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Backported from Godot4: Implement Tabs minimum size.

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- groud
898a2a7cf3
This commit is contained in:
Relintai 2024-03-07 21:57:49 +01:00
parent 12a6e10ddd
commit be0b5b5bdc
3 changed files with 55 additions and 18 deletions
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3
doc/classes/Tabs.xml
View File

@ -173,6 +173,9 @@
</method>
</methods>
<members>
<member name="clip_tabs" type="bool" setter="set_clip_tabs" getter="get_clip_tabs" default="true">
If [code]true[/code], tabs overflowing this node's width will be hidden, displaying two navigation buttons instead. Otherwise, this node's minimum size is updated so that all tabs are visible.
</member>
<member name="current_tab" type="int" setter="set_current_tab" getter="get_current_tab" default="0">
Select tab at index [code]tab_idx[/code].
</member>

66
scene/gui/tabs.cpp
View File

@ -80,7 +80,10 @@ Size2 Tabs::get_minimum_size() const {
}
}
ms.width = 0; // TODO: should make this optional.
if (clip_tabs) {
ms.width = 0;
}
return ms;
}
@ -94,14 +97,14 @@ void Tabs::_gui_input(const Ref<InputEvent> &p_event) {
Ref<Texture> incr = get_theme_icon("increment");
Ref<Texture> decr = get_theme_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
if (pos.x > limit + decr->get_width()) {
if (pos.x > limit_minus_buttons + decr->get_width()) {
if (highlight_arrow != 1) {
highlight_arrow = 1;
update();
}
} else if (pos.x > limit) {
} else if (pos.x > limit_minus_buttons) {
if (highlight_arrow != 0) {
highlight_arrow = 0;
update();
@ -166,7 +169,7 @@ void Tabs::_gui_input(const Ref<InputEvent> &p_event) {
Ref<Texture> incr = get_theme_icon("increment");
Ref<Texture> decr = get_theme_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
int limit = get_size().width - incr->get_size().width - decr->get_size().width;
if (pos.x > limit + decr->get_width()) {
if (missing_right) {
@ -272,7 +275,8 @@ void Tabs::_notification(int p_what) {
Ref<Texture> incr_hl = get_theme_icon("increment_highlight");
Ref<Texture> decr_hl = get_theme_icon("decrement_highlight");
int limit = get_size().width - incr->get_size().width - decr->get_size().width;
int limit = get_size().width;
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
missing_right = false;
@ -299,7 +303,8 @@ void Tabs::_notification(int p_what) {
col = color_bg;
}
if (w + lsize > limit) {
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;
@ -380,15 +385,15 @@ void Tabs::_notification(int p_what) {
int vofs = (get_size().height - incr->get_size().height) / 2;
if (offset > 0) {
draw_texture(highlight_arrow == 0 ? decr_hl : decr, Point2(limit, vofs));
draw_texture(highlight_arrow == 0 ? decr_hl : decr, Point2(limit_minus_buttons, vofs));
} else {
draw_texture(decr, Point2(limit, vofs), Color(1, 1, 1, 0.5));
draw_texture(decr, Point2(limit_minus_buttons, vofs), Color(1, 1, 1, 0.5));
}
if (missing_right) {
draw_texture(highlight_arrow == 1 ? incr_hl : incr, Point2(limit + decr->get_size().width, vofs));
draw_texture(highlight_arrow == 1 ? incr_hl : incr, Point2(limit_minus_buttons + decr->get_size().width, vofs));
} else {
draw_texture(incr, Point2(limit + decr->get_size().width, vofs), Color(1, 1, 1, 0.5));
draw_texture(incr, Point2(limit_minus_buttons + decr->get_size().width, vofs), Color(1, 1, 1, 0.5));
}
buttons_visible = true;
@ -549,7 +554,8 @@ void Tabs::_update_cache() {
Ref<Font> font = get_theme_font("font");
Ref<Texture> incr = get_theme_icon("increment");
Ref<Texture> decr = get_theme_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
int w = 0;
int mw = 0;
@ -568,7 +574,7 @@ void Tabs::_update_cache() {
}
int m_width = min_width;
if (count_resize > 0) {
m_width = MAX((limit - size_fixed) / count_resize, min_width);
m_width = MAX((limit_minus_buttons - size_fixed) / count_resize, min_width);
}
for (int i = 0; i < tabs.size(); i++) {
if (i < offset) {
@ -584,7 +590,7 @@ void Tabs::_update_cache() {
}
int lsize = tabs[i].size_cache;
int slen = tabs[i].size_text;
if (min_width > 0 && mw > limit && i != current) {
