/// <summary>
/// Sets per-frame data based on the associated window.
/// This is called by Update(float).
/// </summary>
private void SetPerFrameImGuiData(float deltaSeconds)
{
ImGuiIOPtr io = ImGui.GetIO();
io.DisplaySize = new Vector2(
_windowWidth / _scaleFactor.X,
_windowHeight / _scaleFactor.Y);
io.DisplayFramebufferScale = _scaleFactor;
io.DeltaTime = deltaSeconds; // DeltaTime is in seconds.
ImGuiPlatformIOPtr platformIo = ImGui.GetPlatformIO();
platformIo.MainViewport.Pos = new Vector2(_window.X, _window.Y);
platformIo.MainViewport.Size = new Vector2(_window.Width, _window.Height);
}
private static unsafe void SubmitBaseUI()
{
// 1. Show a simple window.
// Tip: if we don't call ImGui.BeginWindow()/ImGui.EndWindow() the widgets automatically appears in a window called "Debug".
ImGui.Begin("Transform Example");
{
ImGui.Checkbox("Calculate By Hand?", ref _transformUIData._byHand);
ImGui.SliderFloat("Uniform Scale", ref _transformUIData._uniformScale, 0.001f, 1.0f, _transformUIData.UniformScale.ToString("0.00000"), 1); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui.SliderFloat2("Translation (X, Y)", ref _transformUIData._translate, -1.0f, 1.0f);
ImGui.SliderFloat("Rotation", ref _transformUIData._rotateZ, -360.0f, 360.0f, _transformUIData.RotateZ.ToString("0.0000"), 1);
}
ImGui.End();
ImGuiIOPtr io = ImGui.GetIO();
SetThing(out io.DeltaTime, 2f);
}
private static unsafe void SubmitUI()
{
// Demo code adapted from the official Dear ImGui demo program:
// https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx11/main.cpp#L172
// 1. Show a simple window.
// Tip: if we don't call ImGui.BeginWindow()/ImGui.EndWindow() the widgets automatically appears in a window called "Debug".
{
ImGui.Text("Hello, world!"); // Display some text (you can use a format string too)
ImGui.SliderFloat("float", ref m_floatValue, 0, 1, m_floatValue.ToString("0.000"), 1); // Edit 1 float using a slider from 0.0f to 1.0f
ImGui.ColorEdit3("clear color", ref m_clearColor); // Edit 3 floats representing a color
ImGui.Text($"Mouse position: {ImGui.GetMousePos()}");
float framerate = ImGui.GetIO().Framerate;
ImGui.Text($"Application average {1000.0f / framerate:0.##} ms/frame ({framerate:0.#} FPS)");
}
ImGuiIOPtr io = ImGui.GetIO();
SetThing(out io.DeltaTime, 2f);
}
/// <summary>
/// Recreates the device texture used to render text.
/// </summary>
public unsafe void RecreateFontDeviceTexture(GraphicsDevice gd)
{
ImGuiIOPtr io = ImGui.GetIO();
//添加中文字体
var songti = @"C:\Windows\Fonts\STSONG.TTF";
io.Fonts.AddFontFromFileTTF(songti, 16f);
//var font= io.FontAtlas.AddDefaultFont();
// Build
fonttex textureData = io.Fonts.GetTexDataAsRGBA32() GetTexDataAsRGBA32();
// Store our identifier
io.Fonts.SetTexID(_fontAtlasID);
_fontTexture = gd.ResourceFactory.CreateTexture(TextureDescription.Texture2D(
(uint)textureData.Width,
(uint)textureData.Height,
1,
1,
PixelFormat.R8_G8_B8_A8_UNorm,
TextureUsage.Sampled));
_fontTexture.Name = "ImGui.NET Font Texture";
gd.UpdateTexture(
_fontTexture,
