662 lines
17 KiB
C++
662 lines
17 KiB
C++
/*************************************************************************/
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/* tabs.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2018 Godot Engine contributors (cf. AUTHORS.md) */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "tabs.h"
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#include "message_queue.h"
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Size2 Tabs::get_minimum_size() const {
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Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
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Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
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Ref<Font> font = get_font("font");
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Size2 ms(0, MAX(tab_bg->get_minimum_size().height, tab_fg->get_minimum_size().height) + font->get_height());
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for (int i = 0; i < tabs.size(); i++) {
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Ref<Texture> tex = tabs[i].icon;
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if (tex.is_valid()) {
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ms.height = MAX(ms.height, tex->get_size().height);
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if (tabs[i].text != "")
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ms.width += get_constant("hseparation");
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}
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ms.width += font->get_string_size(tabs[i].text).width;
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if (current == i)
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ms.width += tab_fg->get_minimum_size().width;
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else
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ms.width += tab_bg->get_minimum_size().width;
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if (tabs[i].right_button.is_valid()) {
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Ref<Texture> rb = tabs[i].right_button;
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Size2 bms = rb->get_size();
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bms.width += get_constant("hseparation");
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ms.width += bms.width;
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ms.height = MAX(bms.height + tab_bg->get_minimum_size().height, ms.height);
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}
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if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
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Ref<Texture> cb = get_icon("close");
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Size2 bms = cb->get_size();
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bms.width += get_constant("hseparation");
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ms.width += bms.width;
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ms.height = MAX(bms.height + tab_bg->get_minimum_size().height, ms.height);
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}
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}
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ms.width = 0; //TODO: should make this optional
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return ms;
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}
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void Tabs::_input_event(const InputEvent &p_event) {
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if (p_event.type == InputEvent::MOUSE_MOTION) {
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Point2 pos(p_event.mouse_motion.x, p_event.mouse_motion.y);
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hilite_arrow = -1;
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if (buttons_visible) {
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Ref<Texture> incr = get_icon("increment");
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Ref<Texture> decr = get_icon("decrement");
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int limit = get_size().width - incr->get_width() - decr->get_width();
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if (pos.x > limit + decr->get_width()) {
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hilite_arrow = 1;
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} else if (pos.x > limit) {
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hilite_arrow = 0;
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}
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}
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// test hovering to display right or close button
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int hover_buttons = -1;
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hover = -1;
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for (int i = 0; i < tabs.size(); i++) {
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if (i < offset)
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continue;
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if (tabs[i].rb_rect.has_point(pos)) {
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rb_hover = i;
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cb_hover = -1;
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hover_buttons = i;
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break;
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} else if (tabs[i].cb_rect.has_point(pos)) {
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cb_hover = i;
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rb_hover = -1;
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hover_buttons = i;
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break;
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}
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}
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if (hover_buttons == -1) { // no hover
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rb_hover = hover_buttons;
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cb_hover = hover_buttons;
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}
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update();
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return;
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}
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if (rb_pressing && p_event.type == InputEvent::MOUSE_BUTTON &&
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!p_event.mouse_button.pressed &&
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p_event.mouse_button.button_index == BUTTON_LEFT) {
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if (rb_hover != -1) {
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//pressed
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emit_signal("right_button_pressed", rb_hover);
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}
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rb_pressing = false;
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update();
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}
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if (cb_pressing && p_event.type == InputEvent::MOUSE_BUTTON &&
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!p_event.mouse_button.pressed &&
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p_event.mouse_button.button_index == BUTTON_LEFT) {
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if (cb_hover != -1) {
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//pressed
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emit_signal("tab_close", cb_hover);
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}
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cb_pressing = false;
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update();
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}
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if (p_event.type == InputEvent::MOUSE_BUTTON &&
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p_event.mouse_button.pressed &&
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p_event.mouse_button.button_index == BUTTON_LEFT) {
