mirror of
https://github.com/godotengine/godot
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200 lines
6.4 KiB
C++
200 lines
6.4 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_resource_preview.h"
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#include "editor/plugins/editor_plugin.h"
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#include "scene/resources/curve.h"
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class EditorSpinSlider;
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class MenuButton;
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class PopupMenu;
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class CurveEdit : public Control {
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GDCLASS(CurveEdit, Control);
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public:
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CurveEdit();
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void set_snap_enabled(bool p_enabled);
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void set_snap_count(int p_snap_count);
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void use_preset(int p_preset_id);
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void set_curve(Ref<Curve> p_curve);
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Ref<Curve> get_curve();
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Size2 get_minimum_size() const override;
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enum PresetID {
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PRESET_CONSTANT = 0,
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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 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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static void _bind_methods();
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private:
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virtual void gui_input(const Ref<InputEvent> &p_event) override;
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void _curve_changed();
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int get_point_at(Vector2 p_pos) const;
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TangentIndex get_tangent_at(Vector2 p_pos) const;
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float get_offset_without_collision(int p_current_index, float p_offset, bool p_prioritize_right = true);
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void add_point(Vector2 p_pos);
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void remove_point(int p_index);
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void set_point_position(int p_index, Vector2 p_pos);
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void set_point_tangents(int p_index, float p_left, float p_right);
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void set_point_left_tangent(int p_index, float p_tangent);
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void set_point_right_tangent(int p_index, float p_tangent);
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void toggle_linear(int p_index, TangentIndex p_tangent = TANGENT_NONE);
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void update_view_transform();
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void set_selected_index(int p_index);
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void set_selected_tangent_index(TangentIndex p_tangent);
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Vector2 get_tangent_view_pos(int p_index, TangentIndex p_tangent) const;
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Vector2 get_view_pos(Vector2 p_world_pos) const;
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Vector2 get_world_pos(Vector2 p_view_pos) const;
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void _redraw();
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private:
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const float ASPECT_RATIO = 6.f / 13.f;
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Transform2D _world_to_view;
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Ref<Curve> curve;
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PopupMenu *_presets_menu = nullptr;
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int selected_index = -1;
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int hovered_index = -1;
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TangentIndex selected_tangent_index = TANGENT_NONE;
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TangentIndex hovered_tangent_index = TANGENT_NONE;
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// Make sure to use the scaled values below.
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const int BASE_POINT_RADIUS = 4;
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const int BASE_HOVER_RADIUS = 10;
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const int BASE_TANGENT_RADIUS = 3;
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const int BASE_TANGENT_HOVER_RADIUS = 8;
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const int BASE_TANGENT_LENGTH = 36;
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int point_radius = BASE_POINT_RADIUS;
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int hover_radius = BASE_HOVER_RADIUS;
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int tangent_radius = BASE_TANGENT_RADIUS;
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int tangent_hover_radius = BASE_TANGENT_HOVER_RADIUS;
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int tangent_length = BASE_TANGENT_LENGTH;
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enum GrabMode {
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GRAB_NONE,
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GRAB_ADD,
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GRAB_MOVE
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};
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GrabMode grabbing = GRAB_NONE;
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Vector2 initial_grab_pos;
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int initial_grab_index;
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float initial_grab_left_tangent;
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float initial_grab_right_tangent;
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bool snap_enabled = false;
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int snap_count = 10;
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};
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// CurveEdit + toolbar
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class CurveEditor : public VBoxContainer {
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GDCLASS(CurveEditor, VBoxContainer);
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// Make sure to use the scaled values below.
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const int BASE_SPACING = 4;
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int spacing = BASE_SPACING;
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Button *snap_button = nullptr;
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EditorSpinSlider *snap_count_edit = nullptr;
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MenuButton *presets_button = nullptr;
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CurveEdit *curve_editor_rect = nullptr;
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void _set_snap_enabled(bool p_enabled);
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void _set_snap_count(int p_snap_count);
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void _on_preset_item_selected(int p_preset_id);
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protected:
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void _notification(int p_what);
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public:
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static const int DEFAULT_SNAP;
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void set_curve(const Ref<Curve> &p_curve);
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CurveEditor();
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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, Dictionary &p_metadata) const override;
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};
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#endif // CURVE_EDITOR_PLUGIN_H
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