[bim] minor cleanup
This commit is contained in:
K. Lange
parent
8e4292c6d6
commit
a1f52c1679
93
apps/bim.c
93
apps/bim.c
@ -259,16 +259,24 @@ typedef struct {
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} line_t;
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/**
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* Global terminal state
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* Global configuration state
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*/
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int term_width, term_height;
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int csr_x_actual, csr_y_actual;
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struct {
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/* Terminal size */
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int term_width, term_height;
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int bottom_size;
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/**
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* Command-line options
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*/
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int hilight_on_open = 1;
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int initial_file_is_read_only = 0;
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/* Command-line parameters */
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int hilight_on_open;
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int initial_file_is_read_only;
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} global_config = {
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0, /* term_width */
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0, /* term_height */
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2, /* bottom_size */
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1, /* hilight_on_open */
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0 /* initial_file_is_read_only */
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};
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void redraw_line(int j, int x);
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@ -321,14 +329,14 @@ int bim_getch(void) {
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* line buffers.
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*/
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typedef struct _env {
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int bottom_size;
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short lineno_width;
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short loading:1;
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short tabs:1;
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short modified:1;
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short readonly:1;
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short mode;
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short tabstop;
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char * file_name;
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int offset;
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int coffset;
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@ -338,8 +346,6 @@ typedef struct _env {
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int col_no;
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char * search;
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struct syntax_definition * syntax;
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short mode;
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short tabstop;
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line_t ** lines;
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} buffer_t;
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@ -931,7 +937,7 @@ _multiline:
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* this ends up drawing from bottom to top when multiple lines
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* need to be redrawn by a recursive call.
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*/
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if (offset+1 >= env->offset && offset+1 < env->offset + term_height - env->bottom_size - 1) {
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if (offset+1 >= env->offset && offset+1 < env->offset + global_config.term_height - global_config.bottom_size - 1) {
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redraw_line(offset + 1 - env->offset,offset+1);
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}
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}
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@ -1171,7 +1177,6 @@ void setup_buffer(buffer_t * env) {
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env->line_count = 1; /* Buffers always have at least one line */
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env->modified = 0;
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env->readonly = 0;
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env->bottom_size = 2;
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env->offset = 0;
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env->line_avail = 8; /* Default line buffer capacity */
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env->tabs = 1; /* Tabs by default */
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@ -1668,7 +1673,7 @@ void redraw_line(int j, int x) {
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* If this is the active line, the current character cell offset should be used.
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* (Non-active lines are not shifted and always render from the start of the line)
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*/
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render_line(env->lines[x], term_width - 3 - num_size, (x + 1 == env->line_no) ? env->coffset : 0);
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render_line(env->lines[x], global_config.term_width - 3 - num_size, (x + 1 == env->line_no) ? env->coffset : 0);
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/* Clear the rest of the line */
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clear_to_end();
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@ -1682,7 +1687,7 @@ void redraw_text(void) {
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hide_cursor();
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/* Figure out the available size of the text region */
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int l = term_height - env->bottom_size - 1;
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int l = global_config.term_height - global_config.bottom_size - 1;
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int j = 0;
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/* Draw each line */
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@ -1713,7 +1718,7 @@ void redraw_statusbar(void) {
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hide_cursor();
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/* Move cursor to the status bar line (second from bottom */
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place_cursor(1, term_height - 1);
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place_cursor(1, global_config.term_height - 1);
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/* Set background colors for status line */
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set_colors(COLOR_STATUS_FG, COLOR_STATUS_BG);
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@ -1748,7 +1753,7 @@ void redraw_statusbar(void) {
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sprintf(right_hand, "Line %d/%d Col: %d ", env->line_no, env->line_count, env->col_no);
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/* Move the cursor appropriately to draw it */
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place_cursor_h(term_width - strlen(right_hand)); /* TODO: What if we're localized and this has wide chars? */
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place_cursor_h(global_config.term_width - strlen(right_hand)); /* TODO: What if we're localized and this has wide chars? */
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printf("%s",right_hand);
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fflush(stdout);
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}
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@ -1764,7 +1769,7 @@ void redraw_commandline(void) {
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hide_cursor();
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/* Move cursor to the last line */
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place_cursor(1, term_height);
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place_cursor(1, global_config.term_height);
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/* Set background color */
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set_colors(COLOR_FG, COLOR_BG);
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@ -1838,7 +1843,7 @@ void render_status_message(char * message, ...) {
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hide_cursor();
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/* Move cursor to the status bar line (second from bottom */
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place_cursor(1, term_height - 1);
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place_cursor(1, global_config.term_height - 1);
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/* Set background colors for status line */
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set_colors(COLOR_STATUS_FG, COLOR_STATUS_BG);
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@ -1903,7 +1908,7 @@ void place_cursor_actual(void) {
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needs_redraw = 1;
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}
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while (y > term_height - env->bottom_size) {
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while (y > global_config.term_height - global_config.bottom_size) {
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y--;
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env->offset++;
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needs_redraw = 1;
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@ -1917,9 +1922,9 @@ void place_cursor_actual(void) {
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}
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/* If the cursor has gone off screen to the right... */
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if (x > term_width - 1) {
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if (x > global_config.term_width - 1) {
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/* Adjust the offset appropriately to scroll horizontally */
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int diff = x - (term_width - 1);
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int diff = x - (global_config.term_width - 1);
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env->coffset += diff;
