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Merge branch 'master' into docking

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# Conflicts:
#	imgui.cpp
#	imgui_internal.h
This commit is contained in:
ocornut
2025-07-31 23:44:44 +09:00
parent 63f00dae6b 320c94bfaa
commit 23c9362550
7 changed files with 112 additions and 45 deletions
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imgui_widgets.cpp
+37 -13
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@@ -1836,27 +1836,31 @@ static int IMGUI_CDECL ShrinkWidthItemComparer(const void* lhs, const void* rhs)
// Shrink excess width from a set of item, by removing width from the larger items first.
// Set items Width to -1.0f to disable shrinking this item.
void ImGui::ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess)
void ImGui::ShrinkWidths(ImGuiShrinkWidthItem* items, int count, float width_excess, float width_min)
{
if (count == 1)
{
if (items[0].Width >= 0.0f)
items[0].Width = ImMax(items[0].Width - width_excess, 1.0f);
items[0].Width = ImMax(items[0].Width - width_excess, width_min);
return;
}
ImQsort(items, (size_t)count, sizeof(ImGuiShrinkWidthItem), ShrinkWidthItemComparer);
ImQsort(items, (size_t)count, sizeof(ImGuiShrinkWidthItem), ShrinkWidthItemComparer); // Sort largest first, smallest last.
int count_same_width = 1;
while (width_excess > 0.0f && count_same_width < count)
{
while (count_same_width < count && items[0].Width <= items[count_same_width].Width)
count_same_width++;
float max_width_to_remove_per_item = (count_same_width < count && items[count_same_width].Width >= 0.0f) ? (items[0].Width - items[count_same_width].Width) : (items[0].Width - 1.0f);
max_width_to_remove_per_item = ImMin(items[0].Width - width_min, max_width_to_remove_per_item);
if (max_width_to_remove_per_item <= 0.0f)
break;
float width_to_remove_per_item = ImMin(width_excess / count_same_width, max_width_to_remove_per_item);
float base_width_to_remove_per_item = ImMin(width_excess / count_same_width, max_width_to_remove_per_item);
for (int item_n = 0; item_n < count_same_width; item_n++)
items[item_n].Width -= width_to_remove_per_item;
width_excess -= width_to_remove_per_item * count_same_width;
{
float width_to_remove_for_this_item = ImMin(base_width_to_remove_per_item, items[item_n].Width - width_min);
items[item_n].Width -= width_to_remove_for_this_item;
width_excess -= width_to_remove_for_this_item;
}
}
// Round width and redistribute remainder
@@ -9371,6 +9375,7 @@ struct ImGuiTabBarSection
{
int TabCount; // Number of tabs in this section.
float Width; // Sum of width of tabs in this section (after shrinking down)
float WidthAfterShrinkMinWidth;
float Spacing; // Horizontal spacing at the end of the section.
ImGuiTabBarSection() { memset(this, 0, sizeof(*this)); }
@@ -9442,8 +9447,8 @@ bool ImGui::BeginTabBar(const char* str_id, ImGuiTabBarFlags flags)
ImGuiTabBar* tab_bar = g.TabBars.GetOrAddByKey(id);
ImRect tab_bar_bb = ImRect(window->DC.CursorPos.x, window->DC.CursorPos.y, window->WorkRect.Max.x, window->DC.CursorPos.y + g.FontSize + g.Style.FramePadding.y * 2);
tab_bar->ID = id;
tab_bar->SeparatorMinX = tab_bar->BarRect.Min.x - IM_TRUNC(window->WindowPadding.x * 0.5f);
tab_bar->SeparatorMaxX = tab_bar->BarRect.Max.x + IM_TRUNC(window->WindowPadding.x * 0.5f);
tab_bar->SeparatorMinX = tab_bar_bb.Min.x - IM_TRUNC(window->WindowPadding.x * 0.5f);
tab_bar->SeparatorMaxX = tab_bar_bb.Max.x + IM_TRUNC(window->WindowPadding.x * 0.5f);
//if (g.NavWindow && IsWindowChildOf(g.NavWindow, window, false, false))
flags |= ImGuiTabBarFlags_IsFocused;
return BeginTabBarEx(tab_bar, tab_bar_bb, flags);
@@ -9564,6 +9569,10 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
ImGuiContext& g = *GImGui;
tab_bar->WantLayout = false;
// Track selected tab when resizing our parent down
const bool scroll_to_selected_tab = (tab_bar->BarRectPrevWidth > tab_bar->BarRect.GetWidth());
tab_bar->BarRectPrevWidth = tab_bar->BarRect.GetWidth();
// Garbage collect by compacting list
// Detect if we need to sort out tab list (e.g. in rare case where a tab changed section)
int tab_dst_n = 0;
@@ -9640,6 +9649,9 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
int shrink_buffer_indexes[3] = { 0, sections[0].TabCount + sections[2].TabCount, sections[0].TabCount };
g.ShrinkWidthBuffer.resize(tab_bar->Tabs.Size);
// Minimum shrink width
const float shrink_min_width = (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyMixed) ? g.Style.TabMinWidthShrink : 1.0f;
// Compute ideal tabs widths + store them into shrink buffer
ImGuiTabItem* most_recently_selected_tab = NULL;
int curr_section_n = -1;
@@ -9662,10 +9674,13 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
