Initial push

[shermanaquarium] / sherman-aquarium / shermans / leds.c

diff --git a/sherman-aquarium/shermans/leds.c b/sherman-aquarium/shermans/leds.c
new file mode 100644 (file)
index 0000000..c448014
--- /dev/null
+++ b/sherman-aquarium/shermans/leds.c
@@ -0,0 +1,191 @@
+
+
+#include <X11/XKBlib.h>
+#include <stdio.h>
+#include "leds.h"
+#include "aquarium.h"
+#include "draw.h"
+
+static SA_Image *led_images = NULL;
+static int num_led_images = 0;
+static Leds_settings leds_settings;
+static AquariumData *ad;
+
+Leds_settings *leds_get_settings_ptr(void)
+{
+    return &leds_settings;
+}
+
+/*
+  Returns the turned on leds:
+  Bit 0 is Capslock
+  Bit 1 is Numlock
+  Bit 2 is Scrollock
+*/
+
+/*
+  This code is based upon some lines(actually two lines :-) 
+  in E-Leds by Mathias Meisfjordskar<mathiasm@ifi.uio.no>
+  Released under GPL.
+*/
+
+static int check_kleds(void)
+{
+    unsigned int states;
+
+    if (XkbGetIndicatorState(GDK_DISPLAY(), XkbUseCoreKbd, &states) != Success) {
+       perror("Error while reading Indicator status\n");
+       return -1;
+    }
+    return (states & 0x7);
+}
+
+static int get_capslock(void)
+{
+    if((check_kleds() & 1) == 1) return 1;
+    else return 0;
+}
+
+static int get_numlock(void)
+{
+    if((check_kleds() & 2) == 2) return 1;
+    else return 0;
+}
+
+static int get_scrollock(void)
+{
+    if((check_kleds() & 4) == 4) return 1;
+    else return 0;
+}
+
+
+static void do_led(int func, int colour, int show_off, int x, int y, int alpha)
+{
+    int is_on;
+    
+    switch(func){
+    case LEDS_OFF:
+       return;
+    case LEDS_CAPSLOCK:
+       is_on = get_capslock();
+       break;
+    case LEDS_NUMLOCK:
+       is_on = get_numlock();
+       break;
+    case LEDS_SCROLLOCK:
+       is_on = get_scrollock();
+       break;
+    default:
+       is_on=0;
+       break;
+    }
+    
+    
+    if((!is_on && show_off) || is_on)
+       draw_pic_alpha(led_images[colour].image,
+                      led_images[colour].width,
+                      led_images[colour].height,
+                      x, y, !is_on, alpha);
+
+}
+
+void leds_exit(void)
+{
+    int i;
+
+    if(led_images == NULL) 
+       return;
+
+    for(i = 0; i < num_led_images; i++){
+       if(led_images[i].image != NULL)
+           g_object_unref(led_images[i].pixbuf);
+    }
+
+    g_free(led_images);
+    led_images = NULL;
+    num_led_images = 0;
+
+}
+
+void leds_init(void)
+{
+    int i;
+    char *led_files[] = {
+    "leds/blue.png",
+    "leds/bluegreen.png",
+    "leds/orange.png",
+    "leds/red.png",
+    "leds/violet.png",
+    "leds/yellow.png",
+    "leds/pink.png",
+    "leds/green.png",
+    "leds/darkblue.png",
+    "leds/lightblue.png",
+    "leds/yellowgreen.png",
+    NULL};
+
+    ad = aquarium_get_settings_ptr();
+
+    if(led_images != NULL)
+       leds_exit();
+
+    for(num_led_images=0; led_files[num_led_images] != NULL; num_led_images++);
+
+    led_images = g_malloc0(sizeof(SA_Image) * num_led_images);
+
+    for(i = 0; i < num_led_images; i++)
+       load_image(led_files[i], &led_images[i], 2);
+}
+
+
+
+
+
+void leds_update(int beforeorafter)
+{
+    int numleds=0;
+    int x = 2, y = 2, i;
+
+    if(beforeorafter != leds_settings.draw)
+       return;
+
+    for(i = 0; i < 3 ; i++)
+       if(leds_settings.leds_func[i] != LEDS_OFF)
+           numleds++;
+
+    switch(leds_settings.horz){
+    case LEFT:
+       x = 2;
+       break;
+    case RIGHT:
+       x = ad->xmax-numleds * led_images[0].width - 2;
+       break;
+    case CENTER:
+       x = (ad->xmax-numleds * led_images[0].width) / 2;
+       break;
+    default:
+       break;
+    }
+
+    switch(leds_settings.vert){
+    case TOP:
+       y = 2;
+       break;
+    case BOTTOM:
+       y = ad->ymax-numleds * led_images[0].height - 2;
+       break;
+    case CENTER:
+       y = (ad->ymax-numleds * led_images[0].height) / 2;
+       break;
+    default:
+       break;
+    }
+
+    for(i = 0; i < NUMLEDS; i++)
+       do_led(leds_settings.leds_func[i], 
+              leds_settings.leds_colour[i],
+              leds_settings.leds_show_off[i], 
+              x + !leds_settings.vert_horz * led_images[0].width * i, 
+              y + leds_settings.vert_horz * led_images[0].height * i, leds_settings.alpha);
+
+}