forked from len0rd/rockbox
2acc0ac542
later. We still need to hunt down snippets used that are not. 1324 modified files... http://www.rockbox.org/mail/archive/rockbox-dev-archive-2008-06/0060.shtml git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17847 a1c6a512-1295-4272-9138-f99709370657
483 lines
16 KiB
C
483 lines
16 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) Jonathan Gordon (2006)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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#include "config.h"
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#include "stdarg.h"
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#include "string.h"
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#include "stdio.h"
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#include "kernel.h"
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#include "system.h"
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#include "screen_access.h"
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#include "font.h"
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#include "debug.h"
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#include "misc.h"
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#include "settings.h"
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#include "scrollbar.h"
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#include "lang.h"
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#include "splash.h"
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#include "action.h"
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#include "icon.h"
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#include "color_picker.h"
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/* structure for color info */
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struct rgb_pick
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{
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unsigned color; /* native color value */
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union
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{
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unsigned char rgb_val[6]; /* access to components as array */
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struct
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{
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unsigned char r; /* native red value */
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unsigned char g; /* native green value */
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unsigned char b; /* native blue value */
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unsigned char red; /* 8 bit red value */
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unsigned char green; /* 8 bit green value */
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unsigned char blue; /* 8 bit blue value */
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} __attribute__ ((__packed__)); /* assume byte packing */
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};
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};
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/* list of primary colors */
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#define SB_PRIM 0
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#define SB_FILL 1
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static const fb_data prim_rgb[][3] =
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{
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/* Foreground colors for sliders */
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{
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LCD_RGBPACK(255, 0, 0),
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LCD_RGBPACK( 0, 255, 0),
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LCD_RGBPACK( 0, 0, 255),
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},
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/* Fill colors for sliders */
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{
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LCD_RGBPACK( 85, 0, 0),
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LCD_RGBPACK( 0, 85, 0),
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LCD_RGBPACK( 0, 0, 85),
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},
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};
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/* maximum values for components */
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static const unsigned char rgb_max[3] =
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{
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LCD_MAX_RED,
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LCD_MAX_GREEN,
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LCD_MAX_BLUE
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};
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/* Unpacks the color value into native rgb values and 24 bit rgb values */
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static void unpack_rgb(struct rgb_pick *rgb)
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{
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unsigned color = _LCD_UNSWAP_COLOR(rgb->color);
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rgb->red = _RGB_UNPACK_RED(color);
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rgb->green = _RGB_UNPACK_GREEN(color);
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rgb->blue = _RGB_UNPACK_BLUE(color);
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rgb->r = _RGB_UNPACK_RED_LCD(color);
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rgb->g = _RGB_UNPACK_GREEN_LCD(color);
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rgb->b = _RGB_UNPACK_BLUE_LCD(color);
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}
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/* Packs the native rgb colors into a color value */
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static inline void pack_rgb(struct rgb_pick *rgb)
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{
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rgb->color = LCD_RGBPACK_LCD(rgb->r, rgb->g, rgb->b);
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}
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/* Returns LCD_BLACK if the color is above a threshold brightness
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else return LCD_WHITE */
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static inline unsigned get_black_or_white(const struct rgb_pick *rgb)
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{
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return (2*rgb->red + 5*rgb->green + rgb->blue) >= 1024 ?
