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Tables: (Breaking) Added ImGuiTableFlags_SizingFixedSame, ImGuiTableFlags_SizingStretchProp. Removed ImGuiTableFlags_SameWidths.

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Simplified some code and clariffied that currently non-resizable = always revert to default (while waiting to untangle Fixed vs Auto and programmatic override not going through TableSetupColumn)
Whereas ImGuiTableFlags_SameWidths has some unusual handling of mixed Fixed/Stretch columns, we know treat them separately.
This commit is contained in:
ocornut
2021-01-08 18:38:55 +01:00
parent 0e3ba37e6d
commit e18abe3619
4 changed files with 185 additions and 90 deletions
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12
imgui.h
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@@ -1081,9 +1081,10 @@ enum ImGuiTableFlags_
ImGuiTableFlags_NoBordersInBodyUntilResize = 1 << 12, // [ALPHA] Disable vertical borders in columns Body until hovered for resize (borders will always appears in Headers). -> May move to style
// Sizing Policy (read above for defaults)
ImGuiTableFlags_SizingFixedFit = 1 << 13, // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching contents width.
ImGuiTableFlags_SizingFixedSame = 2 << 13, // Columns default to _WidthFixed or _WidthAuto (if resizable or not resizable), matching the maximum contents width of all columns. Implicitly enable ImGuiTableFlags_NoKeepColumnsVisible.
ImGuiTableFlags_SizingStretchProp = 3 << 13, // Columns default to _WidthStretch with default weights proportional to each columns contents widths.
ImGuiTableFlags_SizingStretchSame = 4 << 13, // Columns default to _WidthStretch with default weights all equal, unless overriden by TableSetupColumn().
// Sizing Extra Options
ImGuiTableFlags_SameWidths = 1 << 15, // Make all columns the same widths which is useful with Fixed columns policy (but granted by default with Stretch policy + no resize). Implicitly enable ImGuiTableFlags_NoKeepColumnsVisible and disable ImGuiTableFlags_Resizable.
ImGuiTableFlags_NoHostExtendY = 1 << 16, // Disable extending table past the limit set by outer_size.y. Only meaningful when neither ScrollX nor ScrollY are set (data below the limit will be clipped and not visible)
ImGuiTableFlags_NoKeepColumnsVisible = 1 << 17, // Disable keeping column always minimally visible when ScrollX is off and table gets too small. Not recommended if columns are resizable.
ImGuiTableFlags_PreciseWidths = 1 << 18, // Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.
@@ -1098,7 +1099,10 @@ enum ImGuiTableFlags_
ImGuiTableFlags_ScrollY = 1 << 24, // Enable vertical scrolling. Require 'outer_size' parameter of BeginTable() to specify the container size.
// Sorting
ImGuiTableFlags_SortMulti = 1 << 25, // Hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).
ImGuiTableFlags_SortTristate = 1 << 26 // Allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).
ImGuiTableFlags_SortTristate = 1 << 26, // Allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).
// [Internal] Combinations and masks
ImGuiTableFlags_SizingMask_ = ImGuiTableFlags_SizingFixedFit | ImGuiTableFlags_SizingFixedSame | ImGuiTableFlags_SizingStretchProp | ImGuiTableFlags_SizingStretchSame
// Obsolete names (will be removed soon)
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
@@ -1114,9 +1118,9 @@ enum ImGuiTableColumnFlags_
ImGuiTableColumnFlags_None = 0,
ImGuiTableColumnFlags_DefaultHide = 1 << 0, // Default as a hidden/disabled column.
ImGuiTableColumnFlags_DefaultSort = 1 << 1, // Default as a sorting column.
ImGuiTableColumnFlags_WidthStretch = 1 << 2, // Column will stretch. Preferable with horizontal scrolling disabled (default if table sizing policy is _SizingStretchSame).
ImGuiTableColumnFlags_WidthStretch = 1 << 2, // Column will stretch. Preferable with horizontal scrolling disabled (default if table sizing policy is _SizingStretchSame or _SizingStretchProp).
ImGuiTableColumnFlags_WidthFixed = 1 << 3, // Column will not stretch. Preferable with horizontal scrolling enabled (default if table sizing policy is _SizingFixedFit and table is resizable).
