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LICENSE

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+MIT License (MIT)
+
+Copyright (c) 2022 David J. Allen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Godot Calendar
+
+A simple calendar with VERY basic functionality to select day, month, and year. 
+
+![screenshot](assets/screenshots/ss1.png)
+
+## How to Use
+
+Simply clone the repository and add the scene to your project. The calendar only has a single signal that returns the date (day, month, and year) as a dictionary. 
+
+```gdscript
+onready var calendar = $Calendar
+
+func _ready():
+    calendar.connect("date_selected", self, "print_date")
+
+func print_date(date):
+    print("date selected: ", date)
+    print("weekday: ", calendar.get_weekday(date))
+```
+
+
+
+## TODO
+
+- [ ] Better define popup/hide behavior.
+
+- [ ] Add dates for before and after current month.
+
+- [ ] Add method to get daylight savings for selected date.
+
+- [ ] Make more customizable??

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+All of these images are taken from 100% royalty free sites, 
+and have afterwards been edited. 
+
+Although you might want to add your own calendar button image.
+
+Have fun!

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+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

default_env.tres

@@ -0,0 +1,7 @@
+[gd_resource type="Environment" load_steps=2 format=2]
+
+[sub_resource type="ProceduralSky" id=1]
+
+[resource]
+background_mode = 2
+background_sky = SubResource( 1 )

icon.png.import

@@ -0,0 +1,35 @@
+[remap]
+
+importer="texture"
+type="StreamTexture"
+path="res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex"
+metadata={
+"vram_texture": false
+}
+
+[deps]
+
+source_file="res://icon.png"
+dest_files=[ "res://.import/icon.png-487276ed1e3a0c39cad0279d744ee560.stex" ]
+
+[params]
+
+compress/mode=0
+compress/lossy_quality=0.7
+compress/hdr_mode=0
+compress/bptc_ldr=0
+compress/normal_map=0
+flags/repeat=0
+flags/filter=true
+flags/mipmaps=false
+flags/anisotropic=false
+flags/srgb=2
+process/fix_alpha_border=true
+process/premult_alpha=false
+process/HDR_as_SRGB=false
+process/invert_color=false
+process/normal_map_invert_y=false
+stream=false
+size_limit=0
+detect_3d=true
+svg/scale=1.0

project.godot

@@ -0,0 +1,23 @@
+; Engine configuration file.
+; It's best edited using the editor UI and not directly,
+; since the parameters that go here are not all obvious.
+;
+; Format:
+;   [section] ; section goes between []
+;   param=value ; assign values to parameters
+
+config_version=4
+
+[application]
+
+config/name="Calendar"
+run/main_scene="res://src/Calendar.tscn"
+config/icon="res://icon.png"
+
+[physics]
+
+common/enable_pause_aware_picking=true
+
+[rendering]
+
+environment/default_environment="res://default_env.tres"

