protected void ReplaceStyle(TextStyle oldStyle, TextStyle newStyle)
{
if (oldStyle.Equals(newStyle))
return;
Dirty = true;
foreach (TextChunk chunk in textChunks)
{
if (chunk.style == oldStyle)
chunk.style = newStyle;
}
}
public void AddText(string textString, TextStyle style)
{
TextChunk lastChunk = null;
if (textChunks.Count > 0)
lastChunk = textChunks[textChunks.Count - 1];
int chunk_start = textBuffer.Length;
textBuffer.Append(textString);
int chunk_end = textBuffer.Length;
if (lastChunk != null &&
lastChunk.style.Equals(style))
{
// Add to the existing chunk
lastChunk.range.end = chunk_end;
}
else
{
// Add a new chunk
textChunks.Add(new TextChunk(new TextRange(chunk_start, chunk_end), new TextStyle(style)));
}
UpdateText();
}
public void ApplyStyle(TextStyle style)
{
foreach (TextChunk chunk in textChunks) {
if (chunk.style.Equals(style))
continue;
chunk.style = style;
Dirty = true;
}
}
private void DrawText(string text, int offset, int count, Vector3 drawPos, Rect clipRect, TextStyle style)
{
if (log.IsDebugEnabled)
log.DebugFormat("Drawing '{0}' at [{1},{2}] clipped by {3}", text.Substring(offset, count), drawPos.x, drawPos.y, clipRect);
float textZ = drawPos.z - (int)SubLevel.Normal * GuiZSubLevelStep;
float shadowZ = drawPos.z - (int)SubLevel.Shadow * GuiZSubLevelStep;
float bgZ = drawPos.z - (int)SubLevel.Background * GuiZSubLevelStep;
SimpleFont textFont = this.Font;
float x = textFont.GetTextExtent(text, offset, count);
float y = textFont.LineSpacing;
if (clipRect != null) {
if (drawPos.x > clipRect.Right || drawPos.x + x < clipRect.Left ||
drawPos.y > clipRect.Bottom || drawPos.y + y < clipRect.Top) {
// this line is entirely out of bounds - technically, the drop shadow
// could extend outside this area (as could the font), but I think
// that if we wouldn't have drawn the background for the text, we don't
// need to draw the text.
log.DebugFormat("text with dimensions ({4},{5}) fully clipped by rect [{0},{1} - {2},{3}]", clipRect.Left, clipRect.Top, clipRect.Right, clipRect.Bottom, x, y);
return;
}
}
// Draw these on integer boundaries
drawPos.x = (int)drawPos.x;
drawPos.y = (int)drawPos.y;
drawPos.z = textZ;
ColorRect colorRect;
if (style.bgEnabled) {
colorRect = new ColorRect(style.bgColor);
colorRect.SetAlpha(this.EffectiveAlpha);
Rect bgRect = new Rect(drawPos.x, drawPos.x + x,
drawPos.y, drawPos.y + y);
bgImage.Draw(bgRect, bgZ, clipRect, colorRect);
}
colorRect = new ColorRect(style.textColor);
colorRect.SetAlpha(this.EffectiveAlpha);
textFont.DrawTextLine(text, offset, count, drawPos, clipRect, colorRect);
if (style.shadowEnabled) {
drawPos.x += shadowOffset.X;
drawPos.y += shadowOffset.Y;
drawPos.z = shadowZ;
colorRect = new ColorRect(style.shadowColor);
colorRect.SetAlpha(this.EffectiveAlpha);
textFont.DrawTextLine(text, offset, count, drawPos, clipRect, colorRect);
}
}
public TextChunk(TextRange range, TextStyle style)
{
this.range = range;
this.style = style;
}
public TextStyle(TextStyle other)
{
textColor = new ColorEx(other.textColor);
bgColor = new ColorEx(other.bgColor);
shadowColor = new ColorEx(other.shadowColor);
shadowEnabled = other.shadowEnabled;
bgEnabled = other.bgEnabled;
}
public TextChunk(TextRange range, TextStyle style)
{
this.range = range;
this.style = style;
}
private void DrawText(string text, int offset, int count, Vector3 drawPos, Rect clipRect, TextStyle style)
{
if (log.IsDebugEnabled)
{
log.DebugFormat("Drawing '{0}' at [{1},{2}] clipped by {3}", text.Substring(offset, count), drawPos.x, drawPos.y, clipRect);
}
float textZ = drawPos.z - (int)SubLevel.Normal * GuiZSubLevelStep;
float shadowZ = drawPos.z - (int)SubLevel.Shadow * GuiZSubLevelStep;
float bgZ = drawPos.z - (int)SubLevel.Background * GuiZSubLevelStep;
SimpleFont textFont = this.Font;
float x = textFont.GetTextExtent(text, offset, count);
float y = textFont.LineSpacing;
if (clipRect != null)
{
if (drawPos.x > clipRect.Right || drawPos.x + x < clipRect.Left ||
drawPos.y > clipRect.Bottom || drawPos.y + y < clipRect.Top)
{
// this line is entirely out of bounds - technically, the drop shadow
// could extend outside this area (as could the font), but I think
// that if we wouldn't have drawn the background for the text, we don't
// need to draw the text.
log.DebugFormat("text with dimensions ({4},{5}) fully clipped by rect [{0},{1} - {2},{3}]", clipRect.Left, clipRect.Top, clipRect.Right, clipRect.Bottom, x, y);
return;
}
}
// Draw these on integer boundaries
drawPos.x = (int)drawPos.x;
drawPos.y = (int)drawPos.y;
drawPos.z = textZ;
ColorRect colorRect;
if (style.bgEnabled)
{
colorRect = new ColorRect(style.bgColor);
colorRect.SetAlpha(this.EffectiveAlpha);
Rect bgRect = new Rect(drawPos.x, drawPos.x + x,
drawPos.y, drawPos.y + y);
bgImage.Draw(bgRect, bgZ, clipRect, colorRect);
}
colorRect = new ColorRect(style.textColor);
colorRect.SetAlpha(this.EffectiveAlpha);
textFont.DrawTextLine(text, offset, count, drawPos, clipRect, colorRect);
if (style.shadowEnabled)
{
drawPos.x += shadowOffset.X;
drawPos.y += shadowOffset.Y;
drawPos.z = shadowZ;
colorRect = new ColorRect(style.shadowColor);
colorRect.SetAlpha(this.EffectiveAlpha);
textFont.DrawTextLine(text, offset, count, drawPos, clipRect, colorRect);
}
}
