|
public Rectangle ( |
||
| p | ||
| width | double | |
| height | double | |
| Результат | void | |
void ExposeTitle(Cairo.Context c)
{
// The primary title background
c.SetSourceRGBA(0, 0, 0, 0.3);
c.Rectangle(0, m_titleOffset, this.Allocation.Width, m_titleHeight);
c.Fill();
// The title shadow (lip)
c.SetSourceRGBA(0, 0, 0, 0.1);
c.Rectangle(0, m_titleOffset + m_titleHeight, this.Allocation.Width, m_titleLip);
c.Fill();
// Paint the title text
using (var p = Pango.CairoHelper.CreateLayout(c))
{
int w = 0, h = 0, pad = 0;
p.SetText(m_Title);
p.GetPixelSize(out w, out h);
pad = (m_titleHeight - h) / 2;
c.MoveTo(pad, m_titleOffset + pad);
c.SetSourceRGB(1.0, 1.0, 1.0);
Pango.CairoHelper.ShowLayout(c, p);
}
}
public override void Draw(Cairo.Context cr, double xPos, double yPos, PrintLayer layer)
{
if (layer == PrintLayer.Text)
{
yPos -= _extents.YAdvance;
// Only draw the line if there is enough space to display it
if (_extents.Width > 2)
{
yPos -= (_extents.Height / 2) - (_lineThickness / 2);
cr.Rectangle(xPos
, yPos
, _extents.Width
, _lineThickness);
cr.Fill();
}
if (_lineType == PrintLineType.Double)
{
yPos -= 4;
cr.Rectangle(xPos
, yPos
, _extents.Width
, _lineThickness);
cr.Fill();
}
}
}
//private double last_invalidate_value = -1;
/*private void Invalidate ()
* {
* double current_value = (IsValueUpdatePending ? PendingValue : Value);
*
* // FIXME: Something is wrong with the updating below causing an
* // invalid region when IsValueUpdatePending is true, so when
* // that is the case for now, we trigger a full invalidation
* if (last_invalidate_value < 0 || IsValueUpdatePending) {
* last_invalidate_value = current_value;
* InvalidateRender ();
* return;
* }
*
* double max = Math.Max (last_invalidate_value, current_value) * RenderSize.Width;
* double min = Math.Min (last_invalidate_value, current_value) * RenderSize.Width;
*
* Rect region = new Rect (
* InvalidationRect.X + min,
* InvalidationRect.Y,
* (max - min) + 2 * ThrobberSize,
* InvalidationRect.Height
* );
*
* last_invalidate_value = current_value;
* InvalidateRender (region);
* }*/
/*protected override Rect InvalidationRect {
* get { return new Rect (
* -Margin.Left - ThrobberSize / 2,
* -Margin.Top,
* Allocation.Width + ThrobberSize,
* Allocation.Height);
* }
* }*/
protected override void ClippedRender(Cairo.Context cr)
{
double throbber_r = ThrobberSize / 2.0;
double throbber_x = Math.Round(RenderSize.Width * (IsValueUpdatePending ? PendingValue : Value));
double throbber_y = (Allocation.Height - ThrobberSize) / 2.0 - Margin.Top + throbber_r;
double bar_w = RenderSize.Width * Value;
cr.SetSourceColor(Theme.Colors.GetWidgetColor(GtkColorClass.Base, Gtk.StateType.Normal));
cr.Rectangle(0, 0, RenderSize.Width, RenderSize.Height);
cr.Fill();
Color color = Theme.Colors.GetWidgetColor(GtkColorClass.Dark, Gtk.StateType.Active);
Color fill_color = CairoExtensions.ColorShade(color, 0.4);
Color light_fill_color = CairoExtensions.ColorShade(color, 0.3);
fill_color.A = 1.0;
light_fill_color.A = 1.0;
LinearGradient fill = new LinearGradient(0, 0, 0, RenderSize.Height);
fill.AddColorStop(0, light_fill_color);
fill.AddColorStop(0.5, fill_color);
fill.AddColorStop(1, light_fill_color);
cr.Rectangle(0, 0, bar_w, RenderSize.Height);
cr.SetSource(fill);
cr.Fill();
cr.SetSourceColor(fill_color);
cr.Arc(throbber_x, throbber_y, throbber_r, 0, Math.PI * 2);
cr.Fill();
}
private void DrawShape(Cairo.Context g, int width, int height)
{
int inner_x = radius + border + inner;
int cx = Center.X;
int cy = Center.Y;
g.Operator = Operator.Source;
g.Source = new SolidPattern(new Cairo.Color(0, 0, 0, 0));
g.Rectangle(0, 0, width, height);
g.Paint();
g.NewPath();
g.Translate(cx, cy);
g.Rotate(angle);
g.Source = new SolidPattern(new Cairo.Color(0.2, 0.2, 0.2, .6));
g.Operator = Operator.Over;
g.Rectangle(0, -(border + inner), inner_x, 2 * (border + inner));
g.Arc(inner_x, 0, inner + border, 0, 2 * Math.PI);
g.Arc(0, 0, radius + border, 0, 2 * Math.PI);
g.Fill();
g.Source = new SolidPattern(new Cairo.Color(0, 0, 0, 1.0));
g.Operator = Operator.DestOut;
g.Arc(inner_x, 0, inner, 0, 2 * Math.PI);
#if true
g.Fill();
#else
g.FillPreserve();
g.Operator = Operator.Over;
RadialGradient rg = new RadialGradient(inner_x - (inner * 0.3), inner * 0.3, inner * 0.1, inner_x, 0, inner);
rg.AddColorStop(0, new Cairo.Color(0.0, 0.2, .8, 0.5));
rg.AddColorStop(0.7, new Cairo.Color(0.0, 0.2, .8, 0.1));
rg.AddColorStop(1.0, new Cairo.Color(0.0, 0.0, 0.0, 0.0));
g.Source = rg;
g.Fill();
rg.Destroy();
#endif
g.Operator = Operator.Over;
g.Matrix = new Matrix();
g.Translate(cx, cy);
if (source != null)
{
SetSourcePixbuf(g, source, -source.Width / 2, -source.Height / 2);
}
g.Arc(0, 0, radius, 0, 2 * Math.PI);
g.Fill();
if (overlay != null)
{
SetSourcePixbuf(g, overlay, -overlay.Width / 2, -overlay.Height / 2);
g.Arc(0, 0, radius, angle, angle + Math.PI);
g.ClosePath();
g.FillPreserve();
g.Source = new SolidPattern(new Cairo.Color(1.0, 1.0, 1.0, 1.0));
g.Stroke();
}
}
protected void OnDrawingarea1ExposeEvent(object o, ExposeEventArgs args)
{
Console.WriteLine("Exposed");
DrawingArea area = (DrawingArea)o;
Cairo.Context cr = Gdk.CairoHelper.Create(area.GdkWindow);
int width = area.Allocation.Width;
int height = area.Allocation.Height;
int radius = (width < height ? width : height);
cr.SetSourceRGB(0.0, 0.0, 0.0);
cr.Rectangle(0, 0, width, height);
cr.Fill();
cr.Translate(this.offsetX, this.offsetY); // move "pointer"
cr.Scale(this.scale, this.scale);
cr.SetSourceSurface(this.surface, 0, 0); // offset surface
cr.Rectangle(0, 0, this.surface.Width, // offset cutout
this.surface.Height);
cr.Fill(); // apply
cr.SetSourceRGB(1.0, 0.0, 0.0);
cr.Arc(this.pointX, this.pointY, 2, 0, 2 * Math.PI);
cr.Fill();
((IDisposable)cr.GetTarget()).Dispose();
((IDisposable)cr).Dispose();
}
void DrawBackground(Cairo.Context gr)
{
gr.Rectangle(0, 0, Allocation.Width, Allocation.Height);
gr.Color = new Color(1, 1, 1);
gr.Fill();
gr.Rectangle(0, 0, Allocation.Width, timeHeight);
var gradient = new LinearGradient(0, 0, 0, timeHeight);
gradient.AddColorStop(0, timeGradientStartColor);
gradient.AddColorStop(1, timeGradientEndColor);
gr.Pattern = gradient;
gr.Fill();
gr.LineWidth = 1;
gr.Color = lineColor;
gr.MoveTo(0, timeHeight + 0.5);
gr.LineTo(Allocation.Width, timeHeight + 0.5);
gr.Stroke();
gr.MoveTo(0, timeHeight + eventHeight + 0.5);
gr.LineTo(Allocation.Width, timeHeight + eventHeight + 0.5);
gr.Stroke();
gr.MoveTo(boxWidth + 0.5, 0);
gr.LineTo(boxWidth + 0.5, Allocation.Height);
gr.Stroke();
}
protected void DrawHoverAndSelection(Cairo.Context cr)
{
cr.Save();
cr.Translate(XOffset, YOffset);
cr.Scale(Scale, Scale);
if (Hoverable && hoveringIndex != -1)
{
Cairo.Rectangle rect = GetTileRectSansPadding(HoveringX, HoveringY, scale: false, offset: false);
cr.NewPath();
cr.SetSourceColor(HoverColor);
cr.Rectangle(new Cairo.Rectangle(rect.X + 0.5, rect.Y + 0.5, rect.Width - 1, rect.Height - 1));
cr.LineWidth = 1;
cr.LineJoin = LineJoin.Bevel;
cr.Stroke();
}
if (Selectable)
{
var rect = GetTileRectSansPadding(SelectedX, SelectedY, scale: false, offset: false);
if (IsInBounds((int)rect.X, (int)rect.Y, scale: false, offset: false))
{
cr.NewPath();
cr.SetSourceColor(SelectionColor);
cr.Rectangle(rect.X + 0.5, rect.Y + 0.5, rect.Width - 1, rect.Height - 1);
cr.LineWidth = 1;
cr.Stroke();
}
}
cr.Restore();
}
protected override bool OnExposeEvent(EventExpose evnt)
{
using (Cairo.Context ctx = CairoHelper.Create(evnt.Window)) {
int dx = (int)((double)Allocation.Width * dividerPosition);
ctx.LineWidth = 1;
ctx.Rectangle(0, 0, dx, Allocation.Height);
ctx.SetSourceColor(LabelBackgroundColor);
ctx.Fill();
ctx.Rectangle(dx, 0, Allocation.Width - dx, Allocation.Height);
ctx.SetSourceRGB(1, 1, 1);
ctx.Fill();
if (PropertyContentRightPadding > 0)
{
ctx.Rectangle(Allocation.Width - PropertyContentRightPadding, 0, PropertyContentRightPadding, Allocation.Height);
ctx.SetSourceColor(LabelBackgroundColor);
ctx.Fill();
ctx.MoveTo(Allocation.Width - PropertyContentRightPadding + 0.5, 0);
ctx.RelLineTo(0, Allocation.Height);
ctx.SetSourceColor(DividerColor);
ctx.Stroke();
}
ctx.MoveTo(dx + 0.5, 0);
ctx.RelLineTo(0, Allocation.Height);
ctx.SetSourceColor(DividerColor);
ctx.Stroke();
int y = 0;
Draw(ctx, rows, dx, PropertyLeftPadding, ref y);
}
return(base.OnExposeEvent(evnt));
}
protected override void Render(Gdk.Drawable window, Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, CellRendererState flags)
{
using (Cairo.Context gr = Gdk.CairoHelper.Create(window)) {
gr.Rectangle(cell_area.X, cell_area.Y, cell_area.Width, cell_area.Height);
gr.Color = (HslColor)widget.Style.Base((flags & CellRendererState.Selected) == CellRendererState.Selected ? StateType.Selected : StateType.Normal);
gr.Fill();
var size = Math.Max(0, cell_area.Width - cell_area.Width * Time / 100.0);
var linearGradient = new LinearGradient(cell_area.X, cell_area.Y, cell_area.Right, cell_area.Bottom);
linearGradient.AddColorStop(0, new Cairo.Color(1, 0, 0));
linearGradient.AddColorStop(1, new Cairo.Color(1, 1, 1));
gr.Pattern = linearGradient;
