Added smooth zooming

Camera zooming with the help of a Tween node, toggle-able in the Preferences

Changelog.md

@@ -5,7 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [v0.6.2] - Unreleased
 
-## Added
+### Added
 - Image layer rotation! Choose between 2 rotation algorithms, Rotxel and Nearest Neighbour - Thanks to azagaya!
 - Crowdin integration for contributing translations!
 - Spanish translation - thanks to azagaya!
@@ -14,7 +14,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Added HSV mode to the color picker. (Added automatically because of the Godot 3.2 update)
 - Lanczos scaling interpolation. (Added because of the Godot 3.2 update)
 
-## Changed
+### Changed
 - Updates to the Greek, Russian and Traditional Chinese translations.
 - Replaced some OS alerts with a custom made error dialog.
 - Made the "X" button on the custom brushes a little smaller.

Prefabs/Dialogs/PreferencesDialog.tscn

@@ -40,6 +40,17 @@ margin_right = 205.0
 margin_bottom = 758.0
 size_flags_horizontal = 3
 
+[node name="General" type="VBoxContainer" parent="HSplitContainer/ScrollContainer/VBoxContainer"]
+margin_right = 40.0
+margin_bottom = 40.0
+
+[node name="SmoothZoom" type="CheckBox" parent="HSplitContainer/ScrollContainer/VBoxContainer/General"]
+margin_right = 24.0
+margin_bottom = 24.0
+mouse_default_cursor_shape = 2
+pressed = true
+text = "Smooth Zoom"
+
 [node name="Languages" type="VBoxContainer" parent="HSplitContainer/ScrollContainer/VBoxContainer"]
 margin_right = 205.0
 margin_bottom = 338.0
@@ -205,6 +216,7 @@ text = "Width:"
 margin_left = 82.0
 margin_right = 156.0
 margin_bottom = 24.0
+mouse_default_cursor_shape = 2
 min_value = 1.0
 max_value = 16384.0
 value = 1.0
@@ -221,6 +233,7 @@ margin_left = 82.0
 margin_top = 28.0
 margin_right = 156.0
 margin_bottom = 52.0
+mouse_default_cursor_shape = 2
 min_value = 1.0
 max_value = 16384.0
 value = 1.0
@@ -238,6 +251,7 @@ margin_top = 56.0
 margin_right = 156.0
 margin_bottom = 76.0
 rect_min_size = Vector2( 64, 20 )
+mouse_default_cursor_shape = 2
 
 [node name="GuideColorLabel" type="Label" parent="HSplitContainer/ScrollContainer/VBoxContainer/Grid&Guides/GridOptions"]
 margin_top = 83.0
@@ -251,6 +265,7 @@ margin_top = 80.0
 margin_right = 156.0
 margin_bottom = 100.0
 rect_min_size = Vector2( 64, 20 )
+mouse_default_cursor_shape = 2
 color = Color( 0.63, 0.13, 0.94, 1 )
 
 [node name="Image" type="VBoxContainer" parent="HSplitContainer/ScrollContainer/VBoxContainer"]
@@ -282,6 +297,7 @@ text = "Default Width:"
 margin_left = 114.0
 margin_right = 188.0
 margin_bottom = 24.0
+mouse_default_cursor_shape = 2
 min_value = 1.0
 max_value = 16384.0
 value = 32.0
@@ -298,6 +314,7 @@ margin_left = 114.0
 margin_top = 28.0
 margin_right = 188.0
 margin_bottom = 52.0
+mouse_default_cursor_shape = 2
 min_value = 1.0
 max_value = 16384.0
 value = 32.0
@@ -315,10 +332,12 @@ margin_top = 56.0
 margin_right = 188.0
 margin_bottom = 76.0
 rect_min_size = Vector2( 64, 20 )
+mouse_default_cursor_shape = 2
 color = Color( 0, 0, 0, 0 )
 [connection signal="about_to_show" from="." to="." method="_on_PreferencesDialog_about_to_show"]
 [connection signal="popup_hide" from="." to="." method="_on_PreferencesDialog_popup_hide"]
 [connection signal="item_selected" from="HSplitContainer/Tree" to="." method="_on_Tree_item_selected"]
+[connection signal="pressed" from="HSplitContainer/ScrollContainer/VBoxContainer/General/SmoothZoom" to="." method="_on_SmoothZoom_pressed"]
 [connection signal="value_changed" from="HSplitContainer/ScrollContainer/VBoxContainer/Grid&Guides/GridOptions/GridWidthValue" to="." method="_on_GridWidthValue_value_changed"]
 [connection signal="value_changed" from="HSplitContainer/ScrollContainer/VBoxContainer/Grid&Guides/GridOptions/GridHeightValue" to="." method="_on_GridHeightValue_value_changed"]
 [connection signal="color_changed" from="HSplitContainer/ScrollContainer/VBoxContainer/Grid&Guides/GridOptions/GridColor" to="." method="_on_GridColor_color_changed"]

Scripts/CameraMovement.gd

@@ -1,5 +1,6 @@
 extends Camera2D
 
+var tween : Tween
 var zoom_min := Vector2(0.005, 0.005)
 var zoom_max := Vector2.ONE
 var viewport_container : ViewportContainer
@@ -7,6 +8,8 @@ var drag := false
 
 func _ready() -> void:
 	viewport_container = get_parent().get_parent()
+	tween = Tween.new()
+	add_child(tween)
 
 func _input(event : InputEvent) -> void:
 	var mouse_pos := viewport_container.get_local_mouse_position()
@@ -26,6 +29,17 @@ func _input(event : InputEvent) -> void:
 
 # Zoom Camera
 func zoom_camera(dir : int) -> void:
+	if Global.smooth_zoom:
+		var zoom_margin = zoom * dir / 5
+		if zoom + zoom_margin > zoom_min:
+			tween.interpolate_property(self, "zoom", zoom, zoom + zoom_margin, 0.05, Tween.TRANS_LINEAR, Tween.EASE_IN)
+			tween.start()
+
+		if zoom > zoom_max:
+			tween.stop_all()
+			zoom = zoom_max
+
+	else:
 		var zoom_margin = zoom * dir / 10
 		if zoom + zoom_margin > zoom_min:
 			zoom += zoom_margin

Scripts/Dialogs/PreferencesDialog.gd

@@ -2,6 +2,7 @@ extends AcceptDialog
 
 onready var tree : Tree = $HSplitContainer/Tree
 onready var right_side : VBoxContainer = $HSplitContainer/ScrollContainer/VBoxContainer
+onready var general = $HSplitContainer/ScrollContainer/VBoxContainer/General
 onready var languages = $HSplitContainer/ScrollContainer/VBoxContainer/Languages
 onready var themes = $HSplitContainer/ScrollContainer/VBoxContainer/Themes
 onready var grid_guides = $"HSplitContainer/ScrollContainer/VBoxContainer/Grid&Guides"
@@ -72,15 +73,17 @@ func _ready() -> void:
 
 func _on_PreferencesDialog_about_to_show() -> void:
 	var root := tree.create_item()
+	var general_button := tree.create_item(root)
 	var language_button := tree.create_item(root)
 	var theme_button := tree.create_item(root)
 	var grid_button := tree.create_item(root)
 	var image_button := tree.create_item(root)
 
-	language_button.set_text(0, "  " + tr("Language"))
+	general_button.set_text(0, "  " + tr("General"))
 	# We use metadata to avoid being affected by translations
+	general_button.set_metadata(0, "General")
+	language_button.set_text(0, "  " + tr("Language"))
 	language_button.set_metadata(0, "Language")
-	language_button.select(0)
 	theme_button.set_text(0, "  " + tr("Themes"))
 	theme_button.set_metadata(0, "Themes")
 	grid_button.set_text(0, "  " + tr("Guides & Grid"))
@@ -88,6 +91,8 @@ func _on_PreferencesDialog_about_to_show() -> void:
 	image_button.set_text(0, "  " + tr("Image"))
 	image_button.set_metadata(0, "Image")
 
+	general_button.select(0)
+
 
 func _on_PreferencesDialog_popup_hide() -> void:
 	tree.clear()
@@ -96,7 +101,9 @@ func _on_Tree_item_selected() -> void:
 	for child in right_side.get_children():
 		child.visible = false
 	var selected : String = tree.get_selected().get_metadata(0)
-	if "Language" in selected:
+	if "General" in selected:
+		general.visible = true
+	elif "Language" in selected:
 		languages.visible = true
 	elif "Themes" in selected:
 		themes.visible = true
@@ -105,6 +112,9 @@ func _on_Tree_item_selected() -> void:
 	elif "Image" in selected:
 		image.visible = true
 
+func _on_SmoothZoom_pressed() -> void:
+	Global.smooth_zoom = !Global.smooth_zoom
+
 func _on_Language_pressed(button : Button) -> void:
 	var index := 0
 	var i := -1
@@ -263,4 +273,3 @@ func _on_DefaultBackground_color_changed(color: Color) -> void:
 	Global.default_fill_color = color
 	Global.config_cache.set_value("preferences", "default_fill_color", color)
 	Global.config_cache.save("user://cache.ini")
-

Scripts/Global.gd

@@ -15,6 +15,9 @@ var has_focus := false
 var canvases := []
 # warning-ignore:unused_class_variable
 var hidden_canvases := []
+enum PRESSURE_SENSITIVITY {NONE, ALPHA, SIZE}
+var pressure_sensitivity_mode = PRESSURE_SENSITIVITY.NONE
+var smooth_zoom := true
 var left_cursor_tool_texture : ImageTexture
 var right_cursor_tool_texture : ImageTexture
 var transparent_background : ImageTexture