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         g_assert(widget);
  28         GdkColor black;
  29         black.red = 0x0000;
  30         black.blue = 0x0000;
  31         black.green = 0x0000;
  32         gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &black);
  33 }
  34
  35 void load_images(AppData *appdata) {
  36         g_assert(appdata);
  37         g_print("Loading images\n");
  38         guint i = 0;
  39         while(i < 10) {
  40                 char* path = g_malloc(30);
  41                 g_sprintf(path, IMAGE_PATH, i);
  42                 appdata->image_array[i] = gtk_image_new_from_file(path);
  43                 g_print(path);
  44                 g_print("\n");
  45                 g_free(path);
  46                 i++;
  47         }
  48 }
  49
  50 void load_initial_pixbufs(AppData* appdata) {
  51         g_assert(appdata);
  52
  53         GdkPixbuf* zero = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[0]));
  54
  55         appdata->digit_array[0] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  56         appdata->digit_array[1] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  57         appdata->digit_array[2] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  58 }
  59
  60 void set_nth_digit(AppData* appdata, guint n, guint value) {
  61         g_assert(appdata);
  62         g_assert(value < 10);
  63         g_assert(n < 3);
  64
  65         GtkWidget* image = appdata->digit_array[n];
  66         GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[value]));
  67         gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
  68 }
  69
  70 void repaint_all_digits(AppData* appdata) {
  71         g_assert(appdata);
  72         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[0]));
  73         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[1]));
  74         gtk_widget_queue_draw(GTK_WIDGET(appdata->digit_array[2]));
  75 }
  76
  77 // used only in testing...
  78 void randomize(AppData* appdata) {
  79         g_assert(appdata);
  80         gint32 n = g_random_int_range(0, 3);
  81         GtkWidget* image = appdata->digit_array[n];
  82
  83         gint32 m = g_random_int_range(0, 10);
  84         GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[m]));
  85
  86         g_print("Setting number %d to %d.. ", n+1, m);
  87
  88         gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
  89         gtk_widget_queue_draw(appdata->digit_array[n]);
  90 }
  91
  92 void create_ui(AppData* appdata) {
  93         g_assert(appdata);
  94         GtkWidget *hbox;
  95         GtkWidget *vbox;
  96
  97         vbox = gtk_vbox_new(FALSE, 0);
  98         hbox = gtk_hbox_new(TRUE, 0);
  99
 100         GtkWidget* top_e = gtk_event_box_new();
 101         GtkWidget* bottom_e = gtk_event_box_new();
 102
 103         g_signal_connect(G_OBJECT(top_e),
 104                         "button_press_event",
 105                         G_CALLBACK(top_event_box_button_press),
 106                         appdata);
 107
 108         g_signal_connect(G_OBJECT(bottom_e),
 109                         "button_press_event",
 110                         G_CALLBACK(bottom_event_box_button_press),
 111                         appdata);
 112
 113         g_signal_connect(G_OBJECT(appdata->window),
 114                         "delete_event",
 115                         G_CALLBACK(gtk_main_quit),
 116                         NULL);
 117
 118     g_signal_connect(G_OBJECT(appdata->window),
 119                 "key_press_event",
 120                 G_CALLBACK(key_press_cb),
 121                 appdata->window);
 122
 123         // add three digits to the hbox
 124         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[0]), FALSE, FALSE, 0);
 125         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[1]), FALSE, FALSE, 0);
 126         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->digit_array[2]), FALSE, FALSE, 0);
 127
 128         gtk_box_pack_start_defaults(GTK_BOX(vbox), top_e); // add event box on top
 129         gtk_box_pack_start_defaults(GTK_BOX(vbox), hbox); // numbers to the middle
 130         gtk_box_pack_start_defaults(GTK_BOX(vbox), bottom_e); // add event box on bottom
 131
 132         gtk_container_add(GTK_CONTAINER(appdata->window), GTK_WIDGET(vbox));
 133
 134         // set backgrounds black
 135         set_widget_bg_black(GTK_WIDGET(appdata->window));
 136         set_widget_bg_black(bottom_e);
 137         set_widget_bg_black(top_e);
 138
 139 }
 140