(IntPtr)textureData.Pixels,
(uint)(textureData.BytesPerPixel * textureData.Width * textureData.Height),
0,
0,
0,
(uint)textureData.Width,
(uint)textureData.Height,
1,
0,
0);
_fontTextureView = gd.ResourceFactory.CreateTextureView(_fontTexture);
io.FontAtlas.ClearTexData();
}
private static void UpdateJoystickDPadState(ImGuiIOPtr io)
{
var dpadXPos = Joystick.GetAxisPosition(JoystickId, _dPadInfo.xAxis);
if (_dPadInfo.xInverted)
{
dpadXPos = -dpadXPos;
}
var dpadYPos = Joystick.GetAxisPosition(JoystickId, _dPadInfo.yAxis);
if (_dPadInfo.yInverted)
{
dpadYPos = -dpadYPos;
}
io.NavInputs[(int)ImGuiNavInput.DpadLeft] = dpadXPos < -_dPadInfo.threshold ? 1f : 0f;
io.NavInputs[(int)ImGuiNavInput.DpadRight] = dpadXPos > _dPadInfo.threshold ? 1f : 0f;
io.NavInputs[(int)ImGuiNavInput.DpadUp] = dpadYPos < -_dPadInfo.threshold ? 1f : 0f;
io.NavInputs[(int)ImGuiNavInput.DpadDown] = dpadYPos > _dPadInfo.threshold ? 1f : 0f;
}
private static void SetKeyMappings()
{
ImGuiIOPtr io = ImGui.GetIO();
io.KeyMap[(int)ImGuiKey.Tab] = (int)Key.Tab;
io.KeyMap[(int)ImGuiKey.LeftArrow] = (int)Key.Left;
io.KeyMap[(int)ImGuiKey.RightArrow] = (int)Key.Right;
io.KeyMap[(int)ImGuiKey.UpArrow] = (int)Key.Up;
io.KeyMap[(int)ImGuiKey.DownArrow] = (int)Key.Down;
io.KeyMap[(int)ImGuiKey.PageUp] = (int)Key.PageUp;
io.KeyMap[(int)ImGuiKey.PageDown] = (int)Key.PageDown;
io.KeyMap[(int)ImGuiKey.Home] = (int)Key.Home;
io.KeyMap[(int)ImGuiKey.End] = (int)Key.End;
io.KeyMap[(int)ImGuiKey.Delete] = (int)Key.Delete;
io.KeyMap[(int)ImGuiKey.Backspace] = (int)Key.BackSpace;
io.KeyMap[(int)ImGuiKey.Enter] = (int)Key.Enter;
io.KeyMap[(int)ImGuiKey.Escape] = (int)Key.Escape;
io.KeyMap[(int)ImGuiKey.A] = (int)Key.A;
io.KeyMap[(int)ImGuiKey.C] = (int)Key.C;
io.KeyMap[(int)ImGuiKey.V] = (int)Key.V;
io.KeyMap[(int)ImGuiKey.X] = (int)Key.X;
io.KeyMap[(int)ImGuiKey.Y] = (int)Key.Y;
io.KeyMap[(int)ImGuiKey.Z] = (int)Key.Z;
}
private static void UpdateJoystickLStickState(ImGuiIOPtr io)
{
var lStickXPos = Joystick.GetAxisPosition(JoystickId, _lStickInfo.xAxis);
if (_lStickInfo.xInverted)
{
lStickXPos = -lStickXPos;
}
var lStickYPos = Joystick.GetAxisPosition(JoystickId, _lStickInfo.yAxis);
if (_lStickInfo.yInverted)
{
lStickYPos = -lStickYPos;
}
if (lStickXPos < -_lStickInfo.threshold)
{
io.NavInputs[(int)ImGuiNavInput.LStickLeft] = MathF.Abs(lStickXPos / 100f);
}
if (lStickXPos > _lStickInfo.threshold)
{
io.NavInputs[(int)ImGuiNavInput.LStickRight] = lStickXPos / 100f;
}
if (lStickYPos < -_lStickInfo.threshold)
{
io.NavInputs[(int)ImGuiNavInput.LStickUp] = MathF.Abs(lStickYPos / 100f);
}
if (lStickYPos > _lStickInfo.threshold)
{
io.NavInputs[(int)ImGuiNavInput.LStickDown] = lStickYPos / 100f;
}
}
private static unsafe void SubmitUI()
{
// Demo code adapted from the official Dear ImGui demo program:
// https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx11/main.cpp#L172
// 1. Show a simple window.
// Tip: if we don't call ImGui.BeginWindow()/ImGui.EndWindow() the widgets automatically appears in a window called "Debug".
