MapWindow.cs

   1 using Gtk;
   2 using System;
   3
   4 namespace Weland {
   5     // resizable, scrollable map view
   6     public class MapWindow : Gtk.Window {
   7         public Level Level {
   8             get { return drawingArea.Level; }
   9             set { drawingArea.Level = value; }
  10         }
  11
  12         Wadfile wadfile = new Wadfile();
  13
  14         MenuItem levelMenu;
  15         MenuItem fileItem;
  16
  17         public MapWindow(string title) : base(title) {
  18             AllowShrink = true;
  19
  20             Table table = new Table(2, 2, false);
  21
  22             drawingArea.ConfigureEvent += new ConfigureEventHandler(ConfigureDrawingArea);
  23             drawingArea.ButtonPressEvent += new ButtonPressEventHandler(ButtonPress);
  24             drawingArea.Events = Gdk.EventMask.ExposureMask | Gdk.EventMask.ButtonPressMask;
  25             drawingArea.SetSizeRequest(600, 400);
  26
  27             hadjust = new Adjustment(0, 0, 0, 0, 0, 0);
  28             vadjust = new Adjustment(0, 0, 0, 0, 0, 0);
  29
  30             hscroll = new HScrollbar(hadjust);
  31             vscroll = new VScrollbar(vadjust);
  32
  33             hscroll.ValueChanged += new EventHandler(HValueChangedEvent);
  34             vscroll.ValueChanged += new EventHandler(VValueChangedEvent);
  35             table.Attach(drawingArea, 0, 1, 0, 1, AttachOptions.Shrink | AttachOptions.Expand | AttachOptions.Fill, AttachOptions.Shrink | AttachOptions.Expand | AttachOptions.Fill, 0, 0);
  36             table.Attach(hscroll, 0, 1, 1, 2, AttachOptions.Shrink | AttachOptions.Expand | AttachOptions.Fill, 0, 0, 0);
  37             table.Attach(vscroll, 1, 2, 0, 1, 0, AttachOptions.Shrink | AttachOptions.Expand | AttachOptions.Fill, 0, 0);
  38
  39             AccelGroup agr = new AccelGroup();
  40             AddAccelGroup(agr);
  41
  42             VBox box = new VBox();
  43
  44             MenuBar mb = new MenuBar();
  45             Menu fileMenu = new Menu();
  46             MenuItem openItem = new MenuItem("Open");
  47             openItem.AddAccelerator("activate", agr, new AccelKey(Gdk.Key.o, Gdk.ModifierType.ControlMask, AccelFlags.Visible));
  48             openItem.Activated += new EventHandler(OpenFile);
  49
  50             fileMenu.Append(openItem);
  51
  52             MenuItem exitItem = new MenuItem("Quit");
  53
  54             exitItem.AddAccelerator("activate", agr, new AccelKey(Gdk.Key.q, Gdk.ModifierType.ControlMask, AccelFlags.Visible));
  55             exitItem.Activated += new EventHandler(
  56                     delegate(object obj, EventArgs a) {
  57                             Application.Quit();
  58                     });
  59             fileMenu.Append(exitItem);
  60             fileItem = new MenuItem("File");
  61             fileItem.Submenu = fileMenu;
  62             mb.Append(fileItem);
  63             levelMenu = new MenuItem("Level");
  64             mb.Append(levelMenu);
  65             box.PackStart(mb, false, false, 0);
  66             box.Add(table);
  67
  68             Add(box);
  69
  70         }
  71
  72         MapDrawingArea drawingArea = new MapDrawingArea();
  73         HScrollbar hscroll;
  74         VScrollbar vscroll;
  75
  76         Adjustment hadjust;
  77         Adjustment vadjust;
  78
  79         public void Center(short X, short Y) {
  80             drawingArea.Center(X, Y);
  81             vscroll.Value = drawingArea.Transform.YOffset;
  82             hscroll.Value = drawingArea.Transform.XOffset;
  83         }
  84
  85         void AdjustScrollRange() {
  86             int width, height;
  87             width = drawingArea.Allocation.Width;
  88             height = drawingArea.Allocation.Height;
  89             double scale = drawingArea.Transform.Scale;
  90             double VUpper = short.MaxValue - height / scale;
  91             if (VUpper < short.MinValue)
