354 lines
9.6 KiB
C++
354 lines
9.6 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#include "nsListBox.h"
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#include "nsToolkit.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 <windows.h>
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NS_IMPL_ADDREF(nsListBox)
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NS_IMPL_RELEASE(nsListBox)
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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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NS_METHOD nsListBox::SetMultipleSelection(PRBool aMultipleSelections)
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{
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mMultiSelect = aMultipleSelections;
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return NS_OK;
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}
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NS_METHOD nsListBox::PreCreateWidget(nsWidgetInitData *aInitData)
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{
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if (nsnull != aInitData) {
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nsListBoxInitData* data = (nsListBoxInitData *) aInitData;
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mMultiSelect = data->mMultiSelect;
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}
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return NS_OK;
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}
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//-------------------------------------------------------------------------
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//
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// destructor
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//
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//-------------------------------------------------------------------------
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NS_METHOD 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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SendMessage(mWnd, LB_INSERTSTRING, (int)aPosition, (LPARAM)(LPCTSTR)val);
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NS_FREE_STR_BUF(val);
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return NS_OK;
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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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int index = ::SendMessage(mWnd, LB_FINDSTRINGEXACT, (int)aStartPos, (LPARAM)(LPCTSTR)val);
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NS_FREE_STR_BUF(val);
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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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return (PRInt32)::SendMessage(mWnd, LB_GETCOUNT, (int)0, (LPARAM)0);
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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 status = ::SendMessage(mWnd, LB_DELETESTRING, (int)aPosition, (LPARAM)(LPCTSTR)0);
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return (status != LB_ERR?PR_TRUE:PR_FALSE);
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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::GetItemAt(nsString& anItem, PRInt32 aPosition)
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{
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PRBool result = PR_FALSE;
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int len = ::SendMessage(mWnd, LB_GETTEXTLEN, (int)aPosition, (LPARAM)0);
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if (len != LB_ERR) {
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char * str = new char[len+1];
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anItem.SetLength(0);
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int status = ::SendMessage(mWnd, LB_GETTEXT, (int)aPosition, (LPARAM)(LPCTSTR)str);
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if (status != LB_ERR) {
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anItem.Append(str);
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result = PR_TRUE;
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}
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delete str;
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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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NS_METHOD nsListBox::GetSelectedItem(nsString& aItem)
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{
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if (!mMultiSelect) {
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int index = ::SendMessage(mWnd, LB_GETCURSEL, (int)0, (LPARAM)0);
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GetItemAt(aItem, index);
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} else {
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NS_ASSERTION(0, "Multi selection list box does not support GetSelectedItem()");
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}
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return NS_OK;
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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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return ::SendMessage(mWnd, LB_GETCURSEL, (int)0, (LPARAM)0);
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} else {
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NS_ASSERTION(0, "Multi selection list box does not support GetSelectedIndex()");
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}
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return 0;
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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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NS_METHOD nsListBox::SelectItem(PRInt32 aPosition)
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{
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if (!mMultiSelect) {
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::SendMessage(mWnd, LB_SETCURSEL, (int)aPosition, (LPARAM)0);
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} else {
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::SendMessage(mWnd, LB_SETSEL, (WPARAM) (BOOL)PR_TRUE, (LPARAM)(UINT)aPosition);
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}
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return NS_OK;
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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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if (!mMultiSelect) {
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PRInt32 inx = GetSelectedIndex();
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return (inx == -1? 0 : 1);
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} else {
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return ::SendMessage(mWnd, LB_GETSELCOUNT, (int)0, (LPARAM)0);
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}
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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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NS_METHOD nsListBox::GetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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::SendMessage(mWnd, LB_GETSELITEMS, (int)aSize, (LPARAM)aIndices);
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return NS_OK;
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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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NS_METHOD nsListBox::SetSelectedIndices(PRInt32 aIndices[], PRInt32 aSize)
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{
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for (int i=0;i<aSize;i++) {
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SelectItem(aIndices[i]);
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}
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return NS_OK;
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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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NS_METHOD nsListBox::Deselect()
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{
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if (!mMultiSelect) {
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::SendMessage(mWnd, LB_SETCURSEL, (WPARAM)-1, (LPARAM)0);
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} else {
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::SendMessage(mWnd, LB_SETSEL, (WPARAM) (BOOL)PR_FALSE, (LPARAM)(UINT)-1);
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}
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return NS_OK;
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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() : nsWindow(), nsIListWidget(), nsIListBox()
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{
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NS_INIT_REFCNT();
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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::QueryInterface(const nsIID& aIID, void** aInstancePtr)
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{
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nsresult result = nsWindow::QueryInterface(aIID, aInstancePtr);
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if (result == NS_NOINTERFACE) {
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if (aIID.Equals(nsCOMTypeInfo<nsIListBox>::GetIID())) {
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*aInstancePtr = (void*) ((nsIListBox*)this);
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NS_ADDREF_THIS();
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result = NS_OK;
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}
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else if (aIID.Equals(nsCOMTypeInfo<nsIListWidget>::GetIID())) {
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*aInstancePtr = (void*) ((nsIListWidget*)this);
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NS_ADDREF_THIS();
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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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// 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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PRBool nsListBox::OnPaint()
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{
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return PR_FALSE;
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}
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PRBool nsListBox::OnResize(nsRect &aWindowRect)
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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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// return the window class name and initialize the class if needed
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//
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//-------------------------------------------------------------------------
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LPCTSTR nsListBox::WindowClass()
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{
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return("LISTBOX");
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}
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//-------------------------------------------------------------------------
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//
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// return window styles
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//
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//-------------------------------------------------------------------------
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DWORD nsListBox::WindowStyle()
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{
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DWORD style = (LBS_NOINTEGRALHEIGHT | WS_BORDER | WS_CHILD | WS_CLIPSIBLINGS | WS_VSCROLL);
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if (mMultiSelect)
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style = LBS_MULTIPLESEL | LBS_EXTENDEDSEL | style;
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return style;
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}
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//-------------------------------------------------------------------------
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//
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// return window extended styles
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//
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//-------------------------------------------------------------------------
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DWORD nsListBox::WindowExStyle()
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{
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return 0;
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}
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//-------------------------------------------------------------------------
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//
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// Clear window before paint
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//
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//-------------------------------------------------------------------------
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PRBool nsListBox::AutoErase()
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{
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return(PR_TRUE);
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}
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//-------------------------------------------------------------------------
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//
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// get position/dimensions
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//
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//-------------------------------------------------------------------------
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NS_METHOD nsListBox::GetBounds(nsRect &aRect)
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{
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nsWindow::GetNonClientBounds(aRect);
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return NS_OK;
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}
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