bevy_map_editor 0.1.5

Full-featured map editor for Bevy games with autotile support
Documentation 
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//! Toolbar UI for tool selection

use crate::EditorState;
use bevy_egui::egui;
use serde::{Deserialize, Serialize};

/// Available editor tools
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)]
pub enum EditorTool {
    #[default]
    Select,
    Paint,
    Erase,
    Fill,
    Terrain,
    Entity,
}

impl EditorTool {
    /// Returns true if this tool supports Point/Rectangle modes
    pub fn supports_modes(&self) -> bool {
        matches!(
            self,
            EditorTool::Paint | EditorTool::Erase | EditorTool::Terrain
        )
    }
}

/// Tool mode for painting operations
#[derive(Debug, Clone, Copy, PartialEq, Eq, Default, Serialize, Deserialize)]
pub enum ToolMode {
    /// Single tile/point painting (click or drag)
    #[default]
    Point,
    /// Rectangle fill (drag to define area)
    Rectangle,
}

impl ToolMode {
    pub fn label(&self) -> &'static str {
        match self {
            ToolMode::Point => "Point",
            ToolMode::Rectangle => "Rect",
        }
    }
}

/// Render the toolbar
pub fn render_toolbar(ctx: &egui::Context, editor_state: &mut EditorState) {
    egui::TopBottomPanel::top("toolbar").show(ctx, |ui| {
        ui.horizontal(|ui| {
            // Tool selection - grouped by category
            ui.label("Tools:");

            // Selection tools
            if ui
                .selectable_label(editor_state.current_tool == EditorTool::Select, "Select")
                .clicked()
            {
                editor_state.current_tool = EditorTool::Select;
            }

            ui.separator();

            // Painting tools
            let paint_tools = [
                (EditorTool::Paint, "Paint"),
                (EditorTool::Erase, "Erase"),
                (EditorTool::Fill, "Fill"),
            ];

            for (tool, name) in paint_tools {
                if ui
                    .selectable_label(editor_state.current_tool == tool, name)
                    .clicked()
                {
                    editor_state.current_tool = tool;
                }
            }

            ui.separator();

            // Terrain tool (for autotiling)
            if ui
                .selectable_label(editor_state.current_tool == EditorTool::Terrain, "Terrain")
                .clicked()
            {
                editor_state.current_tool = EditorTool::Terrain;
            }

            ui.separator();

            // Entity tool
            if ui
                .selectable_label(editor_state.current_tool == EditorTool::Entity, "Entity")
                .clicked()
            {
                editor_state.current_tool = EditorTool::Entity;
            }

            ui.separator();

            // Tool mode dropdown (for applicable tools)
            if editor_state.current_tool.supports_modes() {
                ui.label("Mode:");
                egui::ComboBox::from_id_salt("tool_mode")
                    .selected_text(editor_state.tool_mode.label())
                    .width(80.0)
                    .show_ui(ui, |ui| {
                        ui.selectable_value(
                            &mut editor_state.tool_mode,
                            ToolMode::Point,
                            ToolMode::Point.label(),
                        );
                        ui.selectable_value(
                            &mut editor_state.tool_mode,
                            ToolMode::Rectangle,
                            ToolMode::Rectangle.label(),
                        );
                    });

                ui.separator();
            }

            // Layer selection
            ui.label("Layer:");
            if let Some(layer_idx) = editor_state.selected_layer {
                ui.label(format!("{}", layer_idx));
            } else {
                ui.label("(none)");
            }

            ui.separator();

            // Grid toggle
            ui.checkbox(&mut editor_state.show_grid, "Grid");

            ui.separator();

            // Zoom controls
            if ui.button("-").clicked() {
                editor_state.zoom = (editor_state.zoom / 1.25).max(0.25);
            }
            ui.label(format!("{}%", (editor_state.zoom * 100.0) as i32));
            if ui.button("+").clicked() {
                editor_state.zoom = (editor_state.zoom * 1.25).min(4.0);
            }

            // Tileset Editor button
            ui.separator();
            if ui.button("Tileset Editor").clicked() {
                editor_state.show_tileset_editor = true;
            }
        });
    });
}