зеркало из https://github.com/mozilla/pjs.git
1495 строки
46 KiB
C++
1495 строки
46 KiB
C++
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/* -*- Mode: C++; tab-width: 4; 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 "stdafx.h"
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#include "cxpane.h"
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#ifdef XP_WIN32
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#include "intelli.h"
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#endif
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#include "navcontv.h"
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// What is CPaneCX?
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// A pane is part of a complete window.
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//
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// There is no relation from a pane to the chrome of a full window.
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// There is no frame, no document, no view, no toolbar, etc.
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// No assumptions should be made, or the pane becomes non-reusable in a
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// window that is yet to be invented.
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//
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// A pane can be put many places:
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// In a dialog.
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// In a navigation tool.
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// In a browser.
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// It is up to the place to provide the chrome. It is up to the pane to
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// provide the HTML.
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#ifdef XP_WIN32
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#define STR_CPANECX "CPaneCX"
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#else
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#define STR_CPANECX_HI "CPaneCXHi"
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#define STR_CPANECX_LO "CPaneCXLo"
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#endif
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CPaneCX::CPaneCX(HWND hPane, BOOL bDestroyOnWMDestroy)
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{
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MWContext *pContext = GetContext();
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m_MM = MM_TEXT;
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m_bDestroyOnWMDestroy = bDestroyOnWMDestroy;
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m_hPane = NULL;
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m_pPrevProc = NULL;
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m_hOwnDC = NULL;
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m_hClassDC = NULL;
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m_hSubstDC = NULL;
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m_cxType = Pane;
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pContext->type = MWContextPane;
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m_pDrawable = NULL;
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m_pOffscreenDrawable = NULL;
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m_pOnscreenDrawable = NULL;
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m_pResizeReloadTimeout = NULL;
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m_bDynamicScrollBars = TRUE;
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m_bAlwaysShowScrollBars = FALSE;
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m_bHScrollBarOn = FALSE;
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m_bVScrollBarOn = FALSE;
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#ifdef _WIN32
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m_iWheelDelta = 0;
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#endif
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#ifdef XP_WIN16
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m_hTextElementSegment = NULL;
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m_lpTextElementHeap = NULL;
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#endif
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// If a pane was passed in, perform the step manually.
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SetPane(hPane);
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}
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CPaneCX::~CPaneCX()
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{
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SetPane(NULL);
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// Destroy the compositor associated with the context
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MWContext *pContext = GetContext();
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if (pContext && pContext->compositor) {
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CL_DestroyCompositor(pContext->compositor);
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pContext->compositor = NULL;
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}
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if(m_pOnscreenDrawable) {
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delete m_pOnscreenDrawable;
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m_pOnscreenDrawable = NULL;
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}
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if(m_pOffscreenDrawable) {
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delete m_pOffscreenDrawable;
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m_pOffscreenDrawable = NULL;
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}
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m_pDrawable = NULL;
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#ifdef XP_WIN16
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if(m_hTextElementSegment) {
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::GlobalFree(m_hTextElementSegment);
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m_hTextElementSegment = NULL;
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m_lpTextElementHeap = NULL;
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}
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#endif
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}
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// Set current pane for context.
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// Can switch panes from one to another (wow).
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// Can pass in NULL, which detaches current pane.
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HWND CPaneCX::SetPane(HWND hPane)
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{
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HWND hRetval = GetPane();
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if(hRetval) {
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// Need to release all cached information.
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CacheDCInfo(FALSE);
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// Need to unsubclass old window.
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BOOL bSub = SubClass(hRetval, FALSE);
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ASSERT(bSub);
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// Destroy any pending reload.
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if(m_pResizeReloadTimeout) {
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FE_ClearTimeout(m_pResizeReloadTimeout);
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m_pResizeReloadTimeout = NULL;
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}
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}
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m_hPane = hPane;
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if(m_hPane) {
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// Need to subclass new window.
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BOOL bSub = SubClass(m_hPane, TRUE);
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ASSERT(bSub);
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// Need to gather all cached information.
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CacheDCInfo(TRUE);
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// Reflect current scroll bar state.
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::EnableScrollBar(m_hPane, SB_VERT, ESB_ENABLE_BOTH);
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::EnableScrollBar(m_hPane, SB_HORZ, ESB_ENABLE_BOTH);
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::SetScrollRange(m_hPane, SB_VERT, 0, SCROLL_UNITS, FALSE);
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::SetScrollRange(m_hPane, SB_HORZ, 0, SCROLL_UNITS, FALSE);
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::ShowScrollBar(m_hPane, SB_BOTH, FALSE);
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ShowScrollBars(SB_HORZ, IsHScrollBarOn());
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ShowScrollBars(SB_VERT, IsVScrollBarOn());
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}
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// Shouldn't have a substituted DC at this point.
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ASSERT(m_hSubstDC == NULL);
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return(hRetval);
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}
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void CPaneCX::CacheDCInfo(BOOL bCache)
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{
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if(bCache) {
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// Determine window class name.
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char aClassName[128];
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memset(aClassName, 0, sizeof(aClassName));
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int iLen = GetClassName(GetPane(), aClassName, sizeof(aClassName));
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ASSERT(iLen && iLen < sizeof(aClassName));
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// Fill in WNDCLASS.
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// This needs to be expanded if we ever attempt to take over
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// windows outside of our instance.
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WNDCLASS PaneClass;
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memset(&PaneClass, 0, sizeof(PaneClass));
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BOOL bClass = GetClassInfo(AfxGetInstanceHandle(), aClassName, &PaneClass);
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ASSERT(bClass);
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// OwnDC
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if(PaneClass.style & CS_OWNDC) {
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SetOwnDC(TRUE);
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m_hOwnDC = ::GetDC(GetPane());
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}
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else if(PaneClass.style & CS_CLASSDC) {
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SetClassDC(TRUE);
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m_hClassDC = ::GetDC(GetPane());
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}
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else {
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SetOwnDC(FALSE);
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SetClassDC(FALSE);
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}
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}
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else {
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// Any persistent data needs to go.
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ClearFontCache();
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// OwnDC
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SetOwnDC(FALSE);
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m_hOwnDC = NULL;
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SetClassDC(FALSE);
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m_hClassDC = NULL;
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}
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}
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BOOL CPaneCX::IsOwnDC() const
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{
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BOOL bRetval = FALSE;
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if(m_pDrawable && (m_pDrawable == m_pOffscreenDrawable)) {
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bRetval = FALSE;
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}
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else if(m_hSubstDC) {
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// We want substituted DCs to act like OwnDCs
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// until unsubstituted.
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bRetval = TRUE;
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}
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else {
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bRetval = CDCCX::IsOwnDC();
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}
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return(bRetval);
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}
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BOOL CPaneCX::IsClassDC() const
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{
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BOOL bRetval = FALSE;
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if(m_pDrawable && (m_pDrawable == m_pOffscreenDrawable)) {
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bRetval = FALSE;
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}
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else {
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bRetval = CDCCX::IsClassDC();
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}
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return(bRetval);
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}
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HDC CPaneCX::SubstituteDC(HDC hDC)
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{
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// Flush cached info for old DC (take away any attributes
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// we may have assumed as OwnDC).
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// This could be further optimized if the font code
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// didn't hold onto the DC for the life of a font.
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if(m_hSubstDC) {
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ClearFontCache();
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}
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HDC hRetval = m_hSubstDC;
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m_hSubstDC = hDC;
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// Set new mapping mode for new DC.
