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BeginPopupContextItem() now supports a NULL string identifier and uses the last item ID if available. For interactive items (that have an ID) this works! For non interactive items we assert.

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omar
2017-10-16 23:36:34 +02:00
parent c76f014292
commit 1a35766356
3 changed files with 23 additions and 13 deletions
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25
imgui.cpp
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@ -3697,38 +3697,43 @@ void ImGui::EndPopup()
PopStyleVar();
}
// This is a helper to handle the most simple case of associating one named popup to one given widget.
// This is a helper to handle the simplest case of associating one named popup to one given widget.
// 1. If you have many possible popups (for different "instances" of a same widget, or for wholly different widgets), you may be better off handling
// this yourself so you can store data relative to the widget that opened the popup instead of choosing different popup identifiers.
// 2. If you want right-clicking on the same item to reopen the popup at new location, use the same code replacing IsItemHovered() with IsItemRectHovered()
// and passing true to the OpenPopupEx().
// Because: hovering an item in a window below the popup won't normally trigger is hovering behavior/coloring. The pattern of ignoring the fact that
// the item can be interacted with (because it is blocked by the active popup) may useful in some situation when e.g. large canvas as one item, content of menu
// driven by click position.
// This is because hovering an item in a window below the popup won't work. IsItemRectHovered() skips this test.
// The pattern of ignoring the fact that the item can be interacted with (because it is blocked by the active popup) may useful in some situation
// when e.g. large canvas where the content of menu driven by click position.
bool ImGui::BeginPopupContextItem(const char* str_id, int mouse_button)
{
ImGuiWindow* window = GImGui->CurrentWindow;
ImGuiID id = str_id ? window->GetID(str_id) : window->DC.LastItemId; // If user hasn't passed an ID, we can use the LastItemID. Using LastItemID as a Popup ID won't conflict!
IM_ASSERT(id != 0); // However, you cannot pass a NULL str_id if the last item has no identifier (e.g. a Text() item)
if (IsItemHovered() && IsMouseClicked(mouse_button))
OpenPopupEx(GImGui->CurrentWindow->GetID(str_id), false);
return BeginPopup(str_id);
OpenPopupEx(id, false);
return BeginPopupEx(id, 0);
}
bool ImGui::BeginPopupContextWindow(const char* str_id, int mouse_button, bool also_over_items)
{
if (!str_id)
str_id = "window_context";
ImGuiID id = GImGui->CurrentWindow->GetID(str_id);
if (IsWindowRectHovered() && IsMouseClicked(mouse_button))
if (also_over_items || !IsAnyItemHovered())
OpenPopupEx(GImGui->CurrentWindow->GetID(str_id), true);
return BeginPopup(str_id);
OpenPopupEx(id, true);
return BeginPopupEx(id, 0);
}
bool ImGui::BeginPopupContextVoid(const char* str_id, int mouse_button)
{
if (!str_id)
str_id = "void_context";
ImGuiID id = GImGui->CurrentWindow->GetID(str_id);
if (!IsAnyWindowHovered() && IsMouseClicked(mouse_button))
OpenPopupEx(GImGui->CurrentWindow->GetID(str_id), true);
return BeginPopup(str_id);
OpenPopupEx(id, true);
return BeginPopupEx(id, 0);
}
static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, bool border, ImGuiWindowFlags extra_flags)