ImGuiTableColumnFlags_WidthAuto = 1 << 4, // Column will not stretch and keep resizing based on submitted contents (default if table sizing policy is _SizingFixedFit and table is not resizable). Generally compatible with using right-most fitting widgets (e.g. SetNextItemWidth(-FLT_MIN))
ImGuiTableColumnFlags_WidthAuto = 1 << 4, // Column will not stretch and keep resizing based on submitted contents (default if table sizing policy is _SizingFixedFit and table is not resizable, or policy is _SizingFixedSame). Generally compatible with using right-most fitting widgets (e.g. SetNextItemWidth(-FLT_MIN))
ImGuiTableColumnFlags_NoResize = 1 << 5, // Disable manual resizing.
ImGuiTableColumnFlags_NoReorder = 1 << 6, // Disable manual reordering this column, this will also prevent other columns from crossing over this column.
ImGuiTableColumnFlags_NoHide = 1 << 7, // Disable ability to hide/disable this column.

113
imgui_demo.cpp
View File

@@ -3350,6 +3350,49 @@ static void PopStyleCompact()
ImGui::PopStyleVar(2);
}
// Show a combo box with a choice of sizing policies
static void EditTableSizingFlags(ImGuiTableFlags* p_flags)
{
struct EnumDesc { ImGuiTableFlags Value; const char* Name; const char* Tooltip; };
static const EnumDesc policies[] =
{
{ ImGuiTableFlags_None, "Default", "Use default sizing policy:\n- ImGuiTableFlags_SizingFixedFit if ScrollX is on or if host window has ImGuiWindowFlags_AlwaysAutoResize.\n- ImGuiTableFlags_SizingStretchSame otherwise." },
{ ImGuiTableFlags_SizingFixedFit, "ImGuiTableFlags_SizingFixedFit", "Columns default to _WidthFixed (if resizable) or _WidthAuto (if not resizable), matching contents width." },
{ ImGuiTableFlags_SizingFixedSame, "ImGuiTableFlags_SizingFixedSame", "Columns are all the same width, matching the maximum contents width.\nImplicitly disable ImGuiTableFlags_Resizable and enable ImGuiTableFlags_NoKeepColumnsVisible." },
{ ImGuiTableFlags_SizingStretchProp, "ImGuiTableFlags_SizingStretchProp", "Columns default to _WidthStretch with weights proportional to their widths." },
{ ImGuiTableFlags_SizingStretchSame, "ImGuiTableFlags_SizingStretchSame", "Columns default to _WidthStretch with same weights." }
};
int idx;
for (idx = 0; idx < IM_ARRAYSIZE(policies); idx++)
if (policies[idx].Value == (*p_flags & ImGuiTableFlags_SizingMask_))
break;
const char* preview_text = (idx < IM_ARRAYSIZE(policies)) ? policies[idx].Name + (idx > 0 ? strlen("ImGuiTableFlags") : 0) : "";
if (ImGui::BeginCombo("Sizing Policy", preview_text))
{
for (int n = 0; n < IM_ARRAYSIZE(policies); n++)
if (ImGui::Selectable(policies[n].Name, idx == n))
*p_flags = (*p_flags & ~ImGuiTableFlags_SizingMask_) | policies[n].Value;
ImGui::EndCombo();
}
ImGui::SameLine();
ImGui::TextDisabled("(?)");
if (ImGui::IsItemHovered())
{
ImGui::BeginTooltip();
ImGui::PushTextWrapPos(ImGui::GetFontSize() * 50.0f);
for (int m = 0; m < IM_ARRAYSIZE(policies); m++)
{
ImGui::Separator();
ImGui::Text("%s:", policies[m].Name);
ImGui::Separator();
ImGui::SetCursorPosX(ImGui::GetCursorPosX() + ImGui::GetStyle().IndentSpacing * 0.5f);
ImGui::TextUnformatted(policies[m].Tooltip);
}
ImGui::PopTextWrapPos();
ImGui::EndTooltip();
}
}
static void EditTableColumnsFlags(ImGuiTableColumnFlags* p_flags)
{
ImGui::CheckboxFlags("_DefaultHide", p_flags, ImGuiTableColumnFlags_DefaultHide);
@@ -3835,6 +3878,55 @@ static void ShowDemoWindowTables()
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Sizing policies"))
{
static bool fixed_fill = true;
static ImGuiTableFlags flags1 = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::Checkbox("fill", &fixed_fill);
ImGui::SameLine(); HelpMarker(
"Value passed to outer_size only affects tables with _SizingFixedFit or _SizingFixedSame sizing policies.\n\n"
" - outer_size.x == 0: table fit to columns total contents.\n"
" - outer_size.x == -FLT_MIN: table fill until right-most edge.");
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
PopStyleCompact();
ImVec2 outer_size = ImVec2(fixed_fill ? -FLT_MIN : 0.0f, 0.0f);
static ImGuiTableFlags sizing_policy_flags[4] = { ImGuiTableFlags_SizingFixedFit, ImGuiTableFlags_SizingFixedSame, ImGuiTableFlags_SizingStretchProp, ImGuiTableFlags_SizingStretchSame };
for (int table_n = 0; table_n < 4; table_n++)
{
ImGui::PushID(table_n);
ImGui::SetNextItemWidth(TEXT_BASE_WIDTH * 30);
EditTableSizingFlags(&sizing_policy_flags[table_n]);
// To make it easier to understand the different sizing policy,
// For each policy: we display one table where the columns have equal contents width, and one where the columns have different contents width.
