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         guint i = 0;
  37         while(i < 10) {
  38                 char* path = g_malloc(30);
  39                 g_sprintf(path, IMAGE_PATH, i);
  40                 appdata->image_array[i] = gtk_image_new_from_file(path);
  41                 g_print(path);
  42                 g_print("\n");
  43                 g_free(path);
  44                 i++;
  45         }
  46 }
  47
  48 void load_initial_pixbufs(AppData* appdata) {
  49
  50         GdkPixbuf* zero = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[0]));
  51
  52         appdata->digit_array[0] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  53         appdata->digit_array[1] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  54         appdata->digit_array[2] = GTK_WIDGET(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         GtkWidget* image = appdata->digit_array[n];
  61         GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[value]));
  62         gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
  63 }
  64
  65 void repaint_all_digits(AppData* appdata) {
  66         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[0]));
  67         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[1]));
  68         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[2]));
  69 }
  70
  71 void randomize(AppData* appdata) {
  72
  73         gint32 n = g_random_int_range(0, 3);
  74         GtkWidget* image = appdata->digit_array[n];
  75
  76         gint32 m = g_random_int_range(0, 10);
  77         GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[m]));
  78
  79         g_print("Setting number %d to %d.. ", n+1, m);
  80
  81         gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
  82         gtk_widget_queue_draw(appdata->digit_array[n]);
  83 }
  84
  85 void create_ui(AppData* appdata) {
  86
  87         GtkWidget *hbox;
  88         GtkWidget *vbox;
  89
  90         vbox = gtk_vbox_new(FALSE, 0);
  91         hbox = gtk_hbox_new(TRUE, 0);
  92
  93         GtkWidget* top_e = gtk_event_box_new();
  94         GtkWidget* bottom_e = gtk_event_box_new();
  95
  96         g_signal_connect(G_OBJECT(top_e),
  97                         "button_press_event",
  98                         G_CALLBACK(top_event_box_button_press),
  99                         appdata);
 100
 101         g_signal_connect(G_OBJECT(bottom_e),
 102                         "button_press_event",
 103                         G_CALLBACK(bottom_event_box_button_press),
 104                         appdata);
 105
 106         g_signal_connect(G_OBJECT(appdata->window),
 107                         "delete_event",
 108                         G_CALLBACK(gtk_main_quit),
 109                         NULL);
 110
 111     g_signal_connect(G_OBJECT(appdata->window),
 112                 "key_press_event",
 113                 G_CALLBACK(key_press_cb),
 114                 appdata->window);
 115
 116         // add three digits to the hbox
 117         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[0]), FALSE, FALSE, 0);
 118         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[1]), FALSE, FALSE, 0);
 119         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[2]), FALSE, FALSE, 0);
 120
 121         gtk_box_pack_start_defaults(GTK_BOX(vbox), top_e); // add event box on top
 122         gtk_box_pack_start_defaults(GTK_BOX(vbox), hbox); // numbers to the middle
 123         gtk_box_pack_start_defaults(GTK_BOX(vbox), bottom_e); // add event box on bottom
 124
 125         gtk_container_add(GTK_CONTAINER(appdata->window), GTK_WIDGET(vbox));
 126
 127
 128         // set backgrounds black
 129         set_widget_bg_black(GTK_WIDGET(appdata->window));
 130         set_widget_bg_black(bottom_e);
 131         set_widget_bg_black(top_e);
 132
 133 }
 134