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Platform Binding for GLFW updated with the release of GLFW 3.3 (#2547)

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* With the release of GLFW 3.3, it is now possible to detect correctly monitors working area (see GLFW_HAS_MONITOR_WORK_AREA). GLFW 3.3 also introduced the window hint GLFW_FOCUS_ON_SHOW. This fixed the case where a new created window (viewport) takes the focus even if not visible.

* Disable a GLFW 3.2 windows hack when GLFW 3.3 is detected (related to window focused when shown).
This commit is contained in:
Alzathar 2019-05-11 04:54:56 -04:00 committed by omar
parent b668726a38
commit 02d6d2d487
1 changed files with 23 additions and 6 deletions
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17
examples/imgui_impl_glfw.cpp
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@ -50,6 +50,8 @@
#define GLFW_HAS_PER_MONITOR_DPI (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetMonitorContentScale
#define GLFW_HAS_VULKAN (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwCreateWindowSurface
#define GLFW_HAS_FOCUS_WINDOW (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3200) // 3.2+ glfwFocusWindow
#define GLFW_HAS_FOCUS_ON_SHOW (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ GLFW_FOCUS_ON_SHOW
#define GLFW_HAS_MONITOR_WORK_AREA (GLFW_VERSION_MAJOR * 1000 + GLFW_VERSION_MINOR * 100 >= 3300) // 3.3+ glfwGetMonitorWorkarea
// Data
enum GlfwClientApi
@ -428,8 +430,12 @@ static void ImGui_ImplGlfw_CreateWindow(ImGuiViewport* viewport)
viewport->PlatformUserData = data;
// GLFW 3.2 unfortunately always set focus on glfwCreateWindow() if GLFW_VISIBLE is set, regardless of GLFW_FOCUSED
// With GLFW 3.3, the hint GLFW_FOCUS_ON_SHOW fixes this problem
glfwWindowHint(GLFW_VISIBLE, false);
glfwWindowHint(GLFW_FOCUSED, false);
#if GLFW_HAS_FOCUS_ON_SHOW
glfwWindowHint(GLFW_FOCUS_ON_SHOW, false);
#endif
glfwWindowHint(GLFW_DECORATED, (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? false : true);
#if GLFW_HAS_WINDOW_TOPMOST
glfwWindowHint(GLFW_FLOATING, (viewport->Flags & ImGuiViewportFlags_TopMost) ? true : false);
@ -515,6 +521,7 @@ static void ImGui_ImplGlfw_ShowWindow(ImGuiViewport* viewport)
::SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)WndProcNoInputs);
#endif
#if !GLFW_HAS_FOCUS_ON_SHOW
// GLFW hack: GLFW 3.2 has a bug where glfwShowWindow() also activates/focus the window.
// The fix was pushed to GLFW repository on 2018/01/09 and should be included in GLFW 3.3 via a GLFW_FOCUS_ON_SHOW window attribute.
// See https://github.com/glfw/glfw/issues/1189
@ -524,6 +531,7 @@ static void ImGui_ImplGlfw_ShowWindow(ImGuiViewport* viewport)
::ShowWindow(hwnd, SW_SHOWNA);
return;
}
#endif
#endif
glfwShowWindow(data->Window);
@ -678,8 +686,17 @@ static void ImGui_ImplGlfw_UpdateMonitors()
int x, y;
glfwGetMonitorPos(glfw_monitors[n], &x, &y);
const GLFWvidmode* vid_mode = glfwGetVideoMode(glfw_monitors[n]);
#if GLFW_HAS_MONITOR_WORK_AREA
monitor.MainPos = ImVec2((float)x, (float)y);
monitor.MainSize = ImVec2((float)vid_mode->width, (float)vid_mode->height);
int w, h;
glfwGetMonitorWorkarea(glfw_monitors[n], &x, &y, &w, &h);
monitor.WorkPos = ImVec2((float)x, (float)y);;
monitor.WorkSize = ImVec2((float)w, (float)h);
#else
monitor.MainPos = monitor.WorkPos = ImVec2((float)x, (float)y);
monitor.MainSize = monitor.WorkSize = ImVec2((float)vid_mode->width, (float)vid_mode->height);
#endif
#if GLFW_HAS_PER_MONITOR_DPI
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
float x_scale, y_scale;