void wxRibbonBar::RefreshTabBar()
{
wxRect tab_rect(0, 0, GetClientSize().GetWidth(), m_tab_height);
Refresh(false, &tab_rect);
}
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;
}
}
