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godot/scene/gui/tabs.cpp
Rémi Verschelde a7f49ac9a1 Update copyright statements to 2020 
Happy new year to the wonderful Godot community!

We're starting a new decade with a well-established, non-profit, free
and open source game engine, and tons of further improvements in the
pipeline from hundreds of contributors.

Godot will keep getting better, and we're looking forward to all the
games that the community will keep developing and releasing with it.
2020-01-01 11:16:22 +01:00

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/*************************************************************************/
/* tabs.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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 "tabs.h"
#include "core/message_queue.h"
#include "scene/gui/box_container.h"
#include "scene/gui/label.h"
#include "scene/gui/texture_rect.h"
Size2 Tabs::get_minimum_size() const {
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_stylebox("tab_disabled");
Ref<Font> font = get_font("font");
Size2 ms(0, MAX(MAX(tab_bg->get_minimum_size().height, tab_fg->get_minimum_size().height), tab_disabled->get_minimum_size().height) + font->get_height());
for (int i = 0; i < tabs.size(); i++) {
Ref<Texture> tex = tabs[i].icon;
if (tex.is_valid()) {
ms.height = MAX(ms.height, tex->get_size().height);
if (tabs[i].text != "")
ms.width += get_constant("hseparation");
}
ms.width += Math::ceil(font->get_string_size(tabs[i].xl_text).width);
if (tabs[i].disabled)
ms.width += tab_disabled->get_minimum_size().width;
else if (current == i)
ms.width += tab_fg->get_minimum_size().width;
else
ms.width += tab_bg->get_minimum_size().width;
if (tabs[i].right_button.is_valid()) {
Ref<Texture> rb = tabs[i].right_button;
Size2 bms = rb->get_size();
bms.width += get_constant("hseparation");
ms.width += bms.width;
ms.height = MAX(bms.height + tab_bg->get_minimum_size().height, ms.height);
}
if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
Ref<Texture> cb = get_icon("close");
Size2 bms = cb->get_size();
bms.width += get_constant("hseparation");
ms.width += bms.width;
ms.height = MAX(bms.height + tab_bg->get_minimum_size().height, ms.height);
}
}
ms.width = 0; //TODO: should make this optional
return ms;
}
void Tabs::_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventMouseMotion> mm = p_event;
if (mm.is_valid()) {
Point2 pos = mm->get_position();
highlight_arrow = -1;
if (buttons_visible) {
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
if (pos.x > limit + decr->get_width()) {
highlight_arrow = 1;
} else if (pos.x > limit) {
highlight_arrow = 0;
}
}
_update_hover();
update();
return;
}
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid()) {
if (mb->is_pressed() && mb->get_button_index() == BUTTON_WHEEL_UP && !mb->get_command()) {
if (scrolling_enabled && buttons_visible) {
if (offset > 0) {
offset--;
update();
}
}
}
if (mb->is_pressed() && mb->get_button_index() == BUTTON_WHEEL_DOWN && !mb->get_command()) {
if (scrolling_enabled && buttons_visible) {
if (missing_right) {
offset++;
update();
}
}
}
if (rb_pressing && !mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
if (rb_hover != -1) {
//pressed
emit_signal("right_button_pressed", rb_hover);
}
rb_pressing = false;
update();
}
if (cb_pressing && !mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
if (cb_hover != -1) {
//pressed
emit_signal("tab_close", cb_hover);
}
cb_pressing = false;
update();
}
if (mb->is_pressed() && (mb->get_button_index() == BUTTON_LEFT || (select_with_rmb && mb->get_button_index() == BUTTON_RIGHT))) {
// clicks
Point2 pos(mb->get_position().x, mb->get_position().y);
if (buttons_visible) {
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
if (pos.x > limit + decr->get_width()) {
if (missing_right) {
offset++;
update();
}
return;
} else if (pos.x > limit) {
if (offset > 0) {
offset--;
update();
}
return;
}
}
int found = -1;
for (int i = 0; i < tabs.size(); i++) {
if (i < offset)
continue;
if (tabs[i].rb_rect.has_point(pos)) {
rb_pressing = true;
update();
return;
}
if (tabs[i].cb_rect.has_point(pos)) {
cb_pressing = true;
update();
return;
}
if (pos.x >= tabs[i].ofs_cache && pos.x < tabs[i].ofs_cache + tabs[i].size_cache) {
if (!tabs[i].disabled) {
found = i;
}
break;
}
}
if (found != -1) {
set_current_tab(found);
emit_signal("tab_clicked", found);
}
}
}
}
void Tabs::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_TRANSLATION_CHANGED: {
for (int i = 0; i < tabs.size(); ++i) {
tabs.write[i].xl_text = tr(tabs[i].text);
}
minimum_size_changed();
update();
} break;
case NOTIFICATION_RESIZED: {
_update_cache();
_ensure_no_over_offset();
ensure_tab_visible(current);
} break;
case NOTIFICATION_DRAW: {
_update_cache();
RID ci = get_canvas_item();
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_stylebox("tab_disabled");
Ref<Font> font = get_font("font");
Color color_fg = get_color("font_color_fg");
Color color_bg = get_color("font_color_bg");
Color color_disabled = get_color("font_color_disabled");
Ref<Texture> close = get_icon("close");
int h = get_size().height;
int w = 0;
int mw = 0;
for (int i = 0; i < tabs.size(); i++) {
tabs.write[i].ofs_cache = mw;
mw += get_tab_width(i);
}
if (tab_align == ALIGN_CENTER) {
w = (get_size().width - mw) / 2;
} else if (tab_align == ALIGN_RIGHT) {
w = get_size().width - mw;
}
if (w < 0) {
w = 0;
}
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
Ref<Texture> incr_hl = get_icon("increment_highlight");
Ref<Texture> decr_hl = get_icon("decrement_highlight");
int limit = get_size().width - incr->get_size().width - decr->get_size().width;
missing_right = false;
for (int i = 0; i < tabs.size(); i++) {
if (i < offset)
continue;
tabs.write[i].ofs_cache = w;
int lsize = tabs[i].size_cache;
Ref<StyleBox> sb;
Color col;
if (tabs[i].disabled) {
sb = tab_disabled;
col = color_disabled;
} else if (i == current) {
sb = tab_fg;
col = color_fg;
} else {
sb = tab_bg;
col = color_bg;
}
if (w + lsize > limit) {
max_drawn_tab = i - 1;
missing_right = true;
break;
} else {
max_drawn_tab = i;
}
Rect2 sb_rect = Rect2(w, 0, tabs[i].size_cache, h);
sb->draw(ci, sb_rect);
w += sb->get_margin(MARGIN_LEFT);
Size2i sb_ms = sb->get_minimum_size();
Ref<Texture> icon = tabs[i].icon;
if (icon.is_valid()) {
icon->draw(ci, Point2i(w, sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - icon->get_height()) / 2));
if (tabs[i].text != "")
w += icon->get_width() + get_constant("hseparation");
}
font->draw(ci, Point2i(w, sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - font->get_height()) / 2 + font->get_ascent()), tabs[i].xl_text, col, tabs[i].size_text);
w += tabs[i].size_text;
if (tabs[i].right_button.is_valid()) {