const char* tab_name = TabBarGetTabName(tab_bar, tab);
const bool has_close_button_or_unsaved_marker = (tab->Flags & ImGuiTabItemFlags_NoCloseButton) == 0 || (tab->Flags & ImGuiTabItemFlags_UnsavedDocument);
tab->ContentWidth = (tab->RequestedWidth >= 0.0f) ? tab->RequestedWidth : TabItemCalcSize(tab_name, has_close_button_or_unsaved_marker).x;
if ((tab->Flags & ImGuiTabItemFlags_Button) == 0)
tab->ContentWidth = ImMax(tab->ContentWidth, g.Style.TabMinWidthBase);
int section_n = TabItemGetSectionIdx(tab);
ImGuiTabBarSection* section = &sections[section_n];
section->Width += tab->ContentWidth + (section_n == curr_section_n ? g.Style.ItemInnerSpacing.x : 0.0f);
section->WidthAfterShrinkMinWidth += ImMin(tab->ContentWidth, shrink_min_width) + (section_n == curr_section_n ? g.Style.ItemInnerSpacing.x : 0.0f);
curr_section_n = section_n;
// Store data so we can build an array sorted by width if we need to shrink tabs down
@@ -9677,19 +9692,27 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
}
// Compute total ideal width (used for e.g. auto-resizing a window)
float width_all_tabs_after_min_width_shrink = 0.0f;
tab_bar->WidthAllTabsIdeal = 0.0f;
for (int section_n = 0; section_n < 3; section_n++)
{
tab_bar->WidthAllTabsIdeal += sections[section_n].Width + sections[section_n].Spacing;
width_all_tabs_after_min_width_shrink += sections[section_n].WidthAfterShrinkMinWidth + sections[section_n].Spacing;
}
// Horizontal scrolling buttons
// (note that TabBarScrollButtons() will alter BarRect.Max.x)
if ((tab_bar->WidthAllTabsIdeal > tab_bar->BarRect.GetWidth() && tab_bar->Tabs.Size > 1) && !(tab_bar->Flags & ImGuiTabBarFlags_NoTabListScrollingButtons) && (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll))
// Important: note that TabBarScrollButtons() will alter BarRect.Max.x.
const bool can_scroll = (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll) || (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyMixed);
tab_bar->ScrollButtonEnabled = ((width_all_tabs_after_min_width_shrink > tab_bar->BarRect.GetWidth() && tab_bar->Tabs.Size > 1) && !(tab_bar->Flags & ImGuiTabBarFlags_NoTabListScrollingButtons) && can_scroll);
if (tab_bar->ScrollButtonEnabled)
if (ImGuiTabItem* scroll_and_select_tab = TabBarScrollingButtons(tab_bar))
{
scroll_to_tab_id = scroll_and_select_tab->ID;
if ((scroll_and_select_tab->Flags & ImGuiTabItemFlags_Button) == 0)
tab_bar->SelectedTabId = scroll_to_tab_id;
}
if (scroll_to_tab_id == 0 && scroll_to_selected_tab)
scroll_to_tab_id = tab_bar->SelectedTabId;
// Shrink widths if full tabs don't fit in their allocated space
float section_0_w = sections[0].Width + sections[0].Spacing;
@@ -9703,11 +9726,12 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
width_excess = (section_0_w + section_2_w) - tab_bar->BarRect.GetWidth(); // Excess used to shrink leading/trailing section
// With ImGuiTabBarFlags_FittingPolicyScroll policy, we will only shrink leading/trailing if the central section is not visible anymore
if (width_excess >= 1.0f && ((tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyResizeDown) || !central_section_is_visible))
const bool can_shrink = (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyShrink) || (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyMixed);
if (width_excess >= 1.0f && (can_shrink || !central_section_is_visible))
{
int shrink_data_count = (central_section_is_visible ? sections[1].TabCount : sections[0].TabCount + sections[2].TabCount);
int shrink_data_offset = (central_section_is_visible ? sections[0].TabCount + sections[2].TabCount : 0);
ShrinkWidths(g.ShrinkWidthBuffer.Data + shrink_data_offset, shrink_data_count, width_excess);
ShrinkWidths(g.ShrinkWidthBuffer.Data + shrink_data_offset, shrink_data_count, width_excess, shrink_min_width);
// Apply shrunk values into tabs and sections
for (int tab_n = shrink_data_offset; tab_n < shrink_data_offset + shrink_data_count; tab_n++)
@@ -9766,7 +9790,7 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
// Apply request requests
if (scroll_to_tab_id != 0)
TabBarScrollToTab(tab_bar, scroll_to_tab_id, sections);
else if ((tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll) && IsMouseHoveringRect(tab_bar->BarRect.Min, tab_bar->BarRect.Max, true) && IsWindowContentHoverable(g.CurrentWindow))
else if (tab_bar->ScrollButtonEnabled && IsMouseHoveringRect(tab_bar->BarRect.Min, tab_bar->BarRect.Max, true) && IsWindowContentHoverable(g.CurrentWindow))
{
const float wheel = g.IO.MouseWheelRequestAxisSwap ? g.IO.MouseWheel : g.IO.MouseWheelH;
const ImGuiKey wheel_key = g.IO.MouseWheelRequestAxisSwap ? ImGuiKey_MouseWheelY : ImGuiKey_MouseWheelX;