Drezil/imgui
1
0
Fork 0
mirror of https://github.com/Drezil/imgui.git synced 2025-07-06 04:58:47 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'master' into docking

Browse Source 
# Conflicts:
#	backends/imgui_impl_glfw.cpp
#	backends/imgui_impl_sdl.cpp
#	backends/imgui_impl_win32.cpp
#	imgui.cpp
This commit is contained in:
ocornut
2021-08-02 15:04:45 +02:00
parent 7bfc379a23 db686ad522
commit f9b5168fb3
11 changed files with 280 additions and 225 deletions
Download Patch File Download Diff File Expand all files Collapse all files

87
backends/imgui_impl_win32.cpp
View File

@ -35,6 +35,7 @@ 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.
// 2021-07-29: Inputs: MousePos is correctly reported when the host platform window is hovered but not focused (using TrackMouseEvent() to receive WM_MOUSELEAVE events).
// 2021-06-29: Reorganized backend to pull data from a single structure to facilitate usage with multiple-contexts (all g_XXXX access changed to bd->XXXX).
// 2021-06-08: Fix ImGui_ImplWin32_EnableDpiAwareness() and ImGui_ImplWin32_GetDpiScaleForMonitor() to handle Windows 8.1/10 features without a manifest (per-monitor DPI, and properly calls SetProcessDpiAwareness() on 8.1).
// 2021-03-23: Inputs: Clearing keyboard down array when losing focus (WM_KILLFOCUS).
@ -75,6 +76,8 @@ static void ImGui_ImplWin32_UpdateMonitors();
struct ImGui_ImplWin32_Data
{
HWND hWnd;
HWND MouseHwnd;
bool MouseTracked;
INT64 Time;
INT64 TicksPerSecond;
ImGuiMouseCursor LastMouseCursor;
@ -235,49 +238,52 @@ static bool ImGui_ImplWin32_UpdateMouseCursor()
// Because of that, it is a little more complicated than your typical single-viewport binding code!
static void ImGui_ImplWin32_UpdateMousePos()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplWin32_Data* bd = ImGui_ImplWin32_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(bd->hWnd != 0);
// Set OS mouse position if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
// (When multi-viewports are enabled, all 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(bd->hWnd, &pos);
::SetCursorPos(pos.x, pos.y);
}
const ImVec2 mouse_pos_prev = io.MousePos;
io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
io.MouseHoveredViewport = 0;
// Set imgui mouse position
// 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 && mouse_window != NULL)
{
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 (HWND focused_hwnd = ::GetForegroundWindow())
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
if (::IsChild(focused_hwnd, bd->hWnd))
focused_hwnd = bd->hWnd;
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
// 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(). In theory adding viewport->Pos is also the reverse operation of doing ScreenToClient().
if (ImGui::FindViewportByPlatformHandle((void*)focused_hwnd) != NULL)
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 from WM_MOUSEMOVE.
if (focused_hwnd == bd->hWnd)
{
POINT mouse_client_pos = mouse_screen_pos;
::ScreenToClient(focused_hwnd, &mouse_client_pos);
io.MousePos = ImVec2((float)mouse_client_pos.x, (float)mouse_client_pos.y);
}
}
// 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) When using multiple viewports: set io.MouseHoveredViewport to the viewport the OS mouse cursor is hovering.
@ -441,6 +447,21 @@ 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)
{
TRACKMOUSEEVENT tme = { sizeof(tme), TME_LEAVE, hwnd, 0 };
::TrackMouseEvent(&tme);
bd->MouseTracked = true;
}
break;
case WM_MOUSELEAVE:
if (bd->MouseHwnd == hwnd)
bd->MouseHwnd = NULL;
bd->MouseTracked = false;
break;
case WM_LBUTTONDOWN: case WM_LBUTTONDBLCLK:
case WM_RBUTTONDOWN: case WM_RBUTTONDBLCLK:
case WM_MBUTTONDOWN: case WM_MBUTTONDBLCLK: