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godot/editor/plugins/theme_editor_preview.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

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/**************************************************************************/
/* theme_editor_preview.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 "theme_editor_preview.h"
#include "core/config/project_settings.h"
#include "core/input/input.h"
#include "core/math/math_funcs.h"
#include "editor/editor_node.h"
#include "editor/editor_scale.h"
#include "scene/gui/button.h"
#include "scene/gui/check_box.h"
#include "scene/gui/check_button.h"
#include "scene/gui/color_picker.h"
#include "scene/gui/progress_bar.h"
#include "scene/gui/text_edit.h"
#include "scene/gui/tree.h"
#include "scene/resources/packed_scene.h"
#include "scene/theme/theme_db.h"
constexpr double REFRESH_TIMER = 1.5;
void ThemeEditorPreview::set_preview_theme(const Ref<Theme> &p_theme) {
preview_content->set_theme(p_theme);
}
void ThemeEditorPreview::add_preview_overlay(Control *p_overlay) {
preview_overlay->add_child(p_overlay);
p_overlay->hide();
}
void ThemeEditorPreview::_propagate_redraw(Control *p_at) {
p_at->notification(NOTIFICATION_THEME_CHANGED);
p_at->update_minimum_size();
p_at->queue_redraw();
for (int i = 0; i < p_at->get_child_count(); i++) {
Control *a = Object::cast_to<Control>(p_at->get_child(i));
if (a) {
_propagate_redraw(a);
}
}
}
void ThemeEditorPreview::_refresh_interval() {
// In case the project settings have changed.
preview_bg->set_color(GLOBAL_GET("rendering/environment/defaults/default_clear_color"));
_propagate_redraw(preview_bg);
_propagate_redraw(preview_content);
}
void ThemeEditorPreview::_preview_visibility_changed() {
set_process(is_visible_in_tree());
}
void ThemeEditorPreview::_picker_button_cbk() {
picker_overlay->set_visible(picker_button->is_pressed());
if (picker_button->is_pressed()) {
_reset_picker_overlay();
}
}
Control *ThemeEditorPreview::_find_hovered_control(Control *p_parent, Vector2 p_mouse_position) {
Control *found = nullptr;
for (int i = p_parent->get_child_count() - 1; i >= 0; i--) {
Control *cc = Object::cast_to<Control>(p_parent->get_child(i));
if (!cc || !cc->is_visible()) {
continue;
}
Rect2 crect = cc->get_rect();
if (crect.has_point(p_mouse_position)) {
// Check if there is a child control under mouse.
if (cc->get_child_count() > 0) {
found = _find_hovered_control(cc, p_mouse_position - cc->get_position());
}
// If there are no applicable children, use the control itself.
if (!found) {
found = cc;
}
break;
}
}
return found;
}
void ThemeEditorPreview::_draw_picker_overlay() {
if (!picker_button->is_pressed()) {
return;
}
picker_overlay->draw_rect(Rect2(Vector2(0.0, 0.0), picker_overlay->get_size()), theme_cache.preview_picker_overlay_color);
if (hovered_control) {
Rect2 highlight_rect = hovered_control->get_global_rect();
highlight_rect.position = picker_overlay->get_global_transform().affine_inverse().xform(highlight_rect.position);
picker_overlay->draw_style_box(theme_cache.preview_picker_overlay, highlight_rect);
String highlight_name = hovered_control->get_theme_type_variation();
if (highlight_name == StringName()) {
highlight_name = hovered_control->get_class_name();
}
Rect2 highlight_label_rect = highlight_rect;
highlight_label_rect.size = theme_cache.preview_picker_font->get_string_size(highlight_name, HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size);
