/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 2014 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 "container.h"
#include "list.h"
#include "../common/object.h"
void* ui_strmodel_getvalue(void *elm, int column) {
return column == 0 ? elm : NULL;
}
UIWIDGET ui_listview_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
return ui_listview(obj, list, ui_strmodel_getvalue, f, udata);
}
UIWIDGET ui_listview_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
int count;
XmStringTable items = ui_create_stringlist(var->value, getvalue, &count);
Arg args[8];
int n = 0;
XtSetArg(args[n], XmNitemCount, count);
n++;
XtSetArg(args[n], XmNitems, count == 0 ? NULL : items);
n++;
UiContainer *ct = uic_get_current_container(obj);
Widget parent = ct->prepare(ct, args, &n, TRUE);
Widget widget = XmCreateScrolledList(parent, "listview", args, n);
ct->add(ct, XtParent(widget));
XtManageChild(widget);
UiListView *listview = ucx_mempool_malloc(obj->ctx->mempool, sizeof(UiListView));
listview->widget = widget;
listview->list = var;
listview->getvalue = getvalue;
for (int i=0;i<count;i++) {
XmStringFree(items[i]);
}
XtFree((char *)items);
if(f) {
UiListViewEventData *event = ucx_mempool_malloc(
obj->ctx->mempool,
sizeof(UiListViewEventData));
event->event.obj = obj;
event->event.userdata = udata;
event->event.callback = f;
event->event.value = 0;
event->var = var;
XtAddCallback(
widget,
XmNdefaultActionCallback,
(XtCallbackProc)ui_list_selection_callback,
event);
}
return widget;
}
UIWIDGET ui_listview(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
UiVar *var = malloc(sizeof(UiVar));
var->value = list;
var->type = UI_VAR_SPECIAL;
return ui_listview_var(obj, var, getvalue, f, udata);
}
UIWIDGET ui_listview_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
if(var) {
UiListVar *value = var->value;
return ui_listview_var(obj, var, getvalue, f, udata);
} else {
// TODO: error
}
return NULL;
}
XmStringTable ui_create_stringlist(UiList *list, ui_getvaluefunc getvalue, int *count) {
int num = list->count(list);
XmStringTable items = (XmStringTable)XtMalloc(num * sizeof(XmString));
void *data = list->first(list);
for(int i=0;i<num;i++) {
items[i] = XmStringCreateLocalized(getvalue(data, 0));
data = list->next(list);
}
*count = num;
return items;
}
void ui_listview_update(UiEvent *event, UiListView *view) {
int count;
XmStringTable items = ui_create_stringlist(
view->list->value,
view->getvalue,
&count);
XtVaSetValues(
view->widget,
XmNitems, count == 0 ? NULL : items,
XmNitemCount,
count,
NULL);
for (int i=0;i<count;i++) {
XmStringFree(items[i]);
}
XtFree((char *)items);
}
void ui_list_selection_callback (Widget widget, UiListViewEventData *event, XtPointer data) {
XmListCallbackStruct *cbs = (XmListCallbackStruct *)data;
UiEvent e;
e.obj = event->event.obj;
e.window = event->event.obj->window;
e.document = event->event.obj->ctx->document;
UiList *list = event->var->value;
e.eventdata = list->get(list, cbs->item_position - 1);
e.intval = cbs->item_position - 1;
event->event.callback(&e, event->event.userdata);
}
/* --------------------------- ComboBox --------------------------- */
UIWIDGET ui_combobox_str(UiObject *obj, UiList *list, ui_callback f, void *udata) {
return ui_combobox(obj, list, ui_strmodel_getvalue, f, udata);
}
UIWIDGET ui_combobox(UiObject *obj, UiList *list, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
UiVar *var = malloc(sizeof(UiVar));
var->value = list;
var->type = UI_VAR_SPECIAL;
return ui_combobox_var(obj, var, getvalue, f, udata);
}
UIWIDGET ui_combobox_nv(UiObject *obj, char *varname, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
UiVar *var = uic_create_var(obj->ctx, varname, UI_VAR_LIST);
if(var) {
UiListVar *value = var->value;
return ui_combobox_var(obj, var, getvalue, f, udata);
} else {
// TODO: error
}
return NULL;
}
UIWIDGET ui_combobox_var(UiObject *obj, UiVar *var, ui_getvaluefunc getvalue, ui_callback f, void *udata) {
UiListView *listview = ucx_mempool_malloc(
obj->ctx->mempool,
sizeof(UiListView));
UiContainer *ct = uic_get_current_container(obj);
Arg args[16];
int n = 0;
XtSetArg(args[n], XmNindicatorOn, XmINDICATOR_NONE);
n++;
XtSetArg(args[n], XmNtraversalOn, FALSE);
n++;
XtSetArg(args[n], XmNwidth, 160);
n++;
Widget parent = ct->prepare(ct, args, &n, FALSE);
Widget combobox = XmCreateDropDownList(parent, "combobox", args, n);
XtManageChild(combobox);
listview->widget = combobox;
listview->list = var;
listview->getvalue = getvalue;
ui_listview_update(NULL, listview);
}