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Merge branch 'master' into docking

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# Conflicts:
#	backends/imgui_impl_glfw.cpp
#	backends/imgui_impl_osx.h
#	backends/imgui_impl_osx.mm
#	backends/imgui_impl_sdl.cpp
#	backends/imgui_impl_win32.cpp
This commit is contained in:
ocornut
2022-01-13 18:36:23 +01:00
parent acfc7798fd 200a8f1ea2
commit 0647ba3bad
20 changed files with 326 additions and 211 deletions
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106
backends/imgui_impl_win32.cpp
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@ -19,6 +19,7 @@
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#include <windowsx.h> // GET_X_LPARAM(), GET_Y_LPARAM()
#include <tchar.h>
#include <dwmapi.h>
@ -34,7 +35,9 @@ typedef DWORD (WINAPI *PFN_XInputGetState)(DWORD, XINPUT_STATE*);
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2021-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2022-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2022-01-12: Update mouse inputs using WM_MOUSEMOVE/WM_MOUSELEAVE + fallback to provide it when focused but not hovered/captured. More standard and will allow us to pass it to future input queue API.
// 2022-01-12: Maintain our own copy of MouseButtonsDown mask instead of using ImGui::IsAnyMouseDown() which will be obsoleted.
// 2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
// 2021-12-16: Inputs: Fill VK_LCONTROL/VK_RCONTROL/VK_LSHIFT/VK_RSHIFT/VK_LMENU/VK_RMENU for completeness.
// 2021-08-17: Calling io.AddFocusEvent() on WM_SETFOCUS/WM_KILLFOCUS messages.
@ -81,6 +84,7 @@ struct ImGui_ImplWin32_Data
HWND hWnd;
HWND MouseHwnd;
bool MouseTracked;
int MouseButtonsDown;
INT64 Time;
INT64 TicksPerSecond;
ImGuiMouseCursor LastMouseCursor;
@ -256,54 +260,41 @@ static void ImGui_ImplWin32_UpdateKeyModifiers()
// This code supports multi-viewports (multiple OS Windows mapped into different Dear ImGui viewports)
// Because of that, it is a little more complicated than your typical single-viewport binding code!
static void ImGui_ImplWin32_UpdateMousePos()
static void ImGui_ImplWin32_UpdateMouseData()
{
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(bd->hWnd != 0);
const ImVec2 mouse_pos_prev = io.MousePos;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
io.MouseHoveredViewport = 0;
// Obtain focused and hovered window. We forward mouse input when focused or when hovered (and no other window is capturing)
HWND focused_window = ::GetForegroundWindow();
HWND hovered_window = bd->MouseHwnd;
HWND mouse_window = NULL;
if (hovered_window && (hovered_window == bd->hWnd || ::IsChild(hovered_window, bd->hWnd) || ImGui::FindViewportByPlatformHandle((void*)hovered_window)))
mouse_window = hovered_window;
else if (focused_window && (focused_window == bd->hWnd || ::IsChild(focused_window, bd->hWnd) || ImGui::FindViewportByPlatformHandle((void*)focused_window)))
mouse_window = focused_window;
if (mouse_window == NULL)
return;
// Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
// (When multi-viewports are enabled, all Dear ImGui positions are same as OS positions)
if (io.WantSetMousePos)
{
POINT pos = { (int)mouse_pos_prev.x, (int)mouse_pos_prev.y };
if ((io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) == 0)
::ClientToScreen(mouse_window, &pos);
::SetCursorPos(pos.x, pos.y);
}
// Set Dear ImGui mouse position from OS position
POINT mouse_screen_pos;
if (!::GetCursorPos(&mouse_screen_pos))
return;
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
bool has_mouse_screen_pos = ::GetCursorPos(&mouse_screen_pos) != 0;
HWND focused_window = ::GetForegroundWindow();
const bool is_app_focused = (focused_window && (focused_window == bd->hWnd || ::IsChild(focused_window, bd->hWnd) || ImGui::FindViewportByPlatformHandle((void*)focused_window)));
if (is_app_focused)
{
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
// This is the position you can get with ::GetCursorPos() or WM_MOUSEMOVE + ::ClientToScreen(). In theory adding viewport->Pos to a client position would also be the same.
io.MousePos = ImVec2((float)mouse_screen_pos.x, (float)mouse_screen_pos.y);
}
else
{
// Single viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
// This is the position you can get with ::GetCursorPos() + ::ScreenToClient() or WM_MOUSEMOVE.
POINT mouse_client_pos = mouse_screen_pos;
::ScreenToClient(bd->hWnd, &mouse_client_pos);
io.MousePos = ImVec2((float)mouse_client_pos.x, (float)mouse_client_pos.y);
// (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
// When multi-viewports are enabled, all Dear ImGui positions are same as OS positions.
if (io.WantSetMousePos)
{
POINT pos = { (int)io.MousePos.x, (int)io.MousePos.y };
if ((io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) == 0)
::ClientToScreen(focused_window, &pos);
::SetCursorPos(pos.x, pos.y);
}
// (Optional) Fallback to provide mouse position when focused (WM_MOUSEMOVE already provides this when hovered or captured)
if (!io.WantSetMousePos && !bd->MouseTracked && has_mouse_screen_pos)
{
// Single viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
// (This is the position you can get with ::GetCursorPos() + ::ScreenToClient() or WM_MOUSEMOVE.)
