mirror of
https://github.com/godotengine/godot
synced 2024-09-05 11:48:29 +00:00
1111 lines
44 KiB
C++
1111 lines
44 KiB
C++
/**************************************************************************/
|
|
/* curve_editor_plugin.cpp */
|
|
/**************************************************************************/
|
|
/* 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. */
|
|
/**************************************************************************/
|
|
|
|
#include "curve_editor_plugin.h"
|
|
|
|
#include "canvas_item_editor_plugin.h"
|
|
#include "core/input/input.h"
|
|
#include "core/math/geometry_2d.h"
|
|
#include "core/os/keyboard.h"
|
|
#include "editor/editor_interface.h"
|
|
#include "editor/editor_node.h"
|
|
#include "editor/editor_settings.h"
|
|
#include "editor/editor_string_names.h"
|
|
#include "editor/editor_undo_redo_manager.h"
|
|
#include "editor/gui/editor_spin_slider.h"
|
|
#include "editor/themes/editor_scale.h"
|
|
#include "scene/gui/flow_container.h"
|
|
#include "scene/gui/menu_button.h"
|
|
#include "scene/gui/popup_menu.h"
|
|
#include "scene/gui/separator.h"
|
|
#include "scene/resources/image_texture.h"
|
|
|
|
CurveEdit::CurveEdit() {
|
|
set_focus_mode(FOCUS_ALL);
|
|
set_clip_contents(true);
|
|
}
|
|
|
|
void CurveEdit::_bind_methods() {
|
|
ClassDB::bind_method(D_METHOD("set_selected_index", "index"), &CurveEdit::set_selected_index);
|
|
}
|
|
|
|
void CurveEdit::set_curve(Ref<Curve> p_curve) {
|
|
if (p_curve == curve) {
|
|
return;
|
|
}
|
|
|
|
if (curve.is_valid()) {
|
|
curve->disconnect_changed(callable_mp(this, &CurveEdit::_curve_changed));
|
|
curve->disconnect(Curve::SIGNAL_RANGE_CHANGED, callable_mp(this, &CurveEdit::_curve_changed));
|
|
}
|
|
|
|
curve = p_curve;
|
|
|
|
if (curve.is_valid()) {
|
|
curve->connect_changed(callable_mp(this, &CurveEdit::_curve_changed));
|
|
curve->connect(Curve::SIGNAL_RANGE_CHANGED, callable_mp(this, &CurveEdit::_curve_changed));
|
|
}
|
|
|
|
// Note: if you edit a curve, then set another, and try to undo,
|
|
// it will normally apply on the previous curve, but you won't see it.
|
|
}
|
|
|
|
Ref<Curve> CurveEdit::get_curve() {
|
|
return curve;
|
|
}
|
|
|
|
void CurveEdit::set_snap_enabled(bool p_enabled) {
|
|
snap_enabled = p_enabled;
|
|
queue_redraw();
|
|
if (curve.is_valid()) {
|
|
if (snap_enabled) {
|
|
curve->set_meta(SNAME("_snap_enabled"), true);
|
|
} else {
|
|
curve->remove_meta(SNAME("_snap_enabled"));
|
|
}
|
|
}
|
|
}
|
|
|
|
void CurveEdit::set_snap_count(int p_snap_count) {
|
|
snap_count = p_snap_count;
|
|
queue_redraw();
|
|
if (curve.is_valid()) {
|
|
if (snap_count != CurveEditor::DEFAULT_SNAP) {
|
|
curve->set_meta(SNAME("_snap_count"), snap_count);
|
|
} else {
|
|
curve->remove_meta(SNAME("_snap_count"));
|
|
}
|
|
}
|
|
}
|
|
|
|
Size2 CurveEdit::get_minimum_size() const {
|
|
return Vector2(64, MAX(135, get_size().x * ASPECT_RATIO)) * EDSCALE;
|
|
}
|
|
|
|
void CurveEdit::_notification(int p_what) {
|
|
switch (p_what) {
|
|
case NOTIFICATION_MOUSE_EXIT: {
|
|
if (hovered_index != -1 || hovered_tangent_index != TANGENT_NONE) {
|
|
hovered_index = -1;
|
|
hovered_tangent_index = TANGENT_NONE;
|
|
queue_redraw();
|
|
}
|
|
} break;
|
|
case EditorSettings::NOTIFICATION_EDITOR_SETTINGS_CHANGED: {
|
|
if (!EditorSettings::get_singleton()->check_changed_settings_in_group("interface/touchscreen")) {
|
|
break;
|
|
}
|
|
[[fallthrough]];
|
|
}
|
|
case NOTIFICATION_THEME_CHANGED: {
|
|
float gizmo_scale = EDITOR_GET("interface/touchscreen/scale_gizmo_handles");
|
|
point_radius = Math::round(BASE_POINT_RADIUS * get_theme_default_base_scale() * gizmo_scale);
|
|
hover_radius = Math::round(BASE_HOVER_RADIUS * get_theme_default_base_scale() * gizmo_scale);
|
|
tangent_radius = Math::round(BASE_TANGENT_RADIUS * get_theme_default_base_scale() * gizmo_scale);
|
|
tangent_hover_radius = Math::round(BASE_TANGENT_HOVER_RADIUS * get_theme_default_base_scale() * gizmo_scale);
|
|
tangent_length = Math::round(BASE_TANGENT_LENGTH * get_theme_default_base_scale());
|
|
} break;
|
|
case NOTIFICATION_DRAW: {
|
|
_redraw();
|
|
} break;
|
|
case NOTIFICATION_VISIBILITY_CHANGED: {
|
|
if (!is_visible()) {
|
|
grabbing = GRAB_NONE;
|
|
}
|
|
} break;
|
|
}
|
|
}
|
|
|
|
void CurveEdit::gui_input(const Ref<InputEvent> &p_event) {
|
|
ERR_FAIL_COND(p_event.is_null());
|
|
if (curve.is_null()) {
|
|
return;
|
|
}
|
|
|
|
Ref<InputEventKey> k = p_event;
|
|
if (k.is_valid()) {
|
|
// Deleting points or making tangents linear.
|
|
if (k->is_pressed() && k->get_keycode() == Key::KEY_DELETE) {
|
|
if (selected_tangent_index != TANGENT_NONE) {
|
|
toggle_linear(selected_index, selected_tangent_index);
|
|
} else if (selected_index != -1) {
|
|
if (grabbing == GRAB_ADD) {
|
|
curve->remove_point(selected_index); // Point is temporary, so remove directly from curve.
|
|
set_selected_index(-1);
|
|
} else {
|
|
remove_point(selected_index);
|
|
}
|
|
grabbing = GRAB_NONE;
|
|
hovered_index = -1;
|
|
hovered_tangent_index = TANGENT_NONE;
|
|
}
|
|
accept_event();
|
|
}
|
|
|
|
if (k->get_keycode() == Key::SHIFT || k->get_keycode() == Key::ALT) {
|
|
queue_redraw(); // Redraw to show the axes or constraints.
