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Add new window setting: always on top

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Implemented for Windows and Linux.
This commit is contained in:
Pedro J. Estébanez 2017-12-27 20:51:19 +01:00
parent db49f35ab8
commit ee2c31d306
8 changed files with 105 additions and 4 deletions
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10
core/bind/core_bind.cpp
View file

@ -294,6 +294,14 @@ bool _OS::is_window_maximized() const {
return OS::get_singleton()->is_window_maximized();
}
void _OS::set_window_always_on_top(bool p_enabled) {
OS::get_singleton()->set_window_always_on_top(p_enabled);
}
bool _OS::is_window_always_on_top() const {
return OS::get_singleton()->is_window_always_on_top();
}
void _OS::set_borderless_window(bool p_borderless) {
OS::get_singleton()->set_borderless_window(p_borderless);
}
@ -1010,6 +1018,8 @@ void _OS::_bind_methods() {
ClassDB::bind_method(D_METHOD("is_window_minimized"), &_OS::is_window_minimized);
ClassDB::bind_method(D_METHOD("set_window_maximized", "enabled"), &_OS::set_window_maximized);
ClassDB::bind_method(D_METHOD("is_window_maximized"), &_OS::is_window_maximized);
ClassDB::bind_method(D_METHOD("set_window_always_on_top", "enabled"), &_OS::set_window_always_on_top);
ClassDB::bind_method(D_METHOD("is_window_always_on_top"), &_OS::is_window_always_on_top);
ClassDB::bind_method(D_METHOD("request_attention"), &_OS::request_attention);
ClassDB::bind_method(D_METHOD("set_borderless_window", "borderless"), &_OS::set_borderless_window);

2
core/bind/core_bind.h
View file

@ -164,6 +164,8 @@ public:
virtual bool is_window_minimized() const;
virtual void set_window_maximized(bool p_enabled);
virtual bool is_window_maximized() const;
virtual void set_window_always_on_top(bool p_enabled);
virtual bool is_window_always_on_top() const;
virtual void request_attention();
virtual void set_borderless_window(bool p_borderless);

6
core/os/os.h
View file

@ -94,15 +94,17 @@ public:
bool resizable;
bool borderless_window;
bool maximized;
bool always_on_top;
bool use_vsync;
float get_aspect() const { return (float)width / (float)height; }
VideoMode(int p_width = 1024, int p_height = 600, bool p_fullscreen = false, bool p_resizable = true, bool p_borderless_window = false, bool p_maximized = false, bool p_use_vsync = false) {
VideoMode(int p_width = 1024, int p_height = 600, bool p_fullscreen = false, bool p_resizable = true, bool p_borderless_window = false, bool p_maximized = false, bool p_always_on_top = false, bool p_use_vsync = false) {
width = p_width;
height = p_height;
fullscreen = p_fullscreen;
resizable = p_resizable;
borderless_window = p_borderless_window;
maximized = p_maximized;
always_on_top = p_always_on_top;
use_vsync = p_use_vsync;
}
};
@ -191,6 +193,8 @@ public:
virtual bool is_window_minimized() const { return false; }
virtual void set_window_maximized(bool p_enabled) {}
virtual bool is_window_maximized() const { return true; }
virtual void set_window_always_on_top(bool p_enabled) {}
virtual bool is_window_always_on_top() const { return false; }
virtual void request_attention() {}
virtual void set_borderless_window(bool p_borderless) {}

