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Tables: TableHeader() uses provided row min header rather than incremental one to allow multi-item multi-line in header cells. Demo TableHeader() - will caveat, comments.
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@ -3940,6 +3940,54 @@ static void ShowDemoWindowTables()
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ImGui::TreePop();
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}
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// Demonstrate using TableHeader() calls instead of TableAutoHeaders()
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// FIXME-TABLE: Currently this doesn't get us feature-parity with TableAutoHeaders(), e.g. missing context menu. Tables API needs some work!
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if (open_action != -1)
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ImGui::SetNextItemOpen(open_action != 0);
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if (ImGui::TreeNode("Custom headers"))
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{
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const int COLUMNS_COUNT = 3;
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if (ImGui::BeginTable("##table1", COLUMNS_COUNT, ImGuiTableFlags_Borders | ImGuiTableFlags_Reorderable))
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{
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ImGui::TableSetupColumn("Apricot");
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ImGui::TableSetupColumn("Banana");
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ImGui::TableSetupColumn("Cherry");
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// Dummy entire-column selection storage
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// FIXME: It would be nice to actually demonstrate full-featured selection using those checkbox.
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static bool column_selected[3] = {};
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// Instead of calling TableAutoHeaders() we'll submit custom headers ourselves
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ImGui::TableNextRow(ImGuiTableRowFlags_Headers);
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for (int column = 0; column < COLUMNS_COUNT; column++)
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{
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ImGui::TableSetColumnIndex(column);
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const char* column_name = ImGui::TableGetColumnName(column); // Retrieve name passed to TableSetupColumn()
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ImGui::PushID(column);
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ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
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ImGui::Checkbox("##checkall", &column_selected[column]);
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ImGui::PopStyleVar();
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ImGui::SameLine(0.0f, ImGui::GetStyle().ItemInnerSpacing.x);
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ImGui::TableHeader(column_name);
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ImGui::PopID();
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}
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for (int row = 0; row < 5; row++)
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{
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ImGui::TableNextRow();
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for (int column = 0; column < 3; column++)
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{
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char buf[32];
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sprintf(buf, "Cell %d,%d", row, column);
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ImGui::TableSetColumnIndex(column);
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ImGui::Selectable(buf, column_selected[column]);
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}
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}
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ImGui::EndTable();
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}
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ImGui::TreePop();
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}
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static const char* template_items_names[] =
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{
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"Banana", "Apple", "Cherry", "Watermelon", "Grapefruit", "Strawberry", "Mango",
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@ -1898,6 +1898,7 @@ struct ImGuiTable
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ImS16 InstanceInteracted; // Mark which instance (generally 0) of the same ID is being interacted with
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float RowPosY1;
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float RowPosY2;
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float RowMinHeight; // Height submitted to TableNextRow()
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float RowTextBaseline;
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ImGuiTableRowFlags RowFlags : 16; // Current row flags, see ImGuiTableRowFlags_
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ImGuiTableRowFlags LastRowFlags : 16;
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@ -1419,7 +1419,7 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags,
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}
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// Starts into the first cell of a new row
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void ImGui::TableNextRow(ImGuiTableRowFlags row_flags, float min_row_height)
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void ImGui::TableNextRow(ImGuiTableRowFlags row_flags, float row_min_height)
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{
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ImGuiContext& g = *GImGui;
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ImGuiTable* table = g.CurrentTable;
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@ -1431,12 +1431,13 @@ void ImGui::TableNextRow(ImGuiTableRowFlags row_flags, float min_row_height)
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table->LastRowFlags = table->RowFlags;
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table->RowFlags = row_flags;
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table->RowMinHeight = row_min_height;
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TableBeginRow(table);
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// We honor min_row_height requested by user, but cannot guarantee per-row maximum height,
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// because that would essentially require a unique clipping rectangle per-cell.
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table->RowPosY2 += table->CellPaddingY * 2.0f;
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table->RowPosY2 = ImMax(table->RowPosY2, table->RowPosY1 + min_row_height);
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table->RowPosY2 = ImMax(table->RowPosY2, table->RowPosY1 + row_min_height);
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TableBeginCell(table, 0);
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}
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@ -1937,6 +1938,7 @@ void ImGui::TableAutoHeaders()
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// Emit a column header (text + optional sort order)
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// We cpu-clip text here so that all columns headers can be merged into a same draw call.
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// Note that because of how we cpu-clip and display sorting indicators, you _cannot_ use SameLine() after a TableHeader()
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// FIXME-TABLE: Should hold a selection state.
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// FIXME-TABLE: Style confusion between CellPadding.y and FramePadding.y
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void ImGui::TableHeader(const char* label)
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@ -1961,7 +1963,7 @@ void ImGui::TableHeader(const char* label)
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// If we already got a row height, there's use that.
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ImRect cell_r = TableGetCellRect();
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float label_height = ImMax(label_size.y, cell_r.GetHeight() - g.Style.CellPadding.y * 2.0f);
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float label_height = ImMax(label_size.y, table->RowMinHeight - g.Style.CellPadding.y * 2.0f);
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//GetForegroundDrawList()->AddRect(cell_r.Min, cell_r.Max, IM_COL32(255, 0, 0, 255)); // [DEBUG]
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ImRect work_r = cell_r;
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