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MainWindow.vala
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MainWindow.vala
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/*
* Copyright (c) 2017 Ricky Bassom (https://github.com/rickybassom)
*
* 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 2 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, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301 USA
*
*/
public struct Countdown {
int id;
string title;
int end_date;
int start_date;
}
public class MainWindow : Gtk.Dialog {
public GenericArray<Countdown?> countdowns { get; private set; }
public string data_file { get; construct set; }
public Gtk.FlowBox grid { get; construct set; }
public Gtk.Popover create_popover { get; construct set; }
public Gtk.Entry new_title_entry { get; construct set; }
public DatePicker new_end_date_entry { get; construct set; }
public DatePicker new_start_date_entry { get; construct set; }
public Gtk.Button new_create_button { get; construct set; }
public Gtk.Revealer new_warning_rev { get; construct set; }
public Gtk.Label new_warning_label { get; construct set; }
public new Gtk.Button add_button { get; construct set; }
public bool editing { get; set; default = false; }
public bool creating { get; set; default = false; }
private const int seconds_in_min = 86400;
private const int refresh_time = 300000; // 5 min
private const int pbar_size = 105;
private const string pbar_progress_color = "#3689e6";
private const string pbar_complete_color = "#c6262e";
public MainWindow (Gtk.Application application) {
Object (application: application,
icon_name: "com.github.rickybassom.date-countdown",
resizable: false,
title: _("Date Countdown"));
}
construct {
set_keep_below (true);
stick ();
valign = Gtk.Align.START;
halign = Gtk.Align.START;
var home_dir = Environment.get_home_dir ();
data_file = home_dir + "/.countdowns.txt";
grid = new Gtk.FlowBox ();
grid.valign = Gtk.Align.START;
grid.set_min_children_per_line (5);
grid.set_max_children_per_line (5);
grid.set_selection_mode (Gtk.SelectionMode.NONE);
grid.can_focus = false;
grid.button_press_event.connect ((e) => {
if (e.button == Gdk.BUTTON_PRIMARY) {
begin_move_drag ((int) e.button, (int) e.x_root, (int) e.y_root, e.time);
return true;
}
return false;
});
draw_countdowns ();
add_button = new Gtk.Button.with_label (_("Add"));
add_button.set_tooltip_text("Add new countdown");
add_button.margin = 4;
add_button.halign = Gtk.Align.CENTER;
add_button.clicked.connect (() => {
creating = true;
new_title_entry.text = "";
var now_date = new DateTime.from_unix_local ((int) get_time_now ().to_unix ());
var future_date = new DateTime.from_unix_local ((int) get_time_now ().add_days (1).to_unix ());
new_end_date_entry.calendar.select_day (future_date.get_day_of_month ());
new_end_date_entry.calendar.select_month (future_date.get_month ()-1, future_date.get_year ());
new_start_date_entry.calendar.select_day (now_date.get_day_of_month ());
new_start_date_entry.calendar.select_month (now_date.get_month ()-1, now_date.get_year ());
new_end_date_entry.date = future_date;
new_start_date_entry.date = now_date;
create_popover.visible = true;
});
new_warning_rev = new Gtk.Revealer ();
new_warning_rev.reveal_child = false;
new_warning_rev.set_transition_type (Gtk.RevealerTransitionType.SLIDE_DOWN);
new_warning_label = new Gtk.Label ("");
new_warning_label.get_style_context ().add_class ("warning");
new_warning_rev.add (new_warning_label);
new_title_entry = new Gtk.Entry ();
new_title_entry.placeholder_text = _("Title");
new_end_date_entry = new DatePicker ();
new_start_date_entry = new DatePicker ();
new_create_button = new Gtk.Button.with_label (_("Create"));