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LCD_BLACK : LCD_WHITE;
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}
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#define MARGIN_LEFT 0 /* Left margin of screen */
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#define MARGIN_TOP 2 /* Top margin of screen */
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#define MARGIN_RIGHT 0 /* Right margin of screen */
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#define MARGIN_BOTTOM 6 /* Bottom margin of screen */
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#define SLIDER_MARGIN_LEFT 2 /* Gap to left of sliders */
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#define SLIDER_MARGIN_RIGHT 2 /* Gap to right of sliders */
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#define TITLE_MARGIN_BOTTOM 4 /* Space below title bar */
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#define SELECTOR_LR_MARGIN 0 /* Margin between ">" and text */
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#define SELECTOR_TB_MARGIN 1 /* Margin on top and bottom of selector */
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#define SWATCH_TOP_MARGIN 4 /* Space between last slider and swatch */
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#define SELECTOR_WIDTH get_icon_width(display->screen_type)
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#define SELECTOR_HEIGHT 8 /* Height of > and < bitmaps */
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/* dunno why lcd_set_drawinfo should be left out of struct screen */
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static void set_drawinfo(struct screen *display, int mode,
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unsigned foreground, unsigned background)
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{
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display->set_drawmode(mode);
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if (display->depth > 1)
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{
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display->set_foreground(foreground);
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display->set_background(background);
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}
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}
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static void draw_screen(struct screen *display, char *title,
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struct rgb_pick *rgb, int row)
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{
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unsigned text_color = LCD_BLACK;
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unsigned background_color = LCD_WHITE;
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char buf[32];
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int i, x, y;
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int text_top;
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int slider_left, slider_width;
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bool display_three_rows;
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int max_label_width;
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display->clear_display();
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if (display->depth > 1)
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{
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text_color = display->get_foreground();
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background_color = display->get_background();
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}
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/* Find out if there's enough room for three sliders or just
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enough to display the selected slider - calculate total height
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of display with three sliders present */
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display_three_rows =
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display->height >= MARGIN_TOP +
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display->char_height*4 + /* Title + 3 sliders */
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TITLE_MARGIN_BOTTOM +
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SELECTOR_TB_MARGIN*6 + /* 2 margins/slider */
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MARGIN_BOTTOM;
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/* Figure out widest label character in case they vary -
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this function assumes labels are one character */
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for (i = 0, max_label_width = 0; i < 3; i++)
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{
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buf[0] = str(LANG_COLOR_RGB_LABELS)[i];
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buf[1] = '\0';
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x = display->getstringsize(buf, NULL, NULL);
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if (x > max_label_width)
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max_label_width = x;
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}
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/* Draw title string */
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set_drawinfo(display, DRMODE_SOLID, text_color, background_color);
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display->getstringsize(title, &x, &y);
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display->putsxy((display->width - x) / 2, MARGIN_TOP, title);
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/* Get slider positions and top starting position */
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text_top = MARGIN_TOP + y + TITLE_MARGIN_BOTTOM + SELECTOR_TB_MARGIN;
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slider_left = MARGIN_LEFT + SELECTOR_WIDTH + SELECTOR_LR_MARGIN +
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max_label_width + SLIDER_MARGIN_LEFT;
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slider_width = display->width - slider_left - SLIDER_MARGIN_RIGHT -
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display->char_width*2 - SELECTOR_LR_MARGIN - SELECTOR_WIDTH -
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MARGIN_RIGHT;
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for (i = 0; i < 3; i++)
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{
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unsigned sb_flags = HORIZONTAL;
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int mode = DRMODE_SOLID;
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unsigned fg = text_color;
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unsigned bg = background_color;
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if (!display_three_rows)
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i = row;
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if (i == row)
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{
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set_drawinfo(display, DRMODE_SOLID, text_color,
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background_color);
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if (global_settings.cursor_style != 0)
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{
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/* Draw solid bar selection bar */
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display->fillrect(0,
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text_top - SELECTOR_TB_MARGIN,
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display->width,
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display->char_height +
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SELECTOR_TB_MARGIN*2);
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if (display->depth < 16)
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{
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sb_flags |= FOREGROUND | INNER_FILL;
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mode |= DRMODE_INVERSEVID;
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}
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}
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else if (display_three_rows)
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{
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/* Draw "> <" around sliders */
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int top = text_top + (display->char_height -
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SELECTOR_HEIGHT) / 2;
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screen_put_iconxy(display, MARGIN_LEFT, top, Icon_Cursor);
