public MainPage(String songStringFromUrl = null)
{
InitializeComponent();
BackgroundColor = Color.FromHex("#000000"); //* Set page style
NavigationPage.SetHasNavigationBar(this, false); //*
DependencyService.Get <IStatusBar>().HideStatusBar(); // Make sure status bar is hidden
MakeStepGrid();
//PinchGestureRecognizer pinchRecognizer = new PinchGestureRecognizer(); //
//pinchRecognizer.PinchUpdated += HandlePinch; // Handle when user pinches
//stepgrid.GestureRecognizers.Add(pinchRecognizer); //
// Initialize the SongPlayer
player = new SongPlayer();
//Load default tempo and instruments, and if this is the first time the user has launched the app, show the startup song
Song startSong = FileUtilities.LoadSongFromStream(FileUtilities.LoadEmbeddedResource("firsttimesong.txt"));
if (!Directory.Exists(FileUtilities.PathToSongDirectory))
{
Directory.CreateDirectory(FileUtilities.PathToSongDirectory);
this.song = startSong;
lastLoadedSongName = "Initial beat";
UpdateStepGridToMatchSong();
FileUtilities.SaveSongToFile(startSong, "Initial beat");
firstTime = true;
}
else
{
song = new Song(NumColumns, startSong.Instruments, startSong.Tempo);
firstTime = false;
}
if (songStringFromUrl != null)
{
firstTime = false;
song = FileUtilities.GetSongFromSongString(songStringFromUrl);
UpdateStepGridToMatchSong();
}
playImageName = App.isTablet ? "play_Tab.png" : "play.png";
stopImageName = App.isTablet ? "stop_Tab.png" : "stop.png";
MakeSideBar();
// Initialize the highlight box
highlights = new BoxView[2];
for (int i = 0; i < 2; i++)
{
highlights[i] = new BoxView()
{
Color = Color.White, Opacity = brightnessIncrease, InputTransparent = true
};
}
player.BeatStarted += HighlightColumns; // Add an event listener to keep highlight in time with beat
//Set up a master grid with 3 columns and 2 rows to eventually place stepgrid, sidebar, and scrollbars in.
mastergrid = new Grid {
ColumnSpacing = 2, RowSpacing = 2
};
mastergrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(14, GridUnitType.Absolute)
}); //spot for up-down scrollbar
mastergrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(8, GridUnitType.Star)
}); // spot for stepgrid
mastergrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
}); // spot for sidebar
mastergrid.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
}); // horizontal spot for everything, but side scrollbar
mastergrid.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(14, GridUnitType.Absolute)
}); // spot for side scrollbar
// Make vertical scrollbar, size doesn't matter because constraints are used to size it later
verticalScrollBar = new BoxView
{
BackgroundColor = Color.FromHex("D3D3D3"),
WidthRequest = 1,
HeightRequest = 1,
};
// Make vertical scrollbar
horizontalScrollBar = new BoxView
{
BackgroundColor = Color.FromHex("D3D3D3"),
WidthRequest = 1,
HeightRequest = 1,
};
// This calculates the pixel values for the width and height of the whole scroller (including offscreen)
scrollerActualHeight = (miniGridHeight + stepGridSpacing) * NumRows - stepGridSpacing;
scrollerActualWidth = (miniGridWidth + stepGridSpacing) * NumColumns - stepGridSpacing;
// Initialize scrollview and put stepgrid inside it
scroller = new ScrollView
{
Orientation = ScrollOrientation.Both //Both vertical and horizontal orientation
};
scroller.Content = stepgrid;
mastergrid.Children.Add(scroller, 1, 0);
// Make the Relative layouts that will hold the sidebars and place them in their proper positions in mastergrid
verticalBarArea = new RelativeLayout();
mastergrid.Children.Add(verticalBarArea, 0, 0);
horizontalBarArea = new RelativeLayout();
mastergrid.Children.Add(horizontalBarArea, 1, 1);
DrawScrollBar(horizontalScrollBar);
DrawScrollBar(verticalScrollBar);
//scroller.Scrolled += UpdateScrollBars; // Scrolled event that calls method to update scrollbars
scroller.Scrolled += BoundedScroll;
