CnC_Remastered_Collection

WallsTool.cs (13179B)

---

 //
 // Copyright 2020 Electronic Arts Inc.
 //
 // The Command & Conquer Map Editor and corresponding source code is free 
 // software: you can redistribute it and/or modify it under the terms of 
 // the GNU General Public License as published by the Free Software Foundation, 
 // either version 3 of the License, or (at your option) any later version.
 
 // The Command & Conquer Map Editor and corresponding source code is distributed 
 // in the hope that it will be useful, but with permitted additional restrictions 
 // under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT 
 // distributed with this program. You should have received a copy of the 
 // GNU General Public License along with permitted additional restrictions 
 // with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
 using MobiusEditor.Controls;
 using MobiusEditor.Event;
 using MobiusEditor.Interface;
 using MobiusEditor.Model;
 using MobiusEditor.Utility;
 using MobiusEditor.Widgets;
 using System;
 using System.Collections.Generic;
 using System.Drawing;
 using System.Linq;
 using System.Windows.Forms;
 
 namespace MobiusEditor.Tools
 {
     public class WallsTool : ViewTool
     {
         private readonly TypeComboBox wallTypeComboBox;
         private readonly MapPanel wallTypeMapPanel;
 
         private readonly Dictionary<int, Overlay> undoOverlays = new Dictionary<int, Overlay>();
         private readonly Dictionary<int, Overlay> redoOverlays = new Dictionary<int, Overlay>();
 
         private Map previewMap;
         protected override Map RenderMap => previewMap;
 
         private bool placementMode;
 
         private OverlayType selectedWallType;
         private OverlayType SelectedWallType
         {
             get => selectedWallType;
             set
             {
                 if (selectedWallType != value)
                 {
                     if (placementMode && (selectedWallType != null))
                     {
                         mapPanel.Invalidate(map, navigationWidget.MouseCell);
                     }
 
                     selectedWallType = value;
                     wallTypeComboBox.SelectedValue = selectedWallType;
 
                     RefreshMapPanel();
                 }
             }
         }
 
         public WallsTool(MapPanel mapPanel, MapLayerFlag layers, ToolStripStatusLabel statusLbl, TypeComboBox wallTypeComboBox, MapPanel wallTypeMapPanel, IGamePlugin plugin, UndoRedoList<UndoRedoEventArgs> url)
             : base(mapPanel, layers, statusLbl, plugin, url)
         {
             previewMap = map;
 
             this.mapPanel.MouseDown += MapPanel_MouseDown;
             this.mapPanel.MouseUp += MapPanel_MouseUp;
             this.mapPanel.MouseMove += MapPanel_MouseMove;
             (this.mapPanel as Control).KeyDown += WallTool_KeyDown;
             (this.mapPanel as Control).KeyUp += WallTool_KeyUp;
 
             this.wallTypeComboBox = wallTypeComboBox;
             this.wallTypeComboBox.SelectedIndexChanged += WallTypeComboBox_SelectedIndexChanged;
 
             this.wallTypeMapPanel = wallTypeMapPanel;
             this.wallTypeMapPanel.BackColor = Color.White;
             this.wallTypeMapPanel.MaxZoom = 1;
 
             navigationWidget.MouseCellChanged += MouseoverWidget_MouseCellChanged;
 
             SelectedWallType = this.wallTypeComboBox.Types.First() as OverlayType;
 
             UpdateStatus();
         }
 
         private void WallTypeComboBox_SelectedIndexChanged(object sender, EventArgs e)
         {
             SelectedWallType = wallTypeComboBox.SelectedValue as OverlayType;
         }
 
         private void WallTool_KeyDown(object sender, KeyEventArgs e)
         {
             if (e.KeyCode == Keys.ShiftKey)
             {
                 EnterPlacementMode();
             }
         }
 
         private void WallTool_KeyUp(object sender, KeyEventArgs e)
         {
             if (e.KeyCode == Keys.ShiftKey)
             {
                 ExitPlacementMode();
             }
         }
 