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// clicks
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Point2 pos(p_event.mouse_button.x, p_event.mouse_button.y);
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if (buttons_visible) {
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Ref<Texture> incr = get_icon("increment");
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Ref<Texture> decr = get_icon("decrement");
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int limit = get_size().width - incr->get_width() - decr->get_width();
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if (pos.x > limit + decr->get_width()) {
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if (missing_right) {
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offset++;
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update();
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}
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return;
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} else if (pos.x > limit) {
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if (offset > 0) {
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offset--;
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update();
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}
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return;
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}
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}
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int found = -1;
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for (int i = 0; i < tabs.size(); i++) {
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if (i < offset)
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continue;
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if (tabs[i].rb_rect.has_point(pos)) {
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rb_pressing = true;
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update();
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return;
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}
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if (tabs[i].cb_rect.has_point(pos)) {
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cb_pressing = true;
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update();
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return;
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}
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if (pos.x >= tabs[i].ofs_cache && pos.x < tabs[i].ofs_cache + tabs[i].size_cache) {
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found = i;
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break;
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}
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}
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if (found != -1) {
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set_current_tab(found);
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}
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}
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}
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void Tabs::_notification(int p_what) {
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switch (p_what) {
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case NOTIFICATION_MOUSE_EXIT: {
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rb_hover = -1;
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cb_hover = -1;
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hover = -1;
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update();
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} break;
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case NOTIFICATION_RESIZED: {
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_ensure_no_over_offset();
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} break;
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case NOTIFICATION_DRAW: {
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RID ci = get_canvas_item();
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Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
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Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
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Ref<Font> font = get_font("font");
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Color color_fg = get_color("font_color_fg");
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Color color_bg = get_color("font_color_bg");
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Ref<Texture> close = get_icon("close");
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int h = get_size().height;
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int w = 0;
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int mw = 0;
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for (int i = 0; i < tabs.size(); i++) {
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tabs[i].ofs_cache = mw;
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mw += get_tab_width(i);
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}
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if (tab_align == ALIGN_CENTER) {
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w = (get_size().width - mw) / 2;
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} else if (tab_align == ALIGN_RIGHT) {
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w = get_size().width - mw;
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}
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if (w < 0) {
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w = 0;
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}
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Ref<Texture> incr = get_icon("increment");
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Ref<Texture> decr = get_icon("decrement");
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Ref<Texture> incr_hl = get_icon("increment_hilite");
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Ref<Texture> decr_hl = get_icon("decrement_hilite");
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int limit = get_size().width - incr->get_size().width - decr->get_size().width;
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missing_right = false;
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for (int i = 0; i < tabs.size(); i++) {
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if (i < offset)
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continue;
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tabs[i].ofs_cache = w;
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int lsize = get_tab_width(i);
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String text = tabs[i].text;
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int slen = font->get_string_size(text).width;
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if (w + lsize > limit) {
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max_drawn_tab = i - 1;
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missing_right = true;
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break;
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} else {
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max_drawn_tab = i;
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}
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Ref<StyleBox> sb;
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Color col;
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if (i == current) {
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sb = tab_fg;
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col = color_fg;
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} else {
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sb = tab_bg;
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col = color_bg;
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}
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Rect2 sb_rect = Rect2(w, 0, lsize, h);
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sb->draw(ci, sb_rect);
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w += sb->get_margin(MARGIN_LEFT);
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Size2i sb_ms = sb->get_minimum_size();
