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);
}
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();
}
void TabContainer::set_tabs_visible(bool p_visibe) {
if (p_visibe == tabs_visible)
return;
tabs_visible = p_visibe;
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (p_visibe)
c->set_margin(MARGIN_TOP, _get_top_margin());
else
c->set_margin(MARGIN_TOP, 0);
}
update();
}
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();
}
void TabContainer::set_current_tab(int p_current) {
ERR_FAIL_INDEX(p_current, get_tab_count());
int pending_previous = current;
current = p_current;
Ref<StyleBox> sb = get_stylebox("panel");
Vector<Control *> tabs = _get_tabs();
for (int i = 0; i < tabs.size(); i++) {
Control *c = tabs[i];
if (i == current) {
c->show();
c->set_area_as_parent_rect();
if (tabs_visible)
c->set_margin(MARGIN_TOP, _get_top_margin());
c->set_margin(Margin(MARGIN_TOP), c->get_margin(Margin(MARGIN_TOP)) + sb->get_margin(Margin(MARGIN_TOP)));
c->set_margin(Margin(MARGIN_LEFT), c->get_margin(Margin(MARGIN_LEFT)) + sb->get_margin(Margin(MARGIN_LEFT)));
c->set_margin(Margin(MARGIN_RIGHT), c->get_margin(Margin(MARGIN_RIGHT)) - sb->get_margin(Margin(MARGIN_RIGHT)));
c->set_margin(Margin(MARGIN_BOTTOM), c->get_margin(Margin(MARGIN_BOTTOM)) - sb->get_margin(Margin(MARGIN_BOTTOM)));
} else
c->hide();
}
_change_notify("current_tab");
if (pending_previous == current)
emit_signal("tab_selected", current);
else {
previous = pending_previous;
emit_signal("tab_selected", current);
emit_signal("tab_changed", current);
}
update();
}
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::_gui_input(const Ref<InputEvent> &p_event) {
Ref<InputEventMouseButton> mb = p_event;
if (mb.is_valid() && mb->is_pressed() && mb->get_button_index() == BUTTON_LEFT) {
Point2 pos(mb->get_position().x, mb->get_position().y);
Size2 size = get_size();
// Click must be on tabs in the tab header area.
if (pos.x < tabs_ofs_cache || pos.y > _get_top_margin())
return;
// Handle menu button.
Ref<Texture> menu = get_icon("menu");
if (popup && pos.x > size.width - menu->get_width()) {
emit_signal("pre_popup_pressed");
Vector2 popup_pos = get_global_position();
popup_pos.x += size.width - popup->get_size().width;
popup_pos.y += menu->get_height();
popup->set_global_position(popup_pos);
popup->popup();
return;
}
Vector<Control *> tabs = _get_tabs();
// Handle navigation buttons.
if (buttons_visible_cache) {
Ref<Texture> increment = get_icon("increment");
Ref<Texture> decrement = get_icon("decrement");
if (pos.x > size.width - increment->get_width()) {
if (last_tab_cache < tabs.size() - 1) {
first_tab_cache += 1;
update();
}
return;
} else if (pos.x > size.width - increment->get_width() - decrement->get_width()) {
if (first_tab_cache > 0) {
first_tab_cache -= 1;
update();
}
return;
}
}
// Activate the clicked tab.
pos.x -= tabs_ofs_cache;
for (int i = first_tab_cache; i <= last_tab_cache; i++) {
int tab_width = _get_tab_width(i);
if (pos.x < tab_width) {
if (!get_tab_disabled(i)) {
set_current_tab(i);
}
break;
}
pos.x -= tab_width;
}
}
}
void TabContainer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_DRAW: {
RID canvas = get_canvas_item();
Size2 size = get_size();
// Draw only the tab area if the header is hidden.
Ref<StyleBox> panel = get_stylebox("panel");
if (!tabs_visible) {
panel->draw(canvas, Rect2(0, 0, size.width, size.height));
return;
}
Vector<Control *> tabs = _get_tabs();
Ref<StyleBox> tab_bg = get_stylebox("tab_bg");
Ref<StyleBox> tab_fg = get_stylebox("tab_fg");
Ref<StyleBox> tab_disabled = get_stylebox("tab_disabled");
Ref<Texture> increment = get_icon("increment");
Ref<Texture> decrement = get_icon("decrement");
Ref<Texture> menu = get_icon("menu");
Ref<Texture> menu_hl = get_icon("menu_hl");
Ref<Font> font = get_font("font");
Color font_color_fg = get_color("font_color_fg");
Color font_color_bg = get_color("font_color_bg");
Color font_color_disabled = get_color("font_color_disabled");
int side_margin = get_constant("side_margin");
int icon_text_distance = get_constant("hseparation");
// Find out start and width of the header area.
