view src/visibility.c @ 1399:9cebe429508c

Override the clone_from_subtree to setup the parent and children for the coord object. However, the current children is incorrect since we can not copy it from the origin tree. Instead, we need to get coord_t from the cloned group and then modify all coord objects to include correct parent, children, add_shape and clone_from_subtree.
author wycc
date Sun, 03 Apr 2011 11:51:39 +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;
}