         private void MapPanel_MouseDown(object sender, MouseEventArgs e)
         {
             if (placementMode)
             {
                 if (e.Button == MouseButtons.Left)
                 {
                     AddWall(navigationWidget.MouseCell);
                 }
                 else if (e.Button == MouseButtons.Right)
                 {
                     RemoveWall(navigationWidget.MouseCell);
                 }
             }
             else if ((e.Button == MouseButtons.Left) || (e.Button == MouseButtons.Right))
             {
                 PickWall(navigationWidget.MouseCell);
             }
         }
 
         private void MapPanel_MouseUp(object sender, MouseEventArgs e)
         {
             if ((undoOverlays.Count > 0) || (redoOverlays.Count > 0))
             {
                 CommitChange();
             }
         }
 
         private void MapPanel_MouseMove(object sender, MouseEventArgs e)
         {
             if (!placementMode && (Control.ModifierKeys == Keys.Shift))
             {
                 EnterPlacementMode();
             }
             else if (placementMode && (Control.ModifierKeys == Keys.None))
             {
                 ExitPlacementMode();
             }
         }
 
         private void MouseoverWidget_MouseCellChanged(object sender, MouseCellChangedEventArgs e)
         {
             if (placementMode)
             {
                 if (Control.MouseButtons == MouseButtons.Left)
                 {
                     AddWall(e.NewCell);
                 }
                 else if (Control.MouseButtons == MouseButtons.Right)
                 {
                     RemoveWall(e.NewCell);
                 }
 
                 if (SelectedWallType != null)
                 {
                     mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(e.OldCell, new Size(1, 1)), 1, 1));
                     mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(e.NewCell, new Size(1, 1)), 1, 1));
                 }
             }
         }
 
         private void AddWall(Point location)
         {
             if (map.Metrics.GetCell(location, out int cell))
             {
                 if (SelectedWallType != null)
                 {
                     var overlay = new Overlay { Type = SelectedWallType, Icon = 0 };
                     if (map.Technos.CanAdd(cell, overlay) && map.Buildings.CanAdd(cell, overlay))
                     {
                         if (!undoOverlays.ContainsKey(cell))
                         {
                             undoOverlays[cell] = map.Overlay[cell];
                         }
 
                         map.Overlay[cell] = overlay;
                         redoOverlays[cell] = overlay;
 
                         mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(location, new Size(1, 1)), 1, 1));
 
                         plugin.Dirty = true;
                     }
                 }
             }
         }
 
         private void RemoveWall(Point location)
         {
             if (map.Metrics.GetCell(location, out int cell))
             {
                 var overlay = map.Overlay[cell];
                 if (overlay?.Type.IsWall ?? false)
                 {
                     if (!undoOverlays.ContainsKey(cell))
                     {
                         undoOverlays[cell] = map.Overlay[cell];
                     }
 
                     map.Overlay[cell] = null;
                     redoOverlays[cell] = null;
 
                     mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(location, new Size(1, 1)), 1, 1));
 
                     plugin.Dirty = true;
                 }
             }
         }
 
         private void CommitChange()
         {
             var undoOverlays2 = new Dictionary<int, Overlay>(undoOverlays);
             void undoAction(UndoRedoEventArgs e)
             {
                 foreach (var kv in undoOverlays2)
                 {
                     e.Map.Overlay[kv.Key] = kv.Value;
                 }
                 e.MapPanel.Invalidate(e.Map, undoOverlays2.Keys.Select(k =>
                 {
                     e.Map.Metrics.GetLocation(k, out Point location);
                     return Rectangle.Inflate(new Rectangle(location, new Size(1, 1)), 1, 1);
                 }));
             }
 
             var redoOverlays2 = new Dictionary<int, Overlay>(redoOverlays);
             void redoAction(UndoRedoEventArgs e)
             {
                 foreach (var kv in redoOverlays2)
                 {
                     e.Map.Overlay[kv.Key] = kv.Value;
                 }
                 e.MapPanel.Invalidate(e.Map, redoOverlays2.Keys.Select(k =>
                 {
                     e.Map.Metrics.GetLocation(k, out Point location);
                     return Rectangle.Inflate(new Rectangle(location, new Size(1, 1)), 1, 1);
                 }));
             }
 
             undoOverlays.Clear();
             redoOverlays.Clear();
 
             url.Track(undoAction, redoAction);
         }
 
         private void EnterPlacementMode()
         {
             if (placementMode)
             {
                 return;
             }
 
             placementMode = true;
 
             navigationWidget.MouseoverSize = Size.Empty;
 
             if (SelectedWallType != null)
             {
                 mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
             }
 