Ref<StyleBox> style = get_stylebox("button");
Ref<Texture> rb = tabs[i].right_button;
w += get_constant("hseparation");
Rect2 rb_rect;
rb_rect.size = style->get_minimum_size() + rb->get_size();
rb_rect.position.x = w;
rb_rect.position.y = sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - (rb_rect.size.y)) / 2;
if (rb_hover == i) {
if (rb_pressing)
get_stylebox("button_pressed")->draw(ci, rb_rect);
else
style->draw(ci, rb_rect);
}
rb->draw(ci, Point2i(w + style->get_margin(MARGIN_LEFT), rb_rect.position.y + style->get_margin(MARGIN_TOP)));
w += rb->get_width();
tabs.write[i].rb_rect = rb_rect;
}
if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
Ref<StyleBox> style = get_stylebox("button");
Ref<Texture> cb = close;
w += get_constant("hseparation");
Rect2 cb_rect;
cb_rect.size = style->get_minimum_size() + cb->get_size();
cb_rect.position.x = w;
cb_rect.position.y = sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - (cb_rect.size.y)) / 2;
if (!tabs[i].disabled && cb_hover == i) {
if (cb_pressing)
get_stylebox("button_pressed")->draw(ci, cb_rect);
else
style->draw(ci, cb_rect);
}
cb->draw(ci, Point2i(w + style->get_margin(MARGIN_LEFT), cb_rect.position.y + style->get_margin(MARGIN_TOP)));
w += cb->get_width();
tabs.write[i].cb_rect = cb_rect;
}
w += sb->get_margin(MARGIN_RIGHT);
}
if (offset > 0 || missing_right) {
int vofs = (get_size().height - incr->get_size().height) / 2;
if (offset > 0)
draw_texture(highlight_arrow == 0 ? decr_hl : decr, Point2(limit, vofs));
else
draw_texture(decr, Point2(limit, vofs), Color(1, 1, 1, 0.5));
if (missing_right)
draw_texture(highlight_arrow == 1 ? incr_hl : incr, Point2(limit + decr->get_size().width, vofs));
else
draw_texture(incr, Point2(limit + decr->get_size().width, vofs), Color(1, 1, 1, 0.5));
buttons_visible = true;
} else {
buttons_visible = false;
}
} break;
}
}
int Tabs::get_tab_count() const {
return tabs.size();
}
void Tabs::set_current_tab(int p_current) {
if (current == p_current) return;
ERR_FAIL_INDEX(p_current, get_tab_count());
current = p_current;
_change_notify("current_tab");
_update_cache();
update();
emit_signal("tab_changed", p_current);
}
int Tabs::get_current_tab() const {
return current;
}
int Tabs::get_hovered_tab() const {
return hover;
}
int Tabs::get_tab_offset() const {
return offset;
}
bool Tabs::get_offset_buttons_visible() const {
return buttons_visible;
}
void Tabs::set_tab_title(int p_tab, const String &p_title) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].text = p_title;
tabs.write[p_tab].xl_text = tr(p_title);
update();
minimum_size_changed();
}
String Tabs::get_tab_title(int p_tab) const {
ERR_FAIL_INDEX_V(p_tab, tabs.size(), "");
return tabs[p_tab].text;
}
void Tabs::set_tab_icon(int p_tab, const Ref<Texture> &p_icon) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].icon = p_icon;
update();
minimum_size_changed();
}
Ref<Texture> Tabs::get_tab_icon(int p_tab) const {
ERR_FAIL_INDEX_V(p_tab, tabs.size(), Ref<Texture>());
return tabs[p_tab].icon;
}
void Tabs::set_tab_disabled(int p_tab, bool p_disabled) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].disabled = p_disabled;
update();
}
bool Tabs::get_tab_disabled(int p_tab) const {
ERR_FAIL_INDEX_V(p_tab, tabs.size(), false);
return tabs[p_tab].disabled;
}
void Tabs::set_tab_right_button(int p_tab, const Ref<Texture> &p_right_button) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].right_button = p_right_button;
