--- /dev/null
+/*
+ * Copyright (C) 2015 Andy Spencer <andy753421@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define _XOPEN_SOURCE
+#define _XOPEN_SOURCE_EXTENDED
+
+#include <string.h>
+#include <ncurses.h>
+
+#include "date.h"
+#include "form.h"
+
+/* Constants */
+#define TEXT_WIDTH (20)
+#define NUMBER_WIDTH (10)
+#define DATE_WIDTH (4+1+2+1+2 +1+ 2+1+2)
+
+/* Local variables */
+static WINDOW *form_win;
+static int form_row;
+static int form_col;
+
+/* Helpeer functions */
+int label_width(const char *label)
+{
+ int len = 0;
+ for (int i = 0; label[i]; i++)
+ if (label[i] != '_')
+ len++;
+ return len;
+}
+
+void label_print(WINDOW *win, const char *label)
+{
+ for (int i = 0; label[i]; i++) {
+ if (label[i] == '_' && label[i+1])
+ waddch(form_win, label[++i]
+ | A_UNDERLINE | A_BOLD);
+ else
+ waddch(form_win, label[i]);
+ }
+}
+
+int field_width(form_field_t *field)
+{
+ // Calculate list width
+ int list_size = 0;
+ if (field->type == FORM_LIST) {
+ for (int i = 0; i < field->list.num; i++) {
+ int width = strlen(field->list.map[i]);
+ if (width > list_size)
+ list_size = width;
+ }
+ }
+
+ // Calculate field size
+ int width = 0;
+ if (field->before)
+ width += strlen(field->before);
+ switch (field->type) {
+ case FORM_LABEL: width += label_width(field->label); break;
+ case FORM_TEXT: width += TEXT_WIDTH; break;
+ case FORM_DATE: width += DATE_WIDTH; break;
+ case FORM_NUMBER: width += NUMBER_WIDTH; break;
+ case FORM_BUTTON: width += label_width(field->label); break;
+ case FORM_LIST: width += list_size; break;
+ }
+ if (field->after)
+ width += strlen(field->after);
+ return width;
+}
+
+void field_draw(WINDOW *win, form_field_t *field, int width, int hover)
+{
+ char **map = field->list.map;
+ int idx = field->list.idx;
+
+ char *before = field->before ?: "";
+ char *after = field->after ?: "";
+
+ int boxed = field->type == FORM_TEXT ||
+ field->type == FORM_NUMBER;
+ int under = 0;
+
+ int begin = getcurx(win);
+ int maxstr = width - strlen(before) - strlen(after);
+
+ if (hover) wattron(win, A_REVERSE);
+ if (under) wattron(win, A_UNDERLINE);
+ if (boxed) waddch(win, '[');
+ if (boxed) maxstr -= 2;
+
+ wprintw(win, "%s", before);
+ switch (field->type) {
+ case FORM_LABEL:
+ label_print(win, field->label);
+ break;
+ case FORM_TEXT:
+ wprintw(win, "%-.*s",
+ maxstr, field->text);
+ break;
+ case FORM_DATE:
+ if (no_date(&field->date))
+ wprintw(win, "%s", "undefined");
+ else
+ wprintw(win, "%04d-%02d-%02d %02d:%02d",
+ field->date.year, field->date.month+1,
+ field->date.day+1, field->date.hour,
+ field->date.min);
+ break;
+ case FORM_NUMBER:
+ wprintw(win, "%d", field->number);
+ break;
+ case FORM_BUTTON:
+ wprintw(win, "%s", field->label);
+ break;
+ case FORM_LIST:
+ if (map)
+ wprintw(win, "%s", map[idx]);
+ else
+ wprintw(win, "%s", "undefined");
+ break;
+ }
+ int pad = width-(getcurx(win)-begin)-boxed;
+ wprintw(win, "%-*s", pad, after);
+
+ if (boxed) waddch(win, ']');
+ if (under) wattroff(win, A_UNDERLINE);
+ if (hover) wattroff(win, A_REVERSE);
+}
+
+int is_active(form_t *form, int r, int c)
+{
+ if (r == form_row && c == form_col)
+ return 1;
+ for (int i = c+1; i < form->cols && !form->fields[r][i]; i++)
+ if (r == form_row && i == form_col)
+ return 1;