{
ImGui.Text("Hello, world!"); // Display some text (you can use a format string too)
ImGui.SliderFloat("float", ref _f, 0, 1, _f.ToString("0.000")); // Edit 1 float using a slider from 0.0f to 1.0f
//ImGui.ColorEdit3("clear color", ref _clearColor); // Edit 3 floats representing a color
ImGui.Text($"Mouse position: {ImGui.GetMousePos()}");
ImGui.Checkbox("Demo Window", ref _showDemoWindow); // Edit bools storing our windows open/close state
ImGui.Checkbox("Another Window", ref _showAnotherWindow);
ImGui.Checkbox("Memory Editor", ref _showMemoryEditor);
if (ImGui.Button("Button")) // Buttons return true when clicked (NB: most widgets return true when edited/activated)
{
_counter++;
}
ImGui.SameLine(0, -1);
ImGui.Text($"counter = {_counter}");
ImGui.DragInt("Draggable Int", ref _dragInt);
float framerate = ImGui.GetIO().Framerate;
ImGui.Text($"Application average {1000.0f / framerate:0.##} ms/frame ({framerate:0.#} FPS)");
}
// 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows.
if (_showAnotherWindow)
{
ImGui.Begin("Another Window", ref _showAnotherWindow);
ImGui.Text("Hello from another window!");
if (ImGui.Button("Close Me"))
{
_showAnotherWindow = false;
}
ImGui.End();
}
// 3. Show the ImGui demo window. Most of the sample code is in ImGui.ShowDemoWindow(). Read its code to learn more about Dear ImGui!
if (_showDemoWindow)
{
// Normally user code doesn't need/want to call this because positions are saved in .ini file anyway.
// Here we just want to make the demo initial state a bit more friendly!
ImGui.SetNextWindowPos(new Vector2(650, 20), ImGuiCond.FirstUseEver);
ImGui.ShowDemoWindow(ref _showDemoWindow);
}
if (ImGui.TreeNode("Tabs"))
{
if (ImGui.TreeNode("Basic"))
{
ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags.None;
if (ImGui.BeginTabBar("MyTabBar", tab_bar_flags))
{
if (ImGui.BeginTabItem("Avocado"))
{
ImGui.Text("This is the Avocado tab!\nblah blah blah blah blah");
ImGui.EndTabItem();
}
if (ImGui.BeginTabItem("Broccoli"))
{
ImGui.Text("This is the Broccoli tab!\nblah blah blah blah blah");
ImGui.EndTabItem();
}
if (ImGui.BeginTabItem("Cucumber"))
{
ImGui.Text("This is the Cucumber tab!\nblah blah blah blah blah");
ImGui.EndTabItem();
}
ImGui.EndTabBar();
}
ImGui.Separator();
ImGui.TreePop();
}
if (ImGui.TreeNode("Advanced & Close Button"))
{
// Expose a couple of the available flags. In most cases you may just call BeginTabBar() with no flags (0).
ImGui.CheckboxFlags("ImGuiTabBarFlags_Reorderable", ref s_tab_bar_flags, (uint)ImGuiTabBarFlags.Reorderable);
ImGui.CheckboxFlags("ImGuiTabBarFlags_AutoSelectNewTabs", ref s_tab_bar_flags, (uint)ImGuiTabBarFlags.AutoSelectNewTabs);
ImGui.CheckboxFlags("ImGuiTabBarFlags_NoCloseWithMiddleMouseButton", ref s_tab_bar_flags, (uint)ImGuiTabBarFlags.NoCloseWithMiddleMouseButton);
if ((s_tab_bar_flags & (uint)ImGuiTabBarFlags.FittingPolicyMask) == 0)
{
s_tab_bar_flags |= (uint)ImGuiTabBarFlags.FittingPolicyDefault;
}
if (ImGui.CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", ref s_tab_bar_flags, (uint)ImGuiTabBarFlags.FittingPolicyResizeDown))
{
s_tab_bar_flags &= ~((uint)ImGuiTabBarFlags.FittingPolicyMask ^ (uint)ImGuiTabBarFlags.FittingPolicyResizeDown);
}
if (ImGui.CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", ref s_tab_bar_flags, (uint)ImGuiTabBarFlags.FittingPolicyScroll))
{
s_tab_bar_flags &= ~((uint)ImGuiTabBarFlags.FittingPolicyMask ^ (uint)ImGuiTabBarFlags.FittingPolicyScroll);
}
// Tab Bar
string[] names = { "Artichoke", "Beetroot", "Celery", "Daikon" };
for (int n = 0; n < s_opened.Length; n++)
{
if (n > 0)
{
ImGui.SameLine();
}
ImGui.Checkbox(names[n], ref s_opened[n]);
}
// Passing a bool* to BeginTabItem() is similar to passing one to Begin(): the underlying bool will be set to false when the tab is closed.
