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add SpriteBatch text rendering method overloads accepting a StringBuilder directly

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Gered 2013-08-18 17:01:58 -04:00
parent ab33f3bfe4
commit 8831788f14
2 changed files with 123 additions and 30 deletions
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84
Blarg.GameFramework/Graphics/SpriteBatch.cs
View file

@ -518,6 +518,61 @@ namespace Blarg.GameFramework.Graphics
}
}
public void Render(SpriteFont font, int x, int y, Color color, StringBuilder text)
{
Render(font, x, y, ref color, 1.0f, text);
}
public void Render(SpriteFont font, int x, int y, ref Color color, StringBuilder text)
{
Render(font, x, y, ref color, 1.0f, text);
}
public void Render(SpriteFont font, int x, int y, Color color, float scale, StringBuilder text)
{
Render(font, x, y, ref color, scale, text);
}
public void Render(SpriteFont font, int x, int y, ref Color color, float scale, StringBuilder text)
{
float scaledLetterHeight = (float)font.LetterHeight * scale;
y = (int)FixYCoord(y, scaledLetterHeight);
float drawX = (float)x;
float drawY = (float)y;
for (int i = 0; i < text.Length; ++i)
{
char c = text[i];
if (c == '\n')
{
// new line
drawX = (float)x;
drawY -= scaledLetterHeight;
}
else
{
RectF texCoords;
Rect dimensions;
font.GetCharTexCoords(c, out texCoords);
font.GetCharDimensions(c, out dimensions);
float scaledGlyphWidth = (float)dimensions.Width * scale;
float scaledGlyphHeight = (float)dimensions.Height * scale;
AddSprite(
font.Texture,
drawX, drawY, drawX + scaledGlyphWidth, drawY + scaledGlyphHeight,
texCoords.Left, texCoords.Top, texCoords.Right, texCoords.Bottom,
ref color
);
drawX += scaledGlyphWidth;
}
}
}
public void Render(SpriteFont font, Vector3 worldPosition, Color color, string text)
{
Render(font, ref worldPosition, ref color, 1.0f, text);
@ -593,6 +648,35 @@ namespace Blarg.GameFramework.Graphics
Render(font, ref worldPosition, ref color, scale, _buffer.ToString());
}
public void Render(SpriteFont font, Vector3 worldPosition, Color color, StringBuilder text)
{
Render(font, ref worldPosition, ref color, 1.0f, text);
}
public void Render(SpriteFont font, ref Vector3 worldPosition, ref Color color, StringBuilder text)
{
Render(font, ref worldPosition, ref color, 1.0f, text);
}
public void Render(SpriteFont font, Vector3 worldPosition, Color color, float scale, StringBuilder text)
{
Render(font, ref worldPosition, ref color, scale, text);
}
public void Render(SpriteFont font, ref Vector3 worldPosition, ref Color color, float scale, StringBuilder text)
{
var screenCoordinates = GraphicsDevice.ViewContext.Camera.Project(ref worldPosition, ref _previousModelView, ref _previousProjection);
int textWidth;
int textHeight;
font.MeasureString(out textWidth, out textHeight, scale, text);
screenCoordinates.X -= textWidth / 2;
screenCoordinates.Y -= textHeight / 2;
Render(font, screenCoordinates.X, screenCoordinates.Y, ref color, scale, text);
}
#endregion
#region Internal Sprite Addition / Management

69
Blarg.GameFramework/Graphics/SpriteFont.cs
View file

@ -97,36 +97,7 @@ namespace Blarg.GameFramework.Graphics
public void MeasureString(out int width, out int height, string format, params object[] args)
{
_buffer.Clear();
_buffer.AppendFormat(format, args);
int textLength = _buffer.Length;
int currentMaxWidth = 0;
int left = 0;
int numLines = 1;
for (int i = 0; i < textLength; ++i)
{
char c = _buffer[i];
if (c == '\n')
{
// new line
left = 0;
++numLines;
}
else
{
Rect charSize = new Rect();
GetCharDimensions(c, out charSize);
left += charSize.Width;
}
currentMaxWidth = Math.Max(left, currentMaxWidth);
}
width = currentMaxWidth;
height = numLines * LetterHeight;
MeasureString(out width, out height, 1.0f, format, args);
}
public void MeasureString(out int width, out int height, float scale, string format, params object[] args)
@ -164,5 +135,43 @@ namespace Blarg.GameFramework.Graphics
width = (int)Math.Ceiling(currentMaxWidth);
height = (int)(numLines * scaledLetterHeight);
}
public void MeasureString(out int width, out int height, StringBuilder text)
{
MeasureString(out width, out height, 1.0f, text);
}
public void MeasureString(out int width, out int height, float scale, StringBuilder text)
{
int textLength = text.Length;
float scaledLetterHeight = (float)LetterHeight * scale;
float currentMaxWidth = 0.0f;
float left = 0.0f;
int numLines = 1;
for (int i = 0; i < textLength; ++i)
{
char c = text[i];
if (c == '\n')
{
// new line
left = 0.0f;
++numLines;
}
else
{
Rect charSize = new Rect();
GetCharDimensions(c, out charSize);
left += (float)charSize.Width * scale;
}
currentMaxWidth = Math.Max(left, currentMaxWidth);
}
width = (int)Math.Ceiling(currentMaxWidth);
height = (int)(numLines * scaledLetterHeight);
}
}
}