git.maemo.org Git - speedometer/blob - ui.c

   1 /****
   2         Speedometer, shows your current speed using GPS
   3         Copyright (C) 2008 Wellu Mäkinen <wellu@wellu.org>
   4
   5         This program is free software: you can redistribute it and/or modify
   6         it under the terms of the GNU General Public License as published by
   7         the Free Software Foundation, either version 3 of the License, or
   8         (at your option) any later version.
   9
  10         This program is distributed in the hope that it will be useful,
  11         but WITHOUT ANY WARRANTY; without even the implied warranty of
  12         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13         GNU General Public License for more details.
  14
  15         You should have received a copy of the GNU General Public License
  16         along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  ****/
  18
  19 #include <gtk/gtk.h>
  20
  21 #include "ui.h"
  22 #include "callbacks.h"
  23
  24 #define IMAGE_PATH "/usr/share/speedometer/%d.png"
  25
  26 static void set_widget_bg_black(GtkWidget* widget) {
  27         GdkColor black;
  28         black.red = 0x0000;
  29         black.blue = 0x0000;
  30         black.green = 0x0000;
  31         gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &black);
  32 }
  33
  34 void load_images(AppData *appdata) {
  35         g_print("Loading images\n");
  36         int i = 0;
  37         while(i < 10) {
  38                 char* path = malloc(30);
  39                 g_sprintf(path, IMAGE_PATH, i);
  40                 appdata->image_array[i] = (GtkImage*) gtk_image_new_from_file(path);
  41                 g_print(path);
  42                 g_print("\n");
  43                 free(path);
  44                 i++;
  45         }
  46 }
  47
  48 void reset_speed(AppData* appdata) {
  49
  50         GdkPixbuf* zero = gtk_image_get_pixbuf(appdata->image_array[0]);
  51
  52         appdata->speed_array[0] = (GtkImage*) gtk_image_new_from_pixbuf(zero);
  53         appdata->speed_array[1] = (GtkImage*) gtk_image_new_from_pixbuf(zero);
  54         appdata->speed_array[2] = (GtkImage*) gtk_image_new_from_pixbuf(zero);
  55 }
  56
  57 void set_nth_digit(AppData* appdata, guint n, guint value) {
  58         //assert(nth >= 0 && nth < 3);
  59
  60         GtkImage* image = appdata->speed_array[n];
  61         GdkPixbuf* buf = gtk_image_get_pixbuf(appdata->image_array[value]);
  62         gtk_image_set_from_pixbuf(image, buf);
  63         gtk_widget_queue_draw(GTK_WIDGET(appdata->speed_array[n]));
  64 }
  65
  66 guint randomize(AppData* appdata) {
  67
  68         gint32 n = g_random_int_range(0, 3);
  69         GtkImage* image = appdata->speed_array[n];
  70
  71         gint32 m = g_random_int_range(0, 10);
  72         GdkPixbuf* buf = gtk_image_get_pixbuf(appdata->image_array[m]);
  73
  74         g_print("Setting number %d to %d.. ", n+1, m);
  75
  76         gtk_image_set_from_pixbuf(image, buf);
  77         gtk_widget_queue_draw(GTK_WIDGET(appdata->speed_array[n]));
  78
  79         return TRUE;
  80 }
  81
  82 void create_ui(AppData* appdata) {
  83
  84         GtkWidget *hbox;
  85         GtkWidget *vbox;
  86
  87         vbox = gtk_vbox_new(FALSE, 0);
  88         hbox = gtk_hbox_new(TRUE, 0);
  89
  90         GtkWidget* top_e = gtk_event_box_new();
  91         GtkWidget* bottom_e = gtk_event_box_new();
  92
  93         g_signal_connect(G_OBJECT(top_e),
  94                         "button_press_event",
  95                         G_CALLBACK(top_event_box_button_press),
  96                         appdata);
  97
  98         g_signal_connect(G_OBJECT(bottom_e),
  99                         "button_press_event",
 100                         G_CALLBACK(bottom_event_box_button_press),
 101                         appdata);
 102
 103         g_signal_connect(G_OBJECT(appdata->window),
 104                         "delete_event",
 105                         G_CALLBACK(gtk_main_quit),
 106                         NULL);
 107
 108     g_signal_connect(G_OBJECT(appdata->window),
 109                 "key_press_event",
 110                 G_CALLBACK(key_press_cb),
 111                 appdata->window);
 112
 113         // add three digits to the hbox
 114         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->speed_array[0]), FALSE, FALSE, 0);
 115         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->speed_array[1]), FALSE, FALSE, 0);
 116         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->speed_array[2]), FALSE, FALSE, 0);
 117
 118         gtk_box_pack_start_defaults(GTK_BOX(vbox), top_e); // add event box on top
 119         gtk_box_pack_start_defaults(GTK_BOX(vbox), hbox); // numbers to the middle
 120         gtk_box_pack_start_defaults(GTK_BOX(vbox), bottom_e); // add event box on bottom
 121
 122         gtk_container_add(GTK_CONTAINER(appdata->window), GTK_WIDGET(vbox));
 123
 124
 125         // set backgrounds black
 126         set_widget_bg_black(GTK_WIDGET(appdata->window));
 127         set_widget_bg_black(bottom_e);
 128         set_widget_bg_black(top_e);
 129
 130 }
 131