Modify default layout to allow master area on all four sides
Also move it into a separate function
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cee41e925d
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1 changed files with 181 additions and 79 deletions
260
src/Output.zig
260
src/Output.zig
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@ -147,6 +147,182 @@ pub fn getRenderer(self: Self) *c.wlr_renderer {
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return c.river_wlr_backend_get_renderer(self.wlr_output.backend);
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}
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const MasterPosition = enum {
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Top,
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Right,
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Bottom,
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Left,
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};
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/// Default layout of master-stack and slave-stack.
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pub fn layoutMasterStack(self: *Self, visible_count: u32, output_tags: u32, position: MasterPosition) void {
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const master_count = std.math.min(self.master_count, visible_count);
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const slave_count = if (master_count >= visible_count) 0 else visible_count - master_count;
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const border_width = self.root.server.config.border_width;
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const view_padding = self.root.server.config.view_padding;
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const outer_padding = self.root.server.config.outer_padding;
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const layout_width = @intCast(u32, self.usable_box.width) - outer_padding * 2;
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const layout_height = @intCast(u32, self.usable_box.height) - outer_padding * 2;
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// Depending on position of the master area,
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// the *_stack_size is either width or height
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var master_stack_size: u32 = undefined;
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var slave_stack_size: u32 = undefined;
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if (master_count > 0 and slave_count > 0) {
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// If both master and slave views are present
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if (position == MasterPosition.Right or position == MasterPosition.Left) {
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master_stack_size = @floatToInt(u32, @round(@intToFloat(f64, layout_width) * self.master_factor));
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slave_stack_size = layout_width - master_stack_size;
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} else {
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master_stack_size = @floatToInt(u32, @round(@intToFloat(f64, layout_height) * self.master_factor));
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slave_stack_size = layout_height - master_stack_size;
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}
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} else if (master_count > 0) {
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if (position == MasterPosition.Right or position == MasterPosition.Left) {
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master_stack_size = layout_width;
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} else {
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master_stack_size = layout_height;
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}
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slave_stack_size = 0;
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} else {
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if (position == MasterPosition.Right or position == MasterPosition.Left) {
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slave_stack_size = layout_width;
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} else {
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slave_stack_size = layout_width;
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}
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master_stack_size = 0;
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}
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var i: u32 = 0;
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var it = ViewStack(View).pendingIterator(self.views.first, output_tags);
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while (it.next()) |node| {
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const view = &node.view;
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if (view.floating) {
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continue;
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}
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var new_box: Box = undefined;
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// Add the remainder to the first master/slave to ensure every
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// pixel of height is used
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if (i < master_count) {
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if (position == MasterPosition.Top) { // Top master
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const master_width = @divTrunc(layout_width, master_count);
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const master_width_rem = layout_width % master_count;
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new_box = .{
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.x = @intCast(i32, i * master_width + if (i > 0) master_width_rem else 0),
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.y = 0,
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.width = master_width + if (i == 0) master_width_rem else 0,
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.height = master_stack_size,
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};
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} else if (position == MasterPosition.Right) { // Right master
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const master_height = @divTrunc(layout_height, master_count);
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const master_height_rem = layout_height % master_count;
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new_box = .{
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.x = @intCast(i32, slave_stack_size),
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.y = @intCast(i32, i * master_height + if (i > 0) master_height_rem else 0),
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.width = master_stack_size,
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.height = master_height + if (i == 0) master_height_rem else 0,
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};
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} else if (position == MasterPosition.Bottom) { // Bottom master
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const master_width = @divTrunc(layout_width, master_count);
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const master_width_rem = layout_width % master_count;
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new_box = .{
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.x = @intCast(i32, i * master_width + if (i > 0) master_width_rem else 0),
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.y = @intCast(i32, slave_stack_size),
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.width = master_width + if (i == 0) master_width_rem else 0,
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.height = master_stack_size,
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};
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} else { // Left master
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const master_height = @divTrunc(layout_height, master_count);
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const master_height_rem = layout_height % master_count;
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new_box = .{
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.x = 0,
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.y = @intCast(i32, i * master_height + if (i > 0) master_height_rem else 0),
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.width = master_stack_size,
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.height = master_height + if (i == 0) master_height_rem else 0,
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};
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}
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} else {
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if (position == MasterPosition.Top) { // Top master
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const slave_width = @divTrunc(layout_width, slave_count);
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const slave_width_rem = layout_width % slave_count;
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new_box = .{
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.x = @intCast(i32, (i - master_count) * slave_width + if (i > master_count) slave_width_rem else 0),
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.y = @intCast(i32, master_stack_size),
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.width = slave_width + if (i == master_count) slave_width_rem else 0,
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.height = slave_stack_size,
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};
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} else if (position == MasterPosition.Right) { // Right master
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const slave_height = @divTrunc(layout_height, slave_count);
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const slave_height_rem = layout_height % slave_count;
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new_box = .{
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.x = 0,
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.y = @intCast(i32, (i - master_count) * slave_height + if (i > master_count) slave_height_rem else 0),
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.width = slave_stack_size,
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.height = slave_height + if (i == master_count) slave_height_rem else 0,
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};
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} else if (position == MasterPosition.Bottom) { // Bottom master
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const slave_width = @divTrunc(layout_width, slave_count);
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const slave_width_rem = layout_width % slave_count;
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new_box = .{
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.x = @intCast(i32, (i - master_count) * slave_width + if (i > master_count) slave_width_rem else 0),
