Ooui-tws-port/Samples/BugSweeper/Tile.cs

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#define FIX_WINDOWS_DOUBLE_TAPS // Double-taps don't work well on Windows Runtime as of 2.3.0
#define FIX_WINDOWS_PHONE_NULL_CONTENT // Set Content of Frame to null doesn't work in Windows as of 2.3.0
using System;
using Xamarin.Forms;
namespace BugSweeper
{
enum TileStatus
{
Hidden,
Flagged,
Exposed
}
class Tile : Frame
{
TileStatus tileStatus = TileStatus.Hidden;
Label label;
Image flagImage, bugImage;
static ImageSource flagImageSource;
static ImageSource bugImageSource;
bool doNotFireEvent;
public event EventHandler<TileStatus> TileStatusChanged;
static Tile()
{
flagImageSource = ImageSource.FromResource("Samples.BugSweeper.Images.Xamarin120.png", System.Reflection.Assembly.GetCallingAssembly());
bugImageSource = ImageSource.FromResource("Samples.BugSweeper.Images.RedBug.png", System.Reflection.Assembly.GetCallingAssembly ());
}
public Tile(int row, int col)
{
this.Row = row;
this.Col = col;
this.BackgroundColor = Color.Yellow;
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this.BorderColor = Color.Blue;
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this.Padding = 2;
label = new Label {
Text = " ",
TextColor = Color.Yellow,
BackgroundColor = Color.Blue,
HorizontalTextAlignment = TextAlignment.Center,
VerticalTextAlignment = TextAlignment.Center,
};
flagImage = new Image {
Source = flagImageSource,
};
bugImage = new Image {
Source = bugImageSource
};
TapGestureRecognizer singleTap = new TapGestureRecognizer {
NumberOfTapsRequired = 1
};
singleTap.Tapped += OnSingleTap;
this.GestureRecognizers.Add(singleTap);
#if FIX_WINDOWS_DOUBLE_TAPS
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if (Device.RuntimePlatform != Device.UWP) {
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#endif
TapGestureRecognizer doubleTap = new TapGestureRecognizer {
NumberOfTapsRequired = 2
};
doubleTap.Tapped += OnDoubleTap;
this.GestureRecognizers.Add(doubleTap);
#if FIX_WINDOWS_DOUBLE_TAPS
}
#endif
}
public int Row { private set; get; }
public int Col { private set; get; }
public bool IsBug { set; get; }
public int SurroundingBugCount { set; get; }
public TileStatus Status {
set {
if (tileStatus != value) {
tileStatus = value;
switch (tileStatus) {
case TileStatus.Hidden:
this.Content = null;
#if FIX_WINDOWS_PHONE_NULL_CONTENT
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if (Device.RuntimePlatform == Device.UWP) {
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this.Content = new Label { Text = " " };
}
#endif
break;
case TileStatus.Flagged:
this.Content = flagImage;
break;
case TileStatus.Exposed:
if (this.IsBug) {
this.Content = bugImage;
} else {
this.Content = label;
label.Text =
(this.SurroundingBugCount > 0) ?
this.SurroundingBugCount.ToString() : " ";
}
break;
}
if (!doNotFireEvent && TileStatusChanged != null) {
TileStatusChanged(this, tileStatus);
}
}
}
get {
return tileStatus;
}
}
// Does not fire TileStatusChanged events.
public void Initialize()
{
doNotFireEvent = true;
this.Status = TileStatus.Hidden;
this.IsBug = false;
this.SurroundingBugCount = 0;
doNotFireEvent = false;
}
#if FIX_WINDOWS_DOUBLE_TAPS
bool lastTapSingle;
DateTime lastTapTime;
#endif
void OnSingleTap(object sender, object args)
{
#if FIX_WINDOWS_DOUBLE_TAPS
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if (Device.RuntimePlatform == Device.UWP) {
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if (lastTapSingle && DateTime.Now - lastTapTime < TimeSpan.FromMilliseconds (500)) {
OnDoubleTap (sender, args);
lastTapSingle = false;
} else {
lastTapTime = DateTime.Now;
lastTapSingle = true;
}
}
#endif
switch (this.Status) {
case TileStatus.Hidden:
this.Status = TileStatus.Flagged;
break;
case TileStatus.Flagged:
this.Status = TileStatus.Hidden;
break;
case TileStatus.Exposed:
// Do nothing
break;
}
}
void OnDoubleTap (object sender, object args)
{
this.Status = TileStatus.Exposed;
}
}
}