From 44a07609061c36a3e248a76c368a0fa697ad064d Mon Sep 17 00:00:00 2001
From: Petr Sykora <petr.sykora@gmail.com>
Date: Thu, 18 Sep 2008 23:02:16 +0200
Subject: [PATCH] widget structure preview

---
 widget.c | 28 ++++++++++++++++++++++++++++
 widget.h | 20 ++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 widget.c
 create mode 100644 widget.h

diff --git a/widget.c b/widget.c
new file mode 100644
index 0000000..ca83adc
--- /dev/null
+++ b/widget.c
@@ -0,0 +1,28 @@
+#include "widget.h"
+#include <string.h>
+
+
+int HandleEvent(TWidget *widget, char event[EVENT_LENGHT], void *data){
+	TEventHandler *eh;
+
+	eh = widget->handlers;
+	while(eh != 0){
+		if(strncmp(event, eh->event, EVENT_LENGHT) == 0)
+			return eh->handler(widget, data, eh->userdata);
+		eh = eh->next;
+	};
+
+	return 0;
+}
+
+void AddHandler(TWidget *widget char event[EVENT_LENGHT], int (*handler)(TWidget *widget, void *data, void *userdata), void *userdata){
+	TEventHandler *eh;
+
+	eh = malloc(sizeof(TEventHandler));
+	memset(eh, 0, sizeof(TEventHandler)); //TODO:check if this is valid for eh->event
+	strncpy(eh->event, event, EVENT_LENGHT);
+	eh->userdata = userdata;
+	eh->next = widget->handlers;
+	eh->handler = handler;
+	widget->handlers = eh;
+}
diff --git a/widget.h b/widget.h
new file mode 100644
index 0000000..2e137b7
--- /dev/null
+++ b/widget.h
@@ -0,0 +1,20 @@
+#ifndef __WIDGET_H_INCLUDED
+#define __WIDGET_H_INCLUDED
+#define EVENT_LENGTH 8
+
+
+typedef struct _TEventHandler{
+	char event[EVENT_LENGHT];
+	void *userdata;
+	int (*handler)(struct _TWidget *widget, void *data, void *userdata);
+	struct _TEventHandler *next;
+}TEventHandler;
+
+typedef struct _TWidget{
+	TEventHandler *handlers; //linked list of TEventHandler terminated by ->next==0
+	void *data;
+}TWidget;
+
+int HandleEvent(TWidget *widget, char event[EVENT_LENGHT], void *data);
+void AddHandler(TWidget *widgetm char event[EVENT_LENGHT], int (*handler)(TWidget *widget, void *data, void *userdata), void *userdata);
+#endif
-- 
2.11.4.GIT