/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="r">The r.</param>
/// <param name="g">The g.</param>
/// <param name="b">The b.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, int x, int y, float r, float g, float b, string faceName, float fontSize, string text)
{
// Get the font size in pixels.
var fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = (from fbe in fontBitmapEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& String.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0
&& fbe.Height == fontHeight
select fbe).ToList();
// Get the FBE or null.
var fontBitmapEntry = result.FirstOrDefault();
// If we don't have the FBE, we must create it.
if (fontBitmapEntry == null)
fontBitmapEntry = CreateFontBitmapEntry(gl, faceName, fontHeight);
double width = gl.RenderContextProvider.Width;
double height = gl.RenderContextProvider.Height;
// Create the appropriate projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PushMatrix();
gl.LoadIdentity();
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
gl.Ortho(0, width, 0, height, -1, 1);
// Create the appropriate modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.PushMatrix();
gl.LoadIdentity();
gl.Color(r, g, b);
gl.RasterPos(x, y);
gl.PushAttrib(OpenGL.GL_LIST_BIT | OpenGL.GL_CURRENT_BIT |
OpenGL.GL_ENABLE_BIT | OpenGL.GL_TRANSFORM_BIT);
gl.Color(r, g, b);
gl.Disable(OpenGL.GL_LIGHTING);
gl.Disable(OpenGL.GL_TEXTURE_2D);
gl.Disable(OpenGL.GL_DEPTH_TEST);
gl.RasterPos(x, y);
// Set the list base.
gl.ListBase(fontBitmapEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte) c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
// Reset the list bit.
gl.PopAttrib();
// Pop the modelview.
gl.PopMatrix();
// back to the projection and pop it, then back to the model view.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PopMatrix();
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="deviation">The deviation.</param>
/// <param name="extrusion">The extrusion.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, string faceName, float fontSize,
float deviation, float extrusion, string text)
{
// Get the font size in pixels.
var fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = (from fbe in fontOutlineEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle &&
fbe.HRC == gl.RenderContextProvider.RenderContextHandle &&
String.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0 &&
fbe.Height == fontHeight &&
fbe.Deviation == deviation &&
fbe.Extrusion == extrusion
select fbe).ToList();
// Get the FBE or null.
var fontOutlineEntry = result.FirstOrDefault();
// If we don't have the FBE, we must create it.
if (fontOutlineEntry == null)
{
fontOutlineEntry = CreateFontOutlineEntry(gl, faceName, fontHeight, deviation, extrusion, FontOutlineFormat.Polygons);
}
// Set the list base.
gl.ListBase(fontOutlineEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte)c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="deviation">The deviation.</param>
/// <param name="extrusion">The extrusion.</param>
/// <param name="text">The text.</param>
/// <param name="glyphMetrics"> </param>
/// <returns>True if the text was rendered, false if the underlying font could not be created.</returns>
public bool DrawText(OpenGL gl, string faceName, float deviation, float extrusion, string text, out GLYPHMETRICSFLOAT[] glyphMetrics)
{
// Do we have a font bitmap entry for this OpenGL instance and face name?
// If not, create one.
const float tolerance = 0.01f;
var fontOutlineEntry = (from fbe in fontOutlineEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle &&
fbe.HRC == gl.RenderContextProvider.RenderContextHandle &&
string.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0 &&
Math.Abs(fbe.Deviation - deviation) < tolerance &&
Math.Abs(fbe.Extrusion - extrusion) < tolerance
select fbe).FirstOrDefault()
?? CreateFontOutlineEntry(gl, faceName, deviation, extrusion,
FontOutlineFormat.Polygons);
// If we failed to create the outline entry we'll need to bail.
if (fontOutlineEntry == null)
{
glyphMetrics = null;
return(false);
}
// Set the list base.
gl.ListBase(fontOutlineEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte)c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
// Return the glyph metrics used.
glyphMetrics = fontOutlineEntry.GlyphMetrics;
return(true);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, string faceName, float fontSize,
float deviation, float extrusion, string text)
{
// Get the font size in pixels.
int fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = from fbe in fontOutlineEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& string.Compare(fbe.FaceName, faceName, true) == 0
&& fbe.Height == fontHeight
&& fbe.Deviation == deviation
&& fbe.Extrusion == extrusion
select fbe;
// Get the FBE or null.
var fontOutlineEntry = result == null || result.Count() == 0 ? null : result.First();
// If we don't have the FBE, we must create it.
if (fontOutlineEntry == null)
fontOutlineEntry = CreateFontOutlineEntry(gl, faceName, fontHeight, deviation, extrusion, FontOutlineFormat.Polygons);
// Set the list base.
gl.ListBase(fontOutlineEntry.ListBase);
// Create an array of lists for the glyphs.
List<byte> lists = new List<byte>();
foreach(char c in text)
lists.Add((byte)c);
// Call the lists for the string.
gl.CallLists(lists.Count, lists.ToArray());
gl.Flush();
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="deviation">The deviation.</param>
/// <param name="extrusion">The extrusion.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, string faceName, float fontSize,
float deviation, float extrusion, string text)
{
// Get the font size in pixels.
var fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = (from fbe in fontOutlineEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& String.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0
&& fbe.Height == fontHeight
&& fbe.Deviation == deviation
&& fbe.Extrusion == extrusion
select fbe).ToList();
// Get the FBE or null.
var fontOutlineEntry = result.FirstOrDefault();
// If we don't have the FBE, we must create it.
if (fontOutlineEntry == null)
fontOutlineEntry = CreateFontOutlineEntry(gl, faceName, fontHeight, deviation, extrusion, FontOutlineFormat.Polygons);
// Set the list base.
