Added HSV Adjust Dialog

Scripts/Canvas.gd

@@ -1010,3 +1010,81 @@ func blend_rect(bg : Image, brush : Image, src_rect : Rect2, dst : Vector2) -> v
 			if out_color.a != 0:
 				bg.set_pixel(dst_x, dst_y, out_color)
 			brush.unlock()
+
+func adjust_hsv(id,delta)->void:
+	var selection_only:bool = !Global.selected_pixels.empty()
+	var layer:Image = layers[Global.current_layer][0]
+	layer.lock()
+	match id:
+		#Hue
+		0:
+			for i in range(layer.get_width()):
+				for j in range(layer.get_height()):
+					if(selection_only and Global.selected_pixels.has(Vector2(i,j))):
+						var c: Color = layer.get_pixel(i,j)
+						var hue = range_lerp(c.h,0,1,0,360)
+						hue = hue + delta
+						
+						while(hue >= 360):
+							hue -= 360
+						while(hue < 0):
+							hue += 360
+						c.h = range_lerp(hue,0,360,0,1)
+						layer.set_pixel(i,j,c)
+					elif(!selection_only):
+						var c: Color = layer.get_pixel(i,j)
+						var hue = range_lerp(c.h,0,1,0,360)
+						hue = hue + delta
+						
+						while(hue >= 360):
+							hue -= 360
+						while(hue < 0):
+							hue += 360
+						c.h = range_lerp(hue,0,360,0,1)
+						layer.set_pixel(i,j,c)
+			
+		#Saturation
+		1:
+			for i in range(layer.get_width()):
+				for j in range(layer.get_height()):
+					if(selection_only and Global.selected_pixels.has(Vector2(i,j))):
+						var c: Color = layer.get_pixel(i,j)
+						var sat = range_lerp(c.s,0,1,0,100)
+						sat = sat + delta
+						
+						sat = clamp(sat,0,100)
+						c.s = range_lerp(sat,0,100,0,1)
+						layer.set_pixel(i,j,c)
+					elif(!selection_only):
+						var c: Color = layer.get_pixel(i,j)
+						var sat = range_lerp(c.s,0,1,0,100)
+						sat = sat + delta
+						
+						sat = clamp(sat,0,100)
+						c.s = range_lerp(sat,0,100,0,1)
+						layer.set_pixel(i,j,c)
+		
+		#value
+		2:
+			for i in range(layer.get_width()):
+				for j in range(layer.get_height()):
+					if(selection_only and Global.selected_pixels.has(Vector2(i,j))):
+						var c: Color = layer.get_pixel(i,j)
+						var val = range_lerp(c.v,0,1,0,100)
+						val = val + delta
+						
+						val = clamp(val,0,100)
+						c.v = range_lerp(val,0,100,0,1)
+						layer.set_pixel(i,j,c)
+					elif(!selection_only):
+						var c: Color = layer.get_pixel(i,j)
+						var val = range_lerp(c.v,0,1,0,100)
+						val = val + delta
+						
+						val = clamp(val,0,100)
+						c.v = range_lerp(val,0,100,0,1)
+						layer.set_pixel(i,j,c)
+	
+	layer.unlock()
+	update_texture(Global.current_layer)
+	pass

Scripts/Dialogs/HSVDialog.gd

@@ -0,0 +1,91 @@
+extends WindowDialog
+
+onready var hue_slider = $ HBoxContainer/Sliders/Hue
+onready var sat_slider = $ HBoxContainer/Sliders/Saturation
+onready var val_slider = $ HBoxContainer/Sliders/Value
+
+onready var hue_spinbox = $ HBoxContainer/TextBoxes/Hue
+onready var sat_spinbox = $ HBoxContainer/TextBoxes/Saturation
+onready var val_spinbox = $ HBoxContainer/TextBoxes/Value
+
+onready var hue_text = $ HBoxContainer/TextBoxes/Hue.get_line_edit()
+onready var sat_text = $ HBoxContainer/TextBoxes/Saturation.get_line_edit()
+onready var val_text = $ HBoxContainer/TextBoxes/Value.get_line_edit()
+
+var oldHue = 180
+var oldSat = 50
+var oldVal = 50
+
+func _ready():
+	get_close_button().connect("pressed",self,"_on_Cancel_pressed")
+
+func _on_Cancel_pressed():
+	Global.undo_redo.undo() 
+	visible = false
+	reset()
+
+func _on_Apply_pressed():
+	Global.canvas.handle_redo("Draw")
+	reset()
+	visible = false
+
+
+func reset():
+	disconnect_signals()
+	hue_slider.value = 180
+	sat_slider.value = 50
+	val_slider.value = 50
+	hue_text.text = str(180)
+	sat_text.text = str(50)
+	val_text.text = str(50)
+	reconnect_signals()
+
+func disconnect_signals():
+	hue_slider.disconnect("value_changed",self,"_on_Hue_value_changed")
+	sat_slider.disconnect("value_changed",self,"_on_Saturation_value_changed")
+	val_slider.disconnect("value_changed",self,"_on_Value_value_changed")
+	hue_spinbox.disconnect("value_changed",self,"_on_Hue_value_changed")
+	sat_spinbox.disconnect("value_changed",self,"_on_Saturation_value_changed")
+	val_spinbox.disconnect("value_changed",self,"_on_Value_value_changed")
+
+func reconnect_signals():
+	hue_slider.connect("value_changed",self,"_on_Hue_value_changed")
+	sat_slider.connect("value_changed",self,"_on_Saturation_value_changed")
+	val_slider.connect("value_changed",self,"_on_Value_value_changed")
+	hue_spinbox.connect("value_changed",self,"_on_Hue_value_changed")
+	sat_spinbox.connect("value_changed",self,"_on_Saturation_value_changed")
+	val_spinbox.connect("value_changed",self,"_on_Value_value_changed")
+
+
+func _on_HSVDialog_about_to_show():
+	Global.canvas.handle_undo("Draw")
+
+func _on_Hue_value_changed(value):
+	hue_text.text = str(value)
+	hue_slider.value = int(value)
+	var delta = value - oldHue
+	oldHue = value
+	Global.canvas.adjust_hsv(0,delta)
+
+func _on_Saturation_value_changed(value):
+	sat_text.text = str(value)
+	sat_slider.value = int(value)
+	var delta = value - oldSat
+	oldSat = value
+	Global.canvas.adjust_hsv(1,delta)
+
+
+func _on_Value_value_changed(value):
+	val_text.text = str(value)
+	val_slider.value = int(value)
+	var delta = value - oldVal
+	oldVal = value
+	Global.canvas.adjust_hsv(2,delta)
+
+
+
+
+
+
+
+

Scripts/Main.gd

@@ -70,7 +70,8 @@ func _ready() -> void:
 		"Rotate Image" : 0,
 		"Invert colors" : 0,
 		"Desaturation" : 0,
-		"Outline" : 0
+		"Outline" : 0,
+		"Adjust Hue/Sat/Val":0
 		}
 	var help_menu_items := {
 		"View Splash Screen" : 0,
@@ -385,6 +386,9 @@ func image_menu_id_pressed(id : int) -> void:
 		7: # Outline
 			$OutlineDialog.popup_centered()
 			Global.can_draw = false
+		8: # HSV
+			$HSVDialog.popup_centered()
+			Global.can_draw = false
 
 func help_menu_id_pressed(id : int) -> void:
 	match id: