WP7备注(25)(Jot)

Jot Settings:

public List<StrokeCollection> StrokeCollections { get; set; }
public int PageNumber { set; get; }
public Color Foreground { set; get; }
public Color Background { set; get; }
public int StrokeWidth { set; get; }

public JotAppSettings()
{
this.PageNumber = 0;
this.Foreground = (Color)Application.Current.Resources["PhoneForegroundColor"];
this.Background = (Color)Application.Current.Resources["PhoneBackgroundColor"];
this.StrokeWidth = 3;
}

public void Save()
{
IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication();
IsolatedStorageFileStream stream = iso.CreateFile("settings.xml");
StreamWriter writer = new StreamWriter(stream);
XmlSerializer ser = new XmlSerializer(typeof(JotAppSettings));
ser.Serialize(writer, this);
writer.Close();
iso.Dispose();
}

public static JotAppSettings Load()
{
JotAppSettings settings;
IsolatedStorageFile iso = IsolatedStorageFile.GetUserStoreForApplication();
if (iso.FileExists("settings.xml"))
{
IsolatedStorageFileStream stream = iso.OpenFile("settings.xml",
FileMode.Open);
StreamReader reader = new StreamReader(stream);
XmlSerializer ser = new XmlSerializer(typeof(JotAppSettings));
settings = ser.Deserialize(reader) as JotAppSettings;
reader.Close();
}
else
{
// Create and initialize new JotAppSettings object
settings = new JotAppSettings();
settings.StrokeCollections = new List<StrokeCollection>();
settings.StrokeCollections.Add(new StrokeCollection());
}
iso.Dispose();
return settings;
}

App集中存取:

public JotAppSettings AppSettings { set; get; }
private void Application_Launching(object sender, LaunchingEventArgs e)
{
AppSettings = JotAppSettings.Load();
}
private void Application_Activated(object sender, ActivatedEventArgs e)
{
AppSettings = JotAppSettings.Load();
}
private void Application_Deactivated(object sender, DeactivatedEventArgs e)
{
AppSettings.Save();
}
private void Application_Closing(object sender, ClosingEventArgs e)
{
AppSettings.Save();
}

Jot Touch:

public partial class MainPage : PhoneApplicationPage
{
JotAppSettings appSettings = (Application.Current as App).AppSettings;
Dictionary<int, Stroke> activeStrokes = new Dictionary<int, Stroke>();
public MainPage()
{
InitializeComponent();
inkPresenter.Strokes =
appSettings.StrokeCollections[appSettings.PageNumber];
inkPresenter.Background = new SolidColorBrush(appSettings.Background);

TitleAndAppbarUpdate();
Touch.FrameReported += OnTouchFrameReported;
}

void OnTouchFrameReported(object sender, TouchFrameEventArgs args)
{
TouchPoint primaryTouchPoint = args.GetPrimaryTouchPoint(null);
if (primaryTouchPoint != null && primaryTouchPoint.Action == TouchAction.Down)
args.SuspendMousePromotionUntilTouchUp();
TouchPointCollection touchPoints = args.GetTouchPoints(inkPresenter);
foreach (TouchPoint touchPoint in touchPoints)
{
Point pt = touchPoint.Position;
int id = touchPoint.TouchDevice.Id;
switch (touchPoint.Action)
{
case TouchAction.Down:
Stroke stroke = new Stroke();
stroke.DrawingAttributes.Color = appSettings.Foreground;
stroke.DrawingAttributes.Height = appSettings.StrokeWidth;
stroke.DrawingAttributes.Width = appSettings.StrokeWidth;
stroke.StylusPoints.Add(new StylusPoint(pt.X, pt.Y));
inkPresenter.Strokes.Add(stroke);
activeStrokes.Add(id, stroke);
break;
case TouchAction.Move:
activeStrokes[id].StylusPoints.Add(new StylusPoint(pt.X, pt.Y));
break;
case TouchAction.Up:
activeStrokes[id].StylusPoints.Add(new StylusPoint(pt.X, pt.Y));
activeStrokes.Remove(id);
TitleAndAppbarUpdate();
break;
}
}
}
}

Jot ApplicationBar:

