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Sweden-Number/windows/mdi.c

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/* MDI.C
*
* Copyright 1994, Bob Amstadt
* 1995,1996 Alex Korobka
*
* This file contains routines to support MDI features.
*
* Notes: Windows keeps ID of MDI menu item in the wIDenu field
* of corresponding MDI child.
*
* Basic child activation routine is MDI_ChildActivate and
* SetWindowPos(childHwnd,...) implicitly calls it if SWP_NOACTIVATE
* is not used.
*
* To fix:
* Sticky client crollbars
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>
#include "xmalloc.h"
#include "windows.h"
#include "win.h"
#include "nonclient.h"
#include "mdi.h"
#include "user.h"
#include "menu.h"
#include "stackframe.h"
#include "sysmetrics.h"
#include "stddebug.h"
#include "debug.h"
void MDI_UpdateFrameText(WND *, HWND, BOOL, LPCSTR);
BOOL MDI_AugmentFrameMenu(MDICLIENTINFO*, WND *, HWND);
BOOL MDI_RestoreFrameMenu(WND *, HWND);
void ScrollChildren(HWND , UINT , WPARAM , LPARAM );
void CalcChildScroll(HWND, WORD);
/* ----------------- declarations ----------------- */
static LONG MDI_ChildActivate(WND* ,HWND );
/* -------- Miscellaneous service functions ----------
*
* MDI_GetChildByID
*/
static HWND MDI_GetChildByID(WND* wndPtr,int id)
{
for (wndPtr = wndPtr->child; wndPtr; wndPtr = wndPtr->next)
if (wndPtr->wIDmenu == id) return wndPtr->hwndSelf;
return 0;
}
/**********************************************************************
* MDI_MenuAppendItem
*/
#ifdef SUPERFLUOUS_FUNCTIONS
static BOOL MDI_MenuAppendItem(WND *clientWnd, HWND hWndChild)
{
char buffer[128];
MDICLIENTINFO *clientInfo = (MDICLIENTINFO*)clientWnd->wExtra;
WND *wndPtr = WIN_FindWndPtr(hWndChild);
LPSTR lpWndText = (LPSTR) USER_HEAP_LIN_ADDR(wndPtr->hText);
int n = sprintf(buffer, "%d ",
clientInfo->nActiveChildren);
if( !clientInfo->hWindowMenu ) return 0;
if( lpWndText )
strncpy(buffer + n, lpWndText, sizeof(buffer) - n - 1);
return AppendMenu(clientInfo->hWindowMenu,MF_STRING,
wndPtr->wIDmenu, MAKE_SEGPTR(buffer) );
}
#endif
/**********************************************************************
* MDI_MenuModifyItem
*/
static BOOL MDI_MenuModifyItem(WND* clientWnd, HWND hWndChild )
{
char buffer[128];
MDICLIENTINFO *clientInfo = (MDICLIENTINFO*)clientWnd->wExtra;
WND *wndPtr = WIN_FindWndPtr(hWndChild);
LPSTR lpWndText = (LPSTR) USER_HEAP_LIN_ADDR(wndPtr->hText);
UINT n = sprintf(buffer, "%d ",
wndPtr->wIDmenu - clientInfo->idFirstChild + 1);
BOOL bRet = 0;
if( !clientInfo->hWindowMenu ) return 0;
if( lpWndText ) lstrcpyn(buffer + n, lpWndText, sizeof(buffer) - n );
n = GetMenuState(clientInfo->hWindowMenu,wndPtr->wIDmenu ,MF_BYCOMMAND);
bRet = ModifyMenu(clientInfo->hWindowMenu , wndPtr->wIDmenu ,
MF_BYCOMMAND | MF_STRING, wndPtr->wIDmenu ,
MAKE_SEGPTR(buffer) );
CheckMenuItem(clientInfo->hWindowMenu ,wndPtr->wIDmenu , n & MF_CHECKED);
return bRet;
}
/**********************************************************************
* MDI_MenuDeleteItem
*/
static BOOL MDI_MenuDeleteItem(WND* clientWnd, HWND hWndChild )
{
char buffer[128];
MDICLIENTINFO *clientInfo = (MDICLIENTINFO*)clientWnd->wExtra;
WND *wndPtr = WIN_FindWndPtr(hWndChild);
LPSTR lpWndText;
UINT index = 0,id,n;
if( !clientInfo->nActiveChildren ||
!clientInfo->hWindowMenu ) return 0;
id = wndPtr->wIDmenu;
DeleteMenu(clientInfo->hWindowMenu,id,MF_BYCOMMAND);
/* walk the rest of MDI children to prevent gaps in the id
* sequence and in the menu child list
*/
for( index = id+1; index <= clientInfo->nActiveChildren +
clientInfo->idFirstChild; index++ )
{
wndPtr = WIN_FindWndPtr(MDI_GetChildByID(clientWnd,index));
if( !wndPtr )
{
dprintf_mdi(stddeb,"MDIMenuDeleteItem: no window for id=%i\n",index);
continue;
}
/* set correct id */
wndPtr->wIDmenu--;
n = sprintf(buffer, "%d ",index - clientInfo->idFirstChild);
lpWndText = (LPSTR) USER_HEAP_LIN_ADDR(wndPtr->hText);
if( lpWndText )
strncpy(buffer + n, lpWndText, sizeof(buffer) - n - 1);
/* change menu */
ModifyMenu(clientInfo->hWindowMenu ,index ,MF_BYCOMMAND | MF_STRING,
index - 1 , MAKE_SEGPTR(buffer) );
}
return 1;
}
/**********************************************************************
* MDI_GetWindow
*
* returns "activateable" child or zero
*/
HWND MDI_GetWindow(WND *clientWnd, HWND hWnd, WORD wTo )
{
MDICLIENTINFO *clientInfo = (MDICLIENTINFO*)clientWnd->wExtra;
WND *wndPtr, *pWnd, *pWndLast;
if( !hWnd ) hWnd = clientInfo->hwndActiveChild;