if (ImGui::BeginTable("##table1", 3, sizing_policy_flags[table_n] | flags1, outer_size))
{
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
ImGui::TableNextColumn(); ImGui::Text("Oh dear");
}
ImGui::EndTable();
}
if (ImGui::BeginTable("##table2", 3, sizing_policy_flags[table_n] | flags1, outer_size))
{
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
ImGui::TableNextColumn(); ImGui::Text("AAAA");
ImGui::TableNextColumn(); ImGui::Text("BBBBBBBB");
ImGui::TableNextColumn(); ImGui::Text("CCCCCCCCCCCC");
}
ImGui::EndTable();
}
ImGui::PopID();
}
ImGui::Spacing();
ImGui::TextUnformatted("Advanced");
ImGui::SameLine();
HelpMarker("This section allows you to interact and see the effect of various sizing policies depending on whether Scroll is enabled and the contents of your columns.");
enum ContentsType { CT_ShowWidth, CT_ShortText, CT_LongText, CT_Button, CT_FillButton, CT_InputText };
@@ -3843,7 +3935,9 @@ static void ShowDemoWindowTables()
static int column_count = 3;
PushStyleCompact();
ImGui::PushID("Advanced");
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
EditTableSizingFlags(&flags);
ImGui::Combo("Contents", &contents_type, "Show width\0Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
if (contents_type == CT_FillButton)
{
@@ -3851,12 +3945,6 @@ static void ShowDemoWindowTables()
HelpMarker("Be mindful that using right-alignment (e.g. size.x = -FLT_MIN) creates a feedback loop where contents width can feed into auto-column width can feed into contents width.");
}
ImGui::DragInt("Columns", &column_count, 0.1f, 1, 64, "%d", ImGuiSliderFlags_AlwaysClamp);
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingStretchSame", &flags, ImGuiTableFlags_SizingStretchSame))
flags &= ~ImGuiTableFlags_SizingFixedFit; // Can't specify both sizing polices so we clear the other
ImGui::SameLine(); HelpMarker("Default if _ScrollX if disabled. Makes columns use _WidthStretch policy by default.");
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingFixedFit", &flags, ImGuiTableFlags_SizingFixedFit))
flags &= ~ImGuiTableFlags_SizingStretchSame; // Can't specify both sizing polices so we clear the other
ImGui::SameLine(); HelpMarker("Default if _ScrollX if enabled. Makes columns use _WidthFixed by default, or _WidthFixedResize if _Resizable is not set.");
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
@@ -3864,10 +3952,11 @@ static void ShowDemoWindowTables()
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
ImGui::PopItemWidth();
ImGui::PopID();
PopStyleCompact();
ImVec2 outer_size(-FLT_MIN, TEXT_BASE_HEIGHT * 7);
if (ImGui::BeginTable("##table1", column_count, flags, outer_size))
outer_size = ImVec2(-FLT_MIN, TEXT_BASE_HEIGHT * 7);
if (ImGui::BeginTable("##table2", column_count, flags, outer_size))
{
for (int cell = 0; cell < 10 * column_count; cell++)
{
@@ -4757,19 +4846,13 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNodeEx("Sizing:", ImGuiTreeNodeFlags_DefaultOpen))
{
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingStretchSame", &flags, ImGuiTableFlags_SizingStretchSame))
flags &= ~ImGuiTableFlags_SizingFixedFit; // Can't specify both sizing polices so we clear the other
ImGui::SameLine(); HelpMarker("[Default if ScrollX is off]\nFit all columns within available width (or specified inner_width). Fixed and Stretch columns allowed.");
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingFixedFit", &flags, ImGuiTableFlags_SizingFixedFit))
flags &= ~ImGuiTableFlags_SizingStretchSame; // Can't specify both sizing polices so we clear the other
ImGui::SameLine(); HelpMarker("[Default if ScrollX is on]\nEnlarge as needed: enable scrollbar if ScrollX is enabled, otherwise extend parent window's contents rectangle. Only Fixed columns allowed. Stretched columns will calculate their width assuming no scrolling.");
EditTableSizingFlags(&flags);
