390 lines
10 KiB
C++
390 lines
10 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 "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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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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if(mListView && mListView->LockLooper())
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{
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mListView->SetListType(aMultipleSelections ? B_MULTIPLE_SELECTION_LIST : B_SINGLE_SELECTION_LIST);
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mListView->UnlockLooper();
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}
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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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if(mListView && mListView->LockLooper())
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{
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NS_ALLOC_STR_BUF(val, aItem, 256);
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mListView->AddItem(new BStringItem(val), aPosition);
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NS_FREE_STR_BUF(val);
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mListView->UnlockLooper();
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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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// 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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#if 0
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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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#endif
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printf("nsListBox::FindItem not implemented\n");
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return -1;
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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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PRInt32 result = 0;
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if(mListView && mListView->LockLooper())
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{
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result = mListView->CountItems();
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mListView->UnlockLooper();
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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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// 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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if(mListView && mListView->LockLooper())
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{
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BListItem *it = mListView->RemoveItem(aPosition);
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delete it;
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mListView->UnlockLooper();
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return it ? PR_TRUE : PR_FALSE;
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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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// 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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anItem.SetLength(0);
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if(mListView && mListView->LockLooper())
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{
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BListItem *it = mListView->ItemAt(aPosition);
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BStringItem *str;
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if((str = dynamic_cast<BStringItem *>(it)) != 0)
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{
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anItem.Append(str->Text());
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result = PR_TRUE;
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}
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mListView->UnlockLooper();
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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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GetItemAt(aItem, GetSelectedIndex());
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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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{
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PRInt32 index = -1;
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if(mListView && mListView->LockLooper())
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{
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index = mListView->CurrentSelection();
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mListView->UnlockLooper();
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}
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return index;
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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(mListView && mListView->LockLooper())
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{
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mListView->Select(aPosition);
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mListView->UnlockLooper();
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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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PRInt32 count = 0;
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if(mListView && mListView->LockLooper())
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{
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int index = 0;
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while((index = mListView->CurrentSelection(index)) != -1)
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count++;
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mListView->UnlockLooper();
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}
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return count;
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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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if(mListView && mListView->LockLooper())
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{
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int index = 0;
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for(int i = 0; i < aSize; i++)
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{
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if(index != -1)
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index = mListView->CurrentSelection(index);
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aIndices[i] = index;
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}
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mListView->UnlockLooper();
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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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// 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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if(mListView && mListView->LockLooper())
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{
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mListView->Select(aIndices[0], false);
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for(int i = 1; i < aSize; i++)
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mListView->Select(aIndices[i], true);
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mListView->UnlockLooper();
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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(mListView && mListView->LockLooper())
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{
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mListView->DeselectAll();
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mListView->UnlockLooper();
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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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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*)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(kInsListWidgetIID)) {
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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(nsRect &r)
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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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// 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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#if 0
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nsWindow::GetNonClientBounds(aRect);
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#endif
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printf("nsListBox::GetBounds not wrong\n"); // the following is just a placeholder
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nsWindow::GetClientBounds(aRect);
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return NS_OK;
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}
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BView *nsListBox::CreateBeOSView()
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{
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return mListView = new nsListViewBeOS((nsIWidget *)this, BRect(0, 0, 0, 0), "");
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}
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//-------------------------------------------------------------------------
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// Sub-class of BeOS ListView
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//-------------------------------------------------------------------------
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nsListViewBeOS::nsListViewBeOS( nsIWidget *aWidgetWindow, BRect aFrame,
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const char *aName, uint32 aResizingMode, uint32 aFlags )
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: BListView( aFrame, aName,
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((nsListBox *)aWidgetWindow)->mMultiSelect ? B_MULTIPLE_SELECTION_LIST : B_SINGLE_SELECTION_LIST,
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aResizingMode, aFlags ),
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nsIWidgetStore( aWidgetWindow )
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{
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}
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