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james |
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/* |
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* gui.h -- portable gui library, platform independent header |
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*/ |
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#ifndef gui_H |
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#define gui_H |
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#include <setjmp.h> |
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#include <stddef.h> |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <varargs.h> |
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#include <wchar.h> |
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#include "wstring.h" |
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/* |
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* user variables and functions |
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*/ |
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extern const char *task_name; |
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extern void task_initialise(void); |
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extern void task_finalise(void); |
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/* |
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* #include gui_<platform>.h |
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*/ |
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#ifdef riscos |
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#include "gui_riscos.h" |
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#elif defined gtk |
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#include "gui_gtk.h" |
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#else |
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#error Unknown platform |
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#endif |
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/* |
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* main_<platform>.c |
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*/ |
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extern char **gui_message; |
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extern int main(int argc, char *argv[]); |
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extern void gui_initialise(void); |
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extern void gui_event_loop(void); |
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/* |
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* window_<platform>.c |
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*/ |
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#define gui_H_SCROLL_BAR 0x1 |
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#define gui_V_SCROLL_BAR 0x2 |
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#define gui_CLICK 1 |
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#define gui_CLICK_MENU 2 |
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#define gui_CLICK_RIGHT 3 |
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#define gui_DRAG 4 |
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#define gui_DRAG_RIGHT 5 |
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extern gui_window_id gui_create_window(const unsigned int flags, |
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char *title, |
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const unsigned int width, const unsigned int height, |
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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, |
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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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gui_menu_id menu, |
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const char *bbar, |
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const char *help); |
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extern void gui_remove_window(const gui_window_id window_id); |
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extern void gui_refresh_window(const gui_window_id window_id); |
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extern void gui_refresh_box(const gui_window_id window_id, unsigned int x0, |
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unsigned int y0, |
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unsigned int x1, unsigned int y1); |
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extern void gui_window_extent(const gui_window_id window_id, |
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unsigned int width, unsigned int height); |
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extern void gui_fill(unsigned int colour, unsigned int x0, unsigned int y0, |
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unsigned int x1, unsigned int y1); |
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extern void gui_move_box(const gui_window_id window_id, unsigned int x0, unsigned int y0, |
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unsigned int x1, unsigned int y1, unsigned int x2, unsigned int y2); |
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/* |
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* dialog_<platform>.c |
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*/ |
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extern void gui_start_dialog(char *title, unsigned int width, |
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bool close, const char *help); |
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extern gui_window_id gui_create_dialog(void); |
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extern void ensure_dialog_space(void); |
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extern void gui_create_label(char *text, const char *help); |
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extern gui_gadget_id gui_create_text_box(char *text, const char *mask, |
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const char *help); |
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extern gui_gadget_id gui_create_display_box(char *text, char *value, |
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const char *help); |
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extern void gui_create_button(char *text, 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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* textarea.c |
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*/ |
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struct gui_ta; |
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struct gui_ta_content; |
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struct gui_ta_word; |
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struct gui_ta_style; |
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struct gui_ta_position; |
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struct gui_ta_selection; |
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struct gui_ta |
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{ |
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unsigned long width; |
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unsigned long height; |
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unsigned long contents; |
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unsigned long styles; |
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struct gui_ta_content *(*content)[]; |
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struct gui_ta_style *(*style)[]; |
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}; |
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struct gui_ta_content |
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{ |
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enum { CONTENT_SPACE, CONTENT_PARAGRAPH } type; |
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unsigned long y0; |
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unsigned long y1; |
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unsigned long leading; |
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unsigned long base; |
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unsigned long words; |
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enum { ALIGN_LEFT, ALIGN_CENTRE, ALIGN_RIGHT, ALIGN_FULL } align; |
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struct gui_ta_word *(*word)[]; |
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}; |
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struct gui_ta_word |
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{ |