if (ImGui.BeginTabBar("MyTabBar", (ImGuiTabBarFlags)s_tab_bar_flags))
{
for (int n = 0; n < s_opened.Length; n++)
{
if (s_opened[n] && ImGui.BeginTabItem(names[n], ref s_opened[n]))
{
ImGui.Text($"This is the {names[n]} tab!");
if ((n & 1) != 0)
{
ImGui.Text("I am an odd tab.");
}
ImGui.EndTabItem();
}
}
ImGui.EndTabBar();
}
ImGui.Separator();
ImGui.TreePop();
}
ImGui.TreePop();
}
ImGuiIOPtr io = ImGui.GetIO();
SetThing(out io.DeltaTime, 2f);
if (_showMemoryEditor)
{
_memoryEditor.Draw("Memory Editor", _memoryEditorData, _memoryEditorData.Length);
}
}
private void RenderImDrawData(ImDrawDataPtr draw_data, GraphicsDevice gd, CommandList cl)
{
uint vertexOffsetInVertices = 0;
uint indexOffsetInElements = 0;
if (draw_data.CmdListsCount == 0)
{
return;
}
uint totalVBSize = (uint)(draw_data.TotalVtxCount * Unsafe.SizeOf <ImDrawVert>());
if (totalVBSize > _vertexBuffer.SizeInBytes)
{
gd.DisposeWhenIdle(_vertexBuffer);
_vertexBuffer = gd.ResourceFactory.CreateBuffer(new BufferDescription((uint)(totalVBSize * 1.5f), BufferUsage.VertexBuffer | BufferUsage.Dynamic));
}
uint totalIBSize = (uint)(draw_data.TotalIdxCount * sizeof(ushort));
if (totalIBSize > _indexBuffer.SizeInBytes)
{
gd.DisposeWhenIdle(_indexBuffer);
_indexBuffer = gd.ResourceFactory.CreateBuffer(new BufferDescription((uint)(totalIBSize * 1.5f), BufferUsage.IndexBuffer | BufferUsage.Dynamic));
}
for (int i = 0; i < draw_data.CmdListsCount; i++)
{
ImDrawListPtr cmd_list = draw_data.CmdListsRange[i];
cl.UpdateBuffer(
_vertexBuffer,
vertexOffsetInVertices * (uint)Unsafe.SizeOf <ImDrawVert>(),
cmd_list.VtxBuffer.Data,
(uint)(cmd_list.VtxBuffer.Size * Unsafe.SizeOf <ImDrawVert>()));
cl.UpdateBuffer(
_indexBuffer,
indexOffsetInElements * sizeof(ushort),
cmd_list.IdxBuffer.Data,
(uint)(cmd_list.IdxBuffer.Size * sizeof(ushort)));
vertexOffsetInVertices += (uint)cmd_list.VtxBuffer.Size;
indexOffsetInElements += (uint)cmd_list.IdxBuffer.Size;
}
// Setup orthographic projection matrix into our constant buffer
ImGuiIOPtr io = ImGui.GetIO();
Matrix4x4 mvp = Matrix4x4.CreateOrthographicOffCenter(
0f,
io.DisplaySize.X,
io.DisplaySize.Y,
0.0f,
-1.0f,
1.0f);
_gd.UpdateBuffer(_projMatrixBuffer, 0, ref mvp);
cl.SetVertexBuffer(0, _vertexBuffer);
cl.SetIndexBuffer(_indexBuffer, IndexFormat.UInt16);
cl.SetPipeline(_pipeline);
cl.SetGraphicsResourceSet(0, _mainResourceSet);
draw_data.ScaleClipRects(io.DisplayFramebufferScale);
// Render command lists
int vtx_offset = 0;
int idx_offset = 0;
for (int n = 0; n < draw_data.CmdListsCount; n++)
{
ImDrawListPtr cmd_list = draw_data.CmdListsRange[n];
for (int cmd_i = 0; cmd_i < cmd_list.CmdBuffer.Size; cmd_i++)
{
ImDrawCmdPtr pcmd = cmd_list.CmdBuffer[cmd_i];
if (pcmd.UserCallback != IntPtr.Zero)
{
throw new NotImplementedException();
}
else
{
if (pcmd.TextureId != IntPtr.Zero)
{
if (pcmd.TextureId == _fontAtlasID)
{
cl.SetGraphicsResourceSet(1, _fontTextureResourceSet);
}
else
{
cl.SetGraphicsResourceSet(1, GetImageResourceSet(pcmd.TextureId));
}
}
cl.SetScissorRect(
0,
(uint)pcmd.ClipRect.X,
(uint)pcmd.ClipRect.Y,
(uint)(pcmd.ClipRect.Z - pcmd.ClipRect.X),
(uint)(pcmd.ClipRect.W - pcmd.ClipRect.Y));
cl.DrawIndexed(pcmd.ElemCount, 1, (uint)idx_offset, vtx_offset, 0);
}
idx_offset += (int)pcmd.ElemCount;
}
vtx_offset += cmd_list.VtxBuffer.Size;
}
}
private void UpdateImGuiInput(InputSnapshot snapshot)
{
ImGuiIOPtr io = ImGui.GetIO();
Vector2 mousePosition = snapshot.MousePosition;
// Determine if any of the mouse buttons were pressed during this snapshot period, even if they are no longer held.