gr.Rectangle(cell_area.X + size, cell_area.Y + 2, cell_area.Width - size, cell_area.Height - 4);
gr.Fill();
var layout = gr.CreateLayout();
layout.FontDescription = widget.PangoContext.FontDescription;
layout.SetText(string.Format("{0:0.0}", Time));
int w, h;
layout.GetPixelSize(out w, out h);
gr.MoveTo(cell_area.X + cell_area.Width - 2 - w, cell_area.Y + (cell_area.Height - h) / 2);
gr.Color = new Cairo.Color(0, 0, 0);
gr.ShowLayout(layout);
layout.Dispose();
}
}
/*override (Gdk.EventButton evnt)
* {
* var res = base.OnButtonPressEvent(evnt);
* if ((evnt.Button & (uint)Gdk.ModifierType.Button1Mask) != 0)
* {
* if ((evnt.Button & (uint)Gdk.ModifierType.ShiftMask) != 0)
* {
* // if is left click + shift
* EnableMode = EnableMode.ActiveWithLimit;
* }
* else
* {
* // if is left click
* EnableMode = EnableMode.Active;
* }
* }else if ((evnt.Button & (uint)Gdk.ModifierType.Button3Mask) != 0)
* {
* //right clicked
* EnableMode = EnableMode.Disabled;
* }
*
* QueueDraw();
*
* return res;
* }*/
void SetBgColor(EnableMode enableMode, Gdk.EventExpose evnt)
{
//this.ModifyBg(StateType.Normal, Colors[(int)EnableMode]);
Cairo.Context cr = Gdk.CairoHelper.Create(this.GdkWindow);
cr.Rectangle(0, 0, Allocation.Width, Allocation.Height);
Color c = new Color(0, 0, 0);
cr.SetSourceColor(c);
cr.Stroke();
cr.Rectangle(1, 1, Allocation.Width - 1, Allocation.Height - 1);
if (enableMode == EnableMode.Active)
{
c = Colors[1];
}
else if (enableMode == EnableMode.ActiveWithLimit)
{
c = Colors[2];
}
else if (enableMode == EnableMode.Disabled)
{
c = Colors[0];
}
cr.SetSourceColor(c);
cr.Fill();
cr.Target.Dispose();
cr.Dispose();
// set tooltip
HasTooltip = true;
TooltipText = enableMode.ToString();
}
void FillChecks (Context cr, int x, int y, int width, int height)
{
int CHECK_SIZE = 32;
cr.Save ();
Surface check = cr.Target.CreateSimilar (Content.Color, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
// draw the check
using (Context cr2 = new Context (check)) {
cr2.Operator = Operator.Source;
cr2.Color = new Color (0.4, 0.4, 0.4);
cr2.Rectangle (0, 0, 2 * CHECK_SIZE, 2 * CHECK_SIZE);
cr2.Fill ();
cr2.Color = new Color (0.7, 0.7, 0.7);
cr2.Rectangle (x, y, CHECK_SIZE, CHECK_SIZE);
cr2.Fill ();
cr2.Rectangle (x + CHECK_SIZE, y + CHECK_SIZE, CHECK_SIZE, CHECK_SIZE);
cr2.Fill ();
}
// Fill the whole surface with the check
SurfacePattern check_pattern = new SurfacePattern (check);
check_pattern.Extend = Extend.Repeat;
cr.Source = check_pattern;
cr.Rectangle (0, 0, width, height);
cr.Fill ();
check_pattern.Destroy ();
check.Destroy ();
cr.Restore ();
}
public void DrawObject(Context ctx, DrawingObject body)
{
if (body == null)
return;
ctx.Save ();
ctx.Color = new Cairo.Color (0, 0, 0);
ctx.LineWidth = 1;
foreach (Tuple<PointDouble, PointDouble> line in body.lines) {
ctx.MoveTo (line.Item1.toPointD());
ctx.LineTo (line.Item2.toPointD());
}
if (body.points.Count > 1)
ctx.Rectangle(body._centerOfMass.X - 5, body._centerOfMass.Y - 5, 10, 10);
ctx.Stroke ();
foreach (PointDouble point in body.points) {
ctx.Rectangle (point.X - 5, point.Y - 5, 10, 10);
ctx.Fill ();
}
foreach (Tuple<PointDouble, double, double> force in body._forces) {
DrawForce (ctx, force);
}
foreach (Tuple<PointDouble, double> moment in body._moments) {
DrawMoment (ctx, moment);
}
ctx.Restore ();
}
public void DrawRowSelection(Cairo.Context cr, int x, int y, int width, int height,
bool filled, bool stroked, Cairo.Color color, CairoCorners corners)
{
color.A *= 0.85;
Cairo.Color selection_color = color;
Cairo.Color selection_stroke = CairoExtensions.ColorShade(selection_color, 0.85);
selection_stroke.A = color.A;
if (filled)
{
Cairo.Color selection_fill_light = CairoExtensions.ColorShade(selection_color, 1.05);
Cairo.Color selection_fill_dark = selection_color;
selection_fill_light.A = color.A;
selection_fill_dark.A = color.A;
LinearGradient grad = new LinearGradient(x, y, x, y + height);
grad.AddColorStop(0, selection_fill_dark);
grad.AddColorStop(1, selection_fill_light);
cr.SetSource(grad);
cr.Rectangle(x, y, width, height);
cr.Fill();
grad.Dispose();
}
if (stroked && !filled)
{
cr.LineWidth = 1.0;
cr.SetSourceColor(selection_stroke);
cr.Rectangle(x + 0.5, y + 0.5, width - 1, height - 1);
cr.Stroke();
}
}
public static SurfacePattern CreateImageBrush(ImageBrush brush, Size targetSize)
{
if (brush.Source == null)
{
return null;
}
// TODO: This is directly ported from Direct2D and could probably be made more
// efficient on cairo by taking advantage of the fact that cairo has Extend.None.
