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use crate::SettingsUI;
use crate::search::SearchTag;
use crate::section::collapsing_section_with_state;
use arboard::Clipboard;
use egui::Color32;
use std::collections::HashSet;
use super::cursor_shader_metadata::show_cursor_shader_metadata_and_settings;
pub fn show_cursor_shader(
ui: &mut egui::Ui,
settings: &mut SettingsUI,
changes_this_frame: &mut bool,
collapsed: &mut HashSet<String>,
) {
collapsing_section_with_state(
ui,
"Cursor Shader",
"cursor_shader",
true,
collapsed,
|ui, collapsed| {
ui.label("Apply shader effects to cursor (trails, glow, etc.)");
ui.add_space(4.0);
// Cursor shader selection dropdown
ui.horizontal(|ui| {
ui.label("Shader:");
let selected_text = if settings.temp_cursor_shader.is_empty() {
"(none)".to_string()
} else {
settings.temp_cursor_shader.clone()
};
let mut shader_changed = false;
egui::ComboBox::from_id_salt("cursor_shader_select")
.selected_text(&selected_text)
.width(200.0)
.show_ui(ui, |ui| {
// Option to select none
if ui
.selectable_label(settings.temp_cursor_shader.is_empty(), "(none)")
.clicked()
{
settings.temp_cursor_shader.clear();
settings.config.shader.cursor_shader = None;
shader_changed = true;
}
// List available cursor shaders (only cursor_* shaders)
for shader in &settings.cursor_shaders() {
let is_selected = settings.temp_cursor_shader == *shader;
if ui.selectable_label(is_selected, shader).clicked() {
settings.temp_cursor_shader = shader.clone();
settings.config.shader.cursor_shader = Some(shader.clone());
shader_changed = true;
}
}
})
.response
.search_tag(&["cursor_shader"]);
if shader_changed {
settings.has_changes = true;
*changes_this_frame = true;
}
// Refresh button
if ui
.button("↻")
.on_hover_text("Refresh shader list")
.clicked()
{
settings.refresh_shaders();
}
});
// Browse button for cursor shader
ui.horizontal(|ui| {
if ui
.button("Browse...")
.on_hover_text("Browse for external shader file")
.clicked()
&& let Some(path) = settings.pick_file_path("Select cursor shader file")
{
settings.temp_cursor_shader = path.clone();
settings.config.shader.cursor_shader = Some(path);
settings.has_changes = true;
*changes_this_frame = true;
}
});
// Show cursor shader compilation error if any
if let Some(error) = &settings.cursor_shader_editor_error {
let shader_path =
par_term_config::Config::shader_path(&settings.temp_cursor_shader);
let full_error = format!("File: {}\n\n{}", shader_path.display(), error);
let error_display = error.clone();
ui.add_space(4.0);
egui::Frame::default()
.fill(Color32::from_rgb(80, 20, 20))
.inner_margin(8.0)
.outer_margin(0.0)
.corner_radius(4.0)
.show(ui, |ui| {
ui.horizontal(|ui| {
ui.colored_label(
Color32::from_rgb(255, 100, 100),
"⚠ Cursor Shader Error",
);
ui.with_layout(
egui::Layout::right_to_left(egui::Align::Center),
|ui| {
if ui.small_button("Copy").clicked()
&& let Ok(mut clipboard) = Clipboard::new()
{
let _ = clipboard.set_text(full_error.clone());
}
},
);
});
// Show shader path on its own line
ui.label(format!("File: {}", shader_path.display()));
ui.separator();
// Show error details with word wrap
ui.add(
egui::TextEdit::multiline(&mut error_display.as_str())
.font(egui::TextStyle::Monospace)
.desired_width(f32::INFINITY)
.desired_rows(3)
.interactive(false),
);
});
ui.add_space(4.0);
}
// Show cursor shader metadata and per-shader settings if a shader is selected
if !settings.temp_cursor_shader.is_empty() {
show_cursor_shader_metadata_and_settings(
ui,
settings,
changes_this_frame,
collapsed,
);
}
crate::dependent::dependent(
ui,
!settings.temp_cursor_shader.is_empty(),
"Shader: a cursor shader selected",
|ui| {
if ui
.checkbox(
&mut settings.config.shader.cursor_shader_enabled,
"Enable cursor shader",
)
.search_tag(&["cursor_shader_enabled"])
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
if ui
.checkbox(
&mut settings.config.shader.cursor_shader_animation,
"Enable cursor shader animation",
)
.search_tag(&["cursor_shader_animation"])
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
ui.horizontal(|ui| {
ui.label("Animation speed:");
if ui
.add(
egui::Slider::new(
