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Exposed BeginCombo() publicly.

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This commit is contained in:
omar
2017-12-10 18:08:59 +01:00
parent 080f61858f
commit e3e0326ea9
3 changed files with 26 additions and 24 deletions
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8
imgui.cpp
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@ -9166,7 +9166,7 @@ void ImGui::EndCombo()
EndPopup();
}
// Combo box function.
// Old API, prefer using BeginCombo() nowadays if you can.
bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(void*, int, const char**), void* data, int items_count, int popup_max_height_in_items)
{
ImGuiContext& g = *GImGui;
@ -9175,16 +9175,18 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
if (*current_item >= 0 && *current_item < items_count)
items_getter(data, *current_item, &preview_text);
// The old Combo() API exposed "popup_max_height_in_items", however the new more general BeginCombo() API doesn't, so we emulate it here.
if (popup_max_height_in_items != -1 && !g.SetNextWindowSizeConstraint)
{
float popup_max_height = CalcMaxPopupHeightFromItemCount(popup_max_height_in_items);
SetNextWindowSizeConstraints(ImVec2(0,0), ImVec2(FLT_MAX, popup_max_height));
}
if (!BeginCombo(label, preview_text, 0))
return false;
// Display items
// FIXME-OPT: Use clipper
// FIXME-OPT: Use clipper (if we can disable it on the appearing frame to make sure our call to SetScrollHere() is processed)
bool value_changed = false;
for (int i = 0; i < items_count; i++)
{
@ -9236,7 +9238,7 @@ static bool Items_SingleStringGetter(void* data, int idx, const char** out_text)
}
// Combo box helper allowing to pass an array of strings.
bool ImGui::Combo(const char* label, int* current_item, const char* const* items, int items_count, int height_in_items)
bool ImGui::Combo(const char* label, int* current_item, const char* const items[], int items_count, int height_in_items)
{
const bool value_changed = Combo(label, current_item, Items_ArrayGetter, (void*)items, items_count, height_in_items);
return value_changed;