var image = ((BitmapImpl)brush.Source.PlatformImpl).Surface;
var imageSize = new Size(brush.Source.PixelWidth, brush.Source.PixelHeight);
var tileMode = brush.TileMode;
var sourceRect = brush.SourceRect.ToPixels(imageSize);
var destinationRect = brush.DestinationRect.ToPixels(targetSize);
var scale = brush.Stretch.CalculateScaling(destinationRect.Size, sourceRect.Size);
var translate = CalculateTranslate(brush, sourceRect, destinationRect, scale);
var intermediateSize = CalculateIntermediateSize(tileMode, targetSize, destinationRect.Size);
var intermediate = new ImageSurface (Format.ARGB32, (int)intermediateSize.Width, (int)intermediateSize.Height);
using (var context = new Context(intermediate))
{
Rect drawRect;
var transform = CalculateIntermediateTransform(
tileMode,
sourceRect,
destinationRect,
scale,
translate,
out drawRect);
context.Rectangle(drawRect.ToCairo());
context.Clip();
context.Transform(transform.ToCairo());
Gdk.CairoHelper.SetSourcePixbuf(context, image, 0, 0);
context.Rectangle(0, 0, imageSize.Width, imageSize.Height);
context.Fill();
var result = new SurfacePattern(intermediate);
if ((brush.TileMode & TileMode.FlipXY) != 0)
{
// TODO: Currently always FlipXY as that's all cairo supports natively.
// Support separate FlipX and FlipY by drawing flipped images to intermediate
// surface.
result.Extend = Extend.Reflect;
}
else
{
result.Extend = Extend.Repeat;
}
if (brush.TileMode != TileMode.None)
{
var matrix = result.Matrix;
matrix.InitTranslate(-destinationRect.X, -destinationRect.Y);
result.Matrix = matrix;
}
return result;
}
}
protected override void Draw(Context cr, Pixbuf prev, Pixbuf next, int width, int height, double progress)
{
cr.Color = new Color (0, 0, 0, progress);
if (next != null) {
double scale = Math.Min ((double)width/(double)next.Width, (double)height/(double)next.Height);
cr.Save ();
cr.Rectangle (0, 0, width, .5 * (height - scale*next.Height));
cr.Fill ();
cr.Rectangle (0, height - .5 * (height - scale*next.Height), width, .5 * (height - scale*next.Height));
cr.Fill ();
cr.Rectangle (0, 0, .5 * (width - scale*next.Width), height);
cr.Fill ();
cr.Rectangle (width - .5 * (width - scale*next.Width), 0, .5 * (width - scale*next.Width), height);
cr.Fill ();
cr.Rectangle (0, 0, width, height);
cr.Scale (scale, scale);
CairoHelper.SetSourcePixbuf (cr, next, .5 * ((double)width/scale - next.Width), .5 * ((double)height/scale - next.Height));
cr.PaintWithAlpha (progress);
cr.Restore ();
}
}
protected void DrawBackground(Cairo.Context cr)
{
var totalRect = GetTotalBounds();
cr.SetSourceColor(BackgroundColor);
cr.Rectangle(totalRect.X, totalRect.Y, totalRect.Width, totalRect.Height);
cr.Fill();
cr.Save();
cr.Translate(XOffset, YOffset);
cr.Scale(Scale, Scale);
if (Surface != null)
{
cr.SetSource(Surface, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
else if (Image != null)
{
using (Surface source = new BitmapSurface(Image)) {
cr.SetSource(source, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
}
else
{
Cairo.Rectangle extents = cr.ClipExtents();
for (int i = 0; i < Width * Height; i++)
{
int tileX = i % Width;
int tileY = i / Width;
Cairo.Rectangle rect = GetTileRectWithPadding(tileX, tileY, scale: false, offset: false);
if (!CairoHelper.RectsOverlap(extents, rect))
{
continue;
}
cr.Save();
cr.Translate(rect.X + TilePaddingX, rect.Y + TilePaddingY);
cr.Rectangle(0, 0, TileWidth, TileHeight);
cr.Clip();
TileDrawer(i, cr);
cr.Restore();
}
}
cr.Restore(); // Undo scale, offset
}
public void Draw(Cairo.Context cr, Cairo.Rectangle rectangle)
{
if (IsSeparator)
{
cr.NewPath();
double x = Math.Ceiling(rectangle.X + rectangle.Width / 2) + 0.5;
cr.MoveTo(x, rectangle.Y + 0.5 + 2);
cr.RelLineTo(0, rectangle.Height - 1 - 4);
cr.ClosePath();
cr.SetSourceColor(parent.Style.Dark(StateType.Normal).ToCairoColor());
cr.LineWidth = 1;
cr.Stroke();
return;
}
if (Active || HoverPosition.X >= 0)
{
if (Active)
{
cr.Rectangle(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
using (var gr = new LinearGradient(rectangle.X, rectangle.Y, rectangle.X, rectangle.Y + rectangle.Height)) {
gr.AddColorStop(0, Tabstrip.ActiveGradientStart);
gr.AddColorStop(1, Tabstrip.ActiveGradientEnd);
cr.SetSource(gr);
}
cr.Fill();
cr.Rectangle(rectangle.X + 0.5, rectangle.Y + 0.5, rectangle.Width - 1, rectangle.Height - 1);
cr.SetSourceRGBA(1, 1, 1, 0.05);
cr.LineWidth = 1;
cr.Stroke();
}
else if (HoverPosition.X >= 0)
{
cr.Rectangle(rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height);
