Refactor: Internals: Moved Navigation functions in imgui.cpp in their own section. (part 7) (#2036, #787)
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219
imgui.cpp
219
imgui.cpp
@ -2703,44 +2703,6 @@ static ImGuiWindow* FindWindowNavFocusable(int i_start, int i_stop, int dir) //
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return NULL;
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}
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float ImGui::GetNavInputAmount(ImGuiNavInput n, ImGuiInputReadMode mode)
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{
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ImGuiContext& g = *GImGui;
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if (mode == ImGuiInputReadMode_Down)
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return g.IO.NavInputs[n]; // Instant, read analog input (0.0f..1.0f, as provided by user)
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const float t = g.IO.NavInputsDownDuration[n];
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if (t < 0.0f && mode == ImGuiInputReadMode_Released) // Return 1.0f when just released, no repeat, ignore analog input.
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return (g.IO.NavInputsDownDurationPrev[n] >= 0.0f ? 1.0f : 0.0f);
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if (t < 0.0f)
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return 0.0f;
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if (mode == ImGuiInputReadMode_Pressed) // Return 1.0f when just pressed, no repeat, ignore analog input.
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return (t == 0.0f) ? 1.0f : 0.0f;
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if (mode == ImGuiInputReadMode_Repeat)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 0.80f, g.IO.KeyRepeatRate * 0.80f);
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if (mode == ImGuiInputReadMode_RepeatSlow)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 1.00f, g.IO.KeyRepeatRate * 2.00f);
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if (mode == ImGuiInputReadMode_RepeatFast)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 0.80f, g.IO.KeyRepeatRate * 0.30f);
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return 0.0f;
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}
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ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInputReadMode mode, float slow_factor, float fast_factor)
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{
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ImVec2 delta(0.0f, 0.0f);
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if (dir_sources & ImGuiNavDirSourceFlags_Keyboard)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_KeyRight_, mode) - GetNavInputAmount(ImGuiNavInput_KeyLeft_, mode), GetNavInputAmount(ImGuiNavInput_KeyDown_, mode) - GetNavInputAmount(ImGuiNavInput_KeyUp_, mode));
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if (dir_sources & ImGuiNavDirSourceFlags_PadDPad)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_DpadRight, mode) - GetNavInputAmount(ImGuiNavInput_DpadLeft, mode), GetNavInputAmount(ImGuiNavInput_DpadDown, mode) - GetNavInputAmount(ImGuiNavInput_DpadUp, mode));
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if (dir_sources & ImGuiNavDirSourceFlags_PadLStick)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_LStickRight, mode) - GetNavInputAmount(ImGuiNavInput_LStickLeft, mode), GetNavInputAmount(ImGuiNavInput_LStickDown, mode) - GetNavInputAmount(ImGuiNavInput_LStickUp, mode));
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if (slow_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakSlow))
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delta *= slow_factor;
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if (fast_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakFast))
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delta *= fast_factor;
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return delta;
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}
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static void NavUpdateWindowingHighlightWindow(int focus_change_dir)
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{
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ImGuiContext& g = *GImGui;
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@ -2878,7 +2840,6 @@ static void ImGui::NavUpdateWindowing()
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ImGuiWindow* new_nav_window = g.NavWindow;
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while ((new_nav_window->DC.NavLayerActiveMask & (1 << 1)) == 0 && (new_nav_window->Flags & ImGuiWindowFlags_ChildWindow) != 0 && (new_nav_window->Flags & (ImGuiWindowFlags_Popup | ImGuiWindowFlags_ChildMenu)) == 0)
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new_nav_window = new_nav_window->ParentWindow;
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if (new_nav_window != g.NavWindow)
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{
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ImGuiWindow* old_nav_window = g.NavWindow;
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@ -2891,77 +2852,6 @@ static void ImGui::NavUpdateWindowing()
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}
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}
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// Window has already passed the IsWindowNavFocusable()
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static const char* GetFallbackWindowNameForWindowingList(ImGuiWindow* window)
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{
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if (window->Flags & ImGuiWindowFlags_Popup)
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return "(Popup)";
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if ((window->Flags & ImGuiWindowFlags_MenuBar) && strcmp(window->Name, "##MainMenuBar") == 0)
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return "(Main menu bar)";
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return "(Untitled)";
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}
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// Overlay displayed when using CTRL+TAB. Called by EndFrame().