if( !(wndPtr = WIN_FindWndPtr(hWnd)) ) return 0;
pWnd = wndPtr;
pWndLast = NULL;
for (;;)
{
pWnd = pWnd->next;
if (!pWnd) pWnd = wndPtr->parent->child;
if (pWnd == wndPtr) /* not found */
{
if (!wTo || !pWndLast) return 0;
break;
}
if ((pWnd->dwStyle & WS_VISIBLE) &&
!(pWnd->dwStyle & WS_DISABLED)) /* found one */
{
pWndLast = pWnd;
if (!wTo) break;
}
}
return pWndLast ? pWndLast->hwndSelf : 0;
}
/**********************************************************************
* MDISetMenu
*/
HMENU MDISetMenu(HWND hwnd, BOOL fRefresh, HMENU hmenuFrame, HMENU hmenuWindow)
{
WND *w = WIN_FindWndPtr(hwnd);
MDICLIENTINFO *ci;
dprintf_mdi(stddeb, "WM_MDISETMENU: %04x %04x %04x %04x\n",
hwnd, fRefresh, hmenuFrame, hmenuWindow);
ci = (MDICLIENTINFO *) w->wExtra;
if (!fRefresh)
{
HWND hwndFrame = GetParent(hwnd);
HMENU oldFrameMenu = GetMenu(hwndFrame);
if( ci->flagChildMaximized && hmenuFrame && hmenuFrame!=oldFrameMenu )
MDI_RestoreFrameMenu(w->parent, ci->flagChildMaximized );
if( hmenuWindow && hmenuWindow!=ci->hWindowMenu )
{
/* delete menu items from ci->hWindowMenu
* and add them to hmenuWindow */
INT i = GetMenuItemCount(ci->hWindowMenu) - 1;
INT pos = GetMenuItemCount(hmenuWindow) + 1;
AppendMenu(hmenuWindow,MF_SEPARATOR,0,(SEGPTR)0);
if( ci->nActiveChildren )
{
INT j = i - ci->nActiveChildren + 1;
char buffer[100];
UINT id,state;
for( ; i >= j ; i-- )
{
id = GetMenuItemID(ci->hWindowMenu,i );
state = GetMenuState(ci->hWindowMenu,i,MF_BYPOSITION);
GetMenuString(ci->hWindowMenu, i, buffer, 100, MF_BYPOSITION);
DeleteMenu(ci->hWindowMenu, i , MF_BYPOSITION);
InsertMenu(hmenuWindow, pos, MF_BYPOSITION | MF_STRING,
id, MAKE_SEGPTR(buffer));
CheckMenuItem(hmenuWindow ,pos , MF_BYPOSITION | (state & MF_CHECKED));
}
}
/* remove separator */
DeleteMenu(ci->hWindowMenu, i, MF_BYPOSITION);
ci->hWindowMenu = hmenuWindow;
}
if( hmenuFrame && hmenuFrame!=oldFrameMenu)
{
SetMenu(hwndFrame, hmenuFrame);
if( ci->flagChildMaximized )
MDI_AugmentFrameMenu(ci, w->parent, ci->flagChildMaximized );
return oldFrameMenu;
}
}
return 0;
}
/**********************************************************************
* MDIIconArrange
*/
WORD MDIIconArrange(HWND parent)
{
return ArrangeIconicWindows(parent); /* Any reason why the */
/* existing icon arrange */
/* can't be used here? */
/* -DRP */
}
/* ------------------ MDI child window functions ---------------------- */
/**********************************************************************
* MDICreateChild
*/
HWND MDICreateChild(WND *w, MDICLIENTINFO *ci, HWND parent, LPARAM lParam )
{
MDICREATESTRUCT *cs = (MDICREATESTRUCT *)PTR_SEG_TO_LIN(lParam);
HWND hwnd;
WORD wIDmenu = ci->idFirstChild + ci->nActiveChildren;
int spacing;
char* lpstrDef="junk!";
/*
* Create child window
*/
cs->style &= (WS_MINIMIZE | WS_MAXIMIZE | WS_HSCROLL | WS_VSCROLL);
/* The child windows should probably */
/* stagger, shouldn't they? -DRP */
spacing = GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYFRAME);
cs->x = ci->nActiveChildren * spacing;
cs->y = ci->nActiveChildren * spacing;
/* this menu is needed to set a check mark in MDI_ChildActivate */
AppendMenu(ci->hWindowMenu ,MF_STRING ,wIDmenu, MAKE_SEGPTR(lpstrDef) );
ci->nActiveChildren++;
hwnd = CreateWindow( cs->szClass, cs->szTitle,
WS_CHILD | WS_BORDER | WS_CAPTION | WS_CLIPSIBLINGS |
WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_SYSMENU |
WS_THICKFRAME | WS_VISIBLE | cs->style,
cs->x, cs->y, cs->cx, cs->cy, parent,
(HMENU)(DWORD)(WORD)wIDmenu, w->hInstance,
(SEGPTR)lParam);
if (hwnd)
{
MDI_MenuModifyItem(w ,hwnd);
dprintf_mdi(stddeb, "MDICreateChild: created child - %04x\n",hwnd);
}
else
{
ci->nActiveChildren--;
DeleteMenu(ci->hWindowMenu,wIDmenu,MF_BYCOMMAND);
}
return hwnd;
}
/**********************************************************************
* MDI_ChildGetMinMaxInfo
*
*/
void MDI_ChildGetMinMaxInfo(WND* clientWnd, HWND hwnd, MINMAXINFO* lpMinMax )
{
WND* childWnd = WIN_FindWndPtr(hwnd);
RECT rect = clientWnd->rectClient;
MapWindowPoints(clientWnd->parent->hwndSelf,
((MDICLIENTINFO*)clientWnd->wExtra)->self, (LPPOINT)&rect, 2);
AdjustWindowRectEx(&rect, childWnd->dwStyle, 0, childWnd->dwExStyle);
lpMinMax->ptMaxSize.x = rect.right -= rect.left;
lpMinMax->ptMaxSize.y = rect.bottom -= rect.top;
lpMinMax->ptMaxPosition.x = rect.left;
lpMinMax->ptMaxPosition.y = rect.top;
}
/**********************************************************************
* MDI_SwitchActiveChild
*
* Notes: SetWindowPos sends WM_CHILDACTIVATE to the child window that is
* being activated
*
* wTo is basically lParam of WM_MDINEXT message or explicit
* window handle
*/
void MDI_SwitchActiveChild(HWND clientHwnd, HWND childHwnd, BOOL wTo )
{
WND *w = WIN_FindWndPtr(clientHwnd);
HWND hwndTo = 0;
HWND hwndPrev = 0;
MDICLIENTINFO *ci;
hwndTo = MDI_GetWindow(w,childHwnd,(WORD)wTo);
ci = (MDICLIENTINFO *) w->wExtra;
dprintf_mdi(stddeb, "MDI_SwitchActiveChild: from %04x, to %04x\n",childHwnd,hwndTo);
if ( !hwndTo ) return;
hwndPrev = ci->hwndActiveChild;
if ( hwndTo != hwndPrev )
{
BOOL bSA = 0;
if( ci->flagChildMaximized )
{
bSA = 1;
w->dwStyle &= ~WS_VISIBLE;
}
SetWindowPos( hwndTo, HWND_TOP, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE );
if( !wTo && hwndPrev )
{
SetWindowPos( hwndPrev, HWND_BOTTOM, 0, 0, 0, 0,
SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE);
}
if( bSA )
ShowWindow( clientHwnd, SW_SHOW );
}
}
/**********************************************************************
* MDIDestroyChild
*/
HWND MDIDestroyChild(WND *w_parent, MDICLIENTINFO *ci, HWND parent,
HWND child, BOOL flagDestroy)
{
WND *childPtr = WIN_FindWndPtr(child);
if( childPtr )
{
if( child == ci->hwndActiveChild )
{
MDI_SwitchActiveChild(parent,child,0);
if( child == ci->hwndActiveChild )
{
ShowWindow( child, SW_HIDE);
if( child == ci->flagChildMaximized )
{
MDI_RestoreFrameMenu(w_parent->parent, child);
ci->flagChildMaximized = 0;
MDI_UpdateFrameText(w_parent->parent,parent,TRUE,NULL);
}
MDI_ChildActivate(w_parent,0);
}
MDI_MenuDeleteItem(w_parent, child);
}
ci->nActiveChildren--;
dprintf_mdi(stddeb,"MDIDestroyChild: child destroyed - %04x\n",child);
if (flagDestroy)
{
DestroyWindow(child);
PostMessage(parent,WM_MDICALCCHILDSCROLL,0,0L);
ci->sbRecalc |= (SB_BOTH+1);
}
}
return 0;
}
/**********************************************************************
* MDI_ChildActivate
*
* Note: hWndChild is NULL when last child is being destroyed
*/
LONG MDI_ChildActivate(WND *clientPtr, HWND hWndChild)
{
MDICLIENTINFO *clientInfo = (MDICLIENTINFO*)clientPtr->wExtra;
HWND prevActiveWnd = clientInfo->hwndActiveChild;
WND *wndPtr = WIN_FindWndPtr( hWndChild );
WND *wndPrev = WIN_FindWndPtr( prevActiveWnd );
BOOL isActiveFrameWnd = 0;
if( hWndChild == prevActiveWnd ) return 0L;
if( wndPtr )
if( wndPtr->dwStyle & WS_DISABLED ) return 0L;
dprintf_mdi(stddeb,"MDI_ChildActivate: %04x\n", hWndChild);
if( GetActiveWindow() == clientPtr->parent->hwndSelf )
isActiveFrameWnd = TRUE;
/* deactivate prev. active child */
if( wndPrev )
{
SendMessage( prevActiveWnd, WM_NCACTIVATE, FALSE, 0L );
#ifdef WINELIB32
SendMessage( prevActiveWnd, WM_MDIACTIVATE, (WPARAM)prevActiveWnd,
(LPARAM)hWndChild);
#else
SendMessage( prevActiveWnd, WM_MDIACTIVATE, FALSE,
MAKELONG(hWndChild,prevActiveWnd));
#endif
/* uncheck menu item */
if( clientInfo->hWindowMenu )
CheckMenuItem( clientInfo->hWindowMenu,
wndPrev->wIDmenu, 0);
}
/* set appearance */
if( clientInfo->flagChildMaximized )
if( clientInfo->flagChildMaximized != hWndChild )
if( hWndChild )
{
clientInfo->hwndActiveChild = hWndChild;
ShowWindow( hWndChild, SW_SHOWMAXIMIZED);
}
else
ShowWindow( clientInfo->hwndActiveChild,
SW_SHOWNORMAL );
clientInfo->hwndActiveChild = hWndChild;
/* check if we have any children left */
if( !hWndChild )
{
if( isActiveFrameWnd )
SetFocus( clientInfo->self );
return 0;
}
/* check menu item */
if( clientInfo->hWindowMenu )
CheckMenuItem( clientInfo->hWindowMenu,
wndPtr->wIDmenu, MF_CHECKED);
/* bring active child to the top */
SetWindowPos( hWndChild, 0,0,0,0,0, SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE);
if( isActiveFrameWnd )
{
SendMessage( hWndChild, WM_NCACTIVATE, TRUE, 0L);
if( GetFocus() == clientInfo->self )
SendMessage( clientInfo->self, WM_SETFOCUS,
(WPARAM)clientInfo->self, 0L );
else
SetFocus( clientInfo->self );
}
#ifdef WINELIB32
SendMessage( hWndChild, WM_MDIACTIVATE, (WPARAM)hWndChild,
(LPARAM)prevActiveWnd );
#else
SendMessage( hWndChild, WM_MDIACTIVATE, TRUE,
MAKELONG(prevActiveWnd,hWndChild) );
#endif
return 1;
}
/**********************************************************************
* MDI_BuildWCL
*
* iTotal returns number of children available for tiling or cascading
*/
MDIWCL* MDI_BuildWCL(WND* clientWnd, int* iTotal)
{
MDIWCL *listTop,*listNext;
WND *childWnd;
if (!(listTop = (MDIWCL*)malloc( sizeof(MDIWCL) ))) return NULL;
listTop->hChild = clientWnd->child ? clientWnd->child->hwndSelf : 0;
