Function msInsertLabelStyle

maplabel.c:1024–1063

For MapScript, exactly the same the msInsertStyle */

/* For MapScript, exactly the same the msInsertStyle */
int msInsertLabelStyle(labelObj *label, styleObj *style, int nStyleIndex) {
    int i;

    if (!style)
    {
        msSetError(MS_CHILDERR, "Can't insert a NULL Style", "msInsertLabelStyle()");
        return -1;
    }

    /* Ensure there is room for a new style */
    if (msGrowLabelStyles(label) == NULL) {
        return -1;
    }
    /* Catch attempt to insert past end of styles array */
    else if (nStyleIndex >= label->numstyles) {
        msSetError(MS_CHILDERR, "Cannot insert style beyond index %d", "insertLabelStyle()", label->numstyles-1);
        return -1;
    }
    else if (nStyleIndex < 0) { /* Insert at the end by default */
        label->styles[label->numstyles]=style;
	MS_REFCNT_INCR(style);
        label->numstyles++;
        return label->numstyles-1;
    }
    else if (nStyleIndex >= 0 && nStyleIndex < label->numstyles) {
        /* Move styles existing at the specified nStyleIndex or greater */
        /* to a higher nStyleIndex */
        for (i=label->numstyles-1; i>=nStyleIndex; i--) {
            label->styles[i+1] = label->styles[i];
        }
        label->styles[nStyleIndex]=style;
	MS_REFCNT_INCR(style);
        label->numstyles++;
        return nStyleIndex;
    }
    else {
        msSetError(MS_CHILDERR, "Invalid nStyleIndex", "insertLabelStyle()");
        return -1;
    }
}

/**
 * Move the style up inside the array of styles.