src/Calendar.gd

@@ -0,0 +1,160 @@
+extends TextureButton
+
+signal date_selected(date)
+
+enum Month { JAN = 1, FEB = 2, MAR = 3, APR = 4, MAY = 5, JUN = 6, JUL = 7,
+		AUG = 8, SEP = 9, OCT = 10, NOV = 11, DEC = 12 }
+
+
+const MONTH_NAME = [ 
+	"January", "February", "March", "April", 
+	"May", "June", "July", "August", 
+	"September", "October", "November", "December"
+]
+
+const MONTH_DAYS = [
+	31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
+]
+
+const WEEKDAY_NAME = [ 
+	"Sunday", "Monday", "Tuesday", "Wednesday", 
+	"Thursday", "Friday", "Saturday"
+]
+
+const MAX_YEAR = 9999
+const MIN_YEAR = 1970
+onready var popup = $popup
+onready var label_month = $popup/form/bg/header/labels/month
+onready var label_year = $popup/form/bg/header/labels/year
+onready var button_month_prev = $popup/form/bg/header/prev_month
+onready var button_month_next = $popup/form/bg/header/next_month
+onready var button_year_prev = $popup/form/bg/header/prev_year
+onready var button_year_next = $popup/form/bg/header/next_year
+onready var days = $popup/form/days
+
+var day = 1
+var month = 1
+var year = 1970
+var weekday = 0
+var dst = 0
+var is_open = false
+
+
+func _ready():
+	# Set to today's date
+	var date = OS.get_date()
+	month = date["month"]
+	year = date["year"]
+	day = date["day"]
+	dst = date["dst"]
+	weekday = date["weekday"]
+	connect("pressed", self, "_show_popup")
+	button_month_prev.connect("pressed", self, "_goto_prev_month")
+	button_month_next.connect("pressed", self, "_goto_next_month")
+	button_year_prev.connect("pressed", self, "_goto_prev_year")
+	button_year_next.connect("pressed", self, "_goto_next_year")
+	popup.connect("popup_hide", self, "set_open", [false])
+	setup_day_buttons()
+
+
+func set_open(value):
+	is_open = value
+
+
+func _show_popup():
+	if is_open:
+		popup.hide()
+		is_open = false
+		return
+	
+	label_month.set_text(MONTH_NAME[month-1])
+	label_year.set_text(str(year))
+	popup.set_position(get_global_position()+Vector2(40, 40))
+	popup.popup()
+	is_open = true
+
+
+func set_year(value):
+	year = value
+	
+
+func _goto_next_month():
+	if month < 12:
+		month += 1
+		weekday = MONTH_DAYS[month-1] % 7
+	else:
+		if year >= MAX_YEAR:
+			return
+		month = 1
+		year += 1
+	label_month.set_text(MONTH_NAME[month-1])
+	label_year.set_text(str(year))
+	setup_day_buttons()
+
+
+func _goto_prev_month():
+	if month > 1:
+		month -= 1
+		weekday = MONTH_DAYS[month-1] % 7
+	else:
+		if year <= MIN_YEAR:
+			return
+		month = 12
+		year -= 1
+	label_month.set_text(MONTH_NAME[month-1])
+	label_year.set_text(str(year))
+	setup_day_buttons()
+
+
+func _goto_next_year():
+	year = clamp(year+1, MIN_YEAR, MAX_YEAR)
+	label_year.set_text(str(year))
+	setup_day_buttons()
+
+
+func _goto_prev_year():
+	year = clamp(year-1, MIN_YEAR, MAX_YEAR)
+	label_year.set_text(str(year))
+	setup_day_buttons()
+
+
+func get_weekday(date):
+	# See ref for details: https://artofmemory.com/blog/how-to-calculate-the-day-of-the-week/
+	# Only works for Gregorian calendar
+	var day = date["day"]
+	var month = date["month"]
+	var year = date["year"]
+	var is_leap_year = false
+	if year % 4 == 0:
+		is_leap_year = year % 400 == 0 or year % 100 == 0
+	var yy = int(str(year).right(2))	# get last 2 digits in year
+	var year_code = fmod((yy + floor(yy / 4)), 7.0)
+	var month_code = [0, 3, 3, 6, 1, 4, 6, 2, 5, 0, 3, 5][month-1]
+	var century_code = [4, 2, 0, 6, 4, 2, 0][floor(year/100)-17] # -17 because start with 1700
+	var leap_year_code = -1 if is_leap_year and month < 2 else 0
+#	print("year code: ", year_code, "\nmonth code: ", month_code, "\ncentury_code: ", century_code, "\nleap code: ", leap_year_code, "\nday: ", day)
+	return fmod((year_code + month_code + century_code + day + leap_year_code), 7)
+
+
+func setup_day_buttons():
+	var days_in_month = MONTH_DAYS[month-1]
+	var date = {"day": 1, "month": month, "year": year}
+	var first_weekday_month = get_weekday(date)
+#	print("weekday for {month}/{day}/{year}: ".format(date), get_weekday(date))
+	clear_buttons()
+	var iter = 1
+	for i in range(first_weekday_month, first_weekday_month+days_in_month):
+		var button = days.get_child(7+i) # +7 for labels
+		button.set_text(str(iter))
+		if button.is_connected("pressed", self, "emit_signal"):
+			button.disconnect("pressed", self, "emit_signal")
+		button.connect("pressed", self, "emit_signal", ["date_selected", {"day": iter, "month": month, "year": year}])
+		if i == day:
+			button.set_pressed(true)
+		iter += 1
+
+
+func clear_buttons():
+	for i in range(7, days.get_child_count()):
+		var button = days.get_child(i)
+		button.set_text("")

