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pandemonium_engine/scene/gui/tab_container.cpp

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/*************************************************************************/
/* tab_container.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 "tab_container.h"
#include "scene/gui/box_container.h"
#include "scene/gui/label.h"
#include "scene/gui/popup.h"
#include "scene/gui/texture_rect.h"
int TabContainer::_get_top_margin() const {
if (!tabs_visible) {
return 0;
}
// Respect the minimum tab height.
Ref<StyleBox> tab_bg = get_theme_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_theme_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_theme_stylebox("tab_disabled");
int tab_height = MAX(MAX(tab_bg->get_minimum_size().height, tab_fg->get_minimum_size().height), tab_disabled->get_minimum_size().height);
// Font height or higher icon wins.
Ref<Font> font = get_theme_font("font");
int content_height = font->get_height();
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (!c->has_meta("_tab_icon")) {
continue;
}
Ref<Texture> tex = c->get_meta("_tab_icon");
if (!tex.is_valid()) {
continue;
}
content_height = MAX(content_height, tex->get_size().height);
}
return tab_height + content_height;
}
void TabContainer::_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventMouseButton> mb = p_event;
Popup *popup = get_popup();
if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
Point2 pos(mb->get_position().x, mb->get_position().y);
Size2 size = get_size();
// Click must be on tabs in the tab header area.
if (pos.x < tabs_ofs_cache || pos.y > _get_top_margin()) {
return;
}
// Handle menu button.
Ref<Texture> menu = get_theme_icon("menu");
if (popup && pos.x > size.width - menu->get_width()) {
emit_signal("pre_popup_pressed");
Vector2 popup_pos = get_global_position();
popup_pos.x += size.width * get_global_transform().get_scale().x - popup->get_size().width * popup->get_global_transform().get_scale().x;
popup_pos.y += menu->get_height() * get_global_transform().get_scale().y;
popup->set_global_position(popup_pos);
popup->popup();
return;
}
// Do not activate tabs when tabs is empty.
if (get_tab_count() == 0) {
return;
}
Vector<Control *> tabs = _get_tabs();
// Handle navigation buttons.
if (buttons_visible_cache) {
int popup_ofs = 0;
if (popup) {
popup_ofs = menu->get_width();
}
Ref<Texture> increment = get_theme_icon("increment");
Ref<Texture> decrement = get_theme_icon("decrement");
if (pos.x > size.width - increment->get_width() - popup_ofs) {
if (last_tab_cache < tabs.size() - 1) {
first_tab_cache += 1;
update();
}
return;
} else if (pos.x > size.width - increment->get_width() - decrement->get_width() - popup_ofs) {
if (first_tab_cache > 0) {
first_tab_cache -= 1;
update();
}
return;
}
}
// Activate the clicked tab.
pos.x -= tabs_ofs_cache;
for (int i = first_tab_cache; i <= last_tab_cache; i++) {
if (get_tab_hidden(i)) {
continue;
}
int tab_width = _get_tab_width(i);
if (pos.x < tab_width) {
if (!get_tab_disabled(i)) {
set_current_tab(i);
}
break;
}
pos.x -= tab_width;
}
}
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
Point2 pos(mm->get_position().x, mm->get_position().y);
Size2 size = get_size();
// Mouse must be on tabs in the tab header area.
if (pos.x < tabs_ofs_cache || pos.y > _get_top_margin()) {
if (menu_hovered || highlight_arrow > -1) {
menu_hovered = false;
highlight_arrow = -1;
update();
}
return;
}
Ref<Texture> menu = get_theme_icon("menu");
if (popup) {
if (pos.x >= size.width - menu->get_width()) {
if (!menu_hovered) {
menu_hovered = true;
highlight_arrow = -1;
update();
return;
}
} else if (menu_hovered) {
menu_hovered = false;
update();
}
if (menu_hovered) {
return;
}
}
// Do not activate tabs when tabs is empty.