_update_cache();
update();
minimum_size_changed();
}
Ref<Texture> Tabs::get_tab_right_button(int p_tab) const {
ERR_FAIL_INDEX_V(p_tab, tabs.size(), Ref<Texture>());
return tabs[p_tab].right_button;
}
void Tabs::_update_hover() {
if (!is_inside_tree()) {
return;
}
const Point2 &pos = get_local_mouse_position();
// test hovering to display right or close button
int hover_now = -1;
int hover_buttons = -1;
for (int i = 0; i < tabs.size(); i++) {
if (i < offset)
continue;
Rect2 rect = get_tab_rect(i);
if (rect.has_point(pos)) {
hover_now = i;
}
if (tabs[i].rb_rect.has_point(pos)) {
rb_hover = i;
cb_hover = -1;
hover_buttons = i;
break;
} else if (!tabs[i].disabled && tabs[i].cb_rect.has_point(pos)) {
cb_hover = i;
rb_hover = -1;
hover_buttons = i;
break;
}
}
if (hover != hover_now) {
hover = hover_now;
emit_signal("tab_hover", hover);
}
if (hover_buttons == -1) { // no hover
rb_hover = hover_buttons;
cb_hover = hover_buttons;
}
}
void Tabs::_update_cache() {
Ref<StyleBox> tab_disabled = get_stylebox("tab_disabled");
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Font> font = get_font("font");
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
int w = 0;
int mw = 0;
int size_fixed = 0;
int count_resize = 0;
for (int i = 0; i < tabs.size(); i++) {
tabs.write[i].ofs_cache = mw;
tabs.write[i].size_cache = get_tab_width(i);
tabs.write[i].size_text = Math::ceil(font->get_string_size(tabs[i].xl_text).width);
mw += tabs[i].size_cache;
if (tabs[i].size_cache <= min_width || i == current) {
size_fixed += tabs[i].size_cache;
} else {
count_resize++;
}
}
int m_width = min_width;
if (count_resize > 0) {
m_width = MAX((limit - size_fixed) / count_resize, min_width);
}
for (int i = 0; i < tabs.size(); i++) {
if (i < offset)
continue;
Ref<StyleBox> sb;
if (tabs[i].disabled) {
sb = tab_disabled;
} else if (i == current) {
sb = tab_fg;
} else {
sb = tab_bg;
}
int lsize = tabs[i].size_cache;
int slen = tabs[i].size_text;
if (min_width > 0 && mw > limit && i != current) {
if (lsize > m_width) {
slen = m_width - (sb->get_margin(MARGIN_LEFT) + sb->get_margin(MARGIN_RIGHT));
if (tabs[i].icon.is_valid()) {
slen -= tabs[i].icon->get_width();
slen -= get_constant("hseparation");
}
if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
Ref<Texture> cb = get_icon("close");
slen -= cb->get_width();
slen -= get_constant("hseparation");
}
slen = MAX(slen, 1);
lsize = m_width;
}
}
tabs.write[i].ofs_cache = w;
tabs.write[i].size_cache = lsize;
tabs.write[i].size_text = slen;
w += lsize;
}
}
void Tabs::_on_mouse_exited() {
rb_hover = -1;
cb_hover = -1;
hover = -1;
highlight_arrow = -1;
update();
}
void Tabs::add_tab(const String &p_str, const Ref<Texture> &p_icon) {
Tab t;
t.text = p_str;
t.xl_text = tr(p_str);
t.icon = p_icon;
t.disabled = false;
t.ofs_cache = 0;
t.size_cache = 0;
tabs.push_back(t);
_update_cache();
call_deferred("_update_hover");
update();
minimum_size_changed();
}
void Tabs::clear_tabs() {
tabs.clear();
current = 0;
call_deferred("_update_hover");
update();
}
void Tabs::remove_tab(int p_idx) {
ERR_FAIL_INDEX(p_idx, tabs.size());
tabs.remove(p_idx);
if (current >= p_idx)
current--;
_update_cache();
call_deferred("_update_hover");
update();
minimum_size_changed();
if (current < 0)
current = 0;
if (current >= tabs.size())
