/*  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 "common/SafeArray.h"
#include "common/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();
};