604cf98047
Since we often need to pass these args back C code, keeping the 0 byte around saves some allocations.
80 lines
3.0 KiB
Zig
80 lines
3.0 KiB
Zig
// This file is part of river, a dynamic tiling wayland compositor.
|
|
//
|
|
// Copyright 2020 The River Developers
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
const std = @import("std");
|
|
|
|
const server = &@import("../main.zig").server;
|
|
|
|
const Error = @import("../command.zig").Error;
|
|
const Seat = @import("../Seat.zig");
|
|
const View = @import("../View.zig");
|
|
const ViewStack = @import("../view_stack.zig").ViewStack;
|
|
|
|
fn opacityUpdateFilter(view: *View, context: void) bool {
|
|
// We want to update all views
|
|
return true;
|
|
}
|
|
|
|
pub fn opacity(
|
|
allocator: *std.mem.Allocator,
|
|
seat: *Seat,
|
|
args: []const [:0]const u8,
|
|
out: *?[]const u8,
|
|
) Error!void {
|
|
if (args.len < 6) return Error.NotEnoughArguments;
|
|
if (args.len > 6) return Error.TooManyArguments;
|
|
|
|
// Focused opacity
|
|
server.config.opacity.focused = try std.fmt.parseFloat(f32, args[1]);
|
|
if (server.config.opacity.focused < 0.0 or server.config.opacity.focused > 1.0)
|
|
return Error.InvalidValue;
|
|
|
|
// Unfocused opacity
|
|
server.config.opacity.unfocused = try std.fmt.parseFloat(f32, args[2]);
|
|
if (server.config.opacity.unfocused < 0.0 or server.config.opacity.unfocused > 1.0)
|
|
return Error.InvalidValue;
|
|
|
|
// Starting opacity for new views
|
|
server.config.opacity.initial = try std.fmt.parseFloat(f32, args[3]);
|
|
if (server.config.opacity.initial < 0.0 or server.config.opacity.initial > 1.0)
|
|
return Error.InvalidValue;
|
|
|
|
// Opacity transition step
|
|
server.config.opacity.delta = try std.fmt.parseFloat(f32, args[4]);
|
|
if (server.config.opacity.delta < 0.0 or server.config.opacity.delta > 1.0)
|
|
return Error.InvalidValue;
|
|
|
|
// Time between step
|
|
server.config.opacity.delta_t = try std.fmt.parseInt(u31, args[5], 10);
|
|
if (server.config.opacity.delta_t < 1) return Error.InvalidValue;
|
|
|
|
// Update opacity of all views
|
|
// Unmapped views will be skipped, however their opacity gets updated on map anyway
|
|
var oit = server.root.outputs.first;
|
|
while (oit) |onode| : (oit = onode.next) {
|
|
var vit = ViewStack(View).iter(onode.data.views.first, .forward, {}, opacityUpdateFilter);
|
|
while (vit.next()) |vnode| {
|
|
if (vnode.current.focus > 0) {
|
|
vnode.pending.target_opacity = server.config.opacity.focused;
|
|
} else {
|
|
vnode.pending.target_opacity = server.config.opacity.unfocused;
|
|
}
|
|
}
|
|
}
|
|
server.root.startTransaction();
|
|
}
|