if (min_width > 0 && mw > limit_minus_buttons && i != current) {
if (lsize > m_width) {
slen = m_width - (sb->get_margin(MARGIN_LEFT) + sb->get_margin(MARGIN_RIGHT));
if (tabs[i].icon.is_valid()) {
@ -790,6 +796,19 @@ Tabs::TabAlign Tabs::get_tab_align() const {
return tab_align;
}
void Tabs::set_clip_tabs(bool p_clip_tabs) {
if (clip_tabs == p_clip_tabs) {
return;
}
clip_tabs = p_clip_tabs;
update();
minimum_size_changed();
}
bool Tabs::get_clip_tabs() const {
return clip_tabs;
}
void Tabs::move_tab(int from, int to) {
if (from == to) {
return;
@ -857,7 +876,8 @@ void Tabs::_ensure_no_over_offset() {
Ref<Texture> incr = get_theme_icon("increment");
Ref<Texture> decr = get_theme_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
int limit = get_size().width;
int limit_minus_buttons = get_size().width - incr->get_width() - decr->get_width();
while (offset > 0) {
int total_w = 0;
@ -869,7 +889,7 @@ void Tabs::_ensure_no_over_offset() {
total_w += tabs[i].size_cache;
}
if (total_w < limit) {
if ((buttons_visible && total_w < limit_minus_buttons) || total_w < limit) { // For the last tab, we accept if the tab covers the buttons.
offset--;
update();
} else {
@ -886,11 +906,13 @@ void Tabs::ensure_tab_visible(int p_idx) {
if (tabs.size() == 0) {
return;
}
ERR_FAIL_INDEX(p_idx, tabs.size());
if (p_idx == offset) {
return;
}
if (p_idx < offset) {
offset = p_idx;
update();
@ -900,9 +922,13 @@ void Tabs::ensure_tab_visible(int p_idx) {
int prev_offset = offset;
Ref<Texture> incr = get_theme_icon("increment");
Ref<Texture> decr = get_theme_icon("decrement");
int limit = get_size().width - incr->get_width() - decr->get_width();
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++) {
if (tabs[i].ofs_cache + tabs[i].size_cache > limit) {
int total_w = tabs[i].ofs_cache + tabs[i].size_cache;
if (total_w > limit || (buttons_visible && total_w > limit_minus_buttons)) {
offset++;
}
}
@ -984,6 +1010,8 @@ void Tabs::_bind_methods() {
ClassDB::bind_method(D_METHOD("add_tab", "title", "icon"), &Tabs::add_tab, DEFVAL(""), DEFVAL(Ref<Texture>()));
ClassDB::bind_method(D_METHOD("set_tab_align", "align"), &Tabs::set_tab_align);
ClassDB::bind_method(D_METHOD("get_tab_align"), &Tabs::get_tab_align);
ClassDB::bind_method(D_METHOD("set_clip_tabs", "clip_tabs"), &Tabs::set_clip_tabs);
ClassDB::bind_method(D_METHOD("get_clip_tabs"), &Tabs::get_clip_tabs);
ClassDB::bind_method(D_METHOD("get_tab_offset"), &Tabs::get_tab_offset);
ClassDB::bind_method(D_METHOD("get_offset_buttons_visible"), &Tabs::get_offset_buttons_visible);
ClassDB::bind_method(D_METHOD("ensure_tab_visible", "idx"), &Tabs::ensure_tab_visible);
@ -1010,6 +1038,7 @@ void Tabs::_bind_methods() {
ADD_PROPERTY(PropertyInfo(Variant::INT, "current_tab", PROPERTY_HINT_RANGE, "-1,4096,1", PROPERTY_USAGE_EDITOR), "set_current_tab", "get_current_tab");
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_align", PROPERTY_HINT_ENUM, "Left,Center,Right"), "set_tab_align", "get_tab_align");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "clip_tabs"), "set_clip_tabs", "get_clip_tabs");
ADD_PROPERTY(PropertyInfo(Variant::INT, "tab_close_display_policy", PROPERTY_HINT_ENUM, "Show Never,Show Active Only,Show Always"), "set_tab_close_display_policy", "get_tab_close_display_policy");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "scrolling_enabled"), "set_scrolling_enabled", "get_scrolling_enabled");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "drag_to_rearrange_enabled"), "set_drag_to_rearrange_enabled", "get_drag_to_rearrange_enabled");
@ -1030,6 +1059,7 @@ Tabs::Tabs() {
previous = 0;
tab_align = ALIGN_CENTER;
rb_hover = -1;
clip_tabs = true;
rb_pressing = false;
highlight_arrow = -1;

4
scene/gui/tabs.h
View File

@ -81,6 +81,7 @@ private:
int current;
int previous;
TabAlign tab_align;
bool clip_tabs;
int rb_hover;
bool rb_pressing;
@ -135,6 +136,9 @@ public:
void set_tab_align(TabAlign p_align);
TabAlign get_tab_align() const;
void set_clip_tabs(bool p_clip_tabs);
bool get_clip_tabs() const;
void move_tab(int from, int to);
void set_tab_close_display_policy(CloseButtonDisplayPolicy p_policy);