src/Calendar.tscn

@@ -0,0 +1,580 @@
+[gd_scene load_steps=12 format=2]
+
+[ext_resource path="res://src/Calendar.gd" type="Script" id=1]
+[ext_resource path="res://assets/textures/btn_32x32_04.png" type="Texture" id=2]
+[ext_resource path="res://assets/textures/btn_32x32_03.png" type="Texture" id=3]
+[ext_resource path="res://src/calendar_days.tres" type="ButtonGroup" id=4]
+[ext_resource path="res://assets/textures/right.png" type="Texture" id=5]
+[ext_resource path="res://assets/textures/left.png" type="Texture" id=6]
+[ext_resource path="res://assets/textures/fastBackwards.png" type="Texture" id=7]
+[ext_resource path="res://assets/textures/fastForward.png" type="Texture" id=8]
+
+[sub_resource type="StyleBoxFlat" id=1]
+bg_color = Color( 0.819608, 0.8, 0.8, 1 )
+border_width_left = 4
+border_width_top = 4
+border_width_right = 4
+border_width_bottom = 4
+border_color = Color( 0.376471, 0.376471, 0.376471, 0.784314 )
+border_blend = true
+corner_radius_top_left = 8
+corner_radius_top_right = 8
+corner_radius_bottom_right = 8
+corner_radius_bottom_left = 8
+expand_margin_left = 16.0
+expand_margin_right = 16.0
+expand_margin_top = 16.0
+expand_margin_bottom = 16.0
+shadow_color = Color( 0, 0, 0, 0.235294 )
+shadow_size = 16
+
+[sub_resource type="StyleBoxFlat" id=3]
+border_width_left = 1
+border_width_top = 1
+border_width_right = 1
+border_width_bottom = 1
+border_blend = true
+corner_radius_top_left = 4
+corner_radius_top_right = 4
+corner_radius_bottom_right = 4
+corner_radius_bottom_left = 4
+shadow_color = Color( 0, 0, 0, 0.352941 )
+shadow_size = 6
+
+[sub_resource type="StyleBoxEmpty" id=2]
+
+[node name="Calendar" type="TextureButton"]
+anchor_right = 1.0
+anchor_bottom = 1.0
+margin_right = -1024.0
+margin_bottom = -600.0
+rect_min_size = Vector2( 32, 32 )
+texture_normal = ExtResource( 3 )
+texture_pressed = ExtResource( 2 )
+script = ExtResource( 1 )
+
+[node name="popup" type="PopupPanel" parent="."]
+visible = true
+margin_left = 43.0
+margin_top = 43.0
+margin_right = 354.0
+margin_bottom = 341.0
+rect_min_size = Vector2( 350, 325 )
+size_flags_horizontal = 3
+size_flags_vertical = 3
+custom_styles/panel = SubResource( 1 )
+
+[node name="form" type="VBoxContainer" parent="popup"]
+margin_left = 4.0
+margin_top = 4.0
+margin_right = 350.0
+margin_bottom = 321.0
+
+[node name="bg" type="PanelContainer" parent="popup/form"]
+self_modulate = Color( 0.54902, 0.54902, 0.54902, 0.431373 )
+margin_right = 346.0
+margin_bottom = 16.0
+custom_styles/panel = SubResource( 3 )
+
+[node name="header" type="HBoxContainer" parent="popup/form/bg"]
+margin_left = 1.0
+margin_top = 1.0
+margin_right = 345.0
+margin_bottom = 15.0
+
+[node name="prev_year" type="TextureButton" parent="popup/form/bg/header"]
+modulate = Color( 0, 0, 0, 1 )
+margin_right = 32.0
+margin_bottom = 14.0
+rect_min_size = Vector2( 32, 0 )
+texture_normal = ExtResource( 7 )
+expand = true
+
+[node name="prev_month" type="TextureButton" parent="popup/form/bg/header"]
+modulate = Color( 0, 0, 0, 1 )
+margin_left = 36.0
+margin_right = 68.0
+margin_bottom = 14.0
+rect_min_size = Vector2( 32, 0 )
+texture_normal = ExtResource( 6 )
+expand = true
+
+[node name="labels" type="HBoxContainer" parent="popup/form/bg/header"]
+margin_left = 72.0
+margin_right = 272.0
+margin_bottom = 14.0
+rect_min_size = Vector2( 200, 0 )
+alignment = 1
+
+[node name="month" type="Label" parent="popup/form/bg/header/labels"]
+margin_left = 59.0
+margin_right = 104.0
+margin_bottom = 14.0
+text = "January"
+align = 2
+valign = 1
+max_lines_visible = 1
+
+[node name="year" type="Label" parent="popup/form/bg/header/labels"]
+margin_left = 108.0
+margin_right = 140.0
+margin_bottom = 14.0
+size_flags_horizontal = 4
+size_flags_vertical = 5
+custom_styles/normal = SubResource( 2 )
+text = "2022"
+valign = 1
+max_lines_visible = 1
+
+[node name="next_month" type="TextureButton" parent="popup/form/bg/header"]
+modulate = Color( 0, 0, 0, 1 )
+margin_left = 276.0
+margin_right = 308.0
+margin_bottom = 14.0
+rect_min_size = Vector2( 32, 0 )
+texture_normal = ExtResource( 5 )
+expand = true
+
+[node name="next_year" type="TextureButton" parent="popup/form/bg/header"]
+modulate = Color( 0, 0, 0, 1 )
+margin_left = 312.0
+margin_right = 344.0
+margin_bottom = 14.0
+rect_min_size = Vector2( 32, 0 )
+texture_normal = ExtResource( 8 )
+expand = true
+
+[node name="spacer" type="Control" parent="popup/form"]
+margin_top = 20.0
+margin_right = 346.0
+margin_bottom = 35.0
+rect_min_size = Vector2( 0, 15 )
+
+[node name="days" type="GridContainer" parent="popup/form"]
+margin_top = 39.0
+margin_right = 346.0
+margin_bottom = 197.0
+size_flags_horizontal = 3
+columns = 7
+
+[node name="sunday" type="Label" parent="popup/form/days"]
+margin_right = 46.0
+margin_bottom = 14.0
+text = "Sun"
+align = 1
+
+[node name="monday" type="Label" parent="popup/form/days"]
+margin_left = 50.0
+margin_right = 96.0
+margin_bottom = 14.0
+text = "Mon"
+align = 1
+
+[node name="tuesday" type="Label" parent="popup/form/days"]
+margin_left = 100.0
+margin_right = 146.0
+margin_bottom = 14.0
+text = "Tue"
+align = 1
+
+[node name="wednesday" type="Label" parent="popup/form/days"]
+margin_left = 150.0
+margin_right = 196.0
+margin_bottom = 14.0
+text = "Wed"
+align = 1
+
+[node name="thursday" type="Label" parent="popup/form/days"]
+margin_left = 200.0
+margin_right = 246.0
+margin_bottom = 14.0
+text = "Thu"
+align = 1
+
+[node name="friday" type="Label" parent="popup/form/days"]
+margin_left = 250.0
+margin_right = 296.0
+margin_bottom = 14.0
+text = "Fri"
+align = 1
+
+[node name="saturday" type="Label" parent="popup/form/days"]
+margin_left = 300.0
+margin_right = 346.0
+margin_bottom = 14.0
+text = "Sat"
+align = 1
+
+[node name="0" type="Button" parent="popup/form/days"]
+margin_top = 18.0
+margin_right = 46.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="1" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 18.0