new_create_button.get_style_context ().add_class (Gtk.STYLE_CLASS_SUGGESTED_ACTION);
new_create_button.clicked.connect (() => {
var validate = validate_input (new_title_entry.text,
(int) new_end_date_entry.date.to_unix (), (int) new_start_date_entry.date.to_unix ());
if (validate == null) {
add_countdown (new_title_entry.text, new_end_date_entry.date.to_unix (),
new_start_date_entry.date.to_unix ());
create_popover.visible = false;
draw_countdowns ();
} else {
new_warning_label.label = validate;
new_warning_rev.reveal_child = true;
}
});
create_popover = new Gtk.Popover (add_button);
// create_popover.constrain_to = Gtk.PopoverConstraint.NONE;
create_popover.position = Gtk.PositionType.TOP;
var create_popover_box = new Gtk.Box (Gtk.Orientation.VERTICAL, 8);
create_popover_box.add (new_warning_rev);
create_popover_box.add (new Gtk.Label (_("Title: ")));
create_popover_box.add (new_title_entry);
create_popover_box.add (new Gtk.Label (_("Enter start date: ")));
create_popover_box.add (new_start_date_entry);
create_popover_box.add (new Gtk.Label (_("Enter end date: ")));
create_popover_box.add (new_end_date_entry);
create_popover_box.add (new_create_button);
create_popover_box.show_all ();
create_popover.add (create_popover_box);
create_popover.closed.connect (() => {
creating = false;
new_warning_label.label = "";
new_warning_rev.reveal_child = false;
});
var content_box = get_content_area () as Gtk.Box;
content_box.border_width = 0;
content_box.pack_start (grid, true, true, 0);
content_box.pack_end (add_button, false, false, 0);
content_box.show_all ();
button_press_event.connect ((e) => {
if (e.button == Gdk.BUTTON_PRIMARY && !editing && !creating) {
begin_move_drag ((int) e.button, (int) e.x_root, (int) e.y_root, e.time);
return true;
}
return false;
});
Timeout.add (refresh_time, () => {
if (!editing) draw_countdowns ();
return true;
});
}
private void draw_countdowns () {
grid.forall ((element) => grid.remove (element));
load_countdowns ();
if (countdowns.length == 0){
grid.margin = 130;
} else if (countdowns.length == 1) {
grid.margin = 20;
} else {
grid.margin = 0;
}
countdowns.foreach ((countdown) => {
var countdown_box = new Gtk.Box (Gtk.Orientation.VERTICAL, 0);
countdown_box.set_tooltip_text("Right click to edit or remove");
countdown_box.margin_left = 10;
countdown_box.margin_right = 10;
var pbar = new CircularProgressWidgets.CircularProgressBar ();
pbar.line_cap = Cairo.LineCap.ROUND;
pbar.margin = 8;
pbar.width_request = pbar_size;
pbar.height_request = pbar_size;
pbar.line_width = 8;
var title_label = new Gtk.Label (countdown.title);
title_label.get_style_context ().add_class ("countdown-title");
title_label.margin_bottom = 6;
title_label.max_width_chars = 14;
title_label.ellipsize = Pango.EllipsizeMode.END;
title_label.set_tooltip_text (countdown.title);
int days_remaining = unix_to_days (countdown.end_date - (int) get_time_now ().to_unix ());
int days_finished = unix_to_days (countdown.end_date - countdown.start_date) - days_remaining;
pbar.percentage = (double) days_finished / (days_remaining + days_finished);
countdown_box.add (pbar);
countdown_box.add (title_label);
if (pbar.percentage >= 1.0) { // if completed
pbar.progress_fill_color = pbar_complete_color;
var completed_label = new Gtk.Label (_("Completed"));
completed_label.get_style_context ().add_class ("info-text");
countdown_box.add (completed_label);
} else {
pbar.progress_fill_color = pbar_progress_color;
var days_remaining_label = new Gtk.Label (
"<b>" + _("Days remaining: ") + "</b>" + days_remaining.to_string ());
days_remaining_label.set_use_markup (true);
days_remaining_label.get_style_context ().add_class ("info-text");