ImGui::SameLine(); HelpMarker("In the Advanced demo we override the policy of each column so those table-wide settings have less effect that typical.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::SameLine(); HelpMarker("Only available if ScrollX is disabled.");
ImGui::CheckboxFlags("ImGuiTableFlags_PreciseWidths", &flags, ImGuiTableFlags_PreciseWidths);
ImGui::SameLine(); HelpMarker("Disable distributing remainder width to stretched columns (width allocation on a 100-wide table with 3 columns: Without this flag: 33,33,34. With this flag: 33,33,33). With larger number of columns, resizing will appear to be less smooth.");
ImGui::CheckboxFlags("ImGuiTableFlags_SameWidths", &flags, ImGuiTableFlags_SameWidths);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
ImGui::SameLine(); HelpMarker("Disable clipping rectangle for every individual columns (reduce draw command count, items will be able to overflow into other columns). Generally incompatible with ScrollFreeze options.");
ImGui::TreePop();

2
imgui_internal.h
View File

@@ -2051,7 +2051,7 @@ struct ImGuiTable
ImGuiTableColumnIdx DeclColumnsCount; // Count calls to TableSetupColumn()
ImGuiTableColumnIdx HoveredColumnBody; // Index of column whose visible region is being hovered. Important: == ColumnsCount when hovering empty region after the right-most column!
ImGuiTableColumnIdx HoveredColumnBorder; // Index of column whose right-border is being hovered (for resizing).
ImGuiTableColumnIdx AutoFitSingleStretchColumn; // Index of single stretch column requesting auto-fit.
ImGuiTableColumnIdx AutoFitSingleColumn; // Index of single column requesting auto-fit.
ImGuiTableColumnIdx ResizedColumn; // Index of column being resized. Reset when InstanceCurrent==0.
ImGuiTableColumnIdx LastResizedColumn; // Index of column being resized from previous frame.
ImGuiTableColumnIdx HeldHeaderColumn; // Index of column header being held.

148
imgui_tables.cpp
View File

@@ -116,15 +116,19 @@ Index of this file:
// Widths are specified _without_ CellPadding. If you specify a width of 100.0f, the column will be cover (100.0f + Padding * 2.0f)
// and you can fit a 100.0f wide item in it without clipping and with full padding.
//-----------------------------------------------------------------------------
// About default width policy (if you don't specify a ImGuiTableColumnFlags_WidthXXXX flag)
// - When Table policy ImGuiTableFlags_SizingFixedFit && (Table is Resizable || init_width > 0) --> default Column policy is ImGuiTableColumnFlags_WidthFixed
// - When Table policy ImGuiTableFlags_SizingFixedFit && (Table is !Resizable && init_width <= 0) --> default Column policy is ImGuiTableColumnFlags_WidthAuto
// - When Table policy ImGuiTableFlags_SizingStretchSame --> default Column policy is ImGuiTableColumnFlags_WidthStretch
// About default sizing policy (if you don't specify a ImGuiTableColumnFlags_WidthXXXX flag)
// - with Table policy ImGuiTableFlags_SizingFixedFit && (Resizable == 1 || init_width > 0) --> default Column policy is ImGuiTableColumnFlags_WidthFixed, default Width is equal to contents width
// - with Table policy ImGuiTableFlags_SizingFixedFit && (Resizable == 0 && init_width <= 0) --> default Column policy is ImGuiTableColumnFlags_WidthAuto, Width always equal to contents width
// - with Table policy ImGuiTableFlags_SizingFixedSame --> default Column policy is ImGuiTableColumnFlags_WidthAuto, default Width is max of all contents width
// - with Table policy ImGuiTableFlags_SizingStretchSame --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is 1.0f
// - with Table policy ImGuiTableFlags_SizingStretchWeight --> default Column policy is ImGuiTableColumnFlags_WidthStretch, default Weight is proportional to contents
//-----------------------------------------------------------------------------
// About mixing Fixed/Auto and Stretch columns together:
// - the typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
// - using mixed policies with ScrollX does not make much sense, as using Stretch columns with ScrollX does not make much sense in the first place!
