rockbox/apps/gui/viewport.h
Thomas Martitz 3b12634e6b Commit FS#12321 - Touchscreen: List line padding, to more easily select lines
This adds line padding to lists on touchscreens,
in order to make lists reasonably useful without huge fonts.

It's configurable:
* Automatic (default, line height calculated using a lcd dpi aware function)
* Off (status quo, line height = font height)
* X pixels (from 2 to 50 in even steps)

The automatic setting should/aims to Just Work Out Of The Box on all targets

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30773 a1c6a512-1295-4272-9138-f99709370657
2011-10-17 17:38:10 +00:00

78 lines
2.8 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2008 by Jonathan Gordon
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __VIEWPORT_H__
#define __VIEWPORT_H__
#include "config.h"
#include "lcd.h"
#include "system.h"
#include "screen_access.h"
/* return the number of text lines in the vp viewport */
int viewport_get_nb_lines(const struct viewport *vp);
#define THEME_STATUSBAR (BIT_N(0))
#define THEME_UI_VIEWPORT (BIT_N(1))
#define THEME_BUTTONBAR (BIT_N(2))
#define THEME_LANGUAGE (BIT_N(3))
#define THEME_LISTS (BIT_N(3))
#define THEME_ALL (~(0u))
#ifndef __PCTOOL__
/*
* Initialize the viewportmanager, which in turns initializes the UI vp and
* statusbar stuff
*/
void viewportmanager_init(void) INIT_ATTR;
void viewport_set_defaults(struct viewport *vp,
const enum screen_type screen);
void viewport_set_fullscreen(struct viewport *vp,
const enum screen_type screen);
int get_viewport_default_colour(enum screen_type screen, bool fgcolour);
#ifdef HAVE_LCD_BITMAP
void viewportmanager_theme_enable(enum screen_type screen, bool enable,
struct viewport *viewport);
/* Force will cause a redraw even if the theme was previously and
* currently enabled (i,e the undo doing nothing).
* Should almost always be set to false except coming out of fully skinned screens */
void viewportmanager_theme_undo(enum screen_type screen, bool force_redraw);
/* call this when a theme changed */
void viewportmanager_theme_changed(const int);
#ifdef HAVE_TOUCHSCREEN
bool viewport_point_within_vp(const struct viewport *vp,
const int x, const int y);
#endif
#else /* HAVE_LCD_CHARCELL */
#define viewportmanager_theme_changed(a)
#define viewportmanager_theme_enable(...)
#define viewportmanager_theme_undo(...)
#endif
#endif /* __PCTOOL__ */
#endif /* __VIEWPORT_H__ */