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Demo: tweak TreeNode demo.

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ocornut 2024-04-24 18:20:02 +02:00
parent da18fcb7ae
commit baaaaea9e9
1 changed files with 6 additions and 1 deletions
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7
imgui_demo.cpp
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@ -901,13 +901,18 @@ static void ShowDemoWindowWidgets()
if (i == 0)
ImGui::SetNextItemOpen(true, ImGuiCond_Once);
if (ImGui::TreeNode((void*)(intptr_t)i, "Child %d", i))
// Here we use PushID() to generate a unique base ID, and then the "" used as TreeNode id won't conflict.
// An alternative to using 'PushID() + TreeNode("", ...)' to generate a unique ID is to use 'TreeNode((void*)(intptr_t)i, ...)',
// aka generate a dummy pointer-sized value to be hashed. The demo below uses that technique. Both are fine.
ImGui::PushID(i);
if (ImGui::TreeNode("", "Child %d", i))
{
ImGui::Text("blah blah");
ImGui::SameLine();
if (ImGui::SmallButton("button")) {}
ImGui::TreePop();
}
ImGui::PopID();
}
ImGui::TreePop();
}