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Tables: distinguishing per-column IsVisible from IsRequestOutput which is returned to user. Clarified clipping rules/requirements. Comments.

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This commit is contained in:
ocornut
2020-12-03 16:29:08 +01:00
parent f70bf69e3b
commit 984c4cb5f8
4 changed files with 124 additions and 66 deletions
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34
imgui_demo.cpp
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@ -3518,9 +3518,7 @@ static void ShowDemoWindowTables()
ImGui::TableNextRow();
for (int column = 0; column < 3; column++)
{
if (!ImGui::TableSetColumnIndex(column))
continue;
ImGui::TableSetColumnIndex(column);
char buf[32];
sprintf(buf, "Hello %d,%d", column, row);
if (contents_type == CT_Text)
@ -3861,20 +3859,22 @@ static void ShowDemoWindowTables()
{
ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
ImGui::TableSetupColumn("Line #", ImGuiTableColumnFlags_NoHide); // Make the first column not hideable to match our use of TableSetupScrollFreeze()
ImGui::TableSetupColumn("One", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Two", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Three", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Four", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Five", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("Six", ImGuiTableColumnFlags_None);
ImGui::TableSetupColumn("One");
ImGui::TableSetupColumn("Two");
ImGui::TableSetupColumn("Three");
ImGui::TableSetupColumn("Four");
ImGui::TableSetupColumn("Five");
ImGui::TableSetupColumn("Six");
ImGui::TableHeadersRow();
for (int row = 0; row < 20; row++)
{
ImGui::TableNextRow();
for (int column = 0; column < 7; column++)
{
// Both TableNextColumn() and TableSetColumnIndex() return false when a column is not visible, which can be used for clipping.
if (!ImGui::TableSetColumnIndex(column))
// Both TableNextColumn() and TableSetColumnIndex() return false when a column is not visible.
// Because here we know that A) all our columns are contributing the same to row height and B) column 0 is always visible,
// we only always submit this one column.
if (!ImGui::TableSetColumnIndex(column) && column > 0)
continue;
if (column == 0)
ImGui::Text("Line %d", row);
@ -4809,8 +4809,8 @@ static void ShowDemoWindowTables()
}
}
ImGui::TableNextColumn();
ImGui::TextUnformatted(item->Name);
if (ImGui::TableNextColumn())
ImGui::TextUnformatted(item->Name);
// Here we demonstrate marking our data set as needing to be sorted again if we modified a quantity,
// and we are currently sorting on the column showing the Quantity.
@ -4825,8 +4825,8 @@ static void ShowDemoWindowTables()
if (sorts_specs_using_quantity && ImGui::IsItemDeactivated()) { items_need_sort = true; }
}
ImGui::TableNextColumn();
ImGui::Text("%d", item->Quantity);
if (ImGui::TableNextColumn())
ImGui::Text("%d", item->Quantity);
ImGui::TableNextColumn();
if (show_wrapped_text)
@ -4834,8 +4834,8 @@ static void ShowDemoWindowTables()
else
ImGui::Text("Lorem ipsum dolor sit amet");
ImGui::TableNextColumn();
ImGui::Text("1234");
if (ImGui::TableNextColumn())
ImGui::Text("1234");
ImGui::PopID();
}