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virtualx-engine/scene/gui/tab_container.cpp
Juan Linietsky 118eed485e ObjectTypeDB was renamed to ClassDB. Types are meant to be more generic to Variant. 
All usages of "type" to refer to classes were renamed to "class"
ClassDB has been exposed to GDScript.
OBJ_TYPE() macro is now GDCLASS()
2017-01-02 23:03:46 -03:00

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/*************************************************************************/
/* tab_container.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "tab_container.h"
#include "message_queue.h"
int TabContainer::_get_top_margin() const {
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Font> font = get_font("font");
int h = MAX( tab_bg->get_minimum_size().height,tab_fg->get_minimum_size().height);
int ch = font->get_height();;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (!c->has_meta("_tab_icon"))
continue;
Ref<Texture> tex = c->get_meta("_tab_icon");
if (!tex.is_valid())
continue;
ch = MAX( ch, tex->get_size().height );
}
h+=ch;
return h;
}
void TabContainer::_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 top_margin = _get_top_margin();
if (pos.y>top_margin)
return; // no click (too far down)
if (pos.x<tabs_ofs_cache)
return; // no click (too far left)
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");
Ref<Texture> menu = get_icon("menu");
Ref<Texture> menu_hl = get_icon("menu_hl");
if (popup && pos.x>get_size().width-menu->get_width()) {
emit_signal("pre_popup_pressed");
Vector2 pp_pos = get_global_pos();
pp_pos.x+=get_size().width;
pp_pos.x-=popup->get_size().width;
pp_pos.y+=menu->get_height();
popup->set_global_pos( pp_pos );
popup->popup();;
return;
}
pos.x-=tabs_ofs_cache;
int idx=0;
int found=-1;
bool rightroom=false;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx<tab_display_ofs) {
idx++;
continue;
}
if (idx>last_tab_cache) {
rightroom=true;
break;
}
String s = c->has_meta("_tab_name")?String(XL_MESSAGE(String(c->get_meta("_tab_name")))):String(c->get_name());
int tab_width=font->get_string_size(s).width;
if (c->has_meta("_tab_icon")) {
Ref<Texture> icon = c->get_meta("_tab_icon");
if (icon.is_valid()) {
tab_width+=icon->get_width();
if (s!="")
tab_width+=get_constant("hseparation");
}
}
if (idx==current) {
tab_width+=tab_fg->get_minimum_size().width;
} else {
tab_width+=tab_bg->get_minimum_size().width;
}
if (pos.x < tab_width) {
found=idx;
break;
}
pos.x-=tab_width;
idx++;
}
if (buttons_visible_cache) {
if (p_event.mouse_button.x>get_size().width-incr->get_width()) {
if (rightroom) {
tab_display_ofs+=1;
update();
}
} else if (p_event.mouse_button.x>get_size().width-incr->get_width()-decr->get_width()) {
if (tab_display_ofs>0) {
tab_display_ofs-=1;
update();
}
}
}
if (found!=-1) {
set_current_tab(found);
}
}
}
void TabContainer::_notification(int p_what) {
switch(p_what) {
case NOTIFICATION_DRAW: {
RID ci = get_canvas_item();
Ref<StyleBox> panel = get_stylebox("panel");
Size2 size = get_size();
if (!tabs_visible) {
panel->draw(ci, Rect2( 0, 0, size.width, size.height));
return;
}
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Texture> incr = get_icon("increment");
Ref<Texture> decr = get_icon("decrement");
Ref<Texture> menu = get_icon("menu");
Ref<Texture> menu_hl = get_icon("menu_hl");
Ref<Font> font = get_font("font");
Color color_fg = get_color("font_color_fg");
