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Tables: Fixed an edge-case when no columns are visible + table scrollbar is visible + user code is always testing return value of TableSetColumnIndex() to coarse clip.

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This commit is contained in:
ocornut 2023-09-12 20:40:06 +02:00
parent c86ce70968
commit c32db3c72b
2 changed files with 14 additions and 0 deletions
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3
docs/CHANGELOG.txt
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@ -59,6 +59,9 @@ Other changes:
- Nav: Tabbing always enable nav highlight when ImGuiConfigFlags_NavEnableKeyboard is set.
Previously was inconsistent and only enabled when stepping through a non-input item.
(#6802, #3092, #5759, #787)
- Tables: Fixed an edge-case when no columns are visible + table scrollbar is visible + user
code is always testing return value of TableSetColumnIndex() to coarse clip. With an active
clipper it would have asserted. Without a clipper, the scrollbar range would be wrong.
- Tables: Request user to submit contents when outer host-window is requesting auto-resize,
so a scrolling table can contribute to initial window size. (#6510)
- Tables: Fixed subtle drawing overlap between borders in some situations.

11
imgui_tables.cpp
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@ -985,6 +985,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
// [Part 6] Setup final position, offset, skip/clip states and clipping rectangles, detect hovered column
// Process columns in their visible orders as we are comparing the visible order and adjusting host_clip_rect while looping.
int visible_n = 0;
bool has_at_least_one_column_requesting_output = false;
bool offset_x_frozen = (table->FreezeColumnsCount > 0);
float offset_x = ((table->FreezeColumnsCount > 0) ? table->OuterRect.Min.x : work_rect.Min.x) + table->OuterPaddingX - table->CellSpacingX1;
ImRect host_clip_rect = table->InnerClipRect;
@ -1069,6 +1070,8 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
column->IsSkipItems = !column->IsEnabled || table->HostSkipItems;
if (column->IsSkipItems)
IM_ASSERT(!is_visible);
if (column->IsRequestOutput && !column->IsSkipItems)
has_at_least_one_column_requesting_output = true;
// Update status flags
column->Flags |= ImGuiTableColumnFlags_IsEnabled;
@ -1106,6 +1109,14 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
visible_n++;
}
// In case the table is visible (e.g. decorations) but all columns clipped, we keep a column visible.
// Else if give no chance to a clipper-savy user to submit rows and therefore total contents height used by scrollbar.
if (has_at_least_one_column_requesting_output == false)
{
table->Columns[table->LeftMostEnabledColumn].IsRequestOutput = true;
table->Columns[table->LeftMostEnabledColumn].IsSkipItems = false;
}
// [Part 7] Detect/store when we are hovering the unused space after the right-most column (so e.g. context menus can react on it)
// Clear Resizable flag if none of our column are actually resizable (either via an explicit _NoResize flag, either
// because of using _WidthAuto/_WidthStretch). This will hide the resizing option from the context menu.