int header_x = side_margin;
int header_width = size.width - side_margin * 2;
int header_height = _get_top_margin();
if (popup)
header_width -= menu->get_width();
// Check if all tabs would fit into the header area.
int all_tabs_width = 0;
for (int i = 0; i < tabs.size(); i++) {
int tab_width = _get_tab_width(i);
all_tabs_width += tab_width;
if (all_tabs_width > header_width) {
// Not all tabs are visible at the same time - reserve space for navigation buttons.
buttons_visible_cache = true;
header_width -= decrement->get_width() + increment->get_width();
break;
} else {
buttons_visible_cache = false;
}
}
// With buttons, a right side margin does not need to be respected.
if (popup || buttons_visible_cache) {
header_width += side_margin;
}
// Go through the visible tabs to find the width they occupy.
all_tabs_width = 0;
Vector<int> tab_widths;
for (int i = first_tab_cache; i < tabs.size(); i++) {
int tab_width = _get_tab_width(i);
if (all_tabs_width + tab_width > header_width && tab_widths.size() > 0)
break;
all_tabs_width += tab_width;
tab_widths.push_back(tab_width);
}
// Find the offset at which to draw tabs, according to the alignment.
switch (align) {
case ALIGN_LEFT:
tabs_ofs_cache = header_x;
break;
case ALIGN_CENTER:
tabs_ofs_cache = header_x + (header_width / 2) - (all_tabs_width / 2);
break;
case ALIGN_RIGHT:
tabs_ofs_cache = header_x + header_width - all_tabs_width;
break;
}
// Draw all visible tabs.
int x = 0;
for (int i = 0; i < tab_widths.size(); i++) {
Ref<StyleBox> tab_style;
Color font_color;
if (get_tab_disabled(i + first_tab_cache)) {
tab_style = tab_disabled;
font_color = font_color_disabled;
} else if (i + first_tab_cache == current) {
tab_style = tab_fg;
font_color = font_color_fg;
} else {
tab_style = tab_bg;
font_color = font_color_bg;
}
// Draw the tab background.
int tab_width = tab_widths[i];
Rect2 tab_rect(tabs_ofs_cache + x, 0, tab_width, header_height);
tab_style->draw(canvas, tab_rect);
// Draw the tab contents.
Control *control = tabs[i + first_tab_cache]->cast_to<Control>();
String text = control->has_meta("_tab_name") ? String(tr(String(control->get_meta("_tab_name")))) : String(control->get_name());
int x_content = tab_rect.position.x + tab_style->get_margin(MARGIN_LEFT);
int top_margin = tab_style->get_margin(MARGIN_TOP);
int y_center = top_margin + (tab_rect.size.y - tab_style->get_minimum_size().y) / 2;
// Draw the tab icon.
if (control->has_meta("_tab_icon")) {
Ref<Texture> icon = control->get_meta("_tab_icon");
if (icon.is_valid()) {
int y = y_center - (icon->get_height() / 2);
icon->draw(canvas, Point2i(x_content, y));
if (text != "")
x_content += icon->get_width() + icon_text_distance;
}
}
// Draw the tab text.
Point2i text_pos(x_content, y_center - (font->get_height() / 2) + font->get_ascent());
font->draw(canvas, text_pos, text, font_color);
x += tab_width;
last_tab_cache = i + first_tab_cache;
}
// Draw the popup menu.
x = get_size().width;
if (popup) {
x -= menu->get_width();
if (mouse_x_cache > x)
menu_hl->draw(get_canvas_item(), Size2(x, 0));
else
menu->draw(get_canvas_item(), Size2(x, 0));
}
// Draw the navigation buttons.
if (buttons_visible_cache) {
int y_center = header_height / 2;
x -= increment->get_width();
increment->draw(canvas,
Point2(x, y_center - (increment->get_height() / 2)),
Color(1, 1, 1, last_tab_cache < tabs.size() - 1 ? 1.0 : 0.5));
x -= decrement->get_width();
decrement->draw(canvas,
Point2(x, y_center - (decrement->get_height() / 2)),
Color(1, 1, 1, first_tab_cache > 0 ? 1.0 : 0.5));
}
// Draw the tab area.
panel->draw(canvas, Rect2(0, header_height, size.width, size.height - header_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;
}
}
