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update button style to include BS_MULTILINE when a multiline label is set

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47815 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2007-07-29 13:38:34 +00:00
parent c4e1d0fc47
commit d94de683a6
2 changed files with 26 additions and 8 deletions
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12
include/wx/msw/button.h
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@ -45,15 +45,16 @@ public:
virtual wxWindow *SetDefault();
// overridden base class methods
virtual void SetLabel(const wxString& label);
virtual bool SetBackgroundColour(const wxColour &colour);
virtual bool SetForegroundColour(const wxColour &colour);
// implementation from now on
virtual void Command(wxCommandEvent& event);
virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
virtual bool MSWCommand(WXUINT param, WXWORD id);
// coloured buttons support
virtual bool SetBackgroundColour(const wxColour &colour);
virtual bool SetForegroundColour(const wxColour &colour);
virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *item);
virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
@ -78,5 +79,4 @@ private:
DECLARE_DYNAMIC_CLASS_NO_COPY(wxButton)
};
#endif
// _WX_BUTTON_H_
#endif // _WX_BUTTON_H_

22
src/msw/button.cpp
View File

@ -182,8 +182,7 @@ bool wxButton::Create(wxWindow *parent,
// black boxes)
//
// NB: we do it here and not in MSWGetStyle() because we need the label
// value and m_label is not set yet when MSWGetStyle() is called;
// besides changing BS_MULTILINE during run-time is pointless anyhow
// value and the label is not set yet when MSWGetStyle() is called
if ( label.find(_T('\n')) != wxString::npos )
{
msStyle |= BS_MULTILINE;
@ -237,6 +236,25 @@ WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
return msStyle;
}
void wxButton::SetLabel(const wxString& label)
{
// update BS_MULTILINE style depending on the new label (resetting it
// doesn't seem to do anything very useful but it shouldn't hurt and we do
// have to set it whenever the label becomes multi line as otherwise it
// wouldn't be shown correctly)
long styleOld = ::GetWindowLong(GetHwnd(), GWL_STYLE),
styleNew;
if ( label.find(_T('\n')) != wxString::npos )
styleNew = styleOld | BS_MULTILINE;
else
styleNew = styleOld & ~BS_MULTILINE;
if ( styleNew != styleOld )
::SetWindowLong(GetHwnd(), GWL_STYLE, styleNew);
wxButtonBase::SetLabel(label);
}
// ----------------------------------------------------------------------------
// size management including autosizing
// ----------------------------------------------------------------------------