Merge c8bb716886 into 63a7e8b7f8

Fixes #2746

CONTRIBUTORS.md

@@ -55,6 +55,7 @@ video tutorials.
  - Jason Daly
  - danhambleton
  - Jarrod Davis
+ - decce
  - Olivier Delannoy
  - Paul R. Deppe
  - Michael Dickens

docs/monitor.md

@@ -255,3 +255,7 @@ hardware gamma correction, which today is typically an approximation of sRGB
 gamma.  This means that setting a perfectly linear ramp, or gamma 1.0, will
 produce the default (usually sRGB-like) behavior.
 
+@note @wayland An application cannot read or modify the monitor gamma ramp.  The
+@ref glfwGetGammaRamp, @ref glfwSetGammaRamp and @ref glfwSetGamma functions
+emit @ref GLFW_FEATURE_UNAVAILABLE.
+

docs/window.md

@@ -262,6 +262,11 @@ This is the new name, introduced in GLFW 3.4.  The older
 `GLFW_COCOA_RETINA_FRAMEBUFFER` name is also available for compatibility.  Both
 names modify the same hint value.
 
+@anchor GLFW_THEME
+__GLFW_THEME__ specifies whether the window should use light theme or not.
+Possible values are `GLFW_THEME_AUTO`, `GLFW_THEME_DARK`, and `GLFW_THEME_LIGHT`. This hint only has effect
+on windows operating system.
+
 @anchor GLFW_MOUSE_PASSTHROUGH_hint
 __GLFW_MOUSE_PASSTHROUGH__ specifies whether the window is transparent to mouse
 input, letting any mouse events pass through to whatever window is behind it.
@@ -893,6 +898,12 @@ int xpos, ypos;
 glfwGetWindowPos(window, &xpos, &ypos);
 ```
 
+@note @wayland An applications cannot know the positions of its windows or
+whether one has been moved.  The @ref GLFW_POSITION_X and @ref GLFW_POSITION_Y
+window hints are ignored.  The @ref glfwGetWindowPos and @ref glfwSetWindowPos
+functions emit @ref GLFW_FEATURE_UNAVAILABLE.  The window position callback will
+not be called.
+
 
 ### Window title {#window_title}
 
@@ -1038,6 +1049,12 @@ You can also get the current iconification state with @ref glfwGetWindowAttrib.
 int iconified = glfwGetWindowAttrib(window, GLFW_ICONIFIED);
 ```
 
+@note @wayland An application cannot know if any of its windows have been
+iconified or restore one from iconification.  The @ref glfwRestoreWindow
+function can only restore windows from maximization and the iconify callback
+will not be called.  The [GLFW_ICONIFIED](@ref GLFW_ICONIFIED_attrib) attribute
+will be false.  The @ref glfwIconifyWindow function works normally.
+
 
 ### Window maximization {#window_maximize}
 

include/GLFW/glfw3.h

@@ -1108,6 +1108,11 @@ extern "C" {
  *  [GLFW_SCALE_FRAMEBUFFER](@ref GLFW_SCALE_FRAMEBUFFER_hint) window hint for
  *  compatibility with earlier versions.
  */
+#define GLFW_THEME                  0x0002200E
+/*! @brief windows specific
+ *
+ *  Allows specifying whether light or dark theme should be used.
+ */
 #define GLFW_COCOA_RETINA_FRAMEBUFFER 0x00023001
 /*! @brief macOS specific
  *  [window hint](@ref GLFW_COCOA_FRAME_NAME_hint).
@@ -1182,6 +1187,10 @@ extern "C" {
 
