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/*
winnie - an experimental window system
Copyright (C) 2013 Eleni Maria Stea
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Author: Eleni Maria Stea <elene.mst@gmail.com>
*/
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "clockface.h"
#include "winnie.h"
static void display(Window *win);
static void keyboard(Window *win, int key, bool pressed);
static void button(Window *win, int bn, bool pressed, int x, int y);
static void motion(Window *win, int x, int y);
static void timer(Window *win);
static Pixmap *clockface;
extern "C" bool
init()
{
Window *clock_win = new Window;
clock_win->set_title("clock");
clock_win->move(200, 100);
clock_win->resize(200, 200);
clock_win->set_display_callback(display);
clock_win->set_keyboard_callback(keyboard);
clock_win->set_mouse_button_callback(button);
clock_win->set_mouse_motion_callback(motion);
clock_win->set_timer_callback(timer);
clockface = new Pixmap;
clockface->set_image(gimp_clockface.width, gimp_clockface.height);
for (int i = 0; i < clockface->width * clockface->height; i++) {
clockface->pixels[i * 4] = gimp_clockface.pixel_data[i * 3];
clockface->pixels[i * 4 + 1] = gimp_clockface.pixel_data[i * 3 + 1];
clockface->pixels[i * 4 + 2] = gimp_clockface.pixel_data[i * 3 + 2];
}
wm->add_window(clock_win);
set_window_timer(clock_win, 1000, TIMER_REPEAT);
return true;
}
extern "C" void
cleanup()
{
delete clockface;
}
static void
draw_hand(Pixmap *pixmap,
int cx,
int cy,
float angle,
float length,
float width,
int r,
int g,
int b)
{
float varr_in[8]
= { 0, width / 2.0f, -width / 2.0f, 0, 0, -length, width / 2.0f, 0 };
int varr_out[8];
float matrix[2][2] = { { (float) cos(angle), (float) -sin(angle) },
{ (float) sin(angle), (float) cos(angle) } };
for (int i = 0; i < 4; i++) {
float x = varr_in[i * 2];
float y = varr_in[i * 2 + 1];
varr_out[i * 2] = matrix[0][0] * x + matrix[0][1] * y + cx;
varr_out[i * 2 + 1] = matrix[1][0] * x + matrix[1][1] * y + cy;
}
draw_polygon(pixmap, varr_out, 0, 4, r, g, b);
}
static void
display(Window *win)
{
time_t tm_sec = time(0);
struct tm *tm = localtime(&tm_sec);
Rect rect = win->get_absolute_rect();
int cx = rect.x + rect.width / 2;
int cy = rect.y + rect.height / 2;
float hr_len = rect.width * 0.25;
float min_len = rect.width * 0.4;
float sec_len = rect.width * 0.38;
float sec_angle = M_PI * (float) tm->tm_sec / 30.0f;
float min_angle = M_PI * (float) tm->tm_min / 30.0f;
float hour_angle = M_PI * (float) tm->tm_hour / 6.0f;
Pixmap *fb = get_framebuffer_pixmap();
blit(clockface->pixels,
Rect(0, 0, clockface->width, clockface->height),
fb->pixels,
get_screen_size(),
rect.x,
rect.y);
draw_hand(fb, cx, cy, hour_angle, hr_len, 16, 0, 0, 0);
draw_hand(fb, cx, cy, min_angle, min_len, 12, 64, 64, 64);
int x = (int) (sin(sec_angle) * sec_len);
int y = (int) (-cos(sec_angle) * sec_len);
draw_line(fb, cx, cy, cx + x, cy + y, 200, 64, 45);
draw_line(fb, cx + 1, cy, cx + x + 1, cy + y, 200, 64, 45);
draw_line(fb, cx, cy + 1, cx + x, cy + y + 1, 200, 64, 45);
}
static void
keyboard(Window *win, int key, bool pressed)
{
printf("WINDOW(%p) keyboard %d %s\n",
(void *) win,
key,
pressed ? "press" : "release");
}
static void
button(Window *win, int bn, bool pressed, int x, int y)
{
printf("WINDOW(%p) button %d %s\n",
(void *) win,
bn,
pressed ? "press" : "release");
}
static void
motion(Window *win, int x, int y)
{
printf("WINDOW(%p) motion %d %d\n", (void *) win, x, y);
}
static void
timer(Window *win)
{
wm->invalidate_region(win->get_absolute_rect());
}
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