ui: custom window title, small title button

src/gui/app.rs

@@ -14,12 +14,15 @@
 
 use std::sync::atomic::{AtomicBool, Ordering};
 
-use egui::{Context, Modifiers};
+use egui::{Align, Context, Layout, Modifiers};
+use egui::os::OperatingSystem;
 use lazy_static::lazy_static;
 
 use crate::AppConfig;
+use crate::gui::Colors;
+use crate::gui::icons::{ARROWS_IN, ARROWS_OUT, CARET_DOWN, MOON, SUN, X};
 use crate::gui::platform::PlatformCallbacks;
-use crate::gui::views::Root;
+use crate::gui::views::{Root, View};
 
 lazy_static! {
     /// State to check if platform Back button was pressed.
@@ -69,14 +72,22 @@ impl<Platform: PlatformCallbacks> App<Platform> {
             }
         }
 
-        // Show main content.
+        // Show main content with custom frame on desktop.
-        egui::CentralPanel::default()
+        let os = OperatingSystem::from_target_os();
-            .frame(egui::Frame {
+        let custom_window = os != OperatingSystem::Android;
-                ..Default::default()
+        if custom_window {
-            })
+            custom_window_frame(ctx, |ui| {
-            .show(ctx, |ui| {
                 self.root.ui(ui, &self.platform);
             });
+        } else {
+            egui::CentralPanel::default()
+                .frame(egui::Frame {
+                    ..Default::default()
+                })
+                .show(ctx, |ui| {
+                    self.root.ui(ui, &self.platform);
+                });
+        }
     }
 }
 
@@ -85,6 +96,117 @@ impl<Platform: PlatformCallbacks> eframe::App for App<Platform> {
     fn update(&mut self, ctx: &Context, _: &mut eframe::Frame) {
         self.ui(ctx);
     }
+
+    fn clear_color(&self, _visuals: &egui::Visuals) -> [f32; 4] {
+        egui::Rgba::TRANSPARENT.to_array()
+    }
+}
+
+/// Draw custom window frame for desktop.
+fn custom_window_frame(ctx: &Context, add_contents: impl FnOnce(&mut egui::Ui)) {
+    let panel_frame = egui::Frame {
+        fill: Colors::yellow_dark(),
+        rounding: egui::Rounding {
+            nw: 8.0,
+            ne: 8.0,
+            sw: 0.0,
+            se: 0.0,
+        },
+        ..Default::default()
+    };
+
+    egui::CentralPanel::default().frame(panel_frame).show(ctx, |ui| {
+        let app_rect = ui.max_rect();
+
+        let title_bar_height = 38.0;
+        let title_bar_rect = {
+            let mut rect = app_rect;
+            rect.max.y = rect.min.y + title_bar_height;
+            rect
+        };
+        window_title_ui(ui, title_bar_rect);
+        let content_rect = {
+            let mut rect = app_rect;
+            rect.min.y = title_bar_rect.max.y;
+            rect
+        };
+        let mut content_ui = ui.child_ui(content_rect, *ui.layout());
+        add_contents(&mut content_ui);
+    });
+}
+
+/// Draw custom window title content.
+fn window_title_ui(ui: &mut egui::Ui, title_bar_rect: egui::epaint::Rect) {
+    let painter = ui.painter();
+
+    let title_bar_response = ui.interact(
+        title_bar_rect,
+        egui::Id::new("title_bar"),
+        egui::Sense::click_and_drag(),
+    );
+
+    // Paint the title.
+    painter.text(
+        title_bar_rect.center(),
+        egui::Align2::CENTER_CENTER,
+        "Grim 0.1.0",
+        egui::FontId::proportional(15.0),
+        egui::Color32::from_gray(60),
+    );
+
+    // Interact with the title bar (drag to move window):
+    if title_bar_response.double_clicked() {
+        let is_maximized = ui.input(|i| i.viewport().maximized.unwrap_or(false));
+        ui.ctx()
+            .send_viewport_cmd(egui::ViewportCommand::Maximized(!is_maximized));
+    }
+
+    if title_bar_response.drag_started_by(egui::PointerButton::Primary) {
+        ui.ctx().send_viewport_cmd(egui::ViewportCommand::StartDrag);
+    }
+
+    ui.allocate_ui_at_rect(title_bar_rect, |ui| {
+        ui.with_layout(Layout::right_to_left(Align::Center), |ui| {
+            // Draw button to close window.
+            View::title_button_small(ui, X, |_| {
+                Root::show_exit_modal();
+            });
+
+            // Draw fullscreen button.
+            let is_fullscreen = ui.ctx().input(|i| {
+                i.viewport().fullscreen.unwrap_or(false)
+            });
+            let fullscreen_icon = if is_fullscreen {
+                ARROWS_IN
+            } else {
+                ARROWS_OUT
+            };
+            View::title_button_small(ui, fullscreen_icon, |ui| {
+                ui.ctx().send_viewport_cmd(egui::ViewportCommand::Fullscreen(!is_fullscreen));
+            });
+
+            // Draw button to minimize window.
+            View::title_button_small(ui, CARET_DOWN, |ui| {
+                ui.ctx().send_viewport_cmd(egui::ViewportCommand::Minimized(true));
+            });
+
+            // Draw application icon.
+            let layout_size = ui.available_size();
+            ui.allocate_ui_with_layout(layout_size, Layout::left_to_right(Align::Center), |ui| {
+                // Draw button to minimize window.
+                let use_dark = AppConfig::dark_theme().unwrap_or(false);
+                let theme_icon = if use_dark {
+                    SUN
+                } else {
+                    MOON
+                };
+                View::title_button_small(ui, theme_icon, |ui| {
+                    AppConfig::set_dark_theme(!use_dark);
+                    crate::setup_visuals(ui.ctx());
+                });
+            });
+        });
+    });
 }
 