 #define GLFW_ANY_POSITION           0x80000000
 
+#define GLFW_THEME_AUTO             0x00000000
+#define GLFW_THEME_DARK             0x00000001
+#define GLFW_THEME_LIGHT            0x00000002
+
 /*! @defgroup shapes Standard cursor shapes
  *  @brief Standard system cursor shapes.
  *
@@ -2915,8 +2924,8 @@ GLFWAPI const GLFWvidmode* glfwGetVideoMode(GLFWmonitor* monitor);
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref GLFW_INVALID_VALUE,
  *  @ref GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
  *
- *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  @remark @wayland Monitor gamma is a privileged protocol, so this function
- *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
+ *  cannot be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
  *
  *  @thread_safety This function must only be called from the main thread.
  *
@@ -2939,8 +2948,8 @@ GLFWAPI void glfwSetGamma(GLFWmonitor* monitor, float gamma);
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref GLFW_PLATFORM_ERROR
  *  and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
  *
- *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  @remark @wayland Monitor gamma is a privileged protocol, so this function
- *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE while
+ *  cannot be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE while
  *  returning `NULL`.
  *
  *  @pointer_lifetime The returned structure and its arrays are allocated and
@@ -2983,8 +2992,8 @@ GLFWAPI const GLFWgammaramp* glfwGetGammaRamp(GLFWmonitor* monitor);
  *
  *  @remark @win32 The gamma ramp size must be 256.
  *
- *  @remark @wayland Gamma handling is a privileged protocol, this function
+ *  @remark @wayland Monitor gamma is a privileged protocol, so this function
- *  will thus never be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
+ *  cannot be implemented and emits @ref GLFW_FEATURE_UNAVAILABLE.
  *
  *  @pointer_lifetime The specified gamma ramp is copied before this function
  *  returns.
@@ -3430,8 +3439,8 @@ GLFWAPI void glfwSetWindowIcon(GLFWwindow* window, int count, const GLFWimage* i
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
  *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
  *
- *  @remark @wayland There is no way for an application to retrieve the global
+ *  @remark @wayland Window positions are not currently part of any common
- *  position of its windows.  This function will emit @ref
+ *  Wayland protocol, so this function cannot be implemented and will emit @ref
  *  GLFW_FEATURE_UNAVAILABLE.
  *
  *  @thread_safety This function must only be called from the main thread.
@@ -3464,8 +3473,8 @@ GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos);
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED, @ref
  *  GLFW_PLATFORM_ERROR and @ref GLFW_FEATURE_UNAVAILABLE (see remarks).
  *
- *  @remark @wayland There is no way for an application to set the global
+ *  @remark @wayland Window positions are not currently part of any common
- *  position of its windows.  This function will emit @ref
+ *  Wayland protocol, so this function cannot be implemented and will emit @ref
  *  GLFW_FEATURE_UNAVAILABLE.
  *
  *  @thread_safety This function must only be called from the main thread.
@@ -3480,6 +3489,8 @@ GLFWAPI void glfwGetWindowPos(GLFWwindow* window, int* xpos, int* ypos);
  */
 GLFWAPI void glfwSetWindowPos(GLFWwindow* window, int xpos, int ypos);
 
