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Tables: Made demo options consistently compact, replaced constants with font-based sizes, added comments on memory allocations.

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This commit is contained in:
ocornut 2020-10-07 16:33:33 +02:00
parent 02b27b75a4
commit 77e561aaf3
2 changed files with 166 additions and 109 deletions
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171
imgui_demo.cpp
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@ -3287,12 +3287,29 @@ struct MyItem
const ImGuiTableSortSpecs* MyItem::s_current_sort_specs = NULL;
}
// Make the UI compact because there are so many fields
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)));
}
static void PopStyleCompact()
{
ImGui::PopStyleVar(2);
}
static void ShowDemoWindowTables()
{
//ImGui::SetNextItemOpen(true, ImGuiCond_Once);
if (!ImGui::CollapsingHeader("Tables & Columns"))
return;
// Using those as a base value to create width/height that are factor of the size of our font
const float TEXT_BASE_WIDTH = ImGui::CalcTextSize("A").x;
const float TEXT_BASE_HEIGHT = ImGui::GetTextLineHeightWithSpacing();
ImGui::PushID("Tables");
int open_action = -1;
@ -3327,7 +3344,7 @@ static void ShowDemoWindowTables()
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Basic"))
{
// Here we will showcase 4 different ways to output a table. They are very simple variations of a same thing!
// Here we will showcase three different ways to output a table. They are very simple variations of a same thing!
// Basic use of tables using TableNextRow() to create a new row, and TableSetColumnIndex() to select the column.
// In many situations, this is the most flexible and easy to use pattern.
@ -3366,7 +3383,9 @@ static void ShowDemoWindowTables()
// Another subtle variant, we call TableNextColumn() _before_ each cell. At the end of a row, TableNextColumn() will create a new row.
// Note that we never TableNextRow() here!
HelpMarker("Only using TableNextColumn(), which tends to be convenient for tables where every cells contains the same type of contents.\nThis is also more similar to the old NextColumn() function of the Columns API, and provided to facilitate the Columns->Tables API transition.");
HelpMarker(
"Only using TableNextColumn(), which tends to be convenient for tables where every cells contains the same type of contents.\n"
"This is also more similar to the old NextColumn() function of the Columns API, and provided to facilitate the Columns->Tables API transition.");
if (ImGui::BeginTable("##table4", 3))
{
for (int item = 0; item < 14; item++)
@ -3391,6 +3410,7 @@ static void ShowDemoWindowTables()
static bool display_width = false;
static int contents_type = CT_Text;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", (unsigned int*)&flags, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", (unsigned int*)&flags, ImGuiTableFlags_Borders);
ImGui::SameLine(); HelpMarker("ImGuiTableFlags_Borders\n = ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterV\n | ImGuiTableFlags_BordersInnerV\n | ImGuiTableFlags_BordersOuterH");
@ -3419,6 +3439,7 @@ static void ShowDemoWindowTables()
ImGui::SameLine(); ImGui::RadioButton("FillButton", &contents_type, CT_FillButton);
ImGui::Checkbox("Display headers", &display_headers);
ImGui::Checkbox("Display debug width", &display_width);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
{
@ -3477,9 +3498,11 @@ 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;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", (unsigned int*)&flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", (unsigned int*)&flags, ImGuiTableFlags_BordersV);
ImGui::SameLine(); HelpMarker("Using the _Resizable flag automatically enables the _BordersV flag as well.");
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
{
@ -3530,9 +3553,8 @@ static void ShowDemoWindowTables()
{
HelpMarker("Using columns flag to alter resizing policy on a per-column basis.");
static ImGuiTableFlags flags = ImGuiTableFlags_SizingPolicyFixedX | ImGuiTableFlags_RowBg | ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
//ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", (unsigned int*)&flags, ImGuiTableFlags_ScrollX); // FIXME-TABLE: Explain or fix the effect of enable Scroll on outer_size
if (ImGui::BeginTable("##table1", 3, flags, ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 6)))
if (ImGui::BeginTable("##table1", 3, flags))
{
ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);// | ImGuiTableColumnFlags_NoResize);
ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
@ -3549,7 +3571,7 @@ static void ShowDemoWindowTables()
}
ImGui::EndTable();
}
if (ImGui::BeginTable("##table2", 6, flags, ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 6)))
if (ImGui::BeginTable("##table2", 6, flags))
{
ImGui::TableSetupColumn("AAA", ImGuiTableColumnFlags_WidthFixed);
ImGui::TableSetupColumn("BBB", ImGuiTableColumnFlags_WidthFixed);
@ -3578,11 +3600,13 @@ static void ShowDemoWindowTables()
{
