Add efacf056cd

dockerdoom/trunk/textscreen/txt_button.h

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+// Emacs style mode select   -*- C++ -*- 
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 2006 Simon Howard
+//
+// 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.
+//
+
+#ifndef TXT_BUTTON_H
+#define TXT_BUTTON_H
+
+/**
+ * @file txt_button.h
+ *
+ * Button widget.
+ */
+
+/**
+ * Button widget.
+ *
+ * A button is a widget that can be selected to perform some action.
+ * When a button is pressed, it emits the "pressed" signal.
+ */
+
+typedef struct txt_button_s txt_button_t;
+
+#include "txt_widget.h"
+
+struct txt_button_s
+{
+    txt_widget_t widget;
+    char *label;
+};
+
+/**
+ * Create a new button widget.
+ *
+ * @param label        The label to use on the new button.
+ * @return             Pointer to the new button widget.
+ */
+
+txt_button_t *TXT_NewButton(char *label);
+
+/**
+ * Create a new button widget, binding the "pressed" signal to a
+ * specified callback function.
+ *
+ * @param label        The label to use on the new button.
+ * @param func         The callback function to invoke.
+ * @param user_data    User-specified pointer to pass to the callback.
+ * @return             Pointer to the new button widget.
+ */
+
+txt_button_t *TXT_NewButton2(char *label, TxtWidgetSignalFunc func,
+                             void *user_data);
+
+/**
+ * Change the label used on a button.
+ *
+ * @param button       The button.
+ * @param label        The new label.
+ */
+
+void TXT_SetButtonLabel(txt_button_t *button, char *label);
+
+#endif /* #ifndef TXT_BUTTON_H */
+
+