+GLFWAPI int glfwIsWindowLightTheme(GLFWwindow* window);
+
 /*! @brief Retrieves the size of the content area of the specified window.
  *
  *  This function retrieves the size, in screen coordinates, of the content area
@@ -3807,10 +3818,6 @@ GLFWAPI void glfwSetWindowOpacity(GLFWwindow* window, float opacity);
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
  *  GLFW_PLATFORM_ERROR.
  *
- *  @remark @wayland Once a window is iconified, @ref glfwRestoreWindow won’t
- *  be able to restore it.  This is a design decision of the xdg-shell
- *  protocol.
- *
  *  @thread_safety This function must only be called from the main thread.
  *
  *  @sa @ref window_iconify
@@ -3838,6 +3845,10 @@ GLFWAPI void glfwIconifyWindow(GLFWwindow* window);
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED and @ref
  *  GLFW_PLATFORM_ERROR.
  *
+ *  @remark @wayland Restoring a window from maximization is not currently part
+ *  of any common Wayland protocol, so this function can only restore windows
+ *  from maximization.
+ *
  *  @thread_safety This function must only be called from the main thread.
  *
  *  @sa @ref window_iconify
@@ -4058,8 +4069,8 @@ GLFWAPI GLFWmonitor* glfwGetWindowMonitor(GLFWwindow* window);
  *  affected by any resizing or mode switching, although you may need to update
  *  your viewport if the framebuffer size has changed.
  *
- *  @remark @wayland The desired window position is ignored, as there is no way
+ *  @remark @wayland Window positions are not currently part of any common
- *  for an application to set this property.
+ *  Wayland protocol.  The window position arguments are ignored.
  *
  *  @thread_safety This function must only be called from the main thread.
  *
@@ -4096,8 +4107,9 @@ GLFWAPI void glfwSetWindowMonitor(GLFWwindow* window, GLFWmonitor* monitor, int
  *  errors.  However, this function should not fail as long as it is passed
  *  valid arguments and the library has been [initialized](@ref intro_init).
  *
- *  @remark @wayland The Wayland protocol provides no way to check whether a
+ *  @remark @wayland Checking whether a window is iconified is not currently
- *  window is iconfied, so @ref GLFW_ICONIFIED always returns `GLFW_FALSE`.
+ *  part of any common Wayland protocol, so the @ref GLFW_ICONIFIED attribute
+ *  cannot be implemented and is always `GLFW_FALSE`.
  *
  *  @thread_safety This function must only be called from the main thread.
  *
@@ -4219,8 +4231,8 @@ GLFWAPI void* glfwGetWindowUserPointer(GLFWwindow* window);
  *
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
  *
- *  @remark @wayland This callback will never be called, as there is no way for
+ *  @remark @wayland This callback will not be called.  The Wayland protocol
- *  an application to know its global position.
+ *  provides no way to be notified of when a window is moved.
  *
  *  @thread_safety This function must only be called from the main thread.
  *
@@ -4395,6 +4407,10 @@ GLFWAPI GLFWwindowfocusfun glfwSetWindowFocusCallback(GLFWwindow* window, GLFWwi
  *
  *  @errors Possible errors include @ref GLFW_NOT_INITIALIZED.
  *
+ *  @remark @wayland This callback will not be called.  The Wayland protocol
+ *  provides no way to be notified of when a window is iconified, and no way to
+ *  check whether a window is currently iconified.
+ *
  *  @thread_safety This function must only be called from the main thread.
  *
  *  @sa @ref window_iconify

premake5.lua

@@ -0,0 +1,107 @@
+project "GLFW"
+	kind "StaticLib"
+	language "C"
+
+	targetdir ("bin/" .. outputdir .. "/%{prj.name}")
+	objdir ("bin-int/" .. outputdir .. "/%{prj.name}")
+
+	files
+	{
+		"include/GLFW/glfw3.h",
+		"include/GLFW/glfw3native.h",
+		"src/glfw_config.h",
+		"src/context.c",
+		"src/init.c",
+		"src/input.c",
+		"src/monitor.c",
+
+		"src/null_init.c",
+		"src/null_joystick.c",
+		"src/null_monitor.c",
+		"src/null_window.c",
+
+		"src/platform.c",
+		"src/vulkan.c",
+		"src/window.c"
+	}
+	filter "system:linux"
+		pic "On"
+
+		systemversion "latest"
+		staticruntime "On"
+
+		files
+		{
+			"src/x11_init.c",
+			"src/x11_monitor.c",
+			"src/x11_window.c",
+			"src/xkb_unicode.c",
+			"src/posix_module.c",
+			"src/posix_time.c",
+			"src/posix_thread.c",
+			"src/posix_module.c",
+			"src/posix_poll.c",
+			"src/glx_context.c",
+			"src/egl_context.c",
+			"src/osmesa_context.c",
+			"src/linux_joystick.c"
+		}
+
+		defines
+		{
+			"_GLFW_X11"
+		}
+
+	filter "system:macosx"
+		pic "On"
+
+		files
+		{
+			"src/cocoa_init.m",
+			"src/cocoa_monitor.m",
+			"src/cocoa_window.m",
+			"src/cocoa_joystick.m",
+			"src/cocoa_time.c",
+			"src/nsgl_context.m",
+			"src/posix_thread.c",
+			"src/posix_module.c",
+			"src/osmesa_context.c",
+			"src/egl_context.c"
+		}
+
+		defines
+		{
+			"_GLFW_COCOA"
+		}
+
+	filter "system:windows"
+		systemversion "latest"
+		staticruntime "On"
+
+		files
+		{
+			"src/win32_init.c",
+			"src/win32_joystick.c",
+			"src/win32_module.c",
+			"src/win32_monitor.c",
+			"src/win32_time.c",
+			"src/win32_thread.c",
+			"src/win32_window.c",
+			"src/wgl_context.c",
+			"src/egl_context.c",
+			"src/osmesa_context.c"
+		}
+
+		defines 
+		{ 
+			"_GLFW_WIN32",
+			"_CRT_SECURE_NO_WARNINGS"
+		}
+
+	filter "configurations:Debug"
+		runtime "Debug"
+		symbols "on"
+
+	filter "configurations:Release"
+		runtime "Release"
+		optimize "on"

