Merge branch 'master' into docking

# Conflicts:
#	backends/imgui_impl_glfw.cpp
#	imgui.cpp

backends/imgui_impl_glfw.cpp

@@ -21,6 +21,7 @@
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
 //  2022-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
+//  2022-04-30: Inputs: Fixed ImGui_ImplGlfw_TranslateUntranslatedKey() for lower case letters on OSX.
 //  2022-03-23: Inputs: Fixed a regression in 1.87 which resulted in keyboard modifiers events being reported incorrectly on Linux/X11.
 //  2022-02-07: Added ImGui_ImplGlfw_InstallCallbacks()/ImGui_ImplGlfw_RestoreCallbacks() helpers to facilitate user installing callbacks after initializing backend.
 //  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago)with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
@@ -334,6 +335,7 @@ static int ImGui_ImplGlfw_TranslateUntranslatedKey(int key, int scancode)
         IM_ASSERT(IM_ARRAYSIZE(char_names) == IM_ARRAYSIZE(char_keys));
         if (key_name[0] >= '0' && key_name[0] <= '9')               { key = GLFW_KEY_0 + (key_name[0] - '0'); }
         else if (key_name[0] >= 'A' && key_name[0] <= 'Z')          { key = GLFW_KEY_A + (key_name[0] - 'A'); }
+        else if (key_name[0] >= 'a' && key_name[0] <= 'z')          { key = GLFW_KEY_A + (key_name[0] - 'a'); }
         else if (const char* p = strchr(char_names, key_name[0]))   { key = char_keys[p - char_names]; }
     }
     // if (action == GLFW_PRESS) printf("key %d scancode %d name '%s'\n", key, scancode, key_name);

backends/imgui_impl_metal.mm

@@ -14,6 +14,7 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2022-04-27: Misc: Store backend data in a per-context struct, allowing to use this backend with multiple contexts.
 //  2022-01-03: Metal: Ignore ImDrawCmd where ElemCount == 0 (very rare but can technically be manufactured by user code).
 //  2021-12-30: Metal: Added Metal C++ support. Enable with '#define IMGUI_IMPL_METAL_CPP' in your imconfig.h file.
 //  2021-08-24: Metal: Fixed a crash when clipping rect larger than framebuffer is submitted. (#4464)
@@ -28,17 +29,15 @@
 
 #include "imgui.h"
 #include "imgui_impl_metal.h"
-
+#import <time.h>
 #import <Metal/Metal.h>
-// #import <QuartzCore/CAMetalLayer.h> // Not supported in XCode 9.2. Maybe a macro to detect the SDK version can be used (something like #if MACOS_SDK >= 10.13 ...)
-#import <simd/simd.h>
 
 #pragma mark - Support classes
 
 // A wrapper around a MTLBuffer object that knows the last time it was reused
 @interface MetalBuffer : NSObject
 @property (nonatomic, strong) id<MTLBuffer> buffer;
-@property (nonatomic, assign) NSTimeInterval lastReuseTime;
+@property (nonatomic, assign) double lastReuseTime;
 - (instancetype)initWithBuffer:(id<MTLBuffer>)buffer;
 @end
 
@@ -56,12 +55,13 @@
 // renderer backend. Stores the render pipeline state cache and the default
 // font texture, and manages the reusable buffer cache.
 @interface MetalContext : NSObject
+@property (nonatomic, strong) id<MTLDevice> device;
 @property (nonatomic, strong) id<MTLDepthStencilState> depthStencilState;
 @property (nonatomic, strong) FramebufferDescriptor *framebufferDescriptor; // framebuffer descriptor for current frame; transient
 @property (nonatomic, strong) NSMutableDictionary *renderPipelineStateCache; // pipeline cache; keyed on framebuffer descriptors
 @property (nonatomic, strong, nullable) id<MTLTexture> fontTexture;
 @property (nonatomic, strong) NSMutableArray<MetalBuffer *> *bufferCache;
-@property (nonatomic, assign) NSTimeInterval lastBufferCachePurge;
+@property (nonatomic, assign) double lastBufferCachePurge;
 - (void)makeDeviceObjectsWithDevice:(id<MTLDevice>)device;
 - (void)makeFontTextureWithDevice:(id<MTLDevice>)device;
 - (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device;
@@ -79,7 +79,18 @@
         commandEncoder:(id<MTLRenderCommandEncoder>)commandEncoder;
 @end
 
-static MetalContext *g_sharedMetalContext = nil;
+struct ImGui_ImplMetal_Data
+{
+    MetalContext*            SharedMetalContext;
+
+    ImGui_ImplMetal_Data()  { memset(this, 0, sizeof(*this)); }
+};
+
+static ImGui_ImplMetal_Data*     ImGui_ImplMetal_CreateBackendData()  { return IM_NEW(ImGui_ImplMetal_Data)(); }
+static ImGui_ImplMetal_Data*     ImGui_ImplMetal_GetBackendData()     { return ImGui::GetCurrentContext() ? (ImGui_ImplMetal_Data*)ImGui::GetIO().BackendRendererUserData : NULL; }
+static void                      ImGui_ImplMetal_DestroyBackendData() { IM_DELETE(ImGui_ImplMetal_GetBackendData()); }
+
+static inline CFTimeInterval     GetMachAbsoluteTimeInSeconds()       { return static_cast<CFTimeInterval>(static_cast<double>(clock_gettime_nsec_np(CLOCK_UPTIME_RAW)) / 1e9); }
 
 #ifdef IMGUI_IMPL_METAL_CPP
 
@@ -121,16 +132,14 @@ bool ImGui_ImplMetal_CreateDeviceObjects(MTL::Device* device)
 
 bool ImGui_ImplMetal_Init(id<MTLDevice> device)
 {
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_CreateBackendData();
     ImGuiIO& io = ImGui::GetIO();
+    io.BackendRendererUserData = (void*)bd;
     io.BackendRendererName = "imgui_impl_metal";
     io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;  // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
 
-    static dispatch_once_t onceToken;
-    dispatch_once(&onceToken, ^{
-        g_sharedMetalContext = [[MetalContext alloc] init];
-    });
-
-    ImGui_ImplMetal_CreateDeviceObjects(device);
+    bd->SharedMetalContext = [[MetalContext alloc] init];
+    bd->SharedMetalContext.device = device;
 
     return true;
 }
@@ -138,42 +147,48 @@ bool ImGui_ImplMetal_Init(id<MTLDevice> device)
 void ImGui_ImplMetal_Shutdown()
 {
     ImGui_ImplMetal_DestroyDeviceObjects();
+    ImGui_ImplMetal_DestroyBackendData();
 }
 
 void ImGui_ImplMetal_NewFrame(MTLRenderPassDescriptor *renderPassDescriptor)
 {
-    IM_ASSERT(g_sharedMetalContext != nil && "No Metal context. Did you call ImGui_ImplMetal_Init() ?");
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    IM_ASSERT(bd->SharedMetalContext != nil && "No Metal context. Did you call ImGui_ImplMetal_Init() ?");
+    bd->SharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
 
-    g_sharedMetalContext.framebufferDescriptor = [[FramebufferDescriptor alloc] initWithRenderPassDescriptor:renderPassDescriptor];
+    if (bd->SharedMetalContext.depthStencilState == nil)
+        ImGui_ImplMetal_CreateDeviceObjects(bd->SharedMetalContext.device);
 }
 
