WIndows fix bug in RestoreFromFullscreen

include/ReWindow/types/Window.h

@@ -220,13 +220,12 @@ public:
     /// @note Execution of the parent window is stopped while the message box is up.
     void DialogOK(const std::string& title, const std::string& message);
 
-    /// Sets whether or not to make the window fullscreen.
-    /// @note This is implemented per-OS, and as such, it simply requests the OS to do what we want. No guarantee about follow-through can be given.
+    /// Sets whether the window is fullscreen.
     void SetFullscreen(bool fs);
 
-    /// Sets whether or not to make the window resizable.
-    /// @note This is implemented per-OS, and as such, it simply requests the OS to do what we want. No guarantee about follow-through can be given.
-    void SetResizable(bool resizable);
+    /// Sets whether the window can be resized by the user.
+    /// @note Resize events will still be sent if fullscreen is toggled.
+    void DisableResizing();
 
     /// Sets the title of this window.
     void SetTitle(const std::string& title);
@@ -265,7 +264,7 @@ public:
     void SetSize(const std::pair<int, int>& size);
 
     /// Returns the position of the window's top-left corner relative to the display
-    [[nodiscard]] std::pair<int, int> GetPos() const;
+    [[nodiscard]] std::pair<int, int> GetPosition() const;
 
     /// Returns the known size of the window, in {x,y} pixel measurement.
     [[nodiscard]] std::pair<int, int> GetSize() const;

main.cpp

@@ -14,8 +14,10 @@ class MyWindow : public OpenGLWindow {
 	void OnMouseMove(const MouseMoveEvent& e) override {}
 
 	void OnKeyDown(const KeyDownEvent& e) override {
-            if (e.key == Keys::F11)
+            if (e.key == Keys::F11) {
                 SetFullscreen(!IsFullscreen());
+                std::cout << "ran" << std::endl;
+            }
         }
 
 	bool OnResizeRequest(const WindowResizeRequestEvent& e) override { return true; }
@@ -53,7 +55,7 @@ int main() {
 
 	Logger::Debug("TODO: Cannot set flags until after window is open");
     window->SetVsyncEnabled(true);
-    window->SetResizable(true);
+    window->DisableResizing();
     window->SetKeyRepeatEnabled(false);
 
 	Logger::Debug(std::format

src/platform/linux/Window.cpp

@@ -23,6 +23,7 @@ public:
     XWMHints* wm_hints = nullptr;
     bool window_visible = true;
     std::pair<int, int> position = { 0, 0 };
+    std::pair<int, int> size_before_fullscreen {0, 0};
 };
 
 
@@ -197,17 +198,15 @@ void RWindow::SetCursorVisible(bool cursor_enable) {
         XUndefineCursor(platform->display, platform->window);
 }
 
-void RWindow::SetResizable(bool sizable) {
+void RWindow::DisableResizing() {
     XGetWindowAttributes(platform->display, platform->window, &platform->windowAttributes);
 
-    this->resizable = sizable;
-    if (!sizable) {
-        Logger::Debug("Once you've done this you cannot make it resizable again.");
     platform->hints.flags = PMinSize | PMaxSize;
     platform->hints.min_width = platform->hints.max_width = platform->windowAttributes.width;
     platform->hints.min_height = platform->hints.max_height = platform->windowAttributes.height;
     XSetWMNormalHints(platform->display, platform->window, &platform->hints);
-    }
+
+    this->resizable = false;
 }
 
 void RWindow::PollEvents() {
@@ -411,16 +410,13 @@ bool RWindow::IsVisible() const {
     return platform->window_visible;
 }
 
-
-std::pair<int, int> RWindow::GetSize() const {
-    return { this->width, this->height };
-}
-
 // TODO: implement integer std::pair<int, int>/3 types
-std::pair<int, int> RWindow::GetPos() const {
+std::pair<int, int> RWindow::GetPosition() const {
     return platform->position;
 }
 