Color color_bg = get_color("font_color_bg");
int side_margin = get_constant("side_margin");
int top_margin = _get_top_margin();
Size2 top_size = Size2( size.width, top_margin );
int w=0;
int idx=0;
Vector<int> offsets;
Vector<Control*> controls;
int from=0;
int limit=get_size().width;
if (popup) {
top_size.width-=menu->get_width();
limit-=menu->get_width();
}
bool notdone=false;
last_tab_cache=-1;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx<tab_display_ofs) {
idx++;
from=idx;
continue;
}
if (w>=get_size().width) {
buttons_visible_cache=true;
notdone=true;
break;
}
offsets.push_back(w);
controls.push_back(c);
String s = c->has_meta("_tab_name")?String(XL_MESSAGE(String(c->get_meta("_tab_name")))):String(c->get_name());
w+=font->get_string_size(s).width;
if (c->has_meta("_tab_icon")) {
Ref<Texture> icon = c->get_meta("_tab_icon");
if (icon.is_valid()) {
w+=icon->get_width();
if (s!="")
w+=get_constant("hseparation");
}
}
if (idx==current) {
w+=tab_fg->get_minimum_size().width;
} else {
w+=tab_bg->get_minimum_size().width;
}
if (idx<tab_display_ofs) {
}
last_tab_cache=idx;
idx++;
}
int ofs;
switch(align) {
case ALIGN_LEFT: ofs = side_margin; break;
case ALIGN_CENTER: ofs = (int(limit) - w)/2; break;
case ALIGN_RIGHT: ofs = int(limit) - w - side_margin; break;
};
tab_display_ofs=0;
tabs_ofs_cache=ofs;
idx=0;
for(int i=0;i<controls.size();i++) {
idx=i+from;
if (current>=from && current<from+controls.size()-1) {
//current is visible! draw it last.
if (i==controls.size()-1) {
idx=current;
} else if (idx>=current) {
idx+=1;
}
}
Control *c = controls[idx-from];
String s = c->has_meta("_tab_name")?String(c->get_meta("_tab_name")):String(c->get_name());
int w=font->get_string_size(s).width;
Ref<Texture> icon;
if (c->has_meta("_tab_icon")) {
icon = c->get_meta("_tab_icon");
if (icon.is_valid()) {
w+=icon->get_width();
if (s!="")
w+=get_constant("hseparation");
}
}
Ref<StyleBox> sb;
Color col;
if (idx==current) {
sb=tab_fg;
col=color_fg;
} else {
sb=tab_bg;
col=color_bg;
}
int lofs = ofs + offsets[idx-from];
Size2i sb_ms = sb->get_minimum_size();
Rect2 sb_rect = Rect2( lofs, 0, w+sb_ms.width, top_margin);
sb->draw(ci, sb_rect );
Point2i lpos = sb_rect.pos;
lpos.x+=sb->get_margin(MARGIN_LEFT);
if (icon.is_valid()) {
icon->draw(ci, Point2i( lpos.x, sb->get_margin(MARGIN_TOP)+((sb_rect.size.y-sb_ms.y)-icon->get_height())/2 ) );
if (s!="")
lpos.x+=icon->get_width()+get_constant("hseparation");
}
font->draw(ci, Point2i( lpos.x, sb->get_margin(MARGIN_TOP)+((sb_rect.size.y-sb_ms.y)-font->get_height())/2+font->get_ascent() ), s, col );
idx++;
}
if (buttons_visible_cache) {
int vofs = (top_margin-incr->get_height())/2;
decr->draw(ci,Point2(limit,vofs),Color(1,1,1,tab_display_ofs==0?0.5:1.0));
incr->draw(ci,Point2(limit+incr->get_width(),vofs),Color(1,1,1,notdone?1.0:0.5));
}
if (popup) {
int from = get_size().width-menu->get_width();
if (mouse_x_cache > from)
menu_hl->draw(get_canvas_item(),Size2(from,0));
else
menu->draw(get_canvas_item(),Size2(from,0));
}
panel->draw(ci, Rect2( 0, top_size.height, size.width, size.height-top_size.height));
} break;
case NOTIFICATION_THEME_CHANGED: {
if (get_tab_count() > 0) {
call_deferred("set_current_tab",get_current_tab()); //wait until all changed theme
}
} break;
}
}
void TabContainer::_child_renamed_callback() {
update();
}
void TabContainer::add_child_notify(Node *p_child) {
