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Tables: (breaking) renamed ImGuiTableColumnFlags_WidthAutoResize to _WidthAuto., default to WidthFixed policy when host window has auto-resize.

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Fix edge case with TableSetColumnWidth on small windows (amend 972ca816)
This commit is contained in:
ocornut
2020-12-22 22:32:30 +01:00
parent d497f112e7
commit 956435768f
3 changed files with 38 additions and 32 deletions
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35
imgui_tables.cpp
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@ -98,12 +98,15 @@ Index of this file:
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// TABLES CULLING
// TABLES CLIPPING/CULLING
//-----------------------------------------------------------------------------
// About clipping/culling of Rows in Tables:
// - For large numbers of rows, it is recommended you use ImGuiListClipper to only submit visible rows.
// ImGuiListClipper is reliant on the fact that rows are of equal height.
// See 'Demo->Tables->Vertical Scrolling' or 'Demo->Tables->Advanced' for a demo of using the clipper.
// - Note that columns with the ImGuiTableColumnFlags_WidthAuto policy generally don't play well with using the clipper,
// and by default a table with _ScrollX but without _Resizable will have columns default to _WidthAuto.
// So, if you want to use the clipper, make sure to either enable _Resizable, either setup columns explicitly with _WidthFixed.
//-----------------------------------------------------------------------------
// About clipping/culling of Columns in Tables:
// - Case A: column is not hidden by user, and at least partially in sight (most common case).
@ -193,7 +196,7 @@ inline ImGuiTableFlags TableFixFlags(ImGuiTableFlags flags, ImGuiWindow* outer_w
{
// Adjust flags: set default sizing policy
if ((flags & (ImGuiTableFlags_ColumnsWidthStretch | ImGuiTableFlags_ColumnsWidthFixed)) == 0)
flags |= (flags & ImGuiTableFlags_ScrollX) ? ImGuiTableFlags_ColumnsWidthFixed : ImGuiTableFlags_ColumnsWidthStretch;
flags |= ((flags & ImGuiTableFlags_ScrollX) || (outer_window->Flags & ImGuiWindowFlags_AlwaysAutoResize)) ? ImGuiTableFlags_ColumnsWidthFixed : ImGuiTableFlags_ColumnsWidthStretch;
// Adjust flags: disable Resizable when using SameWidths (done above enforcing BordersInnerV)
if (flags & ImGuiTableFlags_SameWidths)
@ -564,14 +567,14 @@ static void TableSetupColumnFlags(ImGuiTable* table, ImGuiTableColumn* column, I
// Sizing Policy
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
{
// FIXME-TABLE: Inconsistent to promote columns to WidthAutoResize
// FIXME-TABLE: Inconsistent to promote columns to WidthAuto
if (table->Flags & ImGuiTableFlags_ColumnsWidthFixed)
flags |= ((table->Flags & ImGuiTableFlags_Resizable) && !(flags & ImGuiTableColumnFlags_NoResize)) ? ImGuiTableColumnFlags_WidthFixed : ImGuiTableColumnFlags_WidthAutoResize;
flags |= ((table->Flags & ImGuiTableFlags_Resizable) && !(flags & ImGuiTableColumnFlags_NoResize)) ? ImGuiTableColumnFlags_WidthFixed : ImGuiTableColumnFlags_WidthAuto;
else
flags |= ImGuiTableColumnFlags_WidthStretch;
}
IM_ASSERT(ImIsPowerOfTwo(flags & ImGuiTableColumnFlags_WidthMask_)); // Check that only 1 of each set is used.
if (flags & ImGuiTableColumnFlags_WidthAutoResize)
if (flags & ImGuiTableColumnFlags_WidthAuto)
flags |= ImGuiTableColumnFlags_NoResize;
// Sorting
@ -609,9 +612,8 @@ static void TableSetupColumnFlags(ImGuiTable* table, ImGuiTableColumn* column, I
// Layout columns for the frame. This is in essence the followup to BeginTable().
// Runs on the first call to TableNextRow(), to give a chance for TableSetupColumn() to be called first.
// FIXME-TABLE: Our width (and therefore our WorkRect) will be minimal in the first frame for WidthAutoResize
// columns, increase feedback side-effect with widgets relying on WorkRect.Max.x. Maybe provide a default distribution
// for WidthAutoResize columns?
// FIXME-TABLE: Our width (and therefore our WorkRect) will be minimal in the first frame for _WidthAuto columns.