using (var gr = new LinearGradient(rectangle.X, rectangle.Y, rectangle.X, rectangle.Y + rectangle.Height)) {
var c1 = Tabstrip.ActiveGradientStart;
var c2 = Tabstrip.ActiveGradientEnd;
c1.A = 0.2;
c2.A = 0.2;
gr.AddColorStop(0, c1);
gr.AddColorStop(1, c2);
cr.SetSource(gr);
}
cr.Fill();
}
}
if (Active)
{
cr.SetSourceRGB(1, 1, 1);
}
else
{
cr.SetSourceColor(parent.Style.Text(StateType.Normal).ToCairoColor());
}
cr.MoveTo(rectangle.X + (rectangle.Width - w) / 2, (rectangle.Height - h) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
}
public void IntersectClip(RectangleD newClip)
{
cairoContext.Rectangle(newClip.X * drawingScaleX,
newClip.Y * drawingScaleY,
newClip.Width * drawingScaleX,
newClip.Height * drawingScaleY);
cairoContext.Clip();
}
void DrawButtonTabs(Cairo.Context cr, Cairo.Rectangle rectangle)
{
if (IsSeparator)
{
cr.NewPath();
double x = Math.Ceiling(rectangle.X + rectangle.Width / 2) + 0.5;
cr.MoveTo(x, rectangle.Y + 0.5 + 2);
cr.RelLineTo(0, rectangle.Height - 1 - 4);
cr.ClosePath();
cr.Color = (HslColor)parent.Style.Dark(StateType.Normal);
cr.LineWidth = 1;
cr.Stroke();
return;
}
int topPadding = 2;
if (Active || HoverPosition.X >= 0)
{
cr.Rectangle(rectangle.X + 1, rectangle.Y + 1 + topPadding, rectangle.Width - 1, rectangle.Height - topPadding);
if (Active)
{
cr.Color = (HslColor)parent.Style.Background(StateType.Prelight);
}
else if (HoverPosition.X >= 0)
{
double rx = rectangle.X + HoverPosition.X;
double ry = rectangle.Y + HoverPosition.Y;
Cairo.RadialGradient gradient = new Cairo.RadialGradient(rx, ry, rectangle.Height * 1.5,
rx, ry, 2);
var color = (HslColor)parent.Style.Dark(StateType.Normal);
color.L *= 1.1;
gradient.AddColorStop(0, color);
color.L *= 1.1;
gradient.AddColorStop(1, color);
cr.Pattern = gradient;
}
cr.Fill();
if (Active)
{
cr.Rectangle(rectangle.X + 0.5, rectangle.Y + 0.5 + topPadding, rectangle.Width - 1, rectangle.Height - topPadding);
cr.Color = (HslColor)parent.Style.Dark(StateType.Normal);
cr.LineWidth = 1;
cr.Stroke();
}
}
cr.Save();
cr.Translate(rectangle.X + (rectangle.Width - w) / 2, (rectangle.Height - h) / 2 + topPadding);
cr.Color = (HslColor)parent.Style.Text(StateType.Normal);
cr.ShowLayout(layout);
cr.Restore();
}
/// <summary>
/// Draws black in the areas outside the view.
/// Assumes that controlBounds is starting at (0, 0) in upper left corner.
/// </summary>
/// <param name="context">A context to perform drawing.</param>
/// <param name="controlBounds">Bounds of the control.</param>
/// <param name="view">The bounds of the view.</param>
public static void Draw(Context context, Rectangle controlBounds, Rectangle view)
{
context.Color = new Cairo.Color (0.0, 0.0, 0.0);
context.NewPath ();
context.Rectangle (0.0, 0.0, view.X, controlBounds.Height);
var wRight = controlBounds.Width - view.X - view.Width;
context.Rectangle (view.X + view.Width, 0.0, wRight, controlBounds.Height);
context.Rectangle (view.X, 0.0, view.Width, view.Y);
var hBottom = controlBounds.Height - view.Y - view.Height;
context.Rectangle (view.X, view.Y + view.Height, view.Width, hBottom);
context.Fill ();
}
protected override void Draw(Context cr, Pixbuf prev, Pixbuf next, int width, int height, double progress)
{
cr.SetSourceColor (new Color (0, 0, 0));
if (prev != null) {
double scale = Math.Min ((double)width/(double)prev.Width, (double)height/(double)prev.Height);
cr.Save ();
cr.Translate (-progress * width, 0);
cr.Rectangle (0, 0, width, .5 * (height - scale*prev.Height));
cr.Fill ();
cr.Rectangle (0, height - .5 * (height - scale*prev.Height), width, .5 * (height - scale*prev.Height));
cr.Fill ();
cr.Rectangle (0, 0, .5 * (width - scale*prev.Width), height);
cr.Fill ();
cr.Rectangle (width - .5 * (width - scale*prev.Width), 0, .5 * (width - scale*prev.Width), height);
cr.Fill ();
cr.Rectangle (0, 0, width, height);
cr.Scale (scale, scale);
CairoHelper.SetSourcePixbuf (cr, prev, .5 * ((double)width/scale - prev.Width), .5 * ((double)height/scale - prev.Height));
cr.Fill ();
cr.Restore ();
}
if (next != null) {
double scale = Math.Min ((double)width/(double)next.Width, (double)height/(double)next.Height);
cr.Save ();
cr.Translate (width * (1.0 - progress), 0);
cr.Rectangle (0, 0, width, .5 * (height - scale*next.Height));
cr.Fill ();
cr.Rectangle (0, height - .5 * (height - scale*next.Height), width, .5 * (height - scale*next.Height));
cr.Fill ();
cr.Rectangle (0, 0, .5 * (width - scale*next.Width), height);
cr.Fill ();
cr.Rectangle (width - .5 * (width - scale*next.Width), 0, .5 * (width - scale*next.Width), height);
