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Tables: Fixed an issue with ScrollX enabled where an extraneous draw command would be created.

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Randomly found while deep-diving into #6765.
ContentMaxXHeadersUsed has been set to max since the dawn of tables, which contradict the intent of passing zero-width to ItemSize(). The ItemSize code allowed SameLine() to operate, but this mistake setting ContentMaxXHeadersUsed would make right-most visible column in a ScrollX set incorrectly use a draw command due to header claiming whole column width.
This commit is contained in:
ocornut
2023-10-16 21:33:51 +02:00
parent 947255c3da
commit 8db02ef8df
2 changed files with 7 additions and 3 deletions
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7
imgui_tables.cpp
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@ -3015,11 +3015,14 @@ void ImGui::TableHeader(const char* label)
// Calculate ideal size for sort order arrow
float w_arrow = 0.0f;
float w_sort_text = 0.0f;
bool sort_arrow = false;
char sort_order_suf[4] = "";
const float ARROW_SCALE = 0.65f;
if ((table->Flags & ImGuiTableFlags_Sortable) && !(column->Flags & ImGuiTableColumnFlags_NoSort))
{
w_arrow = ImTrunc(g.FontSize * ARROW_SCALE + g.Style.FramePadding.x);
if (column->SortOrder != -1)
sort_arrow = true;
if (column->SortOrder > 0)
{
ImFormatString(sort_order_suf, IM_ARRAYSIZE(sort_order_suf), "%d", column->SortOrder + 1);
@ -3027,9 +3030,9 @@ void ImGui::TableHeader(const char* label)
}
}
// We feed our unclipped width to the column without writing on CursorMaxPos, so that column is still considering for merging.
// We feed our unclipped width to the column without writing on CursorMaxPos, so that column is still considered for merging.
float max_pos_x = label_pos.x + label_size.x + w_sort_text + w_arrow;
column->ContentMaxXHeadersUsed = ImMax(column->ContentMaxXHeadersUsed, column->WorkMaxX);
column->ContentMaxXHeadersUsed = ImMax(column->ContentMaxXHeadersUsed, sort_arrow ? cell_r.Max.x : ImMin(max_pos_x, cell_r.Max.x));
column->ContentMaxXHeadersIdeal = ImMax(column->ContentMaxXHeadersIdeal, max_pos_x);
// Keep header highlighted when context menu is open.