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Tables: Moved demo chunks. Made right-most non-resizable same-width column hidden to alleviate the issue where they are off by 1 pixel.

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This commit is contained in:
ocornut 2021-01-06 17:39:41 +01:00
parent 94a432275b
commit 8b5f3798e0
3 changed files with 184 additions and 170 deletions
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1
imgui.h
View File

@ -1052,6 +1052,7 @@ enum ImGuiTabItemFlags_
// - Table defaults to ImGuiTableFlags_SizingPolicyFixed -> all Columns defaults to ImGuiTableColumnFlags_WidthFixed or ImGuiTableColumnFlags_WidthAuto.
// - Columns sizing policy allowed: Fixed/Auto mostly.
// - Fixed Columns can be enlarged as needed. Table will show an horizontal scrollbar if needed.
// - When using auto-resizing (non-resizable) fixed columns, querying the content width to use item right-alignment e.g. SetNextItemWidth(-FLT_MIN) doesn't make sense, would create a feedback loop.
// - Using Stretch columns OFTEN DOES NOT MAKE SENSE if ScrollX is on, UNLESS you have specified a value for 'inner_width' in BeginTable().
// If you specify a value for 'inner_width' then effectively the scrolling space is known and Stretch or mixed Fixed/Stretch columns become meaningful again.
// - Read on documentation at the top of imgui_tables.cpp for details.

342
imgui_demo.cpp
View File

@ -3341,8 +3341,8 @@ const ImGuiTableSortSpecs* MyItem::s_current_sort_specs = NULL;
static void PushStyleCompact()
{
ImGuiStyle& style = ImGui::GetStyle();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, (float)(int)(style.FramePadding.y * 0.70f)));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, (float)(int)(style.ItemSpacing.y * 0.70f)));
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, (float)(int)(style.FramePadding.y * 0.60f)));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, (float)(int)(style.ItemSpacing.y * 0.60f)));
}
static void PopStyleCompact()
@ -3559,11 +3559,11 @@ static void ShowDemoWindowTables()
{
// By default, if we don't enable ScrollX the sizing policy for each columns is "Stretch"
// Each columns maintain a sizing weight, and they will occupy all available width.
static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
static ImGuiTableFlags flags = ImGuiTableFlags_SizingPolicyStretch | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", &flags, ImGuiTableFlags_BordersV);
ImGui::SameLine(); HelpMarker("Using the _Resizable flag automatically enables the _BordersV flag as well.");
ImGui::SameLine(); HelpMarker("Using the _Resizable flag automatically enables the _BordersInnerV flag as well.");
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
@ -3594,13 +3594,14 @@ static void ShowDemoWindowTables()
"Using _Resizable + _SizingPolicyFixed flags.\n"
"Fixed-width columns generally makes more sense if you want to use horizontal scrolling.\n\n"
"Double-click a column border to auto-fit the column to its contents.");
static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_SizingPolicyFixed | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
static bool use_all_width = true;
if (ImGui::RadioButton("fit", use_all_width == false)) { use_all_width = false; }
ImGui::SameLine();
if (ImGui::RadioButton("right-most edge", use_all_width == true)) { use_all_width = true; }
static ImGuiTableFlags flags = ImGuiTableFlags_SizingPolicyFixed | ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
static bool fixed_fill = false;
ImGui::Checkbox("fill", &fixed_fill);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags, ImVec2(use_all_width ? -FLT_MIN : 0.0f, 0.0f)))
ImVec2 outer_size(fixed_fill ? -FLT_MIN : 0.0f, 0.0f);
if (ImGui::BeginTable("##table1", 3, flags, outer_size))
{
for (int row = 0; row < 5; row++)
{
@ -3827,32 +3828,64 @@ static void ShowDemoWindowTables()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Explicit widths"))
if (ImGui::TreeNode("Sizing policies"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_None;
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_ShortText, CT_LongText, CT_Button, CT_FillButton, CT_InputText };
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg;
static int contents_type = CT_LongText;
static int column_count = 3;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
ImGui::Combo("Contents", &contents_type, "Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
if (contents_type == CT_FillButton)
{
ImGui::SameLine();
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);
ImGui::PopItemWidth();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyStretch", &flags, ImGuiTableFlags_SizingPolicyStretch))