cr.Fill ();
cr.Rectangle (0, 0, width, height);
cr.Scale (scale, scale);
CairoHelper.SetSourcePixbuf (cr, next, .5 * ((double)width/scale - next.Width), .5 * ((double)height/scale - next.Height));
cr.Fill ();
cr.Restore ();
}
}
private void OnDrawPage(object obj, Gtk.DrawPageArgs args)
{
PrintContext context = args.Context;
Cairo.Context cr = context.CairoContext;
double width = context.Width;
cr.Rectangle(0, 0, width, headerHeight);
cr.SetSourceRGB(0.8, 0.8, 0.8);
cr.FillPreserve();
cr.SetSourceRGB(0, 0, 0);
cr.LineWidth = 1;
cr.Stroke();
Pango.Layout layout = context.CreatePangoLayout();
Pango.FontDescription desc = Pango.FontDescription.FromString("sans 14");
layout.FontDescription = desc;
layout.SetText(fileName);
layout.Width = (int)width;
layout.Alignment = Pango.Alignment.Center;
int layoutWidth, layoutHeight;
layout.GetSize(out layoutWidth, out layoutHeight);
double textHeight = (double)layoutHeight / (double)pangoScale;
cr.MoveTo(width / 2, (headerHeight - textHeight) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
string pageStr = String.Format("{0}/{1}", args.PageNr + 1, numPages);
layout.SetText(pageStr);
layout.Alignment = Pango.Alignment.Right;
cr.MoveTo(width - 2, (headerHeight - textHeight) / 2);
Pango.CairoHelper.ShowLayout(cr, layout);
layout = null;
layout = context.CreatePangoLayout();
desc = Pango.FontDescription.FromString("mono");
desc.Size = (int)(fontSize * pangoScale);
layout.FontDescription = desc;
cr.MoveTo(0, headerHeight + headerGap);
int line = args.PageNr * linesPerPage;
for (int i = 0; i < linesPerPage && line < numLines; i++)
{
layout.SetText(lines[line]);
Pango.CairoHelper.ShowLayout(cr, layout);
cr.RelMoveTo(0, fontSize);
line++;
}
(cr as IDisposable).Dispose();
layout = null;
}
protected override bool OnExposeEvent(EventExpose evnt)
{
if (!IsRealized)
{
return(true);
}
using (Cairo.Context cr = Gdk.CairoHelper.Create(evnt.Window)) {
cr.Save();
cr.Color = new Cairo.Color(0, 0, 0, 0);
cr.Operator = Operator.Source;
cr.Paint();
cr.Restore();
int width, height;
GetSizeRequest(out width, out height);
double opacity = Math.Min(1, (DateTime.UtcNow - shown_time).TotalMilliseconds / AnimationTime);
if (!curtainDown)
{
opacity = 1 - opacity;
}
cr.Rectangle(0, 0, width, height);
cr.Color = new Cairo.Color(0, 0, 0, CurtainOpacity * opacity);
cr.Fill();
(cr.Target as IDisposable).Dispose();
}
return(false);
}
public void clip(Context ctx)
{
foreach (Rectangle r in list)
ctx.Rectangle(r);
ctx.Clip();
}
void DrawFoldSegment(Cairo.Context ctx, double x, double y, bool isOpen, bool isSelected)
{
var drawArea = new Cairo.Rectangle(System.Math.Floor(x + (Margin.Width - foldSegmentSize) / 2) + 0.5,
System.Math.Floor(y + (Editor.LineHeight - foldSegmentSize) / 2) + 0.5, foldSegmentSize, foldSegmentSize);
ctx.Rectangle(drawArea);
ctx.SetSourceColor(isOpen ? foldBgGC : foldToggleMarkerBackground);
ctx.FillPreserve();
ctx.SetSourceColor(isSelected ? foldLineHighlightedGC : foldLineGC);
ctx.Stroke();
ctx.DrawLine(isSelected ? foldLineHighlightedGC : foldToggleMarkerGC,
drawArea.X + drawArea.Width * 2 / 10,
drawArea.Y + drawArea.Height / 2,
drawArea.X + drawArea.Width - drawArea.Width * 2 / 10,
drawArea.Y + drawArea.Height / 2);
if (!isOpen)
{
ctx.DrawLine(isSelected ? foldLineHighlightedGC : foldToggleMarkerGC,
drawArea.X + drawArea.Width / 2,
drawArea.Y + drawArea.Height * 2 / 10,
drawArea.X + drawArea.Width / 2,
drawArea.Y + drawArea.Height - drawArea.Height * 2 / 10);
}
}
private void PaintZoomScale(Cairo.Context gc, double width, double height, double centerx, double centery)
{
if (this.drawZoomScale)
{
gc.Save();
string s = String.Format("x:{0:##0.0} y:{1:##0.0} *:{2:#0.0#}",
this.TranslatedX,
this.TranslatedY,
this.ScaleFactor);
int textWidth, textHeight;
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = this.PangoContext.FontDescription.Copy();
layout.FontDescription.Size = Pango.Units.FromDouble(12.0);
layout.SetText(s);
Size te = GetTextSize(layout);
gc.Color = new Cairo.Color(0.0, 0.0, 0.0, 0.6);
gc.Rectangle(width - 7.5d - te.Width, height - te.Height - 5.5d, 7.5d + te.Width, 5.5d + te.Height);
gc.Fill();
gc.MoveTo(width - 4.5d - te.Width, height - te.Height - 4.5d);
gc.Color = new Cairo.Color(1.0, 1.0, 1.0, 0.6);
Pango.CairoHelper.ShowLayout(gc, layout);
gc.Fill();
gc.Restore();
}
}
protected override bool OnExposeEvent(EventExpose ev)
{
if (!IsRealized)
{
return(false);
}
Cairo.Context cr = CairoHelper.Create(GdkWindow);
