
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{
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min_x = x2;
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max_x = x1;
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}
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if (y1 < y2)
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{
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min_y = y1;
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max_y = y2;
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}
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else
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{
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min_y = y2;
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max_y = y1;
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}
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obj->cur.geometry.x = min_x;
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obj->cur.geometry.y = min_y;
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obj->cur.geometry.w = max_x - min_x + 2;
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obj->cur.geometry.h = max_y - min_y + 2;
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//// obj->cur.cache.geometry.validity = 0;
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o->cur.x1 = x1 - min_x;
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o->cur.y1 = y1 - min_y;
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o->cur.x2 = x2 - min_x;
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o->cur.y2 = y2 - min_y;
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o->changed = 1;
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evas_object_change(obj);
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evas_object_coords_recalc(obj);
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evas_object_clip_dirty(obj);
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if (obj->layer->evas->events_frozen <= 0)
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{
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is = evas_object_is_in_output_rect(obj,
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obj->layer->evas->pointer.x,
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obj->layer->evas->pointer.y, 1, 1);
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if (!evas_event_passes_through(obj))
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{
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if ((is ^ was) && obj->cur.visible)
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evas_event_feed_mouse_move(obj->layer->evas,
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obj->layer->evas->pointer.x,
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obj->layer->evas->pointer.y,
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obj->layer->evas->last_timestamp,
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NULL);
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}
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}
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evas_object_inform_call_move(obj);
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evas_object_inform_call_resize(obj);
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}
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/**
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* Retrieves the coordinates of the end points of the given evas line object.
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* @param obj The given line object.
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* @param x1 Pointer to an integer in which to store the X coordinate of the
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* first end point.
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* @param y1 Pointer to an integer in which to store the Y coordinate of the
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* first end point.
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* @param x2 Pointer to an integer in which to store the X coordinate of the
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* second end point.
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* @param y2 Pointer to an integer in which to store the Y coordinate of the
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* second end point.
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*/
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EAPI void
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evas_object_line_xy_get(const Evas_Object *obj, Evas_Coord *x1, Evas_Coord *y1, Evas_Coord *x2, Evas_Coord *y2)
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{
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Evas_Object_Line *o;
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MAGIC_CHECK(obj, Evas_Object, MAGIC_OBJ);
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if (x1) *x1 = 0;
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if (y1) *y1 = 0;
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if (x2) *x2 = 0;
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if (y2) *y2 = 0;
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return;
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MAGIC_CHECK_END();
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o = (Evas_Object_Line *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Line, MAGIC_OBJ_LINE);
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if (x1) *x1 = 0;
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if (y1) *y1 = 0;
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if (x2) *x2 = 0;
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if (y2) *y2 = 0;
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return;
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MAGIC_CHECK_END();
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if (x1) *x1 = obj->cur.geometry.x + o->cur.x1;
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if (y1) *y1 = obj->cur.geometry.y + o->cur.y1;
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if (x2) *x2 = obj->cur.geometry.x + o->cur.x2;
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if (y2) *y2 = obj->cur.geometry.y + o->cur.y2;
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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_line_init(Evas_Object *obj)
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{
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/* alloc image ob, setup methods and default values */
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obj->object_data = evas_object_line_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.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 = &object_func;
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obj->type = o_type;
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}
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static void *
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evas_object_line_new(void)
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{
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Evas_Object_Line *o;
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/* alloc obj private data */
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EVAS_MEMPOOL_INIT(_mp_obj, "evas_object_line", Evas_Object_Line, 16, NULL);
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o = EVAS_MEMPOOL_ALLOC(_mp_obj, Evas_Object_Line);
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if (!o) return NULL;
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EVAS_MEMPOOL_PREP(_mp_obj, o, Evas_Object_Line);
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o->magic = MAGIC_OBJ_LINE;
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o->cur.x1 = 0;
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o->cur.y1 = 0;
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o->cur.x2 = 31;
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o->cur.y2 = 31;
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o->prev = o->cur;
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return o;
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}
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static void
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evas_object_line_free(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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/* frees private object data. very simple here */
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o = (Evas_Object_Line *)(obj->object_data);
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MAGIC_CHECK(o, Evas_Object_Line, MAGIC_OBJ_LINE);
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return;
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MAGIC_CHECK_END();
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/* free obj */
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o->magic = 0;
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EVAS_MEMPOOL_FREE(_mp_obj, o);
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}
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static void
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evas_object_line_render(Evas_Object *obj, void *output, void *context, void *surface, int x, int y)
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{
