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Fix popup and tooltip positioning when not fitting in the screen.

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Rokas Kupstys 2020-05-13 14:56:13 +03:00 committed by ocornut
parent 825f699bde
commit b7b08f52a4
1 changed files with 12 additions and 1 deletions
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13
imgui.cpp
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@ -8016,11 +8016,22 @@ ImVec2 ImGui::FindBestWindowPosForPopupEx(const ImVec2& ref_pos, const ImVec2& s
continue;
float avail_w = (dir == ImGuiDir_Left ? r_avoid.Min.x : r_outer.Max.x) - (dir == ImGuiDir_Right ? r_avoid.Max.x : r_outer.Min.x);
float avail_h = (dir == ImGuiDir_Up ? r_avoid.Min.y : r_outer.Max.y) - (dir == ImGuiDir_Down ? r_avoid.Max.y : r_outer.Min.y);
if (avail_w < size.x || avail_h < size.y)
// There is no point in switching left/right sides when popup height exceeds available height or top/bottom
// sides when popup width exceeds available width.
if (avail_h < size.y && (dir == ImGuiDir_Up || dir == ImGuiDir_Down))
continue;
else if (avail_w < size.x && (dir == ImGuiDir_Left || dir == ImGuiDir_Right))
continue;
ImVec2 pos;
pos.x = (dir == ImGuiDir_Left) ? r_avoid.Min.x - size.x : (dir == ImGuiDir_Right) ? r_avoid.Max.x : base_pos_clamped.x;
pos.y = (dir == ImGuiDir_Up) ? r_avoid.Min.y - size.y : (dir == ImGuiDir_Down) ? r_avoid.Max.y : base_pos_clamped.y;
// Clamp top-left (or top-right for RTL languages in the future) corner of popup to remain visible.
pos.x = ImMax(pos.x, r_outer.Min.x);
pos.y = ImMax(pos.y, r_outer.Min.y);
*last_dir = dir;
return pos;
}