Gdk.Rectangle rect = ev.Area;
cr.Rectangle(rect.X, rect.Y, rect.Width, rect.Height);
cr.Clip();
paper.Draw(cr, rect);
drawStrokes(cr, rect);
// Uncomment this to see the clipping region
/* cr.Color = new Cairo.Color(0.0,1.0,0.0,0.5);
* cr.Rectangle(rect.X, rect.Y, rect.Width, rect.Height);
* cr.Stroke();*/
((IDisposable)cr).Dispose();
return(true);
}
protected override void RenderCoverArt(Cairo.Context cr, ImageSurface image)
{
if (image == null)
{
return;
}
Gdk.Rectangle alloc = RenderAllocation;
int asr = ArtworkSizeRequest;
int reflect = (int)(image.Height * 0.2);
int surface_w = image.Width;
int surface_h = image.Height + reflect;
int x = alloc.X + alloc.Width - asr;
int y = alloc.Y;
Surface scene = null;
if (!surfaces.TryGetValue(image, out scene))
{
scene = CreateScene(cr, image, reflect);
surfaces.Add(image, scene);
}
cr.Rectangle(x, y, asr, alloc.Height);
cr.Color = BackgroundColor;
cr.Fill();
x += (asr - surface_w) / 2;
y += surface_h > asr ? 0 : (asr - surface_h) / 2;
cr.SetSource(scene, x, y);
cr.Paint();
}
public override void Run()
{
ICollection<double> chapters = this.Theory.Chapters;
StripCanvasSize scs = this.Manager.GenerateStripCanvasSize (chapters.Count);
double dw = scs.CanvasSize.Width;
double dh = scs.CanvasSize.Height;
using (PdfSurface surface = new PdfSurface (this.Manager.OutputFile, scs.TotalWidth, scs.TotalHeight)) {
using (Context ctx = new Context (surface)) {
int index = 0x00;
IPoint3 p;
foreach (double chapter in chapters) {
p = scs.GetCanvasOffset (index);
ctx.Save ();
ctx.Translate (p.X, p.Y);
ctx.Rectangle (0.0d, 0.0d, dw, dh);
ctx.Stroke ();
this.Theory.Time = chapter;
CairoEngine engine = new CairoEngine (this.Theory);
engine.Context = ctx;
engine.Process ();
ctx.Restore ();
index++;
}
}
}
}
//private double last_invalidate_value = -1;
/*private void Invalidate ()
* {
* double current_value = (IsValueUpdatePending ? PendingValue : Value);
*
* // FIXME: Something is wrong with the updating below causing an
* // invalid region when IsValueUpdatePending is true, so when
* // that is the case for now, we trigger a full invalidation
* if (last_invalidate_value < 0 || IsValueUpdatePending) {
* last_invalidate_value = current_value;
* InvalidateRender ();
* return;
* }
*
* double max = Math.Max (last_invalidate_value, current_value) * RenderSize.Width;
* double min = Math.Min (last_invalidate_value, current_value) * RenderSize.Width;
*
* Rect region = new Rect (
* InvalidationRect.X + min,
* InvalidationRect.Y,
* (max - min) + 2 * ThrobberSize,
* InvalidationRect.Height
* );
*
* last_invalidate_value = current_value;
* InvalidateRender (region);
* }*/
/*protected override Rect InvalidationRect {
* get { return new Rect (
* -Margin.Left - ThrobberSize / 2,
* -Margin.Top,
* Allocation.Width + ThrobberSize,
* Allocation.Height);
* }
* }*/
protected override void ClippedRender(Cairo.Context cr)
{
double throbber_r = ThrobberSize / 2.0;
double throbber_x = Math.Round(RenderSize.Width * (IsValueUpdatePending ? PendingValue : Value));
double throbber_y = (Allocation.Height - ThrobberSize) / 2.0 - Margin.Top + throbber_r;
double bar_w = RenderSize.Width * Value;
Theme.Widget.StyleContext.Save();
Theme.Widget.StyleContext.AddClass("entry");
Theme.Widget.StyleContext.RenderBackground(cr, 0, 0, RenderSize.Width, RenderSize.Height);
var color = CairoExtensions.GdkRGBAToCairoColor(Theme.Widget.StyleContext.GetColor(Gtk.StateFlags.Active));
Theme.Widget.StyleContext.Restore();
// TODO get Dark color
Color fill_color = CairoExtensions.ColorShade(color, 0.4);
Color light_fill_color = CairoExtensions.ColorShade(color, 0.3);
fill_color.A = 1.0;
light_fill_color.A = 1.0;
using (var fill = new LinearGradient(0, 0, 0, RenderSize.Height)) {
fill.AddColorStop(0, light_fill_color);
fill.AddColorStop(0.5, fill_color);
fill.AddColorStop(1, light_fill_color);
cr.Rectangle(0, 0, bar_w, RenderSize.Height);
cr.SetSource(fill);
cr.Fill();
cr.SetSourceColor(fill_color);
cr.Arc(throbber_x, throbber_y, throbber_r, 0, Math.PI * 2);
cr.Fill();
}
}
protected override void CreateActiveTexture(Clutter.CairoTexture texture, int with_state)
{
texture.Clear();
Cairo.Context context = texture.Create();
double lwidth = 1;
double hlwidth = lwidth * 0.5;
//Draw outline rectangles:
DrawSmallCovers(context, texture.Width, texture.Height, lwidth);
//Draw stop icon:
double dim = Math.Min(texture.Width * 0.6 - hlwidth, texture.Height * 0.6 - hlwidth);
context.Rectangle(texture.Width * 0.4, texture.Height * 0.4, dim, dim);