HelpMarker("Click and drag column headers to reorder columns.\n\nYou can also right-click on a header to open a context menu.");
static ImGuiTableFlags flags = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_NoBordersInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", (unsigned int*)&flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", (unsigned int*)&flags, ImGuiTableFlags_Reorderable);
ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", (unsigned int*)&flags, ImGuiTableFlags_Hideable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", (unsigned int*)&flags, ImGuiTableFlags_NoBordersInBody);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", (unsigned int*)&flags, ImGuiTableFlags_NoBordersInBodyUntilResize);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
{
@ -3629,13 +3653,16 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNode("Explicit widths"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_None;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", (unsigned int*)&flags, ImGuiTableFlags_NoKeepColumnsVisible);
PopStyleCompact();
if (ImGui::BeginTable("##table1", 3, flags))
{
// We could also set ImGuiTableFlags_SizingPolicyFixedX on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 200.0f);
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();
@ -3655,10 +3682,15 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNode("Vertical scrolling, with clipping"))
{
HelpMarker("Here we activate ScrollY, which will create a child window container to allow hosting scrollable contents.\n\nWe also demonstrate using ImGuiListClipper to virtualize the submission of many items.");
ImVec2 size = ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 7);
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", (unsigned int*)&flags, ImGuiTableFlags_ScrollY);
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", (unsigned int*)&flags, ImGuiTableFlags_ScrollY);
PopStyleCompact();
// When using ScrollX or ScrollY we need to specify a size for our table container!
// Otherwise by default the table will fit all available space, like a BeginChild() call.
ImVec2 size = ImVec2(0, TEXT_BASE_HEIGHT * 8);
if (ImGui::BeginTable("##table1", 3, flags, size))
{
ImGui::TableSetupScrollFreeze(0, 1); // Make top row always visible
@ -3690,16 +3722,21 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNode("Horizontal scrolling"))
{
HelpMarker("When ScrollX is enabled, the default sizing policy becomes ImGuiTableFlags_SizingPolicyFixedX, as automatically stretching columns doesn't make much sense with horizontal scrolling.\n\nAlso note that as of the current version, you will almost always want to enable ScrollY along with ScrollX, because the container window won't automatically extend vertically to fix contents (this may be improved in future versions).");
ImVec2 size = ImVec2(0, ImGui::GetTextLineHeightWithSpacing() * 10);
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollX | ImGuiTableFlags_ScrollY | ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable;
static int freeze_cols = 1;
static int freeze_rows = 1;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", (unsigned int*)&flags, ImGuiTableFlags_ScrollY);
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
PopStyleCompact();
// When using ScrollX or ScrollY we need to specify a size for our table container!
// Otherwise by default the table will fit all available space, like a BeginChild() call.
ImVec2 size = ImVec2(0, TEXT_BASE_HEIGHT * 8);
if (ImGui::BeginTable("##table1", 7, flags, size))
{
ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
@ -3741,13 +3778,10 @@ static void ShowDemoWindowTables()
if (ImGui::BeginTable("##flags", column_count, ImGuiTableFlags_None))
{
PushStyleCompact();
for (int column = 0; column < column_count; column++)
{
// Make the UI compact because there are so many fields
ImGui::TableNextColumn();
ImGuiStyle& style = ImGui::GetStyle();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, 2));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, 2));
ImGui::PushID(column);
ImGui::AlignTextToFramePadding(); // FIXME-TABLE: Workaround for wrong text baseline propagation
ImGui::Text("Flags for '%s'", column_names[column]);
@ -3765,8 +3799,8 @@ static void ShowDemoWindowTables()
ImGui::CheckboxFlags("_IndentEnable", (unsigned int*)&column_flags[column], ImGuiTableColumnFlags_IndentEnable); ImGui::SameLine(); HelpMarker("Default for column 0");
ImGui::CheckboxFlags("_IndentDisable", (unsigned int*)&column_flags[column], ImGuiTableColumnFlags_IndentDisable); ImGui::SameLine(); HelpMarker("Default for column >0");
ImGui::PopID();
ImGui::PopStyleVar(2);
}
PopStyleCompact();
ImGui::EndTable();
}
@ -3777,9 +3811,10 @@ static void ShowDemoWindowTables()
for (int column = 0; column < column_count; column++)
ImGui::TableSetupColumn(column_names[column], column_flags[column]);
ImGui::TableHeadersRow();
float indent_step = (float)((int)TEXT_BASE_WIDTH / 2);
for (int row = 0; row < 8; row++)
{
ImGui::Indent(2.0f); // Add some indentation to demonstrate usage of per-column IndentEnable/IndentDisable flags.