listTop->prev = NULL;
*iTotal = 1;
/* build linked list from top child to bottom */
childWnd = WIN_FindWndPtr( listTop->hChild );
while( childWnd && childWnd->next )
{
listNext = (MDIWCL*)xmalloc(sizeof(MDIWCL));
if( (childWnd->dwStyle & WS_DISABLED) ||
(childWnd->dwStyle & WS_MINIMIZE) ||
!(childWnd->dwStyle & WS_VISIBLE) )
{
listTop->hChild = 0;
(*iTotal)--;
}
listNext->hChild = childWnd->next->hwndSelf;
listNext->prev = listTop;
listTop = listNext;
(*iTotal)++;
childWnd = childWnd->next;
}
if( (childWnd->dwStyle & WS_DISABLED) ||
(childWnd->dwStyle & WS_MINIMIZE) ||
!(childWnd->dwStyle & WS_VISIBLE) )
{
listTop->hChild = 0;
(*iTotal)--;
}
return listTop;
}
/* -------------------- MDI client window functions ------------------- */
/**********************************************************************
* CreateMDIMenuBitmap
*/
HBITMAP CreateMDIMenuBitmap(void)
{
HDC hDCSrc = CreateCompatibleDC(0);
HDC hDCDest = CreateCompatibleDC(hDCSrc);
HBITMAP hbClose = LoadBitmap(0, MAKEINTRESOURCE(OBM_CLOSE) );
HBITMAP hbCopy,hb_src,hb_dest;
hb_src = SelectObject(hDCSrc,hbClose);
hbCopy = CreateCompatibleBitmap(hDCSrc,SYSMETRICS_CXSIZE, SYSMETRICS_CYSIZE);
hb_dest = SelectObject(hDCDest,hbCopy);
BitBlt(hDCDest, 0, 0, SYSMETRICS_CXSIZE, SYSMETRICS_CYSIZE,
hDCSrc, SYSMETRICS_CXSIZE, 0, SRCCOPY);
SelectObject(hDCSrc,hb_src);
SelectObject(hDCDest,hb_dest);
DeleteObject(hbClose);
DeleteDC(hDCDest);
DeleteDC(hDCSrc);
return hbCopy;
}
/**********************************************************************
* MDICascade
*/
LONG MDICascade(HWND parent, MDICLIENTINFO *ci)
{
WND *clientWnd;
MDIWCL *listTop,*listPrev;
RECT rect;
int spacing, xsize, ysize;
int x, y;
int iToPosition = 0;
if (ci->flagChildMaximized)
ShowWindow( ci->flagChildMaximized, SW_NORMAL);
if (ci->nActiveChildren == 0) return 0;
GetClientRect(parent, &rect);
spacing = GetSystemMetrics(SM_CYCAPTION) + GetSystemMetrics(SM_CYFRAME);
ysize = rect.bottom - 8 * spacing;
xsize = rect.right - 8 * spacing;
dprintf_mdi(stddeb, "MDICascade: Client wnd at (%d,%d) - (%d,%d), spacing %d\n",
rect.left, rect.top, rect.right, rect.bottom, spacing);
clientWnd = WIN_FindWndPtr( parent );
listTop = MDI_BuildWCL(clientWnd,&iToPosition);
if( !listTop ) return 0;
x = 0;
y = 0;
/* walk list and move windows */
while ( listTop )
{
dprintf_mdi(stddeb, "MDICascade: move %04x to (%d,%d) size [%d,%d]\n",
listTop->hChild, x, y, xsize, ysize);
if( listTop->hChild )
{
SetWindowPos(listTop->hChild, 0, x, y, xsize, ysize,
SWP_DRAWFRAME | SWP_NOACTIVATE | SWP_NOZORDER);
x += spacing;
y += spacing;
}
listPrev = listTop->prev;
free(listTop);
listTop = listPrev;
}
if( iToPosition < ci->nActiveChildren )
ArrangeIconicWindows( parent );
return 0;
}
/**********************************************************************
* MDITile
*
*/
LONG MDITile(HWND parent, MDICLIENTINFO *ci,WORD wParam)
{
WND *wndClient = WIN_FindWndPtr(parent);
MDIWCL *listTop,*listPrev;
RECT rect;
int xsize, ysize;
int x, y;
int rows, columns;
int r, c;
int i;
int iToPosition = 0;
if (ci->flagChildMaximized)
ShowWindow(ci->flagChildMaximized, SW_NORMAL);
if (ci->nActiveChildren == 0) return 0;
listTop = MDI_BuildWCL(wndClient, &iToPosition);
dprintf_mdi(stddeb,"MDITile: %i windows to tile\n",iToPosition);
if( !listTop ) return 0;
/* tile children */
if ( iToPosition )
{
GetClientRect(parent, &rect);
rows = (int) sqrt((double) iToPosition);
columns = iToPosition / rows;
if (wParam == MDITILE_HORIZONTAL) /* version >= 3.1 */
{
i=rows;
rows=columns; /* exchange r and c */
columns=i;
}
/* hack */
if( iToPosition != ci->nActiveChildren)
{
y = rect.bottom - 2 * SYSMETRICS_CYICONSPACING - SYSMETRICS_CYICON;
rect.bottom = ( y - SYSMETRICS_CYICON < rect.top )? rect.bottom: y;
}
ysize = rect.bottom / rows;
xsize = rect.right / columns;
x = 0;
i = 0;
for (c = 1; c <= columns; c++)
{
if (c == columns)
{
rows = iToPosition - i;
ysize = rect.bottom / rows;
}
y = 0;
for (r = 1; r <= rows; r++, i++)
{
/* shouldn't happen but... */
if( !listTop )
break;
if( listTop->hChild )
{
SetWindowPos(listTop->hChild, 0, x, y, xsize, ysize,
SWP_DRAWFRAME | SWP_NOACTIVATE | SWP_NOZORDER);
y += ysize;
}
listPrev = listTop->prev;
free(listTop);
listTop = listPrev;
}
x += xsize;
}
}
/* free the rest if any */
while( listTop )
{
listPrev = listTop->prev;
free(listTop);
listTop = listPrev;
}
if (iToPosition < ci->nActiveChildren )
ArrangeIconicWindows( parent );