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x -= diff;
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redraw_text();
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@ -1935,8 +1940,6 @@ void place_cursor_actual(void) {
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/* Move the actual terminal cursor */
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place_cursor(x,y);
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csr_x_actual = x;
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csr_y_actual = y;
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/* Show the cursor */
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show_cursor();
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@ -1949,8 +1952,8 @@ void SIGWINCH_handler(int sig) {
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(void)sig;
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struct winsize w;
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ioctl(0, TIOCGWINSZ, &w);
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term_width = w.ws_col;
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term_height = w.ws_row;
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global_config.term_width = w.ws_col;
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global_config.term_height = w.ws_row;
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redraw_all();
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signal(SIGWINCH, SIGWINCH_handler);
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@ -1967,8 +1970,8 @@ void initialize(void) {
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struct winsize w;
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ioctl(0, TIOCGWINSZ, &w);
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term_width = w.ws_col;
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term_height = w.ws_row;
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global_config.term_width = w.ws_col;
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global_config.term_height = w.ws_row;
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set_unbuffered();
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mouse_enable();
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@ -2064,7 +2067,7 @@ void open_file(char * file) {
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FILE * f = fopen(file, "r");
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if (!f) {
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if (hilight_on_open) {
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if (global_config.hilight_on_open) {
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env->syntax = match_syntax(file);
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}
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env->loading = 0;
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@ -2097,7 +2100,7 @@ void open_file(char * file) {
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remove_line(env->lines, env->line_no-1);
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}
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if (hilight_on_open) {
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if (global_config.hilight_on_open) {
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env->syntax = match_syntax(file);
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for (int i = 0; i < env->line_count; ++i) {
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recalculate_syntax(env->lines[i],i);
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@ -2295,14 +2298,14 @@ void cursor_down(void) {
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}
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/* If we've scrolled past the bottom of the screen, scroll the screen */
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if (env->line_no > env->offset + term_height - env->bottom_size - 1) {
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if (env->line_no > env->offset + global_config.term_height - global_config.bottom_size - 1) {
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env->offset += 1;
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/* Tell terminal to scroll */
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shift_up();
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/* A new line appears on screen at the bottom, draw it */
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int l = term_height - env->bottom_size - 1;
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int l = global_config.term_height - global_config.bottom_size - 1;
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if (env->offset + l < env->line_count + 1) {
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redraw_line(l-1, env->offset + l-1);
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} else {
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@ -2839,11 +2842,11 @@ _accept_candidate:
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*cstart = '\0';
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} else {
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/* Print candidates in status bar */
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char tmp[term_width+1];
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memset(tmp, 0, term_width+1);
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char tmp[global_config.term_width+1];
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memset(tmp, 0, global_config.term_width+1);
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int offset = 0;
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for (int i = 0; i < candidate_count; ++i) {
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if (offset + 1 + (signed)strlen(candidates[i]) > term_width - 5) {
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if (offset + 1 + (signed)strlen(candidates[i]) > global_config.term_width - 5) {
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strcat(tmp, "...");
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break;
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}
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@ -3352,10 +3355,10 @@ int handle_escape(int * this_buf, int * timeout, int c) {
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case '~':
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switch (this_buf[*timeout-1]) {
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case '6':
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goto_line(env->line_no + term_height - 6);
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goto_line(env->line_no + global_config.term_height - 6);
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break;
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case '5':
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goto_line(env->line_no - (term_height - 6));
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goto_line(env->line_no - (global_config.term_height - 6));
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break;
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case '3':
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if (env->mode == MODE_INSERT) {
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@ -3454,7 +3457,7 @@ void insert_mode(void) {
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}
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env->col_no = 1;
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env->line_no += 1;
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if (env->line_no > env->offset + term_height - env->bottom_size - 1) {
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if (env->line_no > env->offset + global_config.term_height - global_config.bottom_size - 1) {
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env->offset += 1;
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}
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redraw_text();
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@ -3509,10 +3512,10 @@ int main(int argc, char * argv[]) {
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while ((opt = getopt(argc, argv, "?sR")) != -1) {
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switch (opt) {
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case 's':
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hilight_on_open = 0;
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global_config.hilight_on_open = 0;
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break;
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case 'R':
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initial_file_is_read_only = 1;
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global_config.initial_file_is_read_only = 1;
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break;
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case '?':
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show_usage(argv);
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@ -3524,7 +3527,7 @@ int main(int argc, char * argv[]) {
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if (argc > optind) {
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open_file(argv[optind]);
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if (initial_file_is_read_only) {
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if (global_config.initial_file_is_read_only) {
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env->readonly = 1;
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}
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} else {
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@ -3587,7 +3590,7 @@ int main(int argc, char * argv[]) {
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place_cursor_actual();
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break;
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case ' ':
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goto_line(env->line_no + term_height - 6);
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goto_line(env->line_no + global_config.term_height - 6);
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break;
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case 'O':
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{
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@ -3605,7 +3608,7 @@ int main(int argc, char * argv[]) {
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env->lines = add_line(env->lines, env->line_no);
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env->col_no = 1;
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env->line_no += 1;
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if (env->line_no > env->offset + term_height - env->bottom_size - 1) {
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if (env->line_no > env->offset + global_config.term_height - global_config.bottom_size - 1) {
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env->offset += 1;
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}
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redraw_text();
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