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Ref<Texture> icon = tabs[i].icon;
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if (icon.is_valid()) {
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icon->draw(ci, Point2i(w, sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - icon->get_height()) / 2));
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if (text != "")
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w += icon->get_width() + get_constant("hseparation");
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}
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font->draw(ci, Point2i(w, sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - font->get_height()) / 2 + font->get_ascent()), text, col);
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w += slen;
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if (tabs[i].right_button.is_valid()) {
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Ref<StyleBox> style = get_stylebox("button");
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Ref<Texture> rb = tabs[i].right_button;
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w += get_constant("hseparation");
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Rect2 rb_rect;
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rb_rect.size = style->get_minimum_size() + rb->get_size();
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rb_rect.pos.x = w;
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rb_rect.pos.y = sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - (rb_rect.size.y)) / 2;
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if (rb_hover == i) {
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if (rb_pressing)
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get_stylebox("button_pressed")->draw(ci, rb_rect);
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else
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style->draw(ci, rb_rect);
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}
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rb->draw(ci, Point2i(w + style->get_margin(MARGIN_LEFT), rb_rect.pos.y + style->get_margin(MARGIN_TOP)));
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w += rb->get_width();
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tabs[i].rb_rect = rb_rect;
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}
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if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
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Ref<StyleBox> style = get_stylebox("button");
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Ref<Texture> cb = close;
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w += get_constant("hseparation");
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Rect2 cb_rect;
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cb_rect.size = style->get_minimum_size() + cb->get_size();
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cb_rect.pos.x = w;
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cb_rect.pos.y = sb->get_margin(MARGIN_TOP) + ((sb_rect.size.y - sb_ms.y) - (cb_rect.size.y)) / 2;
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if (cb_hover == i) {
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if (cb_pressing)
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get_stylebox("button_pressed")->draw(ci, cb_rect);
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else
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style->draw(ci, cb_rect);
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}
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cb->draw(ci, Point2i(w + style->get_margin(MARGIN_LEFT), cb_rect.pos.y + style->get_margin(MARGIN_TOP)));
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w += cb->get_width();
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tabs[i].cb_rect = cb_rect;
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}
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w += sb->get_margin(MARGIN_RIGHT);
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tabs[i].size_cache = w - tabs[i].ofs_cache;
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}
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if (offset > 0 || missing_right) {
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int vofs = (get_size().height - incr->get_size().height) / 2;
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if (offset > 0)
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draw_texture(hilite_arrow == 0 ? decr_hl : decr, Point2(limit, vofs));
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else
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draw_texture(decr, Point2(limit, vofs), Color(1, 1, 1, 0.5));
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if (missing_right)
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draw_texture(hilite_arrow == 1 ? incr_hl : incr, Point2(limit + decr->get_size().width, vofs));
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else
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draw_texture(incr, Point2(limit + decr->get_size().width, vofs), Color(1, 1, 1, 0.5));
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buttons_visible = true;
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} else {
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buttons_visible = false;
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}
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} break;
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}
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}
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int Tabs::get_tab_count() const {
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return tabs.size();
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}
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void Tabs::set_current_tab(int p_current) {
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if (current == p_current) return;
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ERR_FAIL_INDEX(p_current, get_tab_count());
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current = p_current;
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_change_notify("current_tab");
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update();
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emit_signal("tab_changed", p_current);
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}
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int Tabs::get_current_tab() const {
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return current;
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}
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void Tabs::set_tab_title(int p_tab, const String &p_title) {
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ERR_FAIL_INDEX(p_tab, tabs.size());
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tabs[p_tab].text = p_title;
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update();
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minimum_size_changed();
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}
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String Tabs::get_tab_title(int p_tab) const {
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ERR_FAIL_INDEX_V(p_tab, tabs.size(), "");
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return tabs[p_tab].text;
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}
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void Tabs::set_tab_icon(int p_tab, const Ref<Texture> &p_icon) {
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ERR_FAIL_INDEX(p_tab, tabs.size());
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tabs[p_tab].icon = p_icon;
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update();
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minimum_size_changed();
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}
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Ref<Texture> Tabs::get_tab_icon(int p_tab) const {
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ERR_FAIL_INDEX_V(p_tab, tabs.size(), Ref<Texture>());
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return tabs[p_tab].icon;
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}