mastergrid.Children.Add(sidebar, 2, 0); // Add sidebar to final column of mastergrid
Grid.SetRowSpan(sidebar, 2); //make sidebar take up both rows in rightmost column
Content = mastergrid;
}
public MainPage()
{
InitializeComponent();
// Initializing the song player and noteArray
noteArray = new SongPlayer.Note[NumColumns, NumRows]; //stored this way because C# is row-major and we want to access a column at a time
player = new SongPlayer(noteArray);
// Initializing the colorMap
colorMap = new Dictionary <Color, SongPlayer.Instrument>();
colorMap[Red] = player.LoadInstrument("Snare");
colorMap[Blue] = player.LoadInstrument("YRM1x Atmosphere");
colorMap[Green] = player.LoadInstrument("Bass Drum");
colorMap[Yellow] = player.LoadInstrument("Hi-Hat");
// Initialize color of highlighted buttons
highLightedGrey = HighLightedVersion(Grey);
highLightedRed = HighLightedVersion(Red);
highLightedBlue = HighLightedVersion(Blue);
highLightedGreen = HighLightedVersion(Green);
highLightedYellow = HighLightedVersion(Yellow);
// Initaialize the array of buttons
buttonArray = new Button[NumColumns, NumRows]; //stored this way because C# is row-major and we want to access a column at a time
BackgroundColor = Color.FromHex("#000000"); // Make background color black
Style greyButton = new Style(typeof(Button)) // Button style for testing grid
{
Setters =
{
new Setter {
Property = Button.BackgroundColorProperty, Value = Grey
},
new Setter {
Property = Button.BorderRadiusProperty, Value = 0
},
}
};
//Set up a master grid with 2 columns to eventually place stepgrid and sidebar in.
mastergrid = new Grid {
ColumnSpacing = 2
};
mastergrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(8, GridUnitType.Star)
});
mastergrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
//Set up grid of note squares
stepgrid = new Grid {
ColumnSpacing = 2, RowSpacing = 2
};
//Initialize the number of rows and columns
for (int i = 0; i < NumRows; i++)
{
stepgrid.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
}
for (int i = 0; i < NumColumns; i++)
{
stepgrid.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
}
//Add the note buttons to the grid
for (int i = 0; i < NumRows; i++)
{
for (int j = 0; j < NumColumns; j++)
{
Button button = new Button {
Style = greyButton
}; // Make a new button
stepgrid.Children.Add(button, j, i); // Add it to the grid
button.Clicked += OnButtonClicked; // Add it to stepsquare event handler
noteArray[j, i] = SongPlayer.Note.None; // Add a placeholder to songArray
buttonArray[j, i] = button; // Add button to buttonArray
}
}
// Make the sidebar
sidebar = new Grid {
ColumnSpacing = 1, RowSpacing = 1
};
for (int i = 0; i < NumInstruments; i++)
{
sidebar.RowDefinitions.Add(new RowDefinition {
Height = new GridLength(1, GridUnitType.Star)
});
}
sidebar.ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(1, GridUnitType.Star)
});
// Fill sidebar it with buttons
Color[] colors = new Color[] { Red, Blue, Green, Yellow }; // Array of colors
for (int i = 0; i < colors.Length; i++)
{
Button button = new Button {
BackgroundColor = colors[i], BorderColor = Color.Black, BorderWidth = 3
}; // Make a new button
sidebar.Children.Add(button, 0, i); // Add it to the sidebar
button.Clicked += OnSidebarClicked; // Add to sidebar event handler
}
// Set up scroll view and put grid inside it
scroller = new ScrollView {
Orientation = ScrollOrientation.Vertical //Both vertical and horizontal orientation
};
scroller.Content = stepgrid;
// Add the scroller (which contains stepgrid) and sidebar to mastergrid
mastergrid.Children.Add(scroller, 0, 0); // Add scroller to first column of mastergrid
mastergrid.Children.Add(sidebar, 1, 0); // Add sidebar to final column of mastergrid
//Grid.SetRowSpan(sidebar, NumRows); // Make sure that it spans the whole column
Content = mastergrid;
player.BeatStarted += HighlightColumns;
player.BeginPlaying(240);
}