+std::pair<int, int> RWindow::GetSize() const { return { this->width, this->height }; }
+
 void RWindow::SetPosition(int x, int y) {
     XMoveWindow(platform->display, platform->window, x, y);
     platform->position = {x, y};
@@ -431,6 +427,19 @@ void RWindow::SetPosition(const std::pair<int, int>& pos) {
 }
 
 void RWindow::Fullscreen() {
+    platform->size_before_fullscreen = GetSize();
+
+    if (!this->resizable) {
+        XSizeHints hints;
+        hints.flags = PMinSize | PMaxSize;
+        hints.min_width = 0;
+        hints.min_height = 0;
+        hints.max_width = 100000;
+        hints.max_height = 100000;
+        XSetWMNormalHints(platform->display, platform->window, &hints);
+        XFlush(platform->display);
+    }
+
     Atom wm_state = XInternAtom(platform->display, "_NET_WM_STATE", False);
     Atom wm_fullscreen = XInternAtom(platform->display, "_NET_WM_STATE_FULLSCREEN", False);
 
@@ -450,13 +459,11 @@ void RWindow::Fullscreen() {
     xev.xclient.data.l[3] = 1;
     xev.xclient.data.l[4] = 0;
 
-    XSendEvent(
-            platform->display,
+    XSendEvent(platform->display,
                DefaultRootWindow(platform->display),
                False,
                SubstructureNotifyMask | SubstructureRedirectMask,
-            &xev
-    );
+               &xev);
 
     XFlush(platform->display);
     fullscreen_mode = true;
@@ -491,7 +498,19 @@ void RWindow::RestoreFromFullscreen() {
             &xev
     );
 
+    if (!this->resizable) {
+        XSizeHints hints;
+        hints.flags = PMinSize | PMaxSize;
+        hints.min_width = hints.max_width = platform->size_before_fullscreen.first;
+        hints.min_height = hints.max_height = platform->size_before_fullscreen.second;
+        XSetWMNormalHints(platform->display, platform->window, &hints);
+
+        this->width = platform->size_before_fullscreen.first;
+        this->height = platform->size_before_fullscreen.second;
+    }
+
     XFlush(platform->display);
+
     fullscreen_mode = false;
     Logger::Debug(std::format("Restored '{}' from Fullscreen", this->title));
 }

src/platform/shared/Window.cpp

@@ -3,6 +3,7 @@
 #include <ReWindow/Logger.h>
 
 using namespace ReWindow;
+
 RWindow::~RWindow() {
     if (open)
         DestroyOSWindowHandle();
@@ -112,21 +113,21 @@ int RWindow::GetWidth() const { return this->width; }
 
 int RWindow::GetHeight() const { return this->height; }
 
- bool RWindow::IsResizable() const { return resizable; }
+bool RWindow::IsResizable() const { return resizable; }
 
- bool RWindow::IsFullscreen() const { return fullscreen_mode; }
+bool RWindow::IsFullscreen() const { return fullscreen_mode; }
 
- bool RWindow::IsFocused() const { return focused; }
+bool RWindow::IsFocused() const { return focused; }
 
- bool RWindow::IsVsyncEnabled() const { return vsync; }
+bool RWindow::IsVsyncEnabled() const { return vsync; }
 
- float RWindow::GetDeltaTime() const { return delta_time; }
+float RWindow::GetDeltaTime() const { return delta_time; }
 
- float RWindow::GetRefreshRate() const { return refresh_rate; }
+float RWindow::GetRefreshRate() const { return refresh_rate; }
 
 bool RWindow::SetCursorPosition(const int x, const int y) { return SetCursorPosition({x, y}); }
 
- unsigned long long RWindow::GetRefreshCount() const { return refresh_count; }
+unsigned long long RWindow::GetRefreshCount() const { return refresh_count; }
 
 void RWindow::SetSizeWithoutEvent(const std::pair<int, int>& size) {
     width = size.first;
@@ -152,8 +153,7 @@ bool RWindow::IsMouseButtonDown(const MouseButton& button) const {
 }
 