context.LineWidth = lwidth;
double sat = (with_state == 0 ? 0.4 : (with_state == 1 ? 0.6 : 0.8));
context.SetSourceRGBA(sat, sat, sat, 1.0);
context.FillPreserve();
context.SetSourceRGB(1.0, 1.0, 1.0);
context.Stroke();
((IDisposable)context.Target).Dispose();
((IDisposable)context).Dispose();
}
public void Render(DrawingArea area, SettingsModel settings)
{
var width = area.Allocation.Width;
var height = area.Allocation.Height;
var kaleidoscope = _factory.Get (settings.Type);
var rootNode = kaleidoscope.Generate (
settings.GeometyWidth,
settings.ImageUri,
width, height);
ImageSurface surface = new ImageSurface(Format.Argb32, width, height);
using (var context = new Context (surface)) {
context.Translate(width / 2, height / 2);
rootNode.Render (context);
}
rootNode.Geometry.Dispose ();
using (Context context = Gdk.CairoHelper.Create (area.GdkWindow)) {
context.Rectangle(0, 0, width, height);
context.SetSource(surface);
context.Fill();
context.GetTarget ().Dispose ();
}
surface.Dispose ();
}
private void RenderNetwork(Network network, Cairo.Context gc)
{
lock (network) {
Rectangle rect = (Rectangle)network.Properties["rect"];
SizeD titleSize = CalculateNetworkTitleSize(network, gc);
Hashtable nodegroups = network.Properties["nodegroups"] as Hashtable;
gc.Save();
// Draw network box
gc.Color = networkBG;
gc.Rectangle(rect);
gc.Fill();
// Draw title, 2px/2px offset from top/left corner
gc.Color = white;
gc.MoveTo(rect.X + 2, rect.Y + 2 /* + titleSize.Height */);
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = this.PangoContext.FontDescription.Copy();
layout.FontDescription.Size = Pango.Units.FromDouble(NetworkNameFontSize);
layout.SetText(network.NetworkName);
Pango.CairoHelper.ShowLayout(gc, layout);
foreach (NodeGroup ng in nodegroups.Values)
{
RenderNodeGroup(ng, network, gc);
}
gc.Restore();
RenderConnections(network, gc);
}
}
static void draw(Cairo.Context gr, int width, int height)
{
int w, h;
ImageSurface image;
gr.Scale(width, height);
gr.LineWidth = 0.04;
gr.Arc(0.5, 0.5, 0.3, 0, 2 * M_PI);
gr.Clip();
gr.NewPath();
image = new ImageSurface("data/e.png");
w = image.Width;
h = image.Height;
gr.Scale(1.0 / w, 1.0 / h);
image.Show(gr, 0, 0);
image.Destroy();
gr.Arc(0.5, 0.5, 0.3, 0, 2 * M_PI);
gr.Clip();
gr.NewPath();
gr.Rectangle(new PointD(0, 0), 1, 1);
gr.Fill();
gr.Color = new Color(0, 1, 0, 1);
gr.MoveTo(new PointD(0, 0));
gr.LineTo(new PointD(1, 1));
gr.MoveTo(new PointD(1, 0));
gr.LineTo(new PointD(0, 1));
gr.Stroke();
}
public void DrawHist(TimeList<Complex[]> list, double t)
{
using (Context context = new Context(Surface)) {
context.Rectangle(0, 0, Width, Height);
context.Color = Background;
context.Fill();
int index = list.Index (t);
int times = 30;
double xl = (double)(Width - 60) / N;
double yl = (double)Height / times;
Complex[] points;
Color c;
int ii;
for (int i = index; i >= Math.Max(0, index - times); i--) {
points = list.Get (i);
N = points.Length;
ii = index - i;
for (int j = 0; j < points.Length; j++) {
DrawHistArea (context, xl, yl, ii, j, _valueExtractor(points [j]));
}
}
}
DrawExpose (null, null);
}
public static void PrintMonthHeader(Cairo.Context cr, int year, int month, bool outputMonthHeaderRect = false)
{
if (outputMonthHeaderRect)
{
var MonthHeaderRect = new Rectangle(
MarginLeft, MarginUp,
ContentWidth,
MonthHeader);
cr.Rectangle(MonthHeaderRect);
}
var Month = MonthNames[month];
cr.SetFontSize(MonthHeader * 0.8);
var te = cr.TextExtents(Month);
cr.MoveTo(MarginLeft - te.XBearing,
MarginUp + MonthHeader - ((MonthHeader - te.Height) / 2) - (te.Height + te.YBearing));
cr.ShowText(Month);
te = cr.TextExtents(year.ToString());
cr.MoveTo(width - MarginRight - te.Width - te.XBearing,
MarginUp + MonthHeader - ((MonthHeader - te.Height) / 2) - (te.Height + te.YBearing));
cr.ShowText(year.ToString());
}
protected override bool OnExposeEvent(Gdk.EventExpose evnt)
{
bool idle = incoming_track == null && current_track == null;
if (!Visible || !IsMapped || (idle && !CanRenderIdle))
{
return(true);
}
Cairo.Context cr = Gdk.CairoHelper.Create(evnt.Window);
foreach (Gdk.Rectangle damage in evnt.Region.GetRectangles())
{
cr.Rectangle(damage.X, damage.Y, damage.Width, damage.Height);
cr.Clip();
if (idle)
{
RenderIdle(cr);
}
else
{
RenderAnimation(cr);
}
cr.ResetClip();
}
CairoExtensions.DisposeContext(cr);
return(true);
}
public override void Draw(Cairo.Context cr, double xPos, double yPos, PrintLayer layer)
{
if (_regionSettings != null)
{
xPos += _regionSettings.Indent;
if (