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path: root/scene/gui/tab_bar.cpp
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Diffstat (limited to 'scene/gui/tab_bar.cpp')
-rw-r--r--scene/gui/tab_bar.cpp389
1 files changed, 205 insertions, 184 deletions
diff --git a/scene/gui/tab_bar.cpp b/scene/gui/tab_bar.cpp
index 92da169487..9da030f0a2 100644
--- a/scene/gui/tab_bar.cpp
+++ b/scene/gui/tab_bar.cpp
@@ -147,6 +147,7 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
if (scrolling_enabled && buttons_visible) {
if (offset > 0) {
offset--;
+ _update_cache();
update();
}
}
@@ -154,9 +155,9 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
if (mb->is_pressed() && mb->get_button_index() == MouseButton::WHEEL_DOWN && !mb->is_command_pressed()) {
if (scrolling_enabled && buttons_visible) {
- if (missing_right) {
+ if (missing_right && offset < tabs.size()) {
offset++;
- _ensure_no_over_offset(); // Avoid overreaching when scrolling fast.
+ _update_cache();
update();
}
}
@@ -194,12 +195,14 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
if (pos.x < decr->get_width()) {
if (missing_right) {
offset++;
+ _update_cache();
update();
}
return;
} else if (pos.x < incr->get_width() + decr->get_width()) {
if (offset > 0) {
offset--;
+ _update_cache();
update();
}
return;
@@ -209,12 +212,14 @@ void TabBar::gui_input(const Ref<InputEvent> &p_event) {
if (pos.x > limit + decr->get_width()) {
if (missing_right) {
offset++;
+ _update_cache();
update();
}
return;
} else if (pos.x > limit) {
if (offset > 0) {
offset--;
+ _update_cache();
update();
}
return;
@@ -294,8 +299,9 @@ void TabBar::_notification(int p_what) {
ensure_tab_visible(current);
} break;
case NOTIFICATION_DRAW: {
- _update_cache();
- RID ci = get_canvas_item();
+ if (tabs.is_empty()) {
+ return;
+ }
Ref<StyleBox> tab_unselected = get_theme_stylebox(SNAME("tab_unselected"));
Ref<StyleBox> tab_selected = get_theme_stylebox(SNAME("tab_selected"));
@@ -303,174 +309,46 @@ void TabBar::_notification(int p_what) {
Color font_selected_color = get_theme_color(SNAME("font_selected_color"));
Color font_unselected_color = get_theme_color(SNAME("font_unselected_color"));
Color font_disabled_color = get_theme_color(SNAME("font_disabled_color"));
- Ref<Texture2D> close = get_theme_icon(SNAME("close"));
- Color font_outline_color = get_theme_color(SNAME("font_outline_color"));
- int outline_size = get_theme_constant(SNAME("outline_size"));
-
- Vector2 size = get_size();
- bool rtl = is_layout_rtl();
-
- int h = get_size().height;
- int w = 0;
- int mw = 0;
-
- for (int i = 0; i < tabs.size(); i++) {
- tabs.write[i].ofs_cache = mw;
- mw += get_tab_width(i);
- }
-
- if (tab_alignment == ALIGNMENT_CENTER) {
- w = (get_size().width - mw) / 2;
- } else if (tab_alignment == ALIGNMENT_RIGHT) {
- w = get_size().width - mw;
- }
-
- if (w < 0) {
- w = 0;
- }
-
Ref<Texture2D> incr = get_theme_icon(SNAME("increment"));
Ref<Texture2D> decr = get_theme_icon(SNAME("decrement"));
Ref<Texture2D> incr_hl = get_theme_icon(SNAME("increment_highlight"));
Ref<Texture2D> decr_hl = get_theme_icon(SNAME("decrement_highlight"));
- int limit = get_size().width;
- int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
-
- missing_right = false;
-
- for (int i = offset; i < tabs.size(); i++) {
- tabs.write[i].ofs_cache = w;
-
- int lsize = tabs[i].size_cache;
-
- Ref<StyleBox> sb;
- Color col;
-
- if (tabs[i].disabled) {
- sb = tab_disabled;
- col = font_disabled_color;
- } else if (i == current) {
- sb = tab_selected;
- col = font_selected_color;
- } else {
- sb = tab_unselected;
- col = font_unselected_color;
- }
-
- int new_width = w + lsize;
- if (new_width > limit || (i < tabs.size() - 1 && new_width > limit_minus_buttons)) { // For the last tab, we accept if the tab covers the buttons.
