f3b015f73b
Add two new line selector types: solid colour and gradient. Solid colour only uses the primary colour setting. The secondary colour setting is used for the gradient. Text colour for the selected item is also changeable. These new settings are a bit controversial so they may be removed later. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14868 a1c6a512-1295-4272-9138-f99709370657
96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2007 Michael Sevakis
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*
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* LCD scrolling driver and scheduler
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*
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* Much collected and combined from the various Rockbox LCD drivers.
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __SCROLL_ENGINE_H__
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#define __SCROLL_ENGINE_H__
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void scroll_init(void);
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void lcd_scroll_fn(void);
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void lcd_remote_scroll_fn(void);
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/* internal usage, but in multiple drivers */
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#define SCROLL_SPACING 3
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#ifdef HAVE_LCD_BITMAP
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#define SCROLL_LINE_SIZE (MAX_PATH + SCROLL_SPACING + 3*LCD_WIDTH/2 + 2)
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#else
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#define SCROLL_LINE_SIZE (MAX_PATH + SCROLL_SPACING + 3*LCD_WIDTH + 2)
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#endif
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struct scrollinfo
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{
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char line[SCROLL_LINE_SIZE];
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int len; /* length of line in chars */
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int offset;
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int startx;
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#ifdef HAVE_LCD_BITMAP
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int width; /* length of line in pixels */
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#ifdef HAVE_LCD_COLOR
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int invert; /* invert the scrolled text */
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#else
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bool invert;
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#endif
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#endif/* HAVE_LCD_BITMAP */
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bool backward; /* scroll presently forward or backward? */
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bool bidir;
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long start_tick;
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#ifdef HAVE_LCD_COLOR
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int line_color;
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#endif
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};
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struct scroll_screen_info
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{
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struct scrollinfo * const scroll;
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const int num_scroll; /* number of scrollable lines (also number of scroll structs) */
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int lines; /* Bitpattern of which lines are scrolling */
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long ticks; /* # of ticks between updates*/
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long delay; /* ticks delay before start */
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int bidir_limit; /* percent */
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#ifdef HAVE_LCD_CHARCELLS
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long jump_scroll_delay; /* delay between jump scroll jumps */
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int jump_scroll; /* 0=off, 1=once, ..., JUMP_SCROLL_ALWAYS */
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#endif
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#if defined(HAVE_LCD_BITMAP) || defined(HAVE_REMOTE_LCD)
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int step; /* pixels per scroll step */
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#endif
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#if defined(HAVE_REMOTE_LCD)
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long last_scroll;
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#endif
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};
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/** main lcd **/
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#ifdef HAVE_LCD_BITMAP
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#define LCD_SCROLLABLE_LINES ((LCD_HEIGHT+4)/5 < 32 ? (LCD_HEIGHT+4)/5 : 32)
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#else
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#define LCD_SCROLLABLE_LINES LCD_HEIGHT
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#endif
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extern struct scroll_screen_info lcd_scroll_info;
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/** remote lcd **/
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#ifdef HAVE_REMOTE_LCD
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#define LCD_REMOTE_SCROLLABLE_LINES \
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(((LCD_REMOTE_HEIGHT+4)/5 < 32) ? (LCD_REMOTE_HEIGHT+4)/5 : 32)
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extern struct scroll_screen_info lcd_remote_scroll_info;
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#endif
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#endif /* __SCROLL_ENGINE_H__ */
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