gl.ListBase(fontOutlineEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte) c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="r">The r.</param>
/// <param name="g">The g.</param>
/// <param name="b">The b.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
/// <param name="resWidth">Horizontal resolution.</param>
/// <param name="resHeight">Vertical resolution.</param>
public void DrawText(OpenGL gl, int x, int y, float r, float g, float b, string faceName, float fontSize, string text,
double resWidth, double resHeight)
{
// Get the font size in pixels.
var fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = (from fbe in fontBitmapEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle &&
fbe.HRC == gl.RenderContextProvider.RenderContextHandle &&
String.Compare(fbe.FaceName, faceName, StringComparison.OrdinalIgnoreCase) == 0 &&
fbe.Height == fontHeight
select fbe).ToList();
// Get the FBE or null.
var fontBitmapEntry = result.FirstOrDefault();
// If we don't have the FBE, we must create it.
if (fontBitmapEntry == null)
{
fontBitmapEntry = CreateFontBitmapEntry(gl, faceName, fontHeight);
}
// Create the appropriate projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PushMatrix();
gl.LoadIdentity();
gl.Ortho(0, resWidth, 0, resHeight, -1, 1);
// Create the appropriate modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.PushMatrix();
gl.LoadIdentity();
gl.Color(r, g, b);
gl.RasterPos(x, y);
gl.PushAttrib(OpenGL.GL_LIST_BIT | OpenGL.GL_CURRENT_BIT |
OpenGL.GL_ENABLE_BIT | OpenGL.GL_TRANSFORM_BIT);
gl.Color(r, g, b);
gl.Disable(OpenGL.GL_LIGHTING);
gl.Disable(OpenGL.GL_TEXTURE_2D);
gl.Disable(OpenGL.GL_DEPTH_TEST);
gl.RasterPos(x, y);
// Set the list base.
gl.ListBase(fontBitmapEntry.ListBase);
// Create an array of lists for the glyphs.
var lists = text.Select(c => (byte)c).ToArray();
// Call the lists for the string.
gl.CallLists(lists.Length, lists);
gl.Flush();
// Reset the list bit.
gl.PopAttrib();
// Pop the modelview.
gl.PopMatrix();
// back to the projection and pop it, then back to the model view.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PopMatrix();
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="gl">The gl.</param>
/// <param name="x">The x.</param>
/// <param name="y">The y.</param>
/// <param name="r">The r.</param>
/// <param name="g">The g.</param>
/// <param name="b">The b.</param>
/// <param name="faceName">Name of the face.</param>
/// <param name="fontSize">Size of the font.</param>
/// <param name="text">The text.</param>
public void DrawText(OpenGL gl, int x, int y, float r, float g, float b, string faceName, float fontSize, string text)
{
// Get the font size in pixels.
int fontHeight = (int)(fontSize * (16.0f / 12.0f));
// Do we have a font bitmap entry for this OpenGL instance and face name?
var result = from fbe in fontBitmapEntries
where fbe.HDC == gl.RenderContextProvider.DeviceContextHandle
&& fbe.HRC == gl.RenderContextProvider.RenderContextHandle
&& string.Compare(fbe.FaceName, faceName, true) == 0
&& fbe.Height == fontHeight
select fbe;
// Get the FBE or null.
FontBitmapEntry fontBitmapEntry = result == null || result.Count() == 0 ? null : result.First();
// If we don't have the FBE, we must create it.
if (fontBitmapEntry == null)
fontBitmapEntry = CreateFontBitmapEntry(gl, faceName, fontHeight);
double width = gl.RenderContextProvider.Width;
double height = gl.RenderContextProvider.Height;
double aspect_ratio = width / height;
// Create the appropriate projection matrix.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PushMatrix();
gl.LoadIdentity();
int[] viewport = new int[4];
gl.GetInteger(OpenGL.GL_VIEWPORT, viewport);
//gl.Ortho2D(viewport[0], viewport[2], viewport[1], viewport[3]);
gl.Ortho(0, width, 0, height, -1, 1);
// Create the appropriate modelview matrix.
gl.MatrixMode(OpenGL.GL_MODELVIEW);
gl.PushMatrix();
gl.LoadIdentity();
//gl.Translate(0, 0, -5);
//gl.RasterPos(x, y);
gl.Color(r, g, b);
gl.RasterPos(x, y);
gl.PushAttrib(OpenGL.GL_LIST_BIT | OpenGL.GL_CURRENT_BIT |
OpenGL.GL_ENABLE_BIT | OpenGL.GL_TRANSFORM_BIT);
gl.Color(r, g, b);
gl.Disable(OpenGL.GL_LIGHTING);
gl.Disable(OpenGL.GL_TEXTURE_2D);
gl.Disable(OpenGL.GL_DEPTH_TEST);
gl.RasterPos(x, y);
/** gl.Enable(OpenGL.GL_BLEND);
gl.BlendFunc(OpenGL.GL_SRC_ALPHA, OpenGL.GL_ONE_MINUS_SRC_ALPHA); */
// Set the list base.
gl.ListBase(fontBitmapEntry.ListBase);
// Create an array of lists for the glyphs.
List<byte> lists = new List<byte>();
foreach(char c in text)
lists.Add((byte)c);
// Call the lists for the string.
gl.CallLists(lists.Count, lists.ToArray());
gl.Flush();
// Reset the list bit.
gl.PopAttrib();
// Pop the modelview.
gl.PopMatrix();
// back to the projection and pop it, then back to the model view.
gl.MatrixMode(OpenGL.GL_PROJECTION);
gl.PopMatrix();
gl.MatrixMode(OpenGL.GL_MODELVIEW);
}
