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Nav: Keyboard: Added CTRL+TAB (and CTRL+Shift+TAB) style window selection. (#787)
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1
TODO.txt
1
TODO.txt
@ -237,7 +237,6 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
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- focus: SetKeyboardFocusHere() on with >= 0 offset could be done on same frame (else latch and modulate on beginning of next frame)
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- focus: unable to use SetKeyboardFocusHere() on clipped widgets. (#787)
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- inputs: rework IO system to be able to pass actual ordered/timestamped events. use an event queue? (~#335, #71)
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- inputs: allow to pass explicit double-clicks if that's the only thing the user's backend can get them. (e.g. for windows by the CS_DBLCLKS style).
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- inputs: support track pad style scrolling & slider edit.
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- misc: idle refresh: expose cursor blink animation timer for backend to be able to lower framerate.
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127
imgui.cpp
127
imgui.cpp
@ -2700,42 +2700,52 @@ ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInput
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return delta;
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}
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// Window management mode (hold to: change focus/move/resize, tap to: toggle menu layer)
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static void ImGui::NavUpdateWindowing()
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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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bool toggle_layer = false;
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IM_ASSERT(g.NavWindowingTarget);
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if (g.NavWindowingTarget->Flags & ImGuiWindowFlags_Modal)
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return;
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if (!g.NavWindowingTarget && IsNavInputPressed(ImGuiNavInput_PadMenu, ImGuiInputReadMode_Pressed))
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{
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ImGuiWindow* window = g.NavWindow;
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if (!window)
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window = FindWindowNavigable(g.Windows.Size - 1, -1, -1);
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if (window)
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{
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g.NavWindowingTarget = window->RootNonPopupWindow;
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g.NavWindowingDisplayAlpha = 0.0f;
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g.NavWindowingToggleLayer = true;
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}
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}
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if (g.NavWindowingTarget)
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{
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// Visuals only appears after a brief time holding the button, so that a fast tap (to toggle NavLayer) doesn't add visual noise
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const float pressed_duration = g.IO.NavInputsDownDuration[ImGuiNavInput_PadMenu];
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g.NavWindowingDisplayAlpha = ImMax(g.NavWindowingDisplayAlpha, ImSaturate((pressed_duration - 0.20f) / 0.05f));
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g.NavWindowingToggleLayer &= (g.NavWindowingDisplayAlpha < 1.0f); // Once button is held long enough we don't consider it a tag-to-toggle-layer press anymore.
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// Select window to focus
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const int focus_change_dir = (int)IsNavInputPressed(ImGuiNavInput_PadFocusPrev, ImGuiInputReadMode_RepeatSlow) - (int)IsNavInputPressed(ImGuiNavInput_PadFocusNext, ImGuiInputReadMode_RepeatSlow);
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if (focus_change_dir != 0 && !(g.NavWindowingTarget->Flags & ImGuiWindowFlags_Modal))
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{
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const int i_current = FindWindowIndex(g.NavWindowingTarget);
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ImGuiWindow* window_target = FindWindowNavigable(i_current + focus_change_dir, -1, focus_change_dir);
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ImGuiWindow* window_target = FindWindowNavigable(i_current + focus_change_dir, -INT_MAX, focus_change_dir);
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if (!window_target)
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window_target = FindWindowNavigable((focus_change_dir < 0) ? (g.Windows.Size - 1) : 0, i_current, focus_change_dir);
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g.NavWindowingTarget = window_target;
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g.NavWindowingToggleLayer = false;
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g.NavWindowingDisplayAlpha = 1.0f;
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}
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// Window management mode (hold to: change focus/move/resize, tap to: toggle menu layer)
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static void ImGui::NavUpdateWindowing()
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{
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ImGuiContext& g = *GImGui;
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ImGuiWindow* apply_focus_window = NULL;
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bool apply_toggle_layer = false;
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bool start_windowing_with_gamepad = !g.NavWindowingTarget && IsNavInputPressed(ImGuiNavInput_PadMenu, ImGuiInputReadMode_Pressed);
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bool start_windowing_with_keyboard = !g.NavWindowingTarget && g.IO.KeyCtrl && IsKeyPressedMap(ImGuiKey_Tab) && (g.IO.NavFlags & ImGuiNavFlags_EnableKeyboard);
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if (start_windowing_with_gamepad || start_windowing_with_keyboard)
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if (ImGuiWindow* window = g.NavWindow ? g.NavWindow : FindWindowNavigable(g.Windows.Size - 1, -INT_MAX, -1))
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{
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g.NavWindowingTarget = window->RootNonPopupWindow;
