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