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// *****************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: https://www.gnu.org/licenses/gpl-3.0 *
// * Copyright (C) Zenju (zenju AT freefilesync DOT org) - All Rights Reserved *
// *****************************************************************************
#ifndef STD_BUTTON_LAYOUT_H_183470321478317214
#define STD_BUTTON_LAYOUT_H_183470321478317214
#include <algorithm>
#include <wx/sizer.h>
#include <wx/button.h>
#include "dc.h"
namespace zen
{
struct StdButtons
{
StdButtons& setAffirmative (wxButton* btn) { btnYes = btn; return *this; }
StdButtons& setAffirmativeAll(wxButton* btn) { btnYes2 = btn; return *this; }
StdButtons& setNegative (wxButton* btn) { btnNo = btn; return *this; }
StdButtons& setCancel (wxButton* btn) { btnCancel = btn; return *this; }
wxButton* btnYes = nullptr;
wxButton* btnYes2 = nullptr;
wxButton* btnNo = nullptr;
wxButton* btnCancel = nullptr;
};
void setStandardButtonLayout(wxBoxSizer& sizer, const StdButtons& buttons = StdButtons());
//sizer width will change! => call wxWindow::Fit and wxWindow::Layout
//--------------- impelementation -------------------------------------------
inline
void setStandardButtonLayout(wxBoxSizer& sizer, const StdButtons& buttons)
{
assert(sizer.GetOrientation() == wxHORIZONTAL);
//GNOME Human Interface Guidelines: https://developer.gnome.org/hig-book/3.2/hig-book.html#alert-spacing
const int spaceH = fastFromDIP( 6); //OK
const int spaceRimH = fastFromDIP(12); //OK
const int spaceRimV = fastFromDIP(12); //OK
StdButtons buttonsTmp = buttons;
auto detach = [&](wxButton*& btn)
{
if (btn)
{
assert(btn->GetContainingSizer() == &sizer);
if (btn->IsShown() && sizer.Detach(btn))
return;
assert(false); //why is it hidden!?
btn = nullptr;
}
};
detach(buttonsTmp.btnYes);
detach(buttonsTmp.btnYes2);
detach(buttonsTmp.btnNo);
detach(buttonsTmp.btnCancel);
//"All your fixed-size spacers are belong to us!" => have a clean slate: consider repeated setStandardButtonLayout() calls
for (size_t pos = sizer.GetItemCount(); pos-- > 0;)
if (wxSizerItem& item = *sizer.GetItem(pos);
item.IsSpacer() && item.GetProportion() == 0 && item.GetSize().y == 0)
{
[[maybe_unused]] bool rv = sizer.Detach(pos);
assert(rv);
}
//set border on left considering existing items
if (!sizer.IsEmpty()) //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));
item.IsShown())
{
assert(item.GetBorder() <= spaceRimV); //pragmatic check: other controls in the sizer should not have a larger border
if (const int flag = item.GetFlag();
flag & wxLEFT)
item.SetFlag(flag & ~wxLEFT);
sizer.Prepend(spaceRimH, 0);
}
bool settingFirstButton = true;
auto attach = [&](wxButton* btn)
{
if (btn)
{
assert(btn->GetMinSize().GetHeight() == -1); //let OS or this routine do the sizing! note: OS X does not allow changing the (visible!) button height!
const int defaultHeight = wxButton::GetDefaultSize().GetHeight(); //buffered by wxWidgets
btn->SetMinSize({-1, std::max(defaultHeight, fastFromDIP(31))}); //default button height is much too small => increase!
if (settingFirstButton)
settingFirstButton = false;
else
sizer.Add(spaceH, 0);
sizer.Add(btn, 0, wxTOP | wxBOTTOM | wxALIGN_CENTER_VERTICAL, spaceRimV);
}
};
sizer.Add(spaceRimH, 0);
attach(buttonsTmp.btnNo);
attach(buttonsTmp.btnCancel);
attach(buttonsTmp.btnYes2);
attach(buttonsTmp.btnYes);
sizer.Add(spaceRimH, 0);
//OS X: there should be at least one button following the gap after the "dangerous" no-button
assert(buttonsTmp.btnYes || buttonsTmp.btnCancel);
}
}
#endif //STD_BUTTON_LAYOUT_H_183470321478317214
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