public void DrawBar(Cairo.Context cr, PlotColor color, int x, int y, int width, int height, bool is_focused)
{
// Draw the fill
cr.Rectangle(x, y, width, height);
Cairo.Color fill = colors[(int)color];
fill.A = 0.6;
//cr.Color = fill;
cr.SetSourceRGBA(fill.R, fill.G, fill.B, fill.A);
cr.Fill();
// Stroke just the top, left and right sides
cr.MoveTo(x - DEFUZZ, y + height - DEFUZZ);
cr.RelLineTo(0, -height);
cr.RelLineTo(width, 0);
cr.RelLineTo(0, height);
// decrease saturation by 40%
//cr.Color = CairoHelper.Darken (colors[(int)color], 0.4f);
cr.SetSourceRGBA(CairoHelper.Darken(colors[(int)color], 0.4f).R, CairoHelper.Darken(colors[(int)color], 0.4f).G, CairoHelper.Darken(colors[(int)color], 0.4f).B, CairoHelper.Darken(colors[(int)color], 0.4f).A);
cr.LineWidth = 1.0f;
cr.Stroke();
if (is_focused)
{
DrawFocusRect(cr, x - FOCUS_BORDER, y - FOCUS_BORDER,
width + (FOCUS_BORDER * 2), height + FOCUS_BORDER);
}
}
void RenderLineNumberIcon(Widget widget, Cairo.Context cr, Gdk.Rectangle cell_area, int markupHeight, int yOffset)
{
if (!IsStackFrame)
{
return;
}
cr.Save();
#if CENTER_ROUNDED_RECTANGLE
cr.Translate(cell_area.X + Padding, (cell_area.Y + (cell_area.Height - RoundedRectangleHeight) / 2.0));
#else
cr.Translate(cell_area.X + Padding, cell_area.Y + Padding + yOffset);
#endif
cr.Antialias = Cairo.Antialias.Subpixel;
cr.RoundedRectangle(0.0, 0.0, RoundedRectangleWidth, RoundedRectangleHeight, RoundedRectangleRadius);
cr.Clip();
if (IsUserCode)
{
cr.SetSourceRGBA(0.90, 0.60, 0.87, 1.0); // 230, 152, 223
}
else
{
cr.SetSourceRGBA(0.77, 0.77, 0.77, 1.0); // 197, 197, 197
}
cr.RoundedRectangle(0.0, 0.0, RoundedRectangleWidth, RoundedRectangleHeight, RoundedRectangleRadius);
cr.Fill();
cr.SetSourceRGBA(0.0, 0.0, 0.0, 0.11);
cr.RoundedRectangle(0.0, 0.0, RoundedRectangleWidth, RoundedRectangleHeight, RoundedRectangleRadius);
cr.LineWidth = 2;
cr.Stroke();
using (var layout = PangoUtil.CreateLayout(widget, LineNumber != -1 ? LineNumber.ToString() : "???")) {
layout.Alignment = Pango.Alignment.Left;
layout.FontDescription = LineNumberFont;
int width, height;
layout.GetPixelSize(out width, out height);
double y_offset = (RoundedRectangleHeight - height) / 2.0;
double x_offset = (RoundedRectangleWidth - width) / 2.0;
// render the text shadow
cr.Save();
cr.SetSourceRGBA(0.0, 0.0, 0.0, 0.34);
cr.Translate(x_offset, y_offset + 1);
cr.ShowLayout(layout);
cr.Restore();
cr.SetSourceRGBA(1.0, 1.0, 1.0, 1.0);
cr.Translate(x_offset, y_offset);
cr.ShowLayout(layout);
}
cr.Restore();
}
protected virtual void PaintFill()
{
double r, g, b;
r = (double)fillColor.Red / ushort.MaxValue;
g = (double)fillColor.Green / ushort.MaxValue;
b = (double)fillColor.Blue / ushort.MaxValue;
cairo.Save();
GetFrame(cairo);
if (!drawGradient)
{
cairo.SetSourceRGBA(r, g, b, fillAlpha);
}
else
{
using (var grad = CreateGradient()) {
cairo.SetSource(grad);
}
}
cairo.FillPreserve();
cairo.Restore();
}
public void DrawEventTag(Cairo.Context cr, PlotColor color,
int x, int y, Orientation orientation)
{
cr.MoveTo(x + DEFUZZ, y);
if (orientation == Orientation.Vertical)
{
cr.RelLineTo(-1 * EVENT_TAG_HALF_WIDTH, -1 * EVENT_TAG_SEGMENT_HEIGHT);
cr.RelLineTo(0, -2 * EVENT_TAG_SEGMENT_HEIGHT);
cr.RelLineTo(EVENT_TAG_HALF_WIDTH * 2, 0);
cr.RelLineTo(0, 2 * EVENT_TAG_SEGMENT_HEIGHT);
}
else
{
cr.RelLineTo(EVENT_TAG_SEGMENT_HEIGHT, -1 * EVENT_TAG_HALF_WIDTH);
