/*  PCSX2 - PS2 Emulator for PCs
 *  Copyright (C) 2002-2010  PCSX2 Dev Team
 *
 *  PCSX2 is free software: you can redistribute it and/or modify it under the terms
 *  of the GNU Lesser General Public License as published by the Free Software Found-
 *  ation, either version 3 of the License, or (at your option) any later version.
 *
 *  PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 *  PURPOSE.  See the GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License along with PCSX2.
 *  If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <wx/wx.h>
#include "SafeArray.h"
#include "wxGuiTools.h"

// --------------------------------------------------------------------------------------
//  RadioPanelItem
// --------------------------------------------------------------------------------------

struct RadioPanelItem
{
    wxString Label;
    wxString SubText;
    wxString ToolTip;

    int SomeInt;
    void *SomePtr;

    RadioPanelItem(const wxString &label, const wxString &subtext = wxEmptyString, const wxString &tooltip = wxEmptyString)
        : Label(label)
        , SubText(subtext)
        , ToolTip(tooltip)
    {
        SomeInt = 0;
        SomePtr = NULL;
    }

    RadioPanelItem &SetToolTip(const wxString &tip)
    {
        ToolTip = tip;
        return *this;
    }

    RadioPanelItem &SetSubText(const wxString &text)
    {
        SubText = text;
        return *this;
    }

    RadioPanelItem &SetInt(int intval)
    {
        SomeInt = intval;
        return *this;
    }

    RadioPanelItem &SetPtr(void *ptrval)
    {
        SomePtr = ptrval;
        return *this;
    }
};


// Used as a cache for the "original" labels and subtexts, so that text can be properly
// wrapped and re-wrapped with multiple calls to OnResize().
struct RadioPanelObjects
{
    wxRadioButton *LabelObj;
    pxStaticText *SubTextObj;
};

// --------------------------------------------------------------------------------------
//  pxRadioPanel
// --------------------------------------------------------------------------------------
//
// Rationale:
// Radio buttons work best when they are created consecutively, and then their subtext
// created in a second sweep (this keeps the radio buttons together in the parent window's
// child list, and avoids potentially unwanted behavior with radio buttons failing to
// group expectedly).  Because of this, our radio button helper is shaped as a panel of
// a group of radio buttons only, instead of bothering with the lower level per-button
// design.  This makes a few other things nicer as well, such as binding a single message
// handler to all radio buttons in the panel.
//
class pxRadioPanel : public wxPanelWithHelpers
{
protected:
    typedef std::vector<RadioPanelItem> ButtonArray;
    typedef SafeArray<RadioPanelObjects> ButtonObjArray;

    ButtonArray m_buttonStrings;
    ButtonObjArray m_objects;

    bool m_IsRealized;

    wxSize m_padding;
    int m_Indentation;
    int m_DefaultIdx; // index of the default option (gets specific color/font treatment)

public:
    template <int size>
    pxRadioPanel(wxWindow *parent, const RadioPanelItem (&src)[size])
        : wxPanelWithHelpers(parent, wxVERTICAL)
    {
        Init(src, size);
    }

    pxRadioPanel(wxWindow *parent)
        : wxPanelWithHelpers(parent, wxVERTICAL)
    {
        Init();
    }

    virtual ~pxRadioPanel() = default;

    void Reset();
    void Realize();

    pxStaticText *GetSubText(int idx);
    const pxStaticText *GetSubText(int idx) const;
    pxRadioPanel &Append(const RadioPanelItem &entry);

    pxRadioPanel &SetToolTip(int idx, const wxString &tip);
    pxRadioPanel &SetSelection(int idx);
    pxRadioPanel &SetDefaultItem(int idx);
    pxRadioPanel &EnableItem(int idx, bool enable = true);

    const RadioPanelItem &Item(int idx) const;
    RadioPanelItem &Item(int idx);

    int GetSelection() const;
    wxWindowID GetSelectionId() const;
    bool IsSelected(int idx) const;

    const RadioPanelItem &SelectedItem() const { return Item(GetSelection()); }
    RadioPanelItem &SelectedItem() { return Item(GetSelection()); }

    wxRadioButton *GetButton(int idx);
    const wxRadioButton *GetButton(int idx) const;

    int GetPaddingVert() const { return m_padding.GetHeight(); }
    int GetIndentation() const { return m_Indentation; }

    pxRadioPanel &SetPaddingHoriz(int newpad)
    {
        m_padding.SetHeight(newpad);
        return *this;
    }

    pxRadioPanel &SetIndentation(int newdent)
    {
        m_Indentation = newdent;
        return *this;
    }

    bool HasSubText(int idx) const
    {
        return !m_buttonStrings[idx].SubText.IsEmpty();
    }

    pxRadioPanel &Append(const wxString &label, const wxString &subtext = wxEmptyString, const wxString &tooltip = wxEmptyString)
    {
        return Append(RadioPanelItem(label, subtext, tooltip));
    }

protected:
    void Init(const RadioPanelItem *srcArray = NULL, int arrsize = 0);
    void _setToolTipImmediate(int idx, const wxString &tip);
    void _RealizeDefaultOption();
};