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screen_put_iconxy(display,
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display->width - MARGIN_RIGHT -
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get_icon_width(display->screen_type),
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top, Icon_Cursor);
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}
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if (display->depth >= 16)
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{
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sb_flags |= FOREGROUND | INNER_BGFILL;
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mode = DRMODE_FG;
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fg = prim_rgb[SB_PRIM][i];
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bg = prim_rgb[SB_FILL][i];
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}
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}
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set_drawinfo(display, mode, fg, bg);
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/* Draw label */
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buf[0] = str(LANG_COLOR_RGB_LABELS)[i];
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buf[1] = '\0';
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display->putsxy(slider_left - display->char_width -
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SLIDER_MARGIN_LEFT, text_top, buf);
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/* Draw color value */
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snprintf(buf, 3, "%02d", rgb->rgb_val[i]);
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display->putsxy(slider_left + slider_width + SLIDER_MARGIN_RIGHT,
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text_top, buf);
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/* Draw scrollbar */
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gui_scrollbar_draw(display,
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slider_left,
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text_top + display->char_height / 4,
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slider_width,
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display->char_height / 2,
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rgb_max[i],
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0,
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rgb->rgb_val[i],
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sb_flags);
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/* Advance to next line */
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text_top += display->char_height + 2*SELECTOR_TB_MARGIN;
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if (!display_three_rows)
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break;
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} /* end for */
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/* Draw color value in system font */
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display->setfont(FONT_SYSFIXED);
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/* Format RGB: #rrggbb */
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snprintf(buf, sizeof(buf), str(LANG_COLOR_RGB_VALUE),
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rgb->red, rgb->green, rgb->blue);
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if (display->depth >= 16)
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{
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/* Display color swatch on color screens only */
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int left = MARGIN_LEFT + SELECTOR_WIDTH + SELECTOR_LR_MARGIN;
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int top = text_top + SWATCH_TOP_MARGIN;
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int width = display->width - left - SELECTOR_LR_MARGIN -
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SELECTOR_WIDTH - MARGIN_RIGHT;
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int height = display->height - top - MARGIN_BOTTOM;
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/* Only draw if room */
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if (height >= display->char_height + 2)
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{
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display->set_foreground(rgb->color);
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display->fillrect(left, top, width, height);
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/* Draw RGB: #rrggbb in middle of swatch */
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display->set_drawmode(DRMODE_FG);
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display->getstringsize(buf, &x, &y);
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display->set_foreground(get_black_or_white(rgb));
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x = left + (width - x) / 2;
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y = top + (height - y) / 2;
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display->putsxy(x, y, buf);
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display->set_drawmode(DRMODE_SOLID);
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/* Draw border */
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display->set_foreground(text_color);
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display->drawrect(left, top, width, height);
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}
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}
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else
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{
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/* Display RGB value only centered on remaining display if room */
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display->getstringsize(buf, &x, &y);
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i = text_top + SWATCH_TOP_MARGIN;
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if (i + y <= display->height - MARGIN_BOTTOM)
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{
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set_drawinfo(display, DRMODE_SOLID, text_color, background_color);
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x = (display->width - x) / 2;
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y = (i + display->height - MARGIN_BOTTOM - y) / 2;
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display->putsxy(x, y, buf);
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}
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}
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display->setfont(FONT_UI);
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display->update();
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/* Be sure screen mode is reset */
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set_drawinfo(display, DRMODE_SOLID, text_color, background_color);
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}
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#ifdef HAVE_TOUCHPAD
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static int touchpad_slider(struct rgb_pick *rgb, int *selected_slider)
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{
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short x,y;
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int text_top,i,x1;
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int slider_left, slider_width;
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unsigned button = action_get_touchpad_press(&x, &y);
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bool display_three_rows;
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int max_label_width;
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struct screen *display = &screens[SCREEN_MAIN];
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int pressed_slider;
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char buf[2];
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if (button == BUTTON_NONE)
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return ACTION_NONE;
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/* same logic as draw_screen */
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/* Figure out widest label character in case they vary -
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this function assumes labels are one character */
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for (i = 0, max_label_width = 0; i < 3; i++)
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{
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buf[0] = str(LANG_COLOR_RGB_LABELS)[i];
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buf[1] = '\0';
