2 Speedometer, shows your current speed using GPS
3 Copyright (C) 2008 Wellu Mäkinen <wellu@wellu.org>
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.
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.
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/>.
22 #include "callbacks.h"
24 #define IMAGE_PATH "/usr/share/speedometer/%d.png"
26 static void set_widget_bg_black(GtkWidget* widget) {
32 gtk_widget_modify_bg(GTK_WIDGET(widget), GTK_STATE_NORMAL, &black);
35 void load_images(AppData *appdata) {
37 g_print("Loading images\n");
40 char* path = g_malloc(30);
41 g_sprintf(path, IMAGE_PATH, i);
42 appdata->image_array[i] = gtk_image_new_from_file(path);
50 void load_initial_pixbufs(AppData* appdata) {
53 GdkPixbuf* zero = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[0]));
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));
60 void set_nth_digit(AppData* appdata, guint n, guint value) {
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);
70 void repaint_all_digits(AppData* 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]));
77 // used only in testing...
78 void randomize(AppData* appdata) {
80 gint32 n = g_random_int_range(0, 3);
81 GtkWidget* image = appdata->digit_array[n];
83 gint32 m = g_random_int_range(0, 10);
84 GdkPixbuf* buf = gtk_image_get_pixbuf(GTK_IMAGE(appdata->image_array[m]));
86 g_print("Setting number %d to %d.. ", n+1, m);
88 gtk_image_set_from_pixbuf(GTK_IMAGE(image), buf);
89 gtk_widget_queue_draw(appdata->digit_array[n]);
92 void create_ui(AppData* appdata) {
97 vbox = gtk_vbox_new(FALSE, 0);
98 hbox = gtk_hbox_new(TRUE, 0);
100 GtkWidget* top_e = gtk_event_box_new();
101 GtkWidget* bottom_e = gtk_event_box_new();
103 g_signal_connect(G_OBJECT(top_e),
104 "button_press_event",
105 G_CALLBACK(top_event_box_button_press),
108 g_signal_connect(G_OBJECT(bottom_e),
109 "button_press_event",
110 G_CALLBACK(bottom_event_box_button_press),
113 g_signal_connect(G_OBJECT(appdata->window),
115 G_CALLBACK(gtk_main_quit),
118 g_signal_connect(G_OBJECT(appdata->window),
120 G_CALLBACK(key_press_cb),
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);
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
132 gtk_container_add(GTK_CONTAINER(appdata->window), GTK_WIDGET(vbox));
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);