static void rtgui_textbox_onmouse(rtgui_textbox_t *box, struct rtgui_event_mouse *event)
{
rt_size_t length;
rt_uint16_t posbak = box->position;
RT_ASSERT(box != RT_NULL);
RT_ASSERT(event != RT_NULL);
length = rt_strlen((char*)box->text);
if (event->button & RTGUI_MOUSE_BUTTON_LEFT && event->button & RTGUI_MOUSE_BUTTON_DOWN)
{
rt_int32_t x;
/* single line text */
/* set caret position */
x = event->x - RTGUI_WIDGET(box)->extent.x1;
if (x < 0)
{
box->position = 0;
}
else if (x > (length - box->first_pos) * box->font_width)
{
box->position = length - box->first_pos;
}
else
{
box->position = x / box->font_width;
}
if (box->flag & RTGUI_TEXTBOX_CARET_SHOW)
{
if (box->caret_timer != RT_NULL)
rtgui_timer_stop(box->caret_timer);
box->flag &= ~RTGUI_TEXTBOX_CARET_SHOW;
rtgui_textbox_draw_caret(box, posbak);
if (box->caret_timer != RT_NULL)
rtgui_timer_start(box->caret_timer);
}
rtgui_textbox_init_caret(box, box->position);
box->flag |= RTGUI_TEXTBOX_CARET_SHOW;
rtgui_textbox_draw_caret(box, box->position);
}
}
static rt_bool_t rtgui_textbox_onkey(struct rtgui_object *widget, rtgui_event_t *event)
{
rtgui_textbox_t *box = RTGUI_TEXTBOX(widget);
struct rtgui_event_kbd *ekbd = (struct rtgui_event_kbd *)event;
rt_size_t length;
rt_uint16_t posbak = box->position;
RT_ASSERT(box != RT_NULL);
RT_ASSERT(ekbd != RT_NULL);
/* handle the key at down time and nothing to do with up */
if (RTGUI_KBD_IS_UP(ekbd))
return RT_TRUE;
if (box->dis_length == 0)
{
rtgui_rect_t rect;
rtgui_widget_get_rect(RTGUI_WIDGET(box), &rect);
if (box->font_width == 0)
return RT_FALSE;
box->dis_length = (rtgui_rect_width(rect) - 5) / box->font_width;
}
length = rt_strlen(box->text);
if (ekbd->key == RTGUIK_DELETE)
{
/* delete latter character */
if (box->first_pos + box->position == length - 1)
{
box->text[box->first_pos + box->position] = '\0';
}
else
{
char *c;
/* remove character */
for (c = &box->text[box->first_pos + box->position]; c[1] != '\0'; c++)
*c = c[1];
*c = '\0';
}
}
else if (ekbd->key == RTGUIK_BACKSPACE)
{
/* delete front character */
if (box->position == 0)
{
if(box->first_pos > 0)
{
if(box->first_pos > box->dis_length)
{
box->first_pos -= box->dis_length;
box->position = box->dis_length;
}
else
{
box->position = box->first_pos;
box->first_pos = 0;
}
}
}
else if (box->position == length-box->first_pos)
{
box->text[box->first_pos + box->position - 1] = '\0';
box->position --;
}
else if (box->position != 0)
{
/* remove current character */
if (box->position != 0)
{
char *c;
/* remove character */
for (c = &box->text[box->position - 1]; c[1] != '\0'; c++)
*c = c[1];
*c = '\0';
}
box->position --;
}
}
else if (ekbd->key == RTGUIK_LEFT)
{
/* move to prev */
if (box->position > 0)
{
box->position --;
}
else
{
if(box->first_pos > 0)
box->first_pos -= 1;//DEBUG
}
}
else if (ekbd->key == RTGUIK_RIGHT)
{
/* move to next */
if (box->first_pos + box->position < length)
{
if(box->position < box->dis_length)
box->position ++;
else
box->first_pos += 1;//DEBUG
}
}
else if (ekbd->key == RTGUIK_HOME)
{
/* move cursor to start */
box->position = 0;
box->first_pos = 0;
}
else if (ekbd->key == RTGUIK_END)
{
/* move cursor to end */
if(length > box->dis_length)
{
box->position = box->dis_length;
box->first_pos = length - box->dis_length;
}
else
{
box->position = length;
box->first_pos = 0;
}
}
else if (ekbd->key == RTGUIK_RETURN)
{
if (box->on_enter != RT_NULL)
{
box->on_enter(box, event);
}
}
else if (ekbd->key == RTGUIK_NUMLOCK)
{
/* change numlock state */
/*
extern void update_number_lock(void);
update_number_lock();
*/
}
else
{
if (isprint(ekbd->key))
{
/* it's may print character */
/* no buffer on this line */
if (box->flag & RTGUI_TEXTBOX_DIGIT)
{
/* only input digit */
if (!isdigit(ekbd->key))
{
/* exception: '.' and '-' */
if (ekbd->key != '.' && ekbd->key != '-')return RT_FALSE;
if (ekbd->key == '.' && strchr(box->text, '.'))return RT_FALSE;
if (ekbd->key == '-')
{
if (length + 1 > box->line_length) return RT_FALSE;
if (strchr(box->text, '-'))
{
char *c;
for (c = &box->text[0]; c != &box->text[length]; c++)
*c = *(c + 1);
box->text[length] = '\0';
box->position --;
goto _exit;
}
else
{
char *c;
for (c = &box->text[length]; c != &box->text[0]; c--)
*c = *(c - 1);
box->text[0] = '-';
box->text[length + 1] = '\0';
box->position ++;
goto _exit;
}
}
}
}
if (length + 1 > box->line_length) return RT_FALSE;
if (box->first_pos + box->position <= length - 1)
{
char *c;
for (c = &box->text[length]; c != &box->text[box->first_pos + box->position]; c--)
*c = *(c - 1);
box->text[length + 1] = '\0';
}
box->text[box->first_pos + box->position] = ekbd->key;
if(box->position < box->dis_length)
box->position ++;
else
box->first_pos ++;
}
}
_exit:
if (box->flag & RTGUI_TEXTBOX_CARET_SHOW)
{
if (box->caret_timer != RT_NULL)
rtgui_timer_stop(box->caret_timer);
box->flag &= ~RTGUI_TEXTBOX_CARET_SHOW;
rtgui_textbox_draw_caret(box, posbak);/* refresh it */
if (box->caret_timer != RT_NULL)
rtgui_timer_start(box->caret_timer);
}
/* re-draw text box */
rtgui_textbox_ondraw(box);
rtgui_textbox_init_caret(box, box->position);
box->flag |= RTGUI_TEXTBOX_CARET_SHOW;
rtgui_textbox_draw_caret(box, box->position);
return RT_TRUE;
}