diff -r 29d98cff4f56 -r 853685152c1d ui/gtk/entry.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/gtk/entry.c	Sun Nov 12 12:03:50 2017 +0100
@@ -0,0 +1,208 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2017 Olaf Wintermann. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   1. Redistributions of source code must retain the above copyright
+ *      notice, this list of conditions and the following disclaimer.
+ *
+ *   2. Redistributions in binary form must reproduce the above copyright
+ *      notice, this list of conditions and the following disclaimer in the
+ *      documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../common/context.h"
+#include "../common/object.h"
+#include "container.h"
+#include "entry.h"
+
+#include "../../ucx/mempool.h"
+
+UIWIDGET ui_spinner(UiObject *obj, int step, UiInteger *i) {
+    UiVar *var = malloc(sizeof(UiVar));
+    var->value = i;
+    var->type = UI_VAR_SPECIAL;
+    return ui_spinner_var(obj, step, 0, var, UI_VAR_INTEGER);
+}
+
+UIWIDGET ui_spinnerf(UiObject *obj, double step, int digits, UiDouble *d) {
+    UiVar *var = malloc(sizeof(UiVar));
+    var->value = d;
+    var->type = UI_VAR_SPECIAL;
+    return ui_spinner_var(obj, step, digits, var, UI_VAR_DOUBLE);
+}
+
+UIWIDGET ui_spinnerr(UiObject *obj, UiRange *r) {
+    UiVar *var = malloc(sizeof(UiVar));
+    var->value = r;
+    var->type = UI_VAR_SPECIAL;
+    return ui_spinner_var(obj, r->extent, 1, var, UI_VAR_RANGE);
+}
+
+UIWIDGET ui_spinner_nv(UiObject *obj, int step, char *varname) {
+    UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_INTEGER);
+    return ui_spinner_var(obj, step, 0, var, UI_VAR_INTEGER);
+}
+
+UIWIDGET ui_spinnerf_nv(UiObject *obj, double step, int digits, char *varname) {
+    UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_DOUBLE);
+    return ui_spinner_var(obj, step, digits, var, UI_VAR_DOUBLE);
+}
+
+UIWIDGET ui_spinnerr_nv(UiObject *obj, char *varname) {
+    UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_RANGE);
+    UiRange *r = var->value;
+    return ui_spinner_var(obj, r->extent, 1, var, UI_VAR_RANGE);
+}
+
+UIWIDGET ui_spinner_var(UiObject *obj, double step, int digits, UiVar *var, UiVarType type) {
+    double min = 0;
+    double max = 1000;
+    if(type == UI_VAR_RANGE) {
+        UiRange *r = var->value;
+        min = r->min;
+        max = r->max;
+    }
+    if(step == 0) {
+        step = 1;
+    }
+    GtkWidget *spin = gtk_spin_button_new_with_range(min, max, step);
+    gtk_spin_button_set_digits(GTK_SPIN_BUTTON(spin), digits);
+    if(var) {
+        double value = 0;
+        UiObserver **obs = NULL;
+        switch(type) {
+            case UI_VAR_INTEGER: {
+                UiInteger *i = var->value;
+                i->get = ui_spinbutton_getint;
+                i->set = ui_spinbutton_setint;
+                i->obj = spin;
+                value = (double)i->value;
+                obs = &i->observers;
+                break;
+            }
+            case UI_VAR_DOUBLE: {
+                UiDouble *d = var->value;
+                d->get = ui_spinbutton_getdouble;
+                d->set = ui_spinbutton_setdouble;
+                d->obj = spin;
+                value = d->value;
+                obs = &d->observers;
+                break;
+            }
+            case UI_VAR_RANGE: {
+                UiRange *r = var->value;
+                r->get = ui_spinbutton_getrangeval;
+                r->set = ui_spinbutton_setrangeval;
+                r->setrange = ui_spinbutton_setrange;
+                r->setextent = ui_spinbutton_setextent;
+                r->obj = spin;
+                value = r->value;
+                obs = &r->observers;
+                break;
+            }
+        }
+        gtk_spin_button_set_value(GTK_SPIN_BUTTON(spin), value);
+        
+        UiVarEventData *event = malloc(sizeof(UiVarEventData));
+        event->obj = obj;
+        event->var = var;
+        event->observers = obs;
+        
+        g_signal_connect(
+                spin,
+                "value-changed",
+                G_CALLBACK(ui_spinner_changed),
+                event);
+        g_signal_connect(
+                spin,
+                "destroy",
+                G_CALLBACK(ui_destroy_vardata),
+                event);
+    }
+    
+    UiContainer *ct = uic_get_current_container(obj);
+    ct->add(ct, spin, FALSE);
+    
+    return spin;
+}
+
+void ui_spinner_setrange(UIWIDGET spinner, double min, double max) {
+    gtk_spin_button_set_range(GTK_SPIN_BUTTON(spinner), min, max);
+}
+
+void ui_spinner_setdigits(UIWIDGET spinner, int digits) {
+    gtk_spin_button_set_digits(GTK_SPIN_BUTTON(spinner), digits);
+}
+
+
+void ui_spinner_changed(GtkSpinButton *spinner, UiVarEventData *event) {
+    UiEvent e;
+    e.obj = event->obj;
+    e.window = event->obj->window;
+    e.document = event->obj->ctx->document;
+    e.eventdata = event->var->value;
+    e.intval = 0;
+    
+    UiObserver *observer = *event->observers;
+    ui_notify_evt(observer, &e);
+}
+
+
+int64_t ui_spinbutton_getint(UiInteger *i) {
+    i->value = gtk_spin_button_get_value_as_int(GTK_SPIN_BUTTON(i->obj));
+    return i->value;
+}
+
+void ui_spinbutton_setint(UiInteger *i, int64_t val) {
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(i->obj), (double)val);
+    i->value = val;
+}
+
+double ui_spinbutton_getdouble(UiDouble *d) {
+    d->value = gtk_spin_button_get_value(GTK_SPIN_BUTTON(d->obj));
+    return d->value;
+}
+
+void ui_spinbutton_setdouble(UiDouble *d, double val) {
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(d->obj), val);
+    d->value = val;
+}
+
+double ui_spinbutton_getrangeval(UiRange *r) {
+    r->value = gtk_spin_button_get_value(GTK_SPIN_BUTTON(r->obj));
+    return r->value;
+}
+
+void ui_spinbutton_setrangeval(UiRange *r, double val) {
+    gtk_spin_button_set_value(GTK_SPIN_BUTTON(r->obj), val);
+    r->value = val;
+}
+void ui_spinbutton_setrange(UiRange *r, double min, double max) {
+    gtk_spin_button_set_range(GTK_SPIN_BUTTON(r->obj), min, max);
+    r->min = min;
+    r->max = max;
+}
+
+void ui_spinbutton_setextent(UiRange *r, double extent) {
+    gtk_spin_button_set_increments(GTK_SPIN_BUTTON(r->obj), extent, extent*10);
+    r->extent = extent;
+}