 
-void RWindow::ManagedRefresh()
-{
+void RWindow::ManagedRefresh() {
     auto begin = GetTimestamp();
     Refresh();
     auto end = GetTimestamp();
@@ -187,7 +187,7 @@ float RWindow::ComputeElapsedFrameTimeSeconds(std::chrono::steady_clock::time_po
     return frame_time_s;
 }
 
- std::chrono::steady_clock::time_point RWindow::GetTimestamp() {
+std::chrono::steady_clock::time_point RWindow::GetTimestamp() {
     return std::chrono::steady_clock::now();
 }
 
@@ -204,8 +204,7 @@ void RWindow::UpdateFrameTiming(float frame_time) {
 }
 
 
-void RWindow::processMouseWheel(int scrolls)
-{
+void RWindow::processMouseWheel(int scrolls) {
     currentMouse.Wheel += scrolls;
     auto ev = MouseWheelEvent(scrolls);
     OnMouseWheel(ev);
@@ -214,17 +213,17 @@ void RWindow::processMouseWheel(int scrolls)
     previousMouse.Wheel = currentMouse.Wheel;
 }
 
- void RWindow::Close() {
+void RWindow::Close() {
      closing = true;
      processOnClose();
- }
+}
 
- void RWindow::ForceClose() {
+void RWindow::ForceClose() {
      Close();
      DestroyOSWindowHandle();
- }
+}
 
- bool MouseState::IsDown(const MouseButton& btn) const {
+bool MouseState::IsDown(const MouseButton& btn) const {
     if (btn == MouseButtons::Left) return Buttons.LMB;
     if (btn == MouseButtons::Right) return Buttons.RMB;
     if (btn == MouseButtons::Middle) return Buttons.MMB;
@@ -234,9 +233,9 @@ void RWindow::processMouseWheel(int scrolls)
     //if (btn == MouseButtons::MWheelDown) return Buttons.MWheelDown;
 
     return false; // Unknown button?
- }
+}
 
- void MouseState::Set(const MouseButton& btn, bool state) {
+void MouseState::Set(const MouseButton& btn, bool state) {
     if (btn == MouseButtons::Left) Buttons.LMB = state;
     if (btn == MouseButtons::Right) Buttons.RMB = state;
     if (btn == MouseButtons::Middle) Buttons.MMB = state;
@@ -244,9 +243,9 @@ void RWindow::processMouseWheel(int scrolls)
     if (btn == MouseButtons::Mouse5) Buttons.SideButton2 = state;
      //if (btn == MouseButtons::MWheelUp) Buttons.MWheelUp = state;
      //if (btn == MouseButtons::MWheelDown) Buttons.MWheelDown = state;
- }
+}
 
- bool &MouseState::operator [](const MouseButton& btn) {
+bool &MouseState::operator [](const MouseButton& btn) {
     if (btn == MouseButtons::Left) return Buttons.LMB;
     if (btn == MouseButtons::Right) return Buttons.RMB;
     if (btn == MouseButtons::Middle) return Buttons.MMB;
@@ -256,4 +255,4 @@ void RWindow::processMouseWheel(int scrolls)
     //if (btn == MouseButtons::MWheelDown) return Buttons.MWheelDown;
 
     throw std::invalid_argument("Attempted to handle unmapped mouse button.");
- }
+}

src/platform/windows/Window.cpp

@@ -9,6 +9,8 @@ public:
     HINSTANCE hInstance;
     HWND hwnd;
     HDC hdc;
+    std::pair<int, int> window_size_before_fullscreen;
+    std::pair<int, int> window_position_before_fullscreen;
 };
 
 using namespace ReWindow;
@@ -253,16 +255,18 @@ void RWindow::DestroyOSWindowHandle() {
     DestroyWindow(platform->hwnd);
 }
 