if ((get_tab_count() == 0 || !buttons_visible_cache) && menu_hovered) {
highlight_arrow = -1;
update();
return;
}
int popup_ofs = 0;
if (popup) {
popup_ofs = menu->get_width();
}
Ref<Texture> increment = get_theme_icon("increment");
Ref<Texture> decrement = get_theme_icon("decrement");
if (pos.x >= size.width - increment->get_width() - popup_ofs) {
if (highlight_arrow != 1) {
highlight_arrow = 1;
update();
}
} else if (pos.x >= size.width - increment->get_width() - decrement->get_width() - popup_ofs) {
if (highlight_arrow != 0) {
highlight_arrow = 0;
update();
}
} else if (highlight_arrow > -1) {
highlight_arrow = -1;
update();
}
}
}
void TabContainer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_TRANSLATION_CHANGED: {
minimum_size_changed();
update();
} break;
case NOTIFICATION_RESIZED: {
Vector<Control *> tabs = _get_tabs();
int side_margin = get_theme_constant("side_margin");
Ref<Texture> menu = get_theme_icon("menu");
Ref<Texture> increment = get_theme_icon("increment");
Ref<Texture> decrement = get_theme_icon("decrement");
int header_width = get_size().width - side_margin * 2;
// Find the width of the header area.
Popup *popup = get_popup();
if (popup) {
header_width -= menu->get_width();
}
if (buttons_visible_cache) {
header_width -= increment->get_width() + decrement->get_width();
}
if (popup || buttons_visible_cache) {
header_width += side_margin;
}
// Find the width of all tabs after first_tab_cache.
int all_tabs_width = 0;
for (int i = first_tab_cache; i < tabs.size(); i++) {
int tab_width = _get_tab_width(i);
all_tabs_width += tab_width;
}
// Check if tabs before first_tab_cache would fit into the header area.
for (int i = first_tab_cache - 1; i >= 0; i--) {
int tab_width = _get_tab_width(i);
if (all_tabs_width + tab_width > header_width) {
break;
}
all_tabs_width += tab_width;
first_tab_cache--;
}
} break;
case NOTIFICATION_DRAW: {
RID canvas = get_canvas_item();
Size2 size = get_size();
// Draw only the tab area if the header is hidden.
Ref<StyleBox> panel = get_theme_stylebox("panel");
if (!tabs_visible) {
panel->draw(canvas, Rect2(0, 0, size.width, size.height));
return;
}
Vector<Control *> tabs = _get_tabs();
Ref<StyleBox> tab_bg = get_theme_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_theme_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_theme_stylebox("tab_disabled");
Ref<Texture> increment = get_theme_icon("increment");
Ref<Texture> increment_hl = get_theme_icon("increment_highlight");
Ref<Texture> decrement = get_theme_icon("decrement");
Ref<Texture> decrement_hl = get_theme_icon("decrement_highlight");
Ref<Texture> menu = get_theme_icon("menu");
Ref<Texture> menu_hl = get_theme_icon("menu_highlight");
Ref<Font> font = get_theme_font("font");
select_font(font);
Color font_color_fg = get_theme_color("font_color_fg");
Color font_color_bg = get_theme_color("font_color_bg");
Color font_color_disabled = get_theme_color("font_color_disabled");
int side_margin = get_theme_constant("side_margin");
// Find out start and width of the header area.
int header_x = side_margin;
int header_width = size.width - side_margin * 2;
int header_height = _get_top_margin();
Popup *popup = get_popup();
if (popup) {
header_width -= menu->get_width();
}
// Check if all tabs would fit into the header area.
int all_tabs_width = 0;
for (int i = 0; i < tabs.size(); i++) {
if (get_tab_hidden(i)) {
continue;
}
int tab_width = _get_tab_width(i);
all_tabs_width += tab_width;
if (all_tabs_width > header_width) {
// Not all tabs are visible at the same time - reserve space for navigation buttons.
buttons_visible_cache = true;
header_width -= decrement->get_width() + increment->get_width();
break;
} else {
buttons_visible_cache = false;
}
}
// With buttons, a right side margin does not need to be respected.
if (popup || buttons_visible_cache) {
header_width += side_margin;
}
if (!buttons_visible_cache) {
first_tab_cache = 0;
}
// Go through the visible tabs to find the width they occupy.
all_tabs_width = 0;
Vector<int> tab_widths;
for (int i = first_tab_cache; i < tabs.size(); i++) {
if (get_tab_hidden(i)) {
tab_widths.push_back(0);
continue;
}
int tab_width = _get_tab_width(i);
if (all_tabs_width + tab_width > header_width && tab_widths.size() > 0) {
break;
}
all_tabs_width += tab_width;
tab_widths.push_back(tab_width);
}
// Find the offset at which to draw tabs, according to the alignment.
