first commit

addons/zylann.hterrain/tools/brush/settings_dialog/preview_painter.gd

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+@tool
+extends Node
+
+const HT_Painter = preload("./../painter.gd")
+const HT_Brush = preload("./../brush.gd")
+
+const HT_ColorShader = preload("../shaders/color.gdshader")
+
+var _painter : HT_Painter
+var _brush : HT_Brush
+
+
+func _init():
+	var p = HT_Painter.new()
+	# The name is just for debugging
+	p.set_name("Painter")
+	add_child(p)
+	_painter = p
+
+	_brush = HT_Brush.new()
+
+
+func set_image_texture(image: Image, texture: ImageTexture):
+	_painter.set_image(image, texture)
+
+
+func get_brush() -> HT_Brush:
+	return _brush
+
+
+# This may be called from an `_input` callback
+func paint_input(position: Vector2, pressure: float):
+	var p : HT_Painter = _painter
+	
+	if not _brush.configure_paint_input([p], position, pressure):
+		return
+	
+	p.set_brush_shader(HT_ColorShader)
+	p.set_brush_shader_param("u_color", Color(0,0,0,1))
+	#p.set_image(_image, _texture)
+	p.paint_input(position)