Класные таббары

src/icons.zig

@@ -5,3 +5,5 @@ pub const ellipse = dvui.entypo.circle;
 pub const arc = dvui.entypo.loop;
 pub const broken = dvui.entypo.flow_line;
 pub const trash = dvui.entypo.trash;
+pub const cross = dvui.entypo.cross;
+pub const plus = dvui.entypo.plus;

src/ui/left_panel.zig

@@ -77,7 +77,7 @@ fn objectTreeRow(open_doc: *WindowContext.OpenDocument, obj: *Object, depth: u32
             if (hovered) {
                 const delete_opts: dvui.Options = .{
                     .id_extra = row_id +% 1,
-                    .margin = dvui.Rect{ .x = 4 },
+                    .margin = dvui.Rect{ .x = 4, .w = 6 },
                     .padding = dvui.Rect.all(2),
                     .gravity_y = 0.5,
                     .gravity_x = 1.0,

src/ui/tab_bar.zig

@@ -1,22 +1,112 @@
 const std = @import("std");
 const dvui = @import("dvui");
+const icons = @import("../icons.zig");
 const WindowContext = @import("../WindowContext.zig");
 
+const DocCallback = union(enum) {
+    select: usize,
+    close: usize,
+};
+
+fn documentTab(ctx: *WindowContext, index: usize, callback: *?DocCallback) void {
+    const row_id: usize = index;
+    const is_selected = if (ctx.active_document_index) |active| active == index else false;
+    const focus_color = dvui.themeGet().focus;
+
+    var row = dvui.box(
+        @src(),
+        .{ .dir = .horizontal },
+        .{
+            .id_extra = row_id,
+            .expand = .none,
+            .gravity_y = 0.5,
+        },
+    );
+    {
+        var hovered: bool = false;
+        var select_row: bool = false;
+        const row_data = row.data();
+
+        // Ручная обработка hover/click по строке без пометки события как handled,
+        // чтобы кнопка закрытия могла нормально получать свои события.
+        for (dvui.events()) |*e| {
+            switch (e.evt) {
+                .mouse => |*mouse| {
+                    if (!dvui.eventMatchSimple(e, row_data)) continue;
+                    hovered = true;
+                    if (mouse.action == .press and mouse.button == .left) {
+                        select_row = true;
+                    }
+                },
+                else => {},
+            }
+        }
+
+        var overlay = dvui.overlay(@src(), .{
+            .margin = dvui.Rect{ .x = 4, .w = 4 },
+            .padding = dvui.Rect{ .x = 12, .y = 0, .w = 0, .h = 0 },
+            .background = is_selected or hovered,
+            .color_fill = if (is_selected) focus_color.opacity(0.35) else if (hovered) focus_color.opacity(0.18) else null,
+            .corner_radius = dvui.Rect.all(4),
+        });
+        {
+            var buf: [32]u8 = undefined;
+            const label = std.fmt.bufPrint(&buf, "Doc {d}", .{index + 1}) catch "Doc";
+            dvui.labelNoFmt(@src(), label, .{}, .{
+                .gravity_x = 0.5,
+                .gravity_y = 0.5,
+                .margin = .{ .w = 24 },
+            });
+
+            if (hovered) {
+                if (dvui.buttonIcon(@src(), "Close", icons.cross, .{}, .{}, .{
+                    .id_extra = row_id +% 1,
+                    .margin = dvui.Rect{ .x = 8, .w = 6 },
+                    .padding = dvui.Rect.all(2),
+                    .gravity_x = 1,
+                    .gravity_y = 0.5,
+                })) {
+                    callback.* = .{ .close = index };
+                }
+            }
+        }
+        overlay.deinit();
+
+        if (select_row) {
+            callback.* = .{ .select = index };
+        }
+    }
+    row.deinit();
+}
+
 pub fn tabBar(ctx: *WindowContext) void {
     var bar = dvui.box(
         @src(),
         .{ .dir = .horizontal },
-        .{ .expand = .horizontal, .min_size_content = .{ .h = 32 }, .background = true, .padding = dvui.Rect.all(4) },
+        .{
+            .expand = .horizontal,
+            .background = true,
+            .padding = .{
+                .x = 12,
+                .w = 12,
+            },
+        },
     );
     {
+        var callback: ?DocCallback = null;
         for (ctx.documents.items, 0..) |_, i| {
-            var buf: [32]u8 = undefined;
-            const label = std.fmt.bufPrint(&buf, "Doc {d}", .{i + 1}) catch "Doc";
-            if (dvui.button(@src(), label, .{}, .{ .id_extra = i })) {
-                ctx.setActiveDocument(i);
+            documentTab(ctx, i, &callback);
+        }
+        if (callback) |action| {
+            switch (action) {
+                .select => |index| ctx.setActiveDocument(index),
+                .close => |index| ctx.closeDocument(index),
             }
         }
-        if (dvui.button(@src(), "+", .{}, .{})) {
+
+        if (dvui.buttonIcon(@src(), "Create", icons.plus, .{}, .{}, .{
+            .gravity_y = 0,
+        })) {
             ctx.addNewDocument() catch |err| {
                 std.debug.print("addNewDocument error: {}\n", .{err});
             };