switch (align) {
case ALIGN_LEFT:
tabs_ofs_cache = header_x;
break;
case ALIGN_CENTER:
tabs_ofs_cache = header_x + (header_width / 2) - (all_tabs_width / 2);
break;
case ALIGN_RIGHT:
tabs_ofs_cache = header_x + header_width - all_tabs_width;
break;
}
if (all_tabs_in_front) {
// Draw the tab area.
panel->draw(canvas, Rect2(0, header_height, size.width, size.height - header_height));
}
// Draw unselected tabs in back
int x = 0;
int x_current = 0;
int index = 0;
for (int i = 0; i < tab_widths.size(); i++) {
index = i + first_tab_cache;
if (get_tab_hidden(index)) {
continue;
}
int tab_width = tab_widths[i];
if (index == current) {
x_current = x;
} else if (get_tab_disabled(index)) {
_draw_tab(tab_disabled, font_color_disabled, index, tabs_ofs_cache + x);
} else {
_draw_tab(tab_bg, font_color_bg, index, tabs_ofs_cache + x);
}
x += tab_width;
last_tab_cache = index;
}
if (!all_tabs_in_front) {
// Draw the tab area.
panel->draw(canvas, Rect2(0, header_height, size.width, size.height - header_height));
}
// Draw selected tab in front. Only draw selected tab when it's in visible range.
if (tabs.size() > 0 && current - first_tab_cache < tab_widths.size() && current >= first_tab_cache) {
Ref<StyleBox> current_style_box = get_tab_disabled(current) ? tab_disabled : tab_fg;
_draw_tab(current_style_box, font_color_fg, current, tabs_ofs_cache + x_current);
}
// Draw the popup menu.
x = get_size().width;
if (popup) {
x -= menu->get_width();
if (menu_hovered) {
menu_hl->draw(get_canvas_item(), Size2(x, (header_height - menu_hl->get_height()) / 2));
} else {
menu->draw(get_canvas_item(), Size2(x, (header_height - menu->get_height()) / 2));
}
}
// Draw the navigation buttons.
if (buttons_visible_cache) {
x -= increment->get_width();
if (last_tab_cache < tabs.size() - 1) {
draw_texture(highlight_arrow == 1 ? increment_hl : increment, Point2(x, (header_height - increment->get_height()) / 2));
} else {
draw_texture(increment, Point2(x, (header_height - increment->get_height()) / 2), Color(1, 1, 1, 0.5));
}
x -= decrement->get_width();
if (first_tab_cache > 0) {
draw_texture(highlight_arrow == 0 ? decrement_hl : decrement, Point2(x, (header_height - decrement->get_height()) / 2));
} else {
draw_texture(decrement, Point2(x, (header_height - decrement->get_height()) / 2), Color(1, 1, 1, 0.5));
}
}
} break;
case NOTIFICATION_THEME_CHANGED: {
minimum_size_changed();
call_deferred("_on_theme_changed"); // Wait until all changed theme.
} break;
}
}
void TabContainer::_draw_tab(Ref<StyleBox> &p_tab_style, Color &p_font_color, int p_index, float p_x) {
Control *control = get_tab_control(p_index);
RID canvas = get_canvas_item();
Ref<Font> font = get_theme_font("font");
int icon_text_distance = get_theme_constant("hseparation");
int tab_width = _get_tab_width(p_index);
int header_height = _get_top_margin();
// Draw the tab background.
Rect2 tab_rect(p_x, 0, tab_width, header_height);
p_tab_style->draw(canvas, tab_rect);
// Draw the tab contents.
String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
int x_content = tab_rect.position.x + p_tab_style->get_margin(MARGIN_LEFT);
int top_margin = p_tab_style->get_margin(MARGIN_TOP);
int y_center = top_margin + (tab_rect.size.y - p_tab_style->get_minimum_size().y) / 2;
// Draw the tab icon.
if (control->has_meta("_tab_icon")) {
Ref<Texture> icon = control->get_meta("_tab_icon");
if (icon.is_valid()) {
int y = y_center - (icon->get_height() / 2);
icon->draw(canvas, Point2i(x_content, y));
if (text != "") {
x_content += icon->get_width() + icon_text_distance;
}
}
}
// Draw the tab text.