 #[allow(dead_code)]

src/gui/colors.rs

@@ -28,6 +28,7 @@ const DARK_SEMI_TRANSPARENT: Color32 = Color32::from_black_alpha(170);
 const GOLD: Color32 = Color32::from_rgb(255, 215, 0);
 
 const YELLOW: Color32 = Color32::from_rgb(254, 241, 2);
+const YELLOW_DARK: Color32 = Color32::from_rgb(239, 229, 3);
 
 const GREEN: Color32 = Color32::from_rgb(0, 0x64, 0);
 
@@ -118,6 +119,10 @@ impl Colors {
         YELLOW
     }
 
+    pub fn yellow_dark() -> Color32 {
+        YELLOW_DARK
+    }
+
     pub fn green() -> Color32 {
         if use_dark() {
             GREEN.linear_multiply(1.3)

src/gui/views/network/content.rs

@@ -202,7 +202,7 @@ impl NetworkContent {
         // Draw title panel.
         TitlePanel::ui(TitleType::Single(title_content), |ui| {
             if !show_connections {
-                View::title_button(ui, DOTS_THREE_OUTLINE_VERTICAL, || {
+                View::title_button_big(ui, DOTS_THREE_OUTLINE_VERTICAL, |_| {
                     AppConfig::toggle_show_connections_network_panel();
                     if AppConfig::show_connections_network_panel() {
                         ExternalConnection::start_ext_conn_availability_check();
@@ -211,7 +211,7 @@ impl NetworkContent {
             }
         }, |ui| {
             if !Root::is_dual_panel_mode(ui) {
-                View::title_button(ui, BRIEFCASE, || {
+                View::title_button_big(ui, BRIEFCASE, |_| {
                     Root::toggle_network_panel();
                 });
             }

src/gui/views/root.rs

@@ -113,13 +113,7 @@ impl Root {
                 ..Default::default()
             })
             .show_animated_inside(ui, is_panel_open, |ui| {
-                // Set content height as window height.
+                self.network.ui(ui, cb);
-                let mut rect = ui.available_rect_before_wrap();
-                let window_size = View::window_size(ui);
-                rect.set_height(window_size.1);
-                ui.allocate_ui_at_rect(rect, |ui| {
-                    self.network.ui(ui, cb);
-                });
             });
 
         // Show wallets content.
@@ -129,13 +123,7 @@ impl Root {
                 ..Default::default()
             })
             .show_inside(ui, |ui| {
-                // Set content height as window height.
+                self.wallets.ui(ui, cb);
-                let mut rect = ui.available_rect_before_wrap();
-                let window_size = View::window_size(ui);
-                rect.set_height(window_size.1);
-                ui.allocate_ui_at_rect(rect, |ui| {
-                    self.wallets.ui(ui, cb);
-                });
             });
 
         // Show integrated node warning on Android if needed.

