keyboard.h

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/*---------------------------------------------------------------------------------

        keyboard.h -- stdin integration for a simple keyboard

        Copyright (C) 2007
                Jason Rogers (Dovoto) 

        This software is provided 'as-is', without any express or implied
        warranty.  In no event will the authors be held liable for any
        damages arising from the use of this software.

        Permission is granted to anyone to use this software for any
        purpose, including commercial applications, and to alter it and
        redistribute it freely, subject to the following restrictions:

        1.      The origin of this software must not be misrepresented; you
        must not claim that you wrote the original software. If you use
        this software in a product, an acknowledgment in the product
        documentation would be appreciated but is not required.

        2.      Altered source versions must be plainly marked as such, and
        must not be misrepresented as being the original software.

        3.      This notice may not be removed or altered from any source
        distribution.

---------------------------------------------------------------------------------*/
#ifndef __KEYBOARD_H__
#define __KEYBOARD_H__

#include <nds/ndstypes.h>
#include <nds/arm9/background.h>

typedef void (*KeyChangeCallback)(int key);

typedef enum
{
        Lower = 0, 
        Upper = 1, 
        Numeric = 2, 
        Reduced = 3 
}KeyboardState;

typedef struct KeyMap {
   const u16* mapDataPressed;
   const u16* mapDataReleased;
   const int* keymap; 
   int width; 
   int height; 
}KeyMap;

typedef struct Keyboard {
        int background;
        int keyboardOnSub; 
    int offset_x; 
        int offset_y; 
        int grid_width; 
        int grid_height;
        KeyboardState state; 
    int shifted;  
    int visible; 
        KeyMap* mappings[4];
        //KeyMap* lower; /*!< keymapping for lower case normal keyboard>*/
 //   KeyMap* upper;/*!< keymapping for shifted upper case normal keyboard>*/
 //   KeyMap* numeric; /*!< keymapping for numeric keypad>*/
 //   KeyMap* reduced; /*!< keymapping for reduced footprint keyboard>*/
        const u16* tiles; 
    u32 tileLen; 
    const u16* palette; 
    u32 paletteLen; 
    int mapBase; 
        int tileBase; 
        int tileOffset; 
        u32 scrollSpeed; 
   KeyChangeCallback OnKeyPressed; 
        KeyChangeCallback OnKeyReleased; 
}Keyboard;

#ifdef __cplusplus
extern "C" {
#endif

Keyboard* keyboardGetDefault(void);

Keyboard* keyboardInit(Keyboard* keyboard, int layer, BgType type, BgSize size, int mapBase, int tileBase, bool mainDisplay, bool loadGraphics);

Keyboard* keyboardDemoInit(void);
void keyboardShow(void);

void keyboardHide(void);

int keyboardGetKey(int x, int y);

void keyboardGetString(char * buffer, int maxLen);

int keyboardGetChar(void);

int keyboardUpdate(void);

#ifdef __cplusplus
}
#endif

#endif

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