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virtualx-engine/scene/gui/tabs.cpp
Juan Linietsky e9bbb97acc Multiple scene editing *POTENTIALLY UNSTABLE* 
-ability to edit multiple scenes at the same time
-resource internal IDs are now persistent, this makes multiple scene
editing possible but maaaaay result in file corruption bugs (tested and
could not find anything but possibility exists because core code
changed, report immediately if you find this).
-properly save settings, layout, etc when edited
-script editing is independent from scene editing now
-show a yellow box when a script belongs to the scene
2015-06-22 00:04:15 -03:00

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/*************************************************************************/
/* tabs.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2015 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "tabs.h"
#include "message_queue.h"
Size2 Tabs::get_minimum_size() const {
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Font> font = get_font("font");
Size2 ms(0, MAX( tab_bg->get_minimum_size().height,tab_fg->get_minimum_size().height)+font->get_height() );
// h+=MIN( get_constant("label_valign_fg"), get_constant("label_valign_bg") );
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+=font->get_string_size(tabs[i].text).width;
if (current==i)
ms.width+=tab_fg->get_minimum_size().width;
else
ms.width+=tab_bg->get_minimum_size().width;
}
return ms;
}
void Tabs::_input_event(const InputEvent& p_event) {
if (p_event.type==InputEvent::MOUSE_BUTTON &&
p_event.mouse_button.pressed &&
p_event.mouse_button.button_index==BUTTON_LEFT) {
// clicks
Point2 pos( p_event.mouse_button.x, p_event.mouse_button.y );
int found=-1;
for(int i=0;i<tabs.size();i++) {
int ofs=tabs[i].ofs_cache;
int size = tabs[i].ofs_cache;
if (pos.x >=tabs[i].ofs_cache && pos.x<tabs[i].ofs_cache+tabs[i].size_cache) {
found=i;
break;
}
}
if (found!=-1) {
set_current_tab(found);
emit_signal("tab_changed",found);
}
}
}
void Tabs::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_DRAW: {
RID ci = get_canvas_item();
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Font> font = get_font("font");
Color color_fg = get_color("font_color_fg");
Color color_bg = get_color("font_color_bg");
int h = get_size().height;
int label_valign_fg = get_constant("label_valign_fg");
int label_valign_bg = get_constant("label_valign_bg");
int w=0;
int mw = get_minimum_size().width;
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;
}
for(int i=0;i<tabs.size();i++) {
tabs[i].ofs_cache=w;
String s = tabs[i].text;
int lsize=0;
int slen=font->get_string_size(s).width;;
lsize+=slen;
Ref<Texture> icon;
if (tabs[i].icon.is_valid()) {
Ref<Texture> icon = tabs[i].icon;
if (icon.is_valid()) {
lsize+=icon->get_width();
if (s!="")
lsize+=get_constant("hseparation");
}
}
Ref<StyleBox> sb;
int va;
Color col;
if (i==current) {
sb=tab_fg;
va=label_valign_fg;
col=color_fg;
} else {
sb=tab_bg;
va=label_valign_bg;
col=color_bg;
}
Size2i sb_ms = sb->get_minimum_size();
Rect2 sb_rect = Rect2( w, 0, lsize+sb_ms.width, h);
sb->draw(ci, sb_rect );
w+=sb->get_margin(MARGIN_LEFT);
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 (s!="")
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() ), s, col );
w+=slen+sb->get_margin(MARGIN_RIGHT);
tabs[i].size_cache=w-tabs[i].ofs_cache;
}
} break;
}
}
int Tabs::get_tab_count() const {
return tabs.size();
}
void Tabs::set_current_tab(int p_current) {
ERR_FAIL_INDEX( p_current, get_tab_count() );
//printf("DEBUG %p: set_current_tab to %i\n", this, p_current);
current=p_current;
_change_notify("current_tab");
//emit_signal("tab_changed",current);
update();
}
int Tabs::get_current_tab() const {
return current;
}
void Tabs::set_tab_title(int p_tab,const String& p_title) {
ERR_FAIL_INDEX(p_tab,tabs.size());
tabs[p_tab].text=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[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::add_tab(const String& p_str,const Ref<Texture>& p_icon) {
Tab t;
t.text=p_str;
t.icon=p_icon;
tabs.push_back(t);
update();
minimum_size_changed();
}
void Tabs::clear_tabs() {
tabs.clear();
current=0;
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();
minimum_size_changed();
if (current<0)
current=0;
if (current>=tabs.size())
current=tabs.size()-1;
//emit_signal("tab_changed",current);
}
void Tabs::set_tab_align(TabAlign p_align) {
tab_align=p_align;
update();
}
Tabs::TabAlign Tabs::get_tab_align() const {
return tab_align;
}
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);
ObjectTypeDB::bind_method(_MD("set_tab_align","align"),&Tabs::set_tab_align);
ObjectTypeDB::bind_method(_MD("get_tab_align"),&Tabs::get_tab_align);
ADD_SIGNAL(MethodInfo("tab_changed",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 );
}
Tabs::Tabs() {
current=0;
tab_align=ALIGN_CENTER;
}
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