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Nav: Added debug logging, extract bits of code into NavUpdateInitResult().

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This commit is contained in:
ocornut 2020-09-01 18:33:51 +02:00
parent a456d17dfc
commit f4d062fa11
2 changed files with 27 additions and 13 deletions
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38
imgui.cpp
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@ -841,6 +841,7 @@ static void NavUpdate();
static void NavUpdateWindowing();
static void NavUpdateWindowingOverlay();
static void NavUpdateMoveResult();
static void NavUpdateInitResult();
static float NavUpdatePageUpPageDown();
static inline void NavUpdateAnyRequestFlag();
static void NavEndFrame();
@ -8444,7 +8445,7 @@ void ImGui::NavInitWindow(ImGuiWindow* window, bool force_reinit)
if (!(window->Flags & ImGuiWindowFlags_NoNavInputs))
if (!(window->Flags & ImGuiWindowFlags_ChildWindow) || (window->Flags & ImGuiWindowFlags_Popup) || (window->NavLastIds[0] == 0) || force_reinit)
init_for_nav = true;
//IMGUI_DEBUG_LOG("[Nav] NavInitWindow() init_for_nav=%d, window=\"%s\", layer=%d\n", init_for_nav, window->Name, g.NavLayer);
IMGUI_DEBUG_LOG("[nav] NavInitRequest: from NavInitWindow(), init_for_nav=%d, window=\"%s\", layer=%d\n", init_for_nav, window->Name, g.NavLayer);
if (init_for_nav)
{
SetNavID(0, g.NavLayer, 0);
@ -8566,17 +8567,8 @@ static void ImGui::NavUpdate()
io.NavInputsDownDuration[i] = (io.NavInputs[i] > 0.0f) ? (io.NavInputsDownDuration[i] < 0.0f ? 0.0f : io.NavInputsDownDuration[i] + io.DeltaTime) : -1.0f;
// Process navigation init request (select first/default focus)
// In very rare cases g.NavWindow may be null (e.g. clearing focus after requesting an init request, which does happen when releasing Alt while clicking on void)
if (g.NavInitResultId != 0 && (!g.NavDisableHighlight || g.NavInitRequestFromMove) && g.NavWindow)
{
// Apply result from previous navigation init request (will typically select the first item, unless SetItemDefaultFocus() has been called)
//IMGUI_DEBUG_LOG("[Nav] Apply NavInitRequest result: 0x%08X Layer %d in \"%s\"\n", g.NavInitResultId, g.NavLayer, g.NavWindow->Name);
if (g.NavInitRequestFromMove)
SetNavIDWithRectRel(g.NavInitResultId, g.NavLayer, 0, g.NavInitResultRectRel);
else
SetNavID(g.NavInitResultId, g.NavLayer, 0);
g.NavWindow->NavRectRel[g.NavLayer] = g.NavInitResultRectRel;
}
if (g.NavInitResultId != 0 && (!g.NavDisableHighlight || g.NavInitRequestFromMove))
NavUpdateInitResult();
g.NavInitRequest = false;
g.NavInitRequestFromMove = false;
g.NavInitResultId = 0;
@ -8629,6 +8621,7 @@ static void ImGui::NavUpdate()
// Process NavCancel input (to close a popup, get back to parent, clear focus)
if (IsNavInputTest(ImGuiNavInput_Cancel, ImGuiInputReadMode_Pressed))
{
IMGUI_DEBUG_LOG_NAV("[nav] ImGuiNavInput_Cancel\n");
if (g.ActiveId != 0)
{
if (!IsActiveIdUsingNavInput(ImGuiNavInput_Cancel))
@ -8714,6 +8707,7 @@ static void ImGui::NavUpdate()
// (Preserve g.NavMoveRequestFlags, g.NavMoveClipDir which were set by the NavMoveRequestForward() function)
