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https://github.com/godotengine/godot
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d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
146 lines
4.8 KiB
C++
146 lines
4.8 KiB
C++
/**************************************************************************/
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/* curve_editor_plugin.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef CURVE_EDITOR_PLUGIN_H
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#define CURVE_EDITOR_PLUGIN_H
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#include "editor/editor_inspector.h"
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#include "editor/editor_plugin.h"
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#include "editor/editor_resource_preview.h"
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#include "scene/resources/curve.h"
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// Edits a y(x) curve
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class CurveEditor : public Control {
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GDCLASS(CurveEditor, Control);
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public:
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CurveEditor();
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Size2 get_minimum_size() const override;
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void set_curve(Ref<Curve> curve);
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enum PresetID {
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PRESET_FLAT0 = 0,
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PRESET_FLAT1,
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PRESET_LINEAR,
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PRESET_EASE_IN,
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PRESET_EASE_OUT,
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PRESET_SMOOTHSTEP,
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PRESET_COUNT
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};
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enum ContextAction {
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CONTEXT_ADD_POINT = 0,
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CONTEXT_REMOVE_POINT,
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CONTEXT_LINEAR,
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CONTEXT_LEFT_LINEAR,
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CONTEXT_RIGHT_LINEAR
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};
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enum TangentIndex {
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TANGENT_NONE = -1,
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TANGENT_LEFT = 0,
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TANGENT_RIGHT = 1
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};
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protected:
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void _notification(int p_what);
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private:
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virtual void gui_input(const Ref<InputEvent> &p_event) override;
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void on_preset_item_selected(int preset_id);
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void _curve_changed();
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void on_context_menu_item_selected(int action_id);
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void open_context_menu(Vector2 pos);
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int get_point_at(Vector2 pos) const;
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TangentIndex get_tangent_at(Vector2 pos) const;
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void add_point(Vector2 pos);
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void remove_point(int index);
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void toggle_linear(TangentIndex tangent = TANGENT_NONE);
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void set_selected_point(int index);
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void set_hover_point_index(int index);
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void update_view_transform();
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Vector2 get_tangent_view_pos(int i, TangentIndex tangent) const;
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Vector2 get_view_pos(Vector2 world_pos) const;
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Vector2 get_world_pos(Vector2 view_pos) const;
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void _draw();
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private:
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Transform2D _world_to_view;
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Ref<Curve> _curve_ref;
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PopupMenu *_context_menu = nullptr;
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PopupMenu *_presets_menu = nullptr;
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Array _undo_data;
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bool _has_undo_data;
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Vector2 _context_click_pos;
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int _selected_point;
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int _hover_point;
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TangentIndex _selected_tangent;
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bool _dragging;
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// Constant
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float _hover_radius;
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float _tangents_length;
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};
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class EditorInspectorPluginCurve : public EditorInspectorPlugin {
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GDCLASS(EditorInspectorPluginCurve, EditorInspectorPlugin);
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public:
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virtual bool can_handle(Object *p_object) override;
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virtual void parse_begin(Object *p_object) override;
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};
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class CurveEditorPlugin : public EditorPlugin {
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GDCLASS(CurveEditorPlugin, EditorPlugin);
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public:
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CurveEditorPlugin();
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virtual String get_name() const override { return "Curve"; }
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};
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class CurvePreviewGenerator : public EditorResourcePreviewGenerator {
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GDCLASS(CurvePreviewGenerator, EditorResourcePreviewGenerator);
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public:
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virtual bool handles(const String &p_type) const override;
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virtual Ref<Texture2D> generate(const Ref<Resource> &p_from, const Size2 &p_size) const override;
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};
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#endif // CURVE_EDITOR_PLUGIN_H
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