diff options
Diffstat (limited to 'draw.c')
| -rw-r--r-- | draw.c | 542 |
1 files changed, 0 insertions, 542 deletions
@@ -1,542 +0,0 @@ -#include <stdbool.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> - -//Windows/Unix Compatability -#if defined _WIN32 || defined _WIN64 -#include <ncurses/ncurses.h> -#else -#include <ncurses.h> -#endif - -#include "include/cache.h" -#include "include/draw.h" -#include "include/entry.h" -#include "include/group.h" -#include "include/read_cfg.h" -#define FLAG_COUNT 3 -#define GAP_SIZE 1 -#define MAX_LEN 6 -#define WIDTH (getmaxx(stdscr)) //width of the entire term -#define HEIGHT (getmaxy(stdscr)) //height of the entire term - -bool *handle_args(int argc, char **argv, char **cfg_path); -void print_help(char *exec_name); -void update_display(bool resize); -void draw_title(); -void draw_win(WINDOW *new, char *title); -void fill_col(int mode); //0 = GROUP, 1 = ENTRY -char *trim_name(char *name, char *path, int max_len); -void update_col(int mode, int hl_where, bool resize); //0 = last, 1 = first; 0 = GROUP, 1 = ENTRY, 2 = INFO -void switch_col(); -void trav_col(int new_i); -int locateChar(char input); - -WINDOW *group_win = NULL; -WINDOW *entry_win = NULL; -WINDOW *info_win = NULL; -int g_hover; -int e_hover; -int true_hover; //0 = hovering on groups, 1 = hovering on entries -GROUP **g; -ENTRY **e; -int g_count; -int e_count; -int g_offset = 0; -int e_offset = 0; - -int main(int argc, char **argv){ - bool *flags_set = NULL; - char *cfg_path = malloc(sizeof(char) * BUF_LEN); - int input; - char full_command[BUF_LEN]; //what will be executed - int prev_width; //used to check if the window was resized - int prev_height; //used to check if the window was resized - int i; - - srand(time(NULL)); - - flags_set = handle_args(argc, argv, &cfg_path); - if(flags_set[1]) return(0); //exit if help flag was passed - if(flags_set[2]) freopen("/dev/null", "w", stdout); //turn off output if quiet flag was passed - if(!flags_set[0]) strcpy(cfg_path, find_config()); //find_config if not config flag was passed - - //Fill Groups - //read the contents of the cfg file; print help message if invalid - if(!cfg_interp(cfg_path)){ - print_help(argv[0]); - return 0; - } - - //Remove Empty Groups from the Array - clean_groups(); - g = get_groups(); //retrieve results of cfg_interp - g_count = get_gcount(g); //retrieve number of groups in g (only do this after removing empty groups) - - //check that there are is at least one valid group - if(g_count == 0){ - printf("Error: No Entries!\n"); - exit(0); - } - - //load cached data - load_cache(&g_hover, &e_hover, &true_hover, cfg_path); - - //reopen stdout for drawing menu - freopen("/dev/tty", "w", stdout); - - initscr(); - cbreak(); - keypad(stdscr, true); - noecho(); - set_escdelay(1); //used to avoid delay after ESC is pressed - start_color(); - - init_pair(0, COLOR_WHITE, COLOR_BLACK); - init_pair(1, COLOR_BLACK, COLOR_WHITE); - init_pair(2, COLOR_BLACK, COLOR_YELLOW); - init_pair(3, COLOR_BLACK, COLOR_GREEN); - attron(COLOR_PAIR(0)); - - prev_width = WIDTH; - prev_height = HEIGHT; - - //update to show menu - update_display(false); - - //update highlighting for loaded location - if(true_hover){ - i = e_hover; - true_hover = 0; - trav_col(g_hover); - switch_col(); - trav_col(i); - } - else trav_col(g_hover); - update_display(true); - - //drawing is done, now run a while loop to receive input (ESC ends this loop) - while(input != 27){ - input = getch(); - - switch(input){ - case 9: //tab key - case KEY_LEFT: - case KEY_RIGHT: - //switch true_hover to look at the other column - switch_col(); - break; - - case KEY_DOWN: - trav_col((true_hover ? e_hover : g_hover)+1); - break; - - case KEY_UP: - trav_col((true_hover ? e_hover : g_hover)-1); - break; - - case KEY_PPAGE: - //case KEY_SUP: - trav_col(0); - break; - - case KEY_NPAGE: - //case KEY_SDOWN: - trav_col((true_hover ? e_count : g_count)-1); - break; - - case KEY_F(3): - //jump to random group/entry - trav_col(rand() % (true_hover ? e_count : g_count)); - break; - - case KEY_F(5): - //manual refresh (for debug purposes) - update_display(true); - break; - - case 10: //enter key - //create a green highlight over the launched entry - mvwchgat(entry_win, 1+e_hover-e_offset, 1, entry_win->_maxx-1, A_DIM, 3, NULL); - wrefresh(entry_win); - - launch(); - break; - - default: //a search char was entered, locate where to jump to - trav_col(locateChar(input)); - } - - //redraw all windows if term is resized - if(prev_width != WIDTH || prev_height != HEIGHT) update_display(true); - - //update prevs - prev_width = WIDTH; - prev_height = HEIGHT; - } - - endwin(); - - //save position data to cache - save_to_cache(g_hover, e_hover, true_hover, cfg_path); - - return 0; -} - -bool *handle_args(int argc, char **argv, char **cfg_path){ - //create bool array with set flags - // 0 -> -c|--config - // 1 -> -h|--help - // 2 -> -q|--quiet - - bool *flags_set = calloc(FLAG_COUNT, sizeof(bool)); - int i; - - for(i = 1; i < argc; ++i){ - //-c - if(!strcmp(argv[i], "-c") || !strcmp(argv[i], "--config")){ - ++i; - if(i < argc){ - strcpy(*cfg_path, argv[i]); - flags_set[0] = true; - } - continue; - } - - //-h - if(!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")){ - print_help(argv[0]); - flags_set[1] = true; - break; //break rather than continue; program will quit if a help message is requested - } - - //-q - if(!strcmp(argv[i], "-q") || !strcmp(argv[i], "--quiet")){ - flags_set[2] = true; - continue; - } - } - - return flags_set; -} - -void print_help(char *exec_name){ - printf("Usage: %s [OPTION] [FILE]\n", exec_name); - printf("Draw an Ncurses Menu to Launch Media from\n\n"); - - printf(" -c, --config Specify a configuration file path\n"); - printf(" -h, --help Print this help message\n"); - printf(" -q, --quiet Suppress stdout messages\n"); -} - -void update_display(bool resize){ - if(WIDTH < 20 || HEIGHT < 6){ - endwin(); - printf("Unable to draw: Terminal Window is Too Small\n"); - exit(0); - } - - //title at the top (Terminal Media Launcher) (23 chars) - draw_title(); - - if(group_win != NULL) delwin(group_win); - if(entry_win != NULL) delwin(entry_win); - if(info_win != NULL) delwin(info_win); - - //Draw Columns - group_win = newwin(HEIGHT-(5+GAP_SIZE), WIDTH/2, 2+GAP_SIZE, 0); - entry_win = newwin(HEIGHT-(5+GAP_SIZE), WIDTH-WIDTH/2, 2+GAP_SIZE, WIDTH/2); - info_win = newwin(3, WIDTH, HEIGHT-3, 0); - draw_win(group_win, "GROUP"); - draw_win(entry_win, "ENTRY"); - draw_win(info_win, "INFO"); - update_col(0, 1, resize); - - //start with hover on the first group, draw the entries from the selected group, true_hover is over the groups (rather than the entries) (do update after first draw, only after subsequent (resize) updates) - if(resize){ - update_col(1, 1, resize); - update_col(2, 0, resize); - } - curs_set(0); //hide the cursor - //move(3, (WIDTH/4)+10); - refresh(); -} - -void draw_title(){ - WINDOW *title; - - title = newwin(2, WIDTH, 0, 0); - refresh(); - attron(A_BOLD | A_UNDERLINE); - move(0, (WIDTH-23)/2); - printw("Terminal Media Launcher"); - attroff(A_BOLD | A_UNDERLINE); - box(title, 0, 0); - wrefresh(title); - - return; -} - -void draw_win(WINDOW *new, char *title){ - int title_len = strlen(title); - - box(new, 0, 0); - attron(A_UNDERLINE); - wmove(new, 0, (new->_maxx - title_len)/2); - wprintw(new, "%s", title); - attroff(A_UNDERLINE); - wrefresh(new); - - return; -} - -void fill_col(int mode){ - //mode 0 = group - //mode 1 = entry - - int i; - WINDOW *col = (mode ? entry_win : group_win); - int count = (mode ? e_count : g_count); - int offset = (mode ? e_offset : g_offset); - int max_len = col->_maxx-1; //longest possible string length that can be displayed in the window - int ycoord = 1; - int max_y = HEIGHT-(6+GAP_SIZE); - char *name; - - for(i = 0+offset; i < count; i++){ - if(ycoord >= max_y) break; //reached the bottom of the terminal window, stop drawing - name = (mode ? get_ename(e[i]) : get_gname(g[i])); - - //the name is too long, take the group to the trimming function - if(strlen(name) > max_len) name = trim_name(name, (mode ? get_epath(e[i]) : get_gname(g[i])), max_len); - wmove(col, ycoord, 1); - wprintw(col, "%s", name); - ycoord++; - } - - wrefresh(col); - return; -} - - -char *trim_name(char *name, char *path, int max_len){ - char *relative; - - //group name and path are equivalent: special procedure - if(!(strcmp(name, path))){ - //find relative path name - relative = strrchr(name, '/'); - name = relative+1; - if(strlen(name) <= max_len) return name; - } - - name[max_len] = '\0'; - return name; -} - -void update_col(int mode, int hl_where, bool resize){ - //mode 0 = group - //mode 1 = entry - //mode 2 = info - - WINDOW *col; - char *name; - int name_len; - int y_hl; - char *execution; - - switch(mode){ - case 0: - col = group_win; - name = "GROUP"; - name_len = 5; - break; - - case 1: - col = entry_win; - name = "ENTRY"; - name_len = 5; - break; - - case 2: - col = info_win; - name = "EXECUTION"; - name_len = 9; - break; - - - default: - return; - } - - y_hl = (hl_where ? 1 : col->_maxy-1); - - //reset the column window (including reboxing and redrawing the title) - wclear(col); - box(col, 0, 0); - wmove(col, 0, (col->_maxx - name_len)/2); - wprintw(col, name); - wrefresh(col); - - //update certain info in the col only if not a resizing-related call - switch(mode){ - case 0: - fill_col(0); - if(!resize) mvwchgat(group_win, y_hl, 1, group_win->_maxx-1, A_DIM, 2, NULL); - else mvwchgat(group_win, 1+g_hover-g_offset, 1, group_win->_maxx-1, A_DIM, (true_hover ? 1 : 2), NULL); - break; - - case 1: - e_count = get_ecount(g[g_hover]); - e = get_entries(get_ghead(g[g_hover]), e_count); - fill_col(1); - if(!resize) mvwchgat(entry_win, y_hl, 1, entry_win->_maxx-1, A_DIM, 1, NULL); - else mvwchgat(entry_win, 1+e_hover-e_offset, 1, entry_win->_maxx-1, A_DIM, (true_hover ? 2 : 1), NULL); - break; - - default: - execution = get_launch(); - if(strlen(execution) >= info_win->_maxx){ - execution[info_win->_maxx - 1] = '\0'; - execution[info_win->_maxx - 2] = '.'; - execution[info_win->_maxx - 3] = '.'; - execution[info_win->_maxx - 4] = '.'; - } - mvwprintw(info_win, 1, 1, execution); - - } - - wrefresh(col); - return; -} - -void switch_col(){ - true_hover = (true_hover+1) % 2; - if(true_hover){ - mvwchgat(group_win, 1+g_hover, 1, group_win->_maxx-1, A_DIM, 1, NULL); //adjust group light - mvwchgat(entry_win, 1+e_hover, 