+ return 0;
+}
+
+int can_active(form_t *form, int r, int c)
+{
+ for (int i = c; i >= 0; i--) {
+ if (!form->fields[r][i])
+ continue;
+ if (form->fields[r][i]->type != FORM_LABEL)
+ return 1;
+ else
+ return 0;
+ }
+ return 0;
+}
+
+void set_active(form_t *form, int ro, int co)
+{
+ // Set first field
+ if (ro==0 && co==0) {
+ for (int r = 0; r < form->rows; r++)
+ for (int c = 0; c < form->cols; c++) {
+ if (can_active(form, r, c)) {
+ form_row = r;
+ form_col = c;
+ return;
+ }
+ }
+ }
+
+ // Move up/down
+ if (ro) {
+ for (int ri = form_row+ro; ri>=0 && ri<form->rows; ri+=ro) {
+ if (can_active(form, ri, form_col)) {
+ form_row = ri;
+ return;
+ }
+ }
+ }
+
+ // Move left/right
+ if (co) {
+ for (int ci = form_col+co; ci>=0 && ci<form->cols; ci+=co) {
+ for (int ri = form_row; ri < form->rows; ri++)
+ if (can_active(form, form_row, ci)) {
+ form_row = ri;
+ form_col = ci;
+ return;
+ }
+ for (int ri = form_row; ri >= 0; ri--)
+ if (can_active(form, form_row, ci)) {
+ form_row = ri;
+ form_col = ci;
+ return;
+ }
+ }
+ }
+}
+
+/* Initialize */
+void form_init(void)
+{
+ form_win = newwin(LINES, COLS, 0, 0);
+}
+
+/* Resize */
+void form_resize(void)
+{
+ mvwin(form_win, 0, 0);
+ wresize(form_win, LINES, COLS);
+}
+
+/* Run */
+int form_draw(form_t *form)
+{
+ // Calculate column width
+ // do this by column, and right to left so that
+ // we can add in the extra space available for
+ // blank spaces.
+ int col_size[form->cols];
+ for (int c = form->cols-1; c >= 0; c--) {
+ col_size[c] = 0;
+ for (int r = 0; r < form->rows; r++) {
+ form_field_t *field = form->fields[r][c];
+ if (form->fields[r][c]) {
+ int width = field_width(field);
+ for (int i = c+1; i < form->cols; i++) {
+ if (form->fields[r][i])
+ break;
+ width -= col_size[i];
+ }
+ if (width > col_size[c])
+ col_size[c] = width;
+ }
+ }
+ }
+
+ // Make sure we have an active field
+ if (!can_active(form, form_row, form_col))
+ set_active(form, 0, 0);
+
+ // Display form
+ for (int r = 0; r < form->rows; r++) {
+ for (int c = 0; c < form->cols; c++) {
+ form_field_t *field = form->fields[r][c];
+ // Calculate form field size
+ int width = col_size[c];
+ for (int i = c+1; i < form->cols; i++) {
+ if (form->fields[r][i])
+ break;
+ width += col_size[i];
+ }
+ // Draw the field
+ if (field)
+ field_draw(form_win, field, width,
+ is_active(form, r, c));
+ else if (c == 0)
+ wprintw(form_win, "%*s", width, "");
+ }
+ wprintw(form_win, "\n");
+ }
+ return 0;
+}
+
+int form_run(form_t *form, int key, mmask_t btn, int row, int col)
+{
+ // Check movement keys
+ switch (key) {
+ case 'h': set_active(form, 0, -1); goto redraw;
+ case 'j': set_active(form, 1, 0); goto redraw;
+ case 'k': set_active(form, -1, 0); goto redraw;
+ case 'l': set_active(form, 0, 1); goto redraw;
+ }
+
+ // Search for hotkeys
+ for (int r = 0; r < form->rows; r++)
+ for (int c = 0; c < form->cols; c++)
+ if (form->fields[r][c] &&
+ form->fields[r][c]->hotkey == key) {
+ form_row = r;
+ form_col = c;
+ goto redraw;
+ }
+ return 0;
+
+redraw:
+ werase(form_win);
+ form_draw(form);
+ wrefresh(form_win);
+ return 1;
+}
+
+/* Test functions */
+static form_field_t title = TEXT('t');
+static form_field_t location = TEXT('o');
+static form_field_t start = DATE('s');
+static form_field_t end = DATE('e');