Control::add_child_notify(p_child);
Control *c = p_child->cast_to<Control>();
if (!c)
return;
if (c->is_set_as_toplevel())
return;
bool first=false;
if (get_tab_count()!=1)
c->hide();
else {
c->show();
//call_deferred("set_current_tab",0);
first=true;
current=0;
}
c->set_area_as_parent_rect();
if (tabs_visible)
c->set_margin(MARGIN_TOP,_get_top_margin());
Ref<StyleBox> sb = get_stylebox("panel");
for(int i=0;i<4;i++)
c->set_margin(Margin(i),c->get_margin(Margin(i))+sb->get_margin(Margin(i)));
update();
p_child->connect("renamed", this,"_child_renamed_callback");
if(first)
emit_signal("tab_changed",current);
}
int TabContainer::get_tab_count() const {
int count=0;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
count++;
}
return count;
}
void TabContainer::set_current_tab(int p_current) {
ERR_FAIL_INDEX( p_current, get_tab_count() );
current=p_current;
int idx=0;
Ref<StyleBox> sb=get_stylebox("panel");
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx==current) {
c->show();
c->set_area_as_parent_rect();
if (tabs_visible)
c->set_margin(MARGIN_TOP,_get_top_margin());
for(int i=0;i<4;i++)
c->set_margin(Margin(i),c->get_margin(Margin(i))+sb->get_margin(Margin(i)));
} else
c->hide();
idx++;
}
_change_notify("current_tab");
emit_signal("tab_changed",current);
update();
}
int TabContainer::get_current_tab() const {
return current;
}
Control* TabContainer::get_tab_control(int p_idx) const {
int idx=0;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx==p_idx) {
return c;
}
idx++;
}
return NULL;
}
Control* TabContainer::get_current_tab_control() const {
int idx=0;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx==current) {
return c;
}
idx++;
}
return NULL;
}
void TabContainer::remove_child_notify(Node *p_child) {
Control::remove_child_notify(p_child);
int tc = get_tab_count();
if (current==tc-1) {
current--;
if (current<0)
current=0;
else {
call_deferred("set_current_tab",current);
}
}
p_child->disconnect("renamed", this,"_child_renamed_callback");
update();
}
void TabContainer::set_tab_align(TabAlign p_align) {
ERR_FAIL_INDEX(p_align,3);
align=p_align;
update();
_change_notify("tab_align");
}
TabContainer::TabAlign TabContainer::get_tab_align() const {
return align;
}
void TabContainer::set_tabs_visible(bool p_visibe) {
if (p_visibe==tabs_visible)
return;
tabs_visible=p_visibe;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (p_visibe)
c->set_margin(MARGIN_TOP,_get_top_margin());
else
c->set_margin(MARGIN_TOP,0);
}
update();
}
bool TabContainer::are_tabs_visible() const {
return tabs_visible;
}
Control *TabContainer::_get_tab(int p_idx) const {
int idx=0;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (idx==p_idx)
return c;
idx++;
}
return NULL;
}
void TabContainer::set_tab_title(int p_tab,const String& p_title) {
Control *child = _get_tab(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_name",p_title);
}
String TabContainer::get_tab_title(int p_tab) const{
Control *child = _get_tab(p_tab);
ERR_FAIL_COND_V(!child,"");
if (child->has_meta("_tab_name"))
return child->get_meta("_tab_name");
else
return child->get_name();
}
void TabContainer::set_tab_icon(int p_tab,const Ref<Texture>& p_icon){
Control *child = _get_tab(p_tab);
ERR_FAIL_COND(!child);
child->set_meta("_tab_icon",p_icon);
}
Ref<Texture> TabContainer::get_tab_icon(int p_tab) const{
Control *child = _get_tab(p_tab);