src/internal.h

@@ -415,6 +415,7 @@ struct _GLFWwndconfig
     GLFWbool      mousePassthrough;
     GLFWbool      scaleToMonitor;
     GLFWbool      scaleFramebuffer;
+    int           theme;
     struct {
         char      frameName[256];
     } ns;
@@ -539,6 +540,7 @@ struct _GLFWwindow
     GLFWbool            focusOnShow;
     GLFWbool            mousePassthrough;
     GLFWbool            shouldClose;
+    GLFWbool            isLightTheme;
     void*               userPointer;
     GLFWbool            doublebuffer;
     GLFWvidmode         videoMode;

src/win32_init.c

@@ -145,6 +145,8 @@ static GLFWbool loadLibraries(void)
             _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmEnableBlurBehindWindow");
         _glfw.win32.dwmapi.GetColorizationColor = (PFN_DwmGetColorizationColor)
             _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmGetColorizationColor");
+        _glfw.win32.dwmapi.DwmSetWindowAttribute = (PFN_DwmSetWindowAttribute)
+            _glfwPlatformGetModuleSymbol(_glfw.win32.dwmapi.instance, "DwmSetWindowAttribute");
     }
 
     _glfw.win32.shcore.instance = _glfwPlatformLoadModule("shcore.dll");
@@ -563,6 +565,14 @@ void _glfwUpdateKeyNamesWin32(void)
     }
 }
 
+void _glfwSetWindowTheme(BOOL dark, HWND hwnd)
+{
+#ifndef DWMWA_USE_IMMERSIVE_DARK_MODE
+#define DWMWA_USE_IMMERSIVE_DARK_MODE 20
+#endif
+    _glfw.win32.dwmapi.DwmSetWindowAttribute(hwnd, DWMWA_USE_IMMERSIVE_DARK_MODE, &dark, sizeof(dark));
+}
+
 // Replacement for IsWindowsVersionOrGreater, as we cannot rely on the
 // application having a correct embedded manifest
 //

src/win32_platform.h

@@ -243,6 +243,7 @@ typedef HRESULT (WINAPI * PFN_DwmIsCompositionEnabled)(BOOL*);
 typedef HRESULT (WINAPI * PFN_DwmFlush)(VOID);
 typedef HRESULT (WINAPI * PFN_DwmEnableBlurBehindWindow)(HWND,const DWM_BLURBEHIND*);
 typedef HRESULT (WINAPI * PFN_DwmGetColorizationColor)(DWORD*,BOOL*);
+typedef HRESULT (WINAPI * PFN_DwmSetWindowAttribute)(HWND, DWORD, LPCVOID, DWORD);
 #define DwmIsCompositionEnabled _glfw.win32.dwmapi.IsCompositionEnabled
 #define DwmFlush _glfw.win32.dwmapi.Flush
 #define DwmEnableBlurBehindWindow _glfw.win32.dwmapi.EnableBlurBehindWindow
@@ -430,6 +431,7 @@ typedef struct _GLFWlibraryWin32
         PFN_DwmFlush                    Flush;
         PFN_DwmEnableBlurBehindWindow   EnableBlurBehindWindow;
         PFN_DwmGetColorizationColor     GetColorizationColor;
+        PFN_DwmSetWindowAttribute       DwmSetWindowAttribute;
     } dwmapi;
 