current = tabs.size() - 1;
_ensure_no_over_offset();
}
Variant Tabs::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);
if (!tabs[tab_over].icon.is_null()) {
TextureRect *tf = memnew(TextureRect);
tf->set_texture(tabs[tab_over].icon);
drag_preview->add_child(tf);
}
Label *label = memnew(Label(tabs[tab_over].xl_text));
drag_preview->add_child(label);
if (!tabs[tab_over].right_button.is_null()) {
TextureRect *tf = memnew(TextureRect);
tf->set_texture(tabs[tab_over].right_button);
drag_preview->add_child(tf);
}
set_drag_preview(drag_preview);
Dictionary drag_data;
drag_data["type"] = "tab_element";
drag_data["tab_element"] = tab_over;
drag_data["from_path"] = get_path();
return drag_data;
}
bool Tabs::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"]) == "tab_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 Tabs
Node *from_node = get_node(from_path);
Tabs *from_tabs = Object::cast_to<Tabs>(from_node);
if (from_tabs && from_tabs->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {
return true;
}
}
}
return false;
}
void Tabs::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"]) == "tab_element") {
int tab_from_id = d["tab_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_tab(tab_from_id, hover_now);
emit_signal("reposition_active_tab_request", hover_now);
set_current_tab(hover_now);
} else if (get_tabs_rearrange_group() != -1) {
// drag and drop between Tabs
Node *from_node = get_node(from_path);
Tabs *from_tabs = Object::cast_to<Tabs>(from_node);
if (from_tabs && from_tabs->get_tabs_rearrange_group() == get_tabs_rearrange_group()) {
if (tab_from_id >= from_tabs->get_tab_count())
return;
Tab moving_tab = from_tabs->tabs[tab_from_id];
if (hover_now < 0)
hover_now = get_tab_count();
tabs.insert(hover_now, moving_tab);
from_tabs->remove_tab(tab_from_id);
set_current_tab(hover_now);
emit_signal("tab_changed", hover_now);
_update_cache();
}
}
}
update();
}
int Tabs::get_tab_idx_at_point(const Point2 &p_point) const {
int hover_now = -1;
for (int i = 0; i < tabs.size(); i++) {
if (i < offset)
continue;
Rect2 rect = get_tab_rect(i);
if (rect.has_point(p_point)) {
hover_now = i;
}
}
return hover_now;
}
void Tabs::set_tab_align(TabAlign p_align) {
ERR_FAIL_INDEX(p_align, ALIGN_MAX);
tab_align = p_align;
update();
}
Tabs::TabAlign Tabs::get_tab_align() const {
return tab_align;
}
void Tabs::move_tab(int from, int to) {
if (from == to)
return;
ERR_FAIL_INDEX(from, tabs.size());
ERR_FAIL_INDEX(to, tabs.size());
Tab tab_from = tabs[from];
tabs.remove(from);
tabs.insert(to, tab_from);
_update_cache();
update();
}
int Tabs::get_tab_width(int p_idx) const {
ERR_FAIL_INDEX_V(p_idx, tabs.size(), 0);
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_stylebox("tab_disabled");
Ref<Font> font = get_font("font");
int x = 0;
Ref<Texture> tex = tabs[p_idx].icon;
if (tex.is_valid()) {
x += tex->get_width();
if (tabs[p_idx].text != "")
x += get_constant("hseparation");
}
x += Math::ceil(font->get_string_size(tabs[p_idx].xl_text).width);
if (tabs[p_idx].disabled)
x += tab_disabled->get_minimum_size().width;
else if (current == p_idx)
x += tab_fg->get_minimum_size().width;
else
x += tab_bg->get_minimum_size().width;
if (tabs[p_idx].right_button.is_valid()) {
Ref<Texture> rb = tabs[p_idx].right_button;
x += rb->get_width();
x += get_constant("hseparation");
}
if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && p_idx == current)) {