bool leftPressed = false;
bool middlePressed = false;
bool rightPressed = false;
foreach (MouseEvent me in snapshot.MouseEvents)
{
if (me.Down)
{
switch (me.MouseButton)
{
case MouseButton.Left:
leftPressed = true;
break;
case MouseButton.Middle:
middlePressed = true;
break;
case MouseButton.Right:
rightPressed = true;
break;
}
}
}
io.MouseDown[0] = leftPressed || snapshot.IsMouseDown(MouseButton.Left);
io.MouseDown[1] = rightPressed || snapshot.IsMouseDown(MouseButton.Right);
io.MouseDown[2] = middlePressed || snapshot.IsMouseDown(MouseButton.Middle);
io.MousePos = mousePosition;
io.MouseWheel = snapshot.WheelDelta;
IReadOnlyList <char> keyCharPresses = snapshot.KeyCharPresses;
for (int i = 0; i < keyCharPresses.Count; i++)
{
char c = keyCharPresses[i];
io.AddInputCharacter(c);
}
IReadOnlyList <KeyEvent> keyEvents = snapshot.KeyEvents;
for (int i = 0; i < keyEvents.Count; i++)
{
KeyEvent keyEvent = keyEvents[i];
io.KeysDown[(int)keyEvent.Key] = keyEvent.Down;
if (keyEvent.Key == Key.ControlLeft)
{
_controlDown = keyEvent.Down;
}
if (keyEvent.Key == Key.ShiftLeft)
{
_shiftDown = keyEvent.Down;
}
if (keyEvent.Key == Key.AltLeft)
{
_altDown = keyEvent.Down;
}
if (keyEvent.Key == Key.WinLeft)
{
_winKeyDown = keyEvent.Down;
}
}
io.KeyCtrl = _controlDown;
io.KeyAlt = _altDown;
io.KeyShift = _shiftDown;
io.KeySuper = _winKeyDown;
}
private static void UpdateJoystickActionState(ImGuiIOPtr io, ImGuiNavInput action)
{
var isPressed = Joystick.IsButtonPressed(JoystickId, _joystickMapping[(int)action]);
io.NavInputs[(int)action] = isPressed ? 1f : 0f;
}
private static extern void RenderDrawLists(ImDrawDataPtr drawData, ImGuiIOPtr io);
private static unsafe void SubmitUI()
{
// Demo code adapted from the official Dear ImGui demo program:
// https://github.com/ocornut/imgui/blob/master/examples/example_win32_directx11/main.cpp#L172
// 1. Show a simple window.
// Tip: if we don't call ImGui.BeginWindow()/ImGui.EndWindow() the widgets automatically appears in a window called "Debug".
