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Internals, CollapsingHeader, TabItem: Standardized using a #CLOSE id prefix for TabItem and ColllapsingHeader (same as window)

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ocornut 2020-09-22 15:49:47 +02:00
parent 27d0c3afa9
commit 29836412e1
3 changed files with 18 additions and 2 deletions
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14
imgui.cpp
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@ -6742,6 +6742,20 @@ void ImGui::PushOverrideID(ImGuiID id)
window->IDStack.push_back(id);
}
// Helper to avoid a common series of PushOverrideID -> GetID() -> PopID() call
// (note that when using this pattern, TestEngine's "Stack Tool" will tend to not display the intermediate stack level.
// for that to work we would need to do PushOverrideID() -> ItemAdd() -> PopID() which would alter widget code a little more)
ImGuiID ImGui::GetIDWithSeed(const char* str, const char* str_end, ImGuiID seed)
{
ImGuiID id = ImHashStr(str, str_end ? (str_end - str) : 0, seed);
ImGui::KeepAliveID(id);
#ifdef IMGUI_ENABLE_TEST_ENGINE
ImGuiContext& g = *GImGui;
IMGUI_TEST_ENGINE_ID_INFO2(id, ImGuiDataType_String, str, str_end);
#endif
return id;
}
void ImGui::PopID()
{
ImGuiWindow* window = GImGui->CurrentWindow;

1
imgui_internal.h
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@ -1847,6 +1847,7 @@ namespace ImGui
IMGUI_API void KeepAliveID(ImGuiID id);
IMGUI_API void MarkItemEdited(ImGuiID id); // Mark data associated to given item as "edited", used by IsItemDeactivatedAfterEdit() function.
IMGUI_API void PushOverrideID(ImGuiID id); // Push given value as-is at the top of the ID stack (whereas PushID combines old and new hashes)
IMGUI_API ImGuiID GetIDWithSeed(const char* str_id_begin, const char* str_id_end, ImGuiID seed);
// Basic Helpers for widget code
IMGUI_API void ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);

5
imgui_widgets.cpp
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@ -5898,7 +5898,8 @@ bool ImGui::CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags
float button_size = g.FontSize;
float button_x = ImMax(window->DC.LastItemRect.Min.x, window->DC.LastItemRect.Max.x - g.Style.FramePadding.x * 2.0f - button_size);
float button_y = window->DC.LastItemRect.Min.y;
if (CloseButton(window->GetID((void*)((intptr_t)id + 1)), ImVec2(button_x, button_y)))
ImGuiID close_button_id = GetIDWithSeed("#CLOSE", NULL, id);
if (CloseButton(close_button_id, ImVec2(button_x, button_y)))
*p_open = false;
last_item_backup.Restore();
}
@ -7539,7 +7540,7 @@ bool ImGui::TabItemEx(ImGuiTabBar* tab_bar, const char* label, bool* p_open,
flags |= ImGuiTabItemFlags_NoCloseWithMiddleMouseButton;
// Render tab label, process close button
const ImGuiID close_button_id = p_open ? window->GetID((void*)((intptr_t)id + 1)) : 0;
const ImGuiID close_button_id = p_open ? GetIDWithSeed("#CLOSE", NULL, id) : 0;
bool just_closed = TabItemLabelAndCloseButton(display_draw_list, bb, flags, tab_bar->FramePadding, label, id, close_button_id, tab_contents_visible);
if (just_closed && p_open != NULL)
{