|
|
}
|
|
}
|
|
|
|
Ref<InputEventMouseButton> mb = p_event;
|
|
if (mb.is_valid() && mb->is_pressed()) {
|
|
Vector2 mpos = mb->get_position();
|
|
|
|
if (mb->get_button_index() == MouseButton::RIGHT || mb->get_button_index() == MouseButton::MIDDLE) {
|
|
if (mb->get_button_index() == MouseButton::RIGHT && grabbing == GRAB_MOVE) {
|
|
// Move a point to its old position.
|
|
curve->set_point_value(selected_index, initial_grab_pos.y);
|
|
curve->set_point_offset(selected_index, initial_grab_pos.x);
|
|
set_selected_index(initial_grab_index);
|
|
hovered_index = get_point_at(mpos);
|
|
grabbing = GRAB_NONE;
|
|
} else {
|
|
// Remove a point or make a tangent linear.
|
|
selected_tangent_index = get_tangent_at(mpos);
|
|
if (selected_tangent_index != TANGENT_NONE) {
|
|
toggle_linear(selected_index, selected_tangent_index);
|
|
} else {
|
|
int point_to_remove = get_point_at(mpos);
|
|
if (point_to_remove == -1) {
|
|
set_selected_index(-1); // Nothing on the place of the click, just deselect the point.
|
|
} else {
|
|
if (grabbing == GRAB_ADD) {
|
|
curve->remove_point(point_to_remove); // Point is temporary, so remove directly from curve.
|
|
set_selected_index(-1);
|
|
} else {
|
|
remove_point(point_to_remove);
|
|
}
|
|
hovered_index = get_point_at(mpos);
|
|
grabbing = GRAB_NONE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Selecting or creating points.
|
|
if (mb->get_button_index() == MouseButton::LEFT) {
|
|
if (grabbing == GRAB_NONE) {
|
|
selected_tangent_index = get_tangent_at(mpos);
|
|
if (selected_tangent_index == TANGENT_NONE) {
|
|
set_selected_index(get_point_at(mpos));
|
|
}
|
|
queue_redraw();
|
|
}
|
|
|
|
if (selected_index != -1) {
|
|
// If an existing point/tangent was grabbed, remember a few things about it.
|
|
grabbing = GRAB_MOVE;
|
|
initial_grab_pos = curve->get_point_position(selected_index);
|
|
initial_grab_index = selected_index;
|
|
if (selected_index > 0) {
|
|
initial_grab_left_tangent = curve->get_point_left_tangent(selected_index);
|
|
}
|
|
if (selected_index < curve->get_point_count() - 1) {
|
|
initial_grab_right_tangent = curve->get_point_right_tangent(selected_index);
|
|
}
|
|
} else if (grabbing == GRAB_NONE) {
|
|
// Adding a new point. Insert a temporary point for the user to adjust, so it's not in the undo/redo.
|
|
Vector2 new_pos = get_world_pos(mpos).clamp(Vector2(0.0, curve->get_min_value()), Vector2(1.0, curve->get_max_value()));
|
|
if (snap_enabled || mb->is_command_or_control_pressed()) {
|
|
new_pos.x = Math::snapped(new_pos.x, 1.0 / snap_count);
|
|
new_pos.y = Math::snapped(new_pos.y - curve->get_min_value(), curve->get_range() / snap_count) + curve->get_min_value();
|
|
}
|
|
|
|
new_pos.x = get_offset_without_collision(selected_index, new_pos.x, mpos.x >= get_view_pos(new_pos).x);
|
|
|
|
// Add a temporary point for the user to adjust before adding it permanently.
|
|
int new_idx = curve->add_point_no_update(new_pos);
|
|
set_selected_index(new_idx);
|
|
grabbing = GRAB_ADD;
|
|
initial_grab_pos = new_pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mb.is_valid() && mb->get_button_index() == MouseButton::LEFT && !mb->is_pressed()) {
|
|
if (selected_tangent_index != TANGENT_NONE) {
|
|
// Finish moving a tangent control.
|
|
if (selected_index == 0) {
|
|
set_point_right_tangent(selected_index, curve->get_point_right_tangent(selected_index));
|
|
} else if (selected_index == curve->get_point_count() - 1) {
|
|
set_point_left_tangent(selected_index, curve->get_point_left_tangent(selected_index));
|
|
} else {
|
|
set_point_tangents(selected_index, curve->get_point_left_tangent(selected_index), curve->get_point_right_tangent(selected_index));
|
|
}
|
|
grabbing = GRAB_NONE;
|
|
} else if (grabbing == GRAB_MOVE) {
|
|
// Finish moving a point.
|
|
set_point_position(selected_index, curve->get_point_position(selected_index));
|
|
grabbing = GRAB_NONE;
|
|
} else if (grabbing == GRAB_ADD) {
|
|
// Finish inserting a new point. Remove the temporary point and insert a permanent one in its place.
|
|
Vector2 new_pos = curve->get_point_position(selected_index);
|
|
curve->remove_point(selected_index);
|
|
add_point(new_pos);
|
|
grabbing = GRAB_NONE;
|
|
}
|
|
queue_redraw();
|
|
}
|
|
|
|
Ref<InputEventMouseMotion> mm = p_event;
|
|
if (mm.is_valid()) {
|
|
Vector2 mpos = mm->get_position();
|
|
|
|
if (grabbing != GRAB_NONE && curve.is_valid()) {
|
|
if (selected_index != -1) {
|
|
if (selected_tangent_index == TANGENT_NONE) {
|
|
// Drag point.
|
|
Vector2 new_pos = get_world_pos(mpos).clamp(Vector2(0.0, curve->get_min_value()), Vector2(1.0, curve->get_max_value()));
|
|
|
|
if (snap_enabled || mm->is_command_or_control_pressed()) {
|
|
new_pos.x = Math::snapped(new_pos.x, 1.0 / snap_count);
|
|
new_pos.y = Math::snapped(new_pos.y - curve->get_min_value(), curve->get_range() / snap_count) + curve->get_min_value();
|
|
}
|
|
|
|
// Allow to snap to axes with Shift.
|
|
if (mm->is_shift_pressed()) {
|
|
Vector2 initial_mpos = get_view_pos(initial_grab_pos);
|
|
if (Math::abs(mpos.x - initial_mpos.x) > Math::abs(mpos.y - initial_mpos.y)) {
|
|
new_pos.y = initial_grab_pos.y;
|
|
} else {
|
|
new_pos.x = initial_grab_pos.x;
|
|
}
|
|
}
|
|
|
|
// Allow to constraint the point between the adjacent two with Alt.
|
|
if (mm->is_alt_pressed()) {
|
|
float prev_point_offset = (selected_index > 0) ? (curve->get_point_position(selected_index - 1).x + 0.00001) : 0.0;
|
|
float next_point_offset = (selected_index < curve->get_point_count() - 1) ? (curve->get_point_position(selected_index + 1).x - 0.00001) : 1.0;
|
|
new_pos.x = CLAMP(new_pos.x, prev_point_offset, next_point_offset);
|
|
}
|
|
|
|
new_pos.x = get_offset_without_collision(selected_index, new_pos.x, mpos.x >= get_view_pos(new_pos).x);
|
|
|
|
// The index may change if the point is dragged across another one.
|
|
int i = curve->set_point_offset(selected_index, new_pos.x);
|
|
hovered_index = i;
|
|
set_selected_index(i);
|
|
|
|
new_pos.y = CLAMP(new_pos.y, curve->get_min_value(), curve->get_max_value());
|
|
curve->set_point_value(selected_index, new_pos.y);
|
|
|
|
} else {
|
|
// Drag tangent.
|
|
|
|
const Vector2 new_pos = curve->get_point_position(selected_index);
|
|
const Vector2 control_pos = get_world_pos(mpos);
|
|
|
|
Vector2 dir = (control_pos - new_pos).normalized();
|
|
real_t tangent = dir.y / (dir.x > 0 ? MAX(dir.x, 0.00001) : MIN(dir.x, -0.00001));
|
|
|
|
// Must keep track of the hovered index as the cursor might move outside of the editor while dragging.
|
|
hovered_tangent_index = selected_tangent_index;
|
|
|
|
// Adjust the tangents.
|
|
if (selected_tangent_index == TANGENT_LEFT) {
|
|
curve->set_point_left_tangent(selected_index, tangent);
|
|
|
|
// Align the other tangent if it isn't linear and Shift is not pressed.
|
|
// If Shift is pressed at any point, restore the initial angle of the other tangent.
|
|
if (selected_index != (curve->get_point_count() - 1) && curve->get_point_right_mode(selected_index) != Curve::TANGENT_LINEAR) {
|
|
curve->set_point_right_tangent(selected_index, mm->is_shift_pressed() ? initial_grab_right_tangent : tangent);
|
|
}
|
|
|
|
} else {
|
|
curve->set_point_right_tangent(selected_index, tangent);
|
|
|
|
if (selected_index != 0 && curve->get_point_left_mode(selected_index) != Curve::TANGENT_LINEAR) {
|
|
curve->set_point_left_tangent(selected_index, mm->is_shift_pressed() ? initial_grab_left_tangent : tangent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// Grab mode is GRAB_NONE, so do hovering logic.
|
|
hovered_index = get_point_at(mpos);
|
|
hovered_tangent_index = get_tangent_at(mpos);
|
|
queue_redraw();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CurveEdit::use_preset(int p_preset_id) {
|
|
ERR_FAIL_COND(p_preset_id < 0 || p_preset_id >= PRESET_COUNT);
|
|
ERR_FAIL_COND(curve.is_null());
|
|
|
|
Array previous_data = curve->get_data();
|
|
curve->clear_points();
|
|
|
|
float min_value = curve->get_min_value();
|
|
float max_value = curve->get_max_value();
|
|
|
|
switch (p_preset_id) {
|
|
case PRESET_CONSTANT:
|
|
curve->add_point(Vector2(0, (min_value + max_value) / 2.0));
|
|
curve->add_point(Vector2(1, (min_value + max_value) / 2.0));
|
|
curve->set_point_right_mode(0, Curve::TANGENT_LINEAR);
|
|
curve->set_point_left_mode(1, Curve::TANGENT_LINEAR);
|
|
break;
|
|
|
|
case PRESET_LINEAR:
|
|
curve->add_point(Vector2(0, min_value));
|
|
curve->add_point(Vector2(1, max_value));
|
|
curve->set_point_right_mode(0, Curve::TANGENT_LINEAR);
|
|
curve->set_point_left_mode(1, Curve::TANGENT_LINEAR);
|
|
break;
|
|
|
|
case PRESET_EASE_IN:
|
|
curve->add_point(Vector2(0, min_value));
|
|
curve->add_point(Vector2(1, max_value), curve->get_range() * 1.4, 0);
|
|
break;
|
|
|
|
case PRESET_EASE_OUT:
|
|
curve->add_point(Vector2(0, min_value), 0, curve->get_range() * 1.4);
|
|
curve->add_point(Vector2(1, max_value));
|
|
break;
|
|
|
|
case PRESET_SMOOTHSTEP:
|
|
curve->add_point(Vector2(0, min_value));
|
|
curve->add_point(Vector2(1, max_value));
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Load Curve Preset"));
|
|
undo_redo->add_do_method(*curve, "_set_data", curve->get_data());
|
|
undo_redo->add_do_method(this, "set_selected_index", -1);
|
|
undo_redo->add_undo_method(*curve, "_set_data", previous_data);
|
|
undo_redo->add_undo_method(this, "set_selected_index", selected_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::_curve_changed() {
|
|
queue_redraw();
|
|
// Point count can change in case of undo.
|
|
if (selected_index >= curve->get_point_count()) {
|
|
set_selected_index(-1);
|
|
}
|
|
}
|
|
|
|
int CurveEdit::get_point_at(Vector2 p_pos) const {
|
|
if (curve.is_null()) {
|
|
return -1;
|
|
}
|
|
|
|
// Use a square-shaped hover region. If hovering multiple points, pick the closer one.
|
|
const Rect2 hover_rect = Rect2(p_pos, Vector2(0, 0)).grow(hover_radius);
|
|
int closest_idx = -1;
|
|
float closest_dist_squared = hover_radius * hover_radius * 2;
|
|
|
|
for (int i = 0; i < curve->get_point_count(); ++i) {
|
|
Vector2 p = get_view_pos(curve->get_point_position(i));
|
|
if (hover_rect.has_point(p) && p.distance_squared_to(p_pos) < closest_dist_squared) {
|
|
closest_dist_squared = p.distance_squared_to(p_pos);
|
|
closest_idx = i;
|
|
}
|
|
}
|
|
|
|
return closest_idx;
|
|
}
|
|
|
|
CurveEdit::TangentIndex CurveEdit::get_tangent_at(Vector2 p_pos) const {
|
|
if (curve.is_null() || selected_index < 0) {
|
|
return TANGENT_NONE;
|
|
}
|
|
|
|
const Rect2 hover_rect = Rect2(p_pos, Vector2(0, 0)).grow(tangent_hover_radius);
|
|
|
|
if (selected_index != 0) {
|
|
Vector2 control_pos = get_tangent_view_pos(selected_index, TANGENT_LEFT);
|
|
if (hover_rect.has_point(control_pos)) {
|
|
return TANGENT_LEFT;
|
|
}
|
|
}
|
|
|
|
if (selected_index != curve->get_point_count() - 1) {
|
|
Vector2 control_pos = get_tangent_view_pos(selected_index, TANGENT_RIGHT);
|
|
if (hover_rect.has_point(control_pos)) {
|
|
return TANGENT_RIGHT;
|
|
}
|
|
}
|
|
|
|
return TANGENT_NONE;
|
|
}
|
|
|
|
// FIXME: This function should be bounded better.
