/// <summary>
/// Places the specified text centered within the specified width. If the text is too long
/// to fit on a single line, the text is optimally divided up and placed on consecutive lines.
/// </summary>
/// <param name="text">Text to draw.</param>
/// <param name="yPos">Y-position to draw the text at.</param>
/// <param name="fontEx">Font info for the text.</param>
/// <param name="width">Width of the area to draw the text in.</param>
private void PlaceAssertText(string text, ref float yPos, ref SpriteFontEx fontEx, int width)
{
AssertText at;
float xPos;
// Check if the text is too long to place on a single line.
if ((xPos = (float)Text.CenterWidthwise(text, fontEx.width, width)) < 5f)
{
// Text can't fit on one line, so optimally divide it up so it can fit on multiple lines.
string[] segments = Text.FitToWidthBalanced(text, fontEx.width, width - 10);
// Place each segment on its own line and center it.
foreach (string textSegment in segments)
{
at.text = textSegment;
at.position.X = (float)Text.CenterWidthwise(textSegment, fontEx.width, width);
at.position.Y = yPos;
assertText.Add(at);
yPos += fontEx.font.LineSpacing;
}
}
else
{
// Text fits on one line.
at.text = text;
at.position.X = xPos;
at.position.Y = yPos;
assertText.Add(at);
yPos += fontEx.font.LineSpacing;
}
}
/// <param name="args">Arguments passed from Debug.Assert.</param>
public AssertScreen(DebugEventArgs args)
: base()
{
assertText = new List <AssertText>();
int width = VolumetricRenderer.Game.GraphicsDevice.PresentationParameters.BackBufferWidth;
SpriteFontEx fontEx = VolumetricRenderer.Game.ScreenManager.DefaultFontEx;
// Set up all the text to be drawn.
float yPos = 0;
PlaceAssertText("ASSERT:", ref yPos, ref fontEx, width);
if (args.Messages.Length > 0)
{
for (int i = 0; i < args.Messages.Length; ++i)
{
PlaceAssertText(args.Messages[i], ref yPos, ref fontEx, width);
yPos += fontEx.font.LineSpacing;
}
}
else
{
PlaceAssertText("(no info)", ref yPos, ref fontEx, width);
yPos += fontEx.font.LineSpacing;
}
PlaceAssertText("IN:", ref yPos, ref fontEx, width);
PlaceAssertText(args.MethodName, ref yPos, ref fontEx, width);
PlaceAssertText(args.FileName + ": line " + args.LineNumber, ref yPos, ref fontEx, width);
yPos += fontEx.font.LineSpacing * 2;
PlaceAssertText("Press Enter to quit...", ref yPos, ref fontEx, width);
// Shift all the text down a bit so it's not right at the top of the screen.
int height = VolumetricRenderer.Game.GraphicsDevice.PresentationParameters.BackBufferHeight;
int yOffset = (height - (fontEx.font.LineSpacing * (assertText.Count + 4))) / 3;
if (yOffset < 5)
{
yOffset = 5;
}
for (int i = 0; i < assertText.Count; ++i)
{
AssertText at = assertText[i];
at.position.Y += yOffset;
assertText[i] = at;
}
// Set up the flashing text parameters.
flashColor = Color.White;
flashRate = TimeSpan.FromMilliseconds(700);
flashDir = -1;
}
public void DrawString(SpriteFontEx spriteFont, StringBuilder text, Vector2 position, Color color, float rotation, Vector2 origin, Vector2 scale, SpriteEffectsEx effects, Matrix transformMatrix)
{
DrawString(spriteFont, text.ToString(), position, color, rotation, origin, scale, effects, transformMatrix);
}
public void DrawString(SpriteFontEx spriteFont, string text, Vector2 position, Color color, float rotation, Vector2 origin, Vector2 scale, SpriteEffectsEx effects, Matrix transformMatrix)
{
if (activeVertices == maxVertices || (currentTexture != null && !currentTexture.Equals(spriteFont.Texture)))
DrawBuffer();
Vector2 stringSize = spriteFont.MeasureString(text);
origin.X *= stringSize.X;
origin.Y *= stringSize.Y;
if ((effects & SpriteEffectsEx.FlipHorizontally) != SpriteEffectsEx.None)
{
scale.X *= -1;
position.X += stringSize.X;
}
if ((effects & SpriteEffectsEx.FlipVertically) != SpriteEffectsEx.None)
{
scale.Y *= -1;
position.Y += stringSize.Y;
}
currentTexture = spriteFont.Texture;
float x = 0, y = 0;
foreach (char c in text)
{
if (c == '\n')
{
y += spriteFont.LineSpacing;
continue;
}
if (c == '\r')
{
x = 0;
continue;
}
SpriteFontEx.CharacterData cd = spriteFont[c];
if (cd.width == 0 || cd.height == 0)
{
x += cd.advanceX;
continue;
}
if (activeVertices == maxVertices)
DrawBuffer();
int width = cd.width;
int height = cd.height;
int textureWidth = currentTexture.Width;
int textureHeight = currentTexture.Height;
Vector3 v;
Matrix transform = Matrix.CreateTranslation(x + cd.offsetX, y + cd.offsetY, 0) *
Matrix.CreateTranslation(-origin.X, -origin.Y, 0) *
Matrix.CreateScale(scale.X, scale.Y, 1.0f) *
Matrix.CreateRotationZ(rotation) *
Matrix.CreateTranslation(position.X, position.Y, 0) *
transformMatrix;
v = new Vector3(0, 0, 0);
v = Vector3.Transform(v, transform);
vertices[activeVertices].Position = v;
vertices[activeVertices].Color = color;
vertices[activeVertices++].TextureCoordinate = new Vector2((float)cd.x / textureWidth, (float)cd.y / textureHeight);
v = new Vector3(width, 0, 0);
v = Vector3.Transform(v, transform);
vertices[activeVertices].Position = v;
vertices[activeVertices].Color = color;
vertices[activeVertices++].TextureCoordinate = new Vector2((float)(cd.x + cd.width) / textureWidth, (float)cd.y / textureHeight);
v = new Vector3(0, height, 0);
v = Vector3.Transform(v, transform);
vertices[activeVertices].Position = v;
vertices[activeVertices].Color = color;
vertices[activeVertices++].TextureCoordinate = new Vector2((float)cd.x / textureWidth, (float)(cd.y + cd.height) / textureHeight);
v = new Vector3(width, height, 0);
v = Vector3.Transform(v, transform);
vertices[activeVertices].Position = v;
vertices[activeVertices].Color = color;
vertices[activeVertices++].TextureCoordinate = new Vector2((float)(cd.x + cd.width) / textureWidth, (float)(cd.y + cd.height) / textureHeight);
x += cd.advanceX;
}
}
public void DrawString(SpriteFontEx spriteFont, StringBuilder text, Vector2 position, Color color, float rotation, Vector2 origin, Vector2 scale, SpriteEffectsEx effects, float layerDepth)
{
DrawString(spriteFont, text.ToString(), position, color, rotation, origin, scale, effects, Matrix.Identity);
}
public void DrawString(SpriteFontEx spriteFont, string text, Vector2 position, Color color, float rotation, Vector2 origin, float scale, SpriteEffectsEx effects, float layerDepth)
{
DrawString(spriteFont, text, position, color, rotation, origin, new Vector2(scale), effects, Matrix.Identity);
}
public void DrawString(SpriteFontEx spriteFont, StringBuilder text, Vector2 position, Color color)
{
DrawString(spriteFont, text.ToString(), position, color, 0, Vector2.Zero, Vector2.One, SpriteEffectsEx.None, Matrix.Identity);
}
