Add borderless window mode (from tasks) (#630)

res/layouts/pages/settings_display.xml.lua

@@ -53,10 +53,18 @@ function create_checkbox(id, name, tooltip)
     ))
 end
 
+function create_selectbox(id, name, tooltip)
+    tooltip = tooltip or ''
+    document.root:add(string.format(
+        "<selectbox consumer='function(x) core.set_setting(\"%s\", x) end' checked='%s' tooltip='%s'>%s</checkbox>", 
+        id, core.str_setting(id), gui.str(tooltip, "settings"), gui.str(name, "settings")
+    ))
+end
+
 function on_open()
     create_setting("camera.fov", "FOV", 1, "°")
     create_setting("display.framerate", "Framerate", 1, "", "", true)
-    create_checkbox("display.fullscreen", "Fullscreen")
+    --create_checkbox("display.fullscreen", "Fullscreen")
     create_checkbox("camera.shaking", "Camera Shaking")
     create_checkbox("camera.inertia", "Camera Inertia")
     create_checkbox("camera.fov-effects", "Camera FOV Effects")

src/engine/Engine.cpp

@@ -135,10 +135,11 @@ void Engine::initializeClient() {
     if (ENGINE_DEBUG_BUILD) {
         menus::create_version_label(*gui);
     }
-    keepAlive(settings.display.fullscreen.observe(
-        [this](bool value) {
-            if (value != this->window->isFullscreen()) {
-                this->window->toggleFullscreen();
+    keepAlive(settings.display.windowMode.observe(
+        [this](int value) {
+            WindowMode mode = static_cast<WindowMode>(value);
+            if (mode != this->window->getMode()) {
+                this->window->setMode(mode);
             }
         },
         true
@@ -237,7 +238,11 @@ void Engine::updateHotkeys() {
         gui->toggleDebug();
     }
     if (input->jpressed(Keycode::F11)) {
-        settings.display.fullscreen.toggle();
+        if (settings.display.windowMode.get() != static_cast<int>(WindowMode::FULLSCREEN)) {
+            settings.display.windowMode.set(static_cast<int>(WindowMode::FULLSCREEN));
+        } else {
+            settings.display.windowMode.set(static_cast<int>(WindowMode::WINDOWED));
+        }
     }
 }
 

src/io/settings_io.cpp

@@ -49,8 +49,8 @@ SettingsHandler::SettingsHandler(EngineSettings& settings) {
     builder.add("height", &settings.display.height);
     builder.add("samples", &settings.display.samples);
     builder.add("framerate", &settings.display.framerate);
-    builder.add("fullscreen", &settings.display.fullscreen);
     builder.add("limit-fps-iconified", &settings.display.limitFpsIconified);
+    builder.add("window-mode", &settings.display.windowMode);
 
     builder.section("camera");
     builder.add("sensitivity", &settings.camera.sensitivity);

src/settings.hpp

@@ -19,8 +19,8 @@ struct AudioSettings {
 };
 
 struct DisplaySettings {
-    /// @brief Is window in full screen mode
-    FlagSetting fullscreen {false};
+    /// @brief Window mode (windowed/fullscreen/borderless)
+    IntegerSetting windowMode {0, 0, 2};
     /// @brief Window width (pixels)
     IntegerSetting width {1280};
     /// @brief Window height (pixels)

src/window/Window.hpp

@@ -10,6 +10,12 @@ class ImageData;
 class Input;
 struct DisplaySettings;
 
+enum class WindowMode {
+    WINDOWED,
+    FULLSCREEN,
+    BORDERLESS
+};
+
 class Window {
 public:
     Window(glm::ivec2 size) : size(std::move(size)) {}
@@ -25,8 +31,8 @@ public:
     virtual void setShouldClose(bool flag) = 0;
 
     virtual void setCursor(CursorShape shape) = 0;
-    virtual void toggleFullscreen() = 0;
-    virtual bool isFullscreen() const = 0;
+    virtual void setMode(WindowMode mode) = 0;
+    virtual WindowMode getMode() const = 0;
 
     virtual void setIcon(const ImageData* image) = 0;
 
