improve theming

* add option to center center vertically, this
  makes it possible to show full screen dialogs
  which centered elements. i.e. for an exit dialog
* improve dynamic line and update themes

styles/AmberNight/config.toml

@@ -3,3 +3,4 @@ allow_images=true
 term="kitty -e"
 insensitive=true
 key_detection_type="Code"
+lines_size_factor=1.9

styles/IndigoEdge/config.toml

@@ -4,3 +4,4 @@ term="kitty -e"
 insensitive=true
 key_detection_type="Code"
 blurred_background=false
+lines_size_factor=1.9

styles/launcher/style.css

@@ -13,6 +13,7 @@
 * {
   font-family: var(--font);
   box-sizing: border-box;
+  outline: none;
 }
 
 #background {
@@ -79,8 +80,6 @@
   background-color: rgba(32, 32, 32, 0);
   padding: 1rem;
   margin: 1rem;
-  border-radius: 0.5rem;
-  border-bottom: 5px solid rgba(32, 32, 32, 0.1);
   display: flex;
   flex-direction: column;
   align-items: center;
@@ -96,7 +95,7 @@
 #entry:selected {
   color: #fff;
   background-color: var(--entry-selected);
-  border-bottom: 5px solid var(--search-border);
+  border-bottom: 3px solid var(--search-border);
   border-bottom-left-radius: 0;
   border-bottom-right-radius: 0;
 }
@@ -120,4 +119,5 @@
 #row:hover {
   background-color: transparent;
   outline: inherit;
+  border-width: 0;
 }

worf/src/lib/config.rs

@@ -307,6 +307,10 @@ pub struct Config {
     #[clap(long = "line-additional-space")]
     lines_additional_space: Option<i32>,
 
+    /// factor to multiple the line height with.
+    #[clap(long = "lines-size-factor")]
+    lines_size_factor: Option<f64>,
+
     #[clap(short = 'w', long = "columns")]
     columns: Option<u32>,
 
@@ -333,6 +337,10 @@ pub struct Config {
     #[clap(long = "content-halign")]
     content_halign: Option<Align>,
 
+    /// center content on vertical axis
+    #[clap(long = "content-vcenter")]
+    content_vcenter: Option<bool>,
+
     /// Vertical alignment
     #[clap(long = "valign")]
     valign: Option<Align>,
@@ -490,6 +498,11 @@ impl Config {
         self.content_halign.unwrap_or(Align::Fill)
     }
 
+    #[must_use]
+    pub fn content_vcenter(&self) -> bool {
+        self.content_vcenter.unwrap_or(false)
+    }
+
     #[must_use]
     pub fn valign(&self) -> Align {
         self.valign.unwrap_or(Align::Center)
@@ -642,6 +655,11 @@ impl Config {
         self.lines_additional_space.unwrap_or(0)
     }
 
+    #[must_use]
+    pub fn lines_size_factor(&self) -> f64 {
+        self.lines_size_factor.unwrap_or(1.4)
+    }
+
     #[must_use]
     pub fn version(&self) -> bool {
         self.version

worf/src/lib/gui.rs

@@ -777,7 +777,7 @@ fn build_main_box<T: Clone + 'static>(config: &Config, ui_elements: &Rc<UiElemen
     ui_elements.main_box.set_widget_name("inner-box");
     ui_elements.main_box.set_css_classes(&["inner-box"]);
     ui_elements.main_box.set_hexpand(true);
-    ui_elements.main_box.set_vexpand(false);
+    ui_elements.main_box.set_vexpand(config.content_vcenter());
 
     ui_elements
         .main_box
@@ -1258,15 +1258,10 @@ fn calculate_row_height<T: Clone + 'static>(
             .find_map(|(fb, _)| {
                 let (_, _, _, baseline) = fb.measure(Orientation::Vertical, MEAS_SIZE);
                 if baseline > 0 {
-                    let factor = if lines > 1 {
-                        1.4 // todo find a better way to do this
-                    // most likely it will not work with all styles
-                    } else {
-                        1.0
-                    };
+                    let factor = config.lines_size_factor();
 
                     if config.allow_images() && baseline < i32::from(config.image_size()) {
-                        Some(i32::from(config.image_size()))
+                        Some((f64::from(i32::from(config.image_size())) * factor) as i32)
                     } else {
                         Some((f64::from(baseline) * factor) as i32)
                     }
@@ -1283,7 +1278,7 @@ fn calculate_row_height<T: Clone + 'static>(
     };
 
     log::debug!(
-        "heights: scroll {scroll_height}, window {window_height}, keys {height_box}, height {height:?}"
+        "heights: scroll {scroll_height}, window {window_height}, keys {height_box}, height {height:?}, lines {lines:?}"
     );
 
     height_box