|
|
float CurveEdit::get_offset_without_collision(int p_current_index, float p_offset, bool p_prioritize_right) {
|
|
float safe_offset = p_offset;
|
|
bool prioritizing_right = p_prioritize_right;
|
|
|
|
for (int i = 0; i < curve->get_point_count(); i++) {
|
|
if (i == p_current_index) {
|
|
continue;
|
|
}
|
|
|
|
if (curve->get_point_position(i).x > safe_offset) {
|
|
break;
|
|
}
|
|
|
|
if (curve->get_point_position(i).x == safe_offset) {
|
|
if (prioritizing_right) {
|
|
safe_offset += 0.00001;
|
|
if (safe_offset > 1.0) {
|
|
safe_offset = 1.0;
|
|
prioritizing_right = false;
|
|
}
|
|
} else {
|
|
safe_offset -= 0.00001;
|
|
if (safe_offset < 0.0) {
|
|
safe_offset = 0.0;
|
|
prioritizing_right = true;
|
|
}
|
|
}
|
|
i = -1;
|
|
}
|
|
}
|
|
|
|
return safe_offset;
|
|
}
|
|
|
|
void CurveEdit::add_point(Vector2 p_pos) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
|
|
// Add a point to get its index, then remove it immediately. Trick to feed the UndoRedo.
|
|
int new_idx = curve->add_point(p_pos);
|
|
curve->remove_point(new_idx);
|
|
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Add Curve Point"));
|
|
undo_redo->add_do_method(*curve, "add_point", p_pos);
|
|
undo_redo->add_do_method(this, "set_selected_index", new_idx);
|
|
undo_redo->add_undo_method(*curve, "remove_point", new_idx);
|
|
undo_redo->add_undo_method(this, "set_selected_index", -1);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::remove_point(int p_index) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
Curve::Point p = curve->get_point(p_index);
|
|
Vector2 old_pos = (grabbing == GRAB_MOVE) ? initial_grab_pos : p.position;
|
|
|
|
int new_selected_index = selected_index;
|
|
// Reselect the old selected point if it's not the deleted one.
|
|
if (new_selected_index > p_index) {
|
|
new_selected_index -= 1;
|
|
} else if (new_selected_index == p_index) {
|
|
new_selected_index = -1;
|
|
}
|
|
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Remove Curve Point"));
|
|
undo_redo->add_do_method(*curve, "remove_point", p_index);
|
|
undo_redo->add_do_method(this, "set_selected_index", new_selected_index);
|
|
undo_redo->add_undo_method(*curve, "add_point", old_pos, p.left_tangent, p.right_tangent, p.left_mode, p.right_mode);
|
|
undo_redo->add_undo_method(this, "set_selected_index", selected_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::set_point_position(int p_index, Vector2 p_pos) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
if (initial_grab_pos == p_pos) {
|
|
return;
|
|
}
|
|
|
|
// Pretend the point started from its old place.
|
|
curve->set_point_value(p_index, initial_grab_pos.y);
|
|
curve->set_point_offset(p_index, initial_grab_pos.x);
|
|
// Note: Changing the offset may modify the order.
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Modify Curve Point"));
|
|
undo_redo->add_do_method(*curve, "set_point_value", initial_grab_index, p_pos.y);
|
|
undo_redo->add_do_method(*curve, "set_point_offset", initial_grab_index, p_pos.x);
|
|
undo_redo->add_do_method(this, "set_selected_index", p_index);
|
|
undo_redo->add_undo_method(*curve, "set_point_value", p_index, initial_grab_pos.y);
|
|
undo_redo->add_undo_method(*curve, "set_point_offset", p_index, initial_grab_pos.x);
|
|
undo_redo->add_undo_method(this, "set_selected_index", initial_grab_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::set_point_tangents(int p_index, float p_left, float p_right) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
if (initial_grab_left_tangent == p_left) {
|
|
set_point_right_tangent(p_index, p_right);
|
|
return;
|
|
} else if (initial_grab_right_tangent == p_right) {
|
|
set_point_left_tangent(p_index, p_left);
|
|
return;
|
|
}
|
|
|
|
curve->set_point_left_tangent(p_index, initial_grab_left_tangent);
|
|
curve->set_point_right_tangent(p_index, initial_grab_right_tangent);
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Modify Curve Point's Tangents"));
|
|
undo_redo->add_do_method(*curve, "set_point_left_tangent", p_index, p_left);
|
|
undo_redo->add_do_method(*curve, "set_point_right_tangent", p_index, p_right);
|
|
undo_redo->add_do_method(this, "set_selected_index", p_index);
|
|
undo_redo->add_undo_method(*curve, "set_point_left_tangent", p_index, initial_grab_left_tangent);
|
|
undo_redo->add_undo_method(*curve, "set_point_right_tangent", p_index, initial_grab_right_tangent);
|
|
undo_redo->add_undo_method(this, "set_selected_index", p_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::set_point_left_tangent(int p_index, float p_tangent) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
if (initial_grab_left_tangent == p_tangent) {
|
|
return;
|
|
}
|
|
|
|
curve->set_point_left_tangent(p_index, initial_grab_left_tangent);
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Modify Curve Point's Left Tangent"));
|
|
undo_redo->add_do_method(*curve, "set_point_left_tangent", p_index, p_tangent);
|
|
undo_redo->add_do_method(this, "set_selected_index", p_index);
|
|
undo_redo->add_undo_method(*curve, "set_point_left_tangent", p_index, initial_grab_left_tangent);
|
|
undo_redo->add_undo_method(this, "set_selected_index", p_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::set_point_right_tangent(int p_index, float p_tangent) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
if (initial_grab_right_tangent == p_tangent) {
|
|
return;
|
|
}
|
|
|
|
curve->set_point_right_tangent(p_index, initial_grab_right_tangent);
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Modify Curve Point's Right Tangent"));
|
|
undo_redo->add_do_method(*curve, "set_point_right_tangent", p_index, p_tangent);
|
|
undo_redo->add_do_method(this, "set_selected_index", p_index);
|
|
undo_redo->add_undo_method(*curve, "set_point_right_tangent", p_index, initial_grab_right_tangent);
|
|
undo_redo->add_undo_method(this, "set_selected_index", p_index);
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::toggle_linear(int p_index, TangentIndex p_tangent) {
|
|
ERR_FAIL_COND(curve.is_null());
|
|
ERR_FAIL_INDEX_MSG(p_index, curve->get_point_count(), "Curve point is out of bounds.");
|
|
|
|
if (p_tangent == TANGENT_NONE) {
|
|
return;
|
|
}
|
|
|
|
EditorUndoRedoManager *undo_redo = EditorUndoRedoManager::get_singleton();
|
|
undo_redo->create_action(TTR("Toggle Linear Curve Point's Tangent"));
|
|
|
|
Curve::TangentMode prev_mode = (p_tangent == TANGENT_LEFT) ? curve->get_point_left_mode(p_index) : curve->get_point_right_mode(p_index);
|
|
Curve::TangentMode mode = (prev_mode == Curve::TANGENT_LINEAR) ? Curve::TANGENT_FREE : Curve::TANGENT_LINEAR;
|
|
float prev_angle = (p_tangent == TANGENT_LEFT) ? curve->get_point_left_tangent(p_index) : curve->get_point_right_tangent(p_index);
|
|
|
|
// Add different methods in the UndoRedo based on the tangent passed.