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g.NavWindowingHighlightTimer = g.NavWindowingHighlightAlpha = 0.0f;
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g.NavWindowingToggleLayer = start_windowing_with_keyboard ? false : true;
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g.NavWindowingIsKeyboardMode = start_windowing_with_keyboard;
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}
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// Gamepad update
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g.NavWindowingHighlightTimer += g.IO.DeltaTime;
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if (g.NavWindowingTarget && !g.NavWindowingIsKeyboardMode)
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{
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// Highlight only appears after a brief time holding the button, so that a fast tap on PadMenu (to toggle NavLayer) doesn't add visual noise
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g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingHighlightTimer - 0.20f) / 0.05f));
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// Select window to focus
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const int focus_change_dir = (int)IsNavInputPressed(ImGuiNavInput_PadFocusPrev, ImGuiInputReadMode_RepeatSlow) - (int)IsNavInputPressed(ImGuiNavInput_PadFocusNext, ImGuiInputReadMode_RepeatSlow);
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if (focus_change_dir != 0)
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{
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NavUpdateWindowingHighlightWindow(focus_change_dir);
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g.NavWindowingHighlightAlpha = 1.0f;
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}
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// Move window
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@ -2751,34 +2761,51 @@ static void ImGui::NavUpdateWindowing()
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}
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}
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// Single press toggles NavLayer, long press with L/R apply actual focus on release (until then the window was merely rendered front-most)
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if (!IsNavInputDown(ImGuiNavInput_PadMenu))
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{
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// Apply actual focus only when releasing the NavMenu button (until then the window was merely rendered front-most)
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if (g.NavWindowingTarget && !g.NavWindowingToggleLayer && (!g.NavWindow || g.NavWindowingTarget != g.NavWindow->RootNonPopupWindow))
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{
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FocusWindow(g.NavWindowingTarget);
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g.NavDisableHighlight = false;
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g.NavDisableMouseHover = true;
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if (g.NavWindowingTarget->NavLastIds[0] == 0)
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NavInitWindow(g.NavWindowingTarget, false);
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// If the window only has a menu layer, select it directly
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if (g.NavWindowingTarget->DC.NavLayerActiveMask == 0x02)
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g.NavLayer = 1;
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}
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// Single press toggles NavLayer
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g.NavWindowingToggleLayer &= (g.NavWindowingHighlightAlpha < 1.0f); // Once button was held long enough we don't consider it a tap-to-toggle-layer press anymore.
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if (g.NavWindowingToggleLayer && g.NavWindow)
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toggle_layer = true;
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apply_toggle_layer = true;
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else if (!g.NavWindowingToggleLayer)
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apply_focus_window = g.NavWindowingTarget;
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g.NavWindowingTarget = NULL;
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}
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}
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// Keyboard: Press and release ALT to toggle menu
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if ((g.ActiveId == 0 || g.ActiveIdAllowOverlap) && IsNavInputPressed(ImGuiNavInput_KeyMenu, ImGuiInputReadMode_Released))
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toggle_layer = true;
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// Keyboard: Focus
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if (g.NavWindowingTarget && g.NavWindowingIsKeyboardMode)
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{
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// Visuals only appears after a brief time after pressing TAB the first time, so that a fast CTRL+TAB doesn't add visual noise
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g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingHighlightTimer - 0.15f) / 0.04f)); // 1.0f
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if (IsKeyPressedMap(ImGuiKey_Tab, true))
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NavUpdateWindowingHighlightWindow(g.IO.KeyShift ? +1 : -1);
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if (!g.IO.KeyCtrl)
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apply_focus_window = g.NavWindowingTarget;
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}
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if (toggle_layer && g.NavWindow)
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// Keyboard: Press and release ALT to toggle menu layer
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if ((g.ActiveId == 0 || g.ActiveIdAllowOverlap) && IsNavInputPressed(ImGuiNavInput_KeyMenu, ImGuiInputReadMode_Released))
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apply_toggle_layer = true;
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// Apply final focus
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if (apply_focus_window && (g.NavWindow == NULL || apply_focus_window != g.NavWindow->RootNonPopupWindow))
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{
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g.NavDisableHighlight = false;
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g.NavDisableMouseHover = true;