// that is, unless 'inner_width' is passed to BeginTable() to explicitely provide a total width to layout columns in.
// - when using ImGuiTableFlags_SizingFixedSame with mixed columns, only the Fixed/Auto columns will match their widths to the maximum contents width.
// - when using ImGuiTableFlags_SizingStretchSame with mixed columns, only the Stretch columns will match their weight/widths.
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
@@ -225,12 +229,12 @@ static const float TABLE_RESIZE_SEPARATOR_FEEDBACK_TIMER = 0.06f; // Delay/tim
inline ImGuiTableFlags TableFixFlags(ImGuiTableFlags flags, ImGuiWindow* outer_window)
{
// Adjust flags: set default sizing policy
if ((flags & (ImGuiTableFlags_SizingStretchSame | ImGuiTableFlags_SizingFixedFit)) == 0)
if ((flags & ImGuiTableFlags_SizingMask_) == 0)
flags |= ((flags & ImGuiTableFlags_ScrollX) || (outer_window->Flags & ImGuiWindowFlags_AlwaysAutoResize)) ? ImGuiTableFlags_SizingFixedFit : ImGuiTableFlags_SizingStretchSame;
// Adjust flags: disable Resizable when using SameWidths (done above enforcing BordersInnerV)
if (flags & ImGuiTableFlags_SameWidths)
flags = (flags & ~ImGuiTableFlags_Resizable) | ImGuiTableFlags_NoKeepColumnsVisible;
// Adjust flags: enable NoKeepColumnsVisible when using ImGuiTableFlags_SizingFixedSame
if ((flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
flags |= ImGuiTableFlags_NoKeepColumnsVisible;
// Adjust flags: enforce borders when resizable
if (flags & ImGuiTableFlags_Resizable)
@@ -449,7 +453,7 @@ bool ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
table->InstanceInteracted = -1;
table->ContextPopupColumn = -1;
table->ReorderColumn = table->ResizedColumn = table->LastResizedColumn = -1;
table->AutoFitSingleStretchColumn = -1;
table->AutoFitSingleColumn = -1;
table->HoveredColumnBody = table->HoveredColumnBorder = -1;
for (int n = 0; n < columns_count; n++)
{
@@ -535,12 +539,12 @@ void ImGui::TableBeginApplyRequests(ImGuiTable* table)
table->ResizedColumnNextWidth = FLT_MAX;
table->ResizedColumn = -1;
// Process auto-fit for single stretch column, which is a special case
// Process auto-fit for single column, which is a special case for stretch columns and fixed columns with FixedSame policy.
// FIXME-TABLE: Would be nice to redistribute available stretch space accordingly to other weights, instead of giving it all to siblings.
if (table->AutoFitSingleStretchColumn != -1)
if (table->AutoFitSingleColumn != -1)
{
TableSetColumnWidth(table->AutoFitSingleStretchColumn, table->Columns[table->AutoFitSingleStretchColumn].WidthAuto);
table->AutoFitSingleStretchColumn = -1;
TableSetColumnWidth(table->AutoFitSingleColumn, table->Columns[table->AutoFitSingleColumn].WidthAuto);
table->AutoFitSingleColumn = -1;
}
}
@@ -598,7 +602,8 @@ static void TableSetupColumnFlags(ImGuiTable* table, ImGuiTableColumn* column, I
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
{
// FIXME-TABLE: clarify promotion to WidthAuto?
if (table->Flags & ImGuiTableFlags_SizingFixedFit)
const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
if (table_sizing_policy == ImGuiTableFlags_SizingFixedFit || table_sizing_policy == ImGuiTableFlags_SizingFixedSame)
flags |= ((table->Flags & ImGuiTableFlags_Resizable) && !(flags & ImGuiTableColumnFlags_NoResize)) ? ImGuiTableColumnFlags_WidthFixed : ImGuiTableColumnFlags_WidthAuto;
else
flags |= ImGuiTableColumnFlags_WidthStretch;
@@ -654,17 +659,22 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
ImGuiContext& g = *GImGui;
IM_ASSERT(table->IsLayoutLocked == false);
const ImGuiTableFlags table_sizing_policy = (table->Flags & ImGuiTableFlags_SizingMask_);
table->IsDefaultDisplayOrder = true;
table->ColumnsEnabledCount = 0;
table->EnabledMaskByIndex = 0x00;
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. Calculate auto/ideal width for columns.