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if(m_hSubstDC) {
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SetMappingMode(m_hSubstDC);
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}
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return(hRetval);
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}
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// Return appropriate HDC
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HDC CPaneCX::GetContextDC()
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{
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HDC hRetval = NULL;
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if(m_pDrawable && (m_pDrawable == m_pOffscreenDrawable)) {
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hRetval = m_pDrawable->GetDrawableDC();
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}
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else if(m_hSubstDC) {
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hRetval = m_hSubstDC;
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}
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else if(IsClassDC()) {
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hRetval = m_hClassDC;
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}
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else if(CDCCX::IsOwnDC()) {
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hRetval = m_hOwnDC;
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}
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else if(GetPane()) {
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hRetval = ::GetDC(GetPane());
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SetMappingMode(hRetval);
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}
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return(hRetval);
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}
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// Release appropriate HDC
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void CPaneCX::ReleaseContextDC(HDC hDC)
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{
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if(hDC != m_hSubstDC && IsClassDC() == FALSE && CDCCX::IsOwnDC() == FALSE && (!m_pOffscreenDrawable || hDC != m_pOffscreenDrawable->GetDrawableDC())) {
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ASSERT(GetPane());
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::ReleaseDC(GetPane(), hDC);
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}
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}
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void CPaneCX::DestroyContext()
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{
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if(IsDestroyed() == FALSE) {
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if(m_pResizeReloadTimeout) {
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FE_ClearTimeout(m_pResizeReloadTimeout);
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m_pResizeReloadTimeout = NULL;
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}
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}
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CDCCX::DestroyContext();
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}
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void CPaneCX::Initialize(BOOL bOwnDC, RECT *pRect, BOOL bInitialPalette, BOOL bNewMemDC)
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{
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MWContext *pContext = GetContext();
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// Top of the document.
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m_lOrgX = 0;
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m_lOrgY = 0;
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// Call base.
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CDCCX::Initialize(bOwnDC, pRect, bInitialPalette, bNewMemDC);
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// Get the DC.
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HDC hDC = GetContextDC();
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SetMappingMode(hDC);
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// Init compositor.
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CL_Drawable *pOnscreenDrawable = NULL;
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CL_Drawable *pOffscreenDrawable = NULL;
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m_pOnscreenDrawable = new COnscreenDrawable(hDC, this);
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pOnscreenDrawable = CL_NewDrawable(
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CASTUINT(m_lWidth),
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CASTUINT(m_lHeight),
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CL_WINDOW,
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&wfe_drawable_vtable,
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(void *)m_pOnscreenDrawable);
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m_pOffscreenDrawable = COffscreenDrawable::AllocateOffscreen(hDC, GetPalette(), this);
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pOffscreenDrawable = CL_NewDrawable(
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CASTUINT(m_lWidth),
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CASTUINT(m_lHeight),
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CL_BACKING_STORE,
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&wfe_drawable_vtable,
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(void *)m_pOffscreenDrawable);
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GetContext()->compositor = CL_NewCompositor(
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pOnscreenDrawable,
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pOffscreenDrawable,
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m_lOrgX,
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m_lOrgY,
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m_lWidth,
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m_lHeight,
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20);
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m_pDrawable = (CDrawable *)m_pOnscreenDrawable;
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// If a grid cell, select the palette.
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if(IsGridCell() && GetPalette()) {
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::SelectPalette(hDC, GetPalette(), FALSE);
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int iError = ::RealizePalette(hDC);
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}
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ReleaseContextDC(hDC);
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hDC = NULL;
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}
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void CPaneCX::SetDrawable(MWContext *pContext, CL_Drawable *pDrawable)
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{
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if(pDrawable) {
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CDrawable *pFEDrawable = (CDrawable *)CL_GetDrawableClientData(pDrawable);
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m_pDrawable = pFEDrawable;
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}
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else {
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m_pDrawable = m_pOnscreenDrawable;
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}
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}
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FE_Region CPaneCX::GetDrawingClip()
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{
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if (m_pDrawable) {
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return m_pDrawable->GetClip();
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}
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else {
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return NULL;
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}
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}
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void CPaneCX::GetDrawingOrigin(int32 *plOrgX, int32 *plOrgY)
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{
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if(m_pDrawable) {
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m_pDrawable->GetOrigin(plOrgX, plOrgY);
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}
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else {
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*plOrgX = *plOrgY = 0;
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}
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}
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void CPaneCX::RefreshArea(int32 lLeft, int32 lTop, uint32 ulWidth, uint32 ulHeight)
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{
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MWContext *pContext = GetContext();
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// Simple validation, can pass in 0 for all.
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if(ulWidth == 0) {
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ulWidth = GetDocumentWidth() - lLeft;
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}
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if(ulHeight == 0) {
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ulHeight = GetDocumentHeight() - lTop;
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}
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XP_Rect rect;
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if(pContext->compositor) {
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rect.left = lLeft - m_lOrgX;
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rect.top = lTop - m_lOrgY;
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rect.right = rect.left + ulWidth;
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rect.bottom = rect.top + ulHeight;
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CL_RefreshWindowRect(pContext->compositor, &rect);
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}
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#ifdef DDRAW
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LTRB tempRect(rect.left, rect.top, rect.right, rect.bottom);
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tempRect.left += GetWindowsXPos();
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tempRect.right += GetWindowsXPos();
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tempRect.top += GetWindowsYPos();
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tempRect.bottom += GetWindowsYPos();
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BltToScreen(tempRect, NULL);
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#endif
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}
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// Window handle is about to go away; let go of it.
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void CPaneCX::AftWMDestroy(PaneMessage *pMessage)
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{
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SetPane(NULL);
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// If we are supposed to clean up ourselves, do so now.
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if(m_bDestroyOnWMDestroy) {
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DestroyContext();
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}
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}
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void CPaneCX::PreWMErasebkgnd(PaneMessage *pMessage)
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{
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HDC hEraseDC = (HDC)pMessage->wParam;
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HDC hOldSubst = NULL;
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if(hEraseDC != m_hClassDC && hEraseDC != m_hOwnDC) {
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hOldSubst = SubstituteDC(hEraseDC);
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}
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// Layers may want to handle erasing of background.
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MWContext *pContext = GetContext();
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if(pContext->compositor && CL_GetCompositorEnabled(pContext->compositor)) {
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pMessage->bSetRetval = TRUE;
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pMessage->lRetval = (LPARAM)TRUE;
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}
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else {
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RECT rClip;
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|
::GetClipBox(hEraseDC, &rClip);
|
||
|
pMessage->bSetRetval = TRUE;
|
||
|
pMessage->lRetval = (LPARAM)_EraseBkgnd(hEraseDC, rClip, GetOriginX(), GetOriginY());
|
||
|
}
|
||
|
|
||
|
if(hEraseDC != m_hClassDC && hEraseDC != m_hOwnDC) {
|
||
|
HDC hUnSubst = SubstituteDC(hOldSubst);
|
||
|
// Someone forget to unsubst their DC?
|
||
|
ASSERT(hUnSubst == hEraseDC);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreWMPaint(PaneMessage *pMessage)
|
||
|
{
|
||
|
pMessage->lRetval = NULL;
|
||
|
pMessage->bSetRetval = TRUE;
|
||
|
|
||
|
// Redirecting output in this fashion not supported yet.
|
||
|
ASSERT((HDC)pMessage->wParam == NULL);
|
||
|
|
||
|
BOOL bBeginPaint = ::GetUpdateRect(GetPane(), NULL, FALSE);
|
||
|
if(bBeginPaint) {
|
||
|
PAINTSTRUCT ps;
|
||
|
HDC hPaintDC = ::BeginPaint(GetPane(), &ps);
|
||
|
uint32 ulWidth = ps.rcPaint.right - ps.rcPaint.left;
|
||
|
uint32 ulHeight = ps.rcPaint.bottom - ps.rcPaint.top;
|
||
|
if(ulWidth && ulHeight) {
|
||
|
HDC hOldSubst = NULL;
|
||
|
if(hPaintDC != m_hClassDC && hPaintDC != m_hOwnDC) {
|
||
|
hOldSubst = SubstituteDC(hPaintDC);
|
||
|
}
|
||
|
RefreshArea(ps.rcPaint.left + GetOriginX(), ps.rcPaint.top + GetOriginY(), ulWidth, ulHeight);
|
||
|
if(hPaintDC != m_hClassDC && hPaintDC != m_hOwnDC) {
|
||
|
HDC hUnSubst = SubstituteDC(hOldSubst);
|
||
|
// Someone forget to unsubst their DC?