+margin_right = 96.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="2" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 18.0
+margin_right = 146.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="3" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 18.0
+margin_right = 196.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="4" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 18.0
+margin_right = 246.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="5" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 18.0
+margin_right = 296.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="6" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 18.0
+margin_right = 346.0
+margin_bottom = 38.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="7" type="Button" parent="popup/form/days"]
+margin_top = 42.0
+margin_right = 46.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="8" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 42.0
+margin_right = 96.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="9" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 42.0
+margin_right = 146.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="10" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 42.0
+margin_right = 196.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="11" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 42.0
+margin_right = 246.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="12" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 42.0
+margin_right = 296.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="13" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 42.0
+margin_right = 346.0
+margin_bottom = 62.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="14" type="Button" parent="popup/form/days"]
+margin_top = 66.0
+margin_right = 46.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="15" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 66.0
+margin_right = 96.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="16" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 66.0
+margin_right = 146.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="17" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 66.0
+margin_right = 196.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="18" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 66.0
+margin_right = 246.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="19" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 66.0
+margin_right = 296.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="20" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 66.0
+margin_right = 346.0
+margin_bottom = 86.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="21" type="Button" parent="popup/form/days"]
+margin_top = 90.0
+margin_right = 46.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="22" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 90.0
+margin_right = 96.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="23" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 90.0
+margin_right = 146.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="24" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 90.0
+margin_right = 196.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="25" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 90.0
+margin_right = 246.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="26" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 90.0
+margin_right = 296.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="27" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 90.0
+margin_right = 346.0
+margin_bottom = 110.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="28" type="Button" parent="popup/form/days"]
+margin_top = 114.0
+margin_right = 46.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="29" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 114.0
+margin_right = 96.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="30" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 114.0
+margin_right = 146.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="31" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 114.0
+margin_right = 196.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="32" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 114.0
+margin_right = 246.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="33" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 114.0
+margin_right = 296.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="34" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 114.0
+margin_right = 346.0
+margin_bottom = 134.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="35" type="Button" parent="popup/form/days"]
+margin_top = 138.0
+margin_right = 46.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="36" type="Button" parent="popup/form/days"]
+margin_left = 50.0
+margin_top = 138.0
+margin_right = 96.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="37" type="Button" parent="popup/form/days"]
+margin_left = 100.0
+margin_top = 138.0
+margin_right = 146.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="38" type="Button" parent="popup/form/days"]
+margin_left = 150.0
+margin_top = 138.0
+margin_right = 196.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="39" type="Button" parent="popup/form/days"]
+margin_left = 200.0
+margin_top = 138.0
+margin_right = 246.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="40" type="Button" parent="popup/form/days"]
+margin_left = 250.0
+margin_top = 138.0
+margin_right = 296.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="41" type="Button" parent="popup/form/days"]
+margin_left = 300.0
+margin_top = 138.0
+margin_right = 346.0
+margin_bottom = 158.0
+size_flags_horizontal = 3
+toggle_mode = true
+group = ExtResource( 4 )
+
+[node name="Tween" type="Tween" parent="."]