return 0;
}
/* ----------------------- Frame window ---------------------------- */
/**********************************************************************
* MDI_AugmentFrameMenu
*/
BOOL MDI_AugmentFrameMenu(MDICLIENTINFO* ci, WND *frame, HWND hChild)
{
WND* child = WIN_FindWndPtr(hChild);
HMENU hSysPopup = 0;
dprintf_mdi(stddeb,"MDI_AugmentFrameMenu: frame %p,child %04x\n",frame,hChild);
if( !frame->wIDmenu || !child->hSysMenu ) return 0;
hSysPopup = GetSystemMenu(hChild,FALSE);
dprintf_mdi(stddeb,"got popup %04x\n in sysmenu %04x",hSysPopup,child->hSysMenu);
if( !InsertMenu(frame->wIDmenu,0,MF_BYPOSITION | MF_BITMAP | MF_POPUP,
hSysPopup, (SEGPTR)(DWORD)ci->obmClose) )
return 0;
if( !AppendMenu(frame->wIDmenu,MF_HELP | MF_BITMAP,
SC_RESTORE, (SEGPTR)(DWORD)ci->obmRestore) )
{
RemoveMenu(frame->wIDmenu,0,MF_BYPOSITION);
return 0;
}
EnableMenuItem(hSysPopup, SC_SIZE, MF_BYCOMMAND | MF_GRAYED);
EnableMenuItem(hSysPopup, SC_MOVE, MF_BYCOMMAND | MF_GRAYED);
EnableMenuItem(hSysPopup, SC_MAXIMIZE, MF_BYCOMMAND | MF_GRAYED);
child->dwStyle &= ~WS_SYSMENU;
/* redraw frame */
SetWindowPos(frame->hwndSelf, 0,0,0,0,0, SWP_FRAMECHANGED | SWP_NOSIZE |
SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER );
return 1;
}
/**********************************************************************
* MDI_RestoreFrameMenu
*/
BOOL MDI_RestoreFrameMenu( WND *frameWnd, HWND hChild)
{
WND* child = WIN_FindWndPtr(hChild);
INT nItems = GetMenuItemCount(frameWnd->wIDmenu) - 1;
dprintf_mdi(stddeb,"MDI_RestoreFrameMenu: for child %04x\n",hChild);
if( GetMenuItemID(frameWnd->wIDmenu,nItems) != SC_RESTORE )
return 0;
child->dwStyle |= WS_SYSMENU;
RemoveMenu(frameWnd->wIDmenu,0,MF_BYPOSITION);
DeleteMenu(frameWnd->wIDmenu,nItems-1,MF_BYPOSITION);
/* redraw frame */
SetWindowPos(hChild, 0,0,0,0,0, SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE |
SWP_NOACTIVATE | SWP_NOZORDER );
return 1;
}
/**********************************************************************
* MDI_UpdateFrameText
*
* used when child window is maximized/restored
*
* Note: lpTitle can be NULL
*/
void MDI_UpdateFrameText(WND *frameWnd, HWND hClient, BOOL repaint, LPCSTR lpTitle)
{
char lpBuffer[MDI_MAXTITLELENGTH+1];
LPSTR lpText = NULL;
WND* clientWnd = WIN_FindWndPtr(hClient);
MDICLIENTINFO *ci = (MDICLIENTINFO *) clientWnd->wExtra;
dprintf_mdi(stddeb, "MDI: repaint %i, frameText %s\n", repaint, (lpTitle)?lpTitle:"NULL");
/* store new "default" title if lpTitle is not NULL */
if( lpTitle )
{
if( ci->hFrameTitle )
USER_HEAP_FREE( ci->hFrameTitle );
ci->hFrameTitle = USER_HEAP_ALLOC( strlen(lpTitle) + 1 );
lpText = (LPSTR) USER_HEAP_LIN_ADDR( ci->hFrameTitle );
strcpy( lpText, lpTitle );
}
else
lpText = (LPSTR) USER_HEAP_LIN_ADDR(ci->hFrameTitle);
if( ci->hFrameTitle )
{
WND* childWnd = WIN_FindWndPtr( ci->flagChildMaximized );
if( childWnd && childWnd->hText )
{
/* combine frame title and child title if possible */
LPCSTR lpBracket = " - [";
LPCSTR lpChildText = (LPCSTR) USER_HEAP_LIN_ADDR( childWnd->hText );
int i_frame_text_length = strlen(lpText);
int i_child_text_length = strlen(lpChildText);
strncpy( lpBuffer, lpText, MDI_MAXTITLELENGTH);
lpBuffer[MDI_MAXTITLELENGTH] = '\0';
if( i_frame_text_length + 5 < MDI_MAXTITLELENGTH )
{
strcat( lpBuffer, lpBracket );
if( i_frame_text_length + i_child_text_length + 5 < MDI_MAXTITLELENGTH )
{
strcat( lpBuffer, lpChildText );
*(short*)(lpBuffer + i_frame_text_length + i_child_text_length + 4) = (short)']';
}
else
{
memcpy( lpBuffer + i_frame_text_length + 4,
lpChildText,
MDI_MAXTITLELENGTH - i_frame_text_length - 4);
*(short*)(lpBuffer + MDI_MAXTITLELENGTH - 1) = (short)']';
}
}
}
else
{
strncpy(lpBuffer, lpText, MDI_MAXTITLELENGTH );
lpBuffer[MDI_MAXTITLELENGTH]='\0';
}
}
else
lpBuffer[0] = '\0';
if( frameWnd->hText )
USER_HEAP_FREE( frameWnd->hText );
frameWnd->hText = USER_HEAP_ALLOC( strlen(lpBuffer) + 1 );
lpText = (LPSTR) USER_HEAP_LIN_ADDR( frameWnd->hText );
strcpy( lpText, lpBuffer );
if( frameWnd->window )
XStoreName( display, frameWnd->window, lpBuffer );
if( repaint == MDI_REPAINTFRAME)
SetWindowPos(frameWnd->hwndSelf, 0,0,0,0,0, SWP_FRAMECHANGED |
SWP_NOSIZE | SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER );
}
/* ----------------------------- Interface ---------------------------- */
/**********************************************************************
* MDIClientWndProc
*
* This function is the handler for all MDI requests.
