1 files changed, 96 insertions, 0 deletions
diff --git a/aewl/button.c b/aewl/button.c
new file mode 100644
index 0000000..3112a1c
--- /dev/null
+++ b/aewl/button.c
@@ -0,0 +1,96 @@
+/*
+Copyright (c) 2003 Bruno T. C. de Oliveira
+
+LICENSE INFORMATION:
+This program 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.
+
+This program 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 this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+Copyright (c) 2002 Bruno T. C. de Oliveira
+
+INFORMAÇÕES DE LICENÇA:
+Este programa é um software de livre distribuição; você pode
+redistribuí-lo e/ou modificá-lo sob os termos da GNU General
+Public License, conforme publicado pela Free Software Foundation,
+pela versão 2 da licença ou qualquer versão posterior.
+
+Este programa é distribuído na esperança de que ele será útil
+aos seus usuários, porém, SEM QUAISQUER GARANTIAS; sem sequer
+a garantia implícita de COMERCIABILIDADE ou DE ADEQUAÇÃO A
+QUALQUER FINALIDADE ESPECÍFICA. Consulte a GNU General Public
+License para obter mais detalhes (uma cópia acompanha este
+programa, armazenada no arquivo COPYING).
+*/
+
+#include "aewl.h"
+#include "button.h"
+#include "util.h"
+#include <string.h>
+#include <stdlib.h>
+
+AewlWidget *aewl_button_create(int x, int y, int width, int shortcut,
+                               int result, const char *caption) {
+   AewlButton *b = malloc(sizeof(AewlButton));
+   if (!b) return NULL;
+   memset(b, 0, sizeof(AewlButton));
+
+   if (width <= 0) width = aewl_util_strlen_esc(caption) + 2;
+
+   aewl_widget_fill_defaults(&(b->base));
+   b->base.x = x;
+   b->base.y = y;
+   b->base.height = 1;
+   b->base.width = width;
+   b->base.focusable = true;
+   b->base.shortcut = shortcut;
+
+   b->base.fn_repaint = aewl_button_repaint;
+   b->base.fn_destroy = aewl_button_destroy;
+   b->base.fn_handlekey = aewl_button_handlekey;
+
+   b->caption = strdup(caption);
+   b->result = result;
+
+   return (AewlWidget*) b;
+}
+
+void aewl_button_destroy(AewlWidget *button) {
+   AewlButton *b = (AewlButton*) button;
+   if (b->caption) free(b->caption);
+   free(b);
+}
+
+void aewl_button_repaint(AewlWidget *button, bool focused) {
+   AewlButton *b = (AewlButton*) button;
+   int i;
+   int cx;
+
+   wattrset(b->base.win, AEWL_ATTR(button, focused, false));
+
+   /* print button background by just placing spaces */
+   wmove(b->base.win, b->base.y, b->base.x);
+   for (i = 0; i < b->base.width; i++) waddch(b->base.win, ' ');
+
+   /* center caption and print it */
+   cx = (2 * b->base.x + b->base.width - strlen(b->caption)) / 2;
+   aewl_util_mvwaddstr(b->base.win, b->base.y, cx, 
+      AEWL_ATTR(button, focused, false),
+      AEWL_ATTR(button, focused, true),
+      b->caption);
+}
+
+int aewl_button_handlekey(AewlWidget *button, int ch) {
+   AewlButton *b = (AewlButton*) button;
+   return (ch == 10 || ch == ' ') ? b->result : 0;
+}
+
+