/*
* Obtains the dimensions of text rendered at size with Cairo's
* Toy text API. This is solely useful when trying to get text
* metrics without the assistance of Pango.CairoHelper.
*/
public static void GetToyTextMetrics(int size, string text,
out int width, out int height)
{
width = height = 0;
if (text == null)
{
return;
}
// Create a Cairo.Context expressly for finding out the
// size of given text, since we're not (and shouldn't
// be) passed a Cairo.Context.
using (Cairo.ImageSurface s = new Cairo.ImageSurface(Cairo.Format.A1,
300, 300))
{
using (Cairo.Context cr = new Cairo.Context(s)) {
// XXX: ugh, Cairo's toy text api
// doesn't do any text layout
string[] lines = text.Split('\n');
foreach (string line in lines)
{
cr.SetFontSize(size);
Cairo.TextExtents te = cr.TextExtents(line);
width = Math.Max((int)(te.Width + te.XBearing), width);
height += (int)te.Height;
}
height += LEADING * (lines.Length - 1);
}
}
}
/*
* Paints text to the surface with Cairo's Toy text API. Toy
* text API. This is solely useful when trying to draw
* text without the assistance of Pango.CairoHelper.
*/
public static void PaintToyText(Cairo.Context cr, int size,
string text, int x, int y,
bool centered, int hint_width)
{
if (text == null)
{
return;
}
cr.SetFontSize(size);
// Do manual text layout since Cairo's toy text api is
// just that, a toy.
string[] lines = text.Split('\n');
foreach (string line in lines)
{
// Cairo's text origin is at the bottom left
// corner of the text rect
Cairo.TextExtents te = cr.TextExtents(line);
int line_x = centered
? (int)(x + (hint_width / 2) - ((te.Width + te.XBearing) / 2))
: x;
// Center the text
cr.MoveTo(line_x, y - (te.Height + te.YBearing) + te.Height);
cr.ShowText(line);
y += (int)te.Height + LEADING;
}
}
public TagBlock(Cairo.Context cr, string tag)
{
bool isKnownOn = tag.StartsWith("known_on_");
bool isNotOn = tag.StartsWith("not_on_");
if (isKnownOn || isNotOn)
{
this.IsSiteTag = true;
this.Text = tag.Replace("known_on_", "").Replace("not_on_", "");
this.Color = isKnownOn ? new Color(.7, 1, .7) : new Color(1, .7, .7);
}
else
{
this.IsSiteTag = false;
this.Text = tag;
var tagDetails = BooruApp.BooruApplication.Database.GetTag(tag);
if (tagDetails == null)
{
this.Color = new Color(1, 1, 1);
}
else
{
this.Color = TagDetails.GetTagTypeColor(tagDetails.Type);
}
}
Cairo.TextExtents extents = cr.TextExtents(this.Text);
this.Position = new PointD(0.0, 0.0);
this.Width = extents.XAdvance;
this.Height = cr.FontExtents.Height;
}
public WarpCurl(TextExtents text, Rectangle rect)
{
if (text == null) throw new ArgumentNullException("text");
if (rect == null) throw new ArgumentNullException("rect");
_rect = rect;
_extents = text;
}
/// <summary>
/// Draw the specified surface.