Point2i text_pos(x_content, y_center - (font->get_height() / 2) + font->get_ascent());
font->draw(canvas, text_pos, text, p_font_color);
}
void TabContainer::_on_theme_changed() {
if (get_tab_count() > 0) {
_repaint();
update();
}
}
void TabContainer::_repaint() {
Ref<StyleBox> sb = get_theme_stylebox("panel");
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (i == current) {
c->show();
c->set_anchors_and_margins_preset(Control::PRESET_WIDE);
if (tabs_visible) {
c->set_margin(MARGIN_TOP, _get_top_margin());
}
c->set_margin(MARGIN_TOP, c->get_margin(MARGIN_TOP) + sb->get_margin(MARGIN_TOP));
c->set_margin(MARGIN_LEFT, c->get_margin(MARGIN_LEFT) + sb->get_margin(MARGIN_LEFT));
c->set_margin(MARGIN_RIGHT, c->get_margin(MARGIN_RIGHT) - sb->get_margin(MARGIN_RIGHT));
c->set_margin(MARGIN_BOTTOM, c->get_margin(MARGIN_BOTTOM) - sb->get_margin(MARGIN_BOTTOM));
} else {
c->hide();
}
}
}
void TabContainer::_on_mouse_exited() {
if (menu_hovered || highlight_arrow > -1) {
menu_hovered = false;
highlight_arrow = -1;
update();
}
}
int TabContainer::_get_tab_width(int p_index) const {
ERR_FAIL_INDEX_V(p_index, get_tab_count(), 0);
Control *control = get_tab_control(p_index);
if (!control || get_tab_hidden(p_index)) {
return 0;
}
// Get the width of the text displayed on the tab.
Ref<Font> font = get_theme_font("font");
String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(tr(control->get_name()));
int width = font->get_string_size(text).width;
// Add space for a tab icon.
if (control->has_meta("_tab_icon")) {
Ref<Texture> icon = control->get_meta("_tab_icon");
if (icon.is_valid()) {
width += icon->get_width();
if (text != "") {
width += get_theme_constant("hseparation");
}
}
}
// Respect a minimum size.
Ref<StyleBox> tab_bg = get_theme_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_theme_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_theme_stylebox("tab_disabled");
if (get_tab_disabled(p_index)) {
width += tab_disabled->get_minimum_size().width;
} else if (p_index == current) {
width += tab_fg->get_minimum_size().width;
} else {
width += tab_bg->get_minimum_size().width;
}
return width;
}
Vector<Control *> TabContainer::_get_tabs() const {
Vector<Control *> controls;
for (int i = 0; i < get_child_count(); i++) {
Control *control = Object::cast_to<Control>(get_child(i));
if (!control || control->is_set_as_toplevel()) {
continue;
}
controls.push_back(control);
}
return controls;
}
void TabContainer::_child_renamed_callback() {
update();
}
void TabContainer::add_child_notify(Node *p_child) {
Container::add_child_notify(p_child);
Control *c = Object::cast_to<Control>(p_child);
if (!c || c->is_set_as_toplevel()) {
return;
}
call_deferred("_repaint");
update();
bool first = (get_tab_count() == 1);
if (first) {
current = 0;
previous = 0;
}
p_child->connect("renamed", this, "_child_renamed_callback");
if (first) {
emit_signal("tab_changed", current);
}
}
void TabContainer::move_child_notify(Node *p_child) {
Container::move_child_notify(p_child);
Control *c = Object::cast_to<Control>(p_child);
if (!c || c->is_set_as_toplevel()) {
return;
}
_update_current_tab();
update();
}
int TabContainer::get_tab_count() const {
return _get_tabs().size();
}
void TabContainer::set_current_tab(int p_current) {
ERR_FAIL_INDEX(p_current, get_tab_count());
int pending_previous = current;
current = p_current;
_repaint();
_change_notify("current_tab");
if (pending_previous == current) {
emit_signal("tab_selected", current);
} else {
previous = pending_previous;
emit_signal("tab_selected", current);
emit_signal("tab_changed", current);
}
update();
}
int TabContainer::get_current_tab() const {
return current;
}
int TabContainer::get_previous_tab() const {
return previous;
}
Control *TabContainer::get_tab_control(int p_idx) const {
Vector<Control *> tabs = _get_tabs();
if (p_idx >= 0 && p_idx < tabs.size()) {
return tabs[p_idx];
} else {
return nullptr;
}
}
Control *TabContainer::get_current_tab_control() const {
return get_tab_control(current);
}
void TabContainer::remove_child_notify(Node *p_child) {
Container::remove_child_notify(p_child);
Control *c = Object::cast_to<Control>(p_child);
if (!c || c->is_set_as_toplevel()) {
return;
}
// Defer the call because tab is not yet removed (remove_child_notify is called right before p_child is actually removed).