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.y = 0,
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.width = slave_width + if (i == master_count) slave_width_rem else 0,
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.height = slave_stack_size,
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};
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} else { // Left master
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const slave_height = @divTrunc(layout_height, slave_count);
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const slave_height_rem = layout_height % slave_count;
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new_box = .{
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.x = @intCast(i32, master_stack_size),
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.y = @intCast(i32, (i - master_count) * slave_height + if (i > master_count) slave_height_rem else 0),
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.width = slave_stack_size,
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.height = slave_height + if (i == master_count) slave_height_rem else 0,
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};
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}
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}
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// Apply offsets from borders and padding
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const xy_offset = @intCast(i32, border_width + outer_padding + view_padding);
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new_box.x += self.usable_box.x + xy_offset;
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new_box.y += self.usable_box.y + xy_offset;
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// Reduce size to allow space for borders/padding
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const delta_size = (border_width + view_padding) * 2;
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new_box.width -= delta_size;
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new_box.height -= delta_size;
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// Set the view's pending box to the new dimensions
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view.pending_box = new_box;
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i += 1;
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}
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}
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/// Wrapper for default layout with master area on the top
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pub fn layoutTopMaster(self: *Self, visible_count: u32, output_tags: u32) void {
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layoutMasterStack(self, visible_count, output_tags, MasterPosition.Top);
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}
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/// Wrapper for default layout with master area on the right
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pub fn layoutRightMaster(self: *Self, visible_count: u32, output_tags: u32) void {
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layoutMasterStack(self, visible_count, output_tags, MasterPosition.Right);
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}
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/// Wrapper for default layout with master area on the bottom
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pub fn layoutBottomMaster(self: *Self, visible_count: u32, output_tags: u32) void {
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layoutMasterStack(self, visible_count, output_tags, MasterPosition.Bottom);
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}
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/// Wrapper for default layout with master area on the left
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pub fn layoutLeftMaster(self: *Self, visible_count: u32, output_tags: u32) void {
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layoutMasterStack(self, visible_count, output_tags, MasterPosition.Left);
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}
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/// Arrange all views on the output for the current layout. Modifies only
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/// pending state, the changes are not appplied until a transaction is started
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/// and completed.
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@ -174,85 +350,11 @@ pub fn arrangeViews(self: *Self) void {
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break :blk count;
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};
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const master_count = std.math.min(self.master_count, visible_count);
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const slave_count = if (master_count >= visible_count) 0 else visible_count - master_count;
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const border_width = self.root.server.config.border_width;
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const view_padding = self.root.server.config.view_padding;
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const outer_padding = self.root.server.config.outer_padding;
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const layout_width = @intCast(u32, self.usable_box.width) - outer_padding * 2;
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const layout_height = @intCast(u32, self.usable_box.height) - outer_padding * 2;
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var master_column_width: u32 = undefined;
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var slave_column_width: u32 = undefined;
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if (master_count > 0 and slave_count > 0) {
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// If both master and slave views are present
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master_column_width = @floatToInt(u32, @round(@intToFloat(f64, layout_width) * self.master_factor));
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slave_column_width = layout_width - master_column_width;
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} else if (master_count > 0) {
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master_column_width = layout_width;
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slave_column_width = 0;
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} else {
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slave_column_width = layout_width;
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master_column_width = 0;
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}
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var i: u32 = 0;
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var it = ViewStack(View).pendingIterator(self.views.first, output_tags);
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while (it.next()) |node| {
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const view = &node.view;
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if (view.floating) {
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continue;
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}
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var new_box: Box = undefined;
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// Add the remainder to the first master/slave to ensure every
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// pixel of height is used
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if (i < master_count) {
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const master_height = @divTrunc(layout_height, master_count);
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const master_height_rem = layout_height % master_count;
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new_box = .{
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.x = 0,
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.y = @intCast(i32, i * master_height +
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if (i > 0) master_height_rem else 0),
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.width = master_column_width,
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.height = master_height + if (i == 0) master_height_rem else 0,
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};
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} else {
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const slave_height = @divTrunc(layout_height, slave_count);
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const slave_height_rem = layout_height % slave_count;
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new_box = .{
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.x = @intCast(i32, master_column_width),
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.y = @intCast(i32, (i - master_count) * slave_height +
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if (i > master_count) slave_height_rem else 0),
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.width = slave_column_width,
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.height = slave_height +
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if (i == master_count) slave_height_rem else 0,
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};
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}
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// Apply offsets from borders and padding
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const xy_offset = @intCast(i32, border_width + outer_padding + view_padding);
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new_box.x += self.usable_box.x + xy_offset;
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new_box.y += self.usable_box.y + xy_offset;
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// Reduce size to allow space for borders/padding
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const delta_size = (border_width + view_padding) * 2;
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new_box.width -= delta_size;
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new_box.height -= delta_size;
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// Set the view's pending box to the new dimensions
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view.pending_box = new_box;
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i += 1;
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}
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//layoutFull(self, visible_count, output_tags);
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//layoutTopMaster(self, visible_count, output_tags);
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//layoutRightMaster(self, visible_count, output_tags);
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//layoutBottomMaster(self, visible_count, output_tags);
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layoutLeftMaster(self, visible_count, output_tags);
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}
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/// Arrange all layer surfaces of this output and addjust the usable aread
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