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 #include <glib/gprintf.h>
  21
  22 #include "ui.h"
  23 #include "callbacks.h"
  24
  25 #define IMAGE_PATH "/usr/share/speedometer/%d.png"
  26
  27 static void set_widget_bg_black(GtkWidget* widget) {
  28         g_assert(widget);
  29         GdkColor black;
  30         black.red = 0x0000;
  31         black.blue = 0x0000;
  32         black.green = 0x0000;
  33         gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &black);
  34 }
  35
  36 void load_graphix(AppData *appdata) {
  37         g_assert(appdata);
  38         g_print("Loading images\n");
  39         guint i = 0;
  40         while(i < 10) {
  41                 char* path = g_malloc(30);
  42                 g_sprintf(path, IMAGE_PATH, i);
  43                 appdata->graphix[i] = gtk_image_new_from_file(path);
  44                 g_print(path);
  45                 g_print("\n");
  46                 g_free(path);
  47                 i++;
  48         }
  49 }
  50
  51 void load_initial_pixbufs(AppData* appdata) {
  52         g_assert(appdata);
  53
  54         GdkPixbuf* zero = gtk_image_get_pixbuf(GTK_IMAGE(appdata->graphix[0]));
  55
  56         appdata->big_digits[0] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  57         appdata->big_digits[1] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  58         appdata->big_digits[2] = GTK_WIDGET(gtk_image_new_from_pixbuf(zero));
  59 }
  60
  61 void set_nth_digit(AppData* appdata, guint n, guint value) {
  62         g_assert(appdata);
  63         g_assert(value < 10);
  64         g_assert(n < 3);
  65
  66         GtkWidget* image = appdata->big_digits[n];
  67         GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->graphix[value]));
  68         gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
  69 }
  70
  71 void repaint_all_digits(AppData* appdata) {
  72         g_assert(appdata);
  73         gtk_widget_queue_draw(GTK_WIDGET(appdata->big_digits[0]));
  74         gtk_widget_queue_draw(GTK_WIDGET(appdata->big_digits[1]));
  75         gtk_widget_queue_draw(GTK_WIDGET(appdata->big_digits[2]));
  76 }
  77
  78 void create_ui(AppData* appdata) {
  79         g_assert(appdata);
  80
  81         appdata->unit = 1; // by default use km/h display
  82
  83         GtkWidget *hbox;
  84         GtkWidget *vbox;
  85
  86         vbox = gtk_vbox_new(FALSE, 0);
  87         hbox = gtk_hbox_new(TRUE, 0);
  88
  89         GtkWidget* top_e = gtk_event_box_new();
  90         GtkWidget* bottom_e = gtk_event_box_new();
  91
  92         g_signal_connect(G_OBJECT(top_e),
  93                         "button_press_event",
  94                         G_CALLBACK(top_event_box_button_press),
  95                         appdata);
  96
  97         g_signal_connect(G_OBJECT(bottom_e),
  98                         "button_press_event",
  99                         G_CALLBACK(bottom_event_box_button_press),
 100                         appdata);
 101
 102         g_signal_connect(G_OBJECT(appdata->window),
 103                         "delete_event",
 104                         G_CALLBACK(gtk_main_quit),
 105                         NULL);
 106
 107     g_signal_connect(G_OBJECT(appdata->window),
 108                 "key_press_event",
 109                 G_CALLBACK(key_press_cb),
 110                 appdata->window);
 111
 112         // add three digits to the hbox
 113         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->big_digits[0]), FALSE, FALSE, 0);
 114         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->big_digits[1]), FALSE, FALSE, 0);
 115         gtk_box_pack_start(GTK_BOX(hbox), GTK_WIDGET(appdata->big_digits[2]), FALSE, FALSE, 0);
 116
 117         gtk_box_pack_start_defaults(GTK_BOX(vbox), top_e); // add event box on top
 118         gtk_box_pack_start_defaults(GTK_BOX(vbox), hbox); // numbers to the middle
 119         gtk_box_pack_start_defaults(GTK_BOX(vbox), bottom_e); // add event box on bottom
 120
 121         gtk_container_add(GTK_CONTAINER(appdata->window), GTK_WIDGET(vbox));
 122
 123         // set backgrounds black
 124         set_widget_bg_black(GTK_WIDGET(appdata->window));
 125         set_widget_bg_black(bottom_e);
 126         set_widget_bg_black(top_e);
 127
 128 }
 129