From: Christian Heller Date: Sat, 23 Nov 2013 04:34:29 +0000 (+0100) Subject: Slightly shortened and simplified windows library code. X-Git-Tag: tce~920 X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/decks/static/te"st.html?a=commitdiff_plain;h=c2cef1f0fa8fc32907d6f7fcdb4268c117dee71c;p=plomrogue Slightly shortened and simplified windows library code. --- diff --git a/src/main.c b/src/main.c index 478f764..39837fe 100644 --- a/src/main.c +++ b/src/main.c @@ -152,14 +152,12 @@ int main(int argc, char *argv[]) world.seed = restore_seed; /* Initialize window system and windows. */ - WINDOW * screen = initscr(); + init_win_meta(); set_cleanup_flag(CLEANUP_NCURSES); noecho(); curs_set(0); - keypad(screen, TRUE); + keypad(world.wmeta->screen, TRUE); raw(); - init_win_meta(screen); - set_cleanup_flag(CLEANUP_WIN_META); load_interface_conf(); set_cleanup_flag(CLEANUP_INTERFACE_CONF); diff --git a/src/rexit.c b/src/rexit.c index 0b673af..c96adc9 100644 --- a/src/rexit.c +++ b/src/rexit.c @@ -4,13 +4,12 @@ #include /* for exit(), free(), defines EXIT_SUCESS, EXIT_FAILURE */ #include /* for printf(), perror() */ #include /* for uint8_t */ -#include /* for endwin() */ #include /* for errno */ #include "main.h" /* for world global */ #include "map.h" /* for Map struct */ #include "keybindings.h" /* for free_keybindings() */ #include "command_db.h" /* for free_command_db() */ -#include "windows.h" /* for Win struct, free_win(), free_winmeta() */ +#include "windows.h" /* for Win struct, free_win(), free_winmeta_and_endwin() */ #include "map_objects.h" /* for free_map_objects, free_map_object_defs() */ #include "misc.h" /* for unload_interface_conf() */ #include "map_object_actions.h" /* for free_map_object_actions() */ @@ -25,10 +24,6 @@ static void cleanup(); static void cleanup() { - if (cleanup_flags & CLEANUP_NCURSES) - { - endwin(); - } if (cleanup_flags & CLEANUP_MAP_OBJECTS) { free_map_objects(world.map_objs); @@ -57,9 +52,9 @@ static void cleanup() { unload_interface_conf(); } - if (cleanup_flags & CLEANUP_WIN_META) + if (cleanup_flags & CLEANUP_NCURSES) { - free_winmeta(); + free_winmeta_and_endwin(); } } diff --git a/src/rexit.h b/src/rexit.h index 459fcb9..a28efc2 100644 --- a/src/rexit.h +++ b/src/rexit.h @@ -26,8 +26,7 @@ enum cleanup_flag CLEANUP_MAPOBJACTS = 0x0010, CLEANUP_MAP_OBJECTS = 0x0020, CLEANUP_MAP_OBJECT_DEFS = 0x0040, - CLEANUP_WIN_META = 0x0080, - CLEANUP_INTERFACE_CONF = 0x0100 + CLEANUP_INTERFACE_CONF = 0x0080 }; extern void set_cleanup_flag(enum cleanup_flag flag); diff --git a/src/windows.c b/src/windows.c index fafa566..a0c42f1 100644 --- a/src/windows.c +++ b/src/windows.c @@ -2,11 +2,11 @@ #include "windows.h" #include /* for uint8_t, uint16_t, uint32_t, UINT16_MAX */ -#include /* for typedefs WINDOW, chtype, wresize(), getmaxx(), */ - /* getmaxy(), delwin(), mvwaddch(), mvwaddstr(), */ - /* newpad(), wnoutrefres(), erase(), werase(), */ - /* pnoutrefresh(), doupdate(), getmaxyx() */ -#include /* for malloc(), free() */ +#include /* for typedefs chtype, wresize(), getmaxx(), getmaxy(), + * delwin(), mvwaddch(), mvwaddstr(), newpad(), erase(), + * wnoutrefresh(), werase(), pnoutrefresh(), doupdate() + */ +#include /* for free() */ #include /* for strlen(), strnlen(), memcpy() */ #include "yx_uint16.h" /* for struct yx_uint16 */ #include "misc.h" /* for center_offset(), try_malloc() */ @@ -15,24 +15,21 @@ -/* Fit virtual screen's width to minimum width demanded by current windows' - * geometries. - */ +/* Make virtual screen just wide