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UI - Fixed mouse behaviour when the pointer exits the window

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This commit is contained in:
Emmanuel BENOîT 2017-11-22 08:48:43 +01:00
parent f9a0b94055
commit 0b33acc92a
1 changed files with 5 additions and 3 deletions
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8
imgui_impl_sdl.cc
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@ -257,13 +257,15 @@ void ImGui_ImplSdl_NewFrame(SDL_Window *window ,
// (we already got mouse wheel, keyboard keys & characters from SDL_PollEvent()) // (we already got mouse wheel, keyboard keys & characters from SDL_PollEvent())
int mx, my; int mx, my;
Uint32 mouseMask = SDL_GetMouseState(&mx, &my); Uint32 mouseMask = SDL_GetMouseState(&mx, &my);
static ImVec2 prevMouse{ -FLT_MAX , -FLT_MAX };
if ( mouseLock ) { if ( mouseLock ) {
io.MousePos = mousePos; io.MousePos = mousePos;
} else { } else {
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_FOCUS) if (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_FOCUS) {
io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.) io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
else prevMouse = io.MousePos;
io.MousePos = ImVec2(-1,-1); } else
io.MousePos = prevMouse;
} }
io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame. io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.