// [Part 1] Apply/lock Enabled and Order states. Calculate auto/ideal width for columns. Count fixed/stretch columns.
// Process columns in their visible orders as we are building the Prev/Next indices.
int count_fixed = 0; // Number of columns that have fixed sizing policies
int count_stretch = 0; // Number of columns that have stretch sizing policies
int last_visible_column_idx = -1;
bool has_auto_fit_request = false;
bool has_resizable = false;
float stretch_sum_width_auto = 0.0f;
float fixed_max_width_auto = 0.0f;
for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
{
const int column_n = table->DisplayOrderToIndex[order_n];
@@ -723,11 +733,25 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if (!column->IsPreserveWidthAuto)
column->WidthAuto = TableGetColumnWidthAuto(table, column);
// Non-resizable columns keep their requested width (apply user value regardless of IsPreserveWidthAuto)
const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
if (column_is_resizable)
has_resizable = true;
if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f && !column_is_resizable)
column->WidthAuto = column->InitStretchWeightOrWidth;
if (column->AutoFitQueue != 0x00)
has_auto_fit_request = true;
if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
{
stretch_sum_width_auto += column->WidthAuto;
count_stretch++;
}
else
{
fixed_max_width_auto = ImMax(fixed_max_width_auto, column->WidthAuto);
count_fixed++;
}
}
if ((table->Flags & ImGuiTableFlags_Sortable) && table->SortSpecsCount == 0 && !(table->Flags & ImGuiTableFlags_SortTristate))
table->IsSortSpecsDirty = true;
@@ -742,10 +766,8 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
if (has_auto_fit_request)
table->IsSettingsDirty = true;
// [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!)
// [Part 3] Fix column flags and record a few extra information.
float sum_width_requests = 0.0f; // Sum of all width for fixed and auto-resize columns, excluding width contributed by Stretch columns but including spacing/padding.
float max_width_auto = 0.0f; // Largest auto-width (used for SameWidths feature)
float stretch_sum_weights = 0.0f; // Sum of all weights for stretch columns.
table->LeftMostStretchedColumn = table->RightMostStretchedColumn = -1;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
@@ -754,17 +776,18 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
const bool column_is_resizable = (column->Flags & ImGuiTableColumnFlags_NoResize) == 0;
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
{
// Non-resizable columns keep their requested width
if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f)
if (!(table->Flags & ImGuiTableFlags_Resizable) || (column->Flags & ImGuiTableColumnFlags_NoResize))
column->WidthRequest = column->WidthAuto = ImMax(column->WidthAuto, column->InitStretchWeightOrWidth); // Use user value regardless of IsPreserveWidthAuto
// Apply same widths policy
float width_auto = column->WidthAuto;
if (table_sizing_policy == ImGuiTableFlags_SizingFixedSame && (column->AutoFitQueue != 0x00 || !column_is_resizable))
width_auto = fixed_max_width_auto;
// Process auto-fit for non-stretched columns
// Apply automatic width
// Latch initial size for fixed columns and update it constantly for auto-resizing column (unless clipped!)
if ((column->AutoFitQueue != 0x00) || ((column->Flags & ImGuiTableColumnFlags_WidthAuto) && column->IsVisibleX))
column->WidthRequest = column->WidthAuto;
if ((column->AutoFitQueue != 0x00) || ((column->Flags & ImGuiTableColumnFlags_WidthAuto) && column->IsVisibleX) || ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !column_is_resizable))
column->WidthRequest = width_auto;
// FIXME-TABLE: Increase minimum size during init frame to avoid biasing auto-fitting widgets
// (e.g. TextWrapped) too much. Otherwise what tends to happen is that TextWrapped would output a very
@@ -774,13 +797,20 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
// FIXME: This break IsPreserveWidthAuto from not flickering if the stored WidthAuto was smaller.
if (column->AutoFitQueue > 0x01 && table->IsInitializing && !column->IsPreserveWidthAuto)
column->WidthRequest = ImMax(column->WidthRequest, table->MinColumnWidth * 4.0f); // FIXME-TABLE: Another constant/scale?
