rockbox/apps/plugins/clock/clock_draw_analog.c
Daniel Stenberg 2acc0ac542 Updated our source code header to explicitly mention that we are GPL v2 or
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
2008-06-28 18:10:04 +00:00

250 lines
9.1 KiB
C

/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id: jackpot.c 14034 2007-07-28 05:42:55Z kevin $
*
* Copyright (C) 2007 Copyright Kévin Ferrare based on Zakk Roberts's work
*
* 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.
*
****************************************************************************/
#include "clock_draw_analog.h"
#include "xlcd.h"
#include "fixedpoint.h"
#include "clock_bitmaps.h"
#include "clock_bitmap_strings.h"
#define ANALOG_SECOND_RADIUS(screen, round) \
ANALOG_MINUTE_RADIUS(screen, round)
#define ANALOG_MINUTE_RADIUS(screen, round) \
(round?MIN(screen->height/2 -10, screen->width/2 -10):screen->height/2)
#define ANALOG_HOUR_RADIUS(screen, round) \
(2*ANALOG_MINUTE_RADIUS(screen, round)/3)
#define HOUR_ANGLE(hour, minute, second) (30*(hour) +(minute)/2)
#define MINUTE_ANGLE(minute, second) (6*(minute)+(second)/10)
#define SECOND_ANGLE(second) (6 * (second))
/* Note that the given angle's origin is midday and not 3 o'clock */
void polar_to_cartesian(int a, int r, int* x, int* y)
{
#if CONFIG_LCD == LCD_SSD1815
/* Correct non-square pixel aspect of archos recorder LCD */
*x = (sin_int(a) * 5 / 4 * r) >> 14;
#else
*x = (sin_int(a) * r) >> 14;
#endif
*y = (sin_int(a-90) * r) >> 14;
}
void polar_to_cartesian_screen_centered(struct screen * display,
int a, int r, int* x, int* y)
{
polar_to_cartesian(a, r, x, y);
*x+=display->width/2;
*y+=display->height/2;
}
void angle_to_square(int square_width, int square_height,
int a, int* x, int* y)
{
a = (a+360-90)%360;
if(a>45 && a<=135){/* top line */
a-=45;
*x=square_width-(square_width*2*a)/90;
*y=square_height;
}else if(a>135 && a<=225){/* left line */
a-=135;
*x=-square_width;
*y=square_height-(square_height*2*a)/90;
}else if(a>225 && a<=315){/* bottom line */
a-=225;
*x=(square_width*2*a)/90-square_width;
*y=-square_height;
}else if(a>315 || a<=45){/* right line */
if(a>315)
a-=315;
else
a+=45;
*x=square_width;
*y=(square_height*2*a)/90-square_height;
}
}
void angle_to_square_screen_centered(struct screen * display,
int square_width, int square_height,
int a, int* x, int* y)
{
angle_to_square(square_width, square_height, a, x, y);
*x+=display->width/2;
*y+=display->height/2;
}
void draw_hand(struct screen* display, int angle,
int radius, int thickness, bool round)
{
int x1, y1; /* the longest */
int x2, y2, x3, y3; /* the base */
if(round){/* round clock */
polar_to_cartesian_screen_centered(display, angle, radius, &x1, &y1);
}else{/* fullscreen clock, hands describes square motions */
int square_width, square_height;
/* radius is defined smallest between width and height */
square_height=radius;
square_width=(radius*display->width)/display->height;
angle_to_square_screen_centered(
display, square_width, square_height, angle, &x1, &y1);
}
polar_to_cartesian_screen_centered(display, (angle+120)%360,
radius/40+thickness, &x2, &y2);
polar_to_cartesian_screen_centered(display, (angle+240)%360,
radius/40+thickness, &x3, &y3);
xlcd_filltriangle_screen(display, x1, y1, x2, y2, x3, y3);
rb->lcd_drawline(x1, y1, x2, y2);
rb->lcd_drawline(x1, y1, x3, y3);
}
void draw_hands(struct screen* display, int hour, int minute, int second,
int thickness, bool round, bool draw_seconds)
{
if(draw_seconds){
draw_hand(display, SECOND_ANGLE(second),
ANALOG_SECOND_RADIUS(display, round), thickness, round);
}
draw_hand(display, MINUTE_ANGLE(minute, second),
ANALOG_MINUTE_RADIUS(display, round), thickness+2, round);
draw_hand(display, HOUR_ANGLE(hour, minute, second),
ANALOG_HOUR_RADIUS(display, round), thickness+2, round);
}