Ref<Texture> cb = get_icon("close");
x += cb->get_width();
x += get_constant("hseparation");
}
return x;
}
void Tabs::_ensure_no_over_offset() {
if (!is_inside_tree())
return;
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
while (offset > 0) {
int total_w = 0;
for (int i = 0; i < tabs.size(); i++) {
if (i < offset - 1)
continue;
total_w += tabs[i].size_cache;
}
if (total_w < limit) {
offset--;
update();
} else {
break;
}
}
}
void Tabs::ensure_tab_visible(int p_idx) {
if (!is_inside_tree())
return;
if (tabs.size() == 0) return;
ERR_FAIL_INDEX(p_idx, tabs.size());
if (p_idx == offset) {
return;
}
if (p_idx < offset) {
offset = p_idx;
update();
return;
}
int prev_offset = offset;
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
for (int i = offset; i <= p_idx; i++) {
if (tabs[i].ofs_cache + tabs[i].size_cache > limit) {
offset++;
}
}
if (prev_offset != offset) {
update();
}
}
Rect2 Tabs::get_tab_rect(int p_tab) const {
ERR_FAIL_INDEX_V(p_tab, tabs.size(), Rect2());
return Rect2(tabs[p_tab].ofs_cache, 0, tabs[p_tab].size_cache, get_size().height);
}
void Tabs::set_tab_close_display_policy(CloseButtonDisplayPolicy p_policy) {
ERR_FAIL_INDEX(p_policy, CLOSE_BUTTON_MAX);
cb_displaypolicy = p_policy;
update();
}
Tabs::CloseButtonDisplayPolicy Tabs::get_tab_close_display_policy() const {
return cb_displaypolicy;
}
void Tabs::set_min_width(int p_width) {
min_width = p_width;
}
void Tabs::set_scrolling_enabled(bool p_enabled) {
scrolling_enabled = p_enabled;
}
bool Tabs::get_scrolling_enabled() const {
return scrolling_enabled;
}
void Tabs::set_drag_to_rearrange_enabled(bool p_enabled) {
drag_to_rearrange_enabled = p_enabled;
}
bool Tabs::get_drag_to_rearrange_enabled() const {
return drag_to_rearrange_enabled;
}
void Tabs::set_tabs_rearrange_group(int p_group_id) {
tabs_rearrange_group = p_group_id;
}
int Tabs::get_tabs_rearrange_group() const {
return tabs_rearrange_group;
}
void Tabs::set_select_with_rmb(bool p_enabled) {
select_with_rmb = p_enabled;
}
bool Tabs::get_select_with_rmb() const {
return select_with_rmb;
}
void Tabs::_bind_methods() {
ClassDB::bind_method(D_METHOD("_gui_input"), &Tabs::_gui_input);
ClassDB::bind_method(D_METHOD("_update_hover"), &Tabs::_update_hover);
ClassDB::bind_method(D_METHOD("_on_mouse_exited"), &Tabs::_on_mouse_exited);
ClassDB::bind_method(D_METHOD("get_tab_count"), &Tabs::get_tab_count);
ClassDB::bind_method(D_METHOD("set_current_tab", "tab_idx"), &Tabs::set_current_tab);
ClassDB::bind_method(D_METHOD("get_current_tab"), &Tabs::get_current_tab);
ClassDB::bind_method(D_METHOD("set_tab_title", "tab_idx", "title"), &Tabs::set_tab_title);
ClassDB::bind_method(D_METHOD("get_tab_title", "tab_idx"), &Tabs::get_tab_title);
ClassDB::bind_method(D_METHOD("set_tab_icon", "tab_idx", "icon"), &Tabs::set_tab_icon);
ClassDB::bind_method(D_METHOD("get_tab_icon", "tab_idx"), &Tabs::get_tab_icon);
ClassDB::bind_method(D_METHOD("set_tab_disabled", "tab_idx", "disabled"), &Tabs::set_tab_disabled);
ClassDB::bind_method(D_METHOD("get_tab_disabled", "tab_idx"), &Tabs::get_tab_disabled);
ClassDB::bind_method(D_METHOD("remove_tab", "tab_idx"), &Tabs::remove_tab);
ClassDB::bind_method(D_METHOD("add_tab", "title", "icon"), &Tabs::add_tab, DEFVAL(""), DEFVAL(Ref<Texture>()));
ClassDB::bind_method(D_METHOD("set_tab_align", "align"), &Tabs::set_tab_align);