 // Metal Render function.
 void ImGui_ImplMetal_RenderDrawData(ImDrawData* draw_data, id<MTLCommandBuffer> commandBuffer, id<MTLRenderCommandEncoder> commandEncoder)
 {
-    [g_sharedMetalContext renderDrawData:draw_data commandBuffer:commandBuffer commandEncoder:commandEncoder];
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    [bd->SharedMetalContext renderDrawData:draw_data commandBuffer:commandBuffer commandEncoder:commandEncoder];
 }
 
 bool ImGui_ImplMetal_CreateFontsTexture(id<MTLDevice> device)
 {
-    [g_sharedMetalContext makeFontTextureWithDevice:device];
-
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
-    io.Fonts->SetTexID((__bridge void *)g_sharedMetalContext.fontTexture); // ImTextureID == void*
+    [bd->SharedMetalContext makeFontTextureWithDevice:device];
+    io.Fonts->SetTexID((__bridge void *)bd->SharedMetalContext.fontTexture); // ImTextureID == void*
 
-    return (g_sharedMetalContext.fontTexture != nil);
+    return (bd->SharedMetalContext.fontTexture != nil);
 }
 
 void ImGui_ImplMetal_DestroyFontsTexture()
 {
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
-    g_sharedMetalContext.fontTexture = nil;
+    bd->SharedMetalContext.fontTexture = nil;
     io.Fonts->SetTexID(nullptr);
 }
 
 bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
 {
-    [g_sharedMetalContext makeDeviceObjectsWithDevice:device];
-
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
+    [bd->SharedMetalContext makeDeviceObjectsWithDevice:device];
     ImGui_ImplMetal_CreateFontsTexture(device);
 
     return true;
@@ -181,8 +196,9 @@ bool ImGui_ImplMetal_CreateDeviceObjects(id<MTLDevice> device)
 
 void ImGui_ImplMetal_DestroyDeviceObjects()
 {
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     ImGui_ImplMetal_DestroyFontsTexture();
-    [g_sharedMetalContext emptyRenderPipelineStateCache];
+    [bd->SharedMetalContext emptyRenderPipelineStateCache];
 }
 
 #pragma mark - MetalBuffer implementation
@@ -193,7 +209,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
     if ((self = [super init]))
     {
         _buffer = buffer;
-        _lastReuseTime = [NSDate date].timeIntervalSince1970;
+        _lastReuseTime = GetMachAbsoluteTimeInSeconds();
     }
     return self;
 }
@@ -255,7 +271,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
     {
         _renderPipelineStateCache = [NSMutableDictionary dictionary];
         _bufferCache = [NSMutableArray array];
-        _lastBufferCachePurge = [NSDate date].timeIntervalSince1970;
+        _lastBufferCachePurge = GetMachAbsoluteTimeInSeconds();
     }
     return self;
 }
@@ -295,7 +311,7 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
 
 - (MetalBuffer *)dequeueReusableBufferOfLength:(NSUInteger)length device:(id<MTLDevice>)device
 {
-    NSTimeInterval now = [NSDate date].timeIntervalSince1970;
+    uint64_t now = GetMachAbsoluteTimeInSeconds();
 
     // Purge old buffers that haven't been useful for a while
     if (now - self.lastBufferCachePurge > 1.0)
@@ -460,8 +476,9 @@ void ImGui_ImplMetal_DestroyDeviceObjects()
             vertexBuffer:(MetalBuffer *)vertexBuffer
       vertexBufferOffset:(size_t)vertexBufferOffset
 {
+    ImGui_ImplMetal_Data* bd = ImGui_ImplMetal_GetBackendData();
     [commandEncoder setCullMode:MTLCullModeNone];
-    [commandEncoder setDepthStencilState:g_sharedMetalContext.depthStencilState];
+    [commandEncoder setDepthStencilState:bd->SharedMetalContext.depthStencilState];
 
     // Setup viewport, orthographic projection matrix
     // Our visible imgui space lies from draw_data->DisplayPos (top left) to

backends/imgui_impl_osx.h

@@ -24,4 +24,3 @@
 IMGUI_IMPL_API bool     ImGui_ImplOSX_Init(NSView* _Nonnull view);
 IMGUI_IMPL_API void     ImGui_ImplOSX_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplOSX_NewFrame(NSView* _Nullable view);
-IMGUI_IMPL_API bool     ImGui_ImplOSX_HandleEvent(NSEvent* _Nonnull event, NSView* _Nullable view);

backends/imgui_impl_osx.mm

@@ -19,12 +19,14 @@
 #import "imgui.h"
 #import "imgui_impl_osx.h"
 #import <Cocoa/Cocoa.h>
-#import <mach/mach_time.h>
 #import <Carbon/Carbon.h>
 #import <GameController/GameController.h>
+#import <time.h>
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2022-05-03: Inputs: Removed ImGui_ImplOSX_HandleEvent() from backend API in favor of backend automatically handling event capture.
+//  2022-04-27: Misc: Store backend data in a per-context struct, allowing to use this backend with multiple contexts.
 //  2022-03-22: Inputs: Monitor NSKeyUp events to catch missing keyUp for key when user press Cmd + key
 //  2022-02-07: Inputs: Forward keyDown/keyUp events to OS when unused by dear imgui.
 //  2022-01-31: Fix building with old Xcode versions that are missing gamepad features.
@@ -55,17 +57,32 @@
 #define APPLE_HAS_CONTROLLER     (__IPHONE_OS_VERSION_MIN_REQUIRED >= 140000 || __MAC_OS_X_VERSION_MIN_REQUIRED >= 110000 || __TV_OS_VERSION_MIN_REQUIRED >= 140000)
 #define APPLE_HAS_THUMBSTICKS    (__IPHONE_OS_VERSION_MIN_REQUIRED >= 120100 || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101401 || __TV_OS_VERSION_MIN_REQUIRED >= 120100)
 
-@class ImFocusObserver;
+@class ImGuiObserver;
 @class KeyEventResponder;
 
 // Data
-static double               g_HostClockPeriod = 0.0;
-static double               g_Time = 0.0;
-static NSCursor*            g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
-static bool                 g_MouseCursorHidden = false;
-static ImFocusObserver*     g_FocusObserver = nil;
-static KeyEventResponder*   g_KeyEventResponder = nil;
-static NSTextInputContext*  g_InputContext = nil;
+struct ImGui_ImplOSX_Data
+{
+    CFTimeInterval          Time;
+    NSCursor*               MouseCursors[ImGuiMouseCursor_COUNT];
+    bool                    MouseCursorHidden;
+    ImGuiObserver*          Observer;
+    KeyEventResponder*      KeyEventResponder;
+    NSTextInputContext*     InputContext;
+    id                      Monitor;
+
+    ImGui_ImplOSX_Data()    { memset(this, 0, sizeof(*this)); }
+};
+
+static ImGui_ImplOSX_Data*  ImGui_ImplOSX_CreateBackendData()  { return IM_NEW(ImGui_ImplOSX_Data)(); }
+static ImGui_ImplOSX_Data*  ImGui_ImplOSX_GetBackendData()     { return (ImGui_ImplOSX_Data*)ImGui::GetIO().BackendPlatformUserData; }
+static void                 ImGui_ImplOSX_DestroyBackendData() { IM_DELETE(ImGui_ImplOSX_GetBackendData()); }
+
+static inline CFTimeInterval GetMachAbsoluteTimeInSeconds()    { return static_cast<CFTimeInterval>(static_cast<double>(clock_gettime_nsec_np(CLOCK_UPTIME_RAW)) / 1e9); }
+
+// Forward Declarations
+static void ImGui_ImplOSX_AddTrackingArea(NSView* _Nonnull view);
+static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view);
 