     struct {
@@ -476,6 +478,7 @@ BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp);
 BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build);
 void _glfwInputErrorWin32(int error, const char* description);
 void _glfwUpdateKeyNamesWin32(void);
+void _glfwSetWindowTheme(BOOL dark, HWND hwnd);
 
 void _glfwPollMonitorsWin32(void);
 void _glfwSetVideoModeWin32(_GLFWmonitor* monitor, const GLFWvidmode* desired);

src/win32_window.c

@@ -1392,6 +1392,36 @@ static int createNativeWindow(_GLFWwindow* window,
                                            _glfw.win32.instance,
                                            (LPVOID) wndconfig);
 
+    BOOL should_use_light_mode;
+    if (wndconfig->theme == GLFW_THEME_AUTO)
+    {
+        BOOL success = FALSE;
+        HKEY hRootKey = HKEY_CURRENT_USER;
+        const wchar_t* lpSubKey = L"Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize";
+        const wchar_t* lpValueName = L"AppsUseLightTheme";
+        DWORD result;
+        {
+            HKEY hKey = 0;
+            if (RegOpenKeyExW(hRootKey, lpSubKey, 0, KEY_READ, &hKey) == ERROR_SUCCESS)
+            {
+                DWORD dwBufferSize = sizeof(DWORD);
+                DWORD dwData = 0;
+                if (RegQueryValueExW(hKey, lpValueName, 0, NULL, (LPBYTE)(&dwData), &dwBufferSize) == ERROR_SUCCESS)
+                {
+                    result = dwData;
+                    success = TRUE;
+                }
+                RegCloseKey(hKey);
+            }
+        }
+        should_use_light_mode = success && result != 0;
+    }
+    else
+        should_use_light_mode = wndconfig->theme == GLFW_THEME_LIGHT;
+
+    _glfwSetWindowTheme(!should_use_light_mode, window->win32.handle);
+    window->isLightTheme = should_use_light_mode ? GLFW_TRUE : GLFW_FALSE;
+
     _glfw_free(wideTitle);
 
     if (!window->win32.handle)

src/window.c

@@ -388,6 +388,8 @@ GLFWAPI void glfwWindowHint(int hint, int value)
         case GLFW_SCALE_FRAMEBUFFER:
         case GLFW_COCOA_RETINA_FRAMEBUFFER:
             _glfw.hints.window.scaleFramebuffer = value ? GLFW_TRUE : GLFW_FALSE;
+        case GLFW_THEME:
+            _glfw.hints.window.theme = value;
             return;
         case GLFW_CENTER_CURSOR:
             _glfw.hints.window.centerCursor = value ? GLFW_TRUE : GLFW_FALSE;
@@ -607,6 +609,15 @@ GLFWAPI void glfwSetWindowPos(GLFWwindow* handle, int xpos, int ypos)
     _glfw.platform.setWindowPos(window, xpos, ypos);
 }
 
+GLFWAPI int glfwIsWindowLightTheme(GLFWwindow* handle)
+{
+    _GLFWwindow* window = (_GLFWwindow*)handle;
+    assert(window != NULL);
+
+    _GLFW_REQUIRE_INIT_OR_RETURN(0);
+    return window->isLightTheme;
+}
+
 GLFWAPI void glfwGetWindowSize(GLFWwindow* handle, int* width, int* height)
 {
     if (width)