Fix bug if master count < view count

This commit is contained in:
Isaac Freund 2020-03-29 17:12:44 +02:00
parent d9d9388978
commit 581de73b6f
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@ -1,5 +1,6 @@
const std = @import("std"); const std = @import("std");
const c = @import("c.zig").c; const c = @import("c.zig").c;
const util = @import("util.zig");
const Output = @import("output.zig").Output; const Output = @import("output.zig").Output;
const Server = @import("server.zig").Server; const Server = @import("server.zig").Server;
@ -130,17 +131,18 @@ pub const Root = struct {
return; return;
} }
const slave_count = if (self.master_count > self.views.len) 0 else @intCast(u32, self.views.len) - self.master_count; const master_count = util.min(u32, self.master_count, @intCast(u32, self.views.len));
const slave_count = if (master_count >= self.views.len) 0 else @intCast(u32, self.views.len) - master_count;
// This can't return null if we pass null as the reference // This can't return null if we pass null as the reference
const output_box: *c.wlr_box = c.wlr_output_layout_get_box(self.wlr_output_layout, null); const output_box: *c.wlr_box = c.wlr_output_layout_get_box(self.wlr_output_layout, null);
var master_column_width: u32 = undefined; var master_column_width: u32 = undefined;
var slave_column_width: u32 = undefined; var slave_column_width: u32 = undefined;
if (self.master_count > 0 and slave_count > 0) { if (master_count > 0 and slave_count > 0) {
// If both master and slave views are present // If both master and slave views are present
master_column_width = @floatToInt(u32, @round(@intToFloat(f64, output_box.width) * self.master_factor)); master_column_width = @floatToInt(u32, @round(@intToFloat(f64, output_box.width) * self.master_factor));
slave_column_width = @intCast(u32, output_box.width) - master_column_width; slave_column_width = @intCast(u32, output_box.width) - master_column_width;
} else if (self.master_count > 0) { } else if (master_count > 0) {
master_column_width = @intCast(u32, output_box.width); master_column_width = @intCast(u32, output_box.width);
slave_column_width = 0; slave_column_width = 0;
} else { } else {
@ -154,12 +156,12 @@ pub const Root = struct {
i += 1; i += 1;
it = node.next; it = node.next;
}) { }) {
if (i < self.master_count) { if (i < master_count) {
const view = &node.data; const view = &node.data;
// Add the remainder to the first master to ensure every pixel of height is used // Add the remainder to the first master to ensure every pixel of height is used
const master_height = @divTrunc(@intCast(u32, output_box.height), self.master_count); const master_height = @divTrunc(@intCast(u32, output_box.height), master_count);
const master_height_rem = @intCast(u32, output_box.height) % self.master_count; const master_height_rem = @intCast(u32, output_box.height) % master_count;
view.pending_state.x = 0; view.pending_state.x = 0;
view.pending_state.y = @intCast(i32, i * master_height + view.pending_state.y = @intCast(i32, i * master_height +
@ -176,12 +178,12 @@ pub const Root = struct {
const slave_height_rem = @intCast(u32, output_box.height) % slave_count; const slave_height_rem = @intCast(u32, output_box.height) % slave_count;
view.pending_state.x = @intCast(i32, master_column_width); view.pending_state.x = @intCast(i32, master_column_width);
view.pending_state.y = @intCast(i32, (i - self.master_count) * slave_height + view.pending_state.y = @intCast(i32, (i - master_count) * slave_height +
if (i > self.master_count) slave_height_rem else 0); if (i > master_count) slave_height_rem else 0);
view.pending_state.width = slave_column_width; view.pending_state.width = slave_column_width;
view.pending_state.height = slave_height + view.pending_state.height = slave_height +
if (i == self.master_count) slave_height_rem else 0; if (i == master_count) slave_height_rem else 0;
} }
} }