-void RWindow::SetResizable(bool resizable) {
-    if (!resizable) {
+void RWindow::DisableResizing() {
     RECT rect;
     GetWindowRect(platform->hwnd, &rect);
+
     LONG style = GetWindowLong(platform->hwnd, GWL_STYLE);
     style &= ~(WS_THICKFRAME | WS_MAXIMIZEBOX);
+
     SetWindowLong(platform->hwnd, GWL_STYLE, style);
     SetWindowPos(platform->hwnd, nullptr, rect.left, rect.top, rect.right - rect.left,
     rect.bottom - rect.top, SWP_FRAMECHANGED | SWP_NOZORDER | SWP_NOOWNERZORDER);
-    }
+
+    this->resizable = false;
 }
 
 void RWindow::SetSize(int newWidth, int newHeight) {
@@ -292,13 +296,20 @@ void RWindow::SetKeyRepeatEnabled(bool state) {
     key_repeat = state;
 }
 
-
 std::pair<int, int> RWindow::GetSize() const {
     RECT rect;
     GetClientRect(platform->hwnd, &rect);
     return { (rect.right - rect.left), (rect.bottom - rect.top) };
 }
 
+std::pair<int, int> RWindow::GetPosition() const {
+    RECT rect;
+    if (GetWindowRect(platform->hwnd, &rect))
+        return { rect.left, rect.top };
+
+    return { -1, -1 };
+}
+
 void RWindow::SetPosition(int x, int y) {
     SetWindowPos(platform->hwnd, nullptr, x, y, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
 }
@@ -308,16 +319,38 @@ void RWindow::SetPosition(const std::pair<int, int>& pos) {
 }
 
 void RWindow::Fullscreen() {
-    // Implement fullscreen
+    platform->window_position_before_fullscreen = GetPosition();
+    platform->window_size_before_fullscreen = GetSize();
+
+    platform->window_position_before_fullscreen = this->GetPosition();
     SetWindowLong(platform->hwnd, GWL_STYLE, GetWindowLong(platform->hwnd, GWL_STYLE) & ~WS_OVERLAPPEDWINDOW);
     SetWindowPos(platform->hwnd, HWND_TOP, 0, 0, GetSystemMetrics(SM_CXSCREEN), GetSystemMetrics(SM_CYSCREEN), SWP_FRAMECHANGED | SWP_NOOWNERZORDER);
     fullscreen_mode = true;
 }
 
 void RWindow::RestoreFromFullscreen() {
-    // Implement restore from fullscreen
     SetWindowLong(platform->hwnd, GWL_STYLE, GetWindowLong(platform->hwnd, GWL_STYLE) | WS_OVERLAPPEDWINDOW);
-    SetWindowPos(platform->hwnd, nullptr, 0, 0, width, height, SWP_FRAMECHANGED | SWP_NOZORDER | SWP_NOOWNERZORDER);
+
+    RECT rect = {0, 0, platform->window_size_before_fullscreen.first, platform->window_size_before_fullscreen.second };
+
+    AdjustWindowRectEx(&rect, GetWindowLong(platform->hwnd, GWL_STYLE), FALSE, GetWindowLong(platform->hwnd, GWL_EXSTYLE));
+
+    int window_width = rect.right - rect.left;
+    int window_height = rect.bottom - rect.top;
+
+    SetWindowPos(
+        platform->hwnd,
+        nullptr,
+        platform->window_position_before_fullscreen.first,
+        platform->window_position_before_fullscreen.second,
+        window_width,
+        window_height,
+        SWP_FRAMECHANGED | SWP_NOZORDER | SWP_NOOWNERZORDER
+    );
+
+    DisableResizing();
+    this->width = platform->window_position_before_fullscreen.first;
+    this->height = platform->window_position_before_fullscreen.second;
     fullscreen_mode = false;
 }