|
|
if (p_tangent == TANGENT_LEFT) {
|
|
undo_redo->add_do_method(*curve, "set_point_left_mode", p_index, mode);
|
|
undo_redo->add_undo_method(*curve, "set_point_left_mode", p_index, prev_mode);
|
|
undo_redo->add_undo_method(*curve, "set_point_left_tangent", p_index, prev_angle);
|
|
} else {
|
|
undo_redo->add_do_method(*curve, "set_point_right_mode", p_index, mode);
|
|
undo_redo->add_undo_method(*curve, "set_point_right_mode", p_index, prev_mode);
|
|
undo_redo->add_undo_method(*curve, "set_point_right_tangent", p_index, prev_angle);
|
|
}
|
|
|
|
undo_redo->commit_action();
|
|
}
|
|
|
|
void CurveEdit::set_selected_index(int p_index) {
|
|
if (p_index != selected_index) {
|
|
selected_index = p_index;
|
|
queue_redraw();
|
|
}
|
|
}
|
|
|
|
void CurveEdit::update_view_transform() {
|
|
Ref<Font> font = get_theme_font(SNAME("font"), SNAME("Label"));
|
|
int font_size = get_theme_font_size(SNAME("font_size"), SNAME("Label"));
|
|
|
|
const real_t margin = font->get_height(font_size) + 2 * EDSCALE;
|
|
|
|
float min_y = curve.is_valid() ? curve->get_min_value() : 0.0;
|
|
float max_y = curve.is_valid() ? curve->get_max_value() : 1.0;
|
|
|
|
const Rect2 world_rect = Rect2(Curve::MIN_X, min_y, Curve::MAX_X, max_y - min_y);
|
|
const Size2 view_margin(margin, margin);
|
|
const Size2 view_size = get_size() - view_margin * 2;
|
|
const Vector2 scale = view_size / world_rect.size;
|
|
|
|
Transform2D world_trans;
|
|
world_trans.translate_local(-world_rect.position - Vector2(0, world_rect.size.y));
|
|
world_trans.scale(Vector2(scale.x, -scale.y));
|
|
|
|
Transform2D view_trans;
|
|
view_trans.translate_local(view_margin);
|
|
|
|
_world_to_view = view_trans * world_trans;
|
|
}
|
|
|
|
Vector2 CurveEdit::get_tangent_view_pos(int p_index, TangentIndex p_tangent) const {
|
|
Vector2 dir;
|
|
if (p_tangent == TANGENT_LEFT) {
|
|
dir = -Vector2(1, curve->get_point_left_tangent(p_index));
|
|
} else {
|
|
dir = Vector2(1, curve->get_point_right_tangent(p_index));
|
|
}
|
|
|
|
Vector2 point_pos = curve->get_point_position(p_index);
|
|
Vector2 point_view_pos = get_view_pos(point_pos);
|
|
Vector2 control_view_pos = get_view_pos(point_pos + dir);
|
|
|
|
Vector2 distance_from_point = tangent_length * (control_view_pos - point_view_pos).normalized();
|
|
Vector2 tangent_view_pos = point_view_pos + distance_from_point;
|
|
|
|
// Since the tangent is long, it might slip outside of the area of the editor for points close to the domain/range boundaries.
|
|
// The code below shrinks the tangent control by up to 50% so it always stays inside the editor for points within the bounds.
|
|
float fraction_inside = 1.0;
|
|
if (distance_from_point.x != 0.0) {
|
|
fraction_inside = MIN(fraction_inside, ((distance_from_point.x > 0 ? get_rect().size.x : 0) - point_view_pos.x) / distance_from_point.x);
|
|
}
|
|
if (distance_from_point.y != 0.0) {
|
|
fraction_inside = MIN(fraction_inside, ((distance_from_point.y > 0 ? get_rect().size.y : 0) - point_view_pos.y) / distance_from_point.y);
|
|
}
|
|
|
|
if (fraction_inside < 1.0 && fraction_inside > 0.5) {
|
|
tangent_view_pos = point_view_pos + distance_from_point * fraction_inside;
|
|
}
|
|
|
|
return tangent_view_pos;
|
|
}
|
|
|
|
Vector2 CurveEdit::get_view_pos(Vector2 p_world_pos) const {
|
|
return _world_to_view.xform(p_world_pos);
|
|
}
|
|
|
|
Vector2 CurveEdit::get_world_pos(Vector2 p_view_pos) const {
|
|
return _world_to_view.affine_inverse().xform(p_view_pos);
|
|
}
|
|
|
|
// Uses non-baked points, but takes advantage of ordered iteration to be faster.
|
|
template <typename T>
|
|
static void plot_curve_accurate(const Curve &curve, float step, Vector2 scaling, T plot_func) {
|
|
if (curve.get_point_count() <= 1) {
|
|
// Not enough points to make a curve, so it's just a straight line.
|
|
// The added tiny vectors make the drawn line stay exactly within the bounds in practice.
|
|
float y = curve.sample(0);
|
|
plot_func(Vector2(0, y) * scaling + Vector2(0.5, 0), Vector2(1.f, y) * scaling - Vector2(1.5, 0), true);
|
|
|
|
} else {
|
|
Vector2 first_point = curve.get_point_position(0);
|
|
Vector2 last_point = curve.get_point_position(curve.get_point_count() - 1);
|
|
|
|
// Edge lines
|
|
plot_func(Vector2(0, first_point.y) * scaling + Vector2(0.5, 0), first_point * scaling, false);
|
|
plot_func(Vector2(Curve::MAX_X, last_point.y) * scaling - Vector2(1.5, 0), last_point * scaling, false);
|
|
|
|
// Draw section by section, so that we get maximum precision near points.
|
|
// It's an accurate representation, but slower than using the baked one.
|
|
for (int i = 1; i < curve.get_point_count(); ++i) {
|
|
Vector2 a = curve.get_point_position(i - 1);
|
|
Vector2 b = curve.get_point_position(i);
|
|
|
|
Vector2 pos = a;
|
|
Vector2 prev_pos = a;
|
|
|
|
float scaled_step = step / scaling.x;
|
|
float samples = (b.x - a.x) / scaled_step;
|
|
|
|
for (int j = 1; j < samples; j++) {
|
|
float x = j * scaled_step;
|
|
pos.x = a.x + x;
|
|
pos.y = curve.sample_local_nocheck(i - 1, x);
|
|
plot_func(prev_pos * scaling, pos * scaling, true);
|
|
prev_pos = pos;
|
|
}
|
|
|
|
plot_func(prev_pos * scaling, b * scaling, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
struct CanvasItemPlotCurve {
|
|
CanvasItem &ci;
|
|
Color color1;
|
|
Color color2;
|
|
|
|
CanvasItemPlotCurve(CanvasItem &p_ci, Color p_color1, Color p_color2) :
|
|
ci(p_ci),
|
|
color1(p_color1),
|
|
color2(p_color2) {}
|
|
|
|
void operator()(Vector2 pos0, Vector2 pos1, bool in_definition) {
|
|
ci.draw_line(pos0, pos1, in_definition ? color1 : color2, 0.5, true);
|
|
}
|
|
};
|
|
|
|
void CurveEdit::_redraw() {
|
|
if (curve.is_null()) {
|
|
return;
|
|
}
|
|
|
|
update_view_transform();
|
|
|
|
// Draw background.