count_fixed += 1;
sum_width_requests += column->WidthRequest;
}
else
{
if (column->AutoFitQueue != 0x00 || column->StretchWeight < 0.0f)
column->StretchWeight = (column->InitStretchWeightOrWidth > 0.0f) ? column->InitStretchWeightOrWidth : 1.0f;
// Initialize stretch weight
if (column->AutoFitQueue != 0x00 || column->StretchWeight < 0.0f || !column_is_resizable)
{
if (column->InitStretchWeightOrWidth > 0.0f)
column->StretchWeight = column->InitStretchWeightOrWidth;
else if (table_sizing_policy == ImGuiTableFlags_SizingStretchProp)
column->StretchWeight = (column->WidthAuto / stretch_sum_width_auto) * count_stretch;
else
column->StretchWeight = 1.0f;
}
stretch_sum_weights += column->StretchWeight;
if (table->LeftMostStretchedColumn == -1 || table->Columns[table->LeftMostStretchedColumn].DisplayOrder > column->DisplayOrder)
@@ -789,42 +819,15 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
table->RightMostStretchedColumn = (ImGuiTableColumnIdx)column_n;
}
column->IsPreserveWidthAuto = false;
max_width_auto = ImMax(max_width_auto, column->WidthAuto);
sum_width_requests += table->CellPaddingX * 2.0f;
}
table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
// [Part 4] Apply "all same widths" feature.
// - When all columns are fixed or columns are of mixed type: use the maximum auto width.
// - When all columns are stretch: use same weight.
const bool mixed_same_widths = (table->Flags & ImGuiTableFlags_SameWidths) && count_fixed > 0;
if (table->Flags & ImGuiTableFlags_SameWidths)
{
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
{
if (!(table->EnabledMaskByIndex & ((ImU64)1 << column_n)))
continue;
ImGuiTableColumn* column = &table->Columns[column_n];
if (column->Flags & (ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_WidthAuto))
{
sum_width_requests += max_width_auto - column->WidthRequest; // Update old sum
column->WidthRequest = max_width_auto;
}
else
{
stretch_sum_weights += 1.0f - column->StretchWeight; // Update old sum
column->StretchWeight = 1.0f;
if (mixed_same_widths)
column->WidthRequest = max_width_auto;
}
}
}
// [Part 5] Apply final widths based on requested widths
const ImRect work_rect = table->WorkRect;
const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
const float width_avail = ((table->Flags & ImGuiTableFlags_ScrollX) && table->InnerWidth == 0.0f) ? table->InnerClipRect.GetWidth() : work_rect.GetWidth();
const float width_avail_for_stretched_columns = mixed_same_widths ? 0.0f : width_avail - width_spacings - sum_width_requests;
const float width_avail_for_stretched_columns = width_avail - width_spacings - sum_width_requests;
float width_remaining_for_stretched_columns = width_avail_for_stretched_columns;
table->ColumnsGivenWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount;
for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
@@ -834,7 +837,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
ImGuiTableColumn* column = &table->Columns[column_n];
// Allocate width for stretched/weighted columns (StretchWeight gets converted into WidthRequest)
if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) && !mixed_same_widths)
if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
{
float weight_ratio = column->StretchWeight / stretch_sum_weights;
column->WidthRequest = IM_FLOOR(ImMax(width_avail_for_stretched_columns * weight_ratio, table->MinColumnWidth) + 0.01f);
@@ -1308,8 +1311,8 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
// When passing a width automatically enforce WidthFixed policy
// (whereas TableSetupColumnFlags would default to WidthAuto if table is not Resizable)
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0)
if ((table->Flags & ImGuiTableFlags_SizingFixedFit) && (init_width_or_weight > 0.0f))
if ((flags & ImGuiTableColumnFlags_WidthMask_) == 0 && init_width_or_weight > 0.0f)
if ((table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedFit || (table->Flags & ImGuiTableFlags_SizingMask_) == ImGuiTableFlags_SizingFixedSame)
flags |= ImGuiTableColumnFlags_WidthFixed;
TableSetupColumnFlags(table, column, flags);
@@ -1891,7 +1894,7 @@ float ImGui::TableGetColumnWidthAuto(ImGuiTable* table, ImGuiTableColumn* column
// Non-resizable fixed columns preserve their requested width
if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && column->InitStretchWeightOrWidth > 0.0f)
if (!(table->Flags & ImGuiTableFlags_Resizable) || (column->Flags & ImGuiTableColumnFlags_NoResize))
width_auto = ImMax(width_auto, column->InitStretchWeightOrWidth);
width_auto = column->InitStretchWeightOrWidth;
return ImMax(width_auto, table->MinColumnWidth);
}
@@ -1987,10 +1990,7 @@ void ImGui::TableSetColumnWidthAutoSingle(ImGuiTable* table, int column_n)
if (!column->IsEnabled)
return;
column->CannotSkipItemsQueue = (1 << 0);
if (column->Flags & ImGuiTableColumnFlags_WidthStretch)
table->AutoFitSingleStretchColumn = (ImGuiTableColumnIdx)column_n;
else
column->AutoFitQueue = (1 << 1);
table->AutoFitSingleColumn = (ImGuiTableColumnIdx)column_n;
}
void ImGui::TableSetColumnWidthAutoAll(ImGuiTable* table)
@@ -2353,7 +2353,7 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
if (column->MaxX > table->InnerClipRect.Max.x && !is_resized)
continue;
if (column->NextEnabledColumn == -1 && !is_resizable)
if ((table->Flags & ImGuiTableFlags_SameWidths) == 0 || table->IsOuterRectAutoFitX)
if ((table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame || table->IsOuterRectAutoFitX)
continue;
if (column->MaxX <= column->ClipRect.Min.x) // FIXME-TABLE FIXME-STYLE: Assume BorderSize==1, this is problematic if we want to increase the border size..