|
||
|
ASSERT(hUnSubst == hPaintDC);
|
||
|
}
|
||
|
}
|
||
|
::EndPaint(GetPane(), &ps);
|
||
|
}
|
||
|
else {
|
||
|
// No update area.
|
||
|
// Possible internal draw request (see RedrawWindow).
|
||
|
// Not supported until needed.
|
||
|
ASSERT(0);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::AftWMSize(PaneMessage *pMessage)
|
||
|
{
|
||
|
UINT uSizeType = (UINT)pMessage->wParam;
|
||
|
int iWidth = LOWORD(pMessage->lParam);
|
||
|
int iHeight = HIWORD(pMessage->lParam);
|
||
|
|
||
|
// Only care if resized visibly.
|
||
|
if(uSizeType == SIZE_MAXIMIZED || uSizeType == SIZE_RESTORED) {
|
||
|
BOOL bNiceReload = TRUE;
|
||
|
|
||
|
// Let frame contexts decide on their own if they would like to reload.
|
||
|
if(IsFrameContext()) {
|
||
|
bNiceReload = FALSE;
|
||
|
}
|
||
|
|
||
|
int iNewWidth = iWidth;
|
||
|
if(IsVScrollBarOn()) {
|
||
|
iNewWidth += sysInfo.m_iScrollWidth;
|
||
|
}
|
||
|
int iNewHeight = iHeight;
|
||
|
if(IsHScrollBarOn()) {
|
||
|
iNewHeight += sysInfo.m_iScrollHeight;
|
||
|
}
|
||
|
|
||
|
/* Resize the compositor's notion of the window area
|
||
|
* as well as the size of the background layer. This
|
||
|
* might all be moot, because we might relayout, but
|
||
|
* that doesn't happen all the time (e.g. HTML dialogs).
|
||
|
* We want the composited area - without the scrollbars
|
||
|
*/
|
||
|
MWContext *pContext = GetContext();
|
||
|
if (pContext->compositor) {
|
||
|
CL_Layer *bglayer, *doclayer;
|
||
|
CL_Compositor *compositor = pContext->compositor;
|
||
|
|
||
|
CL_ResizeCompositorWindow(compositor, iNewWidth, iNewHeight);
|
||
|
doclayer = CL_GetCompositorRoot(compositor);
|
||
|
if (doclayer) {
|
||
|
bglayer = CL_GetLayerChildByName(doclayer, LO_BACKGROUND_LAYER_NAME);
|
||
|
if (bglayer) {
|
||
|
XP_Rect bbox;
|
||
|
int32 layerWidth, layerHeight;
|
||
|
|
||
|
/* Make sure that the new dimensions are larger than the */
|
||
|
/* original ones before resizing the layer. We still want */
|
||
|
/* the layer size to be the maximum of the window and the */
|
||
|
/* document dimensions. */
|
||
|
CL_GetLayerBbox(bglayer, &bbox);
|
||
|
layerWidth = bbox.right - bbox.left;
|
||
|
layerHeight = bbox.bottom - bbox.top;
|
||
|
|
||
|
if (iNewWidth > layerWidth)
|
||
|
layerWidth = iNewWidth;
|
||
|
if (iNewHeight > layerHeight)
|
||
|
layerHeight = iNewHeight;
|
||
|
|
||
|
CL_ResizeLayer(bglayer, layerWidth, layerHeight);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
m_lWidth = (int32)iNewWidth;
|
||
|
m_lHeight = (int32)iNewHeight;
|
||
|
|
||
|
// If we've resized bigger than the page,
|
||
|
// and we are scrolled, reset our position.
|
||
|
if((m_lDocWidth > 0) && (m_lDocWidth < m_lWidth) && (m_lOrgX != 0)) {
|
||
|
m_lOrgX = 0;
|
||
|
}
|
||
|
if((m_lDocHeight > 0) &&(m_lDocHeight < m_lHeight) && (m_lOrgY != 0)) {
|
||
|
m_lOrgY = 0;
|
||
|
}
|
||
|
|
||
|
RealizeScrollBars();
|
||
|
|
||
|
if(bNiceReload) {
|
||
|
#ifdef RELAYOUT_WITHOUT_RELOAD
|
||
|
LO_RelayoutOnResize(GetDocumentContext(), m_lWidth, m_lHeight, m_lLeftMargin, m_lTopMargin);
|
||
|
#else
|
||
|
NiceResizeReload();
|
||
|
#endif
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void resize_reload_timeout(void *closure)
|
||
|
{
|
||
|
CPaneCX *cw = VOID2CX(closure, CPaneCX);
|
||
|
cw->m_pResizeReloadTimeout = NULL;
|
||
|
cw->NiceReload();
|
||
|
}
|
||
|
|
||
|
// Wait to do the reload for just a wee bit.
|
||
|
void CPaneCX::NiceResizeReload()
|
||
|
{
|
||
|
// If there was already a resize timeout that hasn't fired, cancel it,
|
||
|
// since that means resize messages are still arriving close together
|
||
|
if(m_pResizeReloadTimeout) {
|
||
|
FE_ClearTimeout(m_pResizeReloadTimeout);
|
||
|
m_pResizeReloadTimeout = NULL;
|
||
|
}
|
||
|
|
||
|
// Can't reload anything
|
||
|
if(!CanCreateUrlFromHist()) {
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
m_pResizeReloadTimeout = FE_SetTimeout(resize_reload_timeout, this, 200);
|
||
|
}
|
||
|
|
||
|
int CPaneCX::GetUrl(URL_Struct *pUrl, FO_Present_Types iFormatOut, BOOL bReallyLoading, BOOL bForceNew)
|
||
|
{
|
||
|
// Stop any reload timers, no need.
|
||
|
if(m_pResizeReloadTimeout) {
|
||
|
FE_ClearTimeout(m_pResizeReloadTimeout);
|
||
|
m_pResizeReloadTimeout = NULL;
|
||
|
}
|
||
|
return(CDCCX::GetUrl(pUrl, iFormatOut, bReallyLoading, bForceNew));
|
||
|
}
|
||
|
|
||
|
void CPaneCX::LayoutNewDocument(MWContext *pContext, URL_Struct *pURL, int32 *pWidth, int32 *pHeight, int32 *pmWidth, int32 *pmHeight)
|
||
|
{
|
||
|
m_lOrgY = 0;
|
||
|
m_lOrgX = 0;
|
||
|
|
||
|
// Stop any reload timers, no need.
|
||
|
if(m_pResizeReloadTimeout) {
|
||
|
FE_ClearTimeout(m_pResizeReloadTimeout);
|
||
|
m_pResizeReloadTimeout = NULL;
|
||
|
}
|
||
|
|
||
|
// Call the base.
|
||
|
CDCCX::LayoutNewDocument(pContext, pURL, pWidth, pHeight, pmWidth, pmHeight);
|
||
|
|
||
|
// Initialize Scrollbars for new document.
|
||
|
ShowScrollBars(SB_BOTH, FALSE);
|
||
|
m_nPageY = SCROLL_UNITS;
|
||
|
m_nPageX = SCROLL_UNITS;
|
||
|
|
||
|
#ifdef XP_WIN32
|
||
|
SCROLLINFO siY;
|
||
|
siY.cbSize = sizeof(SCROLLINFO);
|
||
|
siY.fMask = SIF_PAGE;
|
||
|
siY.nPage = 0;
|
||
|
if(GetPane() && IsVScrollBarOn() == TRUE) {
|
||
|
::SetScrollInfo(GetPane(), SB_VERT, &siY, FALSE);
|
||
|
}
|
||
|
|
||
|
SCROLLINFO siX;
|
||
|
siX.cbSize = sizeof(SCROLLINFO);
|
||
|
siX.fMask = SIF_PAGE;
|
||
|
siX.nPage = 0;
|
||
|
if(GetPane() && IsHScrollBarOn() == TRUE) {
|
||
|
::SetScrollInfo(GetPane(), SB_HORZ, &siX, FALSE);
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
if(*pmWidth || *pmHeight) {
|
||
|
// Layout wants to set these.
