2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
4 * Copyright 2016 Olaf Wintermann. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26 * POSSIBILITY OF SUCH DAMAGE.
33 #include "container.h"
34 #include <ucx/mempool.h>
35 #include "../common/context.h"
36 #include "../common/object.h"
39 static UIWIDGET ui_scrollbar(UiObject *obj, UiOrientation orientation, UiRange *range, ui_callback f, void *userdata) {
40 UiContainer *ct = uic_get_current_container(obj);
44 XtSetArg(args[n], XmNorientation, orientation == UI_HORIZONTAL ? XmHORIZONTAL : XmVERTICAL);
46 XtSetArg (args[n], XmNmaximum, 10);
48 XtSetArg (args[n], XmNsliderSize, 1);
50 Widget parent = ct->prepare(ct, args, &n, FALSE);
51 Widget scrollbar = XmCreateScrollBar(parent, "scrollbar", args, n);
52 XtManageChild(scrollbar);
53 ct->add(ct, scrollbar);
56 range->get = ui_scrollbar_get;
57 range->set = ui_scrollbar_set;
58 range->setrange = ui_scrollbar_setrange;
59 range->setextent = ui_scrollbar_setextent;
60 range->obj = scrollbar;
64 UiEventData *event = ucx_mempool_malloc(
68 event->userdata = userdata;
73 XmNvalueChangedCallback,
74 (XtCallbackProc)ui_scrollbar_callback,
81 UIWIDGET ui_hscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
82 return ui_scrollbar(obj, UI_HORIZONTAL, range, f, userdata);
85 UIWIDGET ui_vscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
86 return ui_scrollbar(obj, UI_VERTICAL, range, f, userdata);
89 void ui_scrollbar_callback(Widget scrollbar, UiEventData *event, XtPointer cdata) {
92 e.window = event->obj->window;
93 e.document = event->obj->ctx->document;
94 e.intval = event->value;
95 event->callback(&e, event->userdata);
98 double ui_scrollbar_get(UiRange *range) {
105 double value = (double)intval / 10;
106 range->value = value;
110 void ui_scrollbar_set(UiRange *range, double value) {
116 range->value = value;
119 void ui_scrollbar_setrange(UiRange *range, double min, double max) {
131 void ui_scrollbar_setextent(UiRange *range, double extent) {
137 range->extent = extent;