/*
	Neutrino-GUI  -   DBoxII-Project

	Copyright (C) 2001 Steffen Hehn 'McClean'
	Copyright (C) 2014 CoolStream International Ltd

	License: GPLv2

	This program is free software; you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, version 2 of the License.

	This program 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 this program; if not, write to the Free Software
	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/


#ifndef __keyboard_input__
#define __keyboard_input__

#include "menue.h"

#include <driver/framebuffer.h>
#include <system/localize.h>

#include <string>

#define KEY_ROWS 4
#define KEY_COLUMNS 14

struct keyboard_layout
{
        std::string name;
        std::string locale;
        std::string (*keys)[KEY_ROWS][KEY_COLUMNS];
};

class CInputString
{
	private:
		size_t len;
		std::vector<std::string> inputString;
		std::string valueString;

	public:
		CInputString(int Size);
		size_t length();
		void clear();
		std::string &at(size_t pos);
		void assign(size_t n, char c);
		const char* c_str();
		CInputString & operator=(const std::string &str);
		std::string &getValue();
};

class CKeyboardInput : public CMenuTarget
{
	protected:
		CFrameBuffer	*frameBuffer;
		int x;
		int y;
		int width;
		int height;
		int hheight; // head font height
		int iheight; // input string height
		int bheight; // body height
		int fheight; // footer height
		int input_h; // input field height
		int input_w; // input field width
		int iwidth;  // input width
		int offset;
		int key_y;

		// keyboard
		int key_w;   // keyboard key width
		int key_h;   // keyboard key height
		int kwidth;  // keyboard width
		int srow, scol;
		enum {
			FOCUS_KEY,
			FOCUS_STRING
		};
		int focus;
		int caps;
		struct keyboard_layout *layout;
		std::string (*keyboard)[KEY_COLUMNS];
		CInputString * inputString;

		std::string  title;
		neutrino_locale_t hint_1, hint_2;
		std::string hintText_1, hintText_2;
		std::string iconfile;
		int          inputSize;
		int          selected;
		bool	     changed;
		CChangeObserver * observ;
		bool force_saveScreen;
		fb_pixel_t *pixBuf;

		void keyDigiPressed(const neutrino_msg_t key);

		virtual void init();

		virtual void paint();
		virtual int  paintFooter(bool show = true);
		virtual void paintChar(int pos, std::string &c);
		virtual void paintChar(int pos);
		virtual void paintKeyboard();
		virtual void paintKey(int row, int column);

		virtual void NormalKeyPressed();
		virtual void clearString();
		virtual void switchCaps();
		virtual void keyUpPressed();
		virtual void keyDownPressed();
		virtual void keyLeftPressed();
		virtual void keyRightPressed();
		virtual void insertChar();
		virtual void deleteChar();
		virtual void keyBackspacePressed();
		virtual void switchLayout();
		virtual void setLayout();

	public:
		CKeyboardInput(const neutrino_locale_t Name, std::string* Value, int Size = 0, CChangeObserver* Observ = NULL, const char * const Icon = NULL, const neutrino_locale_t Hint_1 = NONEXISTANT_LOCALE, const neutrino_locale_t Hint_2 = NONEXISTANT_LOCALE);
		CKeyboardInput(const std::string      &Name, std::string* Value, int Size = 0, CChangeObserver* Observ = NULL, const char * const Icon = NULL, const neutrino_locale_t Hint_1 = NONEXISTANT_LOCALE, const neutrino_locale_t Hint_2 = NONEXISTANT_LOCALE);
		CKeyboardInput(const std::string      &Name, std::string* Value, int Size = 0, CChangeObserver* Observ = NULL, const char * const Icon = NULL, std::string HintText_1 = "", std::string HintText_2 = "");
		~CKeyboardInput();

		void hide();
		int exec( CMenuTarget* parent, const std::string & actionKey );
		virtual std::string &getValue(void);

		void forceSaveScreen(bool enable);
};

#endif