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/*
* widgets.c
*
* Copyright (C) 2006 Simon Wunderlich <dotslash@packetmixer.de>
*
* This file is part of s3d, a 3d network display server.
* See http://s3d.berlios.de/ for more updates.
*
* s3d is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* s3d is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with s3d; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <s3d.h>
#include <s3dw.h>
#include <stdio.h> /* NULL */
#include <time.h> /* nanosleep() */
#include <stdlib.h> /* free() */
#include <string.h> /* strlen() */
#define S3DUNUSED(x) x
static s3dw_surface *surface;
static s3dw_input *input;
static struct timespec t = {
0, 33*1000*1000
}; /* 33 mili seconds */
static void mainloop(void)
{
/* keep this in your mainloop. this will do smooth animations for you ... */
s3dw_ani_mate();
nanosleep(&t, NULL);
}
/* you should always put the s3dw-handler in your own event handler,
* if you want s3dw to react on clicks or keys ... and i'm sure you
* want that ... */
static int click(struct s3d_evt *evt)
{
return(s3dw_handle_click(evt));
}
static void key_button(s3dw_widget *button)
{
s3dw_delete(button->parent); /* parent =surface. this means close containing window */
}
static int key(struct s3d_evt *evt)
{
struct s3d_key_event *key = (struct s3d_key_event *)evt->buf;
char string[8];
s3dw_surface *miniwin;
s3dw_button *button;
s3dw_handle_key(evt);
/* okay, that's a little bit insane ... ;)
* we create some little windows with the actual key pressed. */
if (key->unicode != 0) {
miniwin = s3dw_surface_new("Key", 6, 6);
sprintf(string, "%c", key->unicode);
s3dw_label_new(miniwin, string, 1, 2);
button = s3dw_button_new(miniwin, "OK", 2, 4);
/* clicking on the button will exit ... */
button->onclick = key_button;
/* of couse, show it */
s3dw_show(S3DWIDGET(miniwin));
}
return(0);
}
static void done_button(s3dw_widget *S3DUNUSED(dummy))
{
s3d_quit();
}
static void okay_button(s3dw_widget *S3DUNUSED(dummy))
{
s3dw_button *button;
char string[32];
char *age;
/* get the input of the text ... before its destroyed, of course*/
age = s3dw_input_gettext(input);
/* delete the old surface with it subwidgets */
s3dw_delete(S3DWIDGET(surface));
/* and create a new one ... */
surface = s3dw_surface_new("Ah!", 10, 7);
/* just cutting the string if it's too long */
if (strlen(age) > 8) age[8] = 0;
/* assemble the string ..*/
sprintf(string, "I see, %s!!", age);
s3dw_label_new(surface, string, 1, 2);
button = s3dw_button_new(surface, "Great", 4, 4);
/* clicking on the button will exit ... */
button->onclick = done_button;
/* of couse, show it */
s3dw_show(S3DWIDGET(surface));
/* we don't need it anymore. always free strings, don't leak around */
free(age);
}
static void no_button(s3dw_widget *S3DUNUSED(dummy))
{
s3dw_button *button;
s3dw_delete(S3DWIDGET(surface));
surface = s3dw_surface_new("Well ...", 10, 7);
s3dw_label_new(surface, "If you don't want to tell me ...", 1, 2);
button = s3dw_button_new(surface, "Bye", 4, 4);
/* clicking on the button will exit ... */
button->onclick = done_button;
/* of couse, show it */
s3dw_show(S3DWIDGET(surface));
}
static const char *text = "okay\nn2\n3\nfooobarfooobar ...\noh no\n its too loooong\n";
int main(int argc, char **argv)
{
s3dw_button *button;
if (!s3d_init(&argc, &argv, "widgettest")) {
s3d_set_callback(S3D_EVENT_OBJ_CLICK, click);
s3d_set_callback(S3D_EVENT_KEY, key);
s3d_set_callback(S3D_EVENT_OBJ_INFO, s3dw_object_info);
/* this creates the "window" */
surface = s3dw_surface_new("Hello World", 20, 20);
/* put a label (which is simply text) at position x=1, y=2 */
s3dw_label_new(surface, "How old are you?", 1, 2);
/* put an input box right below. we grab the pointer because we want to focus it (need for reference) */
input = s3dw_input_new(surface, 8, 1, 4);
/* we want the input-field be focused on our widget */
s3dw_focus(S3DWIDGET(input));
/* create the okay button */
button = s3dw_button_new(surface, "OK", 1, 7);
/* define the callback when the button is clicked. in our case, okay_button() will handle the event */
button->onclick = okay_button;
/* another button */
button = s3dw_button_new(surface, "Won't tell you", 10, 7);
/* we will tell him how sad we are ... */
button->onclick = no_button;
/* create some textbox at (1,10) widh width 18 and height 8 */
s3dw_textbox_new(surface, text, 1, 10, 18, 8);
/* this widget is focused (of course, it's our only one ... */
s3dw_focus(S3DWIDGET(surface));
/* show it. without showing, things would be boring... */
s3dw_show(S3DWIDGET(surface));
s3d_mainloop(mainloop);
s3d_quit();
}
return(0);
}
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