1, entry_win->_maxx-1, A_DIM, 2, NULL); //adjust entry light - } - else{ - mvwchgat(group_win, 1+g_hover, 1, group_win->_maxx-1, A_DIM, 2, NULL); //adjust group light - mvwchgat(entry_win, 1+e_hover, 1, entry_win->_maxx-1, A_DIM, 1, NULL); //adjust entry light - } - move(3, (WIDTH/4)+10); - - wrefresh(group_win); - wrefresh(entry_win); - return; -} - -void trav_col(int new_i){ - int *focus = (true_hover ? &e_hover : &g_hover); //make it easy to know which column we are looking at - int *offset = (true_hover ? &e_offset : &g_offset); - int count = (true_hover ? e_count : g_count); - int max_hl = HEIGHT-(3+GAP_SIZE); //for some reason, this works - int min_hl = 5; - int oob_flag = 0; //0 = none, 1 = bottom, 2 = top - - //check if the traversal is valid (i.e. not at top/bottom), alter if not - if(new_i < 0) return; - if(new_i >= count) new_i = count-1; - - //reset previously highlighted entry and group, change focus - mvwchgat(entry_win, 1+e_hover-e_offset, 1, entry_win->_maxx-1, A_NORMAL, 0, NULL); - mvwchgat(group_win, 1+g_hover-g_offset, 1, group_win->_maxx-1, A_NORMAL, 0, NULL); - *focus = new_i; - - - //check offsets relating to new highlight, make sure highlight did not go oob - while(*focus-*offset+5 > max_hl){ - (*offset)++; - oob_flag = 1; - } - while(*focus-*offset+5 < min_hl){ - (*offset)--; - oob_flag = 2; - } - - if(oob_flag > 0) (true_hover ? update_col(1, oob_flag-1, false) : update_col(0, oob_flag-1, false)); - - //highlight newly hovered upon entry/group - mvwchgat(entry_win, 1+e_hover-e_offset, 1, entry_win->_maxx-1, A_DIM, (true_hover ? 2 : 1), NULL); - mvwchgat(group_win, 1+g_hover-g_offset, 1, group_win->_maxx-1, A_DIM, (true_hover ? 1 : 2), NULL); - if(!true_hover){ //a little extra work regarding group hover - e_offset = 0; - update_col(1, 1, false); - e_hover = 0; - } - - wrefresh(group_win); - wrefresh(entry_win); - update_col(2, 0, false); - return; -} - -int locateChar(char input){ - int location = (true_hover ? e_hover : g_hover); - bool fold_case = get_case_sensitivity(); - char first_char; - int i; - - if(fold_case && input >= 97 && input <= 122) input -= 32; - - if(true_hover){ //hovering on entries - for(i = location+1; i < e_count; i++){ - first_char = get_ename(e[i])[0]; - if(fold_case && first_char >= 97 && first_char <= 122) first_char -= 32; - if(input == first_char){ - location = i; - break; - } - } - } - - else{ //hovering on groups - for(i = location+1; i < g_count; i++){ - first_char = get_gname(g[i])[0]; - if(fold_case && first_char >= 97 && first_char <= 122) first_char -= 32; - if(input == get_gname(g[i])[0]){ - location = i; - break; - } - } - } - - return location; -} - -char *get_launch(){ - char *program = get_gprog(g[g_hover]); - char *flags = get_gflags(g[g_hover]); - char *path = get_epath(e[e_hover]); - bool quotes = get_gquotes(g[g_hover]); - char *full_command = malloc(sizeof(char) * BUF_LEN); - - full_command[0] = '\0'; - - //if the entry is an executable file (doesn't have a launcher) - if(!(strcmp(program, "./"))){ - strcat(full_command, "\""); - strcat(full_command, path); - strcat(full_command, "\""); - } - - else{ - if(quotes) strcat(full_command, "\""); - strcat(full_command, program); - if(quotes) strcat(full_command, "\""); - if(flags[0] !='\0'){ - strcat(full_command, " "); - strcat(full_command, flags); - } - strcat(full_command, " "); - strcat(full_command, "\""); - strcat(full_command, path); - strcat(full_command, "\""); - } - - return full_command; - -} |