698 lines
16 KiB
C++
698 lines
16 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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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
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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::_gui_input(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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}
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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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emit_signal("tab_changed",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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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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}
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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();
|
|
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+=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() {
|
|
|
|
ClassDB::bind_method(D_METHOD("_gui_input"),&Tabs::_gui_input);
|
|
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:Texture"),&Tabs::set_tab_icon);
|
|
ClassDB::bind_method(D_METHOD("get_tab_icon:Texture","tab_idx"),&Tabs::get_tab_icon);
|
|
ClassDB::bind_method(D_METHOD("remove_tab","tab_idx"),&Tabs::remove_tab);
|
|
ClassDB::bind_method(D_METHOD("add_tab","title","icon:Texture"),&Tabs::add_tab);
|
|
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("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), "set_current_tab", "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;
|
|
|
|
}
|