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1///////////////////////////////////////////////////////////////////////////////
2// Name: wx/msw/private/button.h
3// Purpose: helper functions used with native BUTTON control
4// Author: Vadim Zeitlin
5// Created: 2008-06-07
6// RCS-ID: $Id$
7// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
8// Licence: wxWindows licence
9///////////////////////////////////////////////////////////////////////////////
10
11#ifndef _WX_MSW_PRIVATE_BUTTON_H_
12#define _WX_MSW_PRIVATE_BUTTON_H_
13
14// define some standard button constants which may be missing in the headers
15#ifndef BS_PUSHLIKE
16 #define BS_PUSHLIKE 0x00001000L
17#endif
18
19#ifndef BST_UNCHECKED
20 #define BST_UNCHECKED 0x0000
21#endif
22
23#ifndef BST_CHECKED
24 #define BST_CHECKED 0x0001
25#endif
26
27#ifndef BST_INDETERMINATE
28 #define BST_INDETERMINATE 0x0002
29#endif
30
31namespace wxMSWButton
32{
33
34// returns BS_MULTILINE if the label contains new lines or 0 otherwise
35inline int GetMultilineStyle(const wxString& label)
36{
37 return label.find(wxT('\n')) == wxString::npos ? 0 : BS_MULTILINE;
38}
39
40// update the style of the specified HWND to include or exclude BS_MULTILINE
41// depending on whether the label contains the new lines
42void UpdateMultilineStyle(HWND hwnd, const wxString& label);
43
44// flags for ComputeBestSize() and GetFittingSize()
45enum
46{
47 Size_AuthNeeded = 1,
48 Size_ExactFit = 2
49};
50
51// NB: All the functions below are implemented in src/msw/button.cpp
52
53// Compute the button size (as if wxBU_EXACTFIT were specified, i.e. without
54// adjusting it to be of default size if it's smaller) for the given label size
55WXDLLIMPEXP_CORE wxSize
56GetFittingSize(wxWindow *win, const wxSize& sizeLabel, int flags = 0);
57
58// Compute the button size (as if wxBU_EXACTFIT were specified) by computing
59// its label size and then calling GetFittingSize().
60wxSize ComputeBestFittingSize(wxControl *btn, int flags = 0);
61
62// Increase the size passed as parameter to be at least the standard button
63// size if the control doesn't have wxBU_EXACTFIT style and also cache it as
64// the best size and return its value -- this is used in DoGetBestSize()
65// implementation.
66wxSize IncreaseToStdSizeAndCache(wxControl *btn, const wxSize& size);
67
68// helper of wxToggleButton::DoGetBestSize()
69inline wxSize ComputeBestSize(wxControl *btn, int flags = 0)
70{
71 return IncreaseToStdSizeAndCache(btn, ComputeBestFittingSize(btn, flags));
72}
73
74} // namespace wxMSWButton
75
76#endif // _WX_MSW_PRIVATE_BUTTON_H_
77