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Tables: (Breaking) Rename TableAutoHeaders() to TableHeadersRow() + added TableGetColumnCount().

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This commit is contained in:
ocornut
2020-09-24 14:33:40 +02:00
parent 3021608392
commit 9b37087fbe
3 changed files with 44 additions and 40 deletions
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37
imgui_tables.cpp
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@ -75,11 +75,11 @@
// | TableUpdateBorders() - detect hovering columns for resize, ahead of contents submission
// | TableDrawContextMenu() - draw right-click context menu
//-----------------------------------------------------------------------------
// - TableAutoHeaders() or TableHeader() user submit a headers row (optional)
// - TableHeadersRow() or TableHeader() user submit a headers row (optional)
// | TableSortSpecsClickColumn() - when left-clicked: alter sort order and sort direction
// | TableOpenContextMenu() - when right-clicked: trigger opening of the default context menu
// - TableGetSortSpecs() user queries updated sort specs (optional, generally after submitting headers)
// - TableNextRow() / TableNextCell() user begin into the first row, also automatically called by TableAutoHeaders()
// - TableNextRow() / TableNextCell() user begin into the first row, also automatically called by TableHeadersRow()
// | TableEndCell() - close existing cell if not the first time
// | TableBeginCell() - enter into current cell
// - [...] user emit contents
@ -1867,6 +1867,13 @@ bool ImGui::TableNextCell()
return (table->VisibleUnclippedMaskByIndex & ((ImU64)1 << column_n)) != 0;
}
int ImGui::TableGetColumnCount()
{
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
return table ? table->ColumnsCount : 0;
}
const char* ImGui::TableGetColumnName(int column_n)
{
ImGuiContext& g = *GImGui;
@ -2066,18 +2073,20 @@ void ImGui::TableOpenContextMenu(ImGuiTable* table, int column_n)
// This is a helper to output TableHeader() calls based on the column names declared in TableSetupColumn().
// The intent is that advanced users willing to create customized headers would not need to use this helper
// and can create their own! For example: TableHeader() may be preceeded by Checkbox() or other custom widgets.
void ImGui::TableAutoHeaders()
// See 'Demo->Tables->Custom headers' for a demonstration of implementing a custom version of this.
void ImGui::TableHeadersRow()
{
ImGuiStyle& style = ImGui::GetStyle();
ImGuiContext& g = *GImGui;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableAutoHeaders() after BeginTable()!");
const int columns_count = table->ColumnsCount;
IM_ASSERT(table != NULL && "Need to call TableHeadersRow() after BeginTable()!");
// Calculate row height (for the unlikely case that labels may be are multi-line)
float row_y1 = GetCursorScreenPos().y;
// If we didn't do that, uneven header height would work but their highlight won't cover the full row height.
float row_height = GetTextLineHeight();
const float row_y1 = GetCursorScreenPos().y;
const int columns_count = TableGetColumnCount();
for (int column_n = 0; column_n < columns_count; column_n++)
if (TableGetColumnIsVisible(column_n))
row_height = ImMax(row_height, CalcTextSize(TableGetColumnName(column_n)).y);
@ -2095,8 +2104,6 @@ void ImGui::TableAutoHeaders()
if (!TableSetColumnIndex(column_n))
continue;
const char* name = TableGetColumnName(column_n);
// [DEBUG] Test custom user elements
#if 0
if (column_n < 2)
@ -2112,23 +2119,19 @@ void ImGui::TableAutoHeaders()
#endif
// Push an id to allow unnamed labels (generally accidental, but let's behave nicely with them)
// - in your own code you may omit the PushID/PopID all-together, provided you know you know they won't collide
// - in your own code you may omit the PushID/PopID all-together, provided you know they won't collide
// - table->InstanceCurrent is only >0 when we use multiple BeginTable/EndTable calls with same identifier.
const char* name = TableGetColumnName(column_n);
PushID(table->InstanceCurrent * table->ColumnsCount + column_n);
TableHeader(name);
PopID();
}
// FIXME-TABLE: This is not user-land code any more + need to explain WHY this is here! (added in fa88f023)
//window->SkipItems = table->HostSkipItems;
// Allow opening popup from the right-most section after the last column.
// (We don't actually need to use ImGuiHoveredFlags_AllowWhenBlockedByPopup because in reality this is generally
// not required anymore.. because popup opening code tends to be reacting on IsMouseReleased() and the click would
// already have closed any other popups!)
// FIXME-TABLE: TableOpenContextMenu() is not public yet.
ImVec2 mouse_pos = ImGui::GetMousePos();
if (IsMouseReleased(1) && TableGetHoveredColumn() == columns_count)
if (g.IO.MousePos.y >= row_y1 && g.IO.MousePos.y < row_y1 + row_height)
if (mouse_pos.y >= row_y1 && mouse_pos.y < row_y1 + row_height)
TableOpenContextMenu(table, -1); // Will open a non-column-specific popup.
}
@ -2145,7 +2148,7 @@ void ImGui::TableHeader(const char* label)
return;
ImGuiTable* table = g.CurrentTable;
IM_ASSERT(table != NULL && "Need to call TableAutoHeaders() after BeginTable()!");
IM_ASSERT(table != NULL && "Need to call TableHeader() after BeginTable()!");
IM_ASSERT(table->CurrentColumn != -1);
const int column_n = table->CurrentColumn;
ImGuiTableColumn* column = &table->Columns[column_n];