int margin_top = theme_cache.preview_picker_label->get_margin(SIDE_TOP);
int margin_left = theme_cache.preview_picker_label->get_margin(SIDE_LEFT);
int margin_bottom = theme_cache.preview_picker_label->get_margin(SIDE_BOTTOM);
int margin_right = theme_cache.preview_picker_label->get_margin(SIDE_RIGHT);
highlight_label_rect.size.x += margin_left + margin_right;
highlight_label_rect.size.y += margin_top + margin_bottom;
highlight_label_rect.position = highlight_label_rect.position.clamp(Vector2(), picker_overlay->get_size());
picker_overlay->draw_style_box(theme_cache.preview_picker_label, highlight_label_rect);
Point2 label_pos = highlight_label_rect.position;
label_pos.y += highlight_label_rect.size.y - margin_bottom;
label_pos.x += margin_left;
picker_overlay->draw_string(theme_cache.preview_picker_font, label_pos, highlight_name, HORIZONTAL_ALIGNMENT_LEFT, -1, theme_cache.font_size);
}
}
void ThemeEditorPreview::_gui_input_picker_overlay(const Ref<InputEvent> &p_event) {
if (!picker_button->is_pressed()) {
return;
}
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == MouseButton::LEFT) {
if (hovered_control) {
StringName theme_type = hovered_control->get_theme_type_variation();
if (theme_type == StringName()) {
theme_type = hovered_control->get_class_name();
}
emit_signal(SNAME("control_picked"), theme_type);
picker_button->set_pressed(false);
picker_overlay->set_visible(false);
return;
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
Vector2 mp = preview_content->get_local_mouse_position();
hovered_control = _find_hovered_control(preview_content, mp);
picker_overlay->queue_redraw();
}
// Forward input to the scroll container underneath to allow scrolling.
preview_container->gui_input(p_event);
}
void ThemeEditorPreview::_reset_picker_overlay() {
hovered_control = nullptr;
picker_overlay->queue_redraw();
}
void ThemeEditorPreview::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (is_visible_in_tree()) {
set_process(true);
}
connect("visibility_changed", callable_mp(this, &ThemeEditorPreview::_preview_visibility_changed));
[[fallthrough]];
}
case NOTIFICATION_THEME_CHANGED: {
picker_button->set_icon(get_theme_icon(SNAME("ColorPick"), SNAME("EditorIcons")));
theme_cache.preview_picker_overlay = get_theme_stylebox(SNAME("preview_picker_overlay"), SNAME("ThemeEditor"));
theme_cache.preview_picker_overlay_color = get_theme_color(SNAME("preview_picker_overlay_color"), SNAME("ThemeEditor"));
theme_cache.preview_picker_label = get_theme_stylebox(SNAME("preview_picker_label"), SNAME("ThemeEditor"));
theme_cache.preview_picker_font = get_theme_font(SNAME("status_source"), SNAME("EditorFonts"));
theme_cache.font_size = get_theme_font_size(SNAME("font_size"), SNAME("EditorFonts"));
} break;
case NOTIFICATION_PROCESS: {
time_left -= get_process_delta_time();
if (time_left < 0) {
time_left = REFRESH_TIMER;
_refresh_interval();
}
} break;
}
}
void ThemeEditorPreview::_bind_methods() {
ADD_SIGNAL(MethodInfo("control_picked", PropertyInfo(Variant::STRING, "class_name")));
}
ThemeEditorPreview::ThemeEditorPreview() {
preview_toolbar = memnew(HBoxContainer);
add_child(preview_toolbar);
picker_button = memnew(Button);
preview_toolbar->add_child(picker_button);
picker_button->set_flat(true);
picker_button->set_toggle_mode(true);
picker_button->set_tooltip_text(TTR("Toggle the control picker, allowing to visually select control types for edit."));
picker_button->connect("pressed", callable_mp(this, &ThemeEditorPreview::_picker_button_cbk));