|
||
|
m_lLeftMargin = *pmWidth;
|
||
|
m_lTopMargin = *pmHeight;
|
||
|
m_lRightMargin = -1 * *pmWidth;
|
||
|
m_lBottomMargin = -1 * *pmHeight;
|
||
|
}
|
||
|
else {
|
||
|
// Set these to the old defaults which I'll never understand.
|
||
|
m_lLeftMargin = LEFT_MARGIN;
|
||
|
m_lTopMargin = TOP_MARGIN;
|
||
|
m_lRightMargin = RIGHT_MARGIN;
|
||
|
m_lBottomMargin = BOTTOM_MARGIN;
|
||
|
}
|
||
|
*pmWidth = m_lLeftMargin;
|
||
|
*pmHeight = m_lTopMargin;
|
||
|
|
||
|
// When we report the size to layout, we must always take care to subtract
|
||
|
// for the size of the scrollbars if we have dynamic or always on
|
||
|
// scrollers.
|
||
|
if(DynamicScrollBars() == FALSE && IsHScrollBarOn() == FALSE && IsVScrollBarOn() == FALSE) {
|
||
|
*pWidth = GetWidth();
|
||
|
*pHeight = GetHeight();
|
||
|
}
|
||
|
else {
|
||
|
*pWidth = GetWidth() - sysInfo.m_iScrollWidth;
|
||
|
*pHeight = GetHeight() - sysInfo.m_iScrollHeight;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::FinishedLayout(MWContext *pContext)
|
||
|
{
|
||
|
CDCCX::FinishedLayout(pContext);
|
||
|
|
||
|
// Have the scroll bars correctly set themselves.
|
||
|
RealizeScrollBars();
|
||
|
}
|
||
|
|
||
|
void CPaneCX::ShowScrollBars(int iBars, BOOL bShow) {
|
||
|
// Don't do this if we don't have a view.
|
||
|
if(GetPane() != NULL) {
|
||
|
// Turning them off or on?
|
||
|
if(bShow == FALSE) {
|
||
|
// Decide which set of scrollers, if any, that we need to take
|
||
|
// action on, and take that action.
|
||
|
if(iBars == SB_BOTH) {
|
||
|
m_bVScrollBarOn = FALSE;
|
||
|
m_bHScrollBarOn = FALSE;
|
||
|
::ShowScrollBar(GetPane(), SB_BOTH, FALSE);
|
||
|
}
|
||
|
else if((iBars == SB_VERT) && IsVScrollBarOn()) {
|
||
|
m_bVScrollBarOn = FALSE;
|
||
|
::ShowScrollBar(GetPane(), SB_VERT, FALSE);
|
||
|
}
|
||
|
else if((iBars == SB_HORZ) && IsHScrollBarOn()) {
|
||
|
m_bHScrollBarOn = FALSE;
|
||
|
::ShowScrollBar(GetPane(), SB_HORZ, FALSE);
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
// Decide which set of scrollers, if any, that we need to take
|
||
|
// action on, and take that action.
|
||
|
if(iBars == SB_BOTH) {
|
||
|
m_bVScrollBarOn = TRUE;
|
||
|
m_bHScrollBarOn = TRUE;
|
||
|
::ShowScrollBar(GetPane(), SB_BOTH, TRUE);
|
||
|
}
|
||
|
else if((iBars == SB_VERT) && !IsVScrollBarOn()) {
|
||
|
m_bVScrollBarOn = TRUE;
|
||
|
::ShowScrollBar(GetPane(), SB_VERT, TRUE);
|
||
|
}
|
||
|
else if((iBars == SB_HORZ) && !IsHScrollBarOn()) {
|
||
|
m_bHScrollBarOn = TRUE;
|
||
|
::ShowScrollBar(GetPane(), SB_HORZ, TRUE);
|
||
|
}
|
||
|
}
|
||
|
// We have just shown/hidden a scroll bar.
|
||
|
// Update the window to avoid flash (reduces overall invalidated
|
||
|
// rectangle, except when we show/hide both at the same time).
|
||
|
::UpdateWindow(GetPane());
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::RealizeScrollBars(int32 *pX, int32 *pY)
|
||
|
{
|
||
|
if(m_lDocHeight && m_lDocWidth) {
|
||
|
if(AlwaysShowScrollBars()) {
|
||
|
ShowScrollBars(SB_BOTH, TRUE);
|
||
|
}
|
||
|
|
||
|
// Are we checking for dynamic scroll bars?
|
||
|
if(DynamicScrollBars() == TRUE) {
|
||
|
// If the document fits in our client area, or if we have children, turn them off.
|
||
|
// If the document is larger than our client area, turn them on.
|
||
|
int iSB = -1;
|
||
|
BOOL bShow = FALSE;
|
||
|
BOOL vScrollBar = FALSE;
|
||
|
BOOL hScrollBar = FALSE;
|
||
|
if (m_lHeight >= m_lDocHeight && m_lWidth >= m_lDocWidth && (IsVScrollBarOn() == TRUE || IsHScrollBarOn() == TRUE)) {
|
||
|
ShowScrollBars(SB_BOTH, FALSE);
|
||
|
}
|
||
|
else if(m_lHeight < m_lDocHeight && m_lWidth < m_lDocWidth && (IsVScrollBarOn() == FALSE || IsHScrollBarOn() == FALSE)) {
|
||
|
ShowScrollBars(SB_BOTH, TRUE);
|
||
|
}
|
||
|
else {
|
||
|
if(m_lHeight >= m_lDocHeight && IsVScrollBarOn() == TRUE) {
|
||
|
ShowScrollBars(SB_VERT, FALSE);
|
||
|
}
|
||
|
else if(m_lHeight < m_lDocHeight && IsVScrollBarOn() == FALSE) {
|
||
|
ShowScrollBars(SB_VERT, TRUE);
|
||
|
}
|
||
|
if(m_lWidth >= m_lDocWidth && IsHScrollBarOn() == TRUE) {
|
||
|
ShowScrollBars(SB_HORZ, FALSE);
|
||
|
}
|
||
|
else if(m_lWidth < m_lDocWidth && IsHScrollBarOn() == FALSE) {
|
||
|
ShowScrollBars(SB_HORZ, TRUE);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// See if we're going to be changing the values.
|
||
|
BOOL bRefreshHorz = FALSE;
|
||
|
BOOL bRefreshVert = FALSE;
|
||
|
if(pX != NULL && m_lOrgX != *pX) {
|
||
|
m_lOrgX = *pX;
|
||
|
bRefreshHorz = TRUE;
|
||
|
}
|
||
|
if(pY != NULL && m_lOrgY != *pY) {
|
||
|
m_lOrgY = *pY;
|
||
|
bRefreshVert = TRUE;
|
||
|
}
|
||
|
|
||
|
// Make sure that the current origins are within the document iWidth
|
||
|
// and iHeight.
|
||
|
// In the event that they are exactly the same, make sure to refresh
|
||
|
// the scroll bar anyhow (this will happen if you scroll to the
|
||
|
// bottom of a page, go to a new page, and then go back; your scroll
|
||
|
// bars are wrong).