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void ImGui::NavUpdateWindowingList()
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{
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ImGuiContext& g = *GImGui;
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IM_ASSERT(g.NavWindowingTarget != NULL);
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if (g.NavWindowingTimer < NAV_WINDOWING_LIST_APPEAR_DELAY)
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return;
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if (g.NavWindowingList == NULL)
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g.NavWindowingList = FindWindowByName("###NavWindowingList");
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SetNextWindowSizeConstraints(ImVec2(g.IO.DisplaySize.x * 0.20f, g.IO.DisplaySize.y * 0.20f), ImVec2(FLT_MAX, FLT_MAX));
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SetNextWindowPos(g.IO.DisplaySize * 0.5f, ImGuiCond_Always, ImVec2(0.5f, 0.5f));
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PushStyleVar(ImGuiStyleVar_WindowPadding, g.Style.WindowPadding * 2.0f);
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Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
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for (int n = g.Windows.Size - 1; n >= 0; n--)
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{
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ImGuiWindow* window = g.Windows[n];
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if (!IsWindowNavFocusable(window))
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continue;
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const char* label = window->Name;
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if (label == FindRenderedTextEnd(label))
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label = GetFallbackWindowNameForWindowingList(window);
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Selectable(label, g.NavWindowingTarget == window);
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}
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End();
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PopStyleVar();
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}
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// Scroll to keep newly navigated item fully into view
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// NB: We modify rect_rel by the amount we scrolled for, so it is immediately updated.
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static void NavScrollToBringItemIntoView(ImGuiWindow* window, const ImRect& item_rect)
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{
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ImRect window_rect(window->InnerMainRect.Min - ImVec2(1, 1), window->InnerMainRect.Max + ImVec2(1, 1));
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//g.OverlayDrawList.AddRect(window_rect.Min, window_rect.Max, IM_COL32_WHITE); // [DEBUG]
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if (window_rect.Contains(item_rect))
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return;
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ImGuiContext& g = *GImGui;
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if (window->ScrollbarX && item_rect.Min.x < window_rect.Min.x)
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{
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window->ScrollTarget.x = item_rect.Min.x - window->Pos.x + window->Scroll.x - g.Style.ItemSpacing.x;
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window->ScrollTargetCenterRatio.x = 0.0f;
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}
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else if (window->ScrollbarX && item_rect.Max.x >= window_rect.Max.x)
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{
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window->ScrollTarget.x = item_rect.Max.x - window->Pos.x + window->Scroll.x + g.Style.ItemSpacing.x;
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window->ScrollTargetCenterRatio.x = 1.0f;
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}
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if (item_rect.Min.y < window_rect.Min.y)
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{
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window->ScrollTarget.y = item_rect.Min.y - window->Pos.y + window->Scroll.y - g.Style.ItemSpacing.y;
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window->ScrollTargetCenterRatio.y = 0.0f;
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}
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else if (item_rect.Max.y >= window_rect.Max.y)
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{
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window->ScrollTarget.y = item_rect.Max.y - window->Pos.y + window->Scroll.y + g.Style.ItemSpacing.y;
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window->ScrollTargetCenterRatio.y = 1.0f;
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}
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}
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void ImGui::StartMouseMovingWindow(ImGuiWindow* window)
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{
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// Set ActiveId even if the _NoMove flag is set. Without it, dragging away from a window with _NoMove would activate hover on other windows.
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@ -7516,6 +7406,76 @@ void ImGui::NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags mov
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}
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}
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float ImGui::GetNavInputAmount(ImGuiNavInput n, ImGuiInputReadMode mode)
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{
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ImGuiContext& g = *GImGui;
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if (mode == ImGuiInputReadMode_Down)
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return g.IO.NavInputs[n]; // Instant, read analog input (0.0f..1.0f, as provided by user)
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const float t = g.IO.NavInputsDownDuration[n];
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if (t < 0.0f && mode == ImGuiInputReadMode_Released) // Return 1.0f when just released, no repeat, ignore analog input.
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return (g.IO.NavInputsDownDurationPrev[n] >= 0.0f ? 1.0f : 0.0f);
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if (t < 0.0f)
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return 0.0f;
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if (mode == ImGuiInputReadMode_Pressed) // Return 1.0f when just pressed, no repeat, ignore analog input.
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return (t == 0.0f) ? 1.0f : 0.0f;
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if (mode == ImGuiInputReadMode_Repeat)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 0.80f, g.IO.KeyRepeatRate * 0.80f);
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if (mode == ImGuiInputReadMode_RepeatSlow)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 1.00f, g.IO.KeyRepeatRate * 2.00f);
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if (mode == ImGuiInputReadMode_RepeatFast)
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return (float)CalcTypematicPressedRepeatAmount(t, t - g.IO.DeltaTime, g.IO.KeyRepeatDelay * 0.80f, g.IO.KeyRepeatRate * 0.30f);
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return 0.0f;
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}
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ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInputReadMode mode, float slow_factor, float fast_factor)
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{
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ImVec2 delta(0.0f, 0.0f);
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if (dir_sources & ImGuiNavDirSourceFlags_Keyboard)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_KeyRight_, mode) - GetNavInputAmount(ImGuiNavInput_KeyLeft_, mode), GetNavInputAmount(ImGuiNavInput_KeyDown_, mode) - GetNavInputAmount(ImGuiNavInput_KeyUp_, mode));
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if (dir_sources & ImGuiNavDirSourceFlags_PadDPad)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_DpadRight, mode) - GetNavInputAmount(ImGuiNavInput_DpadLeft, mode), GetNavInputAmount(ImGuiNavInput_DpadDown, mode) - GetNavInputAmount(ImGuiNavInput_DpadUp, mode));
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if (dir_sources & ImGuiNavDirSourceFlags_PadLStick)
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delta += ImVec2(GetNavInputAmount(ImGuiNavInput_LStickRight, mode) - GetNavInputAmount(ImGuiNavInput_LStickLeft, mode), GetNavInputAmount(ImGuiNavInput_LStickDown, mode) - GetNavInputAmount(ImGuiNavInput_LStickUp, mode));
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if (slow_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakSlow))
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delta *= slow_factor;
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if (fast_factor != 0.0f && IsNavInputDown(ImGuiNavInput_TweakFast))
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delta *= fast_factor;
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return delta;
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}
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// Scroll to keep newly navigated item fully into view
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// NB: We modify rect_rel by the amount we scrolled for, so it is immediately updated.
