mirror/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2024-11-27 16:29:02 +08:00
Code Issues Actions 3 Packages Projects Releases Wiki Activity

Combo: display popup above if there's isn't enough space below / or select largest side (#505)

Browse Source
This commit is contained in:
ocornut 2016-03-25 23:36:43 +01:00
parent 7c9fa59329
commit d6750c87c2
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
imgui.cpp
View File

@ -8093,8 +8093,15 @@ bool ImGui::Combo(const char* label, int* current_item, bool (*items_getter)(voi
height_in_items = 7;
float popup_height = (label_size.y + style.ItemSpacing.y) * ImMin(items_count, height_in_items) + (style.FramePadding.y * 3);
ImRect popup_rect(ImVec2(frame_bb.Min.x, frame_bb.Max.y), ImVec2(frame_bb.Max.x, frame_bb.Max.y + popup_height));
popup_rect.Max.y = ImMin(popup_rect.Max.y, g.IO.DisplaySize.y - style.DisplaySafeAreaPadding.y); // Adhoc height limit for Combo. Ideally should be handled in Begin() along with other popups size, we want to have the possibility of moving the popup above as well.
float popup_y1 = frame_bb.Max.y;
float popup_y2 = ImClamp(popup_y1 + popup_height, popup_y1, g.IO.DisplaySize.y - style.DisplaySafeAreaPadding.y);
if ((popup_y2 - popup_y1) < ImMin(popup_height, frame_bb.Min.y - style.DisplaySafeAreaPadding.y))
{
// Position our combo ABOVE because there's more space to fit! (FIXME: Handle in Begin() or use a shared helper. We have similar code in Begin() for popup placement)
popup_y1 = ImClamp(frame_bb.Min.y - popup_height, style.DisplaySafeAreaPadding.y, frame_bb.Min.y);
popup_y2 = frame_bb.Min.y;
}
ImRect popup_rect(ImVec2(frame_bb.Min.x, popup_y1), ImVec2(frame_bb.Max.x, popup_y2));
ImGui::SetNextWindowPos(popup_rect.Min);
ImGui::SetNextWindowSize(popup_rect.GetSize());
ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, style.FramePadding);