|
||
|
int32 lCalcHeight = m_lDocHeight - m_lHeight + (IsHScrollBarOn() ? sysInfo.m_iScrollHeight : 0);
|
||
|
if(m_lOrgY >= lCalcHeight && lCalcHeight > 0) {
|
||
|
m_lOrgY = lCalcHeight; // always show one screen
|
||
|
bRefreshVert = TRUE;
|
||
|
}
|
||
|
int32 lCalcWidth = m_lDocWidth - m_lWidth + (IsVScrollBarOn() ? sysInfo.m_iScrollWidth : 0);
|
||
|
if(m_lOrgX >= lCalcWidth && lCalcWidth > 0) {
|
||
|
m_lOrgX = lCalcWidth; // always leave some visible
|
||
|
bRefreshHorz = TRUE;
|
||
|
}
|
||
|
|
||
|
#ifdef XP_WIN32
|
||
|
// Special fun for proportional scrollbars.
|
||
|
SCROLLINFO siY;
|
||
|
siY.cbSize = sizeof(SCROLLINFO);
|
||
|
siY.fMask = SIF_PAGE;
|
||
|
// If the document is longer than a single page
|
||
|
if(m_lDocHeight > m_lHeight && IsVScrollBarOn() == TRUE) {
|
||
|
siY.nPage = m_lHeight * SCROLL_UNITS / m_lDocHeight;
|
||
|
if(GetPane()) {
|
||
|
::SetScrollInfo(GetPane(), SB_VERT, &siY, FALSE);
|
||
|
if((UINT)m_nPageY != SCROLL_UNITS - siY.nPage) {
|
||
|
m_nPageY = SCROLL_UNITS - siY.nPage;
|
||
|
bRefreshVert = TRUE;
|
||
|
}
|
||
|
} else
|
||
|
bRefreshVert = TRUE;
|
||
|
}
|
||
|
else if(IsVScrollBarOn() == TRUE) {
|
||
|
siY.nPage = SCROLL_UNITS;
|
||
|
if(GetPane()) {
|
||
|
::SetScrollInfo(GetPane(), SB_VERT, &siY, FALSE);
|
||
|
m_nPageY = SCROLL_UNITS;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
SCROLLINFO siX;
|
||
|
siX.cbSize = sizeof(SCROLLINFO);
|
||
|
siX.fMask = SIF_PAGE;
|
||
|
// If the document is wider than a single screen
|
||
|
if((m_lDocWidth != 0) && (m_lDocWidth > m_lWidth) && IsHScrollBarOn() == TRUE) {
|
||
|
siX.nPage = m_lWidth * SCROLL_UNITS / m_lDocWidth;
|
||
|
if(GetPane()) {
|
||
|
::SetScrollInfo(GetPane(), SB_HORZ, &siX, FALSE);
|
||
|
if((UINT)m_nPageX != SCROLL_UNITS - siX.nPage) {
|
||
|
m_nPageX = SCROLL_UNITS - siX.nPage;
|
||
|
bRefreshHorz = TRUE;
|
||
|
}
|
||
|
} else
|
||
|
bRefreshHorz = TRUE;
|
||
|
}
|
||
|
else if(IsHScrollBarOn() == TRUE) {
|
||
|
siX.nPage = SCROLL_UNITS;
|
||
|
if(GetPane()) {
|
||
|
::SetScrollInfo(GetPane(), SB_HORZ, &siX, FALSE);
|
||
|
m_nPageX = SCROLL_UNITS;
|
||
|
}
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
// Figure the thumb position.
|
||
|
float fYPos = 0.0f;
|
||
|
float fXPos = 0.0f;
|
||
|
if(m_lDocHeight != 0) {
|
||
|
long lScrollHeight = m_lDocHeight - m_lHeight;
|
||
|
if(lScrollHeight != 0)
|
||
|
fYPos = (float)m_lOrgY / (float) lScrollHeight;
|
||
|
else
|
||
|
fYPos = 1.0f;
|
||
|
}
|
||
|
if(m_lDocWidth != 0) {
|
||
|
long lScrollWidth = m_lDocWidth - m_lWidth;
|
||
|
if(lScrollWidth != 0)
|
||
|
fXPos = (float)m_lOrgX / (float) lScrollWidth;
|
||
|
else
|
||
|
fXPos = 1.0f;
|
||
|
}
|
||
|
|
||
|
// See if we should turn off the scroll bars.
|
||
|
|
||
|
if(m_lDocWidth <= m_lWidth && IsHScrollBarOn() == TRUE && GetPane()) {
|
||
|
::EnableScrollBar(GetPane(), SB_HORZ, ESB_DISABLE_BOTH);
|
||
|
}
|
||
|
else if(IsHScrollBarOn() == TRUE && GetPane()) {
|
||
|
::EnableScrollBar(GetPane(), SB_HORZ, ESB_ENABLE_BOTH);
|
||
|
|
||
|
// only reset if different to avoid flashing on NT and Win16
|
||
|
int iNewPosX = (int) (fXPos * m_nPageX);
|
||
|
if(iNewPosX != ::GetScrollPos(GetPane(), SB_HORZ) || bRefreshHorz == TRUE) {
|
||
|
::SetScrollPos(GetPane(), SB_HORZ, iNewPosX, TRUE);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
|
||
|
if(m_lDocHeight <= m_lHeight && IsVScrollBarOn() == TRUE && GetPane()) {
|
||
|
::EnableScrollBar(GetPane(), SB_VERT, ESB_DISABLE_BOTH);
|
||
|
}
|
||
|
else if(IsVScrollBarOn() == TRUE && GetPane()) {
|
||
|
::EnableScrollBar(GetPane(), SB_VERT, ESB_ENABLE_BOTH);
|
||
|
|
||
|
// only reset if different to avoid flashing on NT and Win16
|
||
|
int iNewPosY = (int) (fYPos * m_nPageY);
|
||
|
if(iNewPosY != ::GetScrollPos(GetPane(), SB_VERT) || bRefreshVert == TRUE) {
|
||
|
::SetScrollPos(GetPane(), SB_VERT, iNewPosY, TRUE);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
MWContext *pContext = GetContext();
|
||
|
if(pContext->compositor) {
|
||
|
CL_ScrollCompositorWindow(pContext->compositor, m_lOrgX, m_lOrgY);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::SetDocDimension(MWContext *pContext, int iLocation, int32 lWidth, int32 lLength) {
|
||
|
// Call the base.
|
||
|
CDCCX::SetDocDimension(pContext, iLocation, lWidth, lLength);
|
||
|
RealizeScrollBars();
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreWMVScroll(PaneMessage *pMsg)
|
||
|
{
|
||
|
#ifdef XP_WIN16
|
||
|
UINT uSBCode = (UINT)pMsg->wParam;
|
||
|
UINT uPos = LOWORD(pMsg->lParam);
|
||
|
HWND hwndCtrl = (HWND)HIWORD(pMsg->lParam);
|
||
|
#else
|
||
|
UINT uSBCode = LOWORD(pMsg->wParam);
|
||
|
UINT uPos = HIWORD(pMsg->wParam);
|
||
|
HWND hwndCtrl = (HWND)pMsg->lParam;
|
||
|
#endif
|
||
|
|
||
|
Scroll(SB_VERT, uSBCode, uPos, hwndCtrl);
|
||
|
|
||
|
pMsg->lRetval = NULL;
|
||
|
pMsg->bSetRetval = TRUE;
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreWMHScroll(PaneMessage *pMsg)
|
||
|
{
|
||
|
#ifdef XP_WIN16
|
||
|
UINT uSBCode = (UINT)pMsg->wParam;
|
||
|
UINT uPos = LOWORD(pMsg->lParam);
|
||
|
HWND hwndCtrl = (HWND)HIWORD(pMsg->lParam);
|
||
|
#else
|
||
|
UINT uSBCode = LOWORD(pMsg->wParam);
|
||
|
UINT uPos = HIWORD(pMsg->wParam);
|
||
|
HWND hwndCtrl = (HWND)pMsg->lParam;
|
||
|
#endif
|
||
|
|
||
|
Scroll(SB_HORZ, uSBCode, uPos, hwndCtrl);
|
||
|
|
||
|
pMsg->lRetval = NULL;
|
||
|
pMsg->bSetRetval = TRUE;
|
||
|
}
|
||
|
|
||
|
void CPaneCX::AftWMMouseActivate(PaneMessage *pMsg)
|
||
|
{
|
||
|
BOOL bSetFocus = FALSE;
|
||
|
if(pMsg->bSetRetval) {
|
||
|
// Check to see if we need to activate.