MarginContainer *preview_body = memnew(MarginContainer);
preview_body->set_custom_minimum_size(Size2(480, 0) * EDSCALE);
preview_body->set_v_size_flags(SIZE_EXPAND_FILL);
add_child(preview_body);
preview_container = memnew(ScrollContainer);
preview_body->add_child(preview_container);
MarginContainer *preview_root = memnew(MarginContainer);
preview_container->add_child(preview_root);
preview_root->set_theme(ThemeDB::get_singleton()->get_default_theme());
preview_root->set_clip_contents(true);
preview_root->set_custom_minimum_size(Size2(450, 0) * EDSCALE);
preview_root->set_v_size_flags(SIZE_EXPAND_FILL);
preview_root->set_h_size_flags(SIZE_EXPAND_FILL);
preview_bg = memnew(ColorRect);
preview_bg->set_anchors_and_offsets_preset(PRESET_FULL_RECT);
preview_bg->set_color(GLOBAL_GET("rendering/environment/defaults/default_clear_color"));
preview_root->add_child(preview_bg);
preview_content = memnew(MarginContainer);
preview_root->add_child(preview_content);
preview_content->add_theme_constant_override("margin_right", 4 * EDSCALE);
preview_content->add_theme_constant_override("margin_top", 4 * EDSCALE);
preview_content->add_theme_constant_override("margin_left", 4 * EDSCALE);
preview_content->add_theme_constant_override("margin_bottom", 4 * EDSCALE);
preview_overlay = memnew(MarginContainer);
preview_overlay->set_mouse_filter(MOUSE_FILTER_IGNORE);
preview_overlay->set_clip_contents(true);
preview_body->add_child(preview_overlay);
picker_overlay = memnew(Control);
add_preview_overlay(picker_overlay);
picker_overlay->connect("draw", callable_mp(this, &ThemeEditorPreview::_draw_picker_overlay));
picker_overlay->connect("gui_input", callable_mp(this, &ThemeEditorPreview::_gui_input_picker_overlay));
picker_overlay->connect("mouse_exited", callable_mp(this, &ThemeEditorPreview::_reset_picker_overlay));
}
void DefaultThemeEditorPreview::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE:
case NOTIFICATION_THEME_CHANGED: {
test_color_picker_button->set_custom_minimum_size(Size2(0, get_theme_constant(SNAME("color_picker_button_height"), SNAME("Editor"))));
} break;
}
}
DefaultThemeEditorPreview::DefaultThemeEditorPreview() {
Panel *main_panel = memnew(Panel);
preview_content->add_child(main_panel);
MarginContainer *main_mc = memnew(MarginContainer);
main_mc->add_theme_constant_override("margin_right", 4 * EDSCALE);
main_mc->add_theme_constant_override("margin_top", 4 * EDSCALE);
main_mc->add_theme_constant_override("margin_left", 4 * EDSCALE);
main_mc->add_theme_constant_override("margin_bottom", 4 * EDSCALE);
preview_content->add_child(main_mc);
HBoxContainer *main_hb = memnew(HBoxContainer);
main_mc->add_child(main_hb);
main_hb->add_theme_constant_override("separation", 20 * EDSCALE);
VBoxContainer *first_vb = memnew(VBoxContainer);
main_hb->add_child(first_vb);
first_vb->set_h_size_flags(SIZE_EXPAND_FILL);
first_vb->add_theme_constant_override("separation", 10 * EDSCALE);
first_vb->add_child(memnew(Label("Label")));
first_vb->add_child(memnew(Button("Button")));
Button *bt = memnew(Button);
bt->set_text(TTR("Toggle Button"));
bt->set_toggle_mode(true);
bt->set_pressed(true);
first_vb->add_child(bt);
bt = memnew(Button);
bt->set_text(TTR("Disabled Button"));
bt->set_disabled(true);
first_vb->add_child(bt);
Button *tb = memnew(Button);
tb->set_flat(true);
tb->set_text("Button");
first_vb->add_child(tb);
CheckButton *cb = memnew(CheckButton);
cb->set_text("CheckButton");
first_vb->add_child(cb);
CheckBox *cbx = memnew(CheckBox);