{
ImGui.Text("Hello, world!"); // Display some text (you can use a format string too)
ImGui.SliderFloat("float", ref _f, 0, 1, _f.ToString("0.000"), 1); // Edit 1 float using a slider from 0.0f to 1.0f
//ImGui.ColorEdit3("clear color", ref _clearColor); // Edit 3 floats representing a color
if (ImGui.InputTextMultiline("TestLabel", ref _testInput, ushort.MaxValue, new Vector2(200, 200)))
{
}
ImGui.Text($"Mouse position: {ImGui.GetMousePos()}");
ImGui.Text($"Mouse down: {ImGui.GetIO().MouseDown[0]}");
ImGui.Checkbox("Demo Window", ref _showDemoWindow); // Edit bools storing our windows open/close state
ImGui.Checkbox("Another Window", ref _showAnotherWindow);
ImGui.Checkbox("Memory Editor", ref _showMemoryEditor);
if (ImGui.Button("Button")) // Buttons return true when clicked (NB: most widgets return true when edited/activated)
{
_counter++;
}
ImGui.SameLine(0, -1);
ImGui.Text($"counter = {_counter}");
ImGui.DragInt("Draggable Int", ref _dragInt);
float framerate = ImGui.GetIO().Framerate;
ImGui.Text($"Application average {1000.0f / framerate:0.##} ms/frame ({framerate:0.#} FPS)");
}
// 2. Show another simple window. In most cases you will use an explicit Begin/End pair to name your windows.
if (_showAnotherWindow)
{
ImGui.Begin("Another Window", ref _showAnotherWindow);
ImGui.Text("Hello from another window!");
if (ImGui.Button("Close Me"))
{
_showAnotherWindow = false;
}
ImGui.End();
}
// 3. Show the ImGui demo window. Most of the sample code is in ImGui.ShowDemoWindow(). Read its code to learn more about Dear ImGui!
if (_showDemoWindow)
{
// Normally user code doesn't need/want to call this because positions are saved in .ini file anyway.
// Here we just want to make the demo initial state a bit more friendly!
ImGui.SetNextWindowPos(new Vector2(650, 20), ImGuiCond.FirstUseEver);
ImGui.ShowDemoWindow(ref _showDemoWindow);
}
ImGuiIOPtr io = ImGui.GetIO();
SetThing(out io.DeltaTime, 2f);
if (_showMemoryEditor)
{
_memoryEditor.Draw("Memory Editor", _memoryEditorData, _memoryEditorData.Length);
}
}
/// <summary>
/// Constructs a new ImGuiController.
/// </summary>
public ImGuiController(GraphicsDevice gd, Sdl2Window window, OutputDescription outputDescription, int width, int height)
{
_gd = gd;
_window = window;
_windowWidth = width;
_windowHeight = height;
IntPtr context = ImGui.CreateContext();
ImGui.SetCurrentContext(context);
ImGuiIOPtr io = ImGui.GetIO();
io.ConfigFlags |= ImGuiConfigFlags.DockingEnable;
io.ConfigFlags |= ImGuiConfigFlags.ViewportsEnable;
ImGuiPlatformIOPtr platformIO = ImGui.GetPlatformIO();
ImGuiViewportPtr mainViewport = platformIO.MainViewport;
_mainViewportWindow = new VeldridImGuiWindow(gd, mainViewport, _window);
mainViewport.PlatformHandle = window.Handle;
_createWindow = CreateWindow;
_destroyWindow = DestroyWindow;
_getWindowPos = GetWindowPos;
_showWindow = ShowWindow;
_setWindowPos = SetWindowPos;
_setWindowSize = SetWindowSize;
_getWindowSize = GetWindowSize;
_setWindowFocus = SetWindowFocus;
_getWindowFocus = GetWindowFocus;
_getWindowMinimized = GetWindowMinimized;
_setWindowTitle = SetWindowTitle;
platformIO.Platform_CreateWindow = Marshal.GetFunctionPointerForDelegate(_createWindow);
platformIO.Platform_DestroyWindow = Marshal.GetFunctionPointerForDelegate(_destroyWindow);
platformIO.Platform_ShowWindow = Marshal.GetFunctionPointerForDelegate(_showWindow);
platformIO.Platform_SetWindowPos = Marshal.GetFunctionPointerForDelegate(_setWindowPos);
