godot/scene/gui/tab_container.cpp

781 lines
18 KiB
C++

/*************************************************************************/
/* tab_container.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* http://www.godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2016 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);
// h+=MIN( get_constant("label_valign_fg"), get_constant("label_valign_bg") );
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> incr_hl = get_icon("increment_hilite");
Ref<Texture> decr = get_icon("decrement");
Ref<Texture> decr_hl = get_icon("decrement_hilite");
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();
int label_valign_fg = get_constant("label_valign_fg");
int label_valign_bg = get_constant("label_valign_bg");
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;
int va;
Color col;
if (idx==current) {
sb=tab_fg;
va=label_valign_fg;
col=color_fg;
} else {
sb=tab_bg;
va=label_valign_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 );
//ofs+=sb_ms.x+w;
/*
int sb_mw = sb->get_minimum_size().width;
int font_ofs = sb_mw / 2;
Rect2i rect =Rect2( ofs, 0, w+sb_mw, top_margin);
rect.size
sb->draw(ci,rect);
rect.y+=va;
rect.height+=va;
int font_y = (rect.height - font->get_height())/2;
font->draw(ci, Point2( ofs+font_ofs, va+font_y ), 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: {
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 *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() );
//printf("DEBUG %p: set_current_tab to %i\n", this, p_current);
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) {
int tc = get_tab_count();
// bool set_curent=false;
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->has_meta("_tab_name"))
continue;
if (!c->is_visible())
continue;
Size2 cms = c->get_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();
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() {
ObjectTypeDB::bind_method(_MD("_input_event"),&TabContainer::_input_event);
ObjectTypeDB::bind_method(_MD("get_tab_count"),&TabContainer::get_tab_count);
ObjectTypeDB::bind_method(_MD("set_current_tab","tab_idx"),&TabContainer::set_current_tab);
ObjectTypeDB::bind_method(_MD("get_current_tab"),&TabContainer::get_current_tab);
ObjectTypeDB::bind_method(_MD("get_current_tab_control:Control"),&TabContainer::get_current_tab_control);
ObjectTypeDB::bind_method(_MD("get_tab_control:Control","idx"),&TabContainer::get_tab_control);
ObjectTypeDB::bind_method(_MD("set_tab_align","align"),&TabContainer::set_tab_align);
ObjectTypeDB::bind_method(_MD("get_tab_align"),&TabContainer::get_tab_align);
ObjectTypeDB::bind_method(_MD("set_tabs_visible","visible"),&TabContainer::set_tabs_visible);
ObjectTypeDB::bind_method(_MD("are_tabs_visible"),&TabContainer::are_tabs_visible);
ObjectTypeDB::bind_method(_MD("set_tab_title","tab_idx","title"),&TabContainer::set_tab_title);
ObjectTypeDB::bind_method(_MD("get_tab_title","tab_idx"),&TabContainer::get_tab_title);
ObjectTypeDB::bind_method(_MD("set_tab_icon","tab_idx","icon:Texture"),&TabContainer::set_tab_icon);
ObjectTypeDB::bind_method(_MD("get_tab_icon:Texture","tab_idx"),&TabContainer::get_tab_icon);
ObjectTypeDB::bind_method(_MD("set_popup","popup:Popup"),&TabContainer::set_popup);
ObjectTypeDB::bind_method(_MD("get_popup:Popup"),&TabContainer::get_popup);
ObjectTypeDB::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;
}