*/
LRESULT MDIClientWndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
LPCREATESTRUCT cs;
LPCLIENTCREATESTRUCT ccs;
MDICLIENTINFO *ci;
RECT rect;
WND *w = WIN_FindWndPtr(hwnd);
WND *frameWnd = w->parent;
ci = (MDICLIENTINFO *) w->wExtra;
switch (message)
{
case WM_CREATE:
cs = (LPCREATESTRUCT) PTR_SEG_TO_LIN(lParam);
ccs = (LPCLIENTCREATESTRUCT) PTR_SEG_TO_LIN(cs->lpCreateParams);
ci->hWindowMenu = ccs->hWindowMenu;
ci->idFirstChild = ccs->idFirstChild;
ci->flagChildMaximized = 0;
ci->nActiveChildren = 0;
ci->hFrameTitle = frameWnd->hText;
ci->sbStop = 0;
ci->self = hwnd;
ci->obmClose = CreateMDIMenuBitmap();
ci->obmRestore = LoadBitmap(0, MAKEINTRESOURCE(OBM_RESTORE));
w->dwStyle |= WS_CLIPCHILDREN;
frameWnd->hText = 0; /* will be restored in UpdateFrameText */
MDI_UpdateFrameText( frameWnd, hwnd, MDI_NOFRAMEREPAINT, NULL);
AppendMenu(ccs->hWindowMenu,MF_SEPARATOR,0,(SEGPTR)0);
GetClientRect(frameWnd->hwndSelf, &rect);
NC_HandleNCCalcSize(hwnd, (NCCALCSIZE_PARAMS*) &rect);
w->rectClient = rect;
dprintf_mdi(stddeb,"MDI: Client created - hwnd = %04x, idFirst = %u\n",hwnd,ci->idFirstChild);
return 0;
case WM_DESTROY:
if( ci->flagChildMaximized ) MDI_RestoreFrameMenu(w, frameWnd->hwndSelf);
if(ci->obmClose) DeleteObject(ci->obmClose);
if(ci->obmRestore) DeleteObject(ci->obmRestore);
ci->idFirstChild = GetMenuItemCount(ci->hWindowMenu) - 1;
ci->nActiveChildren++; /* to delete a separator */
while( ci->nActiveChildren-- )
DeleteMenu(ci->hWindowMenu,MF_BYPOSITION,ci->idFirstChild--);
return 0;
case WM_MDIACTIVATE:
if( ci->hwndActiveChild != (HWND)wParam )
SetWindowPos((HWND)wParam, 0,0,0,0,0, SWP_NOSIZE | SWP_NOMOVE );
return 0;
case WM_MDICASCADE:
return MDICascade(hwnd, ci);
case WM_MDICREATE:
return (LONG)MDICreateChild(w, ci, hwnd, lParam );
case WM_MDIDESTROY:
return (LONG)MDIDestroyChild(w, ci, hwnd, (HWND)wParam, TRUE);
case WM_MDIGETACTIVE:
return ((LONG) ci->hwndActiveChild |
((LONG) (ci->flagChildMaximized>0) << 16));
case WM_MDIICONARRANGE:
ci->sbStop = TRUE;
MDIIconArrange(hwnd);
ci->sbStop = FALSE;
SendMessage(hwnd,WM_MDICALCCHILDSCROLL,0,0L);
return 0;
case WM_MDIMAXIMIZE:
ShowWindow((HWND)wParam, SW_MAXIMIZE);
return 0;
case WM_MDINEXT:
MDI_SwitchActiveChild(hwnd, (HWND)wParam, (lParam)?1:0);
break;
case WM_MDIRESTORE:
ShowWindow( (HWND)wParam, SW_NORMAL);
return 0;
case WM_MDISETMENU:
#ifdef WINELIB32
return (LRESULT)MDISetMenu(hwnd, FALSE, (HMENU)wParam, (HMENU)lParam);
#else
return (LRESULT)MDISetMenu(hwnd, wParam, LOWORD(lParam), HIWORD(lParam));
#endif
case WM_MDITILE:
ci->sbStop = TRUE;
ShowScrollBar(hwnd,SB_BOTH,FALSE);
MDITile(hwnd, ci,wParam);
ci->sbStop = FALSE;
return 0;
case WM_VSCROLL:
case WM_HSCROLL:
ci->sbStop = TRUE;
ScrollChildren(hwnd,message,wParam,lParam);
ci->sbStop = FALSE;
return 0;
case WM_SETFOCUS:
if( ci->hwndActiveChild )
{
w = WIN_FindWndPtr( ci->hwndActiveChild );
if( !(w->dwStyle & WS_MINIMIZE) )
SetFocus( ci->hwndActiveChild );
}
return 0;
case WM_NCACTIVATE:
if( ci->hwndActiveChild )
SendMessage(ci->hwndActiveChild, message, wParam, lParam);
break;
case WM_PARENTNOTIFY:
if (wParam == WM_LBUTTONDOWN && (ci->hwndHitTest != ci->hwndActiveChild) )
SetWindowPos(ci->hwndHitTest, 0,0,0,0,0, SWP_NOSIZE | SWP_NOMOVE );
break;
case WM_SIZE:
if( ci->flagChildMaximized )
{
WND* child = WIN_FindWndPtr(ci->flagChildMaximized);
RECT rect = { 0, 0, LOWORD(lParam), HIWORD(lParam) };
AdjustWindowRectEx(&rect, child->dwStyle, 0, child->dwExStyle);
MoveWindow(ci->flagChildMaximized, rect.left, rect.top,
rect.right - rect.left, rect.bottom - rect.top, 1);
}
else
{
PostMessage(hwnd,WM_MDICALCCHILDSCROLL,0,0L);
ci->sbRecalc |= (SB_BOTH+1);
}
break;
case WM_MDICALCCHILDSCROLL:
if( !ci->sbStop )
if( ci->sbRecalc )
{
CalcChildScroll(hwnd, ci->sbRecalc-1);
ci->sbRecalc = 0;
}
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
/**********************************************************************
* DefFrameProc (USER.445)
*
*/
LRESULT DefFrameProc(HWND hwnd, HWND hwndMDIClient, UINT message,
WPARAM wParam, LPARAM lParam)
{
HWND childHwnd;
MDICLIENTINFO* ci;
WND* wndPtr;
if (hwndMDIClient)
{
switch (message)
{
case WM_COMMAND:
wndPtr = WIN_FindWndPtr(hwndMDIClient);
ci = (MDICLIENTINFO*)wndPtr->wExtra;
/* check for possible system command codes */
if( wParam < ci->idFirstChild ||
wParam >= ci->idFirstChild + ci->nActiveChildren )
{
if( (wParam - 0xF000) & 0xF00F ) break;
switch( wParam )
{
case SC_SIZE:
case SC_MOVE:
case SC_MINIMIZE:
case SC_MAXIMIZE:
case SC_NEXTWINDOW:
case SC_PREVWINDOW:
case SC_CLOSE:
case SC_RESTORE:
if( ci->flagChildMaximized )
return SendMessage( ci->flagChildMaximized, WM_SYSCOMMAND,
wParam, lParam);
}
}
else
{
childHwnd = MDI_GetChildByID( WIN_FindWndPtr(hwndMDIClient),
wParam );
if( childHwnd )
SendMessage(hwndMDIClient, WM_MDIACTIVATE, (WPARAM)childHwnd , 0L);
}
break;
case WM_NCACTIVATE:
SendMessage(hwndMDIClient, message, wParam, lParam);
break;
case WM_SETTEXT:
MDI_UpdateFrameText(WIN_FindWndPtr(hwnd), hwndMDIClient,
MDI_REPAINTFRAME,
(LPCSTR)PTR_SEG_TO_LIN(lParam));
return 0;
case WM_SETFOCUS:
SetFocus(hwndMDIClient);
break;
case WM_SIZE:
MoveWindow(hwndMDIClient, 0, 0,
LOWORD(lParam), HIWORD(lParam), TRUE);
break;
}
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
/**********************************************************************
* DefMDIChildProc (USER.447)
*
*/
LRESULT DefMDIChildProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
MDICLIENTINFO *ci;
WND *clientWnd;
clientWnd = WIN_FindWndPtr(GetParent(hwnd));
ci = (MDICLIENTINFO *) clientWnd->wExtra;
switch (message)
{
case WM_NCHITTEST:
ci->hwndHitTest = hwnd;
break;
case WM_SETTEXT:
DefWindowProc(hwnd, message, wParam, lParam);
MDI_MenuModifyItem(clientWnd,hwnd);
if( ci->flagChildMaximized == hwnd )
MDI_UpdateFrameText( clientWnd->parent, ci->self,
MDI_REPAINTFRAME, NULL );
return 0;
case WM_CLOSE:
SendMessage(ci->self,WM_MDIDESTROY,(WPARAM)hwnd,0L);
return 0;
case WM_SETFOCUS:
if( ci->hwndActiveChild != hwnd )
MDI_ChildActivate(clientWnd, hwnd);
break;
case WM_CHILDACTIVATE:
MDI_ChildActivate(clientWnd, hwnd);
return 0;
case WM_NCPAINT:
dprintf_mdi(stddeb,"DefMDIChildProc: WM_NCPAINT for %04x, active %04x\n",
hwnd, ci->hwndActiveChild );
break;
case WM_SYSCOMMAND:
switch( wParam )
{
case SC_MOVE:
if( ci->flagChildMaximized == hwnd) return 0;
break;
case SC_MAXIMIZE:
if( ci->flagChildMaximized == hwnd)
return SendMessage( clientWnd->parent->hwndSelf,
message, wParam, lParam);
break;
case SC_NEXTWINDOW:
SendMessage( ci->self, WM_MDINEXT, 0, 0);
return 0;
case SC_PREVWINDOW:
SendMessage( ci->self, WM_MDINEXT, 0, 1);
return 0;
}
break;
case WM_GETMINMAXINFO:
MDI_ChildGetMinMaxInfo(clientWnd, hwnd, (MINMAXINFO*) PTR_SEG_TO_LIN(lParam));
return 0;
case WM_SETVISIBLE:
if( !ci->sbStop && !ci->flagChildMaximized)
{
PostMessage(ci->self,WM_MDICALCCHILDSCROLL,0,0L);
ci->sbRecalc |= (SB_BOTH+1);
}
break;
case WM_SIZE:
/* do not change */
if( ci->hwndActiveChild == hwnd && wParam != SIZE_MAXIMIZED )
{
ci->flagChildMaximized = 0;
MDI_RestoreFrameMenu( clientWnd->parent, hwnd);
MDI_UpdateFrameText( clientWnd->parent, ci->self,
MDI_REPAINTFRAME, NULL );
}
if( wParam == SIZE_MAXIMIZED )
{
HWND hMaxChild = ci->flagChildMaximized;
if( hMaxChild == hwnd ) break;
if( hMaxChild)
{
SendMessage( hMaxChild, WM_SETREDRAW, FALSE, 0L );
MDI_RestoreFrameMenu( clientWnd->parent, hMaxChild);
ShowWindow( hMaxChild, SW_SHOWNOACTIVATE);
SendMessage( hMaxChild, WM_SETREDRAW, TRUE, 0L );
}
ci->flagChildMaximized = hwnd; /* !!! */
MDI_AugmentFrameMenu( ci, clientWnd->parent, hwnd);
MDI_UpdateFrameText( clientWnd->parent, ci->self,