ImGui::Indent(indent_step); // Add some indentation to demonstrate usage of per-column IndentEnable/IndentDisable flags.
ImGui::TableNextRow();
for (int column = 0; column < column_count; column++)
{
@ -3787,7 +3822,7 @@ static void ShowDemoWindowTables()
ImGui::Text("%s %s", (column == 0) ? "Indented" : "Hello", ImGui::TableGetColumnName(column));
}
}
ImGui::Unindent(2.0f * 8.0f);
ImGui::Unindent(indent_step * 8.0f);
ImGui::EndTable();
}
@ -3809,7 +3844,7 @@ static void ShowDemoWindowTables()
ImGui::TableNextColumn();
ImGui::Text("A0 Cell 0");
{
float rows_height = ImGui::GetTextLineHeightWithSpacing() * 2;
float rows_height = TEXT_BASE_HEIGHT * 2;
if (ImGui::BeginTable("recurse2", 2, ImGuiTableFlags_Borders | ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable))
{
ImGui::TableSetupColumn("B0");
@ -3844,11 +3879,12 @@ static void ShowDemoWindowTables()
{
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 int contents_type = CT_FillButton;
ImGui::SetNextItemWidth(ImGui::GetFontSize() * 12);
ImGui::Combo("Contents", &contents_type, "Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
static ImGuiTableFlags flags = ImGuiTableFlags_ScrollY | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_RowBg;
static int contents_type = CT_FillButton;
PushStyleCompact();
ImGui::SetNextItemWidth(TEXT_BASE_WIDTH * 22);
ImGui::Combo("Contents", &contents_type, "Short Text\0Long Text\0Button\0Fill Button\0InputText\0");
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", (unsigned int*)&flags, ImGuiTableFlags_BordersInnerH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterH", (unsigned int*)&flags, ImGuiTableFlags_BordersOuterH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", (unsigned int*)&flags, ImGuiTableFlags_BordersInnerV);
@ -3863,6 +3899,7 @@ static void ShowDemoWindowTables()
ImGui::SameLine(); HelpMarker("Default if _ScrollX if enabled. Makes columns use _WidthFixed by default, or _WidthAlwaysAutoResize if _Resizable is not set.");
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", (unsigned int*)&flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", (unsigned int*)&flags, ImGuiTableFlags_NoClip);
PopStyleCompact();
if (ImGui::BeginTable("##3ways", 3, flags, ImVec2(0, 100)))
{
@ -3896,16 +3933,17 @@ static void ShowDemoWindowTables()
{
// FIXME-TABLE: Vertical border not overridden the same way as horizontal one
HelpMarker("Setting style.CellPadding to (0,0).");
static ImGuiTableFlags flags = ImGuiTableFlags_Borders | ImGuiTableFlags_RowBg;
static bool no_widget_frame = false;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuter", (unsigned int*)&flags, ImGuiTableFlags_BordersOuter);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersH", (unsigned int*)&flags, ImGuiTableFlags_BordersH);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", (unsigned int*)&flags, ImGuiTableFlags_BordersV);
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", (unsigned int*)&flags, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", (unsigned int*)&flags, ImGuiTableFlags_Resizable);
static bool no_widget_frame = false;
ImGui::Checkbox("no_widget_frame", &no_widget_frame);
PopStyleCompact();
ImGui::PushStyleVar(ImGuiStyleVar_CellPadding, ImVec2(0, 0));
if (ImGui::BeginTable("##3ways", 3, flags))
@ -3942,7 +3980,7 @@ static void ShowDemoWindowTables()
{
for (int row = 0; row < 10; row++)
{
float min_row_height = (float)(int)(ImGui::GetFontSize() * 0.30f * row);
float min_row_height = (float)(int)(TEXT_BASE_HEIGHT * 0.30f * row);
