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Clarified usage of ListBoxHeader() before we rename those functions + fixed demo code that didn't honor it correctly. (#1783)

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This commit is contained in:
omar 2018-04-29 12:19:44 +02:00
parent f2e9dddeca
commit 429f48bb4f
2 changed files with 8 additions and 6 deletions
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4
imgui.h
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@ -407,9 +407,9 @@ namespace ImGui
IMGUI_API bool Selectable(const char* label, bool* p_selected, ImGuiSelectableFlags flags = 0, const ImVec2& size = ImVec2(0,0)); // "bool* p_selected" point to the selection state (read-write), as a convenient helper.
IMGUI_API bool ListBox(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items = -1);
IMGUI_API bool ListBox(const char* label, int* current_item, bool (*items_getter)(void* data, int idx, const char** out_text), void* data, int items_count, int height_in_items = -1);
IMGUI_API bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0,0)); // use if you want to reimplement ListBox() will custom data or interactions. make sure to call ListBoxFooter() afterwards.
IMGUI_API bool ListBoxHeader(const char* label, const ImVec2& size = ImVec2(0,0)); // use if you want to reimplement ListBox() will custom data or interactions. if the function return true, you can output elements then call ListBoxFooter() afterwards.
IMGUI_API bool ListBoxHeader(const char* label, int items_count, int height_in_items = -1); // "
IMGUI_API void ListBoxFooter(); // terminate the scrolling region
IMGUI_API void ListBoxFooter(); // terminate the scrolling region. only call ListBoxFooter() if ListBoxHeader() returned true!
// Widgets: Value() Helpers. Output single value in "name: value" format (tip: freely declare more in your code to handle your types. you can add functions to the ImGui namespace)
IMGUI_API void Value(const char* prefix, bool b);

10
imgui_demo.cpp
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@ -1299,10 +1299,12 @@ void ImGui::ShowDemoWindow(bool* p_open)
ImGui::Button("LEVERAGE\nBUZZWORD", size);
ImGui::SameLine();
ImGui::ListBoxHeader("List", size);
ImGui::Selectable("Selected", true);
ImGui::Selectable("Not Selected", false);
ImGui::ListBoxFooter();
if (ImGui::ListBoxHeader("List", size))
{
ImGui::Selectable("Selected", true);
ImGui::Selectable("Not Selected", false);
ImGui::ListBoxFooter();
}
ImGui::TreePop();
}