10
main/main.cpp
View file

@ -106,6 +106,7 @@ static OS::VideoMode video_mode;
static bool init_maximized = false;
static bool init_windowed = false;
static bool init_fullscreen = false;
static bool init_always_on_top = false;
static bool init_use_custom_pos = false;
#ifdef DEBUG_ENABLED
static bool debug_collisions = false;
@ -224,6 +225,7 @@ void Main::print_help(const char *p_binary) {
OS::get_singleton()->print(" -f, --fullscreen Request fullscreen mode.\n");
OS::get_singleton()->print(" -m, --maximized Request a maximized window.\n");
OS::get_singleton()->print(" -w, --windowed Request windowed mode.\n");
OS::get_singleton()->print(" -t, --always-on-top Request an always-on-top window.\n");
OS::get_singleton()->print(" --resolution <W>x<H> Request window resolution.\n");
OS::get_singleton()->print(" --position <X>,<Y> Request window position.\n");
OS::get_singleton()->print(" --low-dpi Force low-DPI mode (macOS and Windows only).\n");
@ -430,6 +432,9 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
} else if (I->get() == "-w" || I->get() == "--windowed") { // force windowed window
init_windowed = true;
} else if (I->get() == "-t" || I->get() == "--always-on-top") { // force always-on-top window
init_always_on_top = true;
} else if (I->get() == "--profiling") { // enable profiling
use_debug_profiler = true;
@ -795,6 +800,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
GLOBAL_DEF("display/window/size/resizable", true);
GLOBAL_DEF("display/window/size/borderless", false);
GLOBAL_DEF("display/window/size/fullscreen", false);
GLOBAL_DEF("display/window/size/always_on_top", false);
GLOBAL_DEF("display/window/size/test_width", 0);
GLOBAL_DEF("display/window/size/test_height", 0);
@ -817,6 +823,7 @@ Error Main::setup(const char *execpath, int argc, char *argv[], bool p_second_ph
video_mode.resizable = GLOBAL_GET("display/window/size/resizable");
video_mode.borderless_window = GLOBAL_GET("display/window/size/borderless");
video_mode.fullscreen = GLOBAL_GET("display/window/size/fullscreen");
video_mode.always_on_top = GLOBAL_GET("display/window/size/always_on_top");
}
if (!force_lowdpi) {
@ -1020,6 +1027,9 @@ Error Main::setup2(Thread::ID p_main_tid_override) {
} else if (init_fullscreen) {
OS::get_singleton()->set_window_fullscreen(true);
}
if (init_always_on_top) {
OS::get_singleton()->set_window_always_on_top(true);
}
register_server_types();

19
platform/windows/os_windows.cpp
View file

@ -1068,6 +1068,10 @@ Error OS_Windows::initialize(const VideoMode &p_desired, int p_video_driver, int
}
};
if (video_mode.always_on_top) {
SetWindowPos(hWnd, video_mode.always_on_top ? HWND_TOPMOST : HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
}
#if defined(OPENGL_ENABLED)
gl_context = memnew(ContextGL_Win(hWnd, true));
gl_context->initialize();
@ -1601,6 +1605,19 @@ bool OS_Windows::is_window_maximized() const {
return maximized;
}
void OS_Windows::set_window_always_on_top(bool p_enabled) {
if (video_mode.always_on_top == p_enabled)
return;
video_mode.always_on_top = p_enabled;
_update_window_style();
}
bool OS_Windows::is_window_always_on_top() const {
return video_mode.always_on_top;
}
void OS_Windows::set_borderless_window(bool p_borderless) {
if (video_mode.borderless_window == p_borderless)
return;
@ -1625,6 +1642,8 @@ void OS_Windows::_update_window_style(bool repaint) {
}
}
SetWindowPos(hWnd, video_mode.always_on_top ? HWND_TOPMOST : HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
if (repaint) {
RECT rect;
GetWindowRect(hWnd, &rect);

2
platform/windows/os_windows.h
View file

@ -210,6 +210,8 @@ public:
virtual bool is_window_minimized() const;
virtual void set_window_maximized(bool p_enabled);
virtual bool is_window_maximized() const;
virtual void set_window_always_on_top(bool p_enabled);
virtual bool is_window_always_on_top() const;
virtual void request_attention();
virtual void set_borderless_window(bool p_borderless);