ClassDB::bind_method(D_METHOD("get_tab_align"), &Tabs::get_tab_align);
ClassDB::bind_method(D_METHOD("get_tab_offset"), &Tabs::get_tab_offset);
ClassDB::bind_method(D_METHOD("get_offset_buttons_visible"), &Tabs::get_offset_buttons_visible);
ClassDB::bind_method(D_METHOD("ensure_tab_visible", "idx"), &Tabs::ensure_tab_visible);
ClassDB::bind_method(D_METHOD("get_tab_rect", "tab_idx"), &Tabs::get_tab_rect);
ClassDB::bind_method(D_METHOD("move_tab", "from", "to"), &Tabs::move_tab);
ClassDB::bind_method(D_METHOD("set_tab_close_display_policy", "policy"), &Tabs::set_tab_close_display_policy);
ClassDB::bind_method(D_METHOD("get_tab_close_display_policy"), &Tabs::get_tab_close_display_policy);
ClassDB::bind_method(D_METHOD("set_scrolling_enabled", "enabled"), &Tabs::set_scrolling_enabled);
ClassDB::bind_method(D_METHOD("get_scrolling_enabled"), &Tabs::get_scrolling_enabled);
ClassDB::bind_method(D_METHOD("set_drag_to_rearrange_enabled", "enabled"), &Tabs::set_drag_to_rearrange_enabled);
ClassDB::bind_method(D_METHOD("get_drag_to_rearrange_enabled"), &Tabs::get_drag_to_rearrange_enabled);
ClassDB::bind_method(D_METHOD("set_tabs_rearrange_group", "group_id"), &Tabs::set_tabs_rearrange_group);
ClassDB::bind_method(D_METHOD("get_tabs_rearrange_group"), &Tabs::get_tabs_rearrange_group);
ClassDB::bind_method(D_METHOD("set_select_with_rmb", "enabled"), &Tabs::set_select_with_rmb);
ClassDB::bind_method(D_METHOD("get_select_with_rmb"), &Tabs::get_select_with_rmb);
ADD_SIGNAL(MethodInfo("tab_changed", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("right_button_pressed", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("tab_close", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("tab_hover", PropertyInfo(Variant::INT, "tab")));
ADD_SIGNAL(MethodInfo("reposition_active_tab_request", PropertyInfo(Variant::INT, "idx_to")));
ADD_SIGNAL(MethodInfo("tab_clicked", PropertyInfo(Variant::INT, "tab")));
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::INT, "tab_align", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_tab_align", "get_tab_align");
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_close_display_policy", PROPERTY_HINT_ENUM, "Show Never,Show Active Only,Show Always"), "set_tab_close_display_policy", "get_tab_close_display_policy");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scrolling_enabled"), "set_scrolling_enabled", "get_scrolling_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "drag_to_rearrange_enabled"), "set_drag_to_rearrange_enabled", "get_drag_to_rearrange_enabled");
BIND_ENUM_CONSTANT(ALIGN_LEFT);
BIND_ENUM_CONSTANT(ALIGN_CENTER);
BIND_ENUM_CONSTANT(ALIGN_RIGHT);
BIND_ENUM_CONSTANT(ALIGN_MAX);
BIND_ENUM_CONSTANT(CLOSE_BUTTON_SHOW_NEVER);
BIND_ENUM_CONSTANT(CLOSE_BUTTON_SHOW_ACTIVE_ONLY);
BIND_ENUM_CONSTANT(CLOSE_BUTTON_SHOW_ALWAYS);
BIND_ENUM_CONSTANT(CLOSE_BUTTON_MAX);
}
Tabs::Tabs() {
current = 0;
tab_align = ALIGN_CENTER;
rb_hover = -1;
rb_pressing = false;
highlight_arrow = -1;
cb_hover = -1;
cb_pressing = false;
cb_displaypolicy = CLOSE_BUTTON_SHOW_NEVER;
offset = 0;
max_drawn_tab = 0;
select_with_rmb = false;
min_width = 0;
scrolling_enabled = true;
buttons_visible = false;
hover = -1;
drag_to_rearrange_enabled = false;
tabs_rearrange_group = -1;
connect("mouse_exited", this, "_on_mouse_exited");
}
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