virtualx-engine/editor/plugins/shader_editor_plugin.cpp
Rémi Verschelde d95794ec8a
One Copyright Update to rule them all
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".
2023-01-05 13:25:55 +01:00

479 lines
16 KiB
C++

/**************************************************************************/
/* shader_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 "shader_editor_plugin.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "editor/editor_undo_redo_manager.h"
#include "editor/filesystem_dock.h"
#include "editor/inspector_dock.h"
#include "editor/plugins/text_shader_editor.h"
#include "editor/plugins/visual_shader_editor_plugin.h"
#include "editor/shader_create_dialog.h"
#include "scene/gui/item_list.h"
#include "scene/gui/texture_rect.h"
void ShaderEditorPlugin::_update_shader_list() {
shader_list->clear();
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
Ref<Resource> shader = edited_shaders[i].shader;
if (shader.is_null()) {
shader = edited_shaders[i].shader_inc;
}
String path = shader->get_path();
String text = path.get_file();
if (text.is_empty()) {
// This appears for newly created built-in shaders before saving the scene.
text = TTR("[unsaved]");
} else if (shader->is_built_in()) {
const String &shader_name = shader->get_name();
if (!shader_name.is_empty()) {
text = vformat("%s (%s)", shader_name, text.get_slice("::", 0));
}
}
bool unsaved = false;
if (edited_shaders[i].shader_editor) {
unsaved = edited_shaders[i].shader_editor->is_unsaved();
}
// TODO: Handle visual shaders too.
if (unsaved) {
text += "(*)";
}
String _class = shader->get_class();
if (!shader_list->has_theme_icon(_class, SNAME("EditorIcons"))) {
_class = "TextFile";
}
Ref<Texture2D> icon = shader_list->get_theme_icon(_class, SNAME("EditorIcons"));
shader_list->add_item(text, icon);
shader_list->set_item_tooltip(shader_list->get_item_count() - 1, path);
}
if (shader_tabs->get_tab_count()) {
shader_list->select(shader_tabs->get_current_tab());
}
for (int i = FILE_SAVE; i < FILE_MAX; i++) {
file_menu->get_popup()->set_item_disabled(file_menu->get_popup()->get_item_index(i), edited_shaders.size() == 0);
}
_update_shader_list_status();
}
void ShaderEditorPlugin::_update_shader_list_status() {
for (int i = 0; i < shader_list->get_item_count(); i++) {
TextShaderEditor *se = Object::cast_to<TextShaderEditor>(shader_tabs->get_tab_control(i));
if (se) {
if (se->was_compilation_successful()) {
shader_list->set_item_tag_icon(i, Ref<Texture2D>());
} else {
shader_list->set_item_tag_icon(i, shader_list->get_theme_icon(SNAME("Error"), SNAME("EditorIcons")));
}
}
}
}
void ShaderEditorPlugin::_move_shader_tab(int p_from, int p_to) {
if (p_from == p_to) {
return;
}
EditedShader es = edited_shaders[p_from];
edited_shaders.remove_at(p_from);
edited_shaders.insert(p_to, es);
shader_tabs->move_child(shader_tabs->get_tab_control(p_from), p_to);
_update_shader_list();
}
void ShaderEditorPlugin::edit(Object *p_object) {
EditedShader es;
ShaderInclude *si = Object::cast_to<ShaderInclude>(p_object);
if (si != nullptr) {
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader_inc.ptr() == si) {
shader_tabs->set_current_tab(i);