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Evas_Object_Line *o;
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/* render object to surface with context, and offxet by x,y */
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o = (Evas_Object_Line *)(obj->object_data);
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obj->layer->evas->engine.func->context_color_set(output,
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context,
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obj->cur.cache.clip.r,
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obj->cur.cache.clip.g,
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obj->cur.cache.clip.b,
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obj->cur.cache.clip.a);
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obj->layer->evas->engine.func->context_multiplier_unset(output,
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context);
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obj->layer->evas->engine.func->context_anti_alias_set(output, context,
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obj->cur.anti_alias);
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obj->layer->evas->engine.func->context_render_op_set(output, context,
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obj->cur.render_op);
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obj->layer->evas->engine.func->line_draw(output,
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context,
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surface,
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o->cur.cache.x1 + x,
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o->cur.cache.y1 + y,
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o->cur.cache.x2 + x,
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o->cur.cache.y2 + y);
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}
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static void
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evas_object_line_render_pre(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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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 lines */
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o = (Evas_Object_Line *)(obj->object_data);
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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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/* 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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if ((obj->cur.map != obj->prev.map) ||
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(obj->cur.usemap != obj->prev.usemap))
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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's 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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/* if we restacked (layer or just within a layer) */
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if (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 anti_alias */
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if (obj->cur.anti_alias != obj->prev.anti_alias)
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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 render op */
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if (obj->cur.render_op != obj->prev.render_op)
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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 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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{
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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 - and obviously not visibility or color */
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/* calculate differences since we have a constant color fill */
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/* we really only need to update the differences */
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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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((o->changed) &&
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((o->cur.x1 != o->prev.x1) ||
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(o->cur.y1 != o->prev.y1) ||
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(o->cur.x2 != o->prev.x2) ||
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(o->cur.y2 != o->prev.y2)))
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)
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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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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_line_render_post(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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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_Line *)(obj->object_data);
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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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o->prev = o->cur;
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o->changed = 0;
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}
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static unsigned int evas_object_line_id_get(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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o = (Evas_Object_Line *)(obj->object_data);
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if (!o) return 0;
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return MAGIC_OBJ_LINE;
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}
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static unsigned int evas_object_line_visual_id_get(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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o = (Evas_Object_Line *)(obj->object_data);
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if (!o) return 0;
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return MAGIC_OBJ_SHAPE;
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}
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static void *evas_object_line_engine_data_get(Evas_Object *obj)
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{
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Evas_Object_Line *o;
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o = (Evas_Object_Line *)(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_line_is_opaque(Evas_Object *obj __UNUSED__)
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{
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/* this returns 1 if the internal object data implies that the object is */
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/* currently fully opaque over the entire line it occupies */
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return 0;
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}
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static int
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evas_object_line_was_opaque(Evas_Object *obj __UNUSED__)
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{
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/* this returns 1 if the internal object data implies that the object was */
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/* previously fully opaque over the entire line it occupies */
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return 0;
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}
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static int
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evas_object_line_is_inside(Evas_Object *obj __UNUSED__, Evas_Coord x __UNUSED__, Evas_Coord y __UNUSED__)
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{
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/* this returns 1 if the canvas co-ordinates are inside the object based */
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/* on object private data. not much use for rects, but for polys, images */
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/* and other complex objects it might be */
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return 1;
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}
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static int
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evas_object_line_was_inside(Evas_Object *obj __UNUSED__, Evas_Coord x __UNUSED__, Evas_Coord y __UNUSED__)
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{
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/* this returns 1 if the canvas co-ordinates were inside the object based */
|
|
/* on object private data. not much use for rects, but for polys, images */
|
|
/* and other complex objects it might be */
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
evas_object_line_coords_recalc(Evas_Object *obj)
|
|
{
|
|
Evas_Object_Line *o;
|
|
|
|
o = (Evas_Object_Line *)(obj->object_data);
|
|
o->cur.cache.x1 = obj->cur.geometry.x + o->cur.x1;
|
|
o->cur.cache.y1 = obj->cur.geometry.y + o->cur.y1;
|
|
o->cur.cache.x2 = obj->cur.geometry.x + o->cur.x2;
|
|
o->cur.cache.y2 = obj->cur.geometry.y + o->cur.y2;
|
|
o->cur.cache.object.w = obj->cur.geometry.w;
|
|
o->cur.cache.object.h = obj->cur.geometry.h;
|
|
}
|