cbx->set_text("CheckBox");
first_vb->add_child(cbx);
MenuButton *test_menu_button = memnew(MenuButton);
test_menu_button->set_text("MenuButton");
test_menu_button->get_popup()->add_item(TTR("Item"));
test_menu_button->get_popup()->add_item(TTR("Disabled Item"));
test_menu_button->get_popup()->set_item_disabled(1, true);
test_menu_button->get_popup()->add_separator();
test_menu_button->get_popup()->add_check_item(TTR("Check Item"));
test_menu_button->get_popup()->add_check_item(TTR("Checked Item"));
test_menu_button->get_popup()->set_item_checked(4, true);
test_menu_button->get_popup()->add_separator();
test_menu_button->get_popup()->add_radio_check_item(TTR("Radio Item"));
test_menu_button->get_popup()->add_radio_check_item(TTR("Checked Radio Item"));
test_menu_button->get_popup()->set_item_checked(7, true);
test_menu_button->get_popup()->add_separator(TTR("Named Separator"));
PopupMenu *test_submenu = memnew(PopupMenu);
test_menu_button->get_popup()->add_child(test_submenu);
test_submenu->set_name("submenu");
test_menu_button->get_popup()->add_submenu_item(TTR("Submenu"), "submenu");
test_submenu->add_item(TTR("Subitem 1"));
test_submenu->add_item(TTR("Subitem 2"));
first_vb->add_child(test_menu_button);
OptionButton *test_option_button = memnew(OptionButton);
test_option_button->add_item("OptionButton");
test_option_button->add_separator();
test_option_button->add_item(TTR("Has"));
test_option_button->add_item(TTR("Many"));
test_option_button->add_item(TTR("Options"));
first_vb->add_child(test_option_button);
test_color_picker_button = memnew(ColorPickerButton);
first_vb->add_child(test_color_picker_button);
VBoxContainer *second_vb = memnew(VBoxContainer);
second_vb->set_h_size_flags(SIZE_EXPAND_FILL);
main_hb->add_child(second_vb);
second_vb->add_theme_constant_override("separation", 10 * EDSCALE);
LineEdit *le = memnew(LineEdit);
le->set_text("LineEdit");
second_vb->add_child(le);
le = memnew(LineEdit);
le->set_text(TTR("Disabled LineEdit"));
le->set_editable(false);
second_vb->add_child(le);
TextEdit *te = memnew(TextEdit);
te->set_text("TextEdit");
te->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
second_vb->add_child(te);
second_vb->add_child(memnew(SpinBox));
HBoxContainer *vhb = memnew(HBoxContainer);
second_vb->add_child(vhb);
vhb->set_custom_minimum_size(Size2(0, 100) * EDSCALE);
vhb->add_child(memnew(VSlider));
VScrollBar *vsb = memnew(VScrollBar);
vsb->set_page(25);
vhb->add_child(vsb);
vhb->add_child(memnew(VSeparator));
VBoxContainer *hvb = memnew(VBoxContainer);
vhb->add_child(hvb);
hvb->set_alignment(BoxContainer::ALIGNMENT_CENTER);
hvb->set_h_size_flags(SIZE_EXPAND_FILL);
hvb->add_child(memnew(HSlider));
HScrollBar *hsb = memnew(HScrollBar);
hsb->set_page(25);
hvb->add_child(hsb);
HSlider *hs = memnew(HSlider);
hs->set_editable(false);
hvb->add_child(hs);
hvb->add_child(memnew(HSeparator));
ProgressBar *pb = memnew(ProgressBar);
pb->set_value(50);
hvb->add_child(pb);
VBoxContainer *third_vb = memnew(VBoxContainer);
third_vb->set_h_size_flags(SIZE_EXPAND_FILL);
third_vb->add_theme_constant_override("separation", 10 * EDSCALE);
main_hb->add_child(third_vb);
TabContainer *tc = memnew(TabContainer);
third_vb->add_child(tc);
tc->set_custom_minimum_size(Size2(0, 135) * EDSCALE);
Control *tcc = memnew(Control);
tcc->set_name(TTR("Tab 1"));
tc->add_child(tcc);
tcc = memnew(Control);
tcc->set_name(TTR("Tab 2"));
tc->add_child(tcc);
tcc = memnew(Control);
tcc->set_name(TTR("Tab 3"));
tc->add_child(tcc);
