From dda61ec788ad3224037399d0602e1b98ed026929 Mon Sep 17 00:00:00 2001
From: Janis <janis@nirgendwo.xyz>
Date: Wed, 21 Dec 2022 14:17:35 +0100
Subject: [PATCH] can draw dimensions of selection

---
 box.zig  | 20 ++++++++++++++++++++
 main.zig | 51 ++++++++++++++++++++++++++++++++-------------------
 2 files changed, 52 insertions(+), 19 deletions(-)

diff --git a/box.zig b/box.zig
index c4b4e44..4441980 100644
--- a/box.zig
+++ b/box.zig
@@ -161,6 +161,26 @@ pub const Box = struct {
         return getInner(T, self.position.y);
     }
 
+    /// lowest X-axis value
+    pub fn getLeftMost(self: *const Self, comptime T: anytype) T {
+        return getInner(T, self.position.x);
+    }
+
+    /// highest X-axis value
+    pub fn getRightMost(self: *const Self, comptime T: anytype) T {
+        return getInner(T, self.position.x + self.getWidth(isize));
+    }
+
+    /// lowest Y-axis value
+    pub fn getTopMost(self: *const Self, comptime T: anytype) T {
+        return getInner(T, self.position.y);
+    }
+
+    /// highest Y-axis value
+    pub fn getBottomMost(self: *const Self, comptime T: anytype) T {
+        return getInner(T, self.position.y + self.getHeight(isize));
+    }
+
     pub fn getWidth(self: *const Self, comptime T: anytype) T {
         return getInner(T, self.extents.width);
     }
diff --git a/main.zig b/main.zig
index c630c3b..66ba77b 100644
--- a/main.zig
+++ b/main.zig
@@ -246,8 +246,6 @@ const Output = struct {
     frame_callback: ?*wl.Callback = null,
 
     fn init(self: *Self, state: *State.Init) !void {
-        std.debug.print("output.init()\n", .{});
-
         self.state = state;
         try self.buffers.init(state);
 
@@ -299,6 +297,30 @@ const Output = struct {
         );
     }
 
+    fn drawDimensions(self: *Self, c: *Cairo.cairo_t, color: u32, box: *const Box) void {
+        const opts = self.state.getOptions();
+                    const font_family = if (opts.@"font-family") |ff| ff.ptr else null;
+                    Cairo.cairo_select_font_face(c,
+                                                 font_family,
+                                                 Cairo.CAIRO_FONT_SLANT_NORMAL,
+                                                 Cairo.CAIRO_FONT_WEIGHT_NORMAL,
+                                                 );
+                    Cairo.cairo_set_font_size(c, 14);
+                    setSourceU32(c, color);
+                    var buffer = [_]u8{0} ** 12;
+                    const printed = std.fmt.bufPrint(&buffer,
+                                     "{}x{}",
+                                     .{box.extents.width, box.extents.height}) catch null;
+
+                    if (printed) |str| {
+                        Cairo.cairo_move_to(c,
+                                            box.getRightMost(f64) + 10.0,
+                                            box.getBottomMost(f64) + 10.0,
+                                            );
+                        Cairo.cairo_show_text(c, @ptrCast([*c]const u8, str.ptr));
+                    }
+    }
+
     fn render(self: *Self, buffer: *Buffer) void {
         const cairo = &buffer.cairo;
         const opts = self.state.getOptions();
@@ -310,7 +332,6 @@ const Output = struct {
 
         // draw in_boxes
         if (self.state.config.in_boxes) |boxes| {
-            std.debug.print("in_boxes: {}\n", .{boxes});
             var iter = boxes.iter();
             while (iter.next()) |box| {
                 if (box.intersects(&self.logical_geometry)) {
@@ -318,6 +339,10 @@ const Output = struct {
 
                     drawRect(buffer, corrected_box, opts.choice);
                     Cairo.cairo_fill(cairo.ctx);
+
+                    if (opts.@"display-dimensions") {
+                        self.drawDimensions(cairo.ctx, opts.border, box);
+                    }
                 }
             }
         }
@@ -343,7 +368,9 @@ const Output = struct {
                 drawRect(buffer, corrected_box, opts.border);
                 Cairo.cairo_stroke(cairo.ctx);
 
-                // TODO: draw dimensions
+                if (opts.@"display-dimensions") {
+                    self.drawDimensions(cairo.ctx, opts.border, &box);
+                }
             }
         }
     }
@@ -411,8 +438,6 @@ const Output = struct {
                 if (self.needs_redraw) {
                     self.commitFrame();
                 }
-
-                std.debug.print("frame_callback done\n", .{});
             },
         }
     }
@@ -566,7 +591,6 @@ const Seat = struct {
     fn init(self: *Self, state: *State.Init) void {
         self.state = state;
 
-        std.debug.print("seat.init()\n", .{});
         self.seat.setListener(*Self, seatListener, self);
     }
 
@@ -719,13 +743,6 @@ const Seat = struct {
                 if (self.keyboard.?.xkb) |xkb_| {
                     const keysym = xkb.xkb_state_key_get_one_sym(xkb_.state, key.key + 8);
 
-                    // const buf_len = 32;
-                    // const buf = self.state.ally.alloc(u8, buf_len) catch null;
-                    // if (buf) |buffer| {
-                    //     _ = xkb.xkb_keysym_get_name(keysym, @ptrCast([*c]u8, buffer), buf_len);
-                    //     std.debug.print("key: {s} {s}\n", .{buffer, if (key.state == .pressed) "pressed" else "released"});
-                    // }
-
                     switch (key.state) {
                         .pressed => {
                             switch (keysym) {
@@ -1083,7 +1100,6 @@ const State = struct {
         fn registryListener(registry: *wl.Registry, event: wl.Registry.Event, self: *Self) void {
             _ = registry;
             _ = self;
-            std.debug.print("registryListener called after init", .{});
             switch (event) {
                 .global => {},
                 .global_remove => {},
@@ -1166,7 +1182,7 @@ const Args = struct {
     selection: u32 = 0x00000000,
     choice: u32 = 0xFFFFFF40,
     format: ?[]const u8 = null,
-    @"font-family": ?[]const u8 = null,
+    @"font-family": ?[]const u8 = "sans-serif",
     @"border-weight": u32 = 2,
     @"single-point": bool = false,
     @"output-boxes": bool = false,
@@ -1251,9 +1267,6 @@ const Input = struct {
 };
 
 pub fn run(ally: std.mem.Allocator) !void {
-    // Prints to stderr (it's a shortcut based on `std.io.getStdErr()`)
-    std.debug.print("All your {s} are belong to us.\n", .{"codebase"});
-
     const state = try State.Uninit.create(ally);
     const init = try state.intoInit();
     defer init.deinit();