flags &= ~ImGuiTableFlags_SizingPolicyFixed; // 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_SizingPolicyFixed", &flags, ImGuiTableFlags_SizingPolicyFixed))
flags &= ~ImGuiTableFlags_SizingPolicyStretch; // 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_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_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 4, flags))
ImVec2 outer_size(-FLT_MIN, TEXT_BASE_HEIGHT * 7);
if (ImGui::BeginTable("##table1", column_count, flags, outer_size))
{
// We could also set ImGuiTableFlags_SizingPolicyFixed on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
for (int row = 0; row < 5; row++)
for (int cell = 0; cell < 10 * column_count; cell++)
{
ImGui::TableNextRow();
for (int column = 0; column < 4; column++)
ImGui::TableNextColumn();
int column = ImGui::TableGetColumnIndex();
int row = ImGui::TableGetRowIndex();
ImGui::PushID(cell);
char label[32];
static char text_buf[32] = "";
sprintf(label, "Hello %d,%d", column, row);
switch (contents_type)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
ImGui::Text("(%.2f)", ImGui::GetContentRegionAvail().x);
ImGui::Text("Hello %d,%d", column, row);
case CT_ShortText: ImGui::TextUnformatted(label); break;
case CT_LongText: ImGui::Text("Some longer text %d,%d\nOver two lines..", column, row); break;
case CT_Button: ImGui::Button(label); break;
case CT_FillButton: ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f)); break;
case CT_InputText: ImGui::SetNextItemWidth(-FLT_MIN); ImGui::InputText("##", text_buf, IM_ARRAYSIZE(text_buf)); break;
}
ImGui::PopID();
}
ImGui::EndTable();
}
@ -3959,6 +3992,33 @@ static void ShowDemoWindowTables()
}
ImGui::EndTable();
}
ImGui::Spacing();
ImGui::TextUnformatted("Stretch + ScrollX");
ImGui::SameLine();
HelpMarker(
"Showcase using Stretch columns + ScrollX together: "
"this is rather unusual and only makes sense when specifying an 'inner_width' for the table!\n"
"Without an explicit value, inner_width is == outer_size.x and therefore using Stretch columns + ScrollX together doesn't make sense.");
static ImGuiTableFlags flags2 = ImGuiTableFlags_SizingPolicyStretch | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg | ImGuiTableFlags_ContextMenuInBody;
static float inner_width = 1000.0f;
PushStyleCompact();
ImGui::PushID("flags3");
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags2, ImGuiTableFlags_ScrollX);
ImGui::DragFloat("inner_width", &inner_width, 1.0f, 0.0f, FLT_MAX, "%.1f");
ImGui::PopItemWidth();
ImGui::PopID();
PopStyleCompact();
if (ImGui::BeginTable("##table2", 7, flags2, outer_size, inner_width))
{
for (int cell = 0; cell < 20 * 7; cell++)
{
ImGui::TableNextColumn();
ImGui::Text("Hello world %d,%d", ImGui::TableGetColumnIndex(), ImGui::TableGetRowIndex());
}
ImGui::EndTable();
}
ImGui::TreePop();
}
@ -4028,7 +4088,43 @@ static void ShowDemoWindowTables()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Nested"))
if (ImGui::TreeNode("Columns widths"))
{
HelpMarker("Using TableSetupColumn() to setup explicit width.");
static ImGuiTableFlags flags = ImGuiTableFlags_None;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 4, flags))
{
// We could also set ImGuiTableFlags_SizingPolicyFixed on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 30.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 15.0f);
for (int row = 0; row < 5; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 4; column++)
{
ImGui::TableSetColumnIndex(column);
if (row == 0)
ImGui::Text("(%.2f)", ImGui::GetContentRegionAvail().x);
ImGui::Text("Hello %d,%d", column, row);
}
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Nested tables"))
{
HelpMarker("This demonstrate embedding a table into another table cell.");
@ -4070,141 +4166,6 @@ static void ShowDemoWindowTables()
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Sizing policies, cell contents"))
{
HelpMarker("This section allows you to interact and see the effect of StretchX vs FixedX sizing policies depending on whether Scroll is enabled and the contents of your columns.");
enum ContentsType { CT_ShortText, CT_LongText, CT_Button, CT_FillButton, CT_InputText };
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg;
static int contents_type = CT_LongText;
static int column_count = 3;
PushStyleCompact();
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
ImGui::Combo("Contents", &contents_type, "Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
if (contents_type == CT_FillButton)
{
ImGui::SameLine();
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);