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x1 = display->getstringsize(buf, NULL, NULL);
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if (x1 > max_label_width)
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max_label_width = x1;
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}
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/* Get slider positions and top starting position */
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text_top = MARGIN_TOP + display->char_height + TITLE_MARGIN_BOTTOM + SELECTOR_TB_MARGIN;
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slider_left = MARGIN_LEFT + SELECTOR_WIDTH + SELECTOR_LR_MARGIN +
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max_label_width + SLIDER_MARGIN_LEFT;
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slider_width = display->width - slider_left - SLIDER_MARGIN_RIGHT -
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display->char_width*2 - SELECTOR_LR_MARGIN - SELECTOR_WIDTH -
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MARGIN_RIGHT;
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display_three_rows =
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display->height >= MARGIN_TOP +
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display->char_height*4 + /* Title + 3 sliders */
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TITLE_MARGIN_BOTTOM +
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SELECTOR_TB_MARGIN*6 + /* 2 margins/slider */
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MARGIN_BOTTOM;
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if (y < MARGIN_TOP+display->char_height)
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{
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if (button == BUTTON_REL)
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return ACTION_STD_CANCEL;
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}
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y -= text_top;
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pressed_slider = y/display->char_height;
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if (pressed_slider > (display_three_rows?2:0))
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{
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if (button == BUTTON_REL)
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return ACTION_STD_OK;
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}
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if (pressed_slider != *selected_slider)
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*selected_slider = pressed_slider;
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if (x < slider_left+slider_width &&
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x > slider_left)
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{
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x -= slider_left;
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rgb->rgb_val[pressed_slider] =
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(x*rgb_max[pressed_slider]/(slider_width-slider_left));
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pack_rgb(rgb);
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}
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return ACTION_NONE;
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}
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#endif
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/***********
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set_color
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returns true if USB was inserted, false otherwise
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color is a pointer to the colour (in native format) to modify
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set banned_color to -1 to allow all
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***********/
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bool set_color(struct screen *display, char *title, unsigned *color,
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unsigned banned_color)
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{
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int exit = 0, slider = 0;
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struct rgb_pick rgb;
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rgb.color = *color;
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while (!exit)
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{
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int button;
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unpack_rgb(&rgb);
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if (display != NULL)
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{
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draw_screen(display, title, &rgb, slider);
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}
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else
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{
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int i;
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FOR_NB_SCREENS(i)
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draw_screen(&screens[i], title, &rgb, slider);
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}
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button = get_action(CONTEXT_SETTINGS_COLOURCHOOSER, TIMEOUT_BLOCK);
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#ifdef HAVE_TOUCHPAD
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if (button == ACTION_TOUCHPAD)
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button = touchpad_slider(&rgb, &slider);
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#endif
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switch (button)
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{
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case ACTION_STD_PREV:
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case ACTION_STD_PREVREPEAT:
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slider = (slider + 2) % 3;
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break;
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case ACTION_STD_NEXT:
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case ACTION_STD_NEXTREPEAT:
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slider = (slider + 1) % 3;
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break;
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case ACTION_SETTINGS_INC:
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case ACTION_SETTINGS_INCREPEAT:
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if (rgb.rgb_val[slider] < rgb_max[slider])
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rgb.rgb_val[slider]++;
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pack_rgb(&rgb);
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break;
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case ACTION_SETTINGS_DEC:
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case ACTION_SETTINGS_DECREPEAT:
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if (rgb.rgb_val[slider] > 0)
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rgb.rgb_val[slider]--;
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pack_rgb(&rgb);
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break;
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case ACTION_STD_OK:
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if (banned_color != (unsigned)-1 &&
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banned_color == rgb.color)
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{
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gui_syncsplash(HZ*2, ID2P(LANG_COLOR_UNACCEPTABLE));
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break;
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}
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*color = rgb.color;
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exit = 1;
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break;
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case ACTION_STD_CANCEL:
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exit = 1;
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break;
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default:
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if (default_event_handler(button) == SYS_USB_CONNECTED)
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return true;
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break;
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}
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}
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return false;
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}
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