initial commit, 4.5 stable

scene/resources/gradient_texture.h

@@ -0,0 +1,143 @@
+/**************************************************************************/
+/*  gradient_texture.h                                                    */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* 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.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "scene/resources/texture.h"
+
+class GradientTexture1D : public Texture2D {
+	GDCLASS(GradientTexture1D, Texture2D);
+
+private:
+	Ref<Gradient> gradient;
+	mutable bool update_pending = false;
+	mutable RID texture;
+	int width = 256;
+	bool use_hdr = false;
+
+	void _queue_update();
+	void _update() const;
+
+protected:
+	static void _bind_methods();
+
+public:
+	void set_gradient(Ref<Gradient> p_gradient);
+	Ref<Gradient> get_gradient() const;
+
+	void set_width(int p_width);
+	int get_width() const override;
+
+	void set_use_hdr(bool p_enabled);
+	bool is_using_hdr() const;
+
+	virtual RID get_rid() const override;
+	virtual int get_height() const override { return 1; }
+	virtual bool has_alpha() const override { return true; }
+
+	virtual Ref<Image> get_image() const override;
+	void update_now() const;
+
+	GradientTexture1D();
+	virtual ~GradientTexture1D();
+};
+
+class GradientTexture2D : public Texture2D {
+	GDCLASS(GradientTexture2D, Texture2D);
+
+public:
+	enum Fill {
+		FILL_LINEAR,
+		FILL_RADIAL,
+		FILL_SQUARE,
+	};
+	enum Repeat {
+		REPEAT_NONE,
+		REPEAT,
+		REPEAT_MIRROR,
+	};
+
+private:
+	Ref<Gradient> gradient;
+	mutable RID texture;
+
+	int width = 64;
+	int height = 64;
+
+	bool use_hdr = false;
+
+	Vector2 fill_from;
+	Vector2 fill_to = Vector2(1, 0);
+
+	Fill fill = FILL_LINEAR;
+	Repeat repeat = REPEAT_NONE;
+
+	float _get_gradient_offset_at(int x, int y) const;
+
+	mutable bool update_pending = false;
+	void _queue_update();
+	void _update() const;
+
+protected:
+	static void _bind_methods();
+
+public:
+	void set_gradient(Ref<Gradient> p_gradient);
+	Ref<Gradient> get_gradient() const;
+
+	void set_width(int p_width);
+	virtual int get_width() const override;
+	void set_height(int p_height);
+	virtual int get_height() const override;
+
+	void set_use_hdr(bool p_enabled);
+	bool is_using_hdr() const;
+
+	void set_fill(Fill p_fill);
+	Fill get_fill() const;
+	void set_fill_from(Vector2 p_fill_from);
+	Vector2 get_fill_from() const;
+	void set_fill_to(Vector2 p_fill_to);
+	Vector2 get_fill_to() const;
+
+	void set_repeat(Repeat p_repeat);
+	Repeat get_repeat() const;
+
+	virtual RID get_rid() const override;
+	virtual bool has_alpha() const override { return true; }
+	virtual Ref<Image> get_image() const override;
+	void update_now() const;
+
+	GradientTexture2D();
+	virtual ~GradientTexture2D();
+};
+
+VARIANT_ENUM_CAST(GradientTexture2D::Fill);
+VARIANT_ENUM_CAST(GradientTexture2D::Repeat);