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DragScalarN, SliderScalarN, InputScalarN, PushMultiItemsWidths: improve multi-components width computation to better distribute the error. (#7120, #7121)

This commit is contained in:
Nahor 2023-12-11 14:01:22 -08:00 committed by ocornut
parent 03298fe875
commit 86512eac06
2 changed files with 11 additions and 7 deletions
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2
docs/CHANGELOG.txt
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@ -64,6 +64,8 @@ Other changes:
- Drag and Drop: Fixed drop target highlight on items temporarily pushing a widened clip rect
(namely Selectables and Treenodes using SpanAllColumn flag) so the highlight properly covers
all columns. (#7049, #4281, #3272)
- DragScalarN, SliderScalarN, InputScalarN, PushMultiItemsWidths: improve multi-components
width computation to better distribute the error. (#7120, #7121) [@Nahor]
- Menus: Tweaked hover slack logic, adding a timer to avoid situations where a slow vertical
movements toward another parent BeginMenu() can keep the wrong child menu open. (#6671, #6926)
- Debug Tools: Added DebugFlashStyleColor() to identify a style color. Added to Style Editor.

16
imgui.cpp
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@ -9862,14 +9862,16 @@ void ImGui::PushMultiItemsWidths(int components, float w_full)
ImGuiWindow* window = g.CurrentWindow;
IM_ASSERT(components > 0);
const ImGuiStyle& style = g.Style;
const float w_item_one = ImMax(1.0f, IM_TRUNC((w_full - (style.ItemInnerSpacing.x) * (components - 1)) / (float)components));
const float w_item_last = ImMax(1.0f, IM_TRUNC(w_full - (w_item_one + style.ItemInnerSpacing.x) * (components - 1)));
window->DC.ItemWidthStack.push_back(window->DC.ItemWidth); // Backup current width
if (components > 1)
window->DC.ItemWidthStack.push_back(w_item_last);
for (int i = 0; i < components - 2; i++)
window->DC.ItemWidthStack.push_back(w_item_one);
window->DC.ItemWidth = (components == 1) ? w_item_last : w_item_one;
float w_items = w_full - style.ItemInnerSpacing.x * (components - 1);
float prev_split = w_items;
for (int i = components - 1; i > 0; i--)
{
float next_split = IM_TRUNC(w_items * i / components);
window->DC.ItemWidthStack.push_back(prev_split - next_split);
prev_split = next_split;
}
window->DC.ItemWidth = prev_split;
g.NextItemData.Flags &= ~ImGuiNextItemDataFlags_HasWidth;
}