tc->set_tab_disabled(2, true);
Tree *test_tree = memnew(Tree);
third_vb->add_child(test_tree);
test_tree->set_custom_minimum_size(Size2(0, 175) * EDSCALE);
TreeItem *item = test_tree->create_item();
item->set_text(0, "Tree");
item = test_tree->create_item(test_tree->get_root());
item->set_text(0, "Item");
item = test_tree->create_item(test_tree->get_root());
item->set_editable(0, true);
item->set_text(0, TTR("Editable Item"));
TreeItem *sub_tree = test_tree->create_item(test_tree->get_root());
sub_tree->set_text(0, TTR("Subtree"));
item = test_tree->create_item(sub_tree);
item->set_cell_mode(0, TreeItem::CELL_MODE_CHECK);
item->set_editable(0, true);
item->set_text(0, "Check Item");
item = test_tree->create_item(sub_tree);
item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
item->set_editable(0, true);
item->set_range_config(0, 0, 20, 0.1);
item->set_range(0, 2);
item = test_tree->create_item(sub_tree);
item->set_cell_mode(0, TreeItem::CELL_MODE_RANGE);
item->set_editable(0, true);
item->set_text(0, TTR("Has,Many,Options"));
item->set_range(0, 2);
}
void SceneThemeEditorPreview::_reload_scene() {
if (loaded_scene.is_null()) {
return;
}
if (loaded_scene->get_path().is_empty() || !ResourceLoader::exists(loaded_scene->get_path())) {
EditorNode::get_singleton()->show_warning(TTR("Invalid path, the PackedScene resource was probably moved or removed."));
emit_signal(SNAME("scene_invalidated"));
return;
}
for (int i = preview_content->get_child_count() - 1; i >= 0; i--) {
Node *node = preview_content->get_child(i);
node->queue_free();
preview_content->remove_child(node);
}
Node *instance = loaded_scene->instantiate();
if (!instance || !Object::cast_to<Control>(instance)) {
EditorNode::get_singleton()->show_warning(TTR("Invalid PackedScene resource, must have a Control node at its root."));
emit_signal(SNAME("scene_invalidated"));
return;
}
preview_content->add_child(instance);
emit_signal(SNAME("scene_reloaded"));
}
void SceneThemeEditorPreview::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE:
case NOTIFICATION_THEME_CHANGED: {
reload_scene_button->set_icon(get_theme_icon(SNAME("Reload"), SNAME("EditorIcons")));
} break;
}
}
void SceneThemeEditorPreview::_bind_methods() {
ADD_SIGNAL(MethodInfo("scene_invalidated"));
ADD_SIGNAL(MethodInfo("scene_reloaded"));
}
bool SceneThemeEditorPreview::set_preview_scene(const String &p_path) {
loaded_scene = ResourceLoader::load(p_path);
if (loaded_scene.is_null()) {
EditorNode::get_singleton()->show_warning(TTR("Invalid file, not a PackedScene resource."));
return false;
}
Node *instance = loaded_scene->instantiate();
if (!instance || !Object::cast_to<Control>(instance)) {
EditorNode::get_singleton()->show_warning(TTR("Invalid PackedScene resource, must have a Control node at its root."));
return false;
}
preview_content->add_child(instance);
return true;
}
String SceneThemeEditorPreview::get_preview_scene_path() const {
if (loaded_scene.is_null()) {
return "";
}
return loaded_scene->get_path();
}
SceneThemeEditorPreview::SceneThemeEditorPreview() {
preview_toolbar->add_child(memnew(VSeparator));
reload_scene_button = memnew(Button);
reload_scene_button->set_flat(true);
reload_scene_button->set_tooltip_text(TTR("Reload the scene to reflect its most actual state."));
preview_toolbar->add_child(reload_scene_button);
reload_scene_button->connect("pressed", callable_mp(this, &SceneThemeEditorPreview::_reload_scene));
}
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