@@ -51,6 +57,7 @@ public:
     > initialize(DisplaySettings* settings, std::string title);
 protected:
     glm::ivec2 size;
+    WindowMode mode = WindowMode::WINDOWED;
 };
 
 namespace display {

src/window/detail/GLFWWindow.cpp

@@ -406,21 +406,28 @@ public:
         glfwSetCursor(window, standard_cursors[static_cast<int>(shape)]);
     }
 
-    void toggleFullscreen() override {
-        fullscreen = !fullscreen;
-    
+    void setMode(WindowMode mode) override {
+        Window::mode = mode;
         GLFWmonitor* monitor = glfwGetPrimaryMonitor();
-        const GLFWvidmode* mode = glfwGetVideoMode(monitor);
+        const GLFWvidmode* glfwMode = glfwGetVideoMode(monitor);
     
         if (input.isCursorLocked()){
             input.toggleCursor();
         }
-    
-        if (fullscreen) {
+
+        if (mode == WindowMode::FULLSCREEN) {
+            const int width = glfwMode->width;
+            const int height = glfwMode->height;
+            const int refreshRate = glfwMode->refreshRate;
             glfwGetWindowPos(window, &posX, &posY);
-            glfwSetWindowMonitor(
-                window, monitor, 0, 0, mode->width, mode->height, mode->refreshRate
-            );
+            glfwSetWindowMonitor(window, monitor, 0, 0, width, height, refreshRate);
+        }
+        else if(mode == WindowMode::BORDERLESS) {
+            glfwGetWindowPos(window, &posX, &posY);
+            glfwSetWindowAttrib(window, GLFW_DECORATED, GLFW_FALSE);
+            glfwSetWindowAttrib(window, GLFW_RESIZABLE, GLFW_FALSE);
+            glfwSetWindowSize(window, glfwMode->width, glfwMode->height);
+            glfwSetWindowPos(window, 0, 0);
         } else {
             glfwSetWindowMonitor(
                 window,
@@ -431,6 +438,8 @@ public:
                 settings->height.get(),
                 GLFW_DONT_CARE
             );
+            glfwSetWindowAttrib(window, GLFW_DECORATED, GLFW_TRUE);
+            glfwSetWindowAttrib(window, GLFW_RESIZABLE, GLFW_TRUE);
             window_size_callback(window, settings->width.get(), settings->height.get());
         }
     
@@ -439,8 +448,8 @@ public:
         input.setCursorPosition(xPos, yPos);
     }
 
-    bool isFullscreen() const override {
-        return fullscreen;
+    WindowMode getMode() const override {
+        return mode;
     }
 
     void setIcon(const ImageData* image) override {
@@ -459,7 +468,7 @@ public:
         glViewport(0, 0, width, height);
         size = {width, height};
 
-        if (!isFullscreen() && !isMaximized()) {
+        if (mode == WindowMode::WINDOWED && !isMaximized()) {
             settings->width.set(width);
             settings->height.set(height);
         }
@@ -542,7 +551,6 @@ public:
 private:
     GLFWwindow* window;
     CursorShape cursor = CursorShape::ARROW;
-    bool fullscreen = false;
     int framerate = -1;
     std::stack<glm::vec4> scissorStack;
     glm::vec4 scissorArea;
@@ -600,7 +608,7 @@ static void cursor_pos_callback(GLFWwindow* window, double xpos, double ypos) {
 
 static void iconify_callback(GLFWwindow* window, int iconified) {
     auto handler = static_cast<GLFWWindow*>(glfwGetWindowUserPointer(window));
-    if (handler->isFullscreen() && iconified == 0) {
+    if (handler->getMode() == WindowMode::FULLSCREEN && iconified == 0) {
         GLFWmonitor* monitor = glfwGetPrimaryMonitor();
         const GLFWvidmode* mode = glfwGetVideoMode(monitor);
         glfwSetWindowMonitor(