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Tables: Clarify internal calculations of row height so that TableGetCellRect() include expected paddings. Add demo code. Comments.

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Remove misleading commented-out flags for now.
This commit is contained in:
omar
2020-01-03 00:31:06 +01:00
committed by ocornut
parent 325b4c69ba
commit 416e9bb38d
3 changed files with 33 additions and 12 deletions
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21
imgui_demo.cpp
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@@ -3842,6 +3842,27 @@ static void ShowDemoWindowTables()
ImGui::TreePop();
}
if (open_action != -1)
ImGui::SetNextItemOpen(open_action != 0);
if (ImGui::TreeNode("Row height"))
{
HelpMarker("You can pass a 'min_row_height' to TableNextRow().\n\nRows are padded with 'style.CellPadding.y' on top and bottom, so effectively the minimum row height will always be >= 'style.CellPadding.y * 2.0f'.\n\nWe cannot honor a _maximum_ row height as that would requires a unique clipping rectangle per row.");
if (ImGui::BeginTable("##2ways", 2, ImGuiTableFlags_Borders))
{
float min_row_height = ImGui::GetFontSize() + ImGui::GetStyle().CellPadding.y * 2.0f;
ImGui::TableNextRow(ImGuiTableRowFlags_None, min_row_height);
ImGui::Text("min_row_height = %.2f", min_row_height);
for (int row = 0; row < 10; row++)
{
min_row_height = (float)(int)(ImGui::GetFontSize() * 0.30f * row);
ImGui::TableNextRow(ImGuiTableRowFlags_None, min_row_height);
ImGui::Text("min_row_height = %.2f", min_row_height);
}
ImGui::EndTable();
}
ImGui::TreePop();
}
static const char* template_items_names[] =
{
"Banana", "Apple", "Cherry", "Watermelon", "Grapefruit", "Strawberry", "Mango",