shader_list->select(i);
return;
}
}
es.shader_inc = Ref<ShaderInclude>(si);
es.shader_editor = memnew(TextShaderEditor);
es.shader_editor->edit(si);
shader_tabs->add_child(es.shader_editor);
es.shader_editor->connect("validation_changed", callable_mp(this, &ShaderEditorPlugin::_update_shader_list));
} else {
Shader *s = Object::cast_to<Shader>(p_object);
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader.ptr() == s) {
shader_tabs->set_current_tab(i);
shader_list->select(i);
return;
}
}
es.shader = Ref<Shader>(s);
Ref<VisualShader> vs = es.shader;
if (vs.is_valid()) {
es.visual_shader_editor = memnew(VisualShaderEditor);
shader_tabs->add_child(es.visual_shader_editor);
es.visual_shader_editor->edit(vs.ptr());
} else {
es.shader_editor = memnew(TextShaderEditor);
shader_tabs->add_child(es.shader_editor);
es.shader_editor->edit(s);
es.shader_editor->connect("validation_changed", callable_mp(this, &ShaderEditorPlugin::_update_shader_list));
}
}
shader_tabs->set_current_tab(shader_tabs->get_tab_count() - 1);
edited_shaders.push_back(es);
_update_shader_list();
}
bool ShaderEditorPlugin::handles(Object *p_object) const {
return Object::cast_to<Shader>(p_object) != nullptr || Object::cast_to<ShaderInclude>(p_object) != nullptr;
}
void ShaderEditorPlugin::make_visible(bool p_visible) {
if (p_visible) {
EditorNode::get_singleton()->make_bottom_panel_item_visible(main_split);
}
}
void ShaderEditorPlugin::selected_notify() {
}
TextShaderEditor *ShaderEditorPlugin::get_shader_editor(const Ref<Shader> &p_for_shader) {
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader == p_for_shader) {
return edited_shaders[i].shader_editor;
}
}
return nullptr;
}
VisualShaderEditor *ShaderEditorPlugin::get_visual_shader_editor(const Ref<Shader> &p_for_shader) {
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader == p_for_shader) {
return edited_shaders[i].visual_shader_editor;
}
}
return nullptr;
}
void ShaderEditorPlugin::save_external_data() {
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader_editor) {
edited_shaders[i].shader_editor->save_external_data();
}
}
_update_shader_list();
}
void ShaderEditorPlugin::apply_changes() {
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader_editor) {
edited_shaders[i].shader_editor->apply_shaders();
}
}
}
void ShaderEditorPlugin::_shader_selected(int p_index) {
if (edited_shaders[p_index].shader_editor) {
edited_shaders[p_index].shader_editor->validate_script();
}
shader_tabs->set_current_tab(p_index);
shader_list->select(p_index);
}
void ShaderEditorPlugin::_shader_list_clicked(int p_item, Vector2 p_local_mouse_pos, MouseButton p_mouse_button_index) {
if (p_mouse_button_index == MouseButton::MIDDLE) {
_close_shader(p_item);
}
}
void ShaderEditorPlugin::_close_shader(int p_index) {
ERR_FAIL_INDEX(p_index, shader_tabs->get_tab_count());
Control *c = shader_tabs->get_tab_control(p_index);
memdelete(c);
edited_shaders.remove_at(p_index);
_update_shader_list();
EditorNode::get_undo_redo()->clear_history(); // To prevent undo on deleted graphs.
}
void ShaderEditorPlugin::_resource_saved(Object *obj) {
// May have been renamed on save.
