X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/533171c2873027b260f7107451ab22992d9e3926..438959cca892a7651634cc3a7aad4819ac49b23c:/include/wx/msw/private/button.h

diff --git a/include/wx/msw/private/button.h b/include/wx/msw/private/button.h
index ac6393dc34..2f344f2d53 100644
--- a/include/wx/msw/private/button.h
+++ b/include/wx/msw/private/button.h
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// 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
@@ -11,33 +11,64 @@
 #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