src/Date.gd

@@ -0,0 +1,54 @@
+
+
+# Supported Date Formats:
+# DD : Two digit day of month
+# MM : Two digit month
+# YY : Two digit year
+# YYYY : Four digit year
+func date(date_format = "DD-MM-YY") -> String:
+	if("DD".is_subsequence_of(date_format)):
+		date_format = date_format.replace("DD", str(day()).pad_zeros(2))
+	if("MM".is_subsequence_of(date_format)):
+		date_format = date_format.replace("MM", str(month()).pad_zeros(2))
+	if("YYYY".is_subsequence_of(date_format)):
+		date_format = date_format.replace("YYYY", str(year()))
+	elif("YY".is_subsequence_of(date_format)):
+		date_format = date_format.replace("YY", str(year()).substr(2,3))
+	return date_format
+
+
+enum Month { JAN = 1, FEB = 2, MAR = 3, APR = 4, MAY = 5, JUN = 6, JUL = 7,
+		AUG = 8, SEP = 9, OCT = 10, NOV = 11, DEC = 12 }
+
+
+const MONTH_NAME = [ 
+		"Jan", "Feb", "Mar", "Apr", 
+		"May", "Jun", "Jul", "Aug", 
+		"Sep", "Oct", "Nov", "Dec" ]
+
+const WEEKDAY_NAME = [ 
+		"Sunday", "Monday", "Tuesday", "Wednesday", 
+		"Thursday", "Friday", "Saturday" ]
+
+func get_days_in_month(month : int, year : int) -> int:
+	var number_of_days : int
+	if(month == Month.APR || month == Month.JUN || month == Month.SEP
+			|| month == Month.NOV):
+		number_of_days = 30
+	elif(month == Month.FEB):
+		var is_leap_year = (year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)
+		if(is_leap_year):
+			number_of_days = 29
+		else:
+			number_of_days = 28
+	else:
+		number_of_days = 31
+	
+	return number_of_days
+
+func get_weekday(day : int, month : int, year : int) -> int:
+	var t : Array = [0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4]
+	if(month < 3):
+		year -= 1
+	return (year + year/4 - year/100 + year/400 + t[month - 1] + day) % 7
+

src/calendar_days.tres

@@ -0,0 +1,3 @@
+[gd_resource type="ButtonGroup" format=2]
+
+[resource]