IM_ASSERT(g.NavMoveDir != ImGuiDir_None && g.NavMoveClipDir != ImGuiDir_None);
IM_ASSERT(g.NavMoveRequestForward == ImGuiNavForward_ForwardQueued);
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequestForward %d\n", g.NavMoveDir);
g.NavMoveRequestForward = ImGuiNavForward_ForwardActive;
}
@ -8732,7 +8726,7 @@ static void ImGui::NavUpdate()
}
if (g.NavMoveRequest && g.NavId == 0)
{
//IMGUI_DEBUG_LOG("[Nav] NavInitRequest from move, window \"%s\", layer=%d\n", g.NavWindow->Name, g.NavLayer);
IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: from move, window \"%s\", layer=%d\n", g.NavWindow->Name, g.NavLayer);
g.NavInitRequest = g.NavInitRequestFromMove = true;
// Reassigning with same value, we're being explicit here.
g.NavInitResultId = 0; // -V1048
@ -8777,6 +8771,7 @@ static void ImGui::NavUpdate()
ImRect window_rect_rel(window->InnerRect.Min - window->Pos - ImVec2(1, 1), window->InnerRect.Max - window->Pos + ImVec2(1, 1));
if (!window_rect_rel.Contains(window->NavRectRel[g.NavLayer]))
{
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: clamp NavRectRel\n");
float pad = window->CalcFontSize() * 0.5f;
window_rect_rel.Expand(ImVec2(-ImMin(window_rect_rel.GetWidth(), pad), -ImMin(window_rect_rel.GetHeight(), pad))); // Terrible approximation for the intent of starting navigation from first fully visible item
window->NavRectRel[g.NavLayer].ClipWithFull(window_rect_rel);
@ -8803,6 +8798,22 @@ static void ImGui::NavUpdate()
#endif
}
static void ImGui::NavUpdateInitResult()
{
// In very rare cases g.NavWindow may be null (e.g. clearing focus after requesting an init request, which does happen when releasing Alt while clicking on void)
ImGuiContext& g = *GImGui;
if (!g.NavWindow)
return;
// Apply result from previous navigation init request (will typically select the first item, unless SetItemDefaultFocus() has been called)
IMGUI_DEBUG_LOG_NAV("[nav] NavInitRequest: result NavID 0x%08X in Layer %d Window \"%s\"\n", g.NavInitResultId, g.NavLayer, g.NavWindow->Name);
if (g.NavInitRequestFromMove)
SetNavIDWithRectRel(g.NavInitResultId, g.NavLayer, 0, g.NavInitResultRectRel);
else
SetNavID(g.NavInitResultId, g.NavLayer, 0);
g.NavWindow->NavRectRel[g.NavLayer] = g.NavInitResultRectRel;
}
// Apply result from previous frame navigation directional move request
static void ImGui::NavUpdateMoveResult()
{
@ -8862,6 +8873,7 @@ static void ImGui::NavUpdateMoveResult()
g.NavJustMovedToFocusScopeId = result->FocusScopeId;
g.NavJustMovedToKeyMods = g.NavMoveRequestKeyMods;
}
IMGUI_DEBUG_LOG_NAV("[nav] NavMoveRequest: result NavID 0x%08X in Layer %d Window \"%s\"\n", result->ID, g.NavLayer, g.NavWindow->Name);
SetNavIDWithRectRel(result->ID, g.NavLayer, result->FocusScopeId, result->RectRel);
}

2
imgui_internal.h
View File

@ -163,7 +163,9 @@ namespace ImStb
// Debug Logging for selected systems. Remove the '((void)0) //' to enable.
//#define IMGUI_DEBUG_LOG_POPUP IMGUI_DEBUG_LOG // Enable log
//#define IMGUI_DEBUG_LOG_NAV IMGUI_DEBUG_LOG // Enable log
#define IMGUI_DEBUG_LOG_POPUP(...) ((void)0) // Disable log
#define IMGUI_DEBUG_LOG_NAV(...) ((void)0) // Disable log
// Static Asserts
#if (__cplusplus >= 201100)