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A fix to get edit control scrolls bars to draw in the correct

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position.
This commit is contained in:
Duane Clark 2003-02-19 03:40:33 +00:00 committed by Alexandre Julliard
parent 9f5f86e3a3
commit ccb4b9ccff
1 changed files with 34 additions and 10 deletions
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44
dlls/richedit/richedit.c
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@ -118,8 +118,13 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
switch (uMsg)
{
case WM_CREATE :
DPRINTF_EDIT_MSG32("WM_CREATE");
case WM_CREATE:
DPRINTF_EDIT_MSG32("WM_CREATE Passed to default");
DefWindowProcA( hwnd,uMsg,wParam,lParam);
return 0 ;
case WM_NCCREATE :
DPRINTF_EDIT_MSG32("WM_NCCREATE");
/* remove SCROLLBARS from the current window style */
hwndParent = ((LPCREATESTRUCTA) lParam)->hwndParent;
@ -129,6 +134,7 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
newstyle &= ~WS_VSCROLL;
newstyle &= ~ES_AUTOHSCROLL;
newstyle &= ~ES_AUTOVSCROLL;
SetWindowLongA(hwnd,GWL_STYLE, newstyle);
TRACE("previous hwndEdit: %p\n",hwndEdit);
hwndEdit = CreateWindowA ("edit", ((LPCREATESTRUCTA) lParam)->lpszName,
@ -137,8 +143,10 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
((LPCREATESTRUCTA) lParam)->hInstance, NULL) ;
TRACE("hwndEdit: %p hwnd: %p\n",hwndEdit,hwnd);
SetWindowLongA(hwnd,GWL_STYLE, newstyle);
return 0 ;
if (hwndEdit)
return TRUE ;
else
return FALSE ;
case WM_SETFOCUS :
DPRINTF_EDIT_MSG32("WM_SETFOCUS");
@ -612,9 +620,6 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
case WM_STYLECHANGED:
DPRINTF_EDIT_MSG32("WM_STYLECHANGED Passed to edit control");
return SendMessageA( hwndEdit, uMsg, wParam, lParam);
case WM_NCCALCSIZE:
DPRINTF_EDIT_MSG32("WM_NCCALCSIZE Passed to edit control");
return SendMessageA( hwndEdit, uMsg, wParam, lParam);
case WM_GETTEXT:
DPRINTF_EDIT_MSG32("WM_GETTEXT Passed to edit control");
return SendMessageA( hwndEdit, uMsg, wParam, lParam);
@ -635,6 +640,28 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
return SendMessageA( hwndEdit, uMsg, wParam, lParam);
/* Messages passed to default handler. */
case WM_NCCALCSIZE:
/* A fundamental problem with embedding an edit control within another
window to emulate the richedit control, is that normally, the
WM_NCCALCSIZE message window would return the client area of the
edit control.
While we could send a message to the edit control here to get that size
and return that value, this causes problems with the WM_SIZE message.
That is because the WM_SIZE message uses the returned value of
WM_NCCALCSIZE (via X11DRV_SetWindowSize) to determine the size to make
the edit control. If we return the size of the edit control client area
here, the result is the symptom of the edit control being inset on the
right and bottom by the width of any existing scrollbars.
The easy fix is to have WM_NCCALCSIZE return the true size of this
enclosing window, which is what we have done here. The more difficult
fix is to create a custom Richedit MoveWindow procedure for use in the
WM_SIZE message above. Since it is very unlikely that an app would call
and use the WM_NCCALCSIZE message, we stick with the easy fix for now.
*/
DPRINTF_EDIT_MSG32("WM_NCCALCSIZE Passed to default");
return DefWindowProcA( hwnd,uMsg,wParam,lParam);
case WM_NCPAINT:
DPRINTF_EDIT_MSG32("WM_NCPAINT Passed to default");
return DefWindowProcA( hwnd,uMsg,wParam,lParam);
@ -675,9 +702,6 @@ static LRESULT WINAPI RICHED32_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
case WM_SHOWWINDOW:
DPRINTF_EDIT_MSG32("WM_SHOWWINDOW Passed to default");
return DefWindowProcA( hwnd,uMsg,wParam,lParam);
case WM_NCCREATE:
DPRINTF_EDIT_MSG32("WM_NCCREATE Passed to default");
return DefWindowProcA( hwnd,uMsg,wParam,lParam);
case WM_PARENTNOTIFY:
DPRINTF_EDIT_MSG32("WM_PARENTNOTIFY Passed to default");
return DefWindowProcA( hwnd,uMsg,wParam,lParam);