|
|
|
|
Vector2 view_size = get_rect().size;
|
|
draw_style_box(get_theme_stylebox(SceneStringName(panel), SNAME("Tree")), Rect2(Point2(), view_size));
|
|
|
|
// Draw snapping grid, then primary grid.
|
|
draw_set_transform_matrix(_world_to_view);
|
|
|
|
Vector2 min_edge = get_world_pos(Vector2(0, view_size.y));
|
|
Vector2 max_edge = get_world_pos(Vector2(view_size.x, 0));
|
|
|
|
const Color grid_color_primary = get_theme_color(SNAME("mono_color"), EditorStringName(Editor)) * Color(1, 1, 1, 0.25);
|
|
const Color grid_color = get_theme_color(SNAME("mono_color"), EditorStringName(Editor)) * Color(1, 1, 1, 0.1);
|
|
|
|
const Vector2i grid_steps = Vector2i(4, 2);
|
|
const Vector2 step_size = Vector2(1, curve->get_range()) / grid_steps;
|
|
|
|
draw_line(Vector2(min_edge.x, curve->get_min_value()), Vector2(max_edge.x, curve->get_min_value()), grid_color_primary);
|
|
draw_line(Vector2(max_edge.x, curve->get_max_value()), Vector2(min_edge.x, curve->get_max_value()), grid_color_primary);
|
|
draw_line(Vector2(0, min_edge.y), Vector2(0, max_edge.y), grid_color_primary);
|
|
draw_line(Vector2(1, max_edge.y), Vector2(1, min_edge.y), grid_color_primary);
|
|
|
|
for (int i = 1; i < grid_steps.x; i++) {
|
|
real_t x = i * step_size.x;
|
|
draw_line(Vector2(x, min_edge.y), Vector2(x, max_edge.y), grid_color);
|
|
}
|
|
|
|
for (int i = 1; i < grid_steps.y; i++) {
|
|
real_t y = curve->get_min_value() + i * step_size.y;
|
|
draw_line(Vector2(min_edge.x, y), Vector2(max_edge.x, y), grid_color);
|
|
}
|
|
|
|
// Draw number markings.
|
|
draw_set_transform_matrix(Transform2D());
|
|
|
|
Ref<Font> font = get_theme_font(SNAME("font"), SNAME("Label"));
|
|
int font_size = get_theme_font_size(SNAME("font_size"), SNAME("Label"));
|
|
float font_height = font->get_height(font_size);
|
|
Color text_color = get_theme_color(SNAME("font_color"), EditorStringName(Editor));
|
|
|
|
for (int i = 0; i <= grid_steps.x; ++i) {
|
|
real_t x = i * step_size.x;
|
|
draw_string(font, get_view_pos(Vector2(x - step_size.x / 2, curve->get_min_value())) + Vector2(0, font_height - Math::round(2 * EDSCALE)), String::num(x, 2), HORIZONTAL_ALIGNMENT_CENTER, get_view_pos(Vector2(step_size.x, 0)).x, font_size, text_color);
|
|
}
|
|
|
|
for (int i = 0; i <= grid_steps.y; ++i) {
|
|
real_t y = curve->get_min_value() + i * step_size.y;
|
|
draw_string(font, get_view_pos(Vector2(0, y)) + Vector2(2, -2), String::num(y, 2), HORIZONTAL_ALIGNMENT_LEFT, -1, font_size, text_color);
|
|
}
|
|
|
|
// Draw curve.
|
|
|
|
// An unusual transform so we can offset the curve before scaling it up, allowing the curve to be antialiased.
|
|
// The scaling up ensures that the curve rendering doesn't break when we use a quad line to draw it.
|
|
draw_set_transform_matrix(Transform2D(0, get_view_pos(Vector2(0, 0))));
|
|
|
|
const Color line_color = get_theme_color(SNAME("font_color"), EditorStringName(Editor));
|
|
const Color edge_line_color = get_theme_color(SNAME("font_color"), EditorStringName(Editor)) * Color(1, 1, 1, 0.75);
|
|
|
|
CanvasItemPlotCurve plot_func(*this, line_color, edge_line_color);
|
|
plot_curve_accurate(**curve, 2.f, (get_view_pos(Vector2(1, curve->get_max_value())) - get_view_pos(Vector2(0, curve->get_min_value()))) / Vector2(1, curve->get_range()), plot_func);
|
|
|
|
// Draw points, except for the selected one.
|
|
draw_set_transform_matrix(Transform2D());
|
|
|
|
bool shift_pressed = Input::get_singleton()->is_key_pressed(Key::SHIFT);
|
|
|
|
const Color point_color = get_theme_color(SNAME("font_color"), EditorStringName(Editor));
|
|
|
|
for (int i = 0; i < curve->get_point_count(); ++i) {
|
|
Vector2 pos = get_view_pos(curve->get_point_position(i));
|
|
if (selected_index != i) {
|
|
draw_rect(Rect2(pos, Vector2(0, 0)).grow(point_radius), point_color);
|
|
}
|
|
if (hovered_index == i && hovered_tangent_index == TANGENT_NONE) {
|
|
draw_rect(Rect2(pos, Vector2(0, 0)).grow(hover_radius - Math::round(3 * EDSCALE)), line_color, false, Math::round(1 * EDSCALE));
|
|
}
|
|
}
|
|
|
|
// Draw selected point and its tangents.
|
|
|
|
if (selected_index >= 0) {
|
|
const Vector2 point_pos = curve->get_point_position(selected_index);
|
|
const Color selected_point_color = get_theme_color(SNAME("accent_color"), EditorStringName(Editor));
|
|
|
|
// Draw tangents if not dragging a point, or if holding a point without having moved it yet.
|
|
if (grabbing == GRAB_NONE || initial_grab_pos == point_pos || selected_tangent_index != TANGENT_NONE) {
|
|
const Color selected_tangent_color = get_theme_color(SNAME("accent_color"), EditorStringName(Editor)).darkened(0.25);
|
|
const Color tangent_color = get_theme_color(SNAME("font_color"), EditorStringName(Editor)).darkened(0.25);
|
|
|
|
if (selected_index != 0) {
|
|
Vector2 control_pos = get_tangent_view_pos(selected_index, TANGENT_LEFT);
|
|
Color left_tangent_color = (selected_tangent_index == TANGENT_LEFT) ? selected_tangent_color : tangent_color;
|
|
|
|
draw_line(get_view_pos(point_pos), control_pos, left_tangent_color, 0.5 * EDSCALE, true);
|
|
// Square for linear mode, circle otherwise.
|
|
if (curve->get_point_left_mode(selected_index) == Curve::TANGENT_FREE) {
|
|
draw_circle(control_pos, tangent_radius, left_tangent_color);
|
|
} else {
|
|
draw_rect(Rect2(control_pos, Vector2(0, 0)).grow(tangent_radius), left_tangent_color);
|
|
}
|
|
// Hover indicator.
|
|
if (hovered_tangent_index == TANGENT_LEFT || (hovered_tangent_index == TANGENT_RIGHT && !shift_pressed && curve->get_point_left_mode(selected_index) != Curve::TANGENT_LINEAR)) {
|
|
draw_rect(Rect2(control_pos, Vector2(0, 0)).grow(tangent_hover_radius - Math::round(3 * EDSCALE)), tangent_color, false, Math::round(1 * EDSCALE));
|
|
}
|
|
}
|
|
|
|
if (selected_index != curve->get_point_count() - 1) {
|
|
Vector2 control_pos = get_tangent_view_pos(selected_index, TANGENT_RIGHT);
|
|
Color right_tangent_color = (selected_tangent_index == TANGENT_RIGHT) ? selected_tangent_color : tangent_color;
|
|
|
|
draw_line(get_view_pos(point_pos), control_pos, right_tangent_color, 0.5 * EDSCALE, true);
|
|
// Square for linear mode, circle otherwise.
|
|
if (curve->get_point_right_mode(selected_index) == Curve::TANGENT_FREE) {
|
|
draw_circle(control_pos, tangent_radius, right_tangent_color);
|
|
} else {
|
|
draw_rect(Rect2(control_pos, Vector2(0, 0)).grow(tangent_radius), right_tangent_color);
|
|
}
|
|
// Hover indicator.
|
|
if (hovered_tangent_index == TANGENT_RIGHT || (hovered_tangent_index == TANGENT_LEFT && !shift_pressed && curve->get_point_right_mode(selected_index) != Curve::TANGENT_LINEAR)) {
|
|
draw_rect(Rect2(control_pos, Vector2(0, 0)).grow(tangent_hover_radius - Math::round(3 * EDSCALE)), tangent_color, false, Math::round(1 * EDSCALE));
|
|
}
|
|
}
|
|
}
|
|
|
|
draw_rect(Rect2(get_view_pos(point_pos), Vector2(0, 0)).grow(point_radius), selected_point_color);
|
|
}
|
|
|
|
// Draw help text.
|
|
|
|
if (selected_index > 0 && selected_index < curve->get_point_count() - 1 && selected_tangent_index == TANGENT_NONE && hovered_tangent_index != TANGENT_NONE && !shift_pressed) {
|
|
float width = view_size.x - 50 * EDSCALE;
|
|
text_color.a *= 0.4;
|
|
|
|
draw_multiline_string(font, Vector2(25 * EDSCALE, font_height - Math::round(2 * EDSCALE)), TTR("Hold Shift to edit tangents individually"), HORIZONTAL_ALIGNMENT_CENTER, width, font_size, -1, text_color);
|
|
|
|
} else if (selected_index != -1 && selected_tangent_index == TANGENT_NONE) {
|
|
const Vector2 point_pos = curve->get_point_position(selected_index);
|
|
float width = view_size.x - 50 * EDSCALE;
|
|
text_color.a *= 0.8;
|
|
|
|
draw_string(font, Vector2(25 * EDSCALE, font_height - Math::round(2 * EDSCALE)), vformat("(%.2f, %.2f)", point_pos.x, point_pos.y), HORIZONTAL_ALIGNMENT_CENTER, width, font_size, text_color);
|
|
|
|
} else if (selected_index != -1 && selected_tangent_index != TANGENT_NONE) {
|
|
float width = view_size.x - 50 * EDSCALE;
|
|
text_color.a *= 0.8;
|
|
real_t theta = Math::rad_to_deg(Math::atan(selected_tangent_index == TANGENT_LEFT ? -1 * curve->get_point_left_tangent(selected_index) : curve->get_point_right_tangent(selected_index)));
|
|
|
|
draw_string(font, Vector2(25 * EDSCALE, font_height - Math::round(2 * EDSCALE)), String::num(theta, 1) + String::utf8(" °"), HORIZONTAL_ALIGNMENT_CENTER, width, font_size, text_color);
|
|
}
|
|
|
|
// Draw temporary constraints and snapping axes.
|
|
draw_set_transform_matrix(_world_to_view);
|
|
|
|
if (Input::get_singleton()->is_key_pressed(Key::ALT) && grabbing != GRAB_NONE && selected_tangent_index == TANGENT_NONE) {
|
|
float prev_point_offset = (selected_index > 0) ? curve->get_point_position(selected_index - 1).x : 0.0;
|
|
float next_point_offset = (selected_index < curve->get_point_count() - 1) ? curve->get_point_position(selected_index + 1).x : 1.0;
|
|
|
|
draw_line(Vector2(prev_point_offset, curve->get_min_value()), Vector2(prev_point_offset, curve->get_max_value()), Color(point_color, 0.6));
|
|
draw_line(Vector2(next_point_offset, curve->get_min_value()), Vector2(next_point_offset, curve->get_max_value()), Color(point_color, 0.6));
|
|
}
|
|
|
|
if (shift_pressed && grabbing != GRAB_NONE && selected_tangent_index == TANGENT_NONE) {
|
|
draw_line(Vector2(initial_grab_pos.x, curve->get_min_value()), Vector2(initial_grab_pos.x, curve->get_max_value()), get_theme_color(SNAME("axis_x_color"), EditorStringName(Editor)).darkened(0.4));
|
|
draw_line(Vector2(0, initial_grab_pos.y), Vector2(1, initial_grab_pos.y), get_theme_color(SNAME("axis_y_color"), EditorStringName(Editor)).darkened(0.4));
|
|
}
|
|
}
|
|
|
|
///////////////////////
|
|
|
|
const int CurveEditor::DEFAULT_SNAP = 10;
|
|
|
|
void CurveEditor::_set_snap_enabled(bool p_enabled) {
|
|
curve_editor_rect->set_snap_enabled(p_enabled);
|
|
snap_count_edit->set_visible(p_enabled);
|
|
}
|
|
|
|
void CurveEditor::_set_snap_count(int p_snap_count) {
|
|
curve_editor_rect->set_snap_count(CLAMP(p_snap_count, 2, 100));
|
|
}
|
|
|
|
void CurveEditor::_on_preset_item_selected(int p_preset_id) {
|
|
curve_editor_rect->use_preset(p_preset_id);
|
|
}
|
|
|
|
void CurveEditor::set_curve(const Ref<Curve> &p_curve) {
|
|
curve_editor_rect->set_curve(p_curve);
|
|
}
|
|
|
|
void CurveEditor::_notification(int p_what) {
|
|
switch (p_what) {
|
|
case NOTIFICATION_THEME_CHANGED: {
|
|
spacing = Math::round(BASE_SPACING * get_theme_default_base_scale());
|
|
snap_button->set_icon(get_editor_theme_icon(SNAME("SnapGrid")));
|
|
PopupMenu *p = presets_button->get_popup();
|
|
p->clear();
|
|
p->add_icon_item(get_editor_theme_icon(SNAME("CurveConstant")), TTR("Constant"), CurveEdit::PRESET_CONSTANT);
|
|
p->add_icon_item(get_editor_theme_icon(SNAME("CurveLinear")), TTR("Linear"), CurveEdit::PRESET_LINEAR);
|
|
p->add_icon_item(get_editor_theme_icon(SNAME("CurveIn")), TTR("Ease In"), CurveEdit::PRESET_EASE_IN);
|
|
p->add_icon_item(get_editor_theme_icon(SNAME("CurveOut")), TTR("Ease Out"), CurveEdit::PRESET_EASE_OUT);
|
|
p->add_icon_item(get_editor_theme_icon(SNAME("CurveInOut")), TTR("Smoothstep"), CurveEdit::PRESET_SMOOTHSTEP);
|
|
} break;
|
|
case NOTIFICATION_READY: {
|
|
Ref<Curve> curve = curve_editor_rect->get_curve();
|
|
if (curve.is_valid()) {
|
|
// Set snapping settings based on the curve's meta.