platformIO.Platform_SetWindowSize = Marshal.GetFunctionPointerForDelegate(_setWindowSize);
platformIO.Platform_SetWindowFocus = Marshal.GetFunctionPointerForDelegate(_setWindowFocus);
platformIO.Platform_GetWindowFocus = Marshal.GetFunctionPointerForDelegate(_getWindowFocus);
platformIO.Platform_GetWindowMinimized = Marshal.GetFunctionPointerForDelegate(_getWindowMinimized);
platformIO.Platform_SetWindowTitle = Marshal.GetFunctionPointerForDelegate(_setWindowTitle);
platformIO.Platform_GetWindowPos = Marshal.GetFunctionPointerForDelegate(_getWindowPos);
platformIO.Platform_GetWindowSize = Marshal.GetFunctionPointerForDelegate(_getWindowSize);
unsafe
{
io.NativePtr->BackendPlatformName = (byte *)new FixedAsciiString("Veldrid.SDL2 Backend").DataPtr;
}
io.BackendFlags |= ImGuiBackendFlags.HasMouseCursors;
io.BackendFlags |= ImGuiBackendFlags.HasSetMousePos;
io.BackendFlags |= ImGuiBackendFlags.PlatformHasViewports;
io.BackendFlags |= ImGuiBackendFlags.RendererHasViewports;
io.Fonts.AddFontDefault();
CreateDeviceResources(gd, outputDescription);
SetKeyMappings();
SetPerFrameImGuiData(1f / 60f);
UpdateMonitors();
ImGui.NewFrame();
_frameBegun = true;
}
private void UpdateImGuiInput(InputSnapshot snapshot)
{
ImGuiIOPtr io = ImGui.GetIO();
// Determine if any of the mouse buttons were pressed during this snapshot period, even if they are no longer held.
bool leftPressed = false;
bool middlePressed = false;
bool rightPressed = false;
foreach (MouseEvent me in snapshot.MouseEvents)
{
if (me.Down)
{
switch (me.MouseButton)
{
case MouseButton.Left:
leftPressed = true;
break;
case MouseButton.Middle:
middlePressed = true;
break;
case MouseButton.Right:
rightPressed = true;
break;
}
}
}
io.MouseDown[0] = leftPressed || snapshot.IsMouseDown(MouseButton.Left);
io.MouseDown[1] = middlePressed || snapshot.IsMouseDown(MouseButton.Right);
io.MouseDown[2] = rightPressed || snapshot.IsMouseDown(MouseButton.Middle);
if (p_sdl_GetGlobalMouseState == null)
{
p_sdl_GetGlobalMouseState = Sdl2Native.LoadFunction <SDL_GetGlobalMouseState_t>("SDL_GetGlobalMouseState");
}
if ((io.ConfigFlags & ImGuiConfigFlags.ViewportsEnable) != 0)
{
int x, y;
unsafe
{
uint buttons = p_sdl_GetGlobalMouseState(&x, &y);
io.MouseDown[0] = (buttons & 0b00001) != 0;
io.MouseDown[1] = (buttons & 0b00010) != 0;
io.MouseDown[2] = (buttons & 0b00100) != 0;
io.MouseDown[3] = (buttons & 0b01000) != 0;
io.MouseDown[4] = (buttons & 0b10000) != 0;
}
io.MousePos = new Vector2(x, y);
}
else
{
io.MousePos = snapshot.MousePosition;
}
io.MouseWheel = snapshot.WheelDelta;
IReadOnlyList <char> keyCharPresses = snapshot.KeyCharPresses;
for (int i = 0; i < keyCharPresses.Count; i++)
{
char c = keyCharPresses[i];
io.AddInputCharacter(c);
}
IReadOnlyList <KeyEvent> keyEvents = snapshot.KeyEvents;
for (int i = 0; i < keyEvents.Count; i++)
{
io.KeysDown[(int)keyEvents[i].Key] = keyEvents[i].Down;
}
io.KeyCtrl = io.KeysDown[(int)Key.ControlLeft] || io.KeysDown[(int)Key.ControlRight];
io.KeyAlt = io.KeysDown[(int)Key.AltLeft] || io.KeysDown[(int)Key.AltRight];
io.KeyShift = io.KeysDown[(int)Key.ShiftLeft] || io.KeysDown[(int)Key.ShiftRight];
io.KeySuper = io.KeysDown[(int)Key.WinLeft] || io.KeysDown[(int)Key.WinRight];
ImVector <ImGuiViewportPtr> viewports = ImGui.GetPlatformIO().Viewports;
for (int i = 1; i < viewports.Size; i++)
{
ImGuiViewportPtr v = viewports[i];
VeldridImGuiWindow window = ((VeldridImGuiWindow)GCHandle.FromIntPtr(v.PlatformUserData).Target);
window.Update();
}
}