call_deferred("_update_current_tab");
p_child->disconnect("renamed", this, "_child_renamed_callback");
update();
}
void TabContainer::_update_current_tab() {
int tc = get_tab_count();
if (current >= tc) {
current = tc - 1;
}
if (current < 0) {
current = 0;
} else {
set_current_tab(current);
}
}
Variant TabContainer::get_drag_data(const Point2 &p_point) {
if (!drag_to_rearrange_enabled) {
return Variant();
}
int tab_over = get_tab_idx_at_point(p_point);
if (tab_over < 0) {
return Variant();
}
HBoxContainer *drag_preview = memnew(HBoxContainer);
Ref<Texture> icon = get_tab_icon(tab_over);
if (!icon.is_null()) {
TextureRect *tf = memnew(TextureRect);
tf->set_texture(icon);
drag_preview->add_child(tf);
}
Label *label = memnew(Label(get_tab_title(tab_over)));
drag_preview->add_child(label);
set_drag_preview(drag_preview);
Dictionary drag_data;
drag_data["type"] = "tabc_element";
drag_data["tabc_element"] = tab_over;
drag_data["from_path"] = get_path();
return drag_data;
}
bool TabContainer::can_drop_data(const Point2 &p_point, const Variant &p_data) const {
if (!drag_to_rearrange_enabled) {
return false;
}
Dictionary d = p_data;
if (!d.has("type")) {
return false;
}
if (String(d["type"]) == "tabc_element") {
NodePath from_path = d["from_path"];
NodePath to_path = get_path();
if (from_path == to_path) {
return true;
} else if (get_tabs_rearrange_group() != -1) {
// drag and drop between other TabContainers
Node *from_node = get_node(from_path);
TabContainer *from_tabc = Object::cast_to<TabContainer>(from_node);
if (from_tabc && from_tabc->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {
return true;
}
}
}
return false;
}
void TabContainer::drop_data(const Point2 &p_point, const Variant &p_data) {
if (!drag_to_rearrange_enabled) {
return;
}
int hover_now = get_tab_idx_at_point(p_point);
Dictionary d = p_data;
if (!d.has("type")) {
return;
}
if (String(d["type"]) == "tabc_element") {
int tab_from_id = d["tabc_element"];
NodePath from_path = d["from_path"];
NodePath to_path = get_path();
if (from_path == to_path) {
if (hover_now < 0) {
hover_now = get_tab_count() - 1;
}
move_child(get_tab_control(tab_from_id), get_tab_control(hover_now)->get_index());
set_current_tab(hover_now);
} else if (get_tabs_rearrange_group() != -1) {
// drag and drop between TabContainers
Node *from_node = get_node(from_path);
TabContainer *from_tabc = Object::cast_to<TabContainer>(from_node);
if (from_tabc && from_tabc->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {
Control *moving_tabc = from_tabc->get_tab_control(tab_from_id);
from_tabc->remove_child(moving_tabc);
add_child(moving_tabc);
if (hover_now < 0) {
hover_now = get_tab_count() - 1;
}
move_child(moving_tabc, get_tab_control(hover_now)->get_index());
set_current_tab(hover_now);
emit_signal("tab_changed", hover_now);
}
}
}
update();
}
int TabContainer::get_tab_idx_at_point(const Point2 &p_point) const {
if (get_tab_count() == 0) {
return -1;
}
// must be on tabs in the tab header area.