cr.RelLineTo(EVENT_TAG_SEGMENT_HEIGHT * 2, 0);
cr.RelLineTo(0, EVENT_TAG_HALF_WIDTH * 2);
cr.RelLineTo(-2 * EVENT_TAG_SEGMENT_HEIGHT, 0);
}
cr.ClosePath();
//cr.Color = CairoHelper.GetCairoColor (gtk_style.Base (state));
cr.SetSourceRGBA(CairoHelper.GetCairoColor(gtk_style.Base(state)).R, CairoHelper.GetCairoColor(gtk_style.Base(state)).G, CairoHelper.GetCairoColor(gtk_style.Base(state)).B, CairoHelper.GetCairoColor(gtk_style.Base(state)).A);
cr.FillPreserve();
cr.LineWidth = 1.0f;
//cr.Color = colors[(int)color];
cr.SetSourceRGBA(colors[(int)color].R, colors[(int)color].G, colors[(int)color].B, colors[(int)color].A);
cr.Stroke();
}
public void DrawSelectionRectangle(Cairo.Context cr, int x, int y, int width, int height)
{
cr.Rectangle(x + DEFUZZ, y + DEFUZZ,
width, height);
//cr.Color = CairoHelper.GetCairoColorWithAlpha (gtk_style.Foreground (state), 0.1f);
cr.SetSourceRGBA(CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.1f).R, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.1f).G, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.1f).B, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.1f).A);
cr.FillPreserve();
//cr.Color = CairoHelper.GetCairoColorWithAlpha (gtk_style.Foreground (state), 0.7f);
cr.SetSourceRGBA(CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.7f).R, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.7f).G, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.7f).B, CairoHelper.GetCairoColorWithAlpha(gtk_style.Foreground(state), 0.7f).A);
cr.LineWidth = 1.0f;
cr.Stroke();
}
public void DrawSelectedPoint(Cairo.Context cr, PlotColor color,
PointShape type, int x, int y)
{
DrawPointGlyph(cr, type, x, y, POINT_SIZE);
//cr.Color = CairoHelper.GetCairoColor (gtk_style.Base (state));
cr.SetSourceRGBA(CairoHelper.GetCairoColor(gtk_style.Base(state)).R, CairoHelper.GetCairoColor(gtk_style.Base(state)).G, CairoHelper.GetCairoColor(gtk_style.Base(state)).B, CairoHelper.GetCairoColor(gtk_style.Base(state)).A);
cr.FillPreserve();
//cr.Color = colors[(int)color];
cr.SetSourceRGBA(colors[(int)color].R, colors[(int)color].G, colors[(int)color].B, colors[(int)color].A);
cr.LineWidth = 2.0f;
cr.Stroke();
}
public void DrawGridLine(Cairo.Context cr, int x1, int y1, int x2, int y2)
{
if (x1 == x2)
{
// vertical line
cr.MoveTo(x1 + DEFUZZ, y1);
cr.LineTo(x2 + DEFUZZ, y2);
}
else if (y1 == y2)
{
// horizontal line
cr.MoveTo(x1, y1 + DEFUZZ);
cr.LineTo(x2, y2 + DEFUZZ);
}
else
{
cr.MoveTo(x1 + DEFUZZ, y1 + DEFUZZ);
cr.LineTo(x2 + DEFUZZ, y2 + DEFUZZ);
}
cr.SetSourceRGBA(CairoHelper.GetCairoColor(gtk_style.Background(state)).R, CairoHelper.GetCairoColor(gtk_style.Background(state)).G, CairoHelper.GetCairoColor(gtk_style.Background(state)).B, CairoHelper.GetCairoColor(gtk_style.Background(state)).A);
//cr.Color = CairoHelper.GetCairoColor (gtk_style.Background (state));
cr.LineWidth = 1.0f;
cr.Stroke();
}
public void DrawAxisTick(Cairo.Context cr, int x, int y, AxisLocation loc)
{
//cr.Color = CairoHelper.GetCairoColor (gtk_style.Foreground (state));
cr.SetSourceRGBA(CairoHelper.GetCairoColor(gtk_style.Foreground(state)).R, CairoHelper.GetCairoColor(gtk_style.Foreground(state)).G, CairoHelper.GetCairoColor(gtk_style.Foreground(state)).B, CairoHelper.GetCairoColor(gtk_style.Foreground(state)).A);
cr.LineWidth = 1.0f;
switch (loc)
{
case AxisLocation.Left:
