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Internals: Nav: PushFocusScope, PopFocusScope, GetFocusScopeID() helpers

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This commit is contained in:
omar 2020-01-14 20:34:26 +01:00
parent 2ebe08be40
commit f6d6880a61
2 changed files with 21 additions and 0 deletions
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16
imgui.cpp
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@ -6909,6 +6909,22 @@ void ImGui::ActivateItem(ImGuiID id)
g.NavNextActivateId = id;
}
void ImGui::PushFocusScope(ImGuiID id)
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
window->IDStack.push_back(window->DC.NavFocusScopeIdCurrent);
window->DC.NavFocusScopeIdCurrent = id;
}
void ImGui::PopFocusScope()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
window->DC.NavFocusScopeIdCurrent = window->IDStack.back();
window->IDStack.pop_back();
}
void ImGui::SetKeyboardFocusHere(int offset)
{
IM_ASSERT(offset >= -1); // -1 is allowed but not below

5
imgui_internal.h
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@ -1703,6 +1703,11 @@ namespace ImGui
IMGUI_API void SetNavID(ImGuiID id, int nav_layer, int focus_scope_id);
IMGUI_API void SetNavIDWithRectRel(ImGuiID id, int nav_layer, int focus_scope_id, const ImRect& rect_rel);
// Focus scope (WIP)
IMGUI_API void PushFocusScope(ImGuiID id); // Note: this is storing in same stack as IDStack, so Push/Pop mismatch will be reported there.
IMGUI_API void PopFocusScope();
inline ImGuiID GetFocusScopeID() { ImGuiContext& g = *GImGui; return g.NavFocusScopeId; }
// Inputs
// FIXME: Eventually we should aim to move e.g. IsActiveIdUsingKey() into IsKeyXXX functions.
inline bool IsActiveIdUsingNavDir(ImGuiDir dir) { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavDirMask & (1 << dir)) != 0; }