ImGui::PopItemWidth();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", &flags, ImGuiTableFlags_BordersInnerH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", &flags, ImGuiTableFlags_BordersOuterH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags, ImGuiTableFlags_ScrollX);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", &flags, ImGuiTableFlags_ScrollY);
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyStretch", &flags, ImGuiTableFlags_SizingPolicyStretch))
flags &= ~ImGuiTableFlags_SizingPolicyFixed; // 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_SizingPolicyFixed", &flags, ImGuiTableFlags_SizingPolicyFixed))
flags &= ~ImGuiTableFlags_SizingPolicyStretch; // 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_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_Resizable", &flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", &flags, ImGuiTableFlags_NoClip);
PopStyleCompact();
ImVec2 outer_size(-FLT_MIN, TEXT_BASE_HEIGHT * 7);
if (ImGui::BeginTable("##nways", column_count, flags, outer_size))
{
for (int cell = 0; cell < 10 * column_count; cell++)
{
ImGui::TableNextColumn();
int column = ImGui::TableGetColumnIndex();
int row = ImGui::TableGetRowIndex();
ImGui::PushID(cell);
char label[32];
static char text_buf[32] = "";
sprintf(label, "Hello %d,%d", column, row);
switch (contents_type)
{
case CT_ShortText: ImGui::TextUnformatted(label); break;
case CT_LongText: ImGui::Text("Some longer text %d,%d\nOver two lines..", column, row); break;
case CT_Button: ImGui::Button(label); break;
case CT_FillButton: ImGui::Button(label, ImVec2(-FLT_MIN, 0.0f)); break;
case CT_InputText: ImGui::SetNextItemWidth(-FLT_MIN); ImGui::InputText("##", text_buf, IM_ARRAYSIZE(text_buf)); break;
}
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TextUnformatted("Item Widths");
ImGui::SameLine();
HelpMarker("Showcase using PushItemWidth() and how it is preserved on a per-column basis");
if (ImGui::BeginTable("##table2", 3, ImGuiTableFlags_Borders))
{
ImGui::TableSetupColumn("small");
ImGui::TableSetupColumn("half");
ImGui::TableSetupColumn("right-align");
ImGui::TableHeadersRow();
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
if (row == 0)
{
// Setup ItemWidth once (instead of setting up every time, which is also possible but less efficient)
ImGui::TableSetColumnIndex(0);
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 3.0f); // Small
ImGui::TableSetColumnIndex(1);
ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
ImGui::TableSetColumnIndex(2);
ImGui::PushItemWidth(-FLT_MIN); // Right-aligned
}
// Draw our contents
static float dummy_f = 0.0f;
ImGui::PushID(row);
ImGui::TableSetColumnIndex(0);
ImGui::SliderFloat("float0", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(1);
ImGui::SliderFloat("float1", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(2);
ImGui::SliderFloat("float2", &dummy_f, 0.0f, 1.0f);
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TextUnformatted("Stretch + ScrollX");
ImGui::SameLine();
HelpMarker(
"Showcase using Stretch columns + ScrollX together: "
"this is rather unusual and only makes sense when specifying an 'inner_width' for the table!\n"
"Without an explicit value, inner_width is == outer_size.x and therefore using Stretch columns + ScrollX together doesn't make sense.");
static ImGuiTableFlags flags3 = ImGuiTableFlags_SizingPolicyStretch | ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg;
static float inner_width = 1000.0f;
PushStyleCompact();
ImGui::PushID("flags3");
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 30);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", &flags3, ImGuiTableFlags_ScrollX);
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyStretch", &flags3, ImGuiTableFlags_SizingPolicyStretch))
flags3 &= ~ImGuiTableFlags_SizingPolicyFixed; // Can't specify both sizing polices so we clear the other
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyFixed", &flags3, ImGuiTableFlags_SizingPolicyFixed))
flags3 &= ~ImGuiTableFlags_SizingPolicyStretch; // Can't specify both sizing polices so we clear the other
ImGui::DragFloat("inner_width", &inner_width, 1.0f, 0.0f, FLT_MAX, "%.1f");
ImGui::PopItemWidth();
ImGui::PopID();
PopStyleCompact();
if (ImGui::BeginTable("##table3", 7, flags3 | ImGuiTableFlags_SizingPolicyStretch | ImGuiTableFlags_ContextMenuInBody, outer_size, inner_width))
{
for (int cell = 0; cell < 20 * 7; cell++)
{
ImGui::TableNextColumn();
ImGui::Text("Hello world %d,%d", ImGui::TableGetColumnIndex(), ImGui::TableGetRowIndex());
}
ImGui::EndTable();
}
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Row height"))
@ -4232,11 +4193,15 @@ static void ShowDemoWindowTables()
// The default value of outer_size.x is -FLT_MIN which right-align tables.
// Using outer_size.x == 0.0f on a table with no scrolling and no stretch column we can make them tighter.
ImGui::Text("Using auto/all width, using NoHostExtendY:");
PushStyleCompact();
static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_ContextMenuInBody | ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingPolicyFixed;
static bool use_all_width = false;
ImGui::Checkbox("Use all width", &use_all_width);
static bool fixed_fill = false;
ImGui::Checkbox("fill", &fixed_fill);
ImGui::CheckboxFlags("ImGuiTableFlags_NoHostExtendY", &flags, ImGuiTableFlags_NoHostExtendY);
if (ImGui::BeginTable("##table3", 3, flags, ImVec2(use_all_width ? -FLT_MIN : 0.0f, TEXT_BASE_HEIGHT * 5.5f)))
PopStyleCompact();
ImVec2 outer_size = ImVec2(fixed_fill ? -FLT_MIN : 0.0f, TEXT_BASE_HEIGHT * 5.5f);
if (ImGui::BeginTable("##table3", 3, flags, outer_size))
{
for (int row = 0; row < 10; row++)
{
@ -4414,6 +4379,50 @@ static void ShowDemoWindowTables()
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Item width"))
{
HelpMarker(
"Showcase using PushItemWidth() and how it is preserved on a per-column basis.\n\n"
"Note that on auto-resizing non-resizable fixed columns, querying the content width for e.g. right-alignment doesn't make sense.");
if (ImGui::BeginTable("##table2", 3, ImGuiTableFlags_Borders))
{
ImGui::TableSetupColumn("small");
ImGui::TableSetupColumn("half");
ImGui::TableSetupColumn("right-align");
ImGui::TableHeadersRow();
for (int row = 0; row < 3; row++)
{
ImGui::TableNextRow();
if (row == 0)
{
// Setup ItemWidth once (instead of setting up every time, which is also possible but less efficient)
ImGui::TableSetColumnIndex(0);
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 3.0f); // Small
ImGui::TableSetColumnIndex(1);
ImGui::PushItemWidth(-ImGui::GetContentRegionAvail().x * 0.5f);
ImGui::TableSetColumnIndex(2);
ImGui::PushItemWidth(-FLT_MIN); // Right-aligned
}
// Draw our contents
static float dummy_f = 0.0f;
ImGui::PushID(row);
ImGui::TableSetColumnIndex(0);
ImGui::SliderFloat("float0", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(1);
ImGui::SliderFloat("float1", &dummy_f, 0.0f, 1.0f);
ImGui::TableSetColumnIndex(2);
ImGui::SliderFloat("float2", &dummy_f, 0.0f, 1.0f);
ImGui::PopID();
}
ImGui::EndTable();
}
ImGui::TreePop();
}
// Demonstrate using TableHeader() calls instead of TableHeadersRow()
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
@ -4627,10 +4636,12 @@ static void ShowDemoWindowTables()
ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Sortable | ImGuiTableFlags_SortMulti
| ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_NoBordersInBody
| ImGuiTableFlags_ScrollY;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_SortMulti", &flags, ImGuiTableFlags_SortMulti);
ImGui::SameLine(); HelpMarker("When sorting is enabled: hold shift when clicking headers to sort on multiple column. TableGetSortSpecs() may return specs where (SpecsCount > 1).");
ImGui::CheckboxFlags("ImGuiTableFlags_SortTristate", &flags, ImGuiTableFlags_SortTristate);
ImGui::SameLine(); HelpMarker("When sorting is enabled: allow no sorting, disable default sorting. TableGetSortSpecs() may return specs where (SpecsCount == 0).");
PopStyleCompact();
if (ImGui::BeginTable("##table", 4, flags, ImVec2(-FLT_MIN, TEXT_BASE_HEIGHT * 15), 0.0f))
{
@ -4749,6 +4760,7 @@ static void ShowDemoWindowTables()
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyFixed", &flags, ImGuiTableFlags_SizingPolicyFixed))
flags &= ~ImGuiTableFlags_SizingPolicyStretch; // 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.");
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.");

9
imgui_tables.cpp
View File

@ -770,7 +770,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
}
else
{
IM_ASSERT(column->Flags & ImGuiTableColumnFlags_WidthStretch);
IM_ASSERT_PARANOID(column->Flags & ImGuiTableColumnFlags_WidthStretch);
// Revert or initialize weight (when column->StretchWeight < 0.0f normally it means there has been no init value so it'll always default to 1.0f)
if (column->AutoFitQueue != 0x00 || column->StretchWeight < 0.0f)
@ -788,7 +788,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
}
table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
// [Part 4] Apply "same widths" feature.
// [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;
@ -2343,9 +2343,10 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
const bool is_resizable = (column->Flags & (ImGuiTableColumnFlags_NoResize | ImGuiTableColumnFlags_NoDirectResize_)) == 0;
const bool is_frozen_separator = (table->FreezeColumnsCount != -1 && table->FreezeColumnsCount == order_n + 1);
if (column->MaxX > table->InnerClipRect.Max.x && !is_resized)// && is_hovered)
if (column->MaxX > table->InnerClipRect.Max.x && !is_resized)
continue;
if (column->NextEnabledColumn == -1 && !is_resizable && (table->Flags & ImGuiTableFlags_SameWidths) == 0)
if (column->NextEnabledColumn == -1 && !is_resizable)
if ((table->Flags & ImGuiTableFlags_SameWidths) == 0 || 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;