cr.MoveTo(x, y + DEFUZZ);
cr.LineTo(x + TICK_SIZE, y + DEFUZZ);
break;
case AxisLocation.Right:
cr.MoveTo(x, y + DEFUZZ);
cr.LineTo(x + TICK_SIZE, y + DEFUZZ);
break;
case AxisLocation.Top:
cr.MoveTo(x + DEFUZZ, y);
cr.LineTo(x + DEFUZZ, y - TICK_SIZE);
break;
case AxisLocation.Bottom:
cr.MoveTo(x + DEFUZZ, y);
cr.LineTo(x + DEFUZZ, y + TICK_SIZE);
break;
}
cr.Stroke();
}
public static void Ellipse(Cairo.Context context, PointF p, double r, Color color, bool filled, double width = 1.0)
{
context.Save();
context.Translate(p.X, p.Y);
if (!filled)
{
context.LineWidth = width;
context.LineCap = Cairo.LineCap.Butt;
context.LineJoin = Cairo.LineJoin.Bevel;
}
var c = color.ToCairo();
context.SetSourceRGBA(c.R, c.G, c.B, c.A);
context.Arc(0, 0, r, 0, Math.PI * 2);
if (filled)
{
context.Fill();
}
else
{
context.Stroke();
}
context.Restore();
}
public static void Arc(Cairo.Context context, PointF p, double r, double a1, double a2, bool clockwise, Color color, bool filled, double width = 1.0)
{
context.Save();
context.Translate(p.X, p.Y);
if (!filled)
{
context.LineWidth = width;
context.LineCap = Cairo.LineCap.Butt;
context.LineJoin = Cairo.LineJoin.Bevel;
}
var c = color.ToCairo();
context.SetSourceRGBA(c.R, c.G, c.B, c.A);
if (clockwise)
{
context.Arc(0, 0, r, a1, a2);
}
else
{
context.ArcNegative(0, 0, r, a1, a2);
}
if (filled)
{
context.Fill();
}
else
{
context.Stroke();
}
context.Restore();
}
protected virtual void DrawFocus(Cairo.Context graphics)
{
double uw = graphics.LineWidth;
graphics.LineWidth *= 6;
int fw = 12;
int dw = 0;
double w = Allocation.Width;
double h = Allocation.Height;
graphics.SetSourceRGBA(0.6, 0.6, 0.6, 0.5);
graphics.MoveTo(-uw * dw, uw * fw);
graphics.LineTo(-uw * dw, -uw * dw);
graphics.LineTo(uw * fw, -uw * dw);
graphics.Stroke();
graphics.MoveTo(w - uw * fw, -uw * dw);
graphics.LineTo(w + uw * dw, -uw * dw);
graphics.LineTo(w + uw * dw, uw * fw);
graphics.Stroke();
graphics.MoveTo(w + uw * dw, h - uw * fw);
graphics.LineTo(w + uw * dw, h + uw * dw);
graphics.LineTo(w - uw * fw, h + uw * dw);
graphics.Stroke();
graphics.MoveTo(uw * fw, h + uw * dw);
graphics.LineTo(-uw * dw, h + uw * dw);
graphics.LineTo(-uw * dw, h - uw * fw);
graphics.Stroke();
}
public virtual void DrawAnnotation(Cairo.Context context, Cdn.AnnotationInfo info)
{
var uw = context.LineWidth;
var alloc = AnnotationAllocation(1 / uw, context);
alloc.Offset(-Allocation.X / uw, -Allocation.Y / uw);
context.Save();
context.Scale(context.LineWidth, context.LineWidth);
context.LineWidth = 1;
context.Rectangle(alloc.X, alloc.Y, alloc.Width, alloc.Height);
context.SetSourceRGBA(1, 1, 1, 0.75);
context.Fill();
context.Rectangle(alloc.X + 2, alloc.Y + 2, alloc.Width - 4, alloc.Height - 4);
context.SetSourceRGB(0.95, 0.95, 0.95);
context.SetDash(new double[] { 5, 5 }, 0);
context.Stroke();
Pango.Layout layout = Pango.CairoHelper.CreateLayout(context);
Pango.CairoHelper.UpdateLayout(context, layout);
layout.FontDescription = Settings.Font;
layout.SetText(info.Text.Trim());
context.MoveTo(alloc.X + 2, alloc.Y + 2);
context.SetSourceRGB(0.5, 0.5, 0.5);
Pango.CairoHelper.ShowLayout(context, layout);
context.Restore();
}
protected virtual void SetupBackground()
{
background.Clear();
Cairo.Context context = background.Create();
double lwidth = 1;
double hlwidth = lwidth * 0.5;
double margin = Margin;
//left curvature:
