557 lines
16 KiB
C++
557 lines
16 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsListBox.h"
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#include "nsColor.h"
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#include "nsGUIEvent.h"
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#include "nsString.h"
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#include "nsStringUtil.h"
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#include <Xm/List.h>
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#define DBG 0
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//-------------------------------------------------------------------------
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//
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// initializer
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//
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//-------------------------------------------------------------------------
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void nsListBox::SetMultipleSelection(PRBool aMultipleSelections)
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{
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mMultiSelect = aMultipleSelections;
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}
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//-------------------------------------------------------------------------
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//
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// AddItemAt
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//
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//-------------------------------------------------------------------------
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void nsListBox::AddItemAt(nsString &aItem, PRInt32 aPosition)
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{
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NS_ALLOC_STR_BUF(val, aItem, 256);
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XmString str;
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str = XmStringCreateLocalized(val);
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XmListAddItem(mWidget, str, (int)aPosition+1);
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NS_FREE_STR_BUF(val);
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}
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//-------------------------------------------------------------------------
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//
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// Finds an item at a postion
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::FindItem(nsString &aItem, PRInt32 aStartPos)
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{
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NS_ALLOC_STR_BUF(val, aItem, 256);
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XmString str = XmStringCreate(val, XmFONTLIST_DEFAULT_TAG);
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int index = XmListItemPos(mWidget, str)-1;
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if (index < aStartPos) {
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index = -1;
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}
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NS_FREE_STR_BUF(val);
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XmStringFree(str);
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return index;
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}
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//-------------------------------------------------------------------------
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//
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// CountItems - Get Item Count
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::GetItemCount()
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{
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int count = 0;
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XtVaGetValues(mWidget, XmNitemCount, &count, nsnull);
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return (PRInt32)count;
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}
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//-------------------------------------------------------------------------
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//
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// Removes an Item at a specified location
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::RemoveItemAt(PRInt32 aPosition)
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{
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int count = 0;
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XtVaGetValues(mWidget, XmNitemCount, &count, nsnull);
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if (aPosition >= 0 && aPosition < count) {
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XmListDeletePos(mWidget, aPosition+1);
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return PR_TRUE;
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}
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return PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//
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//
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::GetItemAt(nsString& anItem, PRInt32 aPosition)
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{
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PRBool result = PR_FALSE;
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XmStringTable list;
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int count = 0;
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XtVaGetValues(mWidget, XmNitems, &list, XmNitemCount, &count, nsnull);
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if (aPosition >= 0 && aPosition < count) {
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char * text;
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if (XmStringGetLtoR(list[aPosition], XmFONTLIST_DEFAULT_TAG, &text)) {
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anItem.SetLength(0);
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anItem.Append(text);
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XtFree(text);
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result = PR_TRUE;
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}
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}
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return result;
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}
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//-------------------------------------------------------------------------
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//
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// Gets the selected of selected item
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//
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//-------------------------------------------------------------------------
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void nsListBox::GetSelectedItem(nsString& aItem)
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{
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int * list;
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int count;
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if (XmListGetSelectedPos(mWidget, &list, &count)) {
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GetItemAt(aItem, list[0]-1);
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XtFree((char *)list);
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}
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}
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//-------------------------------------------------------------------------
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//
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// Gets the list of selected otems
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::GetSelectedIndex()
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{
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if (!mMultiSelect) {
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int * list;
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int count;
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if (XmListGetSelectedPos(mWidget, &list, &count)) {
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int index = -1;
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if (count > 0) {
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index = list[0]-1;
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}
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XtFree((char *)list);
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return index;
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}
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} else {
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NS_ASSERTION(0, "Multi selection list box does not support GetSlectedIndex()");
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}
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return -1;
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}
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//-------------------------------------------------------------------------
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//
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// SelectItem
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//
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//-------------------------------------------------------------------------
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void nsListBox::SelectItem(PRInt32 aPosition)
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{
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int count = 0;
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XtVaGetValues(mWidget, XmNitemCount, &count, nsnull);
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if (aPosition >= 0 && aPosition < count) {
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XmListSelectPos(mWidget, aPosition+1, FALSE);
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}
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}
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//-------------------------------------------------------------------------
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//
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// GetSelectedCount
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::GetSelectedCount()
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{
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int count = 0;
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XtVaGetValues(mWidget, XmNselectedItemCount, &count, nsnull);
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return (PRInt32)count;