continue;
@@ -2868,12 +2868,10 @@ void ImGui::TableDrawContextMenu(ImGuiTable* table)
}
const char* size_all_desc;
if (table->ColumnsEnabledFixedCount == table->ColumnsEnabledCount)
if (table->ColumnsEnabledFixedCount == table->ColumnsEnabledCount && (table->Flags & ImGuiTableFlags_SizingMask_) != ImGuiTableFlags_SizingFixedSame)
size_all_desc = "Size all columns to fit###SizeAll"; // All fixed
else if (table->ColumnsEnabledFixedCount == 0)
size_all_desc = "Size all columns to default###SizeAll"; // All stretch
else
size_all_desc = "Size all columns to fit/default###SizeAll";// Mixed
size_all_desc = "Size all columns to default###SizeAll"; // All stretch or mixed
if (MenuItem(size_all_desc, NULL))
TableSetColumnWidthAutoAll(table);
want_separator = true;
@@ -3322,6 +3320,16 @@ void ImGui::TableGcCompactSettings()
#ifndef IMGUI_DISABLE_METRICS_WINDOW
static const char* DebugNodeTableGetSizingPolicyDesc(ImGuiTableFlags sizing_policy)
{
sizing_policy &= ImGuiTableFlags_SizingMask_;
if (sizing_policy == ImGuiTableFlags_SizingFixedFit) { return "FixedFit"; }
if (sizing_policy == ImGuiTableFlags_SizingFixedSame) { return "FixedSame"; }
if (sizing_policy == ImGuiTableFlags_SizingStretchProp) { return "StretchProp"; }
if (sizing_policy == ImGuiTableFlags_SizingStretchSame) { return "StretchSame"; }
return "N/A";
}
void ImGui::DebugNodeTable(ImGuiTable* table)
{
char buf[512];
@@ -3339,7 +3347,7 @@ void ImGui::DebugNodeTable(ImGuiTable* table)
if (!open)
return;
bool clear_settings = SmallButton("Clear settings");
BulletText("OuterRect: Pos: (%.1f,%.1f) Size: (%.1f,%.1f)", table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.GetWidth(), table->OuterRect.GetHeight());
BulletText("OuterRect: Pos: (%.1f,%.1f) Size: (%.1f,%.1f) Sizing: '%s'", table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.GetWidth(), table->OuterRect.GetHeight(), DebugNodeTableGetSizingPolicyDesc(table->Flags));
BulletText("ColumnsGivenWidth: %.1f, ColumnsAutoFitWidth: %.1f, InnerWidth: %.1f%s", table->ColumnsGivenWidth, table->ColumnsAutoFitWidth, table->InnerWidth, table->InnerWidth == 0.0f ? " (auto)" : "");
BulletText("CellPaddingX: %.1f, CellSpacingX: %.1f/%.1f, OuterPaddingX: %.1f", table->CellPaddingX, table->CellSpacingX1, table->CellSpacingX2, table->OuterPaddingX);
BulletText("HoveredColumnBody: %d, HoveredColumnBorder: %d", table->HoveredColumnBody, table->HoveredColumnBorder);