ImGui::TableNextRow(ImGuiTableRowFlags_None, min_row_height);
ImGui::TableNextColumn();
ImGui::Text("min_row_height = %.2f", min_row_height);
@ -3957,19 +3995,21 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNode("Background color"))
{
static ImGuiTableFlags table_flags = ImGuiTableFlags_RowBg;
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", (unsigned int*)&table_flags, ImGuiTableFlags_Borders);
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", (unsigned int*)&table_flags, ImGuiTableFlags_RowBg);
ImGui::SameLine(); HelpMarker("ImGuiTableFlags_RowBg automatically sets RowBg0 to alternative colors pulled from the Style.");
static int row_bg_type = 1;
static int row_bg_target = 1;
static int cell_bg_type = 1;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_Borders", (unsigned int*)&table_flags, ImGuiTableFlags_Borders);
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", (unsigned int*)&table_flags, ImGuiTableFlags_RowBg);
ImGui::SameLine(); HelpMarker("ImGuiTableFlags_RowBg automatically sets RowBg0 to alternative colors pulled from the Style.");
ImGui::Combo("row bg type", (int*)&row_bg_type, "None\0Red\0Gradient\0");
ImGui::Combo("row bg target", (int*)&row_bg_target, "RowBg0\0RowBg1\0"); ImGui::SameLine(); HelpMarker("Target RowBg0 to override the alternating odd/even colors,\nTarget RowBg1 to blend with them.");
ImGui::Combo("cell bg type", (int*)&cell_bg_type, "None\0Blue\0"); ImGui::SameLine(); HelpMarker("We are colorizing cells to B1->C2 here.");
IM_ASSERT(row_bg_type >= 0 && row_bg_type <= 2);
IM_ASSERT(row_bg_target >= 0 && row_bg_target <= 1);
IM_ASSERT(cell_bg_type >= 0 && cell_bg_type <= 1);
PopStyleCompact();
if (ImGui::BeginTable("##Table", 5, table_flags))
{
@ -4012,14 +4052,16 @@ static void ShowDemoWindowTables()
if (ImGui::TreeNode("Tree view"))
{
static ImGuiTableFlags flags = ImGuiTableFlags_BordersV | ImGuiTableFlags_BordersOuterH | ImGuiTableFlags_Resizable | ImGuiTableFlags_RowBg | ImGuiTableFlags_NoBordersInBody;
//PushStyleCompact();
//ImGui::CheckboxFlags("ImGuiTableFlags_Scroll", (unsigned int*)&flags, ImGuiTableFlags_Scroll);
//PopStyleCompact();
if (ImGui::BeginTable("##3ways", 3, flags))
{
// The first column will use the default _WidthStretch when ScrollX is Off and _WidthFixed when ScrollX is On
ImGui::TableSetupColumn("Name", ImGuiTableColumnFlags_NoHide);
ImGui::TableSetupColumn("Size", ImGuiTableColumnFlags_WidthFixed, ImGui::GetFontSize() * 6);
ImGui::TableSetupColumn("Type", ImGuiTableColumnFlags_WidthFixed, ImGui::GetFontSize() * 10);
ImGui::TableSetupColumn("Size", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 12.0f);
ImGui::TableSetupColumn("Type", ImGuiTableColumnFlags_WidthFixed, TEXT_BASE_WIDTH * 18.0f);
ImGui::TableHeadersRow();
// Simple storage to output a dummy file-system.
@ -4133,7 +4175,10 @@ static void ShowDemoWindowTables()
{
HelpMarker("By default, right-clicking over a TableHeadersRow()/TableHeader() line will open the default context-menu.\nUsing ImGuiTableFlags_ContextMenuInBody we also allow right-clicking over columns body.");
static ImGuiTableFlags flags1 = ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_Borders | ImGuiTableFlags_ContextMenuInBody;
PushStyleCompact();
ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", (unsigned int*)&flags1, ImGuiTableFlags_ContextMenuInBody);
PopStyleCompact();
// Context Menus: first example
// [1.1] Right-click on the TableHeadersRow() line to open the default table context menu.
