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fixed wxTextCtrl::GetValue() bug for empty richedit ctrls (Marvin Aviles)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@8766 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-11-21 18:01:27 +00:00
parent e5f56a004e
commit 3988b155d7
1 changed files with 25 additions and 20 deletions
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45
src/msw/textctrl.cpp
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@@ -378,29 +378,34 @@ wxString wxTextCtrl::GetValue() const
#if wxUSE_RICHEDIT
if ( m_isRich )
{
int len = GetWindowTextLength(GetHwnd()) + 1;
wxString str;
wxChar *p = str.GetWriteBuf(len);
TEXTRANGE textRange;
textRange.chrg.cpMin = 0;
textRange.chrg.cpMax = -1;
textRange.lpstrText = p;
(void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
// believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for the
// newlines which is neither Unix nor Windows style (Win95 with
// riched20.dll shows this behaviour) - convert it to something
// reasonable
for ( ; *p; p++ )
int len = GetWindowTextLength(GetHwnd());
if ( len )
{
if ( *p == _T('\r') )
*p = _T('\n');
}
// alloc one extra WORD as needed by the control
wxChar *p = str.GetWriteBuf(++len);
str.UngetWriteBuf();
TEXTRANGE textRange;
textRange.chrg.cpMin = 0;
textRange.chrg.cpMax = -1;
textRange.lpstrText = p;
(void)SendMessage(GetHwnd(), EM_GETTEXTRANGE, 0, (LPARAM)&textRange);
// believe it or not, but EM_GETTEXTRANGE uses just CR ('\r') for
// the newlines which is neither Unix nor Windows style (Win95 with
// riched20.dll shows this behaviour) - convert it to something
// reasonable
for ( ; *p; p++ )
{
if ( *p == _T('\r') )
*p = _T('\n');
}
str.UngetWriteBuf();
}
//else: no text at all, leave the string empty
return str;
}
@@ -1074,7 +1079,7 @@ wxSize wxTextCtrl::DoGetBestSize() const
int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
if ( m_windowStyle & wxTE_MULTILINE )
{
hText *= wxMin(GetNumberOfLines(), 5);
hText *= wxMax(GetNumberOfLines(), 5);
}
//else: for single line control everything is ok