///////////////////////////////////////////////////////////////////////////////
-// Name: msw/private/button.h
+// Name: wx/msw/private/button.h
// Purpose: helper functions used with native BUTTON control
// Author: Vadim Zeitlin
// Created: 2008-06-07
#ifndef _WX_MSW_PRIVATE_BUTTON_H_
#define _WX_MSW_PRIVATE_BUTTON_H_
+// define some standard button constants which may be missing in the headers
+#ifndef BS_PUSHLIKE
+ #define BS_PUSHLIKE 0x00001000L
+#endif
+
+#ifndef BST_UNCHECKED
+ #define BST_UNCHECKED 0x0000
+#endif
+
+#ifndef BST_CHECKED
+ #define BST_CHECKED 0x0001
+#endif
+
+#ifndef BST_INDETERMINATE
+ #define BST_INDETERMINATE 0x0002
+#endif
+
namespace wxMSWButton
{
// returns BS_MULTILINE if the label contains new lines or 0 otherwise
inline int GetMultilineStyle(const wxString& label)
{
- return label.find(_T('\n')) == wxString::npos ? 0 : BS_MULTILINE;
+ return label.find(wxT('\n')) == wxString::npos ? 0 : BS_MULTILINE;
}
// update the style of the specified HWND to include or exclude BS_MULTILINE
// depending on whether the label contains the new lines
-inline void UpdateMultilineStyle(HWND hwnd, const wxString& label)
+void UpdateMultilineStyle(HWND hwnd, const wxString& label);
+
+// flags for ComputeBestSize() and GetFittingSize()
+enum
+{
+ Size_AuthNeeded = 1,
+ Size_ExactFit = 2
+};
+
+// NB: All the functions below are implemented in src/msw/button.cpp
+
+// Compute the button size (as if wxBU_EXACTFIT were specified, i.e. without
+// adjusting it to be of default size if it's smaller) for the given label size
+WXDLLIMPEXP_CORE wxSize
+GetFittingSize(wxWindow *win, const wxSize& sizeLabel, int flags = 0);
+
+// Compute the button size (as if wxBU_EXACTFIT were specified) by computing
+// its label size and then calling GetFittingSize().
+wxSize ComputeBestFittingSize(wxControl *btn, int flags = 0);
+
+// Increase the size passed as parameter to be at least the standard button
+// size if the control doesn't have wxBU_EXACTFIT style and also cache it as
+// the best size and return its value -- this is used in DoGetBestSize()
+// implementation.
+wxSize IncreaseToStdSizeAndCache(wxControl *btn, const wxSize& size);
+
+// helper of wxToggleButton::DoGetBestSize()
+inline wxSize ComputeBestSize(wxControl *btn, int flags = 0)
{
- // 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 as we don't use BS_MULTILINE when creating
- // the control unless it already has new lines in its label)
- long styleOld = ::GetWindowLong(hwnd, GWL_STYLE),
- styleNew;
- if ( label.find(_T('\n')) != wxString::npos )
- styleNew = styleOld | BS_MULTILINE;
- else
- styleNew = styleOld & ~BS_MULTILINE;
-
- if ( styleNew != styleOld )
- ::SetWindowLong(hwnd, GWL_STYLE, styleNew);
+ return IncreaseToStdSizeAndCache(btn, ComputeBestFittingSize(btn, flags));
}
} // namespace wxMSWButton