ERR_FAIL_COND_V(!child,Ref<Texture>());
if (child->has_meta("_tab_icon"))
return child->get_meta("_tab_icon");
else
return Ref<Texture>();
}
void TabContainer::get_translatable_strings(List<String> *p_strings) const {
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (!c->has_meta("_tab_name"))
continue;
String name = c->get_meta("_tab_name");
if (name!="")
p_strings->push_back(name);
}
}
Size2 TabContainer::get_minimum_size() const {
Size2 ms;
for(int i=0;i<get_child_count();i++) {
Control *c = get_child(i)->cast_to<Control>();
if (!c)
continue;
if (c->is_set_as_toplevel())
continue;
if (!c->is_visible())
continue;
Size2 cms = c->get_combined_minimum_size();
ms.x=MAX(ms.x,cms.x);
ms.y=MAX(ms.y,cms.y);
}
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<Font> font = get_font("font");
ms.y+=MAX(tab_bg->get_minimum_size().y,tab_fg->get_minimum_size().y);
ms.y+=font->get_height();
Ref<StyleBox> sb = get_stylebox("panel");
ms+=sb->get_minimum_size();
return ms;
}
void TabContainer::set_popup(Node *p_popup) {
ERR_FAIL_NULL(p_popup);
popup=p_popup->cast_to<Popup>();
update();
}
Popup* TabContainer::get_popup() const {
return popup;
}
void TabContainer::_bind_methods() {
ClassDB::bind_method(_MD("_input_event"),&TabContainer::_input_event);
ClassDB::bind_method(_MD("get_tab_count"),&TabContainer::get_tab_count);
ClassDB::bind_method(_MD("set_current_tab","tab_idx"),&TabContainer::set_current_tab);
ClassDB::bind_method(_MD("get_current_tab"),&TabContainer::get_current_tab);
ClassDB::bind_method(_MD("get_current_tab_control:Control"),&TabContainer::get_current_tab_control);
ClassDB::bind_method(_MD("get_tab_control:Control","idx"),&TabContainer::get_tab_control);
ClassDB::bind_method(_MD("set_tab_align","align"),&TabContainer::set_tab_align);
ClassDB::bind_method(_MD("get_tab_align"),&TabContainer::get_tab_align);
ClassDB::bind_method(_MD("set_tabs_visible","visible"),&TabContainer::set_tabs_visible);
ClassDB::bind_method(_MD("are_tabs_visible"),&TabContainer::are_tabs_visible);
ClassDB::bind_method(_MD("set_tab_title","tab_idx","title"),&TabContainer::set_tab_title);
ClassDB::bind_method(_MD("get_tab_title","tab_idx"),&TabContainer::get_tab_title);
ClassDB::bind_method(_MD("set_tab_icon","tab_idx","icon:Texture"),&TabContainer::set_tab_icon);
ClassDB::bind_method(_MD("get_tab_icon:Texture","tab_idx"),&TabContainer::get_tab_icon);
ClassDB::bind_method(_MD("set_popup","popup:Popup"),&TabContainer::set_popup);
ClassDB::bind_method(_MD("get_popup:Popup"),&TabContainer::get_popup);
ClassDB::bind_method(_MD("_child_renamed_callback"),&TabContainer::_child_renamed_callback);
ADD_SIGNAL(MethodInfo("tab_changed",PropertyInfo(Variant::INT,"tab")));
ADD_SIGNAL(MethodInfo("pre_popup_pressed"));
ADD_PROPERTY( PropertyInfo(Variant::INT, "tab_align", PROPERTY_HINT_ENUM,"Left,Center,Right"), _SCS("set_tab_align"), _SCS("get_tab_align") );
ADD_PROPERTY( PropertyInfo(Variant::INT, "current_tab", PROPERTY_HINT_RANGE,"-1,4096,1",PROPERTY_USAGE_EDITOR), _SCS("set_current_tab"), _SCS("get_current_tab") );
ADD_PROPERTY( PropertyInfo(Variant::BOOL, "tabs_visible"), _SCS("set_tabs_visible"), _SCS("are_tabs_visible") );
}
TabContainer::TabContainer() {
tab_display_ofs=0;
buttons_visible_cache=false;
tabs_ofs_cache=0;
current=0;
mouse_x_cache=0;
align=ALIGN_CENTER;
tabs_visible=true;
popup=NULL;
}
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