+static form_field_t due_date = DATE('u');
+static form_field_t completed = NUMBER('p', .after="%");
+static form_field_t calendar = LIST('c');
+static form_field_t category = LIST('g');
+static form_field_t repeat = LIST('r');
+static form_field_t frequency = NUMBER(0);
+static form_field_t weekdays = BUTTONS("Su Mo Tu We Th Fr Sa");
+static form_field_t details = TEXT('d');
+
+static form_t edit = { 12, 4, {
+ { LABEL("_Title: "), &title },
+ { LABEL("L_ocation: "), &location },
+ { },
+ { LABEL("_Start: "), &start, LABEL(" _End: "), &end },
+ { LABEL("D_ue Date: "), &due_date, LABEL(" Com_pleted: "), &completed },
+ { LABEL("_Calendar: "), &calendar, LABEL(" Cate_gory: "), &category },
+ { },
+ { LABEL("_Repeat: "), &repeat, LABEL(" Every: "), &frequency },
+ { },
+ { NULL, &weekdays },
+ { },
+ { LABEL("_Details: "), &details },
+} };
+
+void form_test(void)
+{
+ /* Setup Curses */
+ initscr();
+ cbreak();
+ noecho();
+ keypad(stdscr, TRUE);
+ start_color();
+ curs_set(false);
+ timeout(100);
+ use_default_colors();
+ mousemask(ALL_MOUSE_EVENTS, NULL);
+
+ /* Init */
+ form_init();
+
+ /* Run */
+ while (1) {
+ MEVENT btn;
+ int chr = getch();
+ if (chr == 'q')
+ break;
+ if (chr == KEY_MOUSE)
+ if (getmouse(&btn) != OK)
+ continue;
+ switch (chr) {
+ case KEY_RESIZE:
+ form_resize();
+ refresh();
+ werase(form_win);
+ form_draw(&edit);
+ wrefresh(form_win);
+ continue;
+ case '\14': // Ctrl-L
+ clear();
+ case '\7': // Ctrl-G
+ refresh();
+ werase(form_win);
+ form_draw(&edit);
+ wrefresh(form_win);
+ continue;
+ }
+ if (form_run(&edit, chr, btn.bstate, btn.y, btn.x))
+ continue;
+ if (chr == ERR) // timeout
+ continue;
+ }
+
+ /* Finish */
+ endwin();
+}
--- /dev/null
+/*
+ * Copyright (C) 2015 Andy Spencer <andy753421@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* Widget Macros */
+#define TEXT(k,...) {.type=FORM_TEXT, .hotkey=k, __VA_ARGS__}
+#define NUMBER(k,...) {.type=FORM_NUMBER, .hotkey=k, __VA_ARGS__}
+#define DATE(k,...) {.type=FORM_DATE, .hotkey=k, __VA_ARGS__}
+#define BUTTON(k,...) {.type=FORM_BUTTON, .hotkey=k, __VA_ARGS__}
+#define LIST(k,...) {.type=FORM_LIST, .hotkey=k, __VA_ARGS__}
+
+#define HEAD(t,...) &(form_field_t){.type=FORM_LABEL, .label=t, .attr.bold=1}
+#define LABEL(t,...) &(form_field_t){.type=FORM_LABEL, .label=t}
+
+#define CHECK(t,...) {.type=FORM_BUTTON, .label=t}
+#define TOGGLE(t,...) {.type=FORM_BUTTON, .label=t}
+#define RADIO(t,...) {.type=FORM_BUTTON, .label=t}
+#define BUTTONS(t,...) {.type=FORM_BUTTON, .label=t} // LIST[buttons]
+
+/* Widget types */
+typedef enum {
+ FORM_LABEL,
+ FORM_TEXT,
+ FORM_DATE,
+ FORM_NUMBER,
+ FORM_BUTTON,
+ FORM_LIST
+} form_type_t;
+
+/* Text attributes */
+typedef struct {
+ int bold : 1;
+} form_attr_t;
+
+/* Form data type */
+typedef struct {
+ form_type_t type;
+ form_attr_t attr;
+ int hotkey;
+ char *before;
+ char *label;
+ char *after;
+ union {
+ char text[256];
+ date_t date;
+ int number;
+ int button;
+ struct {
+ char **map;
+ int num;
+ int idx;
+ } list;
+ };
+} form_field_t;
+
+typedef struct {
+ int rows;
+ int cols;
+ form_field_t *fields[][10];
+} form_t;
+
+void form_init(void);
+
+int form_run(form_t *form, int key, mmask_t btn, int row, int col);
projects / lackey / commitdiff