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FocusWindow(apply_focus_window);
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if (apply_focus_window->NavLastIds[0] == 0)
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NavInitWindow(apply_focus_window, false);
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// If the window only has a menu layer, select it directly
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if (apply_focus_window->DC.NavLayerActiveMask == (1 << 1))
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g.NavLayer = 1;
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}
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if (apply_focus_window)
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g.NavWindowingTarget = NULL;
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// Apply menu/layer toggle
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if (apply_toggle_layer && g.NavWindow)
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{
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if ((g.NavWindow->DC.NavLayerActiveMask & (1 << 1)) == 0 && (g.NavWindow->RootWindow->DC.NavLayerActiveMask & (1 << 1)) != 0)
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FocusWindow(g.NavWindow->RootWindow);
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@ -5710,8 +5737,8 @@ bool ImGui::Begin(const char* name, bool* p_open, ImGuiWindowFlags flags)
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{
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ImRect bb = window->Rect();
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bb.Expand(g.FontSize);
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window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingDisplayAlpha * 0.25f), g.Style.WindowRounding);
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window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingDisplayAlpha), g.Style.WindowRounding, ~0, 3.0f);
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window->DrawList->AddRectFilled(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha * 0.25f), g.Style.WindowRounding);
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window->DrawList->AddRect(bb.Min, bb.Max, GetColorU32(ImGuiCol_NavWindowingHighlight, g.NavWindowingHighlightAlpha), g.Style.WindowRounding, ~0, 3.0f);
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}
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// Draw window + handle manual resize
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4
imgui.h
4
imgui.h
@ -730,8 +730,8 @@ enum ImGuiNavInput_
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// [BETA] Gamepad/Keyboard directional navigation options
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enum ImGuiNavFlags_
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{
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ImGuiNavFlags_EnableGamepad = 1 << 0, // Master gamepad navigation enable flag. This is to instruct your imgui binding whether to fill in gamepad navigation inputs. imgui itself won't use this flag.
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ImGuiNavFlags_EnableKeyboard = 1 << 1, // Master keyboard navigation enable flag. This is to instruct your imgui binding whether to fill in keyboard navigation inputs. imgui itself won't use this flag.
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ImGuiNavFlags_EnableGamepad = 1 << 0, // Master gamepad navigation enable flag. This is mostly to instruct your imgui binding whether to fill in gamepad navigation inputs.
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ImGuiNavFlags_EnableKeyboard = 1 << 1, // Master keyboard navigation enable flag. This is mostly to instruct your imgui binding whether to fill in keyboard navigation inputs.
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ImGuiNavFlags_MoveMouse = 1 << 2 // Request navigation to allow move the mouse cursor. May be useful on TV/console systems where moving a virtual mouse is awkward. Will update io.MousePos and set io.WantMoveMouse=true. If enabled you MUST honor io.WantMoveMouse requests in your binding, otherwise ImGui will react as if the mouse is jumping around back and forth.
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};
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@ -591,8 +591,10 @@ struct ImGuiContext
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ImGuiID NavJustMovedToId; // Just navigated to this id (result of a successfully MoveRequest)
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ImRect NavScoringRectScreen; // Rectangle used for scoring, in screen space. Based of window->DC.NavRefRectRel[], modified for directional navigation scoring.
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ImGuiWindow* NavWindowingTarget; // When selecting a window (holding Menu+FocusPrev/Next, or equivalent of CTRL-TAB) this window is temporarily displayed front-most.
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float NavWindowingDisplayAlpha;
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float NavWindowingHighlightTimer;
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float NavWindowingHighlightAlpha;
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bool NavWindowingToggleLayer;
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bool NavWindowingIsKeyboardMode; // Gamepad or keyboard mode
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int NavLayer; // Layer we are navigating on. For now the system is hard-coded for 0=main contents and 1=menu/title bar, may expose layers later.
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int NavIdTabCounter; // == NavWindow->DC.FocusIdxTabCounter at time of NavId processing
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bool NavIdIsAlive; // Nav widget has been seen this frame ~~ NavRefRectRel is valid
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@ -710,8 +712,9 @@ struct ImGuiContext
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NavJustTabbedId = NavJustMovedToId = NavNextActivateId = 0;
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NavScoringRectScreen = ImRect();
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NavWindowingTarget = NULL;
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NavWindowingDisplayAlpha = 0.0f;
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NavWindowingHighlightTimer = NavWindowingHighlightAlpha = 0.0f;
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NavWindowingToggleLayer = false;
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NavWindowingIsKeyboardMode = false;
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NavLayer = 0;
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NavIdTabCounter = INT_MAX;
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NavIdIsAlive = false;
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