/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2016 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 "range.h"
#include "container.h"
#include <ucx/mempool.h>
#include "../common/context.h"
#include "../common/object.h"
static UIWIDGET ui_scrollbar(UiObject *obj, UiOrientation orientation, UiRange *range, ui_callback f, void *userdata) {
UiContainer *ct = uic_get_current_container(obj);
int n = 0;
Arg args[16];
XtSetArg(args[n], XmNorientation, orientation == UI_HORIZONTAL ? XmHORIZONTAL : XmVERTICAL);
n++;
XtSetArg (args[n], XmNmaximum, 10);
n++;
XtSetArg (args[n], XmNsliderSize, 1);
n++;
Widget parent = ct->prepare(ct, args, &n, FALSE);
Widget scrollbar = XmCreateScrollBar(parent, "scrollbar", args, n);
XtManageChild(scrollbar);
ct->add(ct, scrollbar);
if(range) {
range->get = ui_scrollbar_get;
range->set = ui_scrollbar_set;
range->setrange = ui_scrollbar_setrange;
range->setextent = ui_scrollbar_setextent;
range->obj = scrollbar;
}
if(f) {
UiEventData *event = ucx_mempool_malloc(
obj->ctx->mempool,
sizeof(UiEventData));
event->obj = obj;
event->userdata = userdata;
event->callback = f;
event->value = 0;
XtAddCallback(
scrollbar,
XmNvalueChangedCallback,
(XtCallbackProc)ui_scrollbar_callback,
event);
}
return scrollbar;
}
UIWIDGET ui_hscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
return ui_scrollbar(obj, UI_HORIZONTAL, range, f, userdata);
}
UIWIDGET ui_vscrollbar(UiObject *obj, UiRange *range, ui_callback f, void *userdata) {
return ui_scrollbar(obj, UI_VERTICAL, range, f, userdata);
}
void ui_scrollbar_callback(Widget scrollbar, UiEventData *event, XtPointer cdata) {
UiEvent e;
e.obj = event->obj;
e.window = event->obj->window;
e.document = event->obj->ctx->document;
e.intval = event->value;
event->callback(&e, event->userdata);
}
double ui_scrollbar_get(UiRange *range) {
int intval;
XtVaGetValues(
range->obj,
XmNvalue,
&intval,
NULL);
double value = (double)intval / 10;
range->value = value;
return value;
}
void ui_scrollbar_set(UiRange *range, double value) {
XtVaSetValues(
range->obj,
XmNvalue,
(int)(value * 10),
NULL);
range->value = value;
}
void ui_scrollbar_setrange(UiRange *range, double min, double max) {
XtVaSetValues(
range->obj,
XmNminimum,
(int)(min * 10),
XmNmaximum,
(int)(max * 10),
NULL);
range->min = min;
range->max = max;
}
void ui_scrollbar_setextent(UiRange *range, double extent) {
XtVaSetValues(
range->obj,
XmNsliderSize,
(int)(extent * 10),
NULL);
range->extent = extent;
}