for (uint32_t i = 0; i < edited_shaders.size(); i++) {
if (edited_shaders[i].shader.ptr() == obj) {
_update_shader_list();
return;
}
}
}
void ShaderEditorPlugin::_menu_item_pressed(int p_index) {
switch (p_index) {
case FILE_NEW: {
String base_path = FileSystemDock::get_singleton()->get_current_path().get_base_dir();
shader_create_dialog->config(base_path.path_join("new_shader"), false, false, 0);
shader_create_dialog->popup_centered();
} break;
case FILE_NEW_INCLUDE: {
String base_path = FileSystemDock::get_singleton()->get_current_path().get_base_dir();
shader_create_dialog->config(base_path.path_join("new_shader"), false, false, 2);
shader_create_dialog->popup_centered();
} break;
case FILE_OPEN: {
InspectorDock::get_singleton()->open_resource("Shader");
} break;
case FILE_OPEN_INCLUDE: {
InspectorDock::get_singleton()->open_resource("ShaderInclude");
} break;
case FILE_SAVE: {
int index = shader_tabs->get_current_tab();
ERR_FAIL_INDEX(index, shader_tabs->get_tab_count());
if (edited_shaders[index].shader.is_valid()) {
EditorNode::get_singleton()->save_resource(edited_shaders[index].shader);
} else {
EditorNode::get_singleton()->save_resource(edited_shaders[index].shader_inc);
}
if (edited_shaders[index].shader_editor) {
edited_shaders[index].shader_editor->tag_saved_version();
}
} break;
case FILE_SAVE_AS: {
int index = shader_tabs->get_current_tab();
ERR_FAIL_INDEX(index, shader_tabs->get_tab_count());
String path;
if (edited_shaders[index].shader.is_valid()) {
path = edited_shaders[index].shader->get_path();
if (!path.is_resource_file()) {
path = "";
}
EditorNode::get_singleton()->save_resource_as(edited_shaders[index].shader, path);
} else {
path = edited_shaders[index].shader_inc->get_path();
if (!path.is_resource_file()) {
path = "";
}
EditorNode::get_singleton()->save_resource_as(edited_shaders[index].shader_inc, path);
}
if (edited_shaders[index].shader_editor) {
edited_shaders[index].shader_editor->tag_saved_version();
}
} break;
case FILE_INSPECT: {
int index = shader_tabs->get_current_tab();
ERR_FAIL_INDEX(index, shader_tabs->get_tab_count());
if (edited_shaders[index].shader.is_valid()) {
EditorNode::get_singleton()->push_item(edited_shaders[index].shader.ptr());
} else {
EditorNode::get_singleton()->push_item(edited_shaders[index].shader_inc.ptr());
}
} break;
case FILE_CLOSE: {
_close_shader(shader_tabs->get_current_tab());
} break;
}
}
void ShaderEditorPlugin::_shader_created(Ref<Shader> p_shader) {
EditorNode::get_singleton()->push_item(p_shader.ptr());
}
void ShaderEditorPlugin::_shader_include_created(Ref<ShaderInclude> p_shader_inc) {
EditorNode::get_singleton()->push_item(p_shader_inc.ptr());
}
Variant ShaderEditorPlugin::get_drag_data_fw(const Point2 &p_point, Control *p_from) {
if (shader_list->get_item_count() == 0) {
return Variant();
}
int idx = shader_list->get_item_at_position(p_point);
if (idx < 0) {
return Variant();
}
HBoxContainer *drag_preview = memnew(HBoxContainer);
String preview_name = shader_list->get_item_text(idx);
Ref<Texture2D> preview_icon = shader_list->get_item_icon(idx);
if (!preview_icon.is_null()) {
TextureRect *tf = memnew(TextureRect);
tf->set_texture(preview_icon);
tf->set_stretch_mode(TextureRect::STRETCH_KEEP_CENTERED);
drag_preview->add_child(tf);
}
Label *label = memnew(Label(preview_name));
drag_preview->add_child(label);
main_split->set_drag_preview(drag_preview);
Dictionary drag_data;
drag_data["type"] = "shader_list_element";
drag_data["shader_list_element"] = idx;
return drag_data;
}
bool ShaderEditorPlugin::can_drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) const {
Dictionary d = p_data;
if (!d.has("type")) {
return false;
}
if (String(d["type"]) == "shader_list_element") {
return true;
}
if (String(d["type"]) == "files") {
Vector<String> files = d["files"];
if (files.size() == 0) {
return false;
}
for (int i = 0; i < files.size(); i++) {
