Rewrited of onscreen keyboard. Uses 2 files from xorg and now it can change between layouts.

src/onscreen_keyboard.h

@@ -0,0 +1,123 @@
+#include "wchar.h"
+#include "stdio.h"
+#include "SDL.h"
+#include "SDL_ttf.h"
+/* after file:///usr/share/doc/libsdl1.2-dev/docs/html/sdlkey.html
+
+Table 8-2. SDL modifier definitions
+
+SDL Modifier	Meaning
+KMOD_NONE	No modifiers applicable
+KMOD_NUM	Numlock is down
+KMOD_CAPS	Capslock is down
+KMOD_LCTRL	Left Control is down
+KMOD_RCTRL	Right Control is down
+KMOD_RSHIFT	Right Shift is down
+KMOD_LSHIFT	Left Shift is down
+KMOD_RALT	Right Alt is down
+KMOD_LALT	Left Alt is down
+KMOD_CTRL	A Control key is down
+KMOD_SHIFT	A Shift key is down
+KMOD_ALT	An Alt key is down
+
+*/
+
+
+
+typedef struct osk_keymap
+{
+  int keycode;                
+  int disable_caps;   /* If caps lock should affect this key */
+  char * plain;       /* The default Xkeysym for the keycode */
+  char * caps;        /* If CapsLock or Shift + key */
+  char * altgr;       /* If AltGr + key */
+  char * shiftaltgr;  /* If AltGr + Shift + key */
+} osk_keymap;
+
+typedef struct osk_key
+{
+  int keycode;                 /* The code associated to this key. If 0, then it is an empty key. */
+  int row;
+  int x;
+  int y;
+  float width;                 /* The width in buttons */
+  wchar_t *plain_label;        /* The text that will show the key */
+  wchar_t *top_label;          /* The text that will show the key above the plain label. */
+  wchar_t *altgr_label;        /* The text that will show the key at the right of the plain label */
+  int shiftcaps;               /* If the value of the key should be shifted when capslock is active */
+} osk_key;
+
+typedef struct osk_composenode
+{
+  wchar_t * keysym;
+  wchar_t * result;
+  int size;                         /* How many childs are there. */
+  struct osk_composenode ** childs;
+  //  struct osk_composenode **parent;
+} osk_composenode;
+
+typedef struct keysymdefs
+{
+  char * mnemo;
+  int keysym;
+  int unicode;
+} keysymdefs;
+
+typedef struct osk_layout
+{
+  char *name;
+  int *rows;
+  int width;
+  int height;
+  char * fontpath;
+  osk_key **keys;
+  osk_keymap *keymap;
+  osk_composenode * composemap;
+  keysymdefs * keysymdefs;
+  uint sizeofkeysymdefs;
+  SDL_Color bgcolor;
+  SDL_Color fgcolor;
+} osk_layout;
+
+typedef struct osk_keymodifiers
+{
+  osk_key shift;
+  osk_key altgr;
+  osk_key compose;
+  osk_key dead;
+} osk_keymodifiers;
+
+typedef struct osk_keyboard
+{
+  char * name;                   /* The name of the keyboard */
+  char * keyboard_list;          /* The names of the keyboards allowed from this one */
+  SDL_Surface *surface;          /* The surface containing the keyboard */
+  SDL_Surface *button_up;        /* The surfaces containing the buttons */
+  SDL_Surface *button_down;
+  SDL_Surface *button_off;
+  int changed;                   /* If the surface has been modified (painted)  */
+  SDL_Rect rect;                 /* The rectangle that has changed */
+  int recreated;                 /* If the surface has been deleted and newly created */ 
+  int modifiers;                 /* The state of Alt, CTRL, Shift, CapsLock, AltGr keys */
+  osk_keymodifiers keymodifiers; /* A shortcurt to find the place of the pressed modifiers */
+  osk_layout *layout;            /* The layout struct */ 
+  char *layout_name[256];        /* The layout name */
+  wchar_t * key[256];            /* The text of the key */
+  int keycode;                   /* The unicode code corresponding to the key */
+  wchar_t * composed;            /* The unicode char found after a sequence of key presses */
+  int composed_type;             /* 1 if the value stored in composed is yet the unicode value */
+  osk_composenode * composing;   /* The node in the middle of a compose sequence */
+  osk_key * last_key_pressed;    /* The last key pressed */
+} on_screen_keyboard;
+
+struct osk_keyboard *osk_create(char *layout_name, SDL_Surface *canvas, SDL_Surface *button_up, SDL_Surface *button_down, SDL_Surface * button_off);
+
+struct osk_layout *osk_load_layout(char *layout_name);
+
+void osk_get_layout_data(char *layout_name, int *layout_w, int *layout_h, char * layout_buttons, char *layout_labels, char *layout_keycodes);
+void osk_reset(on_screen_keyboard *osk);
+struct osk_keyboard * osk_clicked(on_screen_keyboard *keyboard, int x, int y);
+void osk_released(on_screen_keyboard *osk);
+void osk_hover(on_screen_keyboard *keyboard, int x, int y);
+void osk_free(on_screen_keyboard *osk);
+void osk_change_layout(on_screen_keyboard *osk);