ListBoxes with the same label concatenate all of their items under the first listbox's scroll #3964
Description
Version/Branch of Dear ImGui:
Version: 1.82
Branch: v1.82
Back-end/Renderer/Compiler/OS
Back-ends: example_glfw_opengl3
Compiler: VS 2019
Operating System: Windows 10
My Issue/Question:
When creating several listboxes with the same label, all the elements (including the selection) appears on the first ListBox. For example, in imgui_demo.cpp, line 709:
const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
static int item_current = 1;
ImGui::ListBox("listbox", &item_current, items, IM_ARRAYSIZE(items), 4);just creating a couple of listboxes more:
static int item_current1 = 1;
static int item_current2 = 1;
ImGui::ListBox("listbox", &item_current1, items, IM_ARRAYSIZE(items), 4);
ImGui::ListBox("listbox", &item_current2, items, IM_ARRAYSIZE(items), 4);results in the provided screenshot (the first listbox has the 27 items, and the other two are empty). Using different item lists does not change the result.
Screenshots/Video
Standalone, minimal, complete and verifiable example: (see #2261)
Just replace lines 707-715 in imgui_demo.cpp with:
{
// Using the _simplified_ one-liner ListBox() api here
// See "List boxes" section for examples of how to use the more flexible BeginListBox()/EndListBox() api.
const char* items[] = { "Apple", "Banana", "Cherry", "Kiwi", "Mango", "Orange", "Pineapple", "Strawberry", "Watermelon" };
static int item_current = 1;
ImGui::ListBox("listbox", &item_current, items, IM_ARRAYSIZE(items), 4);
static int item_current1 = 1;
static int item_current2 = 1;
ImGui::ListBox("listbox", &item_current1, items, IM_ARRAYSIZE(items), 4);
ImGui::ListBox("listbox", &item_current2, items, IM_ARRAYSIZE(items), 4);
ImGui::SameLine(); HelpMarker(
"Using the simplified one-liner ListBox API here.\nRefer to the \"List boxes\" section below for an explanation of how to use the more flexible and general BeginListBox/EndListBox API.");
}