void draw_counter(struct screen* display, struct counter* counter)
{
char buffer[10];
int second_str_w, hour_str_w, str_h;
const struct picture* smalldigits_bitmaps =
&(smalldigits[display->screen_type]);
struct time counter_time;
counter_get_elapsed_time(counter, &counter_time);
rb->snprintf(buffer, 10, "%02d:%02d",
counter_time.hour, counter_time.minute);
getstringsize(smalldigits_bitmaps, buffer, &hour_str_w, &str_h);
draw_string(display, smalldigits_bitmaps, buffer,
display->width-hour_str_w,
display->height-2*str_h);
rb->snprintf(buffer, 10, "%02d", counter_time.second);
getstringsize(smalldigits_bitmaps, buffer, &second_str_w, &str_h);
draw_string(display, smalldigits_bitmaps, buffer,
display->width-(hour_str_w+second_str_w)/2,
display->height-str_h);
}
void draw_date(struct screen* display, struct time* time, int date_format)
{
char buffer[10];
int year_str_w, monthday_str_w, str_h;
int year_line=date_format==JAPANESE?1:2;
int monthday_line=date_format==JAPANESE?2:1;
const struct picture* smalldigits_bitmaps =
&(smalldigits[display->screen_type]);
if(date_format==ENGLISH || date_format==JAPANESE){
rb->snprintf(buffer, 10, "%02d/%02d", time->month, time->day);
}else{
rb->snprintf(buffer, 10, "%02d/%02d", time->day, time->month);
}
/* draws month and day */
getstringsize(smalldigits_bitmaps, buffer, &monthday_str_w, &str_h);
draw_string(display, smalldigits_bitmaps, buffer,
0, display->height-year_line*str_h);
rb->snprintf(buffer, 10, "%04d", time->year);
/* draws year */
getstringsize(smalldigits_bitmaps, buffer, &year_str_w, &str_h);
draw_string(display, smalldigits_bitmaps, buffer,
(monthday_str_w-year_str_w)/2,
display->height-monthday_line*str_h);
}
void draw_border(struct screen* display, int skin)
{
/* Draws square dots every 5 minutes */
int i;
int x, y;
int size=display->height/50;/* size of the square dots */
if(size%2)/* a pair number */
size++;
for(i=0; i < 60; i+=5){
if(skin){
polar_to_cartesian_screen_centered(display, MINUTE_ANGLE(i, 0),
ANALOG_MINUTE_RADIUS(display, skin), &x, &y);
}else{
angle_to_square_screen_centered(
display, display->width/2-size/2, display->height/2-size/2,
MINUTE_ANGLE(i, 0), &x, &y);
}
display->fillrect(x-size/2, y-size/2, size, size);
}
}
void draw_hour(struct screen* display, struct time* time,
bool show_seconds, int skin)
{
int hour=time->hour;
if(hour >= 12)
hour -= 12;
/* Crappy fake antialiasing (color LCDs only)!
* how this works is we draw a large mid-gray hr/min/sec hand,
* then the actual (slightly smaller) hand on top of those.
* End result: mid-gray edges to the black hands, smooths them out. */
#ifdef HAVE_LCD_COLOR
if(display->is_color){
display->set_foreground(LCD_RGBPACK(100,110,125));
draw_hands(display, hour, time->minute, time->second,
1, skin, show_seconds);
display->set_foreground(LCD_BLACK);
}
#endif
draw_hands(display, hour, time->minute, time->second,
0, skin, show_seconds);
}
void draw_center_cover(struct screen* display)
{
display->hline((display->width/2)-1,
(display->width/2)+1, (display->height/2)+3);
display->hline((display->width/2)-3,
(display->width/2)+3, (display->height/2)+2);
display->fillrect((display->width/2)-4, (display->height/2)-1, 9, 3);
display->hline((display->width/2)-3,
(display->width/2)+3, (display->height/2)-2);
display->hline((display->width/2)-1,
(display->width/2)+1, (display->height/2)-3);
}
void analog_clock_draw(struct screen* display, struct time* time,
struct clock_settings* settings,
struct counter* counter,
int skin)
{
draw_hour(display, time, settings->analog.show_seconds, skin);
if(settings->analog.show_border)
draw_border(display, skin);
if(counter)
draw_counter(display, counter);
if(settings->analog.show_date && settings->general.date_format!=NONE)
draw_date(display, time, settings->general.date_format);
draw_center_cover(display);
}