enough to contain all visible windows. */ static void refit_pad(); /* Update geometry (sizes, positions) of window "w" and its successors in the - * window chain. For the positioning algorithm place_win() is used. + * window chain. Use place_win() for the positioning algorithm. */ static void update_wins(struct Win * w); static void place_win(struct Win * w); -/* Draw scroll hint (a line saying that there are "dist" more elements of - * "unit" further into the direction symbolized by the "dir" char) into virtual - * screen pad, onto an appropriate edge of either a window or the screen; the - * left or right edge if "dir" is "<" or ">", or the upper or lower edge if it - * is "^" or "v". "start" should be either the start coordinate of a window's - * frame or .y=0, .x=wm->pad_offset if it describes the virtual screen pad. - * winscroll_hint() and padscroll_hint() are wrappers to simplify these uses. +/* Draw scroll hint (a line saying that there are "dist" more elements of "unit" + * further into the direction symbolized by "dir") into virtual screen, onto an + * appropriate edge of a window or the screen; the left/right edge if "dir" is + * "<"/">", or the top/bottom edge if it is "^"/"v". "start" be either the start + * coordinate of a window's frame, or .y=0, .x=wm->pad_offset for the virtual + * screen. winscroll_hint() and padscroll_hint() are wrappers to both cases. */ static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist, char * unit, struct yx_uint16 start); @@ -42,22 +39,15 @@ static void padscroll_hint(char dir, uint16_t dist); /* Draw contents of all windows in window chain from window "w" onwards. */ static void draw_wins(struct Win * w); -/* draw_win_borderlines() draws the vertical and horizontal borders of window - * "w" sans corners into the virtual screen "pad", and draws the top border - * line as the windows' title bar (highlighted if the window is described - * active by "active" being == 1). - * - * draw_wins_borderlines() calls draw_win_borderlines() recursively on all - * windows from "w" on. "w_active" is a pointer to the one window that - * draw_win_borderlines() is supposed to handle as the active window. - * - * Finally, draw_wins_bordercorners() draws into "pad" the borders of window "w" - * and all its successors. +/* draw_win_borderlines() draws vertical/horizontal borders of window "w" sans + * corners into the virtual screen. It draws the top border line as the windows' + * title bar (highlighted if the window is selected as active). It is called + * recursively by draw_wins_borderlines() on all windows from "w" on. + * draw_wins_bordercorners() draws the border corners of "w" and its successors. */ -static void draw_win_borderlines(struct Win * w, char active, WINDOW * pad); -static void draw_wins_borderlines(struct Win * w, struct Win * w_active, - WINDOW * pad); -static void draw_wins_bordercorners(struct Win * w, WINDOW * pad); +static void draw_win_borderlines(struct Win * w); +static void draw_wins_borderlines(struct Win * w); +static void draw_wins_bordercorners(struct Win * w); /* Shift active window forwards / backwards in window chain. */ static void shift_win_forward(); @@ -203,11 +193,9 @@ static void scroll_hint(struct yx_uint16 fsize, char dir, uint16_t dist, if ('<' == dir || '>' == dir) { mvwaddch(world.wmeta->pad, start.y + q, start.x + draw_offset, c); + continue; } - else - { - mvwaddch(world.wmeta->pad, start.y + draw_offset, start.x + q, c); - } + mvwaddch(world.wmeta->pad, start.y + draw_offset, start.x + q, c); } } @@ -238,11 +226,11 @@ static void winscroll_hint(struct Win * w, char dir, uint16_t dist) static void draw_wins(struct Win * w) { w->draw(w); - uint16_t y, x, size_y, size_x; - size_y = w->winmapsize.y; - size_x = w->winmapsize.x; + uint16_t size_y = w->winmapsize.y; + uint16_t size_x = w->winmapsize.x; uint16_t offset_y = center_offset(w->center.y, size_y, w->framesize.y); uint16_t offset_x = center_offset(w->center.x, size_x, w->framesize.x); + uint16_t y, x; for (y = offset_y; y < w->framesize.y + offset_y && y < size_y; y++) { for (x = offset_x; x < w->framesize.x + offset_x && x < size_x; x++) @@ -280,19 +268,19 @@ static void draw_wins(struct Win * w) -static void draw_win_borderlines(struct Win * w, char active, WINDOW * pad) +static void draw_win_borderlines(struct Win * w) { /* Draw vertical and horizontal border lines. */ uint16_t y, x; for (y = w->start.y; y <= w->start.y + w->framesize.y; y++) { - mvwaddch(pad, y, w->start.x - 1, '|'); - mvwaddch(pad, y, w->start.x + w->framesize.x, '|'); + mvwaddch(world.wmeta->pad, y, w->start.x - 1, '|'); + mvwaddch(world.wmeta->pad, y, w->start.x + w->framesize.x, '|'); } for (x = w->start.x; x <= w->start.x + w->framesize.x; x++) { - mvwaddch(pad, w->start.y - 1, x, '-'); - mvwaddch(pad, w->start.y + w->framesize.y, x, '-'); + mvwaddch(world.wmeta->pad, w->start.y - 1, x, '-'); + mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y, x, '-'); } /* Draw as much as possible of the title into center of top border line. */ @@ -307,45 +295,41 @@ static void draw_win_borderlines(struct Win * w, char active, WINDOW * pad) uint16_t length_visible = strnlen(w->title, w->framesize.x - 2); char title[length_visible + 3]; char decoration = ' '; - if (1 == active) + if (w == world.wmeta->active) { decoration = '$'; } memcpy(title + 1, w->title, length_visible); title[0] = title[length_visible + 1] = decoration; title[length_visible + 2] = '\0'; - mvwaddstr(pad, w->start.y - 1, w->start.x + title_offset, title); + mvwaddstr(world.wmeta->pad, + w->start.y - 1, w->start.x + title_offset, title); } } -static void draw_wins_borderlines(struct Win * w, struct Win * w_active, - WINDOW * pad) +static void draw_wins_borderlines(struct Win * w) { - char active = 0; - if (w == w_active) - { - active = 1; - } - draw_win_borderlines(w, active, pad); + draw_win_borderlines(w); if (0 != w->next) { - draw_wins_borderlines(w->next, w_active, pad); + draw_wins_borderlines(w->next); } } -static void draw_wins_bordercorners(struct Win * w, WINDOW * pad) +static void draw_wins_bordercorners(struct Win * w) { - mvwaddch(pad, w->start.y - 1, w->start.x - 1, '+'); - mvwaddch(pad, w->start.y - 1, w->start.x + w->framesize.x, '+'); - mvwaddch(pad, w->start.y + w->framesize.y, w->start.x - 1, '+'); - mvwaddch(pad, w->start.y + w->framesize.y, w->start.x + w->framesize.x,'+'); + mvwaddch(world.wmeta->pad, w->start.y - 1, w->start.x - 1, '+'); + mvwaddch(world.wmeta->pad, w->start.y - 1, w->start.x + w->framesize.x, '+'); + mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y, w->start.x - 1, '+'); + mvwaddch(world.wmeta->pad, w->start.y + w->framesize.y, + w->start.x + w->framesize.x,'+'); if (0 != w->next) { - draw_wins_bordercorners(w->next, pad); + draw_wins_bordercorners(w->next); } } @@ -433,17 +417,16 @@ static void shift_win_backward() -extern void init_win_meta(WINDOW * screen) +extern void init_win_meta() { char * f_name = "init_win_meta()"; char * err_s = "init_win_meta() creates virtual screen beyond legal size."; char * err_m = "init_win_meta() triggers memory alloc error via newpad()."; world.wmeta = try_malloc(sizeof(struct WinMeta), f_name); - world.wmeta->screen = screen; - uint32_t maxy_test = getmaxy(screen); - uint32_t maxx_test = getmaxx(screen); - uint8_t test = (maxy_test > UINT16_MAX || maxx_test > UINT16_MAX); - exit_err(test, err_s); + world.wmeta->screen = initscr(); + uint32_t maxy_test = getmaxy(world.wmeta->screen); + uint32_t maxx_test = getmaxx(world.wmeta->screen); + exit_err(maxy_test > UINT16_MAX || maxx_test > UINT16_MAX, err_s); world.wmeta->padsize.y = maxy_test; world.wmeta->padsize.x = maxx_test; world.wmeta->chain_start = 0; @@ -465,7 +448,7 @@ extern void init_win(struct Win ** wp, char * title, int16_t height, w->next = 0; w->winmapsize.y = 0; w->winmapsize.x = 0; - w->winmap = NULL; + w->winmap = NULL; w->title = try_malloc(strlen(title) + 1, f_name); sprintf(w->title, "%s", title); w->draw = func; @@ -492,10 +475,11 @@ extern void init_win(struct Win ** wp, char * title, int16_t height, -extern void free_winmeta() +extern void free_winmeta_and_endwin() { delwin(world.wmeta->pad); free(world.wmeta); + endwin(); } @@ -536,7 +520,7 @@ extern void suspend_win(struct Win * w) { world.wmeta->chain_start = w->next; } - char pad_refitted = 0; + uint8_t pad_refitted = 0; if (world.wmeta->chain_end != w) { w->next->prev = w->prev; @@ -555,10 +539,8 @@ extern void suspend_win(struct Win * w) world.wmeta->active = w->prev; } } - w->prev = 0; w->next = 0; - if (0 == pad_refitted) { refit_pad(); @@ -632,11 +614,10 @@ extern void shift_active_win(char dir) if ('f' == dir) { shift_win_forward(); + update_wins(world.wmeta->chain_start); + return; } - else - { - shift_win_backward(); - } + shift_win_backward(); update_wins(world.wmeta->chain_start); } @@ -652,9 +633,8 @@ extern void draw_all_wins() { /* Draw windows' borders first, then windows. */ - draw_wins_borderlines(world.wmeta->chain_start, world.wmeta->active, - world.wmeta->pad); - draw_wins_bordercorners(world.wmeta->chain_start, world.wmeta->pad); + draw_wins_borderlines(world.wmeta->chain_start); + draw_wins_bordercorners(world.wmeta->chain_start); draw_wins(world.wmeta->chain_start); /* Draw virtual screen scroll hints. */ diff --git a/src/windows.h b/src/windows.h index aeea14c..8485321 100644 --- a/src/windows.h +++ b/src/windows.h @@ -66,11 +66,11 @@ struct WinMeta -/* Initialize empty "wmeta" on terminal "screen". All struct members are - * initialized to 0, except for the newly created virtual screen "pad" and its - * size (height: that of the terminal screen; width: 1 cell). +/* Initialize empty "wmeta" on terminal screen. All struct members initialize to + * 0, except for .screen, the newly created virtual screen .pad and its .padsize + * (height: that of the terminal screen; width: 1 cell). */ -extern void init_win_meta(WINDOW * screen); +extern void init_win_meta(); /* Initialize a Win child "wp" of "wmeta" to "title", "height" and "width" and * appoint "func"() as its .draw. Initialize other members to 0. @@ -85,8 +85,8 @@ extern void init_win_meta(WINDOW * screen); extern void init_win(struct Win ** wp, char * title, int16_t height, int16_t width, void * func); -/* Free allocated memory for an initialized Win / WinMeta structs. */ -extern void free_winmeta(); +/* Free memory initialized Win/WinMeta structs; endwin() for the latter, too. */ +extern void free_winmeta_and_endwin(); extern void free_win(struct Win * win); /* Append/suspend window "w" to/from chain of visible windows below "wmeta".