57
platform/x11/os_x11.cpp
View file

@ -333,6 +333,11 @@ Error OS_X11::initialize(const VideoMode &p_desired, int p_video_driver, int p_a
XFree(xsh);
}
if (current_videomode.always_on_top) {
current_videomode.always_on_top = false;
set_window_always_on_top(true);
}
AudioDriverManager::initialize(p_audio_driver);
ERR_FAIL_COND_V(!visual_server, ERR_UNAVAILABLE);
@ -710,9 +715,6 @@ void OS_X11::get_fullscreen_mode_list(List<VideoMode> *p_list, int p_screen) con
}
void OS_X11::set_wm_fullscreen(bool p_enabled) {
if (current_videomode.fullscreen == p_enabled)
return;
if (p_enabled && !is_window_resizable()) {
// Set the window as resizable to prevent window managers to ignore the fullscreen state flag.
XSizeHints *xsh;
@ -773,6 +775,22 @@ void OS_X11::set_wm_fullscreen(bool p_enabled) {
}
}
void OS_X11::set_wm_above(bool p_enabled) {
Atom wm_state = XInternAtom(x11_display, "_NET_WM_STATE", False);
Atom wm_above = XInternAtom(x11_display, "_NET_WM_STATE_ABOVE", False);
XClientMessageEvent xev;
memset(&xev, 0, sizeof(xev));
xev.type = ClientMessage;
xev.window = x11_window;
xev.message_type = wm_state;
xev.format = 32;
xev.data.l[0] = p_enabled ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;
xev.data.l[1] = wm_above;
xev.data.l[3] = 1;
XSendEvent(x11_display, DefaultRootWindow(x11_display), False, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&xev);
}
int OS_X11::get_screen_count() const {
// Using Xinerama Extension
int event_base, error_base;
@ -947,7 +965,19 @@ void OS_X11::set_window_size(const Size2 p_size) {
}
void OS_X11::set_window_fullscreen(bool p_enabled) {
if (current_videomode.fullscreen == p_enabled)
return;
if (p_enabled && current_videomode.always_on_top) {
// Fullscreen + Always-on-top requires a maximized window on some window managers (Metacity)
set_window_maximized(true);
}
set_wm_fullscreen(p_enabled);
if (!p_enabled && !current_videomode.always_on_top) {
// Restore
set_window_maximized(false);
}
current_videomode.fullscreen = p_enabled;
}
@ -1154,6 +1184,27 @@ bool OS_X11::is_window_maximized() const {
return false;
}
void OS_X11::set_window_always_on_top(bool p_enabled) {
if (is_window_always_on_top() == p_enabled)
return;
if (p_enabled && current_videomode.fullscreen) {
// Fullscreen + Always-on-top requires a maximized window on some window managers (Metacity)
set_window_maximized(true);
}
set_wm_above(p_enabled);
if (!p_enabled && !current_videomode.fullscreen) {
// Restore
set_window_maximized(false);
}
current_videomode.always_on_top = p_enabled;
}
bool OS_X11::is_window_always_on_top() const {
return current_videomode.always_on_top;
}
void OS_X11::set_borderless_window(bool p_borderless) {
if (current_videomode.borderless_window == p_borderless)

3
platform/x11/os_x11.h
View file

@ -178,6 +178,7 @@ class OS_X11 : public OS_Unix {
bool maximized;
//void set_wm_border(bool p_enabled);
void set_wm_fullscreen(bool p_enabled);
void set_wm_above(bool p_enabled);
typedef xrr_monitor_info *(*xrr_get_monitors_t)(Display *dpy, Window window, Bool get_active, int *nmonitors);
typedef void (*xrr_free_monitors_t)(xrr_monitor_info *monitors);
@ -260,6 +261,8 @@ public:
virtual bool is_window_minimized() const;
virtual void set_window_maximized(bool p_enabled);
virtual bool is_window_maximized() const;
virtual void set_window_always_on_top(bool p_enabled);
virtual bool is_window_always_on_top() const;
virtual void request_attention();
virtual void set_borderless_window(bool p_borderless);