///////////////////////////////////////////////////////////////////////////////
// Name:        wx/generic/aboutdlgg.h
// Purpose:     generic wxAboutBox() implementation
// Author:      Vadim Zeitlin
// Created:     2006-10-07
// Copyright:   (c) 2006 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence:     wxWindows licence
///////////////////////////////////////////////////////////////////////////////

#ifndef _WX_GENERIC_ABOUTDLGG_H_
#define _WX_GENERIC_ABOUTDLGG_H_

#include "wx/defs.h"

#if wxUSE_ABOUTDLG

#include "wx/dialog.h"

class WXDLLIMPEXP_FWD_CORE wxAboutDialogInfo;
class WXDLLIMPEXP_FWD_CORE wxPanel;
class WXDLLIMPEXP_FWD_CORE wxSizer;
class WXDLLIMPEXP_FWD_CORE wxSizerFlags;
class WXDLLIMPEXP_FWD_CORE wxStaticText;

// Under GTK and OS X "About" dialogs are not supposed to be modal, unlike MSW
// and, presumably, all the other platforms.
#ifndef wxUSE_MODAL_ABOUT_DIALOG
    #if defined(__WXGTK__) || defined(__WXMAC__)
        #define wxUSE_MODAL_ABOUT_DIALOG 0
    #else
        #define wxUSE_MODAL_ABOUT_DIALOG 1
    #endif
#endif // wxUSE_MODAL_ABOUT_DIALOG not defined

// ----------------------------------------------------------------------------
// wxGenericAboutDialog: generic "About" dialog implementation
// ----------------------------------------------------------------------------

class WXDLLIMPEXP_CORE wxGenericAboutDialog : public wxDialog
{
public:
    // constructors and Create() method
    // --------------------------------

    // default ctor, you must use Create() to really initialize the dialog
    wxGenericAboutDialog() = default;

    // ctor which fully initializes the object
    wxGenericAboutDialog(const wxAboutDialogInfo& info, wxWindow* parent = nullptr)
    {
        (void)Create(info, parent);
    }

    // this method must be called if and only if the default ctor was used
    bool Create(const wxAboutDialogInfo& info, wxWindow* parent = nullptr);

protected:
    // Return the parent to use for custom controls.
    wxWindow* GetCustomControlParent() const { return m_contents; }

    // This virtual method may be overridden to add some more controls to the
    // dialog. The controls should be created using GetCustomControlParent() as
    // the parent and then passed to AddControl().
    //
    // notice that for this to work you must call Create() from the derived
    // class ctor and not use the base class ctor directly as otherwise the
    // virtual function of the derived class wouldn't be called
    virtual void DoAddCustomControls() { }

    // add arbitrary control to the text sizer contents with the specified
    // flags
    void AddControl(wxWindow *win, const wxSizerFlags& flags);

    // add arbitrary control to the text sizer contents and center it
    void AddControl(wxWindow *win);

    // add the text, if it's not empty, to the text sizer contents
    wxStaticText* AddText(const wxString& text);

#if wxUSE_COLLPANE
    // add a wxCollapsiblePane containing the given text
    void AddCollapsiblePane(const wxString& title, const wxString& text);
#endif // wxUSE_COLLPANE

private:
#if !wxUSE_MODAL_ABOUT_DIALOG
    // An explicit handler for deleting the dialog when it's closed is needed
    // when we show it non-modally.
    void OnCloseWindow(wxCloseEvent& event);
    void OnOK(wxCommandEvent& event);
#endif // !wxUSE_MODAL_ABOUT_DIALOG

    // The panel containing the dialog contents.
    wxWindow *m_contents = nullptr;

    wxSizer *m_sizerText = nullptr;
};

// unlike wxAboutBox which can show either the native or generic about dialog,
// this function always shows the generic one
WXDLLIMPEXP_CORE void wxGenericAboutBox(const wxAboutDialogInfo& info, wxWindow* parent = nullptr);

#endif // wxUSE_ABOUTDLG

#endif // _WX_GENERIC_ABOUTDLGG_H_