|
|
snap_button->set_pressed(curve->get_meta("_snap_enabled", false));
|
|
snap_count_edit->set_value(curve->get_meta("_snap_count", DEFAULT_SNAP));
|
|
}
|
|
} break;
|
|
case NOTIFICATION_RESIZED:
|
|
curve_editor_rect->update_minimum_size();
|
|
break;
|
|
}
|
|
}
|
|
|
|
CurveEditor::CurveEditor() {
|
|
HFlowContainer *toolbar = memnew(HFlowContainer);
|
|
add_child(toolbar);
|
|
|
|
snap_button = memnew(Button);
|
|
snap_button->set_tooltip_text(TTR("Toggle Grid Snap"));
|
|
snap_button->set_toggle_mode(true);
|
|
toolbar->add_child(snap_button);
|
|
snap_button->connect("toggled", callable_mp(this, &CurveEditor::_set_snap_enabled));
|
|
|
|
toolbar->add_child(memnew(VSeparator));
|
|
|
|
snap_count_edit = memnew(EditorSpinSlider);
|
|
snap_count_edit->set_min(2);
|
|
snap_count_edit->set_max(100);
|
|
snap_count_edit->set_value(DEFAULT_SNAP);
|
|
snap_count_edit->set_custom_minimum_size(Size2(65 * EDSCALE, 0));
|
|
toolbar->add_child(snap_count_edit);
|
|
snap_count_edit->connect("value_changed", callable_mp(this, &CurveEditor::_set_snap_count));
|
|
|
|
presets_button = memnew(MenuButton);
|
|
presets_button->set_text(TTR("Presets"));
|
|
presets_button->set_switch_on_hover(true);
|
|
presets_button->set_h_size_flags(SIZE_EXPAND | SIZE_SHRINK_END);
|
|
toolbar->add_child(presets_button);
|
|
presets_button->get_popup()->connect(SceneStringName(id_pressed), callable_mp(this, &CurveEditor::_on_preset_item_selected));
|
|
|
|
curve_editor_rect = memnew(CurveEdit);
|
|
add_child(curve_editor_rect);
|
|
|
|
// Some empty space below. Not a part of the curve editor so it can't draw in it.
|
|
Control *empty_space = memnew(Control);
|
|
empty_space->set_custom_minimum_size(Vector2(0, spacing));
|
|
add_child(empty_space);
|
|
|
|
set_mouse_filter(MOUSE_FILTER_STOP);
|
|
_set_snap_enabled(snap_button->is_pressed());
|
|
_set_snap_count(snap_count_edit->get_value());
|
|
}
|
|
|
|
///////////////////////
|
|
|
|
bool EditorInspectorPluginCurve::can_handle(Object *p_object) {
|
|
return Object::cast_to<Curve>(p_object) != nullptr;
|
|
}
|
|
|
|
void EditorInspectorPluginCurve::parse_begin(Object *p_object) {
|
|
Curve *curve = Object::cast_to<Curve>(p_object);
|
|
ERR_FAIL_NULL(curve);
|
|
Ref<Curve> c(curve);
|
|
|
|
CurveEditor *editor = memnew(CurveEditor);
|
|
editor->set_curve(c);
|
|
add_custom_control(editor);
|
|
}
|
|
|
|
CurveEditorPlugin::CurveEditorPlugin() {
|
|
Ref<EditorInspectorPluginCurve> plugin;
|
|
plugin.instantiate();
|
|
add_inspector_plugin(plugin);
|
|
|
|
EditorInterface::get_singleton()->get_resource_previewer()->add_preview_generator(memnew(CurvePreviewGenerator));
|
|
}
|
|
|
|
///////////////////////
|
|
|
|
bool CurvePreviewGenerator::handles(const String &p_type) const {
|
|
return p_type == "Curve";
|
|
}
|
|
|
|
Ref<Texture2D> CurvePreviewGenerator::generate(const Ref<Resource> &p_from, const Size2 &p_size, Dictionary &p_metadata) const {
|
|
Ref<Curve> curve = p_from;
|
|
if (curve.is_null()) {
|
|
return Ref<Texture2D>();
|
|
}
|
|
|
|
Size2 thumbnail_size = p_size * EDSCALE;
|
|
Ref<Image> img_ref;
|
|
img_ref.instantiate();
|
|
Image &im = **img_ref;
|
|
im.initialize_data(thumbnail_size.x, thumbnail_size.y, false, Image::FORMAT_RGBA8);
|
|
|
|
Color bg_color(0.1, 0.1, 0.1, 1.0);
|
|
Color line_color(0.8, 0.8, 0.8, 1.0);
|
|
|
|
im.fill(bg_color);
|
|
// Set the first pixel of the thumbnail.
|
|
float v = (curve->sample_baked(0) - curve->get_min_value()) / curve->get_range();
|
|
int y = CLAMP(im.get_height() - v * im.get_height(), 0, im.get_height() - 1);
|
|
im.set_pixel(0, y, line_color);
|
|
|
|
// Plot a line towards the next point.
|
|
int prev_y = y;
|
|
for (int x = 1; x < im.get_width(); ++x) {
|
|
float t = static_cast<float>(x) / im.get_width();
|
|
v = (curve->sample_baked(t) - curve->get_min_value()) / curve->get_range();
|
|
y = CLAMP(im.get_height() - v * im.get_height(), 0, im.get_height() - 1);
|
|
|
|
Vector<Point2i> points = Geometry2D::bresenham_line(Point2i(x - 1, prev_y), Point2i(x, y));
|
|
for (Point2i point : points) {
|
|
im.set_pixelv(point, line_color);
|
|
}
|
|
prev_y = y;
|
|
}
|
|
|
|
return ImageTexture::create_from_image(img_ref);
|
|
}
|