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Tables: internal tidying up, calculate WidthAuto in first loop of layout + TableSetupColumn() with unspecified stretch weight leaves it at -1.0f (unset) rather than overrding default. Amend 3b3503e.

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Both changes are intended to have no side-effects. Committed separately from upcoming commit for easier future bissecting.
Small demo fix.
This commit is contained in:
ocornut
2020-12-25 16:10:12 +01:00
parent 68faa16e1d
commit eb88fee052
3 changed files with 31 additions and 31 deletions
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49
imgui_tables.cpp
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@@ -644,7 +644,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
table->EnabledMaskByDisplayOrder = 0x00;
table->MinColumnWidth = ImMax(1.0f, g.Style.FramePadding.x * 1.0f); // g.Style.ColumnsMinSpacing; // FIXME-TABLE
// [Part 1] Apply/lock Enabled and Order states.
// [Part 1] Apply/lock Enabled and Order states. Calculate auto/ideal width for columns.
// Process columns in their visible orders as we are building the Prev/Next indices.
int last_visible_column_idx = -1;
bool want_auto_fit = false;
@@ -687,29 +687,33 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if (start_auto_fit)
column->AutoFitQueue = column->CannotSkipItemsQueue = (1 << 3) - 1; // Fit for three frames
if (column->AutoFitQueue != 0x00)
want_auto_fit = true;
ImU64 index_mask = (ImU64)1 << column_n;
ImU64 display_order_mask = (ImU64)1 << column->DisplayOrder;
if (column->IsEnabled)
{
// Mark as enabled and link to previous/next enabled column
column->PrevEnabledColumn = (ImGuiTableColumnIdx)last_visible_column_idx;
column->NextEnabledColumn = -1;
if (last_visible_column_idx != -1)
table->Columns[last_visible_column_idx].NextEnabledColumn = (ImGuiTableColumnIdx)column_n;
column->IndexWithinEnabledSet = table->ColumnsEnabledCount;
table->ColumnsEnabledCount++;
table->EnabledMaskByIndex |= index_mask;
table->EnabledMaskByDisplayOrder |= display_order_mask;
last_visible_column_idx = column_n;
}
else
if (!column->IsEnabled)
{
column->IndexWithinEnabledSet = -1;
continue;
}
// Mark as enabled and link to previous/next enabled column
column->PrevEnabledColumn = (ImGuiTableColumnIdx)last_visible_column_idx;
column->NextEnabledColumn = -1;
if (last_visible_column_idx != -1)
table->Columns[last_visible_column_idx].NextEnabledColumn = (ImGuiTableColumnIdx)column_n;
column->IndexWithinEnabledSet = table->ColumnsEnabledCount;
table->ColumnsEnabledCount++;
table->EnabledMaskByIndex |= index_mask;
table->EnabledMaskByDisplayOrder |= display_order_mask;
last_visible_column_idx = column_n;
IM_ASSERT(column->IndexWithinEnabledSet <= column->DisplayOrder);
// Calculate ideal/auto column width (that's the width required for all contents to be visible without clipping)
// Combine width from regular rows + width from headers unless requested not to.
if (!column->IsPreserveWidthAuto)
column->WidthAuto = TableGetColumnWidthAuto(table, column);
if (column->AutoFitQueue != 0x00)
want_auto_fit = true;
}
if ((table->Flags & ImGuiTableFlags_Sortable) && table->SortSpecsCount == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
table->IsSortSpecsDirty = true;
@@ -724,7 +728,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if (want_auto_fit)
table->IsSettingsDirty = true;
// [Part 3] Fix column flags. Calculate ideal width for columns. Count how many fixed/stretch columns we have and sum of weights.
// [Part 3] Fix column flags. Count how many fixed/stretch columns we have and sum of weights.
int count_fixed = 0; // Number of columns that have fixed sizing policy (not stretched sizing policy) (this is NOT the opposite of count_resizable!)
int count_resizable = 0; // Number of columns the user can resize (this is NOT the opposite of count_fixed!)
float sum_weights_stretched = 0.0f; // Sum of all weights for weighted columns.
@@ -741,11 +745,6 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if ((column->Flags & ImGuiTableColumnFlags_NoResize) == 0)
count_resizable++;
// Calculate ideal/auto column width (that's the width required for all contents to be visible without clipping)
// Combine width from regular rows + width from headers unless requested not to.
if (!column->IsPreserveWidthAuto)
column->WidthAuto = TableGetColumnWidthAuto(table, column);
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
{
// Non-resizable columns keep their requested width
@@ -1313,7 +1312,7 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
if ((flags & ImGuiTableColumnFlags_WidthFixed) && init_width_or_weight > 0.0f)
column->WidthRequest = init_width_or_weight;
if (flags & ImGuiTableColumnFlags_WidthStretch)
column->StretchWeight = (init_width_or_weight > 0.0f) ? init_width_or_weight : 1.0f;
column->StretchWeight = (init_width_or_weight > 0.0f) ? init_width_or_weight : -1.0f;
// Disable auto-fit if an explicit width/weight has been specified
if (init_width_or_weight > 0.0f)