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}
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//-------------------------------------------------------------------------
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//
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// GetSelectedIndices
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//
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//-------------------------------------------------------------------------
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void nsListBox::GetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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int * list;
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int count;
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if (XmListGetSelectedPos(mWidget, &list, &count)) {
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int num = aSize > count?count:aSize;
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int i;
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for (i=0;i<num;i++) {
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aIndices[i] = (PRInt32)list[i]-1;
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}
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XtFree((char *)list);
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}
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}
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//-------------------------------------------------------------------------
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//
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// SetSelectedIndices
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//
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//-------------------------------------------------------------------------
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void nsListBox::SetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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if (GetSelectedCount() > 0) {
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XtVaSetValues(mWidget, XmNselectedItemCount, 0, NULL);
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}
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int i;
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for (i=0;i<aSize;i++) {
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SelectItem(aIndices[i]);
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}
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}
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//-------------------------------------------------------------------------
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//
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// Deselect
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//
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//-------------------------------------------------------------------------
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void nsListBox::Deselect()
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{
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XtVaSetValues(mWidget, XmNselectedItemCount, 0, NULL);
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}
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//-------------------------------------------------------------------------
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//
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// nsListBox constructor
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//
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//-------------------------------------------------------------------------
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nsListBox::nsListBox(nsISupports *aOuter) : nsWindow(aOuter)
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{
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mMultiSelect = PR_FALSE;
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mBackground = NS_RGB(124, 124, 124);
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}
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//-------------------------------------------------------------------------
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//
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// nsListBox:: destructor
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//
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//-------------------------------------------------------------------------
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nsListBox::~nsListBox()
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{
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}
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//-------------------------------------------------------------------------
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//
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// Query interface implementation
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//
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//-------------------------------------------------------------------------
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nsresult nsListBox::QueryObject(const nsIID& aIID, void** aInstancePtr)
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{
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nsresult result = nsWindow::QueryObject(aIID, aInstancePtr);
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static NS_DEFINE_IID(kInsListBoxIID, NS_ILISTBOX_IID);
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static NS_DEFINE_IID(kInsListWidgetIID, NS_ILISTWIDGET_IID);
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if (result == NS_NOINTERFACE) {
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if (aIID.Equals(kInsListBoxIID)) {
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*aInstancePtr = (void*) ((nsIListBox*)&mAggWidget);
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AddRef();
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result = NS_OK;
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}
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else if (aIID.Equals(kInsListWidgetIID)) {
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*aInstancePtr = (void*) ((nsIListWidget*)&mAggWidget);
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AddRef();
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result = NS_OK;
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}
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}
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return result;
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}
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//-------------------------------------------------------------------------
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//
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// nsListBox Creator
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//
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//-------------------------------------------------------------------------
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void nsListBox::Create(nsIWidget *aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData)
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{
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aParent->AddChild(this);
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Widget parentWidget = nsnull;
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if (DBG) fprintf(stderr, "aParent 0x%x\n", aParent);
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if (aParent) {
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parentWidget = (Widget) aParent->GetNativeData(NS_NATIVE_WIDGET);
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} else {
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parentWidget = (Widget) aAppShell->GetNativeData(NS_NATIVE_SHELL);
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}
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InitToolkit(aToolkit, aParent);
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InitDeviceContext(aContext, parentWidget);
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if (DBG) fprintf(stderr, "Parent 0x%x\n", parentWidget);
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unsigned char selectionPolicy;
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Boolean autoSelection;
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if (mMultiSelect) {
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//selectionPolicy = XmEXTENDED_SELECT;
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selectionPolicy = XmMULTIPLE_SELECT;
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autoSelection = TRUE;
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} else {
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selectionPolicy = XmBROWSE_SELECT;
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autoSelection = FALSE;
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}
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mWidget = ::XtVaCreateManagedWidget("",
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xmListWidgetClass,
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parentWidget,
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XmNitemCount, 0,
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XmNx, aRect.x,
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XmNy, aRect.y,
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XmNwidth, aRect.width,
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XmNheight, aRect.height,
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XmNrecomputeSize, False,
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XmNselectionPolicy, selectionPolicy,
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XmNautomaticSelection, autoSelection,
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XmNscrollBarDisplayPolicy, XmAS_NEEDED,
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XmNlistSizePolicy, XmCONSTANT,
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XmNmarginTop, 0,
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XmNmarginBottom, 0,
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XmNmarginLeft, 0,
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XmNmarginRight, 0,
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XmNmarginHeight, 0,
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XmNmarginWidth, 0,
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XmNlistMarginHeight, 0,
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XmNlistMarginWidth, 0,
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XmNscrolledWindowMarginWidth, 0,
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XmNscrolledWindowMarginHeight, 0,
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nsnull);
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if (DBG) fprintf(stderr, "Button 0x%x this 0x%x\n", mWidget, this);
