mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-12 14:37:50 +00:00
105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#include "stdafx.h"
|
|
#include "intelli.h"
|
|
#include "slavewnd.h"
|
|
|
|
// Be sure to handle WM_MOUSEWHEEL and this registered message
|
|
// also.
|
|
UINT msg_MouseWheel =
|
|
#if _MSC_VER >= 1100
|
|
RegisterWindowMessage(MSH_MOUSEWHEEL);
|
|
#else
|
|
(UINT)-1;
|
|
#endif
|
|
|
|
// Internal to this file.
|
|
UINT msg_ScrollLines =
|
|
#if _MSC_VER >= 1100
|
|
RegisterWindowMessage(MSH_SCROLL_LINES);
|
|
#else
|
|
(UINT)-1;
|
|
#endif
|
|
|
|
CMouseWheel intelli;
|
|
|
|
void UpdateMouseSettings(UINT uMsg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
// Make sure we want to take a look at this.
|
|
if(uMsg == WM_SETTINGCHANGE) {
|
|
// What happened?
|
|
#if _MSC_VER >= 1100
|
|
if(wParam == SPI_SETWHEELSCROLLLINES) {
|
|
// Number of scroll lines changed.
|
|
intelli.Update();
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
CMouseWheel::CMouseWheel()
|
|
{
|
|
m_uScrollLines = 0;
|
|
|
|
// Initialize mouse settings.
|
|
Update();
|
|
|
|
// Register to watch mouse settings.
|
|
m_pWatcher = slavewnd.Register(WM_SETTINGCHANGE, UpdateMouseSettings);
|
|
}
|
|
|
|
CMouseWheel::~CMouseWheel()
|
|
{
|
|
if(m_pWatcher) {
|
|
slavewnd.UnRegister(m_pWatcher);
|
|
m_pWatcher = NULL;
|
|
}
|
|
}
|
|
|
|
void CMouseWheel::Update()
|
|
{
|
|
HWND hWheel = GetWheelWnd();
|
|
|
|
// Determine number of lines to scroll.
|
|
m_uScrollLines = 3;
|
|
|
|
if(sysInfo.m_bWinNT && sysInfo.m_dwMajor >= 4) {
|
|
#if _MSC_VER >= 1100
|
|
::SystemParametersInfo(SPI_GETWHEELSCROLLLINES, 0, &m_uScrollLines, 0);
|
|
#endif
|
|
}
|
|
else if(hWheel) {
|
|
m_uScrollLines = (UINT)::SendMessage(hWheel, msg_ScrollLines, 0, 0);
|
|
}
|
|
}
|
|
|
|
HWND CMouseWheel::GetWheelWnd()
|
|
{
|
|
HWND hRetval = NULL;
|
|
#if _MSC_VER >= 1100
|
|
hRetval = ::FindWindow(MSH_WHEELMODULE_CLASS, MSH_WHEELMODULE_TITLE);
|
|
#endif
|
|
return(hRetval);
|
|
}
|
|
|
|
UINT CMouseWheel::ScrollLines()
|
|
{
|
|
return(m_uScrollLines);
|
|
}
|