 // Undocumented methods for creating cursors.
 @interface NSCursor()
@@ -75,18 +92,6 @@ static NSTextInputContext*  g_InputContext = nil;
 + (id)_windowResizeEastWestCursor;
 @end
 
-static void InitHostClockPeriod()
-{
-    struct mach_timebase_info info;
-    mach_timebase_info(&info);
-    g_HostClockPeriod = 1e-9 * ((double)info.denom / (double)info.numer); // Period is the reciprocal of frequency.
-}
-
-static double GetMachAbsoluteTimeInSeconds()
-{
-    return (double)mach_absolute_time() * g_HostClockPeriod;
-}
-
 /**
  KeyEventResponder implements the NSTextInputClient protocol as is required by the macOS text input manager.
 
@@ -215,14 +220,14 @@ static double GetMachAbsoluteTimeInSeconds()
 
 @end
 
-@interface ImFocusObserver : NSObject
+@interface ImGuiObserver : NSObject
 
 - (void)onApplicationBecomeActive:(NSNotification*)aNotification;
 - (void)onApplicationBecomeInactive:(NSNotification*)aNotification;
 
 @end
 
-@implementation ImFocusObserver
+@implementation ImGuiObserver
 
 - (void)onApplicationBecomeActive:(NSNotification*)aNotification
 {
@@ -365,6 +370,8 @@ static ImGuiKey ImGui_ImplOSX_KeyCodeToImGuiKey(int key_code)
 bool ImGui_ImplOSX_Init(NSView* view)
 {
     ImGuiIO& io = ImGui::GetIO();
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_CreateBackendData();
+    io.BackendPlatformUserData = (void*)bd;
 
     // Setup backend capabilities flags
     io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors;           // We can honor GetMouseCursor() values (optional)
@@ -373,17 +380,19 @@ bool ImGui_ImplOSX_Init(NSView* view)
     //io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport; // We can call io.AddMouseViewportEvent() with correct data (optional)
     io.BackendPlatformName = "imgui_impl_osx";
 
+    bd->Observer = [ImGuiObserver new];
+
     // Load cursors. Some of them are undocumented.
-    g_MouseCursorHidden = false;
-    g_MouseCursors[ImGuiMouseCursor_Arrow] = [NSCursor arrowCursor];
-    g_MouseCursors[ImGuiMouseCursor_TextInput] = [NSCursor IBeamCursor];
-    g_MouseCursors[ImGuiMouseCursor_ResizeAll] = [NSCursor closedHandCursor];
-    g_MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
-    g_MouseCursors[ImGuiMouseCursor_NotAllowed] = [NSCursor operationNotAllowedCursor];
-    g_MouseCursors[ImGuiMouseCursor_ResizeNS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
-    g_MouseCursors[ImGuiMouseCursor_ResizeEW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
-    g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
-    g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
+    bd->MouseCursorHidden = false;
+    bd->MouseCursors[ImGuiMouseCursor_Arrow] = [NSCursor arrowCursor];
+    bd->MouseCursors[ImGuiMouseCursor_TextInput] = [NSCursor IBeamCursor];
+    bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = [NSCursor closedHandCursor];
+    bd->MouseCursors[ImGuiMouseCursor_Hand] = [NSCursor pointingHandCursor];
+    bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = [NSCursor operationNotAllowedCursor];
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = [NSCursor respondsToSelector:@selector(_windowResizeNorthSouthCursor)] ? [NSCursor _windowResizeNorthSouthCursor] : [NSCursor resizeUpDownCursor];
+    bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = [NSCursor respondsToSelector:@selector(_windowResizeEastWestCursor)] ? [NSCursor _windowResizeEastWestCursor] : [NSCursor resizeLeftRightCursor];
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = [NSCursor respondsToSelector:@selector(_windowResizeNorthEastSouthWestCursor)] ? [NSCursor _windowResizeNorthEastSouthWestCursor] : [NSCursor closedHandCursor];
+    bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = [NSCursor respondsToSelector:@selector(_windowResizeNorthWestSouthEastCursor)] ? [NSCursor _windowResizeNorthWestSouthEastCursor] : [NSCursor closedHandCursor];
 
     // Note that imgui.cpp also include default OSX clipboard handlers which can be enabled
     // by adding '#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS' in imconfig.h and adding '-framework ApplicationServices' to your linker command-line.
@@ -414,44 +423,36 @@ bool ImGui_ImplOSX_Init(NSView* view)
         return s_clipboard.Data;
     };
 
-    g_FocusObserver = [[ImFocusObserver alloc] init];
-    [[NSNotificationCenter defaultCenter] addObserver:g_FocusObserver
+    [[NSNotificationCenter defaultCenter] addObserver:bd->Observer
                                              selector:@selector(onApplicationBecomeActive:)
                                                  name:NSApplicationDidBecomeActiveNotification
                                                object:nil];
-    [[NSNotificationCenter defaultCenter] addObserver:g_FocusObserver
+    [[NSNotificationCenter defaultCenter] addObserver:bd->Observer
                                              selector:@selector(onApplicationBecomeInactive:)
                                                  name:NSApplicationDidResignActiveNotification
                                                object:nil];
 
     // Add the NSTextInputClient to the view hierarchy,
     // to receive keyboard events and translate them to input text.
-    g_KeyEventResponder = [[KeyEventResponder alloc] initWithFrame:NSZeroRect];
-    g_InputContext = [[NSTextInputContext alloc] initWithClient:g_KeyEventResponder];
-    [view addSubview:g_KeyEventResponder];
-
-    // Some events do not raise callbacks of AppView in some circumstances (for example when CMD key is held down).
-    // This monitor taps into global event stream and captures these events.
-    NSEventMask eventMask = NSEventMaskFromType(NSKeyUp) | NSEventMaskFlagsChanged;
-    [NSEvent addLocalMonitorForEventsMatchingMask:eventMask handler:^NSEvent * _Nullable(NSEvent *event)
-    {
-        ImGui_ImplOSX_HandleEvent(event, g_KeyEventResponder);
-        return event;
-    }];
+    bd->KeyEventResponder = [[KeyEventResponder alloc] initWithFrame:NSZeroRect];
+    bd->InputContext = [[NSTextInputContext alloc] initWithClient:bd->KeyEventResponder];
+    [view addSubview:bd->KeyEventResponder];
+    ImGui_ImplOSX_AddTrackingArea(view);
 
