gecko-dev/lib/mac/UserInterface/CSelectionBroadcastingList.cp

224 строки
6.4 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "CSelectionBroadcastingList.h"
#include <LStream.h>
// ---------------------------------------------------------------------------
// ¥ CreateFromStream [static]
// ---------------------------------------------------------------------------
void*
CSelectionBroadcastingList::CreateFromStream(
LStream *inStream)
{
return (new CSelectionBroadcastingList(inStream));
}
// ---------------------------------------------------------------------------
// ¥ CSelectionBroadcastingList
// ---------------------------------------------------------------------------
CSelectionBroadcastingList::CSelectionBroadcastingList(
LStream *inStream)
: fAllowSelectionChange(true),
super(inStream)
{
inStream->ReadData(&fMessage, sizeof(fMessage));
}
// ---------------------------------------------------------------------------
// ¥ ~CSelectionBroadcastingList
// ---------------------------------------------------------------------------
CSelectionBroadcastingList::~CSelectionBroadcastingList()
{
}
// ---------------------------------------------------------------------------
// ¥ SetBroadcastMessage
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::SetBroadcastMessage(MessageT inMessage)
{
fMessage = inMessage;
}
// ---------------------------------------------------------------------------
// ¥ GetBroadcastMessage
// ---------------------------------------------------------------------------
MessageT
CSelectionBroadcastingList::GetBroadcastMessage()
{
return fMessage;
}
// ---------------------------------------------------------------------------
// ¥ SetValue
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::SetValue(Int32 inValue)
{
if (fAllowSelectionChange)
{
super::SetValue(inValue);
BroadcastMessage(fMessage, this);
}
}
// ---------------------------------------------------------------------------
// ¥ DoNavigationKey
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::DoNavigationKey(
const EventRecord &inKeyEvent)
{
int before = NumCellsSelected();
if (fAllowSelectionChange)
{
super::DoNavigationKey(inKeyEvent);
// if num selected hasn't changed, then don't send message
if (NumCellsSelected() != before)
BroadcastMessage(fMessage, this);
}
}
// ---------------------------------------------------------------------------
// ¥ DoTypeSelection
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::DoTypeSelection(
const EventRecord& inKeyEvent)
{
if (fAllowSelectionChange)
{
super::DoTypeSelection(inKeyEvent);
BroadcastMessage(fMessage, this);
}
}
// ---------------------------------------------------------------------------
// ¥ SelectOneCell
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::SelectOneCell(
Cell inCell)
{
if (fAllowSelectionChange)
{
super::SelectOneCell(inCell);
BroadcastMessage(fMessage, this);
}
}
// ---------------------------------------------------------------------------
// ¥ ClickSelf
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::ClickSelf(
const SMouseDownEvent &inMouseDown)
{
int before = NumCellsSelected();
if (fAllowSelectionChange)
{
super::ClickSelf(inMouseDown);
// if num selected hasn't changed, then don't send message
if (NumCellsSelected() != before)
BroadcastMessage(fMessage, this);
}
}
// ---------------------------------------------------------------------------
// ¥ DontAllowSelectionChange
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::DontAllowSelectionChange()
{
fAllowSelectionChange = false;
}
// ---------------------------------------------------------------------------
// ¥ AllowSelectionChange
// ---------------------------------------------------------------------------
void
CSelectionBroadcastingList::AllowSelectionChange()
{
fAllowSelectionChange = true;
}
// ---------------------------------------------------------------------------
// ¥ NumCellsSelected
// ---------------------------------------------------------------------------
int
CSelectionBroadcastingList::NumCellsSelected()
{
int numSelected = 0;
Cell currentCell = {0, 0};
Boolean hasSelection = ::LGetSelect(true, &currentCell, mMacListH);
if (hasSelection)
{
do
{
if (::LGetSelect(true, &currentCell, mMacListH))
numSelected++;
} while (::LNextCell(true, true, &currentCell, mMacListH));
}
return numSelected;
}