view src/visibility.c @ 1395:a768d74e5f49

Fix the svg:use. For a svg:use, it is a group which include the content it reference. It means that we can not tween it to its origin object directly. Instead, we need to ungroup it and then use the result matrix to generate the tweened transformation matrix. Therefore, we need to concate its matrix to the referenced object. Ad center object when the bbox-x is not available.
author wycc
date Sat, 02 Apr 2011 05:36:36 +0800
parents 586e50f82c1f
children
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line source

// -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 4; -*-
// vim: sw=4:ts=8:sts=4
#include <stdio.h>
#include <stdlib.h>
#include "mb_animate.h"

typedef struct _mb_visibility mb_visibility_t;

struct _mb_visibility {
    mb_action_t action;
    int visibility;
    coord_t *coord;
};

static void mb_visibility_start(mb_action_t *act,
				const mb_timeval_t *now,
				const mb_timeval_t *playing_time,
				redraw_man_t *rdman) {
    mb_visibility_t *visibility = (mb_visibility_t *)act;

    switch(visibility->visibility) {
    case VIS_VISIBLE:
	coord_show(visibility->coord);
	break;
    case VIS_HIDDEN:
	coord_hide(visibility->coord);
	break;
    }
    rdman_coord_changed(rdman, visibility->coord);
}

static void mb_visibility_step(mb_action_t *act,
			       const mb_timeval_t *now,
			       redraw_man_t *rdman) {
}

static void mb_visibility_stop(mb_action_t *act,
			       const mb_timeval_t *now,
			       redraw_man_t *rdman) {
}

static void mb_visibility_free(mb_action_t *act) {
    free(act);
}

mb_action_t *mb_visibility_new(int visib, coord_t *coord,
			       mb_word_t *word) {
    mb_visibility_t *visibility;

    visibility = (mb_visibility_t *)malloc(sizeof(mb_visibility_t));
    if(visibility == NULL)
	return NULL;

    visibility->visibility = visib;
    visibility->coord = coord;

    visibility->action.start = mb_visibility_start;
    visibility->action.step = mb_visibility_step;
    visibility->action.stop = mb_visibility_stop;
    visibility->action.free = mb_visibility_free;

    mb_word_add_action(word, (mb_action_t *)visibility);

    return (mb_action_t *)visibility;
}