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use super::{GapConfig, Layout, WindowGeometry};
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use x11rb::protocol::xproto::Window;
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pub struct TilingLayout;
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struct GapValues {
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outer_horizontal: u32,
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outer_vertical: u32,
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inner_horizontal: u32,
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inner_vertical: u32,
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}
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struct FactValues {
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master_facts: f32,
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stack_facts: f32,
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master_remainder: i32,
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stack_remainder: i32,
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}
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impl TilingLayout {
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fn getgaps(gaps: &GapConfig, window_count: usize, smartgaps_enabled: bool) -> GapValues {
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let outer_enabled = if smartgaps_enabled && window_count == 1 {
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0
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} else {
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1
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};
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let inner_enabled = 1;
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GapValues {
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outer_horizontal: gaps.outer_horizontal * outer_enabled,
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outer_vertical: gaps.outer_vertical * outer_enabled,
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inner_horizontal: gaps.inner_horizontal * inner_enabled,
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inner_vertical: gaps.inner_vertical * inner_enabled,
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}
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}
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fn getfacts(
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window_count: usize,
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num_master: i32,
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master_size: i32,
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stack_size: i32,
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) -> FactValues {
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let num_master = num_master.max(0) as usize;
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let master_facts = window_count.min(num_master) as f32;
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let stack_facts = if window_count > num_master {
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(window_count - num_master) as f32
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} else {
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0.0
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};
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let mut master_total = 0;
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let mut stack_total = 0;
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for i in 0..window_count {
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if i < num_master {
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master_total += (master_size as f32 / master_facts) as i32;
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} else {
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if stack_facts > 0.0 {
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stack_total += (stack_size as f32 / stack_facts) as i32;
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}
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}
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}
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FactValues {
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master_facts,
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stack_facts,
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master_remainder: master_size - master_total,
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stack_remainder: stack_size - stack_total,
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}
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}
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}
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impl Layout for TilingLayout {
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fn name(&self) -> &'static str {
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super::LayoutType::Tiling.as_str()
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}
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fn symbol(&self) -> &'static str {
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"[]="
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}
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fn arrange(
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&self,
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windows: &[Window],
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screen_width: u32,
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screen_height: u32,
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gaps: &GapConfig,
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master_factor: f32,
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num_master: i32,
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smartgaps_enabled: bool,
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) -> Vec<WindowGeometry> {
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let window_count = windows.len();
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if window_count == 0 {
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return Vec::new();
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}
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let gap_values = Self::getgaps(gaps, window_count, smartgaps_enabled);
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let outer_gap_horizontal = gap_values.outer_horizontal;
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let outer_gap_vertical = gap_values.outer_vertical;
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let inner_gap_horizontal = gap_values.inner_horizontal;
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let inner_gap_vertical = gap_values.inner_vertical;
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let mut stack_x = outer_gap_vertical as i32;
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let mut stack_y = outer_gap_horizontal as i32;
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let master_x = outer_gap_vertical as i32;
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let mut master_y = outer_gap_horizontal as i32;
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let num_master_usize = num_master.max(0) as usize;
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let master_count = window_count.min(num_master_usize);
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let stack_count = if window_count > num_master_usize {
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window_count - num_master_usize
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} else {
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0
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};
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let master_height = (screen_height as i32)
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- (2 * outer_gap_horizontal) as i32
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- (inner_gap_horizontal as i32 * (master_count.saturating_sub(1)) as i32);
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let stack_height = (screen_height as i32)
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- (2 * outer_gap_horizontal) as i32
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- (inner_gap_horizontal as i32 * stack_count.saturating_sub(1) as i32);
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let mut stack_width = (screen_width as i32) - (2 * outer_gap_vertical) as i32;
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let mut master_width = stack_width;
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if num_master > 0 && window_count > num_master_usize {
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stack_width = ((master_width as f32 - inner_gap_vertical as f32) * (1.0 - master_factor)) as i32;
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master_width = master_width - inner_gap_vertical as i32 - stack_width;
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stack_x = master_x + master_width + inner_gap_vertical as i32;
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}
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let facts = Self::getfacts(window_count, num_master, master_height, stack_height);
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let mut geometries = Vec::new();
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for (i, _window) in windows.iter().enumerate() {
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if i < num_master_usize {
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let window_height = (master_height as f32 / facts.master_facts) as i32
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+ if (i as i32) < facts.master_remainder {
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1
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} else {
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0
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};
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geometries.push(WindowGeometry {
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x_coordinate: master_x,
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y_coordinate: master_y,
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width: master_width as u32,
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height: window_height as u32,
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});
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master_y += window_height + inner_gap_horizontal as i32;
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} else {
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let window_height = if facts.stack_facts > 0.0 {
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(stack_height as f32 / facts.stack_facts) as i32
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+ if ((i - num_master_usize) as i32) < facts.stack_remainder {
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1
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} else {
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0
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}
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} else {
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stack_height
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};
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geometries.push(WindowGeometry {
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x_coordinate: stack_x,
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y_coordinate: stack_y,
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width: stack_width as u32,
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height: window_height as u32,
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});
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stack_y += window_height + inner_gap_horizontal as i32;
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}
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}
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geometries
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}
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}
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