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Backends: SDL: Wayland: Use SDL_GetMouseState (amend 78ff147) (#2800, 2802)

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This commit is contained in:
omar 2019-12-17 14:34:18 +01:00
parent 78ff147181
commit 0f7105e156
2 changed files with 9 additions and 6 deletions
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2
docs/CHANGELOG.txt
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@ -71,6 +71,8 @@ Other Changes:
selection, those new api can fill a gap. [@ShironekoBen]
- Backends: GLFW, SDL, Win32, OSX, Allegro: Added support for ImGuiMouseCursor_NotAllowed. [@rokups]
- Backends: GLFW: Added support for the missing mouse cursors newly added in GLFW 3.4+. [@rokups]
- Backends: SDL: Wayland: use SDL_GetMouseState (because there is no global mouse state available
on Wayland). (#2800, #2802) [@NeroBurner]
- Examples: Explicitly adding -DIMGUI_IMPL_OPENGL_LOADER_GL3W to Makefile to match linking
settings (otherwise if another loader such as Glew is accessible, the opengl3 backend might
automatically use it). [#2919, #2798]

13
examples/imgui_impl_sdl.cpp
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@ -17,7 +17,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2019-12-17: Inputs: Use SDL_GetMouseState, because there is no global mouse state on Wayland.
// 2019-12-17: Inputs: On Wayland, use SDL_GetMouseState (because there is no global mouse state).
// 2019-12-05: Inputs: Added support for ImGuiMouseCursor_NotAllowed mouse cursor.
// 2019-07-21: Inputs: Added mapping for ImGuiKey_KeyPadEnter.
// 2019-04-23: Inputs: Added support for SDL_GameController (if ImGuiConfigFlags_NavEnableGamepad is set by user application).
@ -61,7 +61,7 @@ static Uint64 g_Time = 0;
static bool g_MousePressed[3] = { false, false, false };
static SDL_Cursor* g_MouseCursors[ImGuiMouseCursor_COUNT] = {};
static char* g_ClipboardTextData = NULL;
static bool g_VideoDriverIsWayland = false;
static bool g_MouseCanUseGlobalState = true;
static const char* ImGui_ImplSDL2_GetClipboardText(void*)
{
@ -126,9 +126,6 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
{
g_Window = window;
// Check and store if we are on Wayland to not check on every frame.
g_VideoDriverIsWayland = strncmp(SDL_GetCurrentVideoDriver(), "wayland", 7) == 0;
// Setup back-end capabilities flags
ImGuiIO& io = ImGui::GetIO();
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
@ -163,6 +160,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
io.GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
io.ClipboardUserData = NULL;
// Load mouse cursors
g_MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
@ -173,6 +171,9 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
g_MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
g_MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
// Check and store if we are on Wayland
g_MouseCanUseGlobalState = strncmp(SDL_GetCurrentVideoDriver(), "wayland", 7) != 0;
#ifdef _WIN32
SDL_SysWMinfo wmInfo;
SDL_VERSION(&wmInfo.version);
@ -243,7 +244,7 @@ static void ImGui_ImplSDL2_UpdateMousePosAndButtons()
SDL_Window* focused_window = SDL_GetKeyboardFocus();
if (g_Window == focused_window)
{
if (!g_VideoDriverIsWayland)
if (g_MouseCanUseGlobalState)
{
// SDL_GetMouseState() gives mouse position seemingly based on the last window entered/focused(?)
// The creation of a new windows at runtime and SDL_CaptureMouse both seems to severely mess up with that, so we retrieve that position globally.