- max_drawn_tab = i - 1;
- missing_right = true;
- break;
- } else {
- max_drawn_tab = i;
- }
-
- Rect2 sb_rect;
- if (rtl) {
- sb_rect = Rect2(size.width - w - tabs[i].size_cache, 0, tabs[i].size_cache, h);
- } else {
- sb_rect = Rect2(w, 0, tabs[i].size_cache, h);
- }
- sb->draw(ci, sb_rect);
-
- w += sb->get_margin(SIDE_LEFT);
-
- Size2i sb_ms = sb->get_minimum_size();
- Ref<Texture2D> icon = tabs[i].icon;
- if (icon.is_valid()) {
- if (rtl) {
- icon->draw(ci, Point2i(size.width - w - icon->get_width(), sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - icon->get_height()) / 2));
- } else {
- icon->draw(ci, Point2i(w, sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - icon->get_height()) / 2));
- }
- if (!tabs[i].text.is_empty()) {
- w += icon->get_width() + get_theme_constant(SNAME("hseparation"));
- }
- }
-
- if (rtl) {
- Vector2 text_pos = Point2i(size.width - w - tabs[i].text_buf->get_size().x, sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - tabs[i].text_buf->get_size().y) / 2);
- if (outline_size > 0 && font_outline_color.a > 0) {
- tabs[i].text_buf->draw_outline(ci, text_pos, outline_size, font_outline_color);
- }
- tabs[i].text_buf->draw(ci, text_pos, col);
- } else {
- Vector2 text_pos = Point2i(w, sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - tabs[i].text_buf->get_size().y) / 2);
- if (outline_size > 0 && font_outline_color.a > 0) {
- tabs[i].text_buf->draw_outline(ci, text_pos, outline_size, font_outline_color);
- }
- tabs[i].text_buf->draw(ci, text_pos, col);
- }
-
- w += tabs[i].size_text;
-
- if (tabs[i].right_button.is_valid()) {
- Ref<StyleBox> style = get_theme_stylebox(SNAME("close_bg_highlight"));
- Ref<Texture2D> rb = tabs[i].right_button;
+ bool rtl = is_layout_rtl();
+ Vector2 size = get_size();
+ int limit_minus_buttons = size.width - incr->get_width() - decr->get_width();
- w += get_theme_constant(SNAME("hseparation"));
+ int ofs = tabs[offset].ofs_cache;
- Rect2 rb_rect;
- rb_rect.size = style->get_minimum_size() + rb->get_size();
- if (rtl) {
- rb_rect.position.x = size.width - w - rb_rect.size.x;
+ // Draw unselected tabs in the back.
+ for (int i = offset; i <= max_drawn_tab; i++) {
+ if (i != current) {
+ Ref<StyleBox> sb;
+ Color col;
+
+ if (tabs[i].disabled) {
+ sb = tab_disabled;
+ col = font_disabled_color;
+ } else if (i == current) {
+ sb = tab_selected;
+ col = font_selected_color;
} else {
- rb_rect.position.x = w;
+ sb = tab_unselected;
+ col = font_unselected_color;
}
- rb_rect.position.y = sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - (rb_rect.size.y)) / 2;
- if (rb_hover == i) {
- if (rb_pressing) {
- get_theme_stylebox(SNAME("button_pressed"))->draw(ci, rb_rect);
- } else {
- style->draw(ci, rb_rect);
- }
- }
-
- if (rtl) {
- rb->draw(ci, Point2i(size.width - w - rb_rect.size.x + style->get_margin(SIDE_LEFT), rb_rect.position.y + style->get_margin(SIDE_TOP)));
- } else {
- rb->draw(ci, Point2i(w + style->get_margin(SIDE_LEFT), rb_rect.position.y + style->get_margin(SIDE_TOP)));
- }
- w += rb->get_width();
- tabs.write[i].rb_rect = rb_rect;
+ _draw_tab(sb, col, i, rtl ? size.width - ofs - tabs[i].size_cache : ofs);
}
- if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && i == current)) {
- Ref<StyleBox> style = get_theme_stylebox(SNAME("close_bg_highlight"));
- Ref<Texture2D> cb = close;
-
- w += get_theme_constant(SNAME("hseparation"));
-
- Rect2 cb_rect;
- cb_rect.size = style->get_minimum_size() + cb->get_size();
- if (rtl) {
- cb_rect.position.x = size.width - w - cb_rect.size.x;
- } else {
- cb_rect.position.x = w;
- }
- cb_rect.position.y = sb->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - (cb_rect.size.y)) / 2;
-
- if (!tabs[i].disabled && cb_hover == i) {
- if (cb_pressing) {
- get_theme_stylebox(SNAME("close_bg_pressed"))->draw(ci, cb_rect);
- } else {
- style->draw(ci, cb_rect);
- }
- }
+ ofs += tabs[i].size_cache;
+ }
- if (rtl) {
- cb->draw(ci, Point2i(size.width - w - cb_rect.size.x + style->get_margin(SIDE_LEFT), cb_rect.position.y + style->get_margin(SIDE_TOP)));
- } else {
- cb->draw(ci, Point2i(w + style->get_margin(SIDE_LEFT), cb_rect.position.y + style->get_margin(SIDE_TOP)));
- }
- w += cb->get_width();
- tabs.write[i].cb_rect = cb_rect;
- }
+ // Draw selected tab in the front, but only if it's visible.
+ if (current >= offset && current <= max_drawn_tab) {
+ Ref<StyleBox> sb = tabs[current].disabled ? tab_disabled : tab_selected;
+ float x = rtl ? size.width - tabs[current].ofs_cache - tabs[current].size_cache : tabs[current].ofs_cache;
- w += sb->get_margin(SIDE_RIGHT);
+ _draw_tab(sb, font_selected_color, current, x);
}
if (offset > 0 || missing_right) {
@@ -501,18 +379,96 @@ void TabBar::_notification(int p_what) {
draw_texture(incr, Point2(limit_minus_buttons + decr->get_size().width, vofs), Color(1, 1, 1, 0.5));
}
}
+ }
+ } break;
+ }
+}
+
+void TabBar::_draw_tab(Ref<StyleBox> &p_tab_style, Color &p_font_color, int p_index, float p_x) {
+ RID ci = get_canvas_item();
+
+ Color font_outline_color = get_theme_color(SNAME("font_outline_color"));
+ int outline_size = get_theme_constant(SNAME("outline_size"));
+
+ Tab tab = tabs[p_index];
+
+ Rect2 sb_rect = Rect2(p_x, 0, tab.size_cache, get_size().height);
+ p_tab_style->draw(ci, sb_rect);
+
+ p_x += p_tab_style->get_margin(SIDE_LEFT);
+
+ Size2i sb_ms = p_tab_style->get_minimum_size();
+
+ Ref<Texture2D> icon = tab.icon;
+ if (icon.is_valid()) {
+ icon->draw(ci, Point2i(p_x, p_tab_style->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - icon->get_height()) / 2));
+
+ if (!tab.text.is_empty()) {
+ p_x += icon->get_width() + get_theme_constant(SNAME("hseparation"));
+ }
+ }
+
+ Vector2 text_pos = Point2i(p_x, p_tab_style->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - tab.text_buf->get_size().y) / 2);
+ if (outline_size > 0 && font_outline_color.a > 0) {
+ tab.text_buf->draw_outline(ci, text_pos, outline_size, font_outline_color);
+ }
+ tab.text_buf->draw(ci, text_pos, p_font_color);
+
+ p_x += tab.size_text;
- buttons_visible = true;
+ if (tab.right_button.is_valid()) {
+ Ref<StyleBox> style = get_theme_stylebox(SNAME("close_bg_highlight"));
+ Ref<Texture2D> rb = tab.right_button;
+
+ p_x += get_theme_constant(SNAME("hseparation"));
+
+ Rect2 rb_rect;
+ rb_rect.size = style->get_minimum_size() + rb->get_size();
+ rb_rect.position.x = p_x;
+ rb_rect.position.y = p_tab_style->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - (rb_rect.size.y)) / 2;
+
+ if (rb_hover == p_index) {
+ if (rb_pressing) {
+ get_theme_stylebox(SNAME("button_pressed"))->draw(ci, rb_rect);
} else {
- buttons_visible = false;
+ style->draw(ci, rb_rect);
}
- } break;
+ }
+
+ rb->draw(ci, Point2i(p_x + style->get_margin(SIDE_LEFT), rb_rect.position.y + style->get_margin(SIDE_TOP)));
+ p_x += rb->get_width();
+ tabs.write[p_index].rb_rect = rb_rect;
+ }
+
+ if (cb_displaypolicy == CLOSE_BUTTON_SHOW_ALWAYS || (cb_displaypolicy == CLOSE_BUTTON_SHOW_ACTIVE_ONLY && p_index == current)) {
+ Ref<StyleBox> style = get_theme_stylebox(SNAME("close_bg_highlight"));
+ Ref<Texture2D> cb = get_theme_icon(SNAME("close"));
+
+ p_x += get_theme_constant(SNAME("hseparation"));
+
+ Rect2 cb_rect;
+ cb_rect.size = style->get_minimum_size() + cb->get_size();
+ cb_rect.position.x = p_x;
+ cb_rect.position.y = p_tab_style->get_margin(SIDE_TOP) + ((sb_rect.size.y - sb_ms.y) - (cb_rect.size.y)) / 2;
+
+ if (!tab.disabled && cb_hover == p_index) {
+ if (cb_pressing) {
+ get_theme_stylebox(SNAME("close_bg_pressed"))->draw(ci, cb_rect);
+ } else {
+ style->draw(ci, cb_rect);
+ }
+ }
+
+ cb->draw(ci, Point2i(p_x + style->get_margin(SIDE_LEFT), cb_rect.position.y + style->get_margin(SIDE_TOP)));
+ p_x += cb->get_width();
+ tabs.write[p_index].cb_rect = cb_rect;
}
}
void TabBar::set_tab_count(int p_count) {
ERR_FAIL_COND(p_count < 0);
tabs.resize(p_count);
+ _update_cache();
update();
notify_property_list_changed();
}
@@ -560,6 +516,7 @@ void TabBar::set_tab_title(int p_tab, const String &p_title) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].text = p_title;
_shape(p_tab);
+ _update_cache();
update();
update_minimum_size();
}
@@ -588,6 +545,7 @@ void TabBar::clear_tab_opentype_features(int p_tab) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].opentype_features.clear();
_shape(p_tab);
+ _update_cache();
update();
}
@@ -597,6 +555,7 @@ void TabBar::set_tab_opentype_feature(int p_tab, const String &p_name, int p_val
if (!tabs[p_tab].opentype_features.has(tag) || (int)tabs[p_tab].opentype_features[tag] != p_value) {
tabs.write[p_tab].opentype_features[tag] = p_value;
_shape(p_tab);
+ _update_cache();
update();
}
}
@@ -627,6 +586,7 @@ String TabBar::get_tab_language(int p_tab) const {
void TabBar::set_tab_icon(int p_tab, const Ref<Texture2D> &p_icon) {
ERR_FAIL_INDEX(p_tab, tabs.size());
tabs.write[p_tab].icon = p_icon;
+ _update_cache();
update();
update_minimum_size();
}
@@ -698,33 +658,43 @@ void TabBar::_update_hover() {
}
void TabBar::_update_cache() {
+ if (tabs.is_empty()) {
+ return;
+ }
+
Ref<StyleBox> tab_disabled = get_theme_stylebox(SNAME("tab_disabled"));
Ref<StyleBox> tab_unselected = get_theme_stylebox(SNAME("tab_unselected"));
Ref<StyleBox> tab_selected = get_theme_stylebox(SNAME("tab_selected"));
Ref<Texture2D> incr = get_theme_icon(SNAME("increment"));
Ref<Texture2D> decr = get_theme_icon(SNAME("decrement"));
- int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
+
+ int limit = get_size().width;
+ int limit_minus_buttons = limit - incr->get_width() - decr->get_width();
int w = 0;
int mw = 0;
int size_fixed = 0;
int count_resize = 0;
+
for (int i = 0; i < tabs.size(); i++) {
- tabs.write[i].ofs_cache = mw;
+ tabs.write[i].ofs_cache = 0;
tabs.write[i].size_cache = get_tab_width(i);
tabs.write[i].size_text = Math::ceil(tabs[i].text_buf->get_size().x);
tabs.write[i].text_buf->set_width(-1);
mw += tabs[i].size_cache;
+
if (tabs[i].size_cache <= min_width || i == current) {
size_fixed += tabs[i].size_cache;
} else {
count_resize++;
}
}
+
int m_width = min_width;
if (count_resize > 0) {
m_width = MAX((limit_minus_buttons - size_fixed) / count_resize, min_width);
}
+
for (int i = offset; i < tabs.size(); i++) {
Ref<StyleBox> sb;
if (tabs[i].disabled) {
@@ -734,11 +704,13 @@ void TabBar::_update_cache() {
} else {
sb = tab_unselected;
}
+
int lsize = tabs[i].size_cache;
int slen = tabs[i].size_text;
if (min_width > 0 && mw > limit_minus_buttons && i != current) {
if (lsize > m_width) {
slen = m_width - (sb->get_margin(SIDE_LEFT) + sb->get_margin(SIDE_RIGHT));
+
if (tabs[i].icon.is_valid()) {
slen -= tabs[i].icon->get_width();
slen -= get_theme_constant(SNAME("hseparation"));
@@ -748,15 +720,52 @@ void TabBar::_update_cache() {
slen -= cb->get_width();
slen -= get_theme_constant(SNAME("hseparation"));
}
+
slen = MAX(slen, 1);
lsize = m_width;
}
}
+
tabs.write[i].ofs_cache = w;
tabs.write[i].size_cache = lsize;
tabs.write[i].size_text = slen;
tabs.write[i].text_buf->set_width(slen);
+
w += lsize;
+ max_drawn_tab = i;
+
+ // Check if all tabs would fit inside the area.
+ if (i > offset && (w > limit || (offset > 0 && w > limit_minus_buttons))) {
+ w -= get_tab_width(i);
+ max_drawn_tab -= 1;
+
+ while (w > limit_minus_buttons && max_drawn_tab > offset) {
+ w -= get_tab_width(max_drawn_tab);
+ max_drawn_tab -= 1;
+ }
+
+ break;
+ }
+ }
+
+ missing_right = max_drawn_tab < tabs.size() - 1;
+ buttons_visible = offset > 0 || missing_right;
+
+ if (tab_alignment == ALIGNMENT_LEFT) {
+ return;
+ } else if (tab_alignment == ALIGNMENT_CENTER) {
+ w = ((buttons_visible ? limit_minus_buttons : limit) - w) / 2;
+ } else if (tab_alignment == ALIGNMENT_RIGHT) {
+ w = (buttons_visible ? limit_minus_buttons : limit) - w;
+ }
+
+ if (w < 0) {
+ w = 0;
+ }
+
+ for (int i = offset; i <= max_drawn_tab; i++) {
+ tabs.write[i].ofs_cache = w;
+ w += tabs.write[i].size_cache;
}
}
@@ -916,10 +925,10 @@ void TabBar::drop_data(const Point2 &p_point, const Variant &p_data) {
set_current_tab(hover_now);
emit_signal(SNAME("tab_changed"), hover_now);
_update_cache();
+ update();
}
}
}
- update();
}
int TabBar::get_tab_idx_at_point(const Point2 &p_point) const {
@@ -937,6 +946,7 @@ int TabBar::get_tab_idx_at_point(const Point2 &p_point) const {
void TabBar::set_tab_alignment(AlignmentMode p_alignment) {
ERR_FAIL_INDEX(p_alignment, ALIGNMENT_MAX);
tab_alignment = p_alignment;
+ _update_cache();
update();
}
@@ -949,6 +959,7 @@ void TabBar::set_clip_tabs(bool p_clip_tabs) {
return;
}
clip_tabs = p_clip_tabs;
+ _update_cache();
update();
update_minimum_size();
}
@@ -1017,64 +1028,73 @@ int TabBar::get_tab_width(int p_idx) const {
}
void TabBar::_ensure_no_over_offset() {
- if (!is_inside_tree()) {
+ if (!is_inside_tree() || !buttons_visible) {
return;
}
Ref<Texture2D> incr = get_theme_icon(SNAME("increment"));
Ref<Texture2D> decr = get_theme_icon(SNAME("decrement"));
-
- int limit = get_size().width;
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
+ int prev_offset = offset;
+
+ int total_w = tabs[max_drawn_tab].ofs_cache + tabs[max_drawn_tab].size_cache - tabs[offset].ofs_cache;
while (offset > 0) {
- int total_w = 0;
- for (int i = offset - 1; i < tabs.size(); i++) {
- total_w += tabs[i].size_cache;
- }
+ total_w += tabs[offset - 1].size_cache;
- if ((buttons_visible && total_w < limit_minus_buttons) || total_w < limit) { // For the last tab, we accept if the tab covers the buttons.
+ if (total_w < limit_minus_buttons) {
offset--;
- update();
} else {
break;
}
}
-}
-void TabBar::ensure_tab_visible(int p_idx) {
- if (!is_inside_tree()) {
- return;
+ if (prev_offset != offset) {
+ _update_cache();
+ update();
}
+}
- if (tabs.size() == 0) {
+void TabBar::ensure_tab_visible(int p_idx) {
+ if (!is_inside_tree() || !buttons_visible) {
return;
}
ERR_FAIL_INDEX(p_idx, tabs.size());
- if (p_idx == offset) {
+ if (p_idx >= offset && p_idx <= max_drawn_tab) {
return;
}
+
if (p_idx < offset) {
offset = p_idx;
+ _update_cache();
update();
+
return;
}
- int prev_offset = offset;
Ref<Texture2D> incr = get_theme_icon(SNAME("increment"));
Ref<Texture2D> decr = get_theme_icon(SNAME("decrement"));
- int limit = get_size().width;
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
- for (int i = offset; i <= p_idx; i++) {
- int total_w = tabs[i].ofs_cache + tabs[i].size_cache;
- if (total_w > limit || (buttons_visible && total_w > limit_minus_buttons)) {
+ int total_w = tabs[max_drawn_tab].ofs_cache - tabs[offset].ofs_cache;
+ for (int i = max_drawn_tab; i <= p_idx; i++) {
+ total_w += tabs[i].size_cache;
+ }
+
+ int prev_offset = offset;
+
+ for (int i = offset; i < p_idx; i++) {
+ if (total_w > limit_minus_buttons) {
+ total_w -= tabs[i].size_cache;
offset++;
+ } else {
+ break;
}
}
if (prev_offset != offset) {
+ _update_cache();
update();
}
}
@@ -1091,6 +1111,7 @@ Rect2 TabBar::get_tab_rect(int p_tab) const {
void TabBar::set_tab_close_display_policy(CloseButtonDisplayPolicy p_policy) {
ERR_FAIL_INDEX(p_policy, CLOSE_BUTTON_MAX);
cb_displaypolicy = p_policy;
+ _update_cache();
update();
}