     io.SetPlatformImeDataFn = [](ImGuiViewport* viewport, ImGuiPlatformImeData* data) -> void
     {
+        ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
         if (data->WantVisible)
         {
-            [g_InputContext activate];
+            [bd->InputContext activate];
         }
         else
         {
-            [g_InputContext discardMarkedText];
-            [g_InputContext invalidateCharacterCoordinates];
-            [g_InputContext deactivate];
+            [bd->InputContext discardMarkedText];
+            [bd->InputContext invalidateCharacterCoordinates];
+            [bd->InputContext deactivate];
         }
-        [g_KeyEventResponder setImePosX:data->InputPos.x imePosY:data->InputPos.y + data->InputLineHeight];
+        [bd->KeyEventResponder setImePosX:data->InputPos.x imePosY:data->InputPos.y + data->InputLineHeight];
     };
 
     return true;
@@ -459,11 +460,19 @@ bool ImGui_ImplOSX_Init(NSView* view)
 
 void ImGui_ImplOSX_Shutdown()
 {
-    g_FocusObserver = NULL;
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
+    bd->Observer = NULL;
+    if (bd->Monitor != NULL)
+    {
+        [NSEvent removeMonitor:bd->Monitor];
+        bd->Monitor = NULL;
+    }
+    ImGui_ImplOSX_DestroyBackendData();
 }
 
 static void ImGui_ImplOSX_UpdateMouseCursor()
 {
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
     if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
         return;
@@ -472,23 +481,23 @@ static void ImGui_ImplOSX_UpdateMouseCursor()
     if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
     {
         // Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
-        if (!g_MouseCursorHidden)
+        if (!bd->MouseCursorHidden)
         {
-            g_MouseCursorHidden = true;
+            bd->MouseCursorHidden = true;
             [NSCursor hide];
         }
     }
     else
     {
-        NSCursor* desired = g_MouseCursors[imgui_cursor] ?: g_MouseCursors[ImGuiMouseCursor_Arrow];
+        NSCursor* desired = bd->MouseCursors[imgui_cursor] ?: bd->MouseCursors[ImGuiMouseCursor_Arrow];
         // -[NSCursor set] generates measureable overhead if called unconditionally.
         if (desired != NSCursor.currentCursor)
         {
             [desired set];
         }
-        if (g_MouseCursorHidden)
+        if (bd->MouseCursorHidden)
         {
-            g_MouseCursorHidden = false;
+            bd->MouseCursorHidden = false;
             [NSCursor unhide];
         }
     }
@@ -555,15 +564,18 @@ static void ImGui_ImplOSX_UpdateGamepads()
 
 static void ImGui_ImplOSX_UpdateImePosWithView(NSView* view)
 {
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
     if (io.WantTextInput)
-        [g_KeyEventResponder updateImePosWithView:view];
+        [bd->KeyEventResponder updateImePosWithView:view];
 }
 
 void ImGui_ImplOSX_NewFrame(NSView* view)
 {
-    // Setup display size
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
+
+    // Setup display size
     if (view)
     {
         const float dpi = (float)[view.window backingScaleFactor];
@@ -572,21 +584,19 @@ void ImGui_ImplOSX_NewFrame(NSView* view)
     }
 
     // Setup time step
-    if (g_Time == 0.0)
-    {
-        InitHostClockPeriod();
-        g_Time = GetMachAbsoluteTimeInSeconds();
-    }
+    if (bd->Time == 0.0)
+        bd->Time = GetMachAbsoluteTimeInSeconds();
+
     double current_time = GetMachAbsoluteTimeInSeconds();
-    io.DeltaTime = (float)(current_time - g_Time);
-    g_Time = current_time;
+    io.DeltaTime = (float)(current_time - bd->Time);
+    bd->Time = current_time;
 
     ImGui_ImplOSX_UpdateMouseCursor();
     ImGui_ImplOSX_UpdateGamepads();
     ImGui_ImplOSX_UpdateImePosWithView(view);
 }
 
-bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
+static bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
 {
     ImGuiIO& io = ImGui::GetIO();
 
@@ -711,3 +721,27 @@ bool ImGui_ImplOSX_HandleEvent(NSEvent* event, NSView* view)
 
     return false;
 }
+
+static void ImGui_ImplOSX_AddTrackingArea(NSView* _Nonnull view)
+{
+    // If we want to receive key events, we either need to be in the responder chain of the key view,
+    // or else we can install a local monitor. The consequence of this heavy-handed approach is that
+    // we receive events for all controls, not just Dear ImGui widgets. If we had native controls in our
+    // window, we'd want to be much more careful than just ingesting the complete event stream.
+    // To match the behavior of other backends, we pass every event down to the OS.
+    ImGui_ImplOSX_Data* bd = ImGui_ImplOSX_GetBackendData();
+    if (bd->Monitor)
+        return;
+    NSEventMask eventMask = 0;
+    eventMask |= NSEventMaskMouseMoved | NSEventMaskScrollWheel;
+    eventMask |= NSEventMaskLeftMouseDown | NSEventMaskLeftMouseUp | NSEventMaskLeftMouseDragged;
+    eventMask |= NSEventMaskRightMouseDown | NSEventMaskRightMouseUp | NSEventMaskRightMouseDragged;
+    eventMask |= NSEventMaskOtherMouseDown | NSEventMaskOtherMouseUp | NSEventMaskOtherMouseDragged;
+    eventMask |= NSEventMaskKeyDown | NSEventMaskKeyUp | NSEventMaskFlagsChanged;
+    bd->Monitor = [NSEvent addLocalMonitorForEventsMatchingMask:eventMask
+                                                        handler:^NSEvent* _Nullable(NSEvent* event)
+    {
+        ImGui_ImplOSX_HandleEvent(event, view);
+        return event;
+    }];
+}

backends/imgui_impl_vulkan.h

@@ -149,7 +149,7 @@ struct ImGui_ImplVulkanH_Window
     ImGui_ImplVulkanH_Window()
     {
         memset((void*)this, 0, sizeof(*this));
-        PresentMode = VK_PRESENT_MODE_MAX_ENUM_KHR;
+        PresentMode = (VkPresentModeKHR)~0;     // Ensure we get an error if user doesn't set this.
         ClearEnable = true;
     }
 };

docs/CHANGELOG.txt

@@ -106,6 +106,10 @@ Breaking changes:
 
 - Renamed ImGuiKeyModFlags to ImGuiModFlags. Kept inline redirection enums (will obsolete).
   (This was never used in public API functions but technically present in imgui.h and ImGuiIO).
+- Backends: OSX: Removed ImGui_ImplOSX_HandleEvent() from backend API in favor of backend
+  automatically handling event capture. Examples that are using the OSX backend have removed
+  all the now-unnecessary calls to ImGui_ImplOSX_HandleEvent(), applications can do as well.
+  [@stuartcarnie] (#4821)
 
 Other Changes:
 
