another UI attempt, I guess.

sorry.

src/libui_sdl/libui/unix/button.c

@@ -0,0 +1,55 @@
+// 10 june 2015
+#include "uipriv_unix.h"
+
+struct uiButton {
+	uiUnixControl c;
+	GtkWidget *widget;
+	GtkButton *button;
+	void (*onClicked)(uiButton *, void *);
+	void *onClickedData;
+};
+
+uiUnixControlAllDefaults(uiButton)
+
+static void onClicked(GtkButton *button, gpointer data)
+{
+	uiButton *b = uiButton(data);
+
+	(*(b->onClicked))(b, b->onClickedData);
+}
+
+static void defaultOnClicked(uiButton *b, void *data)
+{
+	// do nothing
+}
+
+char *uiButtonText(uiButton *b)
+{
+	return uiUnixStrdupText(gtk_button_get_label(b->button));
+}
+
+void uiButtonSetText(uiButton *b, const char *text)
+{
+	gtk_button_set_label(b->button, text);
+}
+
+void uiButtonOnClicked(uiButton *b, void (*f)(uiButton *, void *), void *data)
+{
+	b->onClicked = f;
+	b->onClickedData = data;
+}
+
+uiButton *uiNewButton(const char *text)
+{
+	uiButton *b;
+
+	uiUnixNewControl(uiButton, b);
+
+	b->widget = gtk_button_new_with_label(text);
+	b->button = GTK_BUTTON(b->widget);
+
+	g_signal_connect(b->widget, "clicked", G_CALLBACK(onClicked), b);
+	uiButtonOnClicked(b, defaultOnClicked, NULL);
+
+	return b;
+}