1 files changed, 140 insertions, 0 deletions
diff --git a/wx+/std_button_order.h b/wx+/std_button_order.h
new file mode 100644
index 00000000..71fc2334
--- /dev/null
+++ b/wx+/std_button_order.h
@@ -0,0 +1,140 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved        *
+// **************************************************************************
+
+#ifndef STD_BUTTON_ORDER_H_18347032147831732143214
+#define STD_BUTTON_ORDER_H_18347032147831732143214
+
+#include <wx/sizer.h>
+#include <wx/button.h>
+
+namespace zen
+{
+struct StdButtons
+{
+    StdButtons() : btnYes(nullptr), btnNo(nullptr), btnCancel(nullptr) {}
+    StdButtons& setAffirmative (wxButton* btn) { btnYes    = btn; return *this; }
+    StdButtons& setNegative    (wxButton* btn) { btnNo     = btn; return *this; }
+    StdButtons& setCancel      (wxButton* btn) { btnCancel = btn; return *this; }
+
+    wxButton* btnYes;
+    wxButton* btnNo;
+    wxButton* btnCancel;
+};
+
+void setStandardButtonOrder(wxBoxSizer& sizer, const StdButtons& buttons = StdButtons());
+//sizer width will change! => call wxWindow::Fit and wxWindow::Layout
+
+
+
+
+
+
+
+
+
+
+
+//--------------- impelementation -------------------------------------------
+inline
+void setStandardButtonOrder(wxBoxSizer& sizer, const StdButtons& buttons)
+{
+    assert(sizer.GetOrientation() == wxHORIZONTAL);
+
+    StdButtons buttonsTmp = buttons;
+
+    auto detach = [&](wxButton*& btn)
+    {
+        if (btn)
+        {
+            assert(btn->GetContainingSizer() == &sizer);
+            if (btn->IsShown())
+            {
+                bool rv = sizer.Detach(btn);
+                assert(rv);
+                if (!rv)
+                    btn = nullptr;
+            }
+            else
+                btn = nullptr;
+        }
+    };
+
+    detach(buttonsTmp.btnYes);
+    detach(buttonsTmp.btnNo);
+    detach(buttonsTmp.btnCancel);
+
+#if defined ZEN_WIN
+    //Windows User Experience Interaction Guidelines: http://msdn.microsoft.com/en-us/library/windows/desktop/aa511453.aspx#sizing
+    const int spaceH    = 6;  //OK
+    const int spaceRimH = 10; //OK
+    const int spaceRimV = 8;  //compromise; consider additional top row from static line; exact values: top 8, bottom 9
+#elif defined ZEN_LINUX
+    //GNOME Human Interface Guidelines: https://developer.gnome.org/hig-book/3.2/hig-book.html#alert-spacing
+    const int spaceH    = 6;  //OK
+    const int spaceRimH = 12; //OK
+    const int spaceRimV = 12; //OK
+#elif defined ZEN_MAC
+    //OS X Human Interface Guidelines: http://developer.apple.com/library/mac/#documentation/UserExperience/Conceptual/AppleHIGuidelines/Windows/Windows.html
+    const int spaceH    = 14; //OK
+    const int spaceRimH = 20; //OK
+    const int spaceRimV = 11; //compromise; custom button height (of 30 pix) is considered, although the button is drawn smaller; otherwise 15 seems to have been optimal
+#endif
+
+    bool firstButtonSet = false;
+    auto attach = [&](wxButton* btn)
+    {
+        if (btn)
+        {
+            if (firstButtonSet)
+                sizer.Add(spaceH, 0);
+            else
+                firstButtonSet = true;
+            sizer.Add(btn, 0, wxTOP | wxBOTTOM | wxALIGN_CENTER_VERTICAL, spaceRimV);
+            assert(btn->GetSize().GetHeight() == 30); //see comment for OS X above
+        }
+    };
+
+    //set border on left considering existing items
+    if (sizer.GetChildren().GetCount() > 0) //for yet another retarded reason wxWidgets will have wxSizer::GetItem(0) cause an assert rather than just return nullptr as documented
+        if (wxSizerItem* item = sizer.GetItem(static_cast<size_t>(0)))
+        {
+            assert(item->GetBorder() <= spaceRimV); //pragmatic check: other controls in the sizer should not have a larger border
+            int flag = item->GetFlag();
+            if (flag & wxLEFT)
+            {
+                flag &= ~wxLEFT;
+                item->SetFlag(flag);
+            }
+            sizer.Insert(static_cast<size_t>(0), spaceRimH, 0);
+        }
+
+    sizer.Add(spaceRimH, 0);
+#if defined ZEN_WIN
+    attach(buttonsTmp.btnYes);
+    attach(buttonsTmp.btnNo);
+    attach(buttonsTmp.btnCancel);
+
+#elif defined ZEN_LINUX
+    attach(buttonsTmp.btnNo);
+    attach(buttonsTmp.btnCancel);
+    attach(buttonsTmp.btnYes);
+
+#elif defined ZEN_MAC
+    if (buttonsTmp.btnNo)
+    {
+        attach(buttonsTmp.btnNo);
+        sizer.Add(42 - spaceH, 0); //OS X Human Interface Guidelines: "position it at least 24 pixels away from the “safe” buttons" -> however 42 is used in practice!
+    }
+    attach(buttonsTmp.btnCancel);
+    attach(buttonsTmp.btnYes);
+#endif
+    sizer.Add(spaceRimH, 0);
+
+    assert(buttonsTmp.btnCancel || buttonsTmp.btnYes); //OS X: there should be at least one button following the gap after the "dangerous" no-button
+}
+}
+
+#endif //STD_BUTTON_ORDER_H_18347032147831732143214