MDI_REPAINTFRAME, NULL );
}
if( wParam == SIZE_MINIMIZED )
{
HWND switchTo = MDI_GetWindow(clientWnd, hwnd, 0);
if( switchTo )
SendMessage( switchTo, WM_CHILDACTIVATE, 0, 0L);
}
if( !ci->sbStop )
{
PostMessage(ci->self,WM_MDICALCCHILDSCROLL,0,0L);
ci->sbRecalc |= (SB_BOTH+1);
}
break;
case WM_MENUCHAR:
case WM_NEXTMENU:
/* set current menu to child system menu */
break;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
/**********************************************************************
* TranslateMDISysAccel (USER.451)
*
*/
BOOL TranslateMDISysAccel(HWND hwndClient, LPMSG msg)
{
WND* clientWnd = WIN_FindWndPtr( hwndClient);
WND* wnd;
MDICLIENTINFO *ci = NULL;
WPARAM wParam = 0;
if( (msg->message != WM_KEYDOWN && msg->message != WM_SYSKEYDOWN) || !clientWnd )
return 0;
ci = (MDICLIENTINFO*) clientWnd->wExtra;
wnd = WIN_FindWndPtr(ci->hwndActiveChild);
if( !wnd ) return 0;
if( wnd->dwStyle & WS_DISABLED ) return 0;
if( GetKeyState(VK_CONTROL) && !GetKeyState(VK_MENU) )
switch( msg->wParam )
{
case VK_F6:
case VK_SEPARATOR:
wParam = (GetKeyState(VK_SHIFT))? SC_NEXTWINDOW: SC_PREVWINDOW;
break;
case VK_RBUTTON:
wParam = SC_CLOSE;
default:
return 0;
}
dprintf_mdi(stddeb,"TranslateMDISysAccel: wParam = %04x\n", wParam);
SendMessage(ci->hwndActiveChild,WM_SYSCOMMAND, wParam, (LPARAM)msg->wParam);
return 1;
}
/***********************************************************************
* CalcChildScroll (USER.462)
*/
void CalcChildScroll( HWND hwnd, WORD scroll )
{
RECT childRect, clientRect;
WND *pWnd;
if (!(pWnd = WIN_FindWndPtr( hwnd ))) return;
GetClientRect( hwnd, &clientRect );
SetRectEmpty( &childRect );
for (pWnd = pWnd->child; pWnd; pWnd = pWnd->next)
UnionRect( &childRect, &pWnd->rectWindow, &childRect );
UnionRect( &childRect, &clientRect, &childRect );
if ((scroll == SB_HORZ) || (scroll == SB_BOTH))
{
SetScrollRange( hwnd, SB_HORZ, childRect.left,
childRect.right - clientRect.right, FALSE );
SetScrollPos( hwnd, SB_HORZ, clientRect.left - childRect.left, TRUE );
}
if ((scroll == SB_VERT) || (scroll == SB_BOTH))
{
SetScrollRange( hwnd, SB_VERT, childRect.top,
childRect.bottom - clientRect.bottom, FALSE );
SetScrollPos( hwnd, SB_HORZ, clientRect.top - childRect.top, TRUE );
}
}
/***********************************************************************
* ScrollChildren (USER.463)
*/
void ScrollChildren(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
WND *wndPtr = WIN_FindWndPtr(hWnd);
short newPos=-1;
short curPos;
short length;
INT minPos;
INT maxPos;
short shift;
if( !wndPtr ) return;
if( uMsg == WM_HSCROLL )
{
GetScrollRange(hWnd,SB_HORZ,&minPos,&maxPos);
curPos = GetScrollPos(hWnd,SB_HORZ);
length = (wndPtr->rectClient.right - wndPtr->rectClient.left)/2;
shift = SYSMETRICS_CYHSCROLL;
}
else if( uMsg == WM_VSCROLL )
{
GetScrollRange(hWnd,SB_VERT,&minPos,&maxPos);
curPos = GetScrollPos(hWnd,SB_VERT);
length = (wndPtr->rectClient.bottom - wndPtr->rectClient.top)/2;
shift = SYSMETRICS_CXVSCROLL;
}
else return;
switch( wParam )
{
case SB_LINEUP:
newPos = curPos - shift;
break;
case SB_LINEDOWN:
newPos = curPos + shift;
break;
case SB_PAGEUP:
newPos = curPos - length;
break;
case SB_PAGEDOWN:
newPos = curPos + length;
break;
case SB_THUMBPOSITION:
newPos = LOWORD(lParam);
break;
case SB_THUMBTRACK:
return;
case SB_TOP:
newPos = minPos;
break;
case SB_BOTTOM:
newPos = maxPos;
break;
case SB_ENDSCROLL:
CalcChildScroll(hWnd,(uMsg == WM_VSCROLL)?SB_VERT:SB_HORZ);
return;
}
if( newPos > maxPos )
newPos = maxPos;
else if( newPos < minPos )
newPos = minPos;
SetScrollPos(hWnd, (uMsg == WM_VSCROLL)?SB_VERT:SB_HORZ , newPos, TRUE);
if( uMsg == WM_VSCROLL )
ScrollWindow(hWnd ,0 ,curPos - newPos, NULL, NULL);
else
ScrollWindow(hWnd ,curPos - newPos, 0, NULL, NULL);
}
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