String file = files[i];
if (ResourceLoader::exists(file, "Shader")) {
Ref<Shader> shader = ResourceLoader::load(file);
if (shader.is_valid()) {
return true;
}
}
}
return false;
}
return false;
}
void ShaderEditorPlugin::drop_data_fw(const Point2 &p_point, const Variant &p_data, Control *p_from) {
if (!can_drop_data_fw(p_point, p_data, p_from)) {
return;
}
Dictionary d = p_data;
if (!d.has("type")) {
return;
}
if (String(d["type"]) == "shader_list_element") {
int idx = d["shader_list_element"];
int new_idx = shader_list->get_item_at_position(p_point);
_move_shader_tab(idx, new_idx);
return;
}
if (String(d["type"]) == "files") {
Vector<String> files = d["files"];
for (int i = 0; i < files.size(); i++) {
String file = files[i];
if (!ResourceLoader::exists(file, "Shader")) {
continue;
}
Ref<Resource> res = ResourceLoader::load(file);
if (res.is_valid()) {
edit(res.ptr());
}
}
}
}
void ShaderEditorPlugin::_bind_methods() {
ClassDB::bind_method(D_METHOD("_get_drag_data_fw", "point", "from"), &ShaderEditorPlugin::get_drag_data_fw);
ClassDB::bind_method(D_METHOD("_can_drop_data_fw", "point", "data", "from"), &ShaderEditorPlugin::can_drop_data_fw);
ClassDB::bind_method(D_METHOD("_drop_data_fw", "point", "data", "from"), &ShaderEditorPlugin::drop_data_fw);
}
ShaderEditorPlugin::ShaderEditorPlugin() {
main_split = memnew(HSplitContainer);
VBoxContainer *vb = memnew(VBoxContainer);
HBoxContainer *file_hb = memnew(HBoxContainer);
vb->add_child(file_hb);
file_menu = memnew(MenuButton);
file_menu->set_text(TTR("File"));
file_menu->get_popup()->add_item(TTR("New Shader"), FILE_NEW);
file_menu->get_popup()->add_item(TTR("New Shader Include"), FILE_NEW_INCLUDE);
file_menu->get_popup()->add_separator();
file_menu->get_popup()->add_item(TTR("Load Shader File"), FILE_OPEN);
file_menu->get_popup()->add_item(TTR("Load Shader Include File"), FILE_OPEN_INCLUDE);
file_menu->get_popup()->add_item(TTR("Save File"), FILE_SAVE);
file_menu->get_popup()->add_item(TTR("Save File As"), FILE_SAVE_AS);
file_menu->get_popup()->add_separator();
file_menu->get_popup()->add_item(TTR("Open File in Inspector"), FILE_INSPECT);
file_menu->get_popup()->add_separator();
file_menu->get_popup()->add_item(TTR("Close File"), FILE_CLOSE);
file_menu->get_popup()->connect("id_pressed", callable_mp(this, &ShaderEditorPlugin::_menu_item_pressed));
file_hb->add_child(file_menu);
for (int i = FILE_SAVE; i < FILE_MAX; i++) {
file_menu->get_popup()->set_item_disabled(file_menu->get_popup()->get_item_index(i), true);
}
shader_list = memnew(ItemList);
shader_list->set_v_size_flags(Control::SIZE_EXPAND_FILL);
vb->add_child(shader_list);
shader_list->connect("item_selected", callable_mp(this, &ShaderEditorPlugin::_shader_selected));
shader_list->connect("item_clicked", callable_mp(this, &ShaderEditorPlugin::_shader_list_clicked));
shader_list->set_drag_forwarding(this);
main_split->add_child(vb);
vb->set_custom_minimum_size(Size2(200, 300) * EDSCALE);
shader_tabs = memnew(TabContainer);
shader_tabs->set_tabs_visible(false);
shader_tabs->set_h_size_flags(Control::SIZE_EXPAND_FILL);
main_split->add_child(shader_tabs);
Ref<StyleBoxEmpty> empty;
empty.instantiate();
shader_tabs->add_theme_style_override("panel", empty);
button = EditorNode::get_singleton()->add_bottom_panel_item(TTR("Shader Editor"), main_split);
// Defer connect because Editor class is not in the binding system yet.
EditorNode::get_singleton()->call_deferred("connect", "resource_saved", callable_mp(this, &ShaderEditorPlugin::_resource_saved), CONNECT_DEFERRED);
shader_create_dialog = memnew(ShaderCreateDialog);
vb->add_child(shader_create_dialog);
shader_create_dialog->connect("shader_created", callable_mp(this, &ShaderEditorPlugin::_shader_created));
shader_create_dialog->connect("shader_include_created", callable_mp(this, &ShaderEditorPlugin::_shader_include_created));
}
ShaderEditorPlugin::~ShaderEditorPlugin() {
}