<phone:PhoneApplicationPage.ApplicationBar>
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton x:Name="appbarAddButton"
IconUri="/Images/appbar.add.rest.png"
Text="add page"
Click="OnAppbarAddClick" />
<shell:ApplicationBarIconButton x:Name="appbarLastButton"
IconUri="/Images/appbar.back.rest.png"
Text="last page"
Click="OnAppbarLastClick" />
<shell:ApplicationBarIconButton x:Name="appbarNextButton"
IconUri="/Images/appbar.next.rest.png"
Text="next page"
Click="OnAppbarNextClick" />
<shell:ApplicationBarIconButton x:Name="appbarDeleteButton"
IconUri="/Images/appbar.delete.rest.png"
Text="delete page"
Click="OnAppbarDeleteClick" />
<shell:ApplicationBar.MenuItems>
<shell:ApplicationBarMenuItem Text="swap colors"
Click="OnAppbarSwapColorsClick" />
<shell:ApplicationBarMenuItem Text="light stroke width"
Click="OnAppbarSetStrokeWidthClick" />
<shell:ApplicationBarMenuItem Text="medium stroke width"
Click="OnAppbarSetStrokeWidthClick" />
<shell:ApplicationBarMenuItem Text="heavy stroke width"
Click="OnAppbarSetStrokeWidthClick" />
</shell:ApplicationBar.MenuItems>
</shell:ApplicationBar>
</phone:PhoneApplicationPage.ApplicationBar>

public MainPage()
{
InitializeComponent();
appbarLastButton = this.ApplicationBar.Buttons[1] as ApplicationBarIconButton;
appbarNextButton = this.ApplicationBar.Buttons[2] as ApplicationBarIconButton;
appbarDeleteButton = this.ApplicationBar.Buttons[3] as ApplicationBarIconButton;
}

void OnAppbarAddClick(object sender, EventArgs args)
{
StrokeCollection strokes = new StrokeCollection();
appSettings.PageNumber += 1;
appSettings.StrokeCollections.Insert(appSettings.PageNumber, strokes);
inkPresenter.Strokes = strokes;
TitleAndAppbarUpdate();
}
void OnAppbarLastClick(object sender, EventArgs args)
{
appSettings.PageNumber -= 1;
inkPresenter.Strokes = appSettings.StrokeCollections[appSettings.PageNumber];
TitleAndAppbarUpdate();
}
void OnAppbarNextClick(object sender, EventArgs args)
{
appSettings.PageNumber += 1;
inkPresenter.Strokes = appSettings.StrokeCollections[appSettings.PageNumber];
TitleAndAppbarUpdate();
}
void OnAppbarDeleteClick(object sender, EventArgs args)
{
MessageBoxResult result = MessageBox.Show("Delete this page?", "Jot",
MessageBoxButton.OKCancel);
if (result == MessageBoxResult.OK)
{
if (appSettings.StrokeCollections.Count == 1)
{
appSettings.StrokeCollections[0].Clear();
}
else
{
appSettings.StrokeCollections.RemoveAt(appSettings.PageNumber);
if (appSettings.PageNumber == appSettings.StrokeCollections.Count)
appSettings.PageNumber -= 1;
inkPresenter.Strokes =
appSettings.StrokeCollections[appSettings.PageNumber];
}
TitleAndAppbarUpdate();
}
}

void OnAppbarSwapColorsClick(object sender, EventArgs args)
{
Color foreground = appSettings.Background;
appSettings.Background = appSettings.Foreground;
appSettings.Foreground = foreground;
inkPresenter.Background = new SolidColorBrush(appSettings.Background);
foreach (StrokeCollection strokeCollection in appSettings.StrokeCollections)
foreach (Stroke stroke in strokeCollection)
stroke.DrawingAttributes.Color = appSettings.Foreground;
}
void OnAppbarSetStrokeWidthClick(object sender, EventArgs args)
{
ApplicationBarMenuItem item = sender as ApplicationBarMenuItem;
if (item.Text.StartsWith("light"))
appSettings.StrokeWidth = 1;
else if (item.Text.StartsWith("medium"))
appSettings.StrokeWidth = 3;
else if (item.Text.StartsWith("heavy"))
appSettings.StrokeWidth = 5;
}

void TitleAndAppbarUpdate()
{
pageInfoTitle.Text = String.Format(" - PAGE {0} OF {1}",
appSettings.PageNumber + 1,
appSettings.StrokeCollections.Count);
appbarLastButton.IsEnabled = appSettings.PageNumber > 0;
appbarNextButton.IsEnabled =
appSettings.PageNumber < appSettings.StrokeCollections.Count - 1;
appbarDeleteButton.IsEnabled = (appSettings.StrokeCollections.Count > 1) ||
(appSettings.StrokeCollections[0].Count > 0);
}