/// </summary>
/// <param name="surface">Surface.</param>
/// <param name="x">The x coordinate.</param>
/// <param name="y">The y coordinate.</param>
public override void Draw(Cairo.Context surface, int x, int y)
{
X = x;
Y = y;
RetrieveData();
FindSmallestValue(_graphData);
FindMaxValue(_graphData);
x_scale_ratio = DrawAssembly.ContentWidth / _totalDataPoints;
y_scale_ratio = DrawAssembly.FrameAreaHeight / (_maxValue - _minValue);
surface.LineWidth = GraphLineWidth;
surface.SetSourceRGBA(R, G, B, Alpha);
//Console.WriteLine ("the smallest value is " + smallestValue);
for (int i = 0; i < _totalDataPoints - 1; i++)
{
int k = i + 1;
_p1 = new PointD(X - DrawAssembly.FrameAreaMarginLEFT + (i * (x_scale_ratio * 0.5)), Y + DrawAssembly.FrameAreaMarginTOP - (_graphData [i] - _minValue) * (y_scale_ratio * 0.5));
_p2 = new PointD(X - DrawAssembly.FrameAreaMarginLEFT + (k * (x_scale_ratio * 0.5)), Y + DrawAssembly.FrameAreaMarginTOP - (_graphData [k] - _minValue) * (y_scale_ratio * 0.5));
surface.MoveTo(_p1);
surface.LineTo(_p2);
p1Xcoordinates [i] = _p1.X;
p1Ycoordinates [i] = _p1.Y;
}
DrawGraphDots(surface);
DrawYScale(surface);
surface.Stroke();
string widgetText = DataStreamId;
surface.SetFontSize(15);
Cairo.TextExtents text = surface.TextExtents(widgetText);
surface.SetSourceRGBA(R, G, B, Alpha);
surface.MoveTo(DrawAssembly.FrameAreaMarginLEFT, Y + (text.Height * Id));
surface.ShowText(widgetText);
/*
* surface.SetSourceRGBA (1, 1, 1, 0.5);
* surface.Rectangle (DrawAssembly.FrameAreaMarginLEFT, 0, DrawAssembly.FrameAreaWidth, DrawAssembly.FrameAreaHeight);
* surface.Stroke ();
*/
}
internal static extern void cairo_text_extents (IntPtr cr, string utf8, out TextExtents extents);
internal static extern void cairo_scaled_font_text_extents (IntPtr scaled_font, string utf8, out TextExtents extents);
internal static extern void cairo_scaled_font_glyph_extents (IntPtr scaled_font, IntPtr glyphs, int num_glyphs, out TextExtents extents);
internal static extern void cairo_glyph_extents (IntPtr cr, IntPtr glyphs, int num_glyphs, out TextExtents extents);
internal static extern void cairo_text_extents(IntPtr cr, string utf8, out TextExtents extents);
internal static extern void cairo_scaled_font_glyph_extents(IntPtr scaled_font, IntPtr glyphs, int num_glyphs, out TextExtents extents);
/// <summary>
/// Update Current Column, line and TextCursorPos
/// from mouseLocalPos
/// </summary>
void computeTextCursor(Context gr)
{
TextExtents te;
double cPos = 0f;
CurrentLine = (int)(mouseLocalPos.Y / fe.Height);
//fix cu
if (CurrentLine >= lines.Count)
CurrentLine = lines.Count - 1;
for (int i = 0; i < lines[CurrentLine].Length; i++)
{
string c = lines [CurrentLine].Substring (i, 1);
if (c == "\t")
c = new string (' ', Interface.TabSize);
te = gr.TextExtents(c);
double halfWidth = te.XAdvance / 2;
if (mouseLocalPos.X <= cPos + halfWidth)
{
CurrentColumn = i;
textCursorPos = cPos;
mouseLocalPos = -1;
return;
}
cPos += te.XAdvance;
}
CurrentColumn = lines[CurrentLine].Length;
textCursorPos = cPos;
//reset mouseLocalPos
mouseLocalPos = -1;
}
protected override int measureRawSize(LayoutingType lt)
{
if (lines == null)
lines = getLines;
using (ImageSurface img = new ImageSurface (Format.Argb32, 10, 10)) {
using (Context gr = new Context (img)) {
//Cairo.FontFace cf = gr.GetContextFontFace ();
gr.SelectFontFace (Font.Name, Font.Slant, Font.Wheight);
gr.SetFontSize (Font.Size);
fe = gr.FontExtents;
te = new TextExtents();
if (lt == LayoutingType.Height){
int lc = lines.Count;
//ensure minimal height = text line height
if (lc == 0)
lc = 1;
return (int)Math.Ceiling(fe.Height * lc) + Margin * 2;
}
