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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Kevin Ferrare
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _GUI_TEXTAREA_H_
#define _GUI_TEXTAREA_H_
#include "screen_access.h"
#include "settings.h"
#include "statusbar.h"
struct text_message
{
char **message_lines;
int nb_lines;
};
/*
* Clears the area in the screen in which text can be displayed
* and sets the y margin properly
* - display : the screen structure
*/
extern void gui_textarea_clear(struct screen * display);
/*
* Updates the area in the screen in which text can be displayed
* - display : the screen structure
*/
extern void gui_textarea_update(struct screen * display);
/*
* Displays message lines on the given screen
* - display : the screen structure
* - message : the lines to display
* - ystart : the lineon which we start displaying
* returns : the number of lines effectively displayed
*/
extern int gui_textarea_put_message(struct screen * display,
struct text_message * message,
int ystart);
/*
* Compute the number of text lines the display can draw with the current font
* Also updates the char height and width
* - display : the screen structure
*/
extern void gui_textarea_update_nblines(struct screen * display);
/*
* Speak a text_message. The message's lines may be virtual pointers
* representing language / voicefont IDs (see settings.h).
*/
extern void talk_text_message(struct text_message * message, bool enqueue);
#ifdef HAVE_LCD_BITMAP
/*
* Compute the number of pixels from which text can be displayed
* - display : the screen structure
* Returns the number of pixels
*/
#define gui_textarea_get_ystart(display) \
( (global_settings.statusbar)? STATUSBAR_HEIGHT : 0)
/*
* Compute the number of pixels below which text can't be displayed
* - display : the screen structure
* Returns the number of pixels
*/
#ifdef HAS_BUTTONBAR
#define gui_textarea_get_yend(display) \
( (display)->height - ( (global_settings.buttonbar && \
(display)->has_buttonbar)? \
BUTTONBAR_HEIGHT : 0) )
#else
#define gui_textarea_get_yend(display) \
( (display)->height )
#endif /* HAS_BUTTONBAR */
#endif /* HAVE_LCD_BITMAP */
#endif /* _GUI_TEXTAREA_H_ */
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