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james |
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/* |
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* gui_riscos.h -- portable gui library, RISC OS header |
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*/ |
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#include "oslib/colourtrans.h" |
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#include "oslib/help.h" |
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#include "oslib/messagetrans.h" |
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#include "oslib/osbyte.h" |
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#include "oslib/wimp.h" |
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#include "ufont.h" |
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typedef unsigned int gui_window_id; |
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#define gui_WINDOW_UNKNOWN ((gui_window_id) 0xffffffff) |
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typedef unsigned int gui_gadget_id; |
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typedef wimp_menu *gui_menu_id; |
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extern wimp_t gui_wimp_task; /* wimp task handle */ |
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extern os_error *gui_error; /* last error block pointer */ |
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extern const char *gui_error_message; /* last error message */ |
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extern int gui_error_line; /* last error line */ |
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extern jmp_buf gui_error_jump; /* longjmp buffer for error handling */ |
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struct gui_dialog_icon |
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{ |
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enum { ICON_NONE, ICON_ACTION } type; |
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void (*click_fn)(gui_window_id window_id, gui_gadget_id gadget_id); |
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const char *help; |
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}; |
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struct gui_window_data |
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{ |
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enum { UNUSED, WINDOW, DIALOG } used; |
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wimp_w handle; |
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char *title; |
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void (*close_fn)(gui_window_id window_id); |
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void (*redraw_fn)(gui_window_id window_id, unsigned int invalid[]); |
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void (*click_fn)(gui_window_id window_id, unsigned int x, unsigned int y, unsigned int z); |
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void (*resize_fn)(gui_window_id window_id, unsigned int width, unsigned int height); |
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bool (*key_fn)(gui_window_id window_id, unsigned int key); |
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void (*input_fn)(gui_window_id window_id, wchar_t key); |
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void (*menu_fn)(gui_window_id window_id, unsigned int items[]); |
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unsigned int width, height; |
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wimp_menu *menu; |
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wimp_w *bbar; |
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struct gui_dialog_icon *icon; |
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const char *help; |
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}; |
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extern struct gui_window_data *gui_window_list; /* array of window details */ |
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extern unsigned int gui_window_list_items; /* length of windows list */ |
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extern gui_window_id gui_get_free_window_id(void); |
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extern gui_window_id gui_handle_to_window_id(wimp_w handle); |
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extern signed int gui_window_origin_x, gui_window_origin_y; |
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#define WINDOW_LIST_CHUNK 20 |
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struct gui_ta_style |
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{ |
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unsigned int xsize; |
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unsigned int ysize; |
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unsigned int fcolour; |
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unsigned int bcolour; |
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unsigned int space; |
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ufont_f handle; |
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char font[1]; |
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}; |
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#define gui_SIZEOF_GUI_TA_STYLE(n) (offsetof(struct gui_ta_style, font) + (n) * sizeof(char)) |
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#define KEY_BACKSPACE wimp_KEY_BACKSPACE |
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#define KEY_RETURN wimp_KEY_RETURN |
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#define KEY_ESCAPE wimp_KEY_ESCAPE |
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#define KEY_HOME wimp_KEY_HOME |
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#define KEY_DELETE wimp_KEY_DELETE |
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#define KEY_SHIFT wimp_KEY_SHIFT |
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#define KEY_CONTROL wimp_KEY_CONTROL |
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#define KEY_PRINT wimp_KEY_PRINT |
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#define KEY_F1 wimp_KEY_F1 |
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#define KEY_F2 wimp_KEY_F2 |
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#define KEY_F3 wimp_KEY_F3 |
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#define KEY_F4 wimp_KEY_F4 |
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#define KEY_F5 wimp_KEY_F5 |
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#define KEY_F6 wimp_KEY_F6 |
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#define KEY_F7 wimp_KEY_F7 |
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#define KEY_F8 wimp_KEY_F8 |
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#define KEY_F9 wimp_KEY_F9 |
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#define KEY_TAB wimp_KEY_TAB |
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#define KEY_COPY wimp_KEY_COPY |
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#define KEY_LEFT wimp_KEY_LEFT |
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#define KEY_RIGHT wimp_KEY_RIGHT |
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#define KEY_LOGO wimp_KEY_LOGO |
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#define KEY_MENU wimp_KEY_MENU |
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#define KEY_F10 wimp_KEY_F10 |
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#define KEY_F11 wimp_KEY_F11 |
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#define KEY_F12 wimp_KEY_F12 |
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#define KEY_INSERT wimp_KEY_INSERT |
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#define KEY_DOWN wimp_KEY_DOWN |
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#define KEY_UP wimp_KEY_UP |
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#define KEY_PAGE_DOWN wimp_KEY_PAGE_DOWN |
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#define KEY_PAGE_UP wimp_KEY_PAGE_UP |
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/* |
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* Error handling |
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*/ |
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/* |
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* gui_check_error -- check for an error after a swi |
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*/ |
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#define gui_check_error() if (gui_error) { gui_error_message = gui_error->errmess; gui_error_line = __LINE__; longjmp(gui_error_jump, 1); } |
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/* |
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* gui_raise_error -- generate an error |
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*/ |
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#define gui_raise_error(message) { gui_error_message = (message); gui_error_line = __LINE__; longjmp(gui_error_jump, 1); } |
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/* |
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* assert |
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*/ |
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#ifdef DEBUG |
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#define assert(expression) ((void) ((expression) ? 0 : (printf("%s:%u: *** assert(" #expression ") failed ***\n", __FILE__, __LINE__), exit(EXIT_FAILURE), 0))) |
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#else |
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#define assert(expression) ((void) 0) |
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#endif |
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