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
// (This is the position you can get with ::GetCursorPos() or WM_MOUSEMOVE + ::ClientToScreen(). In theory adding viewport->Pos to a client position would also be the same.)
POINT mouse_pos = mouse_screen_pos;
if (!(io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable))
::ScreenToClient(bd->hWnd, &mouse_pos);
io.MousePos = ImVec2((float)mouse_pos.x, (float)mouse_pos.y);
}
}
// (Optional) When using multiple viewports: set io.MouseHoveredViewport to the viewport the OS mouse cursor is hovering.
@ -312,10 +303,12 @@ static void ImGui_ImplWin32_UpdateMousePos()
// - This is _regardless_ of whether another viewport is focused or being dragged from.
// If ImGuiBackendFlags_HasMouseHoveredViewport is not set by the backend, imgui will ignore this field and infer the information by relying on the
// rectangles and last focused time of every viewports it knows about. It will be unaware of foreign windows that may be sitting between or over your windows.
if (HWND hovered_hwnd = ::WindowFromPoint(mouse_screen_pos))
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle((void*)hovered_hwnd))
if ((viewport->Flags & ImGuiViewportFlags_NoInputs) == 0) // FIXME: We still get our NoInputs window with WM_NCHITTEST/HTTRANSPARENT code when decorated?
io.MouseHoveredViewport = viewport->ID;
io.MouseHoveredViewport = 0;
if (has_mouse_screen_pos)
if (HWND hovered_hwnd = ::WindowFromPoint(mouse_screen_pos))
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle((void*)hovered_hwnd))
if ((viewport->Flags & ImGuiViewportFlags_NoInputs) == 0) // FIXME: We still get our NoInputs window with WM_NCHITTEST/HTTRANSPARENT code when decorated?
io.MouseHoveredViewport = viewport->ID;
}
// Gamepad navigation mapping
@ -415,15 +408,15 @@ void ImGui_ImplWin32_NewFrame()
io.DeltaTime = (float)(current_time - bd->Time) / bd->TicksPerSecond;
bd->Time = current_time;
// Update OS mouse position
ImGui_ImplWin32_UpdateMouseData();
// Process workarounds for known Windows key handling issues
ImGui_ImplWin32_ProcessKeyEventsWorkarounds();
// Update key modifiers
ImGui_ImplWin32_UpdateKeyModifiers();
// Update OS mouse position
ImGui_ImplWin32_UpdateMousePos();
// Update OS mouse cursor with the cursor requested by imgui
ImGuiMouseCursor mouse_cursor = io.MouseDrawCursor ? ImGuiMouseCursor_None : ImGui::GetMouseCursor();
if (bd->LastMouseCursor != mouse_cursor)
@ -583,6 +576,7 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
switch (msg)
{
case WM_MOUSEMOVE:
{
// We need to call TrackMouseEvent in order to receive WM_MOUSELEAVE events
bd->MouseHwnd = hwnd;
if (!bd->MouseTracked)
@ -591,11 +585,17 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
::TrackMouseEvent(&tme);
bd->MouseTracked = true;
}
POINT mouse_pos = { (LONG)GET_X_LPARAM(lParam), (LONG)GET_Y_LPARAM(lParam) };
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
::ClientToScreen(hwnd, &mouse_pos);
io.MousePos = ImVec2((float)mouse_pos.x, (float)mouse_pos.y);
break;
}
case WM_MOUSELEAVE:
if (bd->MouseHwnd == hwnd)
bd->MouseHwnd = NULL;
bd->MouseTracked = false;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
break;
case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
@ -607,8 +607,9 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
if (msg == WM_RBUTTONDOWN || msg == WM_RBUTTONDBLCLK) { button = 1; }
if (msg == WM_MBUTTONDOWN || msg == WM_MBUTTONDBLCLK) { button = 2; }
if (msg == WM_XBUTTONDOWN || msg == WM_XBUTTONDBLCLK) { button = (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) ? 3 : 4; }
if (!ImGui::IsAnyMouseDown() && ::GetCapture() == NULL)
if (bd->MouseButtonsDown == 0 && ::GetCapture() == NULL)
::SetCapture(hwnd);
bd->MouseButtonsDown |= 1 << button;
io.MouseDown[button] = true;
return 0;
}
@ -622,9 +623,10 @@ IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hwnd, UINT msg, WPARA
if (msg == WM_RBUTTONUP) { button = 1; }
if (msg == WM_MBUTTONUP) { button = 2; }
if (msg == WM_XBUTTONUP) { button = (GET_XBUTTON_WPARAM(wParam) == XBUTTON1) ? 3 : 4; }
io.MouseDown[button] = false;
if (!ImGui::IsAnyMouseDown() && ::GetCapture() == hwnd)
bd->MouseButtonsDown &= ~(1 << button);
if (bd->MouseButtonsDown == 0 && ::GetCapture() == hwnd)
::ReleaseCapture();
io.MouseDown[button] = false;
return 0;
}
case WM_MOUSEWHEEL: