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Drags, Sliders: store initial value on activation, as a convenience for some mods. (#8223)

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ocornut 2024-12-12 18:48:42 +01:00
parent 4ad5496474
commit 8237ab450e
3 changed files with 10 additions and 0 deletions
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1
imgui.cpp
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@ -3927,6 +3927,7 @@ ImGuiContext::ImGuiContext(ImFontAtlas* shared_font_atlas)
ActiveIdPreviousFrameIsAlive = false;
ActiveIdPreviousFrameHasBeenEditedBefore = false;
ActiveIdPreviousFrameWindow = NULL;
memset(&ActiveIdValueOnActivation, 0, sizeof(ActiveIdValueOnActivation));
LastActiveId = 0;
LastActiveIdTimer = 0.0f;

1
imgui_internal.h
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@ -2109,6 +2109,7 @@ struct ImGuiContext
bool ActiveIdPreviousFrameIsAlive;
bool ActiveIdPreviousFrameHasBeenEditedBefore;
ImGuiWindow* ActiveIdPreviousFrameWindow;
ImGuiDataTypeStorage ActiveIdValueOnActivation; // Backup of initial value at the time of activation. ONLY SET BY SPECIFIC WIDGETS: DragXXX and SliderXXX.
ImGuiID LastActiveId; // Store the last non-zero ActiveId, useful for animation.
float LastActiveIdTimer; // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.

8
imgui_widgets.cpp
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@ -2632,6 +2632,10 @@ bool ImGui::DragScalar(const char* label, ImGuiDataType data_type, void* p_data,
temp_input_is_active = true;
}
// Store initial value (not used by main lib but available as a convenience but some mods e.g. to revert)
if (make_active)
memcpy(&g.ActiveIdValueOnActivation, p_data, DataTypeGetInfo(data_type)->Size);
if (make_active && !temp_input_is_active)
{
SetActiveID(id, window);
@ -3222,6 +3226,10 @@ bool ImGui::SliderScalar(const char* label, ImGuiDataType data_type, void* p_dat
if ((clicked && g.IO.KeyCtrl) || (g.NavActivateId == id && (g.NavActivateFlags & ImGuiActivateFlags_PreferInput)))
temp_input_is_active = true;
// Store initial value (not used by main lib but available as a convenience but some mods e.g. to revert)
if (make_active)
memcpy(&g.ActiveIdValueOnActivation, p_data, DataTypeGetInfo(data_type)->Size);
if (make_active && !temp_input_is_active)
{
SetActiveID(id, window);