Button in the same line as a TreeWindow header

[Rush2k]

Hi,

I'm trying to put a button in the same line as the header of the tree window (eg code below), and I am having issues getting the button to activate reliably. By that I mean; it either needs a lot of clicks to trigger, or it only opens when the tree window is open.

Here's a minimal example code of what I'm doing:
ImGui::AlignTextToFramePadding();
bool treeopen = ImGui::TreeNode("TreeTest");
ImGui::SameLine();
if (ImGui::Button("+")) ImGui::OpenPopup("ElementList");
if (ImGui::IsItemHovered()) ImGui::SetTooltip("new element");
if (ImGui::BeginPopup("ElementList")) {
ImGui::MenuItem("element 1");
ImGui::EndPopup();
}
if (treeopen)
ImGui::TreePop();

I tried this instead:
bool treeopen = ImGui::TreeNodeEx("TreeTest", ImGuiButtonFlags_AllowItemOverlap);

But it actually made opening the tree harder through the arrow.

What's the preferred setup to make this work?

[ocornut]

This works for me:

ImGui::AlignTextToFramePadding();
bool treeopen = ImGui::TreeNodeEx("TreeTest", ImGuiTreeNodeFlags_AllowItemOverlap);
ImGui::SameLine();
if (ImGui::Button("+")) ImGui::OpenPopup("ElementList");
if (ImGui::IsItemHovered()) ImGui::SetTooltip("new element");
if (ImGui::BeginPopup("ElementList")) 
{
    ImGui::MenuItem("element 1");
    ImGui::MenuItem("element 2");
    ImGui::EndPopup();
}
if (treeopen)
{
    ImGui::Text("Tree contents");
    ImGui::TreePop();
}

You said:
"I tried this instead:
bool treeopen = ImGui::TreeNodeEx("TreeTest", ImGuiButtonFlags_AllowItemOverlap);"

I think you meant ImGuiTreeNodeFlags_AllowItemOverlap and NOT ImGuiButtonFlags_AllowItemOverlap here.

You may otherwise have another issue in your real app code where maybe the identifier of the + buttons are conflicting with each others (if you don't use PushID/PopID).

[Rush2k]

Thank you! It was a combination of ID issues and incorrect flags.