  92                 VUpper = short.MinValue;
  93
  94             vadjust.Lower = short.MinValue;
  95             vadjust.Upper = VUpper;
  96             if (drawingArea.Transform.YOffset > VUpper) {
  97                 vscroll.Value = VUpper;
  98                 drawingArea.Transform.YOffset = (short) VUpper;
  99             }
 100
 101             vadjust.StepIncrement = 24.0 / scale;
 102             vadjust.PageIncrement = 240.0 / scale;
 103
 104             hadjust.Lower = short.MinValue;
 105             double HUpper = short.MaxValue - width / scale;
 106             if (HUpper < short.MinValue)
 107                 HUpper = short.MinValue;
 108             hadjust.Upper = HUpper;
 109             if (drawingArea.Transform.XOffset > HUpper) {
 110                 hscroll.Value = HUpper;
 111                 drawingArea.Transform.XOffset = (short) HUpper;
 112             }
 113
 114             hadjust.StepIncrement = 24.0 / scale;
 115             hadjust.PageIncrement = 240.0 / scale;
 116
 117             drawingArea.QueueDrawArea(0, 0, width, height);
 118         }
 119
 120         void HValueChangedEvent(object obj, EventArgs e) {
 121             drawingArea.Transform.XOffset = (short) hscroll.Value;
 122
 123             drawingArea.QueueDrawArea(0, 0, drawingArea.Allocation.Width, drawingArea.Allocation.Height);
 124         }
 125
 126         void VValueChangedEvent(object obj, EventArgs e) {
 127             drawingArea.Transform.YOffset = (short) vscroll.Value;
 128
 129             drawingArea.QueueDrawArea(0, 0, drawingArea.Allocation.Width, drawingArea.Allocation.Height);
 130         }
 131
 132         void ConfigureDrawingArea(object obj, ConfigureEventArgs args) {
 133             AdjustScrollRange();
 134             args.RetVal = true;
 135         }
 136
 137         void ButtonPress(object obj, ButtonPressEventArgs args) {
 138             Gdk.EventButton ev = args.Event;
 139             short X = drawingArea.Transform.ToMapX(ev.X);
 140             short Y = drawingArea.Transform.ToMapY(ev.Y);
 141             if (ev.Button == 1) {
 142                 drawingArea.Transform.Scale *= Math.Sqrt(2.0);
 143             } else if (ev.Button == 3) {
 144                 drawingArea.Transform.Scale /= Math.Sqrt(2.0);
 145             }
 146             Center(X, Y);
 147             AdjustScrollRange();
 148             args.RetVal = true;
 149         }
 150
 151         public void SelectLevel(int n) {
 152             Level = new Level();
 153             Level.Load(wadfile.Directory[n]);
 154             drawingArea.Transform = new Transform();
 155             Center(0, 0);
 156             AdjustScrollRange();
 157             Title = wadfile.Directory[n].LevelName;
 158         }
 159
 160         public void OpenFile(string filename) {
 161             wadfile = new Wadfile();
 162             wadfile.Load(filename);
 163             Menu menu = new Menu();
 164             foreach (var kvp in wadfile.Directory) {
 165                 if (kvp.Value.Chunks.ContainsKey(Level.Tag)) {
 166                     MenuItem item = new MenuItem(kvp.Value.LevelName);
 167                     int levelNumber = kvp.Key;
 168                     item.Activated += new EventHandler(delegate(object obj, EventArgs args) { SelectLevel(levelNumber); });
 169                     menu.Append(item);
 170                 }
 171             }
 172             menu.ShowAll();
 173             levelMenu.Submenu = menu;
 174             SelectLevel(0);
 175         }
 176
 177         void OpenFile(object obj, EventArgs args) {
 178             FileChooserDialog d = new FileChooserDialog("Choose the file to open", this, FileChooserAction.Open, "Cancel", ResponseType.Cancel, "Open", ResponseType.Accept);
 179             if (d.Run() == (int) ResponseType.Accept) {
 180                 OpenFile(d.Filename);
 181             }
 182             d.Destroy();
 183         }
 184     }
 185 }