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pandemonium_engine/editor/plugins/theme_editor_preview.cpp

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/*************************************************************************/
/* theme_editor_preview.cpp */
/*************************************************************************/
/* This file is part of: */
/* PANDEMONIUM ENGINE */
/* https://github.com/Relintai/pandemonium_engine */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* Copyright (c) 2007-2022 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_event.h"
#include "core/io/resource_loader.h"
#include "core/math/math_defs.h"
#include "core/math/rect2.h"
#include "core/math/transform_2d.h"
#include "core/math/vector2.h"
#include "core/object/class_db.h"
#include "core/os/memory.h"
#include "core/string/string_name.h"
#include "core/typedefs.h"
#include "core/variant/variant.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/color_rect.h"
#include "scene/gui/label.h"
#include "scene/gui/line_edit.h"
#include "scene/gui/margin_container.h"
#include "scene/gui/menu_button.h"
#include "scene/gui/option_button.h"
#include "scene/gui/panel.h"
#include "scene/gui/popup_menu.h"
#include "scene/gui/progress_bar.h"
#include "scene/gui/scroll_bar.h"
#include "scene/gui/scroll_container.h"
#include "scene/gui/separator.h"
#include "scene/gui/slider.h"
#include "scene/gui/spin_box.h"
#include "scene/gui/tab_container.h"
#include "scene/gui/text_edit.h"
#include "scene/gui/tree.h"
#include "scene/main/control.h"
#include "scene/main/node.h"
#include "scene/resources/packed_scene.h"
#include "scene/resources/theme.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->minimum_size_changed();
p_at->update();
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_frame_color(GLOBAL_GET("rendering/environment/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);
int margin_top = theme_cache.preview_picker_label->get_margin(MARGIN_TOP);
int margin_left = theme_cache.preview_picker_label->get_margin(MARGIN_LEFT);
int margin_bottom = theme_cache.preview_picker_label->get_margin(MARGIN_BOTTOM);
int margin_right = theme_cache.preview_picker_label->get_margin(MARGIN_RIGHT);
highlight_label_rect.size.x += margin_left + margin_right;
highlight_label_rect.size.y += margin_top + margin_bottom;
highlight_label_rect.position.x = CLAMP(highlight_label_rect.position.x, 0.0, picker_overlay->get_size().width);
highlight_label_rect.position.y = CLAMP(highlight_label_rect.position.y, 0.0, picker_overlay->get_size().height);
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);
}
}
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() == BUTTON_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("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->update();
}
// Forward input to the scroll container underneath to allow scrolling.
preview_container->call("_gui_input", p_event);
}
void ThemeEditorPreview::_reset_picker_overlay() {
hovered_control = nullptr;
picker_overlay->update();
}
void ThemeEditorPreview::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_ENTER_TREE: {
if (is_visible_in_tree()) {
set_process(true);
}
connect("visibility_changed", this, "_preview_visibility_changed");
FALLTHROUGH;
}
case NOTIFICATION_THEME_CHANGED: {
picker_button->set_icon(get_theme_icon("ColorPick", "EditorIcons"));
theme_cache.preview_picker_overlay = get_theme_stylebox("preview_picker_overlay", "ThemeEditor");
theme_cache.preview_picker_overlay_color = get_theme_color("preview_picker_overlay_color", "ThemeEditor");
theme_cache.preview_picker_label = get_theme_stylebox("preview_picker_label", "ThemeEditor");
theme_cache.preview_picker_font = get_theme_font("status_source", "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() {
// Internal binds.
ClassDB::bind_method("_picker_button_cbk", &ThemeEditorPreview::_picker_button_cbk);
ClassDB::bind_method("_preview_visibility_changed", &ThemeEditorPreview::_preview_visibility_changed);
ClassDB::bind_method("_draw_picker_overlay", &ThemeEditorPreview::_draw_picker_overlay);
ClassDB::bind_method("_gui_input_picker_overlay", &ThemeEditorPreview::_gui_input_picker_overlay);
ClassDB::bind_method("_reset_picker_overlay", &ThemeEditorPreview::_reset_picker_overlay);
// Public binds.
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(TTR("Toggle the control picker, allowing to visually select control types for edit."));
picker_button->connect("pressed", this, "_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_container->set_enable_v_scroll(true);
preview_container->set_enable_h_scroll(true);
preview_body->add_child(preview_container);
MarginContainer *preview_root = memnew(MarginContainer);
preview_container->add_child(preview_root);
preview_root->set_theme(Theme::get_default());
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_margins_preset(PRESET_WIDE);
preview_bg->set_frame_color(GLOBAL_GET("rendering/environment/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", this, "_draw_picker_overlay");
picker_overlay->connect("gui_input", this, "_gui_input_picker_overlay");
picker_overlay->connect("mouse_exited", this, "_reset_picker_overlay");
}
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);
first_vb->add_child(memnew(ColorPickerButton));
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::ALIGN_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().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("scene_invalidated");
return;
}
for (int i = preview_content->get_child_count() - 1; i >= 0; i--) {
Node *node = preview_content->get_child(i);
node->queue_delete();
preview_content->remove_child(node);
}
Node *instance = loaded_scene->instance();
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("scene_invalidated");
return;
}
preview_content->add_child(instance);
emit_signal("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("Reload", "EditorIcons"));
} break;
}
}
void SceneThemeEditorPreview::_bind_methods() {
// Internal binds.
ClassDB::bind_method("_reload_scene", &SceneThemeEditorPreview::_reload_scene);
// Public binds.
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->instance();
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(TTR("Reload the scene to reflect its most actual state."));
preview_toolbar->add_child(reload_scene_button);
reload_scene_button->connect("pressed", this, "_reload_scene");
}
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