Modify default layout to allow master area on all four sides

Also move it into a separate function
This commit is contained in:
Leon Henrik Plickat 2020-05-18 19:22:48 +02:00 committed by Isaac Freund
parent cee41e925d
commit b40c5d912e

View File

@ -147,6 +147,182 @@ pub fn getRenderer(self: Self) *c.wlr_renderer {
return c.river_wlr_backend_get_renderer(self.wlr_output.backend);
}
const MasterPosition = enum {
Top,
Right,
Bottom,
Left,
};
/// Default layout of master-stack and slave-stack.
pub fn layoutMasterStack(self: *Self, visible_count: u32, output_tags: u32, position: MasterPosition) void {
const master_count = std.math.min(self.master_count, visible_count);
const slave_count = if (master_count >= visible_count) 0 else visible_count - master_count;
const border_width = self.root.server.config.border_width;
const view_padding = self.root.server.config.view_padding;
const outer_padding = self.root.server.config.outer_padding;
const layout_width = @intCast(u32, self.usable_box.width) - outer_padding * 2;
const layout_height = @intCast(u32, self.usable_box.height) - outer_padding * 2;
// Depending on position of the master area,
// the *_stack_size is either width or height
var master_stack_size: u32 = undefined;
var slave_stack_size: u32 = undefined;
if (master_count > 0 and slave_count > 0) {
// If both master and slave views are present
if (position == MasterPosition.Right or position == MasterPosition.Left) {
master_stack_size = @floatToInt(u32, @round(@intToFloat(f64, layout_width) * self.master_factor));
slave_stack_size = layout_width - master_stack_size;
} else {
master_stack_size = @floatToInt(u32, @round(@intToFloat(f64, layout_height) * self.master_factor));
slave_stack_size = layout_height - master_stack_size;
}
} else if (master_count > 0) {
if (position == MasterPosition.Right or position == MasterPosition.Left) {
master_stack_size = layout_width;
} else {
master_stack_size = layout_height;
}
slave_stack_size = 0;
} else {
if (position == MasterPosition.Right or position == MasterPosition.Left) {
slave_stack_size = layout_width;
} else {
slave_stack_size = layout_width;
}
master_stack_size = 0;
}
var i: u32 = 0;
var it = ViewStack(View).pendingIterator(self.views.first, output_tags);
while (it.next()) |node| {
const view = &node.view;
if (view.floating) {
continue;
}
var new_box: Box = undefined;
// Add the remainder to the first master/slave to ensure every
// pixel of height is used
if (i < master_count) {
if (position == MasterPosition.Top) { // Top master
const master_width = @divTrunc(layout_width, master_count);
const master_width_rem = layout_width % master_count;
new_box = .{
.x = @intCast(i32, i * master_width + if (i > 0) master_width_rem else 0),
.y = 0,
.width = master_width + if (i == 0) master_width_rem else 0,
.height = master_stack_size,
};
} else if (position == MasterPosition.Right) { // Right master
const master_height = @divTrunc(layout_height, master_count);
const master_height_rem = layout_height % master_count;
new_box = .{
.x = @intCast(i32, slave_stack_size),
.y = @intCast(i32, i * master_height + if (i > 0) master_height_rem else 0),
.width = master_stack_size,
.height = master_height + if (i == 0) master_height_rem else 0,
};
} else if (position == MasterPosition.Bottom) { // Bottom master
const master_width = @divTrunc(layout_width, master_count);
const master_width_rem = layout_width % master_count;
new_box = .{
.x = @intCast(i32, i * master_width + if (i > 0) master_width_rem else 0),
.y = @intCast(i32, slave_stack_size),
.width = master_width + if (i == 0) master_width_rem else 0,
.height = master_stack_size,
};
} else { // Left master
const master_height = @divTrunc(layout_height, master_count);
const master_height_rem = layout_height % master_count;
new_box = .{
.x = 0,
.y = @intCast(i32, i * master_height + if (i > 0) master_height_rem else 0),
.width = master_stack_size,
.height = master_height + if (i == 0) master_height_rem else 0,
};
}
} else {
if (position == MasterPosition.Top) { // Top master
const slave_width = @divTrunc(layout_width, slave_count);
const slave_width_rem = layout_width % slave_count;
new_box = .{
.x = @intCast(i32, (i - master_count) * slave_width + if (i > master_count) slave_width_rem else 0),
.y = @intCast(i32, master_stack_size),
.width = slave_width + if (i == master_count) slave_width_rem else 0,
.height = slave_stack_size,
};
} else if (position == MasterPosition.Right) { // Right master
const slave_height = @divTrunc(layout_height, slave_count);
const slave_height_rem = layout_height % slave_count;
new_box = .{
.x = 0,
.y = @intCast(i32, (i - master_count) * slave_height + if (i > master_count) slave_height_rem else 0),
.width = slave_stack_size,
.height = slave_height + if (i == master_count) slave_height_rem else 0,
};
} else if (position == MasterPosition.Bottom) { // Bottom master
const slave_width = @divTrunc(layout_width, slave_count);
const slave_width_rem = layout_width % slave_count;
new_box = .{
.x = @intCast(i32, (i - master_count) * slave_width + if (i > master_count) slave_width_rem else 0),
.y = 0,
.width = slave_width + if (i == master_count) slave_width_rem else 0,
.height = slave_stack_size,
};
} else { // Left master
const slave_height = @divTrunc(layout_height, slave_count);
const slave_height_rem = layout_height % slave_count;
new_box = .{
.x = @intCast(i32, master_stack_size),
.y = @intCast(i32, (i - master_count) * slave_height + if (i > master_count) slave_height_rem else 0),
.width = slave_stack_size,
.height = slave_height + if (i == master_count) slave_height_rem else 0,
};
}
}
// Apply offsets from borders and padding
const xy_offset = @intCast(i32, border_width + outer_padding + view_padding);
new_box.x += self.usable_box.x + xy_offset;
new_box.y += self.usable_box.y + xy_offset;
// Reduce size to allow space for borders/padding
const delta_size = (border_width + view_padding) * 2;
new_box.width -= delta_size;
new_box.height -= delta_size;
// Set the view's pending box to the new dimensions
view.pending_box = new_box;
i += 1;
}
}
/// Wrapper for default layout with master area on the top
pub fn layoutTopMaster(self: *Self, visible_count: u32, output_tags: u32) void {
layoutMasterStack(self, visible_count, output_tags, MasterPosition.Top);
}
/// Wrapper for default layout with master area on the right
pub fn layoutRightMaster(self: *Self, visible_count: u32, output_tags: u32) void {
layoutMasterStack(self, visible_count, output_tags, MasterPosition.Right);
}
/// Wrapper for default layout with master area on the bottom
pub fn layoutBottomMaster(self: *Self, visible_count: u32, output_tags: u32) void {
layoutMasterStack(self, visible_count, output_tags, MasterPosition.Bottom);
}
/// Wrapper for default layout with master area on the left
pub fn layoutLeftMaster(self: *Self, visible_count: u32, output_tags: u32) void {
layoutMasterStack(self, visible_count, output_tags, MasterPosition.Left);
}
/// Arrange all views on the output for the current layout. Modifies only
/// pending state, the changes are not appplied until a transaction is started
/// and completed.
@ -174,85 +350,11 @@ pub fn arrangeViews(self: *Self) void {
break :blk count;
};
const master_count = std.math.min(self.master_count, visible_count);
const slave_count = if (master_count >= visible_count) 0 else visible_count - master_count;
const border_width = self.root.server.config.border_width;
const view_padding = self.root.server.config.view_padding;
const outer_padding = self.root.server.config.outer_padding;
const layout_width = @intCast(u32, self.usable_box.width) - outer_padding * 2;
const layout_height = @intCast(u32, self.usable_box.height) - outer_padding * 2;
var master_column_width: u32 = undefined;
var slave_column_width: u32 = undefined;
if (master_count > 0 and slave_count > 0) {
// If both master and slave views are present
master_column_width = @floatToInt(u32, @round(@intToFloat(f64, layout_width) * self.master_factor));
slave_column_width = layout_width - master_column_width;
} else if (master_count > 0) {
master_column_width = layout_width;
slave_column_width = 0;
} else {
slave_column_width = layout_width;
master_column_width = 0;
}
var i: u32 = 0;
var it = ViewStack(View).pendingIterator(self.views.first, output_tags);
while (it.next()) |node| {
const view = &node.view;
if (view.floating) {
continue;
}
var new_box: Box = undefined;
// Add the remainder to the first master/slave to ensure every
// pixel of height is used
if (i < master_count) {
const master_height = @divTrunc(layout_height, master_count);
const master_height_rem = layout_height % master_count;
new_box = .{
.x = 0,
.y = @intCast(i32, i * master_height +
if (i > 0) master_height_rem else 0),
.width = master_column_width,
.height = master_height + if (i == 0) master_height_rem else 0,
};
} else {
const slave_height = @divTrunc(layout_height, slave_count);
const slave_height_rem = layout_height % slave_count;
new_box = .{
.x = @intCast(i32, master_column_width),
.y = @intCast(i32, (i - master_count) * slave_height +
if (i > master_count) slave_height_rem else 0),
.width = slave_column_width,
.height = slave_height +
if (i == master_count) slave_height_rem else 0,
};
}
// Apply offsets from borders and padding
const xy_offset = @intCast(i32, border_width + outer_padding + view_padding);
new_box.x += self.usable_box.x + xy_offset;
new_box.y += self.usable_box.y + xy_offset;
// Reduce size to allow space for borders/padding
const delta_size = (border_width + view_padding) * 2;
new_box.width -= delta_size;
new_box.height -= delta_size;
// Set the view's pending box to the new dimensions
view.pending_box = new_box;
i += 1;
}
//layoutFull(self, visible_count, output_tags);
//layoutTopMaster(self, visible_count, output_tags);
//layoutRightMaster(self, visible_count, output_tags);
//layoutBottomMaster(self, visible_count, output_tags);
layoutLeftMaster(self, visible_count, output_tags);
}
/// Arrange all layer surfaces of this output and addjust the usable aread