@@ -141,6 +145,7 @@ Other Changes:
   trickled with the new input queue (happened on some backends only). (#2467, #1336)
 - Tables: Fixed incorrect border height used for logic when resizing one of several synchronized
   instance of a same table ID, when instances have a different height. (#3955).
+- Tables: Fixed incorrect auto-fit of parent windows when using non-resizable weighted columns. (#5276)
 - Inputs: Fixed IsMouseClicked() repeat mode rate being half of keyboard repeat rate.
 - ColorEdit: Fixed text baseline alignment after a SameLine() after a ColorEdit() with visible label.
 - Menus: Adjusted BeginMenu() closing logic so hovering void or non-MenuItem() in parent window
@@ -160,13 +165,18 @@ Other Changes:
 - Misc: Updated stb_rect_pack.h from 1.00 to 1.01 (minor). (#5075)
 - Misc: binary_to_compressed_c tool: Added -nostatic option. (#5021) [@podsvirov]
 - ImVector: Fixed erase() with empty range. (#5009) [@thedmd]
+- Backends: Vulkan: Don't use VK_PRESENT_MODE_MAX_ENUM_KHR as specs state it isn't part of the API. (#5254)
 - Backends: GLFW: Fixed a regression in 1.87 which resulted in keyboard modifiers events being
   reported incorrectly on Linux/X11, due to a bug in GLFW. [@rokups]
+- Backends: GLFW: Fixed untranslated keys when pressing lower case letters on OSX (#5260, #5261) [@cpichard]
 - Backends: SDL: Fixed dragging out viewport broken on some SDL setups. (#5012) [@rokups]
 - Backends: SDL: Added support for extra mouse buttons (SDL_BUTTON_X1/SDL_BUTTON_X2). (#5125) [@sgiurgiu]
 - Backends: SDL, OpenGL3: Fixes to facilitate building on AmigaOS4. (#5190) [@afxgroup]
 - Backends: OSX: Monitor NSKeyUp events to catch missing keyUp for key when user press Cmd + key (#5128) [@thedmd]
-- Examples: Emscripten: Fix building for latest Emscripten specs. (#3632)
+- Backends: OSX, Metal: Store backend data in a per-context struct, allowing to use these backends with
+  multiple contexts. (#5203, #5221, #4141) [@noisewuwei]
+- Examples: Emscripten+WebGPU: Fix building for latest WebGPU specs. (#3632)
+- Examples: OSX+Metal, OSX+OpenGL: Removed now-unnecessary calls to ImGui_ImplOSX_HandleEvent(). (#4821)
 
 Docking+Viewports Branch:
 

examples/example_apple_metal/main.mm

@@ -17,7 +17,7 @@
 #include "imgui_impl_metal.h"
 #if TARGET_OS_OSX
 #include "imgui_impl_osx.h"
-@interface AppViewController : NSViewController
+@interface AppViewController : NSViewController<NSWindowDelegate>
 @end
 #else
 @interface AppViewController : UIViewController
@@ -100,15 +100,8 @@
     self.mtkView.delegate = self;
 
 #if TARGET_OS_OSX
-    // Add a tracking area in order to receive mouse events whenever the mouse is within the bounds of our view
-    NSTrackingArea *trackingArea = [[NSTrackingArea alloc] initWithRect:NSZeroRect
-                                                                options:NSTrackingMouseMoved | NSTrackingInVisibleRect | NSTrackingActiveAlways
-                                                                  owner:self
-                                                               userInfo:nil];
-    [self.view addTrackingArea:trackingArea];
-
     ImGui_ImplOSX_Init(self.view);
-
+    [NSApp activateIgnoringOtherApps:YES];
 #endif
 }
 
@@ -125,8 +118,6 @@
 #endif
     io.DisplayFramebufferScale = ImVec2(framebufferScale, framebufferScale);
 
-    io.DeltaTime = 1 / float(view.preferredFramesPerSecond ?: 60);
-
     id<MTLCommandBuffer> commandBuffer = [self.commandQueue commandBuffer];
 
     MTLRenderPassDescriptor* renderPassDescriptor = view.currentRenderPassDescriptor;
@@ -211,20 +202,18 @@
 
 #if TARGET_OS_OSX
 
-// Forward Mouse events to Dear ImGui OSX backend.
--(void)mouseDown:(NSEvent *)event           { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)rightMouseDown:(NSEvent *)event      { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)otherMouseDown:(NSEvent *)event      { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)mouseUp:(NSEvent *)event             { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)rightMouseUp:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)otherMouseUp:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)mouseMoved:(NSEvent *)event          { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)mouseDragged:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)rightMouseMoved:(NSEvent *)event     { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)rightMouseDragged:(NSEvent *)event   { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)otherMouseMoved:(NSEvent *)event     { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)otherMouseDragged:(NSEvent *)event   { ImGui_ImplOSX_HandleEvent(event, self.view); }
--(void)scrollWheel:(NSEvent *)event         { ImGui_ImplOSX_HandleEvent(event, self.view); }
+- (void)viewWillAppear
+{
+    [super viewWillAppear];
+    self.view.window.delegate = self;
+}
+
+- (void)windowWillClose:(NSNotification *)notification
+{
+    ImGui_ImplMetal_Shutdown();
+    ImGui_ImplOSX_Shutdown();
+    ImGui::DestroyContext();
+}
 
 #else
 
@@ -288,9 +277,8 @@
                                                     backing:NSBackingStoreBuffered
                                                       defer:NO];
         self.window.contentViewController = rootViewController;
-        [self.window orderFront:self];
         [self.window center];
-        [self.window becomeKeyWindow];
+        [self.window makeKeyAndOrderFront:self];
     }
     return self;
 }

examples/example_apple_opengl2/main.mm

@@ -143,26 +143,6 @@
 -(void)animationTimerFired:(NSTimer*)timer  { [self setNeedsDisplay:YES]; }
 -(void)dealloc                              { animationTimer = nil; }
 
-//-----------------------------------------------------------------------------------
-// Input processing
-//-----------------------------------------------------------------------------------
-
-// Forward Mouse/Keyboard events to Dear ImGui OSX backend.
-// Other events are registered via addLocalMonitorForEventsMatchingMask()
--(void)mouseDown:(NSEvent *)event           { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)rightMouseDown:(NSEvent *)event      { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)otherMouseDown:(NSEvent *)event      { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)mouseUp:(NSEvent *)event             { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)rightMouseUp:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)otherMouseUp:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)mouseMoved:(NSEvent *)event          { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)mouseDragged:(NSEvent *)event        { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)rightMouseMoved:(NSEvent *)event     { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)rightMouseDragged:(NSEvent *)event   { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)otherMouseMoved:(NSEvent *)event     { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)otherMouseDragged:(NSEvent *)event   { ImGui_ImplOSX_HandleEvent(event, self); }
--(void)scrollWheel:(NSEvent *)event         { ImGui_ImplOSX_HandleEvent(event, self); }
-
 @end
 
 //-----------------------------------------------------------------------------------

examples/example_emscripten_wgpu/main.cpp

@@ -205,7 +205,7 @@ static void main_loop(void* window)
     WGPURenderPassColorAttachment color_attachments = {};
     color_attachments.loadOp = WGPULoadOp_Clear;
     color_attachments.storeOp = WGPUStoreOp_Store;
-    color_attachments.clearColor = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
+    color_attachments.clearValue = { clear_color.x * clear_color.w, clear_color.y * clear_color.w, clear_color.z * clear_color.w, clear_color.w };
     color_attachments.view = wgpuSwapChainGetCurrentTextureView(wgpu_swap_chain);
     WGPURenderPassDescriptor render_pass_desc = {};
     render_pass_desc.colorAttachmentCount = 1;

imgui.cpp

@@ -388,12 +388,13 @@ CODE
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
 (Docking/Viewport Branch)
- - 2021/XX/XX (1.XX) - when multi-viewports are enabled, all positions will be in your natural OS coordinates space. It means that:
+ - 2022/XX/XX (1.XX) - when multi-viewports are enabled, all positions will be in your natural OS coordinates space. It means that:
                         - reference to hard-coded positions such as in SetNextWindowPos(ImVec2(0,0)) are probably not what you want anymore.
                           you may use GetMainViewport()->Pos to offset hard-coded positions, e.g. SetNextWindowPos(GetMainViewport()->Pos)
                         - likewise io.MousePos and GetMousePos() will use OS coordinates.
                           If you query mouse positions to interact with non-imgui coordinates you will need to offset them, e.g. subtract GetWindowViewport()->Pos.
 