@ -4256,11 +4301,11 @@ static void ShowDemoWindowTables()
}
}
static ImGuiTableFlags flags =
ImGuiTableFlags flags =
ImGuiTableFlags_Resizable | ImGuiTableFlags_Reorderable | ImGuiTableFlags_Hideable | ImGuiTableFlags_MultiSortable
| ImGuiTableFlags_RowBg | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_BordersV | ImGuiTableFlags_NoBordersInBody
| ImGuiTableFlags_ScrollY;
if (ImGui::BeginTable("##table", 4, flags, ImVec2(0, 250), 0.0f))
if (ImGui::BeginTable("##table", 4, flags, ImVec2(0, TEXT_BASE_HEIGHT * 15), 0.0f))
{
// Declare columns
// We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
@ -4328,24 +4373,22 @@ static void ShowDemoWindowTables()
static int freeze_cols = 1;
static int freeze_rows = 1;
static int items_count = IM_ARRAYSIZE(template_items_names);
static ImVec2 outer_size_value = ImVec2(0, 250);
static ImVec2 outer_size_value = ImVec2(0, TEXT_BASE_HEIGHT * 15);
static float row_min_height = 0.0f; // Auto
static float inner_width_with_scroll = 0.0f; // Auto-extend
static bool outer_size_enabled = true;
static bool show_headers = true;
static bool show_wrapped_text = false;
//static ImGuiTextFilter filter;
//ImGui::SetNextItemOpen(true, ImGuiCond_Once); // FIXME-TABLE: Enabling this results in initial clipped first pass on table which affects sizing
if (ImGui::TreeNodeEx("Options"))
//ImGui::SetNextItemOpen(true, ImGuiCond_Once); // FIXME-TABLE: Enabling this results in initial clipped first pass on table which tend to affects column sizing
if (ImGui::TreeNode("Options"))
{
// Make the UI compact because there are so many fields
ImGuiStyle& style = ImGui::GetStyle();
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(style.FramePadding.x, 1));
ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(style.ItemSpacing.x, 2));
ImGui::PushItemWidth(200);
PushStyleCompact();
ImGui::PushItemWidth(TEXT_BASE_WIDTH * 28.0f);
ImGui::BulletText("Features:");
ImGui::Indent();
if (ImGui::TreeNodeEx("Features:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", (unsigned int*)&flags, ImGuiTableFlags_Resizable);
ImGui::CheckboxFlags("ImGuiTableFlags_Reorderable", (unsigned int*)&flags, ImGuiTableFlags_Reorderable);
ImGui::CheckboxFlags("ImGuiTableFlags_Hideable", (unsigned int*)&flags, ImGuiTableFlags_Hideable);
@ -4353,10 +4396,11 @@ static void ShowDemoWindowTables()
ImGui::CheckboxFlags("ImGuiTableFlags_MultiSortable", (unsigned int*)&flags, ImGuiTableFlags_MultiSortable);
ImGui::CheckboxFlags("ImGuiTableFlags_NoSavedSettings", (unsigned int*)&flags, ImGuiTableFlags_NoSavedSettings);
ImGui::CheckboxFlags("ImGuiTableFlags_ContextMenuInBody", (unsigned int*)&flags, ImGuiTableFlags_ContextMenuInBody);
ImGui::Unindent();
ImGui::TreePop();
}
ImGui::BulletText("Decoration:");
ImGui::Indent();
if (ImGui::TreeNodeEx("Decoration:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_RowBg", (unsigned int*)&flags, ImGuiTableFlags_RowBg);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersV", (unsigned int*)&flags, ImGuiTableFlags_BordersV);
ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", (unsigned int*)&flags, ImGuiTableFlags_BordersOuterV);
@ -4366,10 +4410,11 @@ static void ShowDemoWindowTables()
ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerH", (unsigned int*)&flags, ImGuiTableFlags_BordersInnerH);
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBody", (unsigned int*)&flags, ImGuiTableFlags_NoBordersInBody); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body (borders will always appears in Headers");
ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", (unsigned int*)&flags, ImGuiTableFlags_NoBordersInBodyUntilResize); ImGui::SameLine(); HelpMarker("Disable vertical borders in columns Body until hovered for resize (borders will always appears in Headers)");
ImGui::Unindent();
ImGui::TreePop();
}
ImGui::BulletText("Padding, Sizing:");
ImGui::Indent();
if (ImGui::TreeNodeEx("Sizing, Padding:", ImGuiTreeNodeFlags_DefaultOpen))
{
if (ImGui::CheckboxFlags("ImGuiTableFlags_SizingPolicyStretchX", (unsigned int*)&flags, ImGuiTableFlags_SizingPolicyStretchX))
flags &= ~(ImGuiTableFlags_SizingPolicyMaskX_ ^ ImGuiTableFlags_SizingPolicyStretchX); // 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.");
@ -4382,21 +4427,24 @@ static void ShowDemoWindowTables()
ImGui::SameLine(); HelpMarker("Only available if ScrollX is disabled.");
ImGui::CheckboxFlags("ImGuiTableFlags_NoClip", (unsigned int*)&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::Unindent();
ImGui::TreePop();
}
ImGui::BulletText("Scrolling:");
ImGui::Indent();
if (ImGui::TreeNodeEx("Scrolling:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollX", (unsigned int*)&flags, ImGuiTableFlags_ScrollX);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", (unsigned int*)&flags, ImGuiTableFlags_ScrollY);
ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_cols", &freeze_cols, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::CheckboxFlags("ImGuiTableFlags_ScrollY", (unsigned int*)&flags, ImGuiTableFlags_ScrollY);
ImGui::SameLine();
ImGui::SetNextItemWidth(ImGui::GetFrameHeight());
ImGui::DragInt("freeze_rows", &freeze_rows, 0.2f, 0, 9, NULL, ImGuiSliderFlags_NoInput);
ImGui::TreePop();
}
ImGui::Unindent();
ImGui::BulletText("Other:");
ImGui::Indent();
if (ImGui::TreeNodeEx("Other:", ImGuiTreeNodeFlags_DefaultOpen))
{
ImGui::Checkbox("show_headers", &show_headers);
ImGui::Checkbox("show_wrapped_text", &show_wrapped_text);
ImGui::DragFloat2("##OuterSize", &outer_size_value.x);
@ -4410,13 +4458,14 @@ static void ShowDemoWindowTables()
ImGui::DragFloat("inner_width (when ScrollX active)", &inner_width_with_scroll, 1.0f, 0.0f, FLT_MAX);
ImGui::DragFloat("row_min_height", &row_min_height, 1.0f, 0.0f, FLT_MAX);
ImGui::SameLine(); HelpMarker("Specify height of the Selectable item.");
ImGui::DragInt("items_count", &items_count, 0.1f, 0, 5000);
ImGui::DragInt("items_count", &items_count, 0.1f, 0, 9999);
ImGui::Combo("contents_type (first column)", &contents_type, contents_type_names, IM_ARRAYSIZE(contents_type_names));
//filter.Draw("filter");
ImGui::Unindent();
ImGui::TreePop();
}
ImGui::PopItemWidth();
ImGui::PopStyleVar(2);
PopStyleCompact();
ImGui::Spacing();
ImGui::TreePop();
}

8
imgui_tables.cpp
View File

@ -312,6 +312,14 @@ bool ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
table->RawData.resize(0);
if (table->RawData.Size == 0)
{
// For reference, the total _allocation count_ for a table is:
// + 0 (for ImGuiTable instance, we sharing allocation in g.Tables pool)
// + 1 (for table->RawData allocated below)
// + 1 (for table->Splitter._Channels)
// + 2 * active_channels_count (for ImDrawCmd and ImDrawIdx buffers inside channels)
// Where active_channels_count is variable but often == columns_count or columns_count + 1, see TableUpdateDrawChannels() for details.
// Unused channels don't perform their +2 allocations.
// Allocate single buffer for our arrays
ImSpanAllocator<3> span_allocator;
span_allocator.ReserveBytes(0, columns_count * sizeof(ImGuiTableColumn));