if (p_point.x < tabs_ofs_cache || p_point.y > _get_top_margin()) {
return -1;
}
Size2 size = get_size();
int right_ofs = 0;
Popup *popup = get_popup();
if (popup) {
Ref<Texture> menu = get_theme_icon("menu");
right_ofs += menu->get_width();
}
if (buttons_visible_cache) {
Ref<Texture> increment = get_theme_icon("increment");
Ref<Texture> decrement = get_theme_icon("decrement");
right_ofs += increment->get_width() + decrement->get_width();
}
if (p_point.x > size.width - right_ofs) {
return -1;
}
// get the tab at the point
Vector<Control *> tabs = _get_tabs();
int px = p_point.x;
px -= tabs_ofs_cache;
for (int i = first_tab_cache; i <= last_tab_cache; i++) {
int tab_width = _get_tab_width(i);
if (px < tab_width) {
return i;
}
px -= tab_width;
}
return -1;
}
void TabContainer::set_tab_align(TabAlign p_align) {
ERR_FAIL_INDEX(p_align, 3);
align = p_align;
update();
_change_notify("tab_align");
}
TabContainer::TabAlign TabContainer::get_tab_align() const {
return align;
}
void TabContainer::set_tabs_visible(bool p_visible) {
if (p_visible == tabs_visible) {
return;
}
tabs_visible = p_visible;
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (p_visible) {
c->set_margin(MARGIN_TOP, _get_top_margin());
} else {
c->set_margin(MARGIN_TOP, 0);
}
}
update();
minimum_size_changed();
}
bool TabContainer::are_tabs_visible() const {
return tabs_visible;
}
void TabContainer::set_all_tabs_in_front(bool p_in_front) {
if (p_in_front == all_tabs_in_front) {
return;
}
all_tabs_in_front = p_in_front;
update();
}
bool TabContainer::is_all_tabs_in_front() const {
return all_tabs_in_front;
}
void TabContainer::set_tab_title(int p_tab, const String &p_title) {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_name", p_title);
update();
}
String TabContainer::get_tab_title(int p_tab) const {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND_V(!child, "");
if (child->has_meta("_tab_name")) {
return child->get_meta("_tab_name");
} else {
return child->get_name();
}
}
void TabContainer::set_tab_icon(int p_tab, const Ref<Texture> &p_icon) {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_icon", p_icon);
_repaint();
update();
}
Ref<Texture> TabContainer::get_tab_icon(int p_tab) const {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND_V(!child, Ref<Texture>());
if (child->has_meta("_tab_icon")) {
return child->get_meta("_tab_icon");
} else {
return Ref<Texture>();
}
}
void TabContainer::set_tab_disabled(int p_tab, bool p_disabled) {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_disabled", p_disabled);
update();
}
bool TabContainer::get_tab_disabled(int p_tab) const {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND_V(!child, false);
if (child->has_meta("_tab_disabled")) {
return child->get_meta("_tab_disabled");
} else {
return false;
}
}
void TabContainer::set_tab_hidden(int p_tab, bool p_hidden) {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_hidden", p_hidden);
update();
for (int i = 0; i < get_tab_count(); i++) {
int try_tab = (p_tab + 1 + i) % get_tab_count();
if (get_tab_disabled(try_tab) || get_tab_hidden(try_tab)) {
continue;
}
set_current_tab(try_tab);
return;
}
//assumed no other tab can be switched to, just hide
child->hide();
}
bool TabContainer::get_tab_hidden(int p_tab) const {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND_V(!child, false);
if (child->has_meta("_tab_hidden")) {
return child->get_meta("_tab_hidden");
} else {
return false;
}
}
void TabContainer::set_tab_metadata(int p_tab, const Variant &p_metadata) {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_metadata", p_metadata);
}
Variant TabContainer::get_tab_metadata(int p_tab) const {
Control *child = get_tab_control(p_tab);