context.MoveTo(-hlwidth, -hlwidth);
context.CurveTo(margin * 0.33, -hlwidth,
margin * 0.5, Height * 0.4,
margin * 0.5, Height * 0.5);
context.CurveTo(margin * 0.5, Height * 0.6,
margin * 0.66, Height - hlwidth,
margin - hlwidth, Height - hlwidth);
//straight bottom:
context.LineTo(Width - margin - hlwidth, Height - hlwidth);
//right curvature:
context.CurveTo(Width - margin * 0.66, Height - hlwidth,
Width - margin * 0.5, Height * 0.6,
Width - margin * 0.5, Height * 0.5);
context.CurveTo(Width - margin * 0.5, Height * 0.4,
Width - margin * 0.33, -hlwidth,
Width - hlwidth, -hlwidth);
//straight top:
context.LineTo(-hlwidth, -hlwidth);
context.ClosePath();
context.LineWidth = lwidth;
context.SetSourceRGBA(1.0, 1.0, 1.0, 1.0);
context.StrokePreserve();
context.SetSourceRGBA(1.0, 1.0, 1.0, 0.10);
context.Fill();
((IDisposable)context.Target).Dispose();
((IDisposable)context).Dispose();
}
public void DrawLine(Cairo.Context cr, PlotColor color, int x1, int y1, int x2, int y2)
{
cr.MoveTo(x1 + DEFUZZ, y1 + DEFUZZ);
cr.LineTo(x2 + DEFUZZ, y2 + DEFUZZ);
//cr.Color = colors[(int)color];
cr.SetSourceRGBA(colors[(int)color].R, colors[(int)color].G, colors[(int)color].B, colors[(int)color].A);
cr.LineWidth = 1.0f;
cr.Stroke();
}
protected void paintTrail(Cairo.Context context, int x, int y)
{
context.Save();
context.SetSourceRGB(0, 1, 0);
context.Translate(x, y);
context.Rectangle(new Cairo.Rectangle(0, 0, fieldSize, fieldSize));
context.SetSourceRGBA(0, 1, 0, 0.3);
context.FillPreserve();
context.NewPath();
context.Restore();
}
private void SetColor(Cairo.Context graphics, double[] color)
{
if (color.Length == 3)
{
graphics.SetSourceRGB(color[0], color[1], color[2]);
}
else
{
graphics.SetSourceRGBA(color[0], color[1], color[2], color[3]);
}
}
protected void paintSquare(Cairo.Context context, int x, int y, bool fill)
{
context.Save();
context.SetSourceRGB(0, 0, 1);
context.Translate(x, y);
context.Rectangle(new Cairo.Rectangle(0, 0, fieldSize, fieldSize));
context.SetSourceRGBA(0, 0, 0, fill ? 0.5 : 0.3);
context.FillPreserve();
context.NewPath();
context.Restore();
}
public void RenderOverlay(string text)
{
Gdk.Window canvas = area.GdkWindow;
using (Cairo.Context context = Gdk.CairoHelper.Create(canvas)) {
context.SetSourceRGBA(1, 1, 0, 0.5);
context.Rectangle(new Cairo.Rectangle(0, 0, fieldSize * (width), fieldSize * (height)));
context.Paint();
context.SetSourceRGBA(1, 1, 1, 1);
Pango.Layout layout = Pango.CairoHelper.CreateLayout(context);
layout.Width = (int)(width * fieldSize * Pango.Scale.PangoScale);
layout.Alignment = Pango.Alignment.Center;
layout.Wrap = Pango.WrapMode.Word;
layout.FontDescription = Pango.FontDescription.FromString("sans-serif 30");
layout.SetText(text);
int layoutWidth, layoutHeight;
layout.GetPixelSize(out layoutWidth, out layoutHeight);
context.MoveTo(0, (height * fieldSize - layoutHeight) / 2);
Pango.CairoHelper.UpdateLayout(context, layout);
Pango.CairoHelper.ShowLayout(context, layout);
}
}
void OnDraw (object data)
{
Action<Cairo.Context> callback = (Action<Cairo.Context>) data;
using (var context = new Cairo.Context (surface.Surface)) {
context.Operator = Cairo.Operator.Source;
context.SetSourceRGBA (0, 0, 0, 0);
context.Paint ();
context.Operator = Cairo.Operator.Over;
context.Scale (Scale, Scale);
callback (context);
}
runningSignal.Set ();
}
/// <summary>
/// Draws the text.
