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PushDisabled(): added bool + clarify support for stacked disabled (#211)

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ocornut 2021-07-08 19:21:59 +02:00
parent 03ca38eda1
commit cc40ae2101
2 changed files with 21 additions and 16 deletions
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11
imgui.cpp
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@ -6592,24 +6592,27 @@ void ImGui::PopItemFlag()
}
// PushDisabled()/PopDisabled()
// - Those can be nested but this cannot be used to enable an already disabled section (a single PushDisabled(true) in the stack is enough to keep things disabled)
// - Those are not yet exposed in imgui.h because we are unsure of how to alter the style in a way that works for everyone.
// We may rework this. Hypothetically, a future styling system may set a flag which make widgets use different colors.
// - Feedback welcome at https://github.com/ocornut/imgui/issues/211
// - You may trivially implement your own variation of this if needed.
// Here we test (CurrentItemFlags & ImGuiItemFlags_Disabled) to allow nested PushDisabled() calls.
void ImGui::PushDisabled()
void ImGui::PushDisabled(bool disabled)
{
ImGuiContext& g = *GImGui;
if ((g.CurrentItemFlags & ImGuiItemFlags_Disabled) == 0)
bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
if (!was_disabled && disabled)
PushStyleVar(ImGuiStyleVar_Alpha, g.Style.Alpha * 0.6f);
PushItemFlag(ImGuiItemFlags_Disabled, true);
PushItemFlag(ImGuiItemFlags_Disabled, was_disabled || disabled);
}
void ImGui::PopDisabled()
{
ImGuiContext& g = *GImGui;
bool was_disabled = (g.CurrentItemFlags & ImGuiItemFlags_Disabled) != 0;
PopItemFlag();
if ((g.CurrentItemFlags & ImGuiItemFlags_Disabled) == 0)
if (was_disabled && (g.CurrentItemFlags & ImGuiItemFlags_Disabled) == 0)
PopStyleVar();
}