foreach (string s in lines) {
string l = s.Replace("\t", new String (' ', Interface.TabSize));
TextExtents tmp = gr.TextExtents (l);
if (tmp.XAdvance > te.XAdvance)
te = tmp;
}
return (int)Math.Ceiling (te.XAdvance) + Margin * 2;
}
}
}
internal static extern void cairo_text_extents(IntPtr cr, byte[] utf8, out TextExtents extents);
private void UpdatePixbuf()
{
if (base.Image == null)
{
return;
}
if (notifyCount > 0)
{
if (base.Image.ParentWindow == null)
{
return;
}
Gdk.Window win = Image.ParentWindow;
Pixmap image;
image = new Gdk.Pixmap(win, 18, 18);
if (image == null)
{
return;
}
int wide, high;
image.GetSize(out wide, out high);
Cairo.Context cc = CairoHelper.CreateCairoDrawable(image);
//Cairo.Context cc = new Cairo.Context(surface);
cc.Save();
// cc.PaintWithAlpha(1.0);
cc.Rectangle(0, 0, wide, high);
cc.SetSourceRGBA(1.0, 1.0, 1.0, 1.0);
//cc.FillPreserve();
cc.Fill();
cc.Restore();
cc.Stroke();
cc.Save();
// cc.LineWidth = 0.01;
cc.Arc(((double)wide) / 2.0, ((double)high) / 2.0, (((double)wide) / 2.0), 0.0, 2.0 * 3.14);
if (notifyCount < 10) // yellow
{
cc.SetSourceRGBA(0.99, 0.91, 0.31, 1.0);
}
else if (notifyCount < 25) // orange
{
cc.SetSourceRGBA(0.99, 0.69, 0.24, 1.0);
}
else // red
{
cc.SetSourceRGBA(0.94, 0.16, 0.16, 1.0);
}
// cc.FillPreserve();
cc.Fill();
cc.Restore();
cc.Stroke();
string badgeString = String.Format("{0}", notifyCount);
cc.Save();
cc.SetSourceRGBA(0.0, 0.0, 0.0, 1.0);
cc.FontFace("sans", FontSlant.Normal, FontWeight.Bold);
cc.FontSize = 12;
Cairo.TextExtents extents = cc.TextExtents(badgeString);
double xpos, ypos;
xpos = ((double)wide) / 2.0 - extents.Width / 2.0;
ypos = (((double)high) / 2.0) + (extents.Height / 2.0) - 0.5;
cc.MoveTo(xpos, ypos);
cc.ShowText(badgeString);
cc.Restore();
cc.Stroke();
Pixbuf dp = Gdk.Pixbuf.FromDrawable(image, image.Colormap, 0, 0, 0, 0, 18, 18);
// Create the composite image
Colorspace colorspace = originalPixbuf.Colorspace;
bool hasAlpha = originalPixbuf.HasAlpha;
int bitsPerSample = originalPixbuf.BitsPerSample;
newPixbuf = new Pixbuf(colorspace,
true,
bitsPerSample,
originalPixbuf.Width,
originalPixbuf.Height);
originalPixbuf.CopyArea(0, 0, originalPixbuf.Width, originalPixbuf.Height, newPixbuf, 0, 0);
dp.CopyArea(0, 0, dp.Width, dp.Height, newPixbuf, originalPixbuf.Width - dp.Width, 0);
((Gtk.Image)base.Image).Pixbuf = newPixbuf;
}
else
{
if (((Gtk.Image)base.Image).Pixbuf != originalPixbuf)
{
((Gtk.Image)base.Image).Pixbuf = originalPixbuf;
}
}
imageNeedsUpdating = false;
}
public TextExtents TextExtents (string utf8)
{
TextExtents extents = new TextExtents ();
CairoAPI.cairo_text_extents (state, utf8, ref extents);
return extents;
}
internal static extern void cairo_glyph_extents(IntPtr cr, IntPtr glyphs, int num_glyphs, out TextExtents extents);
internal static extern void cairo_text_extents (IntPtr cr, byte[] utf8, out TextExtents extents);
internal static extern void cairo_scaled_font_text_extents(IntPtr scaled_font, string utf8, out TextExtents extents);
internal static extern void cairo_scaled_font_extents (IntPtr scaled_font, TextExtents extents);
/** FAST */
public static bool CheckTextExtents(Context cr, TextExtents te, double x, double y)
{
bool retval = false;
cr.Save ();
PointD pt = cr.CurrentPoint;
cr.NewPath ();
cr.Rectangle (pt.X, pt.Y, te.Width, te.Height);
cr.IdentityMatrix ();
retval = cr.InFill (x, y);
if (ShowTextExtents) {
cr.Operator = Operator.Over;
cr.Color = new Color (1,0.5,1,0.5);
cr.LineWidth = 0.5;
cr.Stroke ();
}
cr.Restore ();
cr.MoveTo (pt.X, pt.Y);
return retval;
}
internal static extern void cairo_scaled_font_extents(IntPtr scaled_font, TextExtents extents);