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static void NavScrollToBringItemIntoView(ImGuiWindow* window, const ImRect& item_rect)
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{
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ImRect window_rect(window->InnerMainRect.Min - ImVec2(1, 1), window->InnerMainRect.Max + ImVec2(1, 1));
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//g.OverlayDrawList.AddRect(window_rect.Min, window_rect.Max, IM_COL32_WHITE); // [DEBUG]
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if (window_rect.Contains(item_rect))
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return;
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ImGuiContext& g = *GImGui;
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if (window->ScrollbarX && item_rect.Min.x < window_rect.Min.x)
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{
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window->ScrollTarget.x = item_rect.Min.x - window->Pos.x + window->Scroll.x - g.Style.ItemSpacing.x;
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window->ScrollTargetCenterRatio.x = 0.0f;
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}
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else if (window->ScrollbarX && item_rect.Max.x >= window_rect.Max.x)
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{
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window->ScrollTarget.x = item_rect.Max.x - window->Pos.x + window->Scroll.x + g.Style.ItemSpacing.x;
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window->ScrollTargetCenterRatio.x = 1.0f;
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}
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if (item_rect.Min.y < window_rect.Min.y)
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{
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window->ScrollTarget.y = item_rect.Min.y - window->Pos.y + window->Scroll.y - g.Style.ItemSpacing.y;
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window->ScrollTargetCenterRatio.y = 0.0f;
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}
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else if (item_rect.Max.y >= window_rect.Max.y)
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{
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window->ScrollTarget.y = item_rect.Max.y - window->Pos.y + window->Scroll.y + g.Style.ItemSpacing.y;
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window->ScrollTargetCenterRatio.y = 1.0f;
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}
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}
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static void ImGui::NavUpdate()
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{
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ImGuiContext& g = *GImGui;
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@ -7868,6 +7828,45 @@ static float ImGui::NavUpdatePageUpPageDown(int allowed_dir_flags)
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return 0.0f;
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}
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// Window has already passed the IsWindowNavFocusable()
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static const char* GetFallbackWindowNameForWindowingList(ImGuiWindow* window)
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{
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if (window->Flags & ImGuiWindowFlags_Popup)
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return "(Popup)";
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if ((window->Flags & ImGuiWindowFlags_MenuBar) && strcmp(window->Name, "##MainMenuBar") == 0)
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return "(Main menu bar)";
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return "(Untitled)";
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}
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// Overlay displayed when using CTRL+TAB. Called by EndFrame().
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void ImGui::NavUpdateWindowingList()
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{
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ImGuiContext& g = *GImGui;
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IM_ASSERT(g.NavWindowingTarget != NULL);
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if (g.NavWindowingTimer < NAV_WINDOWING_LIST_APPEAR_DELAY)
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return;
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if (g.NavWindowingList == NULL)
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g.NavWindowingList = FindWindowByName("###NavWindowingList");
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SetNextWindowSizeConstraints(ImVec2(g.IO.DisplaySize.x * 0.20f, g.IO.DisplaySize.y * 0.20f), ImVec2(FLT_MAX, FLT_MAX));
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SetNextWindowPos(g.IO.DisplaySize * 0.5f, ImGuiCond_Always, ImVec2(0.5f, 0.5f));
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PushStyleVar(ImGuiStyleVar_WindowPadding, g.Style.WindowPadding * 2.0f);
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Begin("###NavWindowingList", NULL, ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoNav | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoInputs | ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_NoSavedSettings);
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for (int n = g.Windows.Size - 1; n >= 0; n--)
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{
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ImGuiWindow* window = g.Windows[n];
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if (!IsWindowNavFocusable(window))
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continue;
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const char* label = window->Name;
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if (label == FindRenderedTextEnd(label))
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label = GetFallbackWindowNameForWindowingList(window);
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Selectable(label, g.NavWindowingTarget == window);
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}
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End();
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PopStyleVar();
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}
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//-----------------------------------------------------------------------------
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// COLUMNS
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//-----------------------------------------------------------------------------
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