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void Tabs::set_tab_right_button(int p_tab, const Ref<Texture> &p_right_button) {
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ERR_FAIL_INDEX(p_tab, tabs.size());
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tabs[p_tab].right_button = p_right_button;
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update();
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minimum_size_changed();
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}
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Ref<Texture> Tabs::get_tab_right_button(int p_tab) const {
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ERR_FAIL_INDEX_V(p_tab, tabs.size(), Ref<Texture>());
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return tabs[p_tab].right_button;
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}
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void Tabs::add_tab(const String &p_str, const Ref<Texture> &p_icon) {
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Tab t;
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t.text = p_str;
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t.icon = p_icon;
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tabs.push_back(t);
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update();
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minimum_size_changed();
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}
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void Tabs::clear_tabs() {
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tabs.clear();
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current = 0;
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update();
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}
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void Tabs::remove_tab(int p_idx) {
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ERR_FAIL_INDEX(p_idx, tabs.size());
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tabs.remove(p_idx);
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if (current >= p_idx)
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current--;
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update();
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minimum_size_changed();
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if (current < 0)
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current = 0;
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if (current >= tabs.size())
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current = tabs.size() - 1;
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_ensure_no_over_offset();
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}
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void Tabs::set_tab_align(TabAlign p_align) {
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tab_align = p_align;
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update();
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}
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Tabs::TabAlign Tabs::get_tab_align() const {
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return tab_align;
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}
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int Tabs::get_tab_width(int p_idx) const {
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ERR_FAIL_INDEX_V(p_idx, tabs.size(), 0);
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Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
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Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
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Ref<Font> font = get_font("font");
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int x = 0;
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Ref<Texture> tex = tabs[p_idx].icon;
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if (tex.is_valid()) {
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x += tex->get_width();
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if (tabs[p_idx].text != "")
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x += get_constant("hseparation");
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}
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x += font->get_string_size(tabs[p_idx].text).width;
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if (current == p_idx)
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x += tab_fg->get_minimum_size().width;
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else
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x += tab_bg->get_minimum_size().width;
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if (tabs[p_idx].right_button.is_valid()) {
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Ref<Texture> rb = tabs[p_idx].right_button;
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x += rb->get_width();
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x += get_constant("hseparation");
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}
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if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && p_idx == current)) {
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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 += get_tab_width(i);
|
|
}
|
|
|
|
if (total_w < limit) {
|
|
offset--;
|
|
update();
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Tabs::ensure_tab_visible(int p_idx) {
|
|
|
|
if (!is_inside_tree())
|
|
return;
|
|
|
|
ERR_FAIL_INDEX(p_idx, tabs.size());
|
|
|
|
_ensure_no_over_offset();
|
|
|
|
if (p_idx <= offset) {
|
|
offset = p_idx;
|
|
update();
|
|
return;
|
|
}
|
|
|
|
Ref<Texture> incr = get_icon("increment");
|
|
Ref<Texture> decr = get_icon("decrement");
|
|
int limit = get_size().width - incr->get_width() - decr->get_width();
|
|
|
|
int x = 0;
|
|
for (int i = 0; i < tabs.size(); i++) {
|
|
|
|
if (i < offset)
|
|
continue;
|
|
|
|
int sz = get_tab_width(i);
|
|
tabs[i].x_cache = x;
|
|
tabs[i].x_size_cache = sz;
|
|
x += sz;
|
|
}
|
|
|
|
while (offset < tabs.size() && ((tabs[p_idx].x_cache + tabs[p_idx].x_size_cache) - tabs[offset].x_cache) > limit) {
|
|
offset++;
|
|
}
|
|
|
|
update();
|
|
}
|
|
|
|
void Tabs::set_tab_close_display_policy(CloseButtonDisplayPolicy p_policy) {
|
|
cb_displaypolicy = p_policy;
|
|
update();
|
|
}
|
|
|
|
void Tabs::_bind_methods() {
|
|
|
|
ObjectTypeDB::bind_method(_MD("_input_event"), &Tabs::_input_event);
|
|
ObjectTypeDB::bind_method(_MD("get_tab_count"), &Tabs::get_tab_count);
|
|
ObjectTypeDB::bind_method(_MD("set_current_tab", "tab_idx"), &Tabs::set_current_tab);
|
|
ObjectTypeDB::bind_method(_MD("get_current_tab"), &Tabs::get_current_tab);
|
|
ObjectTypeDB::bind_method(_MD("set_tab_title", "tab_idx", "title"), &Tabs::set_tab_title);
|
|
ObjectTypeDB::bind_method(_MD("get_tab_title", "tab_idx"), &Tabs::get_tab_title);
|
|
ObjectTypeDB::bind_method(_MD("set_tab_icon", "tab_idx", "icon:Texture"), &Tabs::set_tab_icon);
|
|
ObjectTypeDB::bind_method(_MD("get_tab_icon:Texture", "tab_idx"), &Tabs::get_tab_icon);
|
|
ObjectTypeDB::bind_method(_MD("remove_tab", "tab_idx"), &Tabs::remove_tab);
|
|
ObjectTypeDB::bind_method(_MD("add_tab", "title", "icon:Texture"), &Tabs::add_tab, DEFVAL(""), DEFVAL(Ref<Texture>()));
|
|
ObjectTypeDB::bind_method(_MD("set_tab_align", "align"), &Tabs::set_tab_align);
|
|
ObjectTypeDB::bind_method(_MD("get_tab_align"), &Tabs::get_tab_align);
|
|
ObjectTypeDB::bind_method(_MD("ensure_tab_visible", "idx"), &Tabs::ensure_tab_visible);
|
|
|
|
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_PROPERTY(PropertyInfo(Variant::INT, "current_tab", PROPERTY_HINT_RANGE, "-1,4096,1", PROPERTY_USAGE_EDITOR), _SCS("set_current_tab"), _SCS("get_current_tab"));
|
|
|
|
BIND_CONSTANT(ALIGN_LEFT);
|
|
BIND_CONSTANT(ALIGN_CENTER);
|
|
BIND_CONSTANT(ALIGN_RIGHT);
|
|
|
|
BIND_CONSTANT(CLOSE_BUTTON_SHOW_ACTIVE_ONLY);
|
|
BIND_CONSTANT(CLOSE_BUTTON_SHOW_ALWAYS);
|
|
BIND_CONSTANT(CLOSE_BUTTON_SHOW_NEVER);
|
|
}
|
|
|
|
Tabs::Tabs() {
|
|
|
|
current = 0;
|
|
tab_align = ALIGN_CENTER;
|
|
rb_hover = -1;
|
|
rb_pressing = false;
|
|
hilite_arrow = -1;
|
|
|
|
cb_hover = -1;
|
|
cb_pressing = false;
|
|
cb_displaypolicy = CLOSE_BUTTON_SHOW_NEVER;
|
|
offset = 0;
|
|
max_drawn_tab = 0;
|
|
}
|