/// </summary>
/// <param name="showCursor">Whether or not to show the mouse cursor in the drawing.</param>
/// <param name="useTextLayer">Whether or not to use the TextLayer (as opposed to the Userlayer).</param>
private void RedrawText(bool showCursor, bool useTextLayer)
{
Rectangle r = CurrentTextEngine.GetLayoutBounds();
r.Inflate(10 + OutlineWidth, 10 + OutlineWidth);
CurrentTextBounds = r;
Rectangle cursorBounds = Rectangle.Zero;
Cairo.ImageSurface surf;
if (!useTextLayer)
{
//Draw text on the current UserLayer's surface as finalized text.
surf = PintaCore.Workspace.ActiveDocument.CurrentUserLayer.Surface;
}
else
{
//Draw text on the current UserLayer's TextLayer's surface as re-editable text.
surf = PintaCore.Workspace.ActiveDocument.CurrentUserLayer.TextLayer.Surface;
ClearTextLayer();
}
using (var g = new Cairo.Context (surf)) {
g.Save ();
// Show selection if on text layer
if (useTextLayer) {
// Selected Text
Cairo.Color c = new Cairo.Color (0.7, 0.8, 0.9, 0.5);
foreach (Rectangle rect in CurrentTextEngine.SelectionRectangles)
g.FillRectangle (rect.ToCairoRectangle (), c);
}
g.AppendPath (PintaCore.Workspace.ActiveDocument.Selection.SelectionPath);
g.FillRule = Cairo.FillRule.EvenOdd;
g.Clip ();
g.MoveTo (new Cairo.PointD (CurrentTextEngine.Origin.X, CurrentTextEngine.Origin.Y));
g.SetSourceRGBA (PintaCore.Palette.PrimaryColor);
//Fill in background
if (BackgroundFill) {
using (var g2 = new Cairo.Context (surf)) {
g2.FillRectangle(CurrentTextEngine.GetLayoutBounds().ToCairoRectangle(), PintaCore.Palette.SecondaryColor);
}
}
// Draw the text
if (FillText)
Pango.CairoHelper.ShowLayout (g, CurrentTextEngine.Layout);
if (FillText && StrokeText) {
g.SetSourceRGBA (PintaCore.Palette.SecondaryColor);
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, CurrentTextEngine.Layout);
g.Stroke ();
} else if (StrokeText) {
g.SetSourceRGBA (PintaCore.Palette.PrimaryColor);
g.LineWidth = OutlineWidth;
Pango.CairoHelper.LayoutPath (g, CurrentTextEngine.Layout);
g.Stroke ();
}
if (showCursor) {
var loc = CurrentTextEngine.GetCursorLocation ();
g.Antialias = Cairo.Antialias.None;
g.DrawLine (new Cairo.PointD (loc.X, loc.Y), new Cairo.PointD (loc.X, loc.Y + loc.Height), new Cairo.Color (0, 0, 0, 1), 1);
cursorBounds = Rectangle.Inflate (loc, 2, 10);
}
g.Restore ();
if (useTextLayer && (is_editing || ctrlKey) && !CurrentTextEngine.IsEmpty())
{
//Draw the text edit rectangle.
g.Save();
g.Translate(.5, .5);
using (Cairo.Path p = g.CreateRectanglePath(new Cairo.Rectangle(CurrentTextBounds.Left, CurrentTextBounds.Top,
CurrentTextBounds.Width, CurrentTextBounds.Height - FontSize)))
{
g.AppendPath(p);
}
g.LineWidth = 1;
g.SetSourceRGB (1, 1, 1);
g.StrokePreserve();
g.SetDash(new double[] { 2, 4 }, 0);
g.SetSourceRGB (1, .1, .2);
g.Stroke();
g.Restore();
}
}
InflateAndInvalidate(PintaCore.Workspace.ActiveDocument.CurrentUserLayer.previousTextBounds);
PintaCore.Workspace.Invalidate(old_cursor_bounds);
PintaCore.Workspace.Invalidate(r);
PintaCore.Workspace.Invalidate(cursorBounds);
old_cursor_bounds = cursorBounds;
}