&mut settings.config.shader.cursor_shader_animation_speed,
0.0..=5.0,
)
.suffix("×"),
)
.search_tag(&["cursor_shader_animation_speed"])
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
crate::reset::reset_button(ui, settings, changes_this_frame, |c| {
&mut c.shader.cursor_shader_animation_speed
});
});
if ui
.checkbox(
&mut settings.config.shader.cursor_shader_hides_cursor,
"Hide default cursor (let shader handle it)",
).search_tag(&["cursor_shader_hides_cursor"])
.on_hover_text("When enabled, the normal cursor is not drawn, allowing the cursor shader to fully replace cursor rendering")
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
if ui
.checkbox(
&mut settings.config.shader.cursor_shader_disable_in_alt_screen,
"Disable cursor shader in alt screen (vim/less/htop)",
).search_tag(&["cursor_shader_disable_in_alt_screen"])
.on_hover_text("When enabled, cursor shader effects pause while an application is using the alt screen")
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
ui.horizontal(|ui| {
ui.label("Cursor color:");
let mut color = settings.config.shader.cursor_shader_color;
if ui
.color_edit_button_srgb(&mut color)
.search_tag(&["cursor_shader_color"])
.on_hover_text(
"Color passed to cursor shader via iCursorShaderColor uniform",
)
.changed()
{
settings.config.shader.cursor_shader_color = color;
settings.has_changes = true;
*changes_this_frame = true;
}
});
show_trail_and_glow(ui, settings, changes_this_frame);
ui.add_space(8.0);
},
);
// Edit Shader button - only enabled when a shader path is set
let has_shader_path = !settings.temp_cursor_shader.is_empty();
ui.horizontal(|ui| {
let edit_button =
ui.add_enabled(has_shader_path, egui::Button::new("Edit Cursor Shader..."));
if edit_button.clicked() {
// Load shader source from file
let shader_path =
par_term_config::Config::shader_path(&settings.temp_cursor_shader);
match std::fs::read_to_string(&shader_path) {
Ok(source) => {
settings.cursor_shader_editor_source = source.clone();
settings.cursor_shader_editor_original = source;
settings.cursor_shader_editor_error = None;
settings.cursor_shader_editor_visible = true;
}
Err(e) => {
settings.cursor_shader_editor_error = Some(format!(
"Failed to read cursor shader file '{}': {}",
shader_path.display(),
e
));
}
}
}
if !has_shader_path {
ui.label("(set shader path first)");
}
});
},
);
}
/// Trail and glow values passed to every cursor shader as uniforms
/// (`iCursorTrailDuration`, `iCursorGlowRadius`, `iCursorGlowIntensity`).
/// A shader's own metadata defaults and per-shader overrides take
/// precedence over these.
fn show_trail_and_glow(
ui: &mut egui::Ui,
settings: &mut SettingsUI,
changes_this_frame: &mut bool,
) {
ui.horizontal(|ui| {
ui.label("Trail duration:");
if ui
.add(
egui::Slider::new(
&mut settings.config.shader.cursor_shader_trail_duration,
0.0..=3.0,
)
.suffix(" s"),
)
.search_tag(&["cursor_shader_trail_duration"])
.on_hover_text("How long the cursor trail lasts (iCursorTrailDuration uniform)")
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
crate::reset::reset_button(ui, settings, changes_this_frame, |c| {
&mut c.shader.cursor_shader_trail_duration
});
});
ui.horizontal(|ui| {
ui.label("Glow radius:");
if ui
.add(
egui::Slider::new(
&mut settings.config.shader.cursor_shader_glow_radius,
0.0..=300.0,
)
.suffix(" px"),
)
.search_tag(&["cursor_shader_glow_radius"])
.on_hover_text("Radius of the cursor glow (iCursorGlowRadius uniform)")
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
crate::reset::reset_button(ui, settings, changes_this_frame, |c| {
&mut c.shader.cursor_shader_glow_radius
});
});
ui.horizontal(|ui| {
ui.label("Glow intensity:");
if ui
.add(crate::units::percent(egui::Slider::new(
&mut settings.config.shader.cursor_shader_glow_intensity,
0.0..=1.0,
)))
.search_tag(&["cursor_shader_glow_intensity"])
.on_hover_text("Strength of the cursor glow (iCursorGlowIntensity uniform)")
.changed()
{
settings.has_changes = true;
*changes_this_frame = true;
}
crate::reset::reset_button(ui, settings, changes_this_frame, |c| {
&mut c.shader.cursor_shader_glow_intensity
});
});
}