protected override Theme Read(ContentReader input, Theme existingInstance)
{
if (existingInstance == null)
{
existingInstance = new Theme();
}
else
{
foreach (var cursor in existingInstance.Cursors)
{
PlatformHelper.DestroyCursor(cursor.Cursor);
}
existingInstance.Cursors.Clear();
existingInstance.Fonts.Clear();
existingInstance.Styles.Clear();
existingInstance.Textures.Clear();
}
existingInstance.Content = input.ContentManager;
// Read cursors.
int numberOfCursors = input.ReadInt32();
for (int i = 0; i < numberOfCursors; i++)
{
var cursor = new ThemeCursor();
cursor.Name = input.ReadString();
cursor.IsDefault = input.ReadBoolean();
cursor.Cursor = LoadCursor(input);
existingInstance.Cursors.Add(cursor);
}
// Read fonts.
int numberOfFonts = input.ReadInt32();
for (int i = 0; i < numberOfFonts; i++)
{
var font = new ThemeFont();
font.Name = input.ReadString();
font.IsDefault = input.ReadBoolean();
font.Font = input.ReadExternalReference <SpriteFont>();
existingInstance.Fonts.Add(font);
}
// Read textures.
int numberOfTextures = input.ReadInt32();
for (int i = 0; i < numberOfTextures; i++)
{
var texture = new ThemeTexture();
texture.Name = input.ReadString();
texture.IsDefault = input.ReadBoolean();
texture.Texture = input.ReadExternalReference <Texture2D>();
existingInstance.Textures.Add(texture);
}
// Read styles.
int numberOfStyles = input.ReadInt32();
var inheritanceTable = new Dictionary <ThemeStyle, string>();
for (int i = 0; i < numberOfStyles; i++)
{
var style = new ThemeStyle();
style.Name = input.ReadString();
inheritanceTable.Add(style, input.ReadString());
// Read attributes
int numberOfAttributes = input.ReadInt32();
for (int j = 0; j < numberOfAttributes; j++)
{
var attribute = new ThemeAttribute();
attribute.Name = input.ReadString();
attribute.Value = input.ReadString();
style.Attributes.Add(attribute);
}
// Read states.
int numberOfStates = input.ReadInt32();
for (int j = 0; j < numberOfStates; j++)
{
var state = new ThemeState();
state.Name = input.ReadString();
state.IsInherited = input.ReadBoolean();
// Read images.
int numberOfImages = input.ReadInt32();
for (int k = 0; k < numberOfImages; k++)
{
var image = new ThemeImage();
image.Name = input.ReadString();
string textureName = input.ReadString();
if (!string.IsNullOrEmpty(textureName))
{
ThemeTexture texture;
if (existingInstance.Textures.TryGet(textureName, out texture))
{
image.Texture = texture;
}
}
image.SourceRectangle = input.ReadRawObject <Rectangle>();
image.Margin = input.ReadRawObject <Vector4F>();
image.HorizontalAlignment = (HorizontalAlignment)input.ReadInt32();
image.VerticalAlignment = (VerticalAlignment)input.ReadInt32();
image.TileMode = (TileMode)input.ReadInt32();
image.Border = input.ReadRawObject <Vector4F>();
image.IsOverlay = input.ReadBoolean();
image.Color = input.ReadColor();
state.Images.Add(image);
}
bool hasBackground = input.ReadBoolean();
if (hasBackground)
{
state.Background = input.ReadColor();
}
bool hasForeground = input.ReadBoolean();
if (hasForeground)
{
state.Foreground = input.ReadColor();
}
bool hasOpacity = input.ReadBoolean();
if (hasOpacity)
{
state.Opacity = input.ReadSingle();
}
style.States.Add(state);
}
existingInstance.Styles.Add(style);
}
// Resolve style inheritance.
foreach (var entry in inheritanceTable)
{
var style = entry.Key;
string parentName = entry.Value;
if (string.IsNullOrEmpty(parentName))
{
continue;
}
ThemeStyle parent;
if (existingInstance.Styles.TryGet(parentName, out parent))
{
style.Inherits = parent;
}
}
return(existingInstance);
}