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Fix TabContainer not showing tabs on left when resizing.

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Fix #19510.
This commit is contained in:
Guilherme Felipe 2018-06-12 14:22:41 -03:00
parent d5bb6faac7
commit b904c37a54
1 changed files with 40 additions and 0 deletions
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40
scene/gui/tab_container.cpp
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@ -143,6 +143,42 @@ void TabContainer::_notification(int p_what) {
switch (p_what) {
case NOTIFICATION_RESIZED: {
Vector<Control *> tabs = _get_tabs();
int side_margin = get_constant("side_margin");
Ref<Texture> menu = get_icon("menu");
Ref<Texture> increment = get_icon("increment");
Ref<Texture> decrement = get_icon("decrement");
int header_width = get_size().width - side_margin * 2;
// Find the width of the header area.
if (popup)
header_width -= menu->get_width();
if (buttons_visible_cache)
header_width -= increment->get_width() + decrement->get_width();
if (popup || buttons_visible_cache)
header_width += side_margin;
// Find the width of all tabs after first_tab_cache.
int all_tabs_width = 0;
for (int i = first_tab_cache; i < tabs.size(); i++) {
int tab_width = _get_tab_width(i);
all_tabs_width += tab_width;
}
// Check if tabs before first_tab_cache would fit into the header area.
for (int i = first_tab_cache - 1; i >= 0; i--) {
int tab_width = _get_tab_width(i);
if (all_tabs_width + tab_width > header_width)
break;
all_tabs_width += tab_width;
first_tab_cache--;
}
} break;
case NOTIFICATION_DRAW: {
RID canvas = get_canvas_item();
@ -197,6 +233,10 @@ void TabContainer::_notification(int p_what) {
header_width += side_margin;
}
if (!buttons_visible_cache) {
first_tab_cache = 0;
}
// Go through the visible tabs to find the width they occupy.
all_tabs_width = 0;
Vector<int> tab_widths;