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Examples: GLFW: Added mouse cursors support (#1495)

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This commit is contained in:
omar 2018-02-19 22:29:52 +01:00
parent 9fdf72e42b
commit e660d92fa5
2 changed files with 28 additions and 1 deletions
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26
examples/imgui_impl_glfw.cpp
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@ -13,6 +13,7 @@
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2018-XX-XX: Inputs: Added support for mouse cursors, honoring ImGui::GetMouseCursor() value.
// 2018-02-16: Misc: Obsoleted the io.RenderDrawListsFn callback and exposed ImGui_ImplGlfwGL3_RenderDrawData() in the .h file so you can call it yourself.
// 2018-02-06: Misc: Removed call to ImGui::Shutdown() which is not available from 1.60 WIP, user needs to call CreateContext/DestroyContext themselves.
// 2018-02-06: Inputs: Added mapping for ImGuiKey_Space.
@ -43,6 +44,7 @@
static GLFWwindow* g_Window = NULL;
static double g_Time = 0.0f;
static bool g_MouseJustPressed[3] = { false, false, false };
static GLFWcursor* g_MouseCursors[ImGuiMouseCursor_Count_] = { 0 };
static const char* ImGui_ImplGlfwGL3_GetClipboardText(void* user_data)
{
@ -123,6 +125,14 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
io.ImeWindowHandle = glfwGetWin32Window(g_Window);
#endif
g_MouseCursors[ImGuiMouseCursor_Arrow] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR);
g_MouseCursors[ImGuiMouseCursor_TextInput] = glfwCreateStandardCursor(GLFW_IBEAM_CURSOR);
g_MouseCursors[ImGuiMouseCursor_ResizeAll] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); // FIXME: GLFW doesn't have this.
g_MouseCursors[ImGuiMouseCursor_ResizeNS] = glfwCreateStandardCursor(GLFW_VRESIZE_CURSOR);
g_MouseCursors[ImGuiMouseCursor_ResizeEW] = glfwCreateStandardCursor(GLFW_HRESIZE_CURSOR);
g_MouseCursors[ImGuiMouseCursor_ResizeNESW] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); // FIXME: GLFW doesn't have this.
g_MouseCursors[ImGuiMouseCursor_ResizeNWSE] = glfwCreateStandardCursor(GLFW_ARROW_CURSOR); // FIXME: GLFW doesn't have this.
if (install_callbacks)
{
glfwSetMouseButtonCallback(window, ImGui_ImplGlfw_MouseButtonCallback);
@ -136,6 +146,11 @@ bool ImGui_ImplGlfw_Init(GLFWwindow* window, bool install_callbacks)
void ImGui_ImplGlfw_Shutdown()
{
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_Count_; cursor_n++)
{
glfwDestroyCursor(g_MouseCursors[cursor_n]);
g_MouseCursors[cursor_n] = NULL;
}
}
void ImGui_ImplGlfw_NewFrame()
@ -184,7 +199,16 @@ void ImGui_ImplGlfw_NewFrame()
}
// Hide OS mouse cursor if ImGui is drawing it
glfwSetInputMode(g_Window, GLFW_CURSOR, io.MouseDrawCursor ? GLFW_CURSOR_HIDDEN : GLFW_CURSOR_NORMAL);
ImGuiMouseCursor cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || cursor == ImGuiMouseCursor_None)
{
glfwSetInputMode(g_Window, GLFW_CURSOR, GLFW_CURSOR_HIDDEN);
}
else
{
glfwSetInputMode(g_Window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
glfwSetCursor(g_Window, g_MouseCursors[cursor]);
}
// Gamepad navigation mapping [BETA]
memset(io.NavInputs, 0, sizeof(io.NavInputs));

3
examples/imgui_impl_sdl2.cpp
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@ -150,7 +150,10 @@ bool ImGui_ImplSDL2_Init(SDL_Window* window)
void ImGui_ImplSDL2_Shutdown()
{
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_Count_; cursor_n++)
{
SDL_FreeCursor(g_MouseCursors[cursor_n]);
g_MouseCursors[cursor_n] = NULL;
}
}
void ImGui_ImplSDL2_NewFrame(SDL_Window* window)