var days_finished_label = new Gtk.Label (
"<b>" + _("Days finished: ") + "</b>" + days_finished.to_string ());
days_finished_label.set_use_markup (true);
days_finished_label.get_style_context ().add_class ("info-text");
countdown_box.add (days_remaining_label);
countdown_box.add (days_finished_label);
}
var event_box = new Gtk.EventBox ();
event_box.add (countdown_box);
event_box.button_release_event.connect ((e) => {
if (e.button == Gdk.BUTTON_SECONDARY) {
if (countdowns.length == 1){
grid.margin_left = 170;
grid.margin_right = 170;
grid.margin_bottom = 50;
}
else if (countdowns.length <= 5){
grid.margin = 50;
}
editing = true;
var edit_warning_rev = new Gtk.Revealer ();
edit_warning_rev.reveal_child = false;
edit_warning_rev.set_transition_type (Gtk.RevealerTransitionType.SLIDE_DOWN);
var edit_warning_label = new Gtk.Label ("");
edit_warning_label.get_style_context ().add_class ("warning");
edit_warning_rev.add (edit_warning_label);
Gtk.Popover edit_popover = new Gtk.Popover (pbar);
// edit_popover.constrain_to = Gtk.PopoverConstraint.NONE;
edit_popover.closed.connect (() => {
editing = false;
edit_popover.visible = false;
edit_warning_label.label = "";
edit_warning_rev.reveal_child = false;
grid.margin = 0;
});
var edit_popover_box = new Gtk.Box (Gtk.Orientation.VERTICAL, 8);
var edit_button = new Gtk.Button.with_label (_("Save changes"));
edit_button.get_style_context ().add_class (Gtk.STYLE_CLASS_SUGGESTED_ACTION);
var remove_button = new Gtk.Button.with_label (_("Remove"));
remove_button.get_style_context ().add_class (Gtk.STYLE_CLASS_DESTRUCTIVE_ACTION);
remove_button.margin_top = 16;
var edit_title_entry = new Gtk.Entry ();
edit_title_entry.placeholder_text = _("Title");
var edit_end_date_entry = new DatePicker ();
var edit_start_date_entry = new DatePicker ();
var end_date = new DateTime.from_unix_local (countdown.end_date);
var start_date = new DateTime.from_unix_local (countdown.start_date);
edit_end_date_entry.calendar.select_day (end_date.get_day_of_month ());
edit_end_date_entry.calendar.select_month (end_date.get_month ()-1, end_date.get_year ());
edit_start_date_entry.calendar.select_day (start_date.get_day_of_month ());
edit_start_date_entry.calendar.select_month (start_date.get_month ()-1, start_date.get_year ());
edit_title_entry.text = countdown.title;
edit_end_date_entry.date = end_date;
edit_start_date_entry.date = start_date;
edit_button.clicked.connect (() => {
var validate = validate_input (edit_title_entry.text,
(int) edit_end_date_entry.date.to_unix (), (int) edit_start_date_entry.date.to_unix ());
if (validate == null) {
edit_countdown (countdown.id, edit_title_entry.text,
edit_end_date_entry.date.to_unix (), edit_start_date_entry.date.to_unix ());
draw_countdowns ();
edit_popover.visible = false;
} else {
edit_warning_label.label = validate;
edit_warning_rev.reveal_child = true;
}
});
remove_button.clicked.connect (() => {
editing = false;
remove_countdown (countdown.id);
draw_countdowns ();
});
edit_popover_box.add (edit_warning_rev);
edit_popover_box.add (new Gtk.Label (_("Title: ")));
edit_popover_box.add (edit_title_entry);
edit_popover_box.add (new Gtk.Label (_("Start date: ")));
edit_popover_box.add (edit_start_date_entry);
edit_popover_box.add (new Gtk.Label (_("End date: ")));
edit_popover_box.add (edit_end_date_entry);
edit_popover_box.add (edit_button);
edit_popover_box.add (remove_button);
show_all();
while(Gtk.events_pending()) {
Gtk.main_iteration();
}
edit_popover_box.show_all ();
edit_popover.add (edit_popover_box);
edit_popover.show_all ();
}
return true;
});
grid.add (event_box);
});
grid.forall ((element) => element.can_focus = false);
grid.show_all ();
}
private string? validate_input (string title, int end_date, int start_date) {
if (title == "") return _("Enter title");
if (start_date >= end_date) return _("Start date is greater than or equal to the end date");
if (end_date < (int) get_time_now ().to_unix ()) return _("End date is smaller than or equal to the current date");
if (start_date > (int) get_time_now ().to_unix ()) return _("Start date is greater than the current date");
return null;
}
private File create_start_data_file_if_not_exists () {
var file = File.new_for_path (data_file);
if (!file.query_exists ()) {
stderr.printf ("File '%s' doesn't exist.\n", file.get_path ());
var now = get_time_now ();
var future = now.add_days (3);
try {
file.create (FileCreateFlags.NONE);
} catch (Error e) {
error ("%s", e.message);
}
if (file.query_exists ()) {
stdout.printf ("File successfully created.\n");
}
add_countdown (_("Welcome"), future.to_unix (), now.to_unix () - seconds_in_min); // minus a day off start date
}
return file;
}
private GenericArray<Countdown?> load_countdowns () {
var file = create_start_data_file_if_not_exists ();
countdowns = new GenericArray<Countdown?> ();
try {
// Open file for reading and wrap returned FileInputStream into a
// DataInputStream, so we can read line by line
var dis = new DataInputStream (file.read ());
string line;
int count = 0;
// Read lines until end of file (null) is reached
while ((line = dis.read_line (null)) != null) {
countdowns.add (line_to_countdown (line, count));
count++;
}
} catch (Error e) {
error ("%s", e.message);
}
return countdowns;
}
private Countdown line_to_countdown (string line, int id) {
string[] split = line.split (",", 3);
return Countdown () {
id = id,
title = split[2],
end_date = int.parse(split[0]),
start_date = int.parse(split[1])
};
}
private void add_countdown (string title, int64 end_date, int64 start_date) {
create_start_data_file_if_not_exists ();
string file_contents = "";
try {
FileUtils.get_contents (data_file, out file_contents);
FileUtils.set_contents (data_file, file_contents + "%i,%i,%s".printf ((int) end_date, (int) start_date, title) + "\n");
} catch (Error e) {
error ("%s", e.message);
}
}
private void edit_countdown (int id, string title, int64 end_date, int64 start_date) {
var file = File.new_for_path (data_file);
string new_file = "";
try {
// Open file for reading and wrap returned FileInputStream into a
// DataInputStream, so we can read line by line
var dis = new DataInputStream (file.read ());
string line;
int count = 0;
// Read lines until end of file (null) is reached
while ((line = dis.read_line (null)) != null) {
if (count != id) {
new_file = new_file + line + "\n";
} else {
new_file = new_file + "%i,%i,%s".printf ((int) end_date, (int) start_date, title) + "\n";
}
count++;
}
} catch (Error e) {
error ("%s", e.message);
}
try {
FileUtils.set_contents (data_file, new_file);
} catch (Error e) {
error ("%s", e.message);
}
}
private void remove_countdown (int id) {
var file = File.new_for_path (data_file);
string new_file = "";
try {
// Open file for reading and wrap returned FileInputStream into a
// DataInputStream, so we can read line by line
var dis = new DataInputStream (file.read ());
string line;
int count = 0;
// Read lines until end of file (null) is reached
while ((line = dis.read_line (null)) != null) {
if (count != id) new_file = new_file + line + "\n";
count++;
}
} catch (Error e) {
error ("%s", e.message);
}
try {
FileUtils.set_contents (data_file, new_file);
} catch (Error e) {
error ("%s", e.message);
}
}
private int unix_to_days (int unix_time) {
int days = (int) Math.ceil ((double) unix_time / (double) seconds_in_min);
return days;
}
private static DateTime get_time_now () {
return new DateTime.now_local ();
}
}