#ifndef KEYBOARD_H

#define KEYBOARD_H

#include "graph.h"

#include "input.h"

#define K_LBL_SIZE LABEL_MAXLEN

// key flags

enum {

  KF_HIGHLIGHT = 1 << 0, // key will be hightlighted

  KF_HOLD      = 1 << 1, // key will be hold until it will pressed again or non-hold key will pressed

  KF_MOD       = 1 << 2, // visible value depends on modifier state (using optValue field)

  KF_LAYOUT    = 1 << 3, // key to switch layout (using optValue field);

  KF_MOVE      = 1 << 4, // handle to move the window

  KF_SIZE      = 1 << 5, // key to resize the window

  KF_CLOSE     = 1 << 6, // key to close the window

  KF_SPECIAL   = KF_HOLD | KF_MOD | KF_LAYOUT | KF_MOVE | KF_SIZE | KF_CLOSE,

};

// special layout indices

enum {

  LI_PREV   = -1,   // switch to previous layout in the list

  LI_NEXT   = -2,   // switch to next layout in the list

  LI_REVERT = -3 }; // switch to previously used layout

struct Key;

struct Layout;

struct Keyboard;

typedef struct Key Key;

typedef struct Layout Layout;

typedef struct Keyboard Keyboard;

struct Key {

  // keep these filds at the begining for easyest static initialization

  int ox, oy, ow, oh;

  unsigned int keySym;

  unsigned int keySym2;

  char label[K_LBL_SIZE];

  char label2[K_LBL_SIZE];

  unsigned int flags;

  int optValue;

  // these fields will be set while initialization

  Layout *l;

  int isLetter;

  int isKeypad;

  TextLayout tl;

  TextLayout tl2;

  // dynamic fields

  int x, y, w, h;

  int down;

  int longDown;

  int downKeycode;

  int mx, my; // values for move and size buttons

  Key *nextHeld, *prevHeld;

  Key *orig, *clone;

};

struct Layout {

  // keep these filds at the begining for easyest static initialization

  Key *keys;

  int keysCount;

  int ow, oh;

  // these fields will be set while initialization

  Keyboard *kbd;

  int hidden;

  // dynamic fields

  int w, h;

  Key *downKey; // key that received the last mouse down event

};

struct Keyboard {

  // keep these filds at the begining for easyest static initialization

  Layout *layouts;

  int layoutsCount;

  int ow, oh;

  // these fields will be set while initialization

  App *app;

  // dynamic fields

  unsigned int lastModifiers;

  Layout *current;

  Layout *lastVisible;

  Key *firstHeld;

};

int keyInit(Key *k, Layout *l);

void keyDeinit(Key *k);

void keyInvalidateRect(Key *k);

void keyDraw(Key *k, int cx, int cy, int cw, int ch);

void keyDown(Key *k, int x, int y);

void keyMotion(Key *k, int x, int y);

void keyLongDown(Key *k);

void keyUp(Key *k, int force);

int layoutInit(Layout *l, Keyboard *kbd);

void layoutDeinit(Layout *l);

void layoutResize(Layout *l);

void layoutDraw(Layout *l, int cx, int cy, int cw, int ch);

void layoutMouseDown(Layout *l, int x, int y);

void layoutMouseMotion(Layout *l, int x, int y);

void layoutMouseLongDown(Layout *l);

void layoutMouseUp(Layout *l);

int keyboardInit(Keyboard *kbd, App *app);

void keyboardDeinit(Keyboard *kbd);

void keyboardResize(Keyboard *kbd);

void keyboardUpdateModifiers(Keyboard *kbd);

void keyboardDraw(Keyboard *kbd, int cx, int cy, int cw, int ch);

void keyboardMouseDown(Keyboard *kbd, int x, int y);

void keyboardMouseMotion(Keyboard *kbd, int x, int y);

void keyboardMouseLongDown(Keyboard *kbd);

void keyboardMouseUp(Keyboard *kbd);

void keyboardSwitchLayout(Keyboard *kbd, int index);

void keyboardRelaseHeld(Keyboard *kbd);

#endif