src/gui/views/views.rs

@@ -77,7 +77,6 @@ impl View {
 
     /// Get width and height of app window.
     pub fn window_size(ui: &mut egui::Ui) -> (f32, f32) {
-
         ui.ctx().input(|i| {
             return match i.viewport().inner_rect {
                 None => {
@@ -179,8 +178,18 @@ impl View {
         false
     }
 
-    /// Title button with transparent background fill color, contains only icon.
+    /// Draw big size title button.
-    pub fn title_button(ui: &mut egui::Ui, icon: &str, action: impl FnOnce()) {
+    pub fn title_button_big(ui: &mut egui::Ui, icon: &str, action: impl FnOnce(&mut egui::Ui)) {
+        Self::title_button(ui, 22.0, icon, action);
+    }
+
+    /// Draw small size title button.
+    pub fn title_button_small(ui: &mut egui::Ui, icon: &str, action: impl FnOnce(&mut egui::Ui)) {
+        Self::title_button(ui, 17.0, icon, action);
+    }
+
+    /// Draw title button with transparent background color, contains only icon.
+    fn title_button(ui: &mut egui::Ui, size: f32, icon: &str, action: impl FnOnce(&mut egui::Ui)) {
         ui.scope(|ui| {
             // Disable strokes.
             ui.style_mut().visuals.widgets.inactive.bg_stroke = Stroke::NONE;
@@ -190,7 +199,7 @@ impl View {
             ui.style_mut().visuals.widgets.active.expansion = 0.0;
 
             // Setup text.
-            let wt = RichText::new(icon.to_string()).size(22.0).color(Colors::title(true));
+            let wt = RichText::new(icon.to_string()).size(size).color(Colors::title(true));
             // Draw button.
             let br = Button::new(wt)
                 .fill(Colors::TRANSPARENT)
@@ -198,7 +207,7 @@ impl View {
                 .on_hover_cursor(CursorIcon::PointingHand);
             br.surrender_focus();
             if Self::touched(ui, br) {
-                (action)();
+                (action)(ui);
             }
         });
     }

src/gui/views/wallets/content.rs

@@ -263,11 +263,11 @@ impl WalletsContent {
         // Draw title panel.
         TitlePanel::ui(title_content, |ui| {
             if show_wallet && !dual_panel {
-                View::title_button(ui, ARROW_LEFT, || {
+                View::title_button_big(ui, ARROW_LEFT, |_| {
                     self.wallets.select(None);
                 });
             } else if create_wallet {
-                View::title_button(ui, ARROW_LEFT, || {
+                View::title_button_big(ui, ARROW_LEFT, |_| {
                     self.creation_content.back();
                 });
             } else if show_wallet && dual_panel {
@@ -276,17 +276,17 @@ impl WalletsContent {
                 } else {
                     SUITCASE
                 };
-                View::title_button(ui, list_icon, || {
+                View::title_button_big(ui, list_icon, |_| {
                     self.show_wallets_at_dual_panel = !show_list;
                     AppConfig::toggle_show_wallets_at_dual_panel();
                 });
             } else if !Root::is_dual_panel_mode(ui) {
-                View::title_button(ui, GLOBE, || {
+                View::title_button_big(ui, GLOBE, |_| {
                     Root::toggle_network_panel();
                 });
             };
         }, |ui| {
-            View::title_button(ui, GEAR, || {
+            View::title_button_big(ui, GEAR, |_| {
                 // Show settings modal.
                 Modal::new(Root::SETTINGS_MODAL)
                     .position(ModalPosition::CenterTop)

src/main.rs

@@ -12,9 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use grim::gui::App;
-use grim::gui::platform::Desktop;
-
 pub fn main() {
     #[allow(dead_code)]
     #[cfg(not(target_os = "android"))]
@@ -54,8 +51,7 @@ fn real_main() {
     // Setup window size.
     let (width, height) = AppConfig::window_size();
 
-    let mut viewport = egui::ViewportBuilder::default()
+    let mut viewport = egui::ViewportBuilder::default().with_inner_size([width, height]);
-        .with_inner_size([width, height]);
 
     // Setup an icon.
     if let Ok(icon) = from_png_bytes(include_bytes!("../img/icon.png")) {
@@ -67,6 +63,11 @@ fn real_main() {
         viewport = viewport.with_position(pos2(x, y));
     }
 
+    // Setup window decorations.
+    viewport = viewport
+        .with_transparent(true)
+        .with_decorations(false);
+
     let mut options = eframe::NativeOptions {
         viewport,
         ..Default::default()