|
||
|
if(pMsg->lRetval == MA_ACTIVATE || pMsg->lRetval == MA_ACTIVATEANDEAT) {
|
||
|
bSetFocus = TRUE;
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
// Real class didn't handle, take some action.
|
||
|
pMsg->bSetRetval = TRUE;
|
||
|
pMsg->lRetval = MA_ACTIVATE;
|
||
|
bSetFocus = TRUE;
|
||
|
}
|
||
|
|
||
|
if(bSetFocus) {
|
||
|
if(::GetFocus() != GetPane()) {
|
||
|
::SetFocus(GetPane());
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#if defined(XP_WIN32) && _MSC_VER >= 1100
|
||
|
void CPaneCX::PreWMMouseWheel(PaneMessage *pMsg)
|
||
|
{
|
||
|
// Increase the delta.
|
||
|
m_iWheelDelta += MOUSEWHEEL_DELTA(pMsg->wParam, pMsg->lParam);
|
||
|
|
||
|
// Number of lines to scroll.
|
||
|
UINT uScroll = intelli.ScrollLines();
|
||
|
|
||
|
// Direction.
|
||
|
BOOL bForward = TRUE;
|
||
|
if(m_iWheelDelta < 0) {
|
||
|
bForward = FALSE;
|
||
|
}
|
||
|
|
||
|
// Scroll bar code to use.
|
||
|
UINT uSBCode = SB_LINEUP;
|
||
|
|
||
|
if(m_iWheelDelta / WHEEL_DELTA) {
|
||
|
if(uScroll == WHEEL_PAGESCROLL) {
|
||
|
if(bForward) {
|
||
|
uSBCode = SB_PAGEUP;
|
||
|
}
|
||
|
else {
|
||
|
uSBCode = SB_PAGEDOWN;
|
||
|
}
|
||
|
uScroll = 1;
|
||
|
}
|
||
|
else {
|
||
|
if(bForward) {
|
||
|
uSBCode = SB_LINEUP;
|
||
|
}
|
||
|
else {
|
||
|
uSBCode = SB_LINEDOWN;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Take off scroll increment.
|
||
|
UINT uLoops = 0;
|
||
|
while(m_iWheelDelta / WHEEL_DELTA) {
|
||
|
if(bForward) {
|
||
|
m_iWheelDelta -= WHEEL_DELTA;
|
||
|
}
|
||
|
else {
|
||
|
m_iWheelDelta += WHEEL_DELTA;
|
||
|
}
|
||
|
uLoops++;
|
||
|
}
|
||
|
|
||
|
// Do it.
|
||
|
if(uLoops) {
|
||
|
Scroll(SB_VERT, uSBCode, 0, NULL, uScroll * uLoops);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
pMsg->lRetval = (LPARAM)1;
|
||
|
pMsg->bSetRetval = TRUE;
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreWMHackedMouseWheel(PaneMessage *pMsg)
|
||
|
{
|
||
|
// Shunt.
|
||
|
WPARAM wSubst = pMsg->wParam;
|
||
|
pMsg->wParam = wSubst << 16;
|
||
|
PreWMMouseWheel(pMsg);
|
||
|
pMsg->wParam = wSubst;
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
void CPaneCX::Scroll(int iBars, UINT uSBCode, UINT uPos, HWND hCtrl, UINT uTimes)
|
||
|
{
|
||
|
// Provide a way to keep flow of control but not return early.
|
||
|
BOOL bContinue = TRUE;
|
||
|
|
||
|
if((iBars == SB_VERT || iBars == SB_BOTH) && IsVScrollBarOn() && GetHeight() < GetDocumentHeight()) {
|
||
|
// Calc an area leaving at least one page.
|
||
|
// Align the pixel and twips boundary, and check again to see if we're really
|
||
|
// doing anything.
|
||
|
// Account for Horiz scroll bar getting in the way.
|
||
|
int32 lScrollable = GetDocumentHeight() - GetHeight();
|
||
|
if(IsHScrollBarOn()) {
|
||
|
lScrollable += sysInfo.m_iScrollHeight;
|
||
|
}
|
||
|
if(lScrollable > 0) {
|
||
|
int32 lOldOrgY = GetOriginY();
|
||
|
int32 lScrollTwips = 0;
|
||
|
double fYPos = 0.0f;
|
||
|
int32 lTrack = 0;
|
||
|
|
||
|
// Figure out what we're doing.
|
||
|
switch(uSBCode) {
|
||
|
case SB_PAGEUP:
|
||
|
lScrollTwips = (-1 * GetHeight()) + VSCROLL_LINE;
|
||
|
break;
|
||
|
case SB_PAGEDOWN:
|
||
|
lScrollTwips = GetHeight() - VSCROLL_LINE;
|
||
|
break;
|
||
|
case SB_LINEUP:
|
||
|
lScrollTwips = -1 * VSCROLL_LINE;
|
||
|
break;
|
||
|
case SB_LINEDOWN:
|
||
|
lScrollTwips = VSCROLL_LINE;
|
||
|
break;
|
||
|
case SB_THUMBPOSITION:
|
||
|
case SB_THUMBTRACK:
|
||
|
// User is dragging the thumb tack.
|
||
|
// Only move if we've moved more than a single pixel, or the display
|
||
|
// gets messed up
|
||
|
fYPos = (double)uPos / (double)GetPageY();
|
||
|
lTrack = (int32)((fYPos * lScrollable)+0.5);
|
||
|
break;
|
||
|
case SB_TOP:
|
||
|
lScrollTwips = -1 * GetOriginY();
|
||
|
break;
|
||
|
case SB_BOTTOM:
|
||
|
lScrollTwips = lScrollable - GetOriginY();
|
||
|
break;
|
||
|
default:
|
||
|
bContinue = FALSE;
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
if(bContinue) {
|
||
|
// Check to see if we need to do further math....
|
||
|
if(uSBCode != SB_THUMBPOSITION && uSBCode != SB_THUMBTRACK) {
|
||
|
lTrack = GetOriginY();
|
||
|
lTrack += lScrollTwips * (int32)uTimes;
|
||
|
|
||
|
if (lTrack < 0)
|
||
|
lTrack = 0;
|
||
|
else if(lTrack > lScrollable)
|
||
|
lTrack = lScrollable;
|
||
|
}
|
||
|
|
||
|
// Position the scroll bar on an even pixel boundary
|
||
|
RealizeScrollBars(NULL, &lTrack);
|
||
|
|
||
|
// Figure the distance we actually scrolled.
|
||
|
int32 lPixAct = lOldOrgY - GetOriginY();
|
||
|
if(lPixAct) {
|
||
|
::ScrollWindowEx(GetPane(), 0, (int) lPixAct, NULL, NULL, NULL, NULL, SW_INVALIDATE |
|
||
|
SW_ERASE | SW_SCROLLCHILDREN);
|
||
|
::UpdateWindow(GetPane());
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Reset for horizontal test.
|
||
|
bContinue = TRUE;
|
||
|
|
||
|
if((iBars == SB_HORZ || iBars == SB_BOTH) && IsHScrollBarOn() && GetWidth() < GetDocumentWidth()) {
|
||
|
// Calc an area leaving at least one page.
|
||
|
// Align the pixel and twips boundary, and check again to see if we're really
|
||
|
// doing anything.
|
||
|
// Account for vertical scroller getting in the way.
|
||
|
int32 lScrollable = GetDocumentWidth() - GetWidth();
|
||
|
if(IsVScrollBarOn()) {
|
||
|
lScrollable += sysInfo.m_iScrollWidth;
|
||
|
}
|
||
|
if(lScrollable > 0) {
|
||
|
int32 lOldOrgX = GetOriginX();
|
||
|
int32 lScrollTwips = 0;
|
||
|
double fXPos = 0.0f;
|
||
|
int32 lTrack = 0;
|
||
|
|
||
|
// Figure out what we're doing.
|
||
|
switch(uSBCode) {
|
||
|
case SB_PAGELEFT:
|
||
|
lScrollTwips = -1 * GetWidth();
|
||
|
break;
|
||
|
case SB_PAGERIGHT:
|
||
|
lScrollTwips = GetWidth();
|
||
|
break;
|
||
|
case SB_LINELEFT:
|
||
|
case SB_LINERIGHT:
|
||
|
lScrollTwips = HSCROLL_LINE;
|
||
|
if(uSBCode == SB_LINELEFT) {
|
||
|
lScrollTwips *= -1;
|
||
|
}
|
||
|
break;
|
||
|
case SB_THUMBPOSITION:
|
||
|
case SB_THUMBTRACK:
|
||
|
// User is dragging the thumb tack.
|
||
|
// Only move if we've moved more than a single pixel, or the display
|
||
|
// gets messed up.
|
||
|
fXPos = (double)uPos / (double)GetPageX();
|
||
|
lTrack = (int32)((fXPos * lScrollable)+0.5);
|
||
|
break;
|
||
|
default:
|
||
|
bContinue = FALSE;
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
if(bContinue) {
|
||
|
// Check to see if we need to do further math....
|
||
|
if(uSBCode != SB_THUMBPOSITION && uSBCode != SB_THUMBTRACK) {
|
||
|
lTrack = GetOriginX();
|
||
|
lTrack += lScrollTwips * (int32)uTimes;
|
||
|
|
||
|
if(lTrack > lScrollable)
|
||
|
lTrack = lScrollable;
|
||
|
if(lTrack < 0)
|
||
|
lTrack = 0;
|
||
|
}
|
||
|
|
||
|
// Position the scroll bar.
|
||
|
RealizeScrollBars(&lTrack);
|
||
|
|
||
|
// Figure the distance we actually scrolled.
|
||
|
int32 lPixAct = lOldOrgX - GetOriginX();
|
||
|
if(lPixAct) {
|
||
|
::ScrollWindowEx(GetPane(), (int) lPixAct, 0, NULL, NULL, NULL, NULL, SW_INVALIDATE |
|
||
|
SW_ERASE | SW_SCROLLCHILDREN);
|
||
|
::UpdateWindow(GetPane());
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::GetWindowOffset(int32 *pX, int32 *pY)
|
||
|
{
|
||
|
RECT rWindow;
|
||
|
::GetWindowRect(GetPane(), &rWindow);
|
||
|
|
||
|
*pX = rWindow.left;
|
||
|
*pY = rWindow.top;
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
void CPaneCX::MakeElementVisible(int32 lX, int32 lY)
|
||
|
{
|
||
|
// Figure out if any element is there.
|
||
|
XY Point;
|
||
|
Point.x = lX;
|
||
|
Point.y = lY;
|
||
|
|
||
|
LO_Element *pElement = GetLayoutElement(Point, NULL);
|
||
|
if(pElement == NULL) {
|
||
|
SetDocPosition(GetContext(), FE_VIEW, lX, lY);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
// Figure up the coords of the element.
|
||
|
LTRB Rect;
|
||
|
LO_Any *pAny = &(pElement->lo_any);
|
||
|
Rect.left = pAny->x + pAny->x_offset;
|
||
|
Rect.top = pAny->y + pAny->y_offset;
|
||
|
Rect.right = Rect.left + pAny->width;
|
||
|
Rect.bottom = Rect.top + pAny->height;
|
||
|
|
||
|
// Is it currently Fully On Screen?
|
||
|
// Disregard the Y values (we'll want to scroll exactly on the Y, but perhaps not on the X).
|
||
|
// To the right?
|
||
|
if(Rect.left >= GetOriginX()) {
|
||
|
// To the left?
|
||
|
if(Rect.right <= GetOriginX() + GetWidth()) {
|
||
|
// It's on the X view.
|
||
|
// Use the current X origin.
|
||
|
lX = GetOriginX();
|
||
|
SetDocPosition(GetContext(), FE_VIEW, lX, lY);
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// X wasn't on screen fully, so we're going to use very exact values when scrolling
|
||
|
// for whatever effect this gives....
|
||
|
SetDocPosition(GetContext(), FE_VIEW, lX, lY);
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreNavCenterQueryPosition(PaneMessage *pMessage)
|
||
|
{
|
||
|
// Only handle if we're a NavCenter HTML Pane.
|
||
|
if(IsNavCenterHTMLPane()) {
|
||
|
NAVCENTPOS *pPos = (NAVCENTPOS *)pMessage->lParam;
|
||
|
|
||
|
// We like being at the bottom.
|
||
|
pPos->m_iYDisposition = INT_MAX;
|
||
|
|
||
|
// We like being this many units in size.
|
||
|
pPos->m_iYVector = 100;
|
||
|
|
||
|
// Handled.
|
||
|
pMessage->lRetval = NULL;
|
||
|
pMessage->bSetRetval = TRUE;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void CPaneCX::PreIdleUpdateCmdUI(PaneMessage *pMsg)
|
||
|
{
|
||
|
// Don't want to update CMD UI unless we have a frame parent.
|
||
|
// This effectively stops CMD UI in the NavCenter HTML pane
|
||
|
// from messing with the UI state when docked.
|
||
|
if(IsNavCenterHTMLPane()) {
|
||
|
// Handled.
|
||
|
pMsg->lRetval = NULL;
|
||
|
pMsg->bSetRetval = TRUE;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#ifdef XP_WIN16
|
||
|
HINSTANCE CPaneCX::GetSegment()
|
||
|
{
|
||
|
// Form elements on a per context basis receive their own segment.
|
||
|
HINSTANCE hRetval = NULL;
|
||
|
|
||
|
if(NULL == m_hTextElementSegment) {
|
||
|
m_hTextElementSegment = ::GlobalAlloc(GMEM_DDESHARE | GMEM_MOVEABLE, (UINT) 8 * 1024);
|
||
|
}
|
||
|
if(m_hTextElementSegment && NULL == m_lpTextElementHeap) {
|
||
|
// Initialize the segment.
|
||
|
m_lpTextElementHeap = ::GlobalLock(m_hTextElementSegment);
|
||
|
if(m_lpTextElementHeap) {
|
||
|
::LocalInit(HIWORD((LONG)m_lpTextElementHeap), 0, (WORD)(::GlobalSize(m_hTextElementSegment) - 16));
|
||
|
::UnlockSegment(HIWORD((LONG)m_lpTextElementHeap));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if(m_lpTextElementHeap) {
|
||
|
hRetval = (HINSTANCE)HIWORD((LONG)m_lpTextElementHeap);
|
||
|
}
|
||
|
|
||
|
return(hRetval);
|
||
|
}
|
||
|
#endif
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
|
||
|
LRESULT
|
||
|
CALLBACK
|
||
|
#ifndef _WIN32
|
||
|
_export
|
||
|
#endif
|
||
|
PaneProc(HWND hPane, UINT uMsg, WPARAM wParam, LPARAM lParam)
|
||
|
{
|
||
|
#ifdef XP_WIN32
|
||
|
const char *pPropName = STR_CPANECX; // Not a UI string.
|
||
|
#else
|
||
|
const char *pPropNameHi = STR_CPANECX_HI;
|
||
|
const char *pPropNameLo = STR_CPANECX_LO;
|
||
|
#endif
|
||
|
PaneMessage message(wParam, lParam);
|
||
|
|
||
|
// Get the property (which is a this pointer).