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// save the event callback function
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mEventCallback = aHandleEventFunction;
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//InitCallbacks();
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}
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//-------------------------------------------------------------------------
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//
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// nsListBox Creator
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//
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//-------------------------------------------------------------------------
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void nsListBox::Create(nsNativeWidget aParent,
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const nsRect &aRect,
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EVENT_CALLBACK aHandleEventFunction,
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nsIDeviceContext *aContext,
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nsIAppShell *aAppShell,
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nsIToolkit *aToolkit,
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nsWidgetInitData *aInitData)
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{
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}
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//-------------------------------------------------------------------------
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//
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// move, paint, resizes message - ignore
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::OnMove(PRInt32, PRInt32)
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{
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return PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//
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// paint message. Don't send the paint out
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::OnPaint(nsPaintEvent &aEvent)
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{
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return PR_FALSE;
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}
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PRBool nsListBox::OnResize(nsSizeEvent &aEvent)
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{
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return PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//-------------------------------------------------------------------------
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//-------------------------------------------------------------------------
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//-------------------------------------------------------------------------
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#define GET_OUTER() ((nsListBox*) ((char*)this - nsListBox::GetOuterOffset()))
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//-------------------------------------------------------------------------
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//
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// SetMultipleSelection
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::SetMultipleSelection(PRBool aMultipleSelections)
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{
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GET_OUTER()->SetMultipleSelection(aMultipleSelections);
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}
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//-------------------------------------------------------------------------
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//
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// AddItemAt
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::AddItemAt(nsString &aItem, PRInt32 aPosition)
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{
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GET_OUTER()->AddItemAt(aItem, aPosition);
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}
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//-------------------------------------------------------------------------
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//
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// Finds an item at a postion
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::AggListBox::FindItem(nsString &aItem, PRInt32 aStartPos)
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{
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return GET_OUTER()->FindItem(aItem, aStartPos);
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}
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//-------------------------------------------------------------------------
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//
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// CountItems - Get Item Count
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::AggListBox::GetItemCount()
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{
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return GET_OUTER()->GetItemCount();
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}
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//-------------------------------------------------------------------------
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//
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// Removes an Item at a specified location
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::AggListBox::RemoveItemAt(PRInt32 aPosition)
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{
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return GET_OUTER()->RemoveItemAt(aPosition);
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}
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//-------------------------------------------------------------------------
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//
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// Removes an Item at a specified location
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::AggListBox::GetItemAt(nsString& anItem, PRInt32 aPosition)
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{
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return GET_OUTER()->GetItemAt(anItem, aPosition);
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}
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//-------------------------------------------------------------------------
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//
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// Gets the selected of selected item
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::GetSelectedItem(nsString& aItem)
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{
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GET_OUTER()->GetSelectedItem(aItem);
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}
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//-------------------------------------------------------------------------
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//
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// Gets the list of selected otems
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::AggListBox::GetSelectedIndex()
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{
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return GET_OUTER()->GetSelectedIndex();
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}
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//-------------------------------------------------------------------------
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//
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// SelectItem
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::SelectItem(PRInt32 aPosition)
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{
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GET_OUTER()->SelectItem(aPosition);
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}
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//-------------------------------------------------------------------------
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//
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// GetSelectedCount
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//
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//-------------------------------------------------------------------------
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PRInt32 nsListBox::AggListBox::GetSelectedCount()
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{
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return GET_OUTER()->GetSelectedCount();
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}
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//-------------------------------------------------------------------------
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//
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// GetSelectedIndices
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::GetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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GET_OUTER()->GetSelectedIndices(aIndices, aSize);
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}
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//-------------------------------------------------------------------------
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//
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// GetSelectedIndices
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::SetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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GET_OUTER()->SetSelectedIndices(aIndices, aSize);
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}
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//-------------------------------------------------------------------------
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//
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// Deselect
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//
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//-------------------------------------------------------------------------
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void nsListBox::AggListBox::Deselect()
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{
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GET_OUTER()->Deselect();
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}
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//----------------------------------------------------------------------
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BASE_IWIDGET_IMPL(nsListBox, AggListBox);
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