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Add change_ratio keybind

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Ben Buhse 2026-01-30 21:47:16 -06:00
commit 365c000b6e
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5 changed files with 49 additions and 16 deletions
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22
src/WindowManager.zig
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@ -4,8 +4,6 @@
const WindowManager = @This();
const PRIMARY_RATIO: f32 = 0.55;
const MIN_RIVER_SEAT_V1_VERSION: u2 = 3;
context: *Context,
@ -18,6 +16,15 @@ windows: wl.list.Head(Window, .link),
window_count: u8 = 0,
primary_ratio: f32 = 0.55,
/// State consumed in manage phase, reset at end of manage_start().
pending_manage: PendingManage = .{},
pub const PendingManage = struct {
primary_ratio: ?f32 = null,
};
pub fn create(context: *Context, window_manager_v1: *river.WindowManagerV1) !*WindowManager {
const wm = try utils.allocator.create(WindowManager);
errdefer wm.destroy();
@ -133,7 +140,7 @@ fn calculatePrimaryStackLayout(wm: *WindowManager) void {
} else {
// Multiple windows: primary/stack layout
// TODO: Support multiple windows in primary stack
const primary_width: u31 = @intFromFloat(@as(f32, @floatFromInt(output_width)) * PRIMARY_RATIO);
const primary_width: u31 = @intFromFloat(@as(f32, @floatFromInt(output_width)) * wm.primary_ratio);
const stack_width: u31 = output_width - primary_width;
const stack_count = active_count - 1;
const stack_height: u31 = @divFloor(output_height, stack_count);
@ -175,6 +182,8 @@ fn calculatePrimaryStackLayout(wm: *WindowManager) void {
}
fn manage_start(wm: *WindowManager) void {
defer wm.pending_manage = .{};
const river_window_manager_v1 = wm.river_window_manager_v1;
const context = wm.context;
if (!context.initialized) {
@ -211,6 +220,13 @@ fn manage_start(wm: *WindowManager) void {
}
}
// Manage the WM itself first
if (wm.pending_manage.primary_ratio) |primary_ratio| {
// Ratios outside of this range can cause crashes anyways (when doing the layout calulcation)
std.debug.assert(primary_ratio >= 0.10 and primary_ratio <= 0.90);
wm.primary_ratio = primary_ratio;
}
{
var it = wm.outputs.iterator(.forward);
while (it.next()) |output| {