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Internals: Checkbox: Added undocumented mixed/indeterminate/tristate support via ImGuiItemFlags_MixedValue. (#2644)

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This commit is contained in:
omar 2019-06-30 12:03:09 +02:00
parent a89f05a10e
commit 2a3517a399
3 changed files with 11 additions and 3 deletions
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2
docs/TODO.txt
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@ -65,7 +65,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
- widgets: start exposing PushItemFlag() and ImGuiItemFlags
- widgets: alignment options in style (e.g. center Selectable, Right-Align within Button, etc.) #1260
- widgets: activate by identifier (trigger button, focus given id)
- widgets: a way to represent "mixed" values, so e.g. all values replaced with **, including check-boxes, colors, etc. with support for multi-components widgets (e.g. SliderFloat3, make only "Y" mixed)
- widgets: a way to represent "mixed" values, so e.g. all values replaced with *, including check-boxes, colors, etc. with support for multi-components widgets (e.g. SliderFloat3, make only "Y" mixed) (#2644)
- widgets: selectable: generic BeginSelectable()/EndSelectable() mechanism.
- widgets: selectable: a way to visualize partial/mixed selection (e.g. parent tree node has children with mixed selection)
- widgets: checkbox: checkbox with custom glyph inside frame.

1
imgui_internal.h
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@ -384,6 +384,7 @@ enum ImGuiItemFlags_
ImGuiItemFlags_NoNav = 1 << 3, // false
ImGuiItemFlags_NoNavDefaultFocus = 1 << 4, // false
ImGuiItemFlags_SelectableDontClosePopup = 1 << 5, // false // MenuItem/Selectable() automatically closes current Popup window
ImGuiItemFlags_MixedValue = 1 << 6, // false // [BETA] Represent a mixed/indeterminate value, generally multi-selection where values differ. Currently only supported by Checkbox() (later should support all sorts of widgets)
ImGuiItemFlags_Default_ = 0
};

11
imgui_widgets.cpp
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@ -1001,10 +1001,17 @@ bool ImGui::Checkbox(const char* label, bool* v)
const ImRect check_bb(pos, pos + ImVec2(square_sz, square_sz));
RenderNavHighlight(total_bb, id);
RenderFrame(check_bb.Min, check_bb.Max, GetColorU32((held && hovered) ? ImGuiCol_FrameBgActive : hovered ? ImGuiCol_FrameBgHovered : ImGuiCol_FrameBg), true, style.FrameRounding);
if (*v)
ImU32 check_col = GetColorU32(ImGuiCol_CheckMark);
if (window->DC.ItemFlags & ImGuiItemFlags_MixedValue)
{
// Undocumented tristate/mixed/indeterminate checkbox (#2644)
ImVec2 pad(ImMax(1.0f, (float)(int)(square_sz / 3.6f)), ImMax(1.0f, (float)(int)(square_sz / 3.6f)));
window->DrawList->AddRectFilled(check_bb.Min + pad, check_bb.Max - pad, check_col, style.FrameRounding);
}
else if (*v)
{
const float pad = ImMax(1.0f, (float)(int)(square_sz / 6.0f));
RenderCheckMark(check_bb.Min + ImVec2(pad, pad), GetColorU32(ImGuiCol_CheckMark), square_sz - pad*2.0f);
RenderCheckMark(check_bb.Min + ImVec2(pad, pad), check_col, square_sz - pad*2.0f);
}
if (g.LogEnabled)