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signed long x; /* real x coordinate */ |
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unsigned long lx; /* left-align x coordinate */ |
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unsigned long y; /* y coordinate */ |
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unsigned long width; /* width of text */ |
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unsigned long style; /* font style */ |
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int start : 1; /* at start of a line */ |
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int end : 1; /* at end of a line */ |
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signed long box_x0; /* rubout box */ |
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signed long box_x1; |
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wchar_t text[1]; |
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}; |
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#define gui_SIZEOF_GUI_TA_WORD(n) (offsetof(struct gui_ta_word, text) + (n) * sizeof(wchar_t)) |
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struct gui_ta_position |
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{ |
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unsigned long content; |
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unsigned long word; |
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unsigned long offset; |
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unsigned long x; |
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unsigned long y; |
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}; |
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struct gui_ta_selection |
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{ |
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struct gui_ta_position start; |
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struct gui_ta_position end; |
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}; |
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extern struct gui_ta *gui_ta(unsigned long width); |
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extern long gui_ta_add_space(struct gui_ta *doc, unsigned long height); |
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extern int gui_ta_add_paragraph(struct gui_ta *doc, unsigned long leading, |
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unsigned long base, wchar_t *text, unsigned long style, unsigned long align); |
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extern unsigned long gui_ta_get_style(struct gui_ta *doc, unsigned long xsize, |
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unsigned long ysize, unsigned long fcolour, unsigned long bcolour, char *font); |
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extern void gui_ta_render(struct gui_ta *doc, unsigned long x, unsigned long y, |
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unsigned int invalid[], struct gui_ta_selection *sel); |
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extern void gui_ta_position_xy(struct gui_ta *doc, struct gui_ta_position *pos, |
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signed long x, unsigned long y); |
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extern void gui_ta_reformat(struct gui_ta *doc, unsigned long width); |
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extern unsigned int gui_ta_reformat_paragraph(struct gui_ta *doc, |
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struct gui_ta_content *con, unsigned long y, unsigned long width, |
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unsigned long *y0_ret, unsigned long *y1_ret); |
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extern void gui_ta_insert_char(struct gui_ta *doc, struct gui_ta_position *pos, |
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wchar_t text, gui_window_id window_id, |
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unsigned long x_offset, unsigned long y_offset); |
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extern void gui_ta_insert_split(struct gui_ta *doc, struct gui_ta_position *pos, |
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gui_window_id window_id, unsigned long x_offset, unsigned long y_offset); |
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extern void gui_ta_insert_newline(struct gui_ta *doc, struct gui_ta_position *pos, |
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gui_window_id window_id, unsigned long x_offset, unsigned long y_offset); |
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extern void gui_ta_position_cwo(struct gui_ta *doc, struct gui_ta_position *pos); |
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extern void gui_ta_delete(struct gui_ta *doc, struct gui_ta_position *start, |
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struct gui_ta_position *end, gui_window_id window_id, |
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unsigned long x_offset, unsigned long y_offset); |
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extern void gui_ta_remove(struct gui_ta *doc); |
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extern void gui_ta_align(struct gui_ta *doc, unsigned int content, unsigned int align, |
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gui_window_id window_id, unsigned int x_offset, unsigned int y_offset); |
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extern void gui_ta_export(struct gui_ta *doc, const char *path); |
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/* |
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* textarea_<platform>.c |
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*/ |
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extern unsigned long gui_ta_text_width(struct gui_ta *doc, const wchar_t *text, |
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unsigned long s); |
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extern void gui_ta_render_text(struct gui_ta *doc, wchar_t *text, unsigned long s, |
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unsigned long x, unsigned long y, unsigned long box_x0, |
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unsigned long box_y0, unsigned long box_x1, unsigned long box_y1, |
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bool sel); |
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extern unsigned long gui_ta_position_x(struct gui_ta *doc, wchar_t *text, unsigned long s, |
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signed long *x); |
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extern unsigned long gui_ta_position_o(struct gui_ta *doc, wchar_t *text, unsigned long s, |
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unsigned long offset); |
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extern void gui_ta_caret(gui_window_id window_id, struct gui_ta *doc, |
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struct gui_ta_position *pos, unsigned long x, unsigned long y); |
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extern void gui_ta_fill_style(struct gui_ta_style *style); |
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extern void gui_ta_empty_style(struct gui_ta_style *style); |
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/* |
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* messages.c |
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*/ |
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extern char **gui_messages_read(const char *file_name); |
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/* |
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* menu_<platform>.c |
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*/ |
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extern gui_menu_id gui_menu(unsigned int base, unsigned int items); |
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extern void gui_menu_attach(gui_menu_id menu, unsigned int item, gui_menu_id submenu); |
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/* |
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* log |
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*/ |
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#ifdef DEBUG |
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#define gui_log(fmt, args...) { fprintf(stdout, fmt, ## args); fflush(stdout); } |
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#else |
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#define gui_log(fmt, args...) {} |
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#endif |
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#endif |
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