|
||
|
void *pvThis = NULL;
|
||
|
#ifdef XP_WIN32
|
||
|
pvThis = (void *)GetProp(hPane, pPropName);
|
||
|
#else
|
||
|
pvThis = (void *)MAKELONG(GetProp(hPane, pPropNameLo), GetProp(hPane, pPropNameHi));
|
||
|
#endif
|
||
|
if(pvThis) {
|
||
|
CPaneCX *pThis = VOID2CX(pvThis, CPaneCX);
|
||
|
|
||
|
// Messages handled BEFORE calling other window procedure.
|
||
|
// Make calls here when you don't care about the LRESULT
|
||
|
// of the normal message handler or don't want the normal
|
||
|
// message handler being called at all (by marking that
|
||
|
// the return value has been set).
|
||
|
switch(uMsg) {
|
||
|
case WM_PAINT:
|
||
|
pThis->PreWMPaint(&message);
|
||
|
break;
|
||
|
case WM_ERASEBKGND:
|
||
|
pThis->PreWMErasebkgnd(&message);
|
||
|
break;
|
||
|
case WM_VSCROLL:
|
||
|
pThis->PreWMVScroll(&message);
|
||
|
break;
|
||
|
case WM_HSCROLL:
|
||
|
pThis->PreWMHScroll(&message);
|
||
|
break;
|
||
|
case WM_NAVCENTER_QUERYPOSITION:
|
||
|
pThis->PreNavCenterQueryPosition(&message);
|
||
|
break;
|
||
|
case WM_IDLEUPDATECMDUI:
|
||
|
pThis->PreIdleUpdateCmdUI(&message);
|
||
|
break;
|
||
|
#if defined(XP_WIN32) && _MSC_VER >= 1100
|
||
|
case WM_MOUSEWHEEL:
|
||
|
pThis->PreWMMouseWheel(&message);
|
||
|
break;
|
||
|
#endif
|
||
|
default:
|
||
|
// Handle non constant messages here.
|
||
|
#if defined(XP_WIN32) && _MSC_VER >= 1100
|
||
|
if(uMsg == msg_MouseWheel) {
|
||
|
pThis->PreWMHackedMouseWheel(&message);
|
||
|
}
|
||
|
#endif
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
// Call previous window proc.
|
||
|
if(!message.bSetRetval) {
|
||
|
WNDPROC pPrevProc = pThis->GetSubclassedProc();
|
||
|
if(pPrevProc) {
|
||
|
message.lRetval = CallWindowProc(pPrevProc, hPane, uMsg, wParam, lParam);
|
||
|
message.bSetRetval = TRUE;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// Notifications handled AFTER calling other window procedure.
|
||
|
// Make calls here when you care about the LRESULT
|
||
|
// of any above message handler, or want to handle a
|
||
|
// message if no one else did before the default window
|
||
|
// procedure is invoked..
|
||
|
switch(uMsg) {
|
||
|
case WM_SIZE:
|
||
|
pThis->AftWMSize(&message);
|
||
|
break;
|
||
|
case WM_DESTROY:
|
||
|
pThis->AftWMDestroy(&message);
|
||
|
break;
|
||
|
case WM_MOUSEACTIVATE:
|
||
|
pThis->AftWMMouseActivate(&message);
|
||
|
break;
|
||
|
default:
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
// Default handler if nothing happened.
|
||
|
if(!message.bSetRetval) {
|
||
|
message.lRetval = DefWindowProc(hPane, uMsg, wParam, lParam);
|
||
|
message.bSetRetval = TRUE;
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
// Either someone subclassed and we need to unsubclass in
|
||
|
// their stack, or this is getting called before we
|
||
|
// set the property on the window.
|
||
|
// Don't crash or do anything stupid, but we currently don't
|
||
|
// attempt to handle.
|
||
|
message.lRetval = DefWindowProc(hPane, uMsg, wParam, lParam);
|
||
|
message.bSetRetval = TRUE;
|
||
|
}
|
||
|
|
||
|
ASSERT(message.bSetRetval);
|
||
|
return(message.lRetval);
|
||
|
}
|
||
|
|
||
|
// Subclass or unsubclass a window.
|
||
|
BOOL CPaneCX::SubClass(HWND hWnd, BOOL bSubClass)
|
||
|
{
|
||
|
BOOL bRetval = FALSE;
|
||
|
#ifdef XP_WIN32
|
||
|
const char *pPropName = STR_CPANECX; // Not a UI string.
|
||
|
#else
|
||
|
const char *pPropNameHi = STR_CPANECX_HI; // Not a UI string.
|
||
|
const char *pPropNameLo = STR_CPANECX_LO; // Not a UI string.
|
||
|
#endif
|
||
|
|
||
|
if(hWnd) {
|
||
|
if(bSubClass) {
|
||
|
ASSERT(!m_pPrevProc);
|
||
|
|
||
|
// Make sure no one else is already doing this window.
|
||
|
// We could add the support by making each property
|
||
|
// name unique by pid() then ptr, but no need right now.
|
||
|
if(!
|
||
|
#ifdef XP_WIN32
|
||
|
(::GetProp(hWnd, pPropName))
|
||
|
#else
|
||
|
(::GetProp(hWnd, pPropNameLo) || ::GetProp(hWnd, pPropNameHi))
|
||
|
#endif
|
||
|
) {
|
||
|
m_pPrevProc = (WNDPROC)::SetWindowLong(hWnd, GWL_WNDPROC, (LONG)PaneProc);
|
||
|
if(m_pPrevProc) {
|
||
|
BOOL bAddProp;
|
||
|
#ifdef XP_WIN32
|
||
|
bAddProp = ::SetProp(hWnd, pPropName, (HANDLE)this);
|
||
|
#else
|
||
|
bAddProp = ::SetProp(hWnd, pPropNameHi, (HANDLE)HIWORD(this));
|
||
|
if(bAddProp) {
|
||
|
bAddProp = ::SetProp(hWnd, pPropNameLo, (HANDLE)LOWORD(this));
|
||
|
}
|
||
|
#endif
|
||
|
if(bAddProp) {
|
||
|
bRetval = TRUE;
|
||
|
}
|
||
|
else {
|
||
|
LONG lCheck = ::SetWindowLong(hWnd, GWL_WNDPROC, (LONG)m_pPrevProc);
|
||
|
m_pPrevProc = NULL;
|
||
|
ASSERT(lCheck == (LONG)PaneProc);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
else {
|
||
|
ASSERT(m_pPrevProc);
|
||
|
|
||
|
void *pThis = NULL;
|
||
|
#ifdef XP_WIN32
|
||
|
pThis = (void *)::RemoveProp(hWnd, pPropName);
|
||
|
#else
|
||
|
pThis = (void *)MAKELONG(::RemoveProp(hWnd, pPropNameLo), ::RemoveProp(hWnd, pPropNameHi));
|
||
|
#endif
|
||
|
ASSERT(pThis && pThis == (void *)this);
|
||
|
if(pThis && pThis == (void *)this) {
|
||
|
LONG lOurProc = ::GetWindowLong(hWnd, GWL_WNDPROC);
|
||
|
ASSERT(lOurProc && lOurProc == (LONG)PaneProc);
|
||
|
if(lOurProc && lOurProc == (LONG)PaneProc) {
|
||
|
LONG lCheck = ::SetWindowLong(hWnd, GWL_WNDPROC, (LONG)m_pPrevProc);
|
||
|
ASSERT(lCheck && lCheck == (LONG)PaneProc);
|
||
|
if(lCheck && lCheck == (LONG)PaneProc) {
|
||
|
bRetval = TRUE;
|
||
|
}
|
||
|
}
|
||
|
m_pPrevProc = NULL;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return(bRetval);
|
||
|
}
|
||
|
|