view src/visibility.c @ 1136:950076863b7e

Fix the tween calculation for the inbetween frames. Now, we can use primitive instead og group to defin ethe animation. Currently, it has been tested against rectangle only. We need to check others as well.
author wycc
date Tue, 21 Dec 2010 14:35:42 +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;
}