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Viewport, Platform, Examples: Added support for transparent window via PlatformIO Platform_SetWindowAlpha (#1542) + fixes for GLFW 3.3

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This commit is contained in:
omar
2018-04-05 17:06:23 +02:00
parent 84c6ea0cee
commit 72899318e6
4 changed files with 41 additions and 3 deletions
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16
examples/imgui_impl_glfw.cpp
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@ -39,6 +39,7 @@
#else
#define GLFW_HAS_GLFW_HOVERED 0
#endif
#define GLFW_HAS_WINDOW_ALPHA (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+
#define GLFW_HAS_VULKAN (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+
// Data
@ -235,8 +236,8 @@ static void ImGui_ImplGlfw_UpdateMouse()
}
#if GLFW_HAS_GLFW_HOVERED
io.ConfigFlags |= ImGuiConfigFlags_PlatformHasMouseHoveredViewport;
if (glfwGetWindowAttrib(data->Window, GLFW_HOVERED) && !(viewport->Flags & ImGuiViewportFlags_NoInputs))
io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport;
if (glfwGetWindowAttrib(window, GLFW_HOVERED) && !(viewport->Flags & ImGuiViewportFlags_NoInputs))
io.MouseHoveredViewport = viewport->ID;
#endif
}
@ -469,6 +470,14 @@ static void ImGui_ImplGlfw_SetWindowTitle(ImGuiViewport* viewport, const char* t
glfwSetWindowTitle(data->Window, title);
}
#if GLFW_HAS_WINDOW_ALPHA
static void ImGui_ImplGlfw_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
{
ImGuiViewportDataGlfw* data = (ImGuiViewportDataGlfw*)viewport->PlatformUserData;
glfwSetWindowOpacity(data->Window, alpha);
}
#endif
static void ImGui_ImplGlfw_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGuiViewportDataGlfw* data = (ImGuiViewportDataGlfw*)viewport->PlatformUserData;
@ -522,6 +531,9 @@ static void ImGui_ImplGlfw_InitPlatformInterface()
platform_io.Platform_SetWindowTitle = ImGui_ImplGlfw_SetWindowTitle;
platform_io.Platform_RenderWindow = ImGui_ImplGlfw_RenderWindow;
platform_io.Platform_SwapBuffers = ImGui_ImplGlfw_SwapBuffers;
#if GLFW_HAS_WINDOW_ALPHA
platform_io.Platform_SetWindowAlpha = ImGui_ImplGlfw_SetWindowAlpha;
#endif
#if GLFW_HAS_VULKAN
platform_io.Platform_CreateVkSurface = ImGui_ImplGlfw_CreateVkSurface;
#endif