ERR_FAIL_COND_V(!child, Variant());
if (child->has_meta("_tab_metadata")) {
return child->get_meta("_tab_metadata");
} else {
return Variant();
}
}
void TabContainer::get_translatable_strings(List<String> *p_strings) const {
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (!c->has_meta("_tab_name")) {
continue;
}
String name = c->get_meta("_tab_name");
if (name != "") {
p_strings->push_back(name);
}
}
}
Size2 TabContainer::get_minimum_size() const {
Size2 ms;
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (!c->is_visible_in_tree() && !use_hidden_tabs_for_min_size) {
continue;
}
Size2 cms = c->get_combined_minimum_size();
ms.x = MAX(ms.x, cms.x);
ms.y = MAX(ms.y, cms.y);
}
Ref<StyleBox> tab_bg = get_theme_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_theme_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_theme_stylebox("tab_disabled");
Ref<Font> font = get_theme_font("font");
if (tabs_visible) {
ms.y += MAX(MAX(tab_bg->get_minimum_size().y, tab_fg->get_minimum_size().y), tab_disabled->get_minimum_size().y);
ms.y += font->get_height();
}
Ref<StyleBox> sb = get_theme_stylebox("panel");
ms += sb->get_minimum_size();
return ms;
}
void TabContainer::set_popup(Node *p_popup) {
ERR_FAIL_NULL(p_popup);
Popup *popup = Object::cast_to<Popup>(p_popup);
popup_obj_id = popup ? popup->get_instance_id() : 0;
update();
}
Popup *TabContainer::get_popup() const {
if (popup_obj_id) {
Popup *popup = Object::cast_to<Popup>(ObjectDB::get_instance(popup_obj_id));
if (popup) {
return popup;
} else {
#ifdef DEBUG_ENABLED
ERR_PRINT("Popup assigned to TabContainer is gone!");
#endif
popup_obj_id = 0;
}
}
return nullptr;
}
void TabContainer::set_drag_to_rearrange_enabled(bool p_enabled) {
drag_to_rearrange_enabled = p_enabled;
}
bool TabContainer::get_drag_to_rearrange_enabled() const {
return drag_to_rearrange_enabled;
}
void TabContainer::set_tabs_rearrange_group(int p_group_id) {
tabs_rearrange_group = p_group_id;
}
int TabContainer::get_tabs_rearrange_group() const {
return tabs_rearrange_group;
}
void TabContainer::set_use_hidden_tabs_for_min_size(bool p_use_hidden_tabs) {
use_hidden_tabs_for_min_size = p_use_hidden_tabs;
}
bool TabContainer::get_use_hidden_tabs_for_min_size() const {
return use_hidden_tabs_for_min_size;
}
void TabContainer::_bind_methods() {
ClassDB::bind_method(D_METHOD("_gui_input"), &TabContainer::_gui_input);
ClassDB::bind_method(D_METHOD("get_tab_count"), &TabContainer::get_tab_count);
ClassDB::bind_method(D_METHOD("set_current_tab", "tab_idx"), &TabContainer::set_current_tab);
ClassDB::bind_method(D_METHOD("get_current_tab"), &TabContainer::get_current_tab);
ClassDB::bind_method(D_METHOD("get_previous_tab"), &TabContainer::get_previous_tab);
ClassDB::bind_method(D_METHOD("get_current_tab_control"), &TabContainer::get_current_tab_control);
ClassDB::bind_method(D_METHOD("get_tab_control", "tab_idx"), &TabContainer::get_tab_control);
ClassDB::bind_method(D_METHOD("set_tab_align", "align"), &TabContainer::set_tab_align);
ClassDB::bind_method(D_METHOD("get_tab_align"), &TabContainer::get_tab_align);
ClassDB::bind_method(D_METHOD("set_tabs_visible", "visible"), &TabContainer::set_tabs_visible);
ClassDB::bind_method(D_METHOD("are_tabs_visible"), &TabContainer::are_tabs_visible);
ClassDB::bind_method(D_METHOD("set_all_tabs_in_front", "is_front"), &TabContainer::set_all_tabs_in_front);
ClassDB::bind_method(D_METHOD("is_all_tabs_in_front"), &TabContainer::is_all_tabs_in_front);
ClassDB::bind_method(D_METHOD("set_tab_title", "tab_idx", "title"), &TabContainer::set_tab_title);
ClassDB::bind_method(D_METHOD("get_tab_title", "tab_idx"), &TabContainer::get_tab_title);
ClassDB::bind_method(D_METHOD("set_tab_icon", "tab_idx", "icon"), &TabContainer::set_tab_icon);
ClassDB::bind_method(D_METHOD("get_tab_icon", "tab_idx"), &TabContainer::get_tab_icon);
ClassDB::bind_method(D_METHOD("set_tab_disabled", "tab_idx", "disabled"), &TabContainer::set_tab_disabled);
ClassDB::bind_method(D_METHOD("get_tab_disabled", "tab_idx"), &TabContainer::get_tab_disabled);
ClassDB::bind_method(D_METHOD("set_tab_hidden", "tab_idx", "hidden"), &TabContainer::set_tab_hidden);
ClassDB::bind_method(D_METHOD("get_tab_hidden", "tab_idx"), &TabContainer::get_tab_hidden);
ClassDB::bind_method(D_METHOD("set_tab_metadata", "tab_idx", "metadata"), &TabContainer::set_tab_metadata);
ClassDB::bind_method(D_METHOD("get_tab_metadata", "tab_idx"), &TabContainer::get_tab_metadata);
ClassDB::bind_method(D_METHOD("get_tab_idx_at_point", "point"), &TabContainer::get_tab_idx_at_point);
ClassDB::bind_method(D_METHOD("set_popup", "popup"), &TabContainer::set_popup);
ClassDB::bind_method(D_METHOD("get_popup"), &TabContainer::get_popup);
ClassDB::bind_method(D_METHOD("set_drag_to_rearrange_enabled", "enabled"), &TabContainer::set_drag_to_rearrange_enabled);
ClassDB::bind_method(D_METHOD("get_drag_to_rearrange_enabled"), &TabContainer::get_drag_to_rearrange_enabled);
ClassDB::bind_method(D_METHOD("set_tabs_rearrange_group", "group_id"), &TabContainer::set_tabs_rearrange_group);
ClassDB::bind_method(D_METHOD("get_tabs_rearrange_group"), &TabContainer::get_tabs_rearrange_group);
ClassDB::bind_method(D_METHOD("set_use_hidden_tabs_for_min_size", "enabled"), &TabContainer::set_use_hidden_tabs_for_min_size);
ClassDB::bind_method(D_METHOD("get_use_hidden_tabs_for_min_size"), &TabContainer::get_use_hidden_tabs_for_min_size);
ClassDB::bind_method(D_METHOD("_child_renamed_callback"), &TabContainer::_child_renamed_callback);
ClassDB::bind_method(D_METHOD("_repaint"), &TabContainer::_repaint);
ClassDB::bind_method(D_METHOD("_on_theme_changed"), &TabContainer::_on_theme_changed);
ClassDB::bind_method(D_METHOD("_on_mouse_exited"), &TabContainer::_on_mouse_exited);
ClassDB::bind_method(D_METHOD("_update_current_tab"), &TabContainer::_update_current_tab);
ADD_SIGNAL(MethodInfo("tab_changed", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("tab_selected", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("pre_popup_pressed"));
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_align", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_tab_align", "get_tab_align");
ADD_PROPERTY(PropertyInfo(Variant::INT, "current_tab", PROPERTY_HINT_RANGE, "-1,4096,1", PROPERTY_USAGE_EDITOR), "set_current_tab", "get_current_tab");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "tabs_visible"), "set_tabs_visible", "are_tabs_visible");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "all_tabs_in_front"), "set_all_tabs_in_front", "is_all_tabs_in_front");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "drag_to_rearrange_enabled"), "set_drag_to_rearrange_enabled", "get_drag_to_rearrange_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "use_hidden_tabs_for_min_size"), "set_use_hidden_tabs_for_min_size", "get_use_hidden_tabs_for_min_size");
BIND_ENUM_CONSTANT(ALIGN_LEFT);
BIND_ENUM_CONSTANT(ALIGN_CENTER);
BIND_ENUM_CONSTANT(ALIGN_RIGHT);
}
TabContainer::TabContainer() {
first_tab_cache = 0;
last_tab_cache = 0;
buttons_visible_cache = false;
menu_hovered = false;
highlight_arrow = -1;
tabs_ofs_cache = 0;
current = 0;
previous = 0;
align = ALIGN_CENTER;
tabs_visible = true;
popup_obj_id = 0;
all_tabs_in_front = false;
drag_to_rearrange_enabled = false;
tabs_rearrange_group = -1;
use_hidden_tabs_for_min_size = false;
connect("mouse_exited", this, "_on_mouse_exited");
}
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