// Increase feedback side-effect with widgets relying on WorkRect.Max.x... Maybe provide a default distribution for _WidthAuto columns?
void ImGui::TableUpdateLayout(ImGuiTable* table)
{
ImGuiContext& g = *GImGui;
@ -657,7 +659,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
table->IsSortSpecsDirty = true;
bool start_auto_fit = false;
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAutoResize))
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
start_auto_fit = column->WidthRequest < 0.0f;
else
start_auto_fit = column->StretchWeight < 0.0f;
@ -739,11 +741,11 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
}
column->IsPreserveWidthAuto = false;
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAutoResize))
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
{
// Process auto-fit for non-stretched columns
// Latch initial size for fixed columns and update it constantly for auto-resizing column (unless clipped!)
if ((column->AutoFitQueue != 0x00) || ((column->Flags & ImGuiTableColumnFlags_WidthAutoResize) && column->IsVisibleX))
if ((column->AutoFitQueue != 0x00) || ((column->Flags & ImGuiTableColumnFlags_WidthAuto) && column->IsVisibleX))
column->WidthRequest = column->WidthAuto;
// FIXME-TABLE: Increase minimum size during init frame to avoid biasing auto-fitting widgets
@ -786,7 +788,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if (!(table->EnabledMaskByIndex & ((ImU64)1 << column_n)))
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAutoResize))
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
{
sum_width_fixed_requests += max_width_auto - column->WidthRequest; // Update old sum
column->WidthRequest = max_width_auto;
@ -978,7 +980,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
// [Part 8] 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 _WidthAutoResize/_WidthStretch). This will hide the resizing option from the context menu.
// because of using _WidthAuto/_WidthStretch). This will hide the resizing option from the context menu.
const float unused_x1 = ImMax(table->WorkRect.Min.x, table->Columns[table->RightMostEnabledColumn].ClipRect.Max.x);
if (is_hovering_table && table->HoveredColumnBody == -1)
{
@ -1279,7 +1281,7 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
table->DeclColumnsCount++;
// When passing a width automatically enforce WidthFixed policy
// (whereas TableSetupColumnFlags would default to WidthAutoResize)
// (whereas TableSetupColumnFlags would default to WidthAuto)
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
if ((table->Flags & ImGuiTableFlags_ColumnsWidthFixed) && (init_width_or_weight > 0.0f))
flags |= ImGuiTableColumnFlags_WidthFixed;
@ -1871,7 +1873,7 @@ void ImGui::TableSetColumnWidth(int column_n, float width)
// Apply constraints early
// Compare both requested and actual given width to avoid overwriting requested width when column is stuck (minimum size, bounded)
const float min_width = TableGetMinColumnWidth();
const float max_width = TableGetMaxColumnWidth(table, column_n);
const float max_width = ImMax(min_width, TableGetMaxColumnWidth(table, column_n));
column_0_width = ImClamp(column_0_width, min_width, max_width);
if (column_0->WidthGiven == column_0_width || column_0->WidthRequest == column_0_width)
return;
@ -1931,6 +1933,7 @@ void ImGui::TableSetColumnWidth(int column_n, float width)
// (old_a + old_b == new_a + new_b) --> (new_a == old_a + old_b - new_b)
float column_1_width = ImMax(column_1->WidthRequest - (column_0_width - column_0->WidthRequest), min_width);
column_0_width = column_0->WidthRequest + column_1->WidthRequest - column_1_width;
IM_ASSERT(column_0_width > 0.0f && column_1_width > 0.0f);
column_0->WidthRequest = column_0_width;
column_1->WidthRequest = column_1_width;
if ((column_0->Flags | column_1->Flags) & ImGuiTableColumnFlags_WidthStretch)
@ -3321,7 +3324,7 @@ void ImGui::DebugNodeTable(ImGuiTable* table)
column->SortOrder, (column->SortDirection == ImGuiSortDirection_Ascending) ? " (Asc)" : (column->SortDirection == ImGuiSortDirection_Descending) ? " (Des)" : "", column->UserID, column->Flags,
(column->Flags & ImGuiTableColumnFlags_WidthStretch) ? "WidthStretch " : "",
(column->Flags & ImGuiTableColumnFlags_WidthFixed) ? "WidthFixed " : "",
(column->Flags & ImGuiTableColumnFlags_WidthAutoResize) ? "WidthAutoResize " : "",
(column->Flags & ImGuiTableColumnFlags_WidthAuto) ? "WidthAuto " : "",
(column->Flags & ImGuiTableColumnFlags_NoResize) ? "NoResize " : "");
Bullet();
Selectable(buf);