+ - 2022/05/03 (1.88) - backends: osx: removed ImGui_ImplOSX_HandleEvent() from backend API in favor of backend automatically handling event capture. All ImGui_ImplOSX_HandleEvent() calls should be removed as they are now unnecessary.
  - 2022/04/05 (1.88) - inputs: renamed ImGuiKeyModFlags to ImGuiModFlags. Kept inline redirection enums (will obsolete). This was never used in public API functions but technically present in imgui.h and ImGuiIO.
  - 2022/01/20 (1.87) - inputs: reworded gamepad IO.
                         - Backend writing to io.NavInputs[]            -> backend should call io.AddKeyEvent()/io.AddKeyAnalogEvent() with ImGuiKey_GamepadXXX values.
@@ -4129,9 +4130,9 @@ static void ImGui::UpdateKeyboardInputs()
     // Update keys
     for (int i = 0; i < IM_ARRAYSIZE(io.KeysData); i++)
     {
-        ImGuiKeyData& key_data = io.KeysData[i];
-        key_data.DownDurationPrev = key_data.DownDuration;
-        key_data.DownDuration = key_data.Down ? (key_data.DownDuration < 0.0f ? 0.0f : key_data.DownDuration + io.DeltaTime) : -1.0f;
+        ImGuiKeyData* key_data = &io.KeysData[i];
+        key_data->DownDurationPrev = key_data->DownDuration;
+        key_data->DownDuration = key_data->Down ? (key_data->DownDuration < 0.0f ? 0.0f : key_data->DownDuration + io.DeltaTime) : -1.0f;
     }
 }
 
@@ -5953,9 +5954,9 @@ static bool ImGui::UpdateWindowManualResize(ImGuiWindow* window, const ImVec2& s
     {
         ImVec2 nav_resize_delta;
         if (g.NavInputSource == ImGuiInputSource_Keyboard && g.IO.KeyShift)
-            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiInputReadMode_Down);
+            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiNavReadMode_Down);
         if (g.NavInputSource == ImGuiInputSource_Gamepad)
-            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_Down);
+            nav_resize_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_Down);
         if (nav_resize_delta.x != 0.0f || nav_resize_delta.y != 0.0f)
         {
             const float NAV_RESIZE_SPEED = 600.0f;
@@ -10679,29 +10680,29 @@ const char* ImGui::GetNavInputName(ImGuiNavInput n)
     return names[n];
 }
 
-float ImGui::GetNavInputAmount(ImGuiNavInput n, ImGuiInputReadMode mode)
+float ImGui::GetNavInputAmount(ImGuiNavInput n, ImGuiNavReadMode mode)
 {
     ImGuiContext& g = *GImGui;
-    if (mode == ImGuiInputReadMode_Down)
+    if (mode == ImGuiNavReadMode_Down)
         return g.IO.NavInputs[n];                         // Instant, read analog input (0.0f..1.0f, as provided by user)
 
     const float t = g.IO.NavInputsDownDuration[n];
-    if (t < 0.0f && mode == ImGuiInputReadMode_Released)  // Return 1.0f when just released, no repeat, ignore analog input.
+    if (t < 0.0f && mode == ImGuiNavReadMode_Released)  // Return 1.0f when just released, no repeat, ignore analog input.
         return (g.IO.NavInputsDownDurationPrev[n] >= 0.0f ? 1.0f : 0.0f);
     if (t < 0.0f)
         return 0.0f;
-    if (mode == ImGuiInputReadMode_Pressed)               // Return 1.0f when just pressed, no repeat, ignore analog input.
+    if (mode == ImGuiNavReadMode_Pressed)               // Return 1.0f when just pressed, no repeat, ignore analog input.
         return (t == 0.0f) ? 1.0f : 0.0f;
-    if (mode == ImGuiInputReadMode_Repeat)
+    if (mode == ImGuiNavReadMode_Repeat)
         return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 0.72f, g.IO.KeyRepeatRate * 0.80f);
-    if (mode == ImGuiInputReadMode_RepeatSlow)
+    if (mode == ImGuiNavReadMode_RepeatSlow)
         return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 1.25f, g.IO.KeyRepeatRate * 2.00f);
-    if (mode == ImGuiInputReadMode_RepeatFast)
+    if (mode == ImGuiNavReadMode_RepeatFast)
         return (float)CalcTypematicRepeatAmount(t - g.IO.DeltaTime, t, g.IO.KeyRepeatDelay * 0.72f, g.IO.KeyRepeatRate * 0.30f);
     return 0.0f;
 }
 
-ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInputReadMode mode, float slow_factor, float fast_factor)
+ImVec2 ImGui::GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiNavReadMode mode, float slow_factor, float fast_factor)
 {
     ImVec2 delta(0.0f, 0.0f);
     if (dir_sources & ImGuiNavDirSourceFlags_RawKeyboard)
@@ -10821,8 +10822,8 @@ static void ImGui::NavUpdate()
     {
         bool activate_down = IsNavInputDown(ImGuiNavInput_Activate);
         bool input_down = IsNavInputDown(ImGuiNavInput_Input);
-        bool activate_pressed = activate_down && IsNavInputTest(ImGuiNavInput_Activate, ImGuiInputReadMode_Pressed);
-        bool input_pressed = input_down && IsNavInputTest(ImGuiNavInput_Input, ImGuiInputReadMode_Pressed);
+        bool activate_pressed = activate_down && IsNavInputTest(ImGuiNavInput_Activate, ImGuiNavReadMode_Pressed);
+        bool input_pressed = input_down && IsNavInputTest(ImGuiNavInput_Input, ImGuiNavReadMode_Pressed);
         if (g.ActiveId == 0 && activate_pressed)
         {
             g.NavActivateId = g.NavId;
@@ -10879,7 +10880,7 @@ static void ImGui::NavUpdate()
 
         // *Normal* Manual scroll with NavScrollXXX keys
         // Next movement request will clamp the NavId reference rectangle to the visible area, so navigation will resume within those bounds.
-        ImVec2 scroll_dir = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiInputReadMode_Down, 1.0f / 10.0f, 10.0f);
+        ImVec2 scroll_dir = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiNavReadMode_Down, 1.0f / 10.0f, 10.0f);
         if (scroll_dir.x != 0.0f && window->ScrollbarX)
             SetScrollX(window, ImFloor(window->Scroll.x + scroll_dir.x * scroll_speed));
         if (scroll_dir.y != 0.0f)
@@ -10952,7 +10953,7 @@ void ImGui::NavUpdateCreateMoveRequest()
         g.NavMoveScrollFlags = ImGuiScrollFlags_None;
         if (window && !g.NavWindowingTarget && !(window->Flags & ImGuiWindowFlags_NoNavInputs))
         {
-            const ImGuiInputReadMode read_mode = ImGuiInputReadMode_Repeat;
+            const ImGuiNavReadMode read_mode = ImGuiNavReadMode_Repeat;
             if (!IsActiveIdUsingNavDir(ImGuiDir_Left)  && (IsNavInputTest(ImGuiNavInput_DpadLeft,  read_mode) || IsNavInputTest(ImGuiNavInput_KeyLeft_,  read_mode))) { g.NavMoveDir = ImGuiDir_Left; }
             if (!IsActiveIdUsingNavDir(ImGuiDir_Right) && (IsNavInputTest(ImGuiNavInput_DpadRight, read_mode) || IsNavInputTest(ImGuiNavInput_KeyRight_, read_mode))) { g.NavMoveDir = ImGuiDir_Right; }
             if (!IsActiveIdUsingNavDir(ImGuiDir_Up)    && (IsNavInputTest(ImGuiNavInput_DpadUp,    read_mode) || IsNavInputTest(ImGuiNavInput_KeyUp_,    read_mode))) { g.NavMoveDir = ImGuiDir_Up; }
@@ -11159,7 +11160,7 @@ void ImGui::NavMoveRequestApplyResult()
 static void ImGui::NavUpdateCancelRequest()
 {
     ImGuiContext& g = *GImGui;
-    if (!IsNavInputTest(ImGuiNavInput_Cancel, ImGuiInputReadMode_Pressed))
+    if (!IsNavInputTest(ImGuiNavInput_Cancel, ImGuiNavReadMode_Pressed))
         return;
 
     IMGUI_DEBUG_LOG_NAV("[nav] ImGuiNavInput_Cancel\n");
@@ -11409,7 +11410,7 @@ static void ImGui::NavUpdateWindowing()
     }
 
     // Start CTRL+Tab or Square+L/R window selection
-    const bool start_windowing_with_gamepad = allow_windowing && !g.NavWindowingTarget && IsNavInputTest(ImGuiNavInput_Menu, ImGuiInputReadMode_Pressed);
+    const bool start_windowing_with_gamepad = allow_windowing && !g.NavWindowingTarget && IsNavInputTest(ImGuiNavInput_Menu, ImGuiNavReadMode_Pressed);
     const bool start_windowing_with_keyboard = allow_windowing && !g.NavWindowingTarget && io.KeyCtrl && IsKeyPressed(ImGuiKey_Tab);
     if (start_windowing_with_gamepad || start_windowing_with_keyboard)
         if (ImGuiWindow* window = g.NavWindow ? g.NavWindow : FindWindowNavFocusable(g.WindowsFocusOrder.Size - 1, -INT_MAX, -1))
@@ -11428,7 +11429,7 @@ static void ImGui::NavUpdateWindowing()
         g.NavWindowingHighlightAlpha = ImMax(g.NavWindowingHighlightAlpha, ImSaturate((g.NavWindowingTimer - NAV_WINDOWING_HIGHLIGHT_DELAY) / 0.05f));
 
         // Select window to focus
-        const int focus_change_dir = (int)IsNavInputTest(ImGuiNavInput_FocusPrev, ImGuiInputReadMode_RepeatSlow) - (int)IsNavInputTest(ImGuiNavInput_FocusNext, ImGuiInputReadMode_RepeatSlow);
+        const int focus_change_dir = (int)IsNavInputTest(ImGuiNavInput_FocusPrev, ImGuiNavReadMode_RepeatSlow) - (int)IsNavInputTest(ImGuiNavInput_FocusNext, ImGuiNavReadMode_RepeatSlow);
         if (focus_change_dir != 0)
         {
             NavUpdateWindowingHighlightWindow(focus_change_dir);
@@ -11489,9 +11490,9 @@ static void ImGui::NavUpdateWindowing()
     {
         ImVec2 move_delta;
         if (g.NavInputSource == ImGuiInputSource_Keyboard && !io.KeyShift)
-            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiInputReadMode_Down);
+            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_RawKeyboard, ImGuiNavReadMode_Down);
         if (g.NavInputSource == ImGuiInputSource_Gamepad)
-            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiInputReadMode_Down);
+            move_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_PadLStick, ImGuiNavReadMode_Down);
         if (move_delta.x != 0.0f || move_delta.y != 0.0f)
         {
             const float NAV_MOVE_SPEED = 800.0f;

imgui.h

@@ -65,7 +65,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.88 WIP"
-#define IMGUI_VERSION_NUM           18718
+#define IMGUI_VERSION_NUM           18719
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 #define IMGUI_HAS_TABLE
 #define IMGUI_HAS_VIEWPORT          // Viewport WIP branch

imgui_internal.h

@@ -1241,14 +1241,14 @@ struct ImGuiInputEvent
 };
 
 // FIXME-NAV: Clarify/expose various repeat delay/rate
-enum ImGuiInputReadMode
+enum ImGuiNavReadMode
 {
-    ImGuiInputReadMode_Down,
-    ImGuiInputReadMode_Pressed,
-    ImGuiInputReadMode_Released,
-    ImGuiInputReadMode_Repeat,
-    ImGuiInputReadMode_RepeatSlow,
-    ImGuiInputReadMode_RepeatFast
+    ImGuiNavReadMode_Down,
+    ImGuiNavReadMode_Pressed,
+    ImGuiNavReadMode_Released,
+    ImGuiNavReadMode_Repeat,
+    ImGuiNavReadMode_RepeatSlow,
+    ImGuiNavReadMode_RepeatFast
 };
 
 //-----------------------------------------------------------------------------
@@ -2576,6 +2576,7 @@ struct IMGUI_API ImGuiTable
     float                       InnerWidth;                 // User value passed to BeginTable(), see comments at the top of BeginTable() for details.
     float                       ColumnsGivenWidth;          // Sum of current column width
     float                       ColumnsAutoFitWidth;        // Sum of ideal column width in order nothing to be clipped, used for auto-fitting and content width submission in outer window
+    float                       ColumnsStretchSumWeights;   // Sum of weight of all enabled stretching columns
     float                       ResizedColumnNextWidth;
     float                       ResizeLockMinContentsX2;    // Lock minimum contents width while resizing down in order to not create feedback loops. But we allow growing the table.
     float                       RefScale;                   // Reference scale to be able to rescale columns on font/dpi changes.
@@ -2886,8 +2887,8 @@ namespace ImGui
     IMGUI_API void          NavMoveRequestApplyResult();
     IMGUI_API void          NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags move_flags);
     IMGUI_API const char*   GetNavInputName(ImGuiNavInput n);
-    IMGUI_API float         GetNavInputAmount(ImGuiNavInput n, ImGuiInputReadMode mode);
-    IMGUI_API ImVec2        GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInputReadMode mode, float slow_factor = 0.0f, float fast_factor = 0.0f);
+    IMGUI_API float         GetNavInputAmount(ImGuiNavInput n, ImGuiNavReadMode mode);
+    IMGUI_API ImVec2        GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiNavReadMode mode, float slow_factor = 0.0f, float fast_factor = 0.0f);
     IMGUI_API int           CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate);
     IMGUI_API void          ActivateItem(ImGuiID id);   // Remotely activate a button, checkbox, tree node etc. given its unique ID. activation is queued and processed on the next frame when the item is encountered again.
     IMGUI_API void          SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel);
@@ -2914,7 +2915,7 @@ namespace ImGui
     inline void             SetActiveIdUsingKey(ImGuiKey key)                           { ImGuiContext& g = *GImGui; g.ActiveIdUsingKeyInputMask.SetBit(key); }
     IMGUI_API bool          IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold = -1.0f);
     inline bool             IsNavInputDown(ImGuiNavInput n)                             { ImGuiContext& g = *GImGui; return g.IO.NavInputs[n] > 0.0f; }
-    inline bool             IsNavInputTest(ImGuiNavInput n, ImGuiInputReadMode rm)      { return (GetNavInputAmount(n, rm) > 0.0f); }
+    inline bool             IsNavInputTest(ImGuiNavInput n, ImGuiNavReadMode rm)        { return (GetNavInputAmount(n, rm) > 0.0f); }
     IMGUI_API ImGuiModFlags GetMergedModFlags();
 #ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
     inline bool             IsKeyPressedMap(ImGuiKey key, bool repeat = true)           { IM_ASSERT(IsNamedKey(key)); return IsKeyPressed(key, repeat); } // [removed in 1.87]

imgui_tables.cpp

@@ -888,6 +888,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         sum_width_requests += table->CellPaddingX * 2.0f;
     }
     table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
+    table->ColumnsStretchSumWeights = stretch_sum_weights;
 
     // [Part 4] Apply final widths based on requested widths
     const ImRect work_rect = table->WorkRect;
@@ -1284,17 +1285,23 @@ void    ImGui::EndTable()
     splitter->Merge(inner_window->DrawList);
 
     // Update ColumnsAutoFitWidth to get us ahead for host using our size to auto-resize without waiting for next BeginTable()
-    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
-    table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount;
+    float auto_fit_width_for_fixed = 0.0f;
+    float auto_fit_width_for_stretched = 0.0f;
+    float auto_fit_width_for_stretched_min = 0.0f;
     for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
         if (table->EnabledMaskByIndex & ((ImU64)1 << column_n))
         {
             ImGuiTableColumn* column = &table->Columns[column_n];
-            if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize))
-                table->ColumnsAutoFitWidth += column->WidthRequest;
+            float column_width_request = ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize)) ? column->WidthRequest : TableGetColumnWidthAuto(table, column);
+            if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
+                auto_fit_width_for_fixed += column_width_request;
             else
-                table->ColumnsAutoFitWidth += TableGetColumnWidthAuto(table, column);
+                auto_fit_width_for_stretched += column_width_request;
+            if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) && (column->Flags & ImGuiTableColumnFlags_NoResize) != 0)
+                auto_fit_width_for_stretched_min = ImMax(auto_fit_width_for_stretched_min, column_width_request / (column->StretchWeight / table->ColumnsStretchSumWeights));
         }
+    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
+    table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount + auto_fit_width_for_fixed + ImMax(auto_fit_width_for_stretched, auto_fit_width_for_stretched_min);
 
     // Update scroll
     if ((table->Flags & ImGuiTableFlags_ScrollX) == 0 && inner_window != outer_window)

imgui_widgets.cpp

@@ -609,7 +609,7 @@ bool ImGui::ButtonBehavior(const ImRect& bb, ImGuiID id, bool* out_hovered, bool
     if (g.NavActivateDownId == id)
     {
         bool nav_activated_by_code = (g.NavActivateId == id);
-        bool nav_activated_by_inputs = IsNavInputTest(ImGuiNavInput_Activate, (flags & ImGuiButtonFlags_Repeat) ? ImGuiInputReadMode_Repeat : ImGuiInputReadMode_Pressed);
+        bool nav_activated_by_inputs = IsNavInputTest(ImGuiNavInput_Activate, (flags & ImGuiButtonFlags_Repeat) ? ImGuiNavReadMode_Repeat : ImGuiNavReadMode_Pressed);
         if (nav_activated_by_code || nav_activated_by_inputs)
         {
             // Set active id so it can be queried by user via IsItemActive(), equivalent of holding the mouse button.
@@ -2184,7 +2184,7 @@ bool ImGui::DragBehaviorT(ImGuiDataType data_type, TYPE* v, float v_speed, const
     else if (g.ActiveIdSource == ImGuiInputSource_Nav)
     {
         const int decimal_precision = is_floating_point ? ImParseFormatPrecision(format, 3) : 0;
-        adjust_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_RepeatFast, 1.0f / 10.0f, 10.0f)[axis];
+        adjust_delta = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_RepeatFast, 1.0f / 10.0f, 10.0f)[axis];
         v_speed = ImMax(v_speed, GetMinimumStepAtDecimalPrecision(decimal_precision));
     }
     adjust_delta *= v_speed;
@@ -2788,7 +2788,7 @@ bool ImGui::SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_typ
                 g.SliderCurrentAccumDirty = false;
             }
 
-            const ImVec2 input_delta2 = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiInputReadMode_RepeatFast, 0.0f, 0.0f);
+            const ImVec2 input_delta2 = GetNavInputAmount2d(ImGuiNavDirSourceFlags_Keyboard | ImGuiNavDirSourceFlags_PadDPad, ImGuiNavReadMode_RepeatFast, 0.0f, 0.0f);
             float input_delta = (axis == ImGuiAxis_X) ? input_delta2.x : -input_delta2.y;
             if (input_delta != 0.0f)
             {
@@ -4298,8 +4298,8 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
 
         // We allow validate/cancel with Nav source (gamepad) to makes it easier to undo an accidental NavInput press with no keyboard wired, but otherwise it isn't very useful.
         const bool is_validate_enter = IsKeyPressed(ImGuiKey_Enter) || IsKeyPressed(ImGuiKey_KeypadEnter);
-        const bool is_validate_nav = (IsNavInputTest(ImGuiNavInput_Activate, ImGuiInputReadMode_Pressed) && !IsKeyPressed(ImGuiKey_Space)) || IsNavInputTest(ImGuiNavInput_Input, ImGuiInputReadMode_Pressed);
-        const bool is_cancel   = IsKeyPressed(ImGuiKey_Escape) || IsNavInputTest(ImGuiNavInput_Cancel, ImGuiInputReadMode_Pressed);
+        const bool is_validate_nav = (IsNavInputTest(ImGuiNavInput_Activate, ImGuiNavReadMode_Pressed) && !IsKeyPressed(ImGuiKey_Space)) || IsNavInputTest(ImGuiNavInput_Input, ImGuiNavReadMode_Pressed);
+        const bool is_cancel   = IsKeyPressed(ImGuiKey_Escape) || IsNavInputTest(ImGuiNavInput_Cancel, ImGuiNavReadMode_Pressed);
 
         if (IsKeyPressed(ImGuiKey_LeftArrow))                        { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINESTART : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDLEFT : STB_TEXTEDIT_K_LEFT) | k_mask); }
         else if (IsKeyPressed(ImGuiKey_RightArrow))                  { state->OnKeyPressed((is_startend_key_down ? STB_TEXTEDIT_K_LINEEND : is_wordmove_key_down ? STB_TEXTEDIT_K_WORDRIGHT : STB_TEXTEDIT_K_RIGHT) | k_mask); }