Updated TextPrinter.PerformLayout to use the new GdiPlus-based MeasureCharacterRanges function.

This commit is contained in:
the_fiddler 2008-06-22 16:30:01 +00:00
parent 314bec1c66
commit 4b47612234

View file

@ -194,8 +194,8 @@ namespace OpenTK.Graphics
//ushort[] indices = new ushort[6 * text.Length];
float x_pos = 0, y_pos = 0;
ushort i = 0, index_count = 0, vertex_count = 0, last_break_point = 0;
Box2 rect = new Box2();
float char_width, char_height, measured_width, measured_height;
RectangleF rect = new RectangleF();
float char_width, char_height;
int texture;
font.LoadGlyphs(text);
@ -206,51 +206,48 @@ namespace OpenTK.Graphics
if (alignment == StringAlignment.Near && !rightToLeft || alignment == StringAlignment.Far && rightToLeft)
{
foreach (char c in text)
ICollection<RectangleF> ranges = new List<RectangleF>();
font.MeasureCharacterRanges(text, StringFormat.GenericTypographic, ref ranges);
int current = 0;
//foreach (char c in text)
foreach (RectangleF range in ranges)
{
char c = text[current++];
if (Char.IsSeparator(c))
last_break_point = index_count;
if (c != '\n' && c != '\r')
{
font.GlyphData(c, out char_width, out char_height, out rect, out texture);
x_pos = range.X;
y_pos = range.Y;
vertices[vertex_count].X = x_pos; // Vertex
vertices[vertex_count++].Y = y_pos;
vertices[vertex_count].X = rect.Left; // Texcoord
vertices[vertex_count++].Y = rect.Top;
vertices[vertex_count].X = x_pos; // Vertex
vertices[vertex_count++].Y = y_pos + char_height;
vertices[vertex_count].X = rect.Left; // Texcoord
vertices[vertex_count++].Y = rect.Bottom;
font.GlyphData(c, out char_width, out char_height, out rect, out texture);
vertices[vertex_count].X = x_pos + char_width; // Vertex
vertices[vertex_count++].Y = y_pos + char_height;
vertices[vertex_count].X = rect.Right; // Texcoord
vertices[vertex_count++].Y = rect.Bottom;
vertices[vertex_count].X = x_pos + char_width; // Vertex
vertices[vertex_count++].Y = y_pos;
vertices[vertex_count].X = rect.Right; // Texcoord
vertices[vertex_count++].Y = rect.Top;
vertices[vertex_count].X = x_pos; // Vertex
vertices[vertex_count++].Y = y_pos;
vertices[vertex_count].X = rect.Left; // Texcoord
vertices[vertex_count++].Y = rect.Top;
vertices[vertex_count].X = x_pos; // Vertex
vertices[vertex_count++].Y = y_pos + char_height;
vertices[vertex_count].X = rect.Left; // Texcoord
vertices[vertex_count++].Y = rect.Bottom;
indices[index_count++] = (ushort)(vertex_count - 8);
indices[index_count++] = (ushort)(vertex_count - 6);
indices[index_count++] = (ushort)(vertex_count - 4);
vertices[vertex_count].X = x_pos + char_width; // Vertex
vertices[vertex_count++].Y = y_pos + char_height;
vertices[vertex_count].X = rect.Right; // Texcoord
vertices[vertex_count++].Y = rect.Bottom;
vertices[vertex_count].X = x_pos + char_width; // Vertex
vertices[vertex_count++].Y = y_pos;
vertices[vertex_count].X = rect.Right; // Texcoord
vertices[vertex_count++].Y = rect.Top;
indices[index_count++] = (ushort)(vertex_count - 4);
indices[index_count++] = (ushort)(vertex_count - 2);
indices[index_count++] = (ushort)(vertex_count - 8);
indices[index_count++] = (ushort)(vertex_count - 8);
indices[index_count++] = (ushort)(vertex_count - 6);
indices[index_count++] = (ushort)(vertex_count - 4);
indices[index_count++] = (ushort)(vertex_count - 4);
indices[index_count++] = (ushort)(vertex_count - 2);
indices[index_count++] = (ushort)(vertex_count - 8);
font.MeasureString(text.Substring(i, 1), out measured_width, out measured_height, false);
x_pos += measured_width;
}
else if (c == '\n')
{
//x_pos = layoutRect.Left;
x_pos = 0;
y_pos += font.Height;
}
++i;
}
}