             UpdateStatus();
         }
 
         private void ExitPlacementMode()
         {
             if (!placementMode)
             {
                 return;
             }
 
             placementMode = false;
 
             navigationWidget.MouseoverSize = new Size(1, 1);
 
             if (SelectedWallType != null)
             {
                 mapPanel.Invalidate(map, Rectangle.Inflate(new Rectangle(navigationWidget.MouseCell, new Size(1, 1)), 1, 1));
             }
 
             UpdateStatus();
         }
 
         private void PickWall(Point location)
         {
             if (map.Metrics.GetCell(location, out int cell))
             {
                 var overlay = map.Overlay[cell];
                 if ((overlay != null) && overlay.Type.IsWall)
                 {
                     SelectedWallType = overlay.Type;
                 }
             }
         }
 
         private void RefreshMapPanel()
         {
             wallTypeMapPanel.MapImage = SelectedWallType?.Thumbnail;
         }
 
         private void UpdateStatus()
         {
             if (placementMode)
             {
                 statusLbl.Text = "Left-Click drag to add walls, Right-Click drag to remove walls";
             }
             else
             {
                 statusLbl.Text = "Shift to enter placement mode, Left-Click or Right-Click to pick wall";
             }
         }
 
         protected override void PreRenderMap()
         {
             base.PreRenderMap();
 
             previewMap = map.Clone();
             if (placementMode)
             {
                 var location = navigationWidget.MouseCell;
                 if (SelectedWallType != null)
                 {
                     if (previewMap.Metrics.GetCell(location, out int cell))
                     {
                         var overlay = new Overlay { Type = SelectedWallType, Icon = 0, Tint = Color.FromArgb(128, Color.White) };
                         if (previewMap.Technos.CanAdd(cell, overlay) && previewMap.Buildings.CanAdd(cell, overlay))
                         {
                             previewMap.Overlay[cell] = overlay;
                             mapPanel.Invalidate(previewMap, Rectangle.Inflate(new Rectangle(location, new Size(1, 1)), 1, 1));
                         }
                     }
                 }
             }
         }
 
         protected override void PostRenderMap(Graphics graphics)
         {
             base.PostRenderMap(graphics);
 
             var wallPen = new Pen(Color.Green, 4.0f);
             foreach (var (cell, overlay) in previewMap.Overlay)
             {
                 if (overlay.Type.IsWall)
                 {
                     previewMap.Metrics.GetLocation(cell, out Point topLeft);
                     var bounds = new Rectangle(new Point(topLeft.X * Globals.TileWidth, topLeft.Y * Globals.TileHeight), Globals.TileSize);
                     graphics.DrawRectangle(wallPen, bounds);
                 }
             }
         }
 
         #region IDisposable Support
         private bool disposedValue = false;
 
         protected override void Dispose(bool disposing)
         {
             if (!disposedValue)
             {
                 if (disposing)
                 {
                     mapPanel.MouseDown -= MapPanel_MouseDown;
                     mapPanel.MouseUp -= MapPanel_MouseUp;
                     mapPanel.MouseMove -= MapPanel_MouseMove;
                     (mapPanel as Control).KeyDown -= WallTool_KeyDown;
                     (mapPanel as Control).KeyUp -= WallTool_KeyUp;
 
                     wallTypeComboBox.SelectedIndexChanged -= WallTypeComboBox_SelectedIndexChanged;
 
                     navigationWidget.MouseCellChanged -= MouseoverWidget_MouseCellChanged;
                 }
                 disposedValue = true;
             }
 
             base.Dispose(disposing);
         }
         #endregion
     }
 }