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Nav: Comments, added enum to clarify NavForward code. (#787)
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parent
c8b9b2c6bd
commit
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19
imgui.cpp
19
imgui.cpp
@ -2896,12 +2896,12 @@ static void ImGui::NavUpdate()
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}
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// When a forwarded move request failed, we restore the highlight that we disabled during the forward frame
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if (g.NavMoveRequestForwardStep == 2)
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if (g.NavMoveRequestForward == ImGuiNavForward_ForwardResult)
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{
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IM_ASSERT(g.NavMoveRequest);
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if (g.NavMoveResultId == 0)
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g.NavDisableHighlight = false;
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g.NavMoveRequestForwardStep = 0;
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g.NavMoveRequestForward = ImGuiNavForward_None;
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}
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// Apply application mouse position movement, after we had a chance to process move request result.
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@ -2993,7 +2993,7 @@ static void ImGui::NavUpdate()
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// Initiate directional inputs request
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const int allowed_dir_flags = (g.ActiveId == 0) ? ~0 : g.ActiveIdAllowNavDirFlags;
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if (g.NavMoveRequestForwardStep == 0)
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if (g.NavMoveRequestForward == ImGuiNavForward_None)
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{
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g.NavMoveDir = ImGuiDir_None;
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if (g.NavWindow && !g.NavWindowingTarget && allowed_dir_flags && !(g.NavWindow->Flags & ImGuiWindowFlags_NoNavInputs))
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@ -3006,9 +3006,10 @@ static void ImGui::NavUpdate()
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}
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else
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{
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// Forwarding previous request (which has been modified, e.g. wrap around menus rewrite the requests with a starting rectangle at the other side of the window)
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IM_ASSERT(g.NavMoveDir != ImGuiDir_None);
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IM_ASSERT(g.NavMoveRequestForwardStep == 1);
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g.NavMoveRequestForwardStep = 2;
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IM_ASSERT(g.NavMoveRequestForward == ImGuiNavForward_Forwarding);
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g.NavMoveRequestForward = ImGuiNavForward_ForwardResult;
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}
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if (g.NavMoveDir != ImGuiDir_None)
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@ -4821,9 +4822,9 @@ static void NavProcessMoveRequestWrapAround(ImGuiWindow* window)
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{
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ImGuiContext& g = *GImGui;
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if (g.NavMoveRequest && g.NavWindow == window && g.NavMoveResultId == 0)
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if ((g.NavMoveDir == ImGuiDir_Up || g.NavMoveDir == ImGuiDir_Down) && g.NavMoveRequestForwardStep == 0 && g.NavLayer == 0)
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if ((g.NavMoveDir == ImGuiDir_Up || g.NavMoveDir == ImGuiDir_Down) && g.NavMoveRequestForward == ImGuiNavForward_None && g.NavLayer == 0)
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{
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g.NavMoveRequestForwardStep = 1;
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g.NavMoveRequestForward = ImGuiNavForward_Forwarding;
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NavMoveRequestCancel();
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g.NavWindow->NavRectRel[0].Min.y = g.NavWindow->NavRectRel[0].Max.y = ((g.NavMoveDir == ImGuiDir_Up) ? ImMax(window->SizeFull.y, window->SizeContents.y) : 0.0f) - window->Scroll.y;
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}
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@ -10860,7 +10861,7 @@ void ImGui::EndMenuBar()
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ImGuiWindow* nav_earliest_child = g.NavWindow;
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while (nav_earliest_child->ParentWindow && (nav_earliest_child->ParentWindow->Flags & ImGuiWindowFlags_ChildMenu))
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nav_earliest_child = nav_earliest_child->ParentWindow;
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if (nav_earliest_child->ParentWindow == window && nav_earliest_child->DC.ParentLayoutType == ImGuiLayoutType_Horizontal && g.NavMoveRequestForwardStep == 0)
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if (nav_earliest_child->ParentWindow == window && nav_earliest_child->DC.ParentLayoutType == ImGuiLayoutType_Horizontal && g.NavMoveRequestForward == ImGuiNavForward_None)
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{
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// To do so we claim focus back, restore NavId and then process the movement request for yet another frame.
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// This involve a one-frame delay which isn't very problematic in this situation. We could remove it by scoring in advance for multiple window (probably not worth the hassle/cost)
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@ -10869,7 +10870,7 @@ void ImGui::EndMenuBar()
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SetNavIDAndMoveMouse(window->NavLastIds[1], 1, window->NavRectRel[1]);
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g.NavLayer = 1;
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g.NavDisableHighlight = true; // Hide highlight for the current frame so we don't see the intermediary selection.
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g.NavMoveRequestForwardStep = 1;
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g.NavMoveRequestForward = ImGuiNavForward_Forwarding;
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NavMoveRequestCancel();
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}
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}
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@ -292,6 +292,13 @@ enum ImGuiNavDirSourceFlags_
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ImGuiNavDirSourceFlags_PadLStick = 1 << 2
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};
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enum ImGuiNavForward
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{
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ImGuiNavForward_None,
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ImGuiNavForward_Forwarding,
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ImGuiNavForward_ForwardResult
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};
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// 2D axis aligned bounding-box
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// NB: we can't rely on ImVec2 math operators being available here
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struct IMGUI_API ImRect
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@ -610,11 +617,11 @@ struct ImGuiContext
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bool NavInitResultExplicit; // Whether the result was explicitly requested with SetItemDefaultFocus()
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bool NavMoveFromClampedRefRect; // Set by manual scrolling, if we scroll to a point where NavId isn't visible we reset navigation from visible items
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bool NavMoveRequest; // Move request for this frame
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int NavMoveRequestForwardStep; // 0: no forward, 1: forward request, 2: forward result (this is used to navigate sibling parent menus from a child menu)
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ImGuiNavForward NavMoveRequestForward; // No forward / Forwarding / ForwardResult (this is used to navigate sibling parent menus from a child menu)
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ImGuiDir NavMoveDir; // Direction of the move request (left/right/up/down)
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ImGuiDir NavMoveDirLast; // Direction of the previous move request
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ImGuiID NavMoveResultId; // Best move request candidate
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ImGuiID NavMoveResultParentId; //
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ImGuiID NavMoveResultParentId; // Best move request candidate window->IDStack.back() - to compare context
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float NavMoveResultDistBox; // Best move request candidate box distance to current NavId
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float NavMoveResultDistCenter; // Best move request candidate center distance to current NavId
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float NavMoveResultDistAxial;
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@ -729,7 +736,7 @@ struct ImGuiContext
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NavInitResultExplicit = false;
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NavMoveFromClampedRefRect = false;
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NavMoveRequest = false;
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NavMoveRequestForwardStep = 0;
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NavMoveRequestForward = ImGuiNavForward_None;
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NavMoveDir = NavMoveDirLast = ImGuiDir_None;
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NavMoveResultId = 0;
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NavMoveResultParentId = 0;
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