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Examples: Mouse cursor handling comments/tweaks to homogenize. (#1495)

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This commit is contained in:
omar
2018-02-20 14:23:22 +01:00
parent d534207622
commit daddd09cd5
5 changed files with 38 additions and 32 deletions
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29
examples/sdl_opengl2_example/imgui_impl_sdl_gl2.cpp
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@ -44,7 +44,7 @@
static Uint64 g_Time = 0;
static bool g_MousePressed[3] = { false, false, false };
static GLuint g_FontTexture = 0;
static SDL_Cursor* g_SdlCursors[ImGuiMouseCursor_Count_] = { 0 };
static SDL_Cursor* g_MouseCursors[ImGuiMouseCursor_Count_] = { 0 };
// OpenGL2 Render function.
// (this used to be set in io.RenderDrawListsFn and called by ImGui::Render(), but you can now call this directly from your main loop)
@ -252,13 +252,13 @@ bool ImGui_ImplSdlGL2_Init(SDL_Window* window)
io.GetClipboardTextFn = ImGui_ImplSdlGL2_GetClipboardText;
io.ClipboardUserData = NULL;
g_SdlCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
g_SdlCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
g_SdlCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
g_SdlCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_SdlCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_SdlCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_SdlCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
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);
g_MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
g_MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
#ifdef _WIN32
SDL_SysWMinfo wmInfo;
@ -274,10 +274,13 @@ bool ImGui_ImplSdlGL2_Init(SDL_Window* window)
void ImGui_ImplSdlGL2_Shutdown()
{
ImGui_ImplSdlGL2_InvalidateDeviceObjects();
// Destroy SDL mouse cursors
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_Count_; cursor_n++)
SDL_FreeCursor(g_SdlCursors[cursor_n]);
SDL_FreeCursor(g_MouseCursors[cursor_n]);
memset(g_MouseCursors, 0, sizeof(g_MouseCursors));
// Destroy OpenGL objects
ImGui_ImplSdlGL2_InvalidateDeviceObjects();
}
void ImGui_ImplSdlGL2_NewFrame(SDL_Window *window)
@ -326,7 +329,7 @@ void ImGui_ImplSdlGL2_NewFrame(SDL_Window *window)
io.MousePos = ImVec2((float)mx, (float)my);
#endif
// Hide OS mouse cursor if ImGui is drawing it
// Update OS/hardware mouse cursor if imgui isn't drawing a software cursor
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
{
@ -334,7 +337,7 @@ void ImGui_ImplSdlGL2_NewFrame(SDL_Window *window)
}
else
{
SDL_SetCursor(g_SdlCursors[cursor]);
SDL_SetCursor(g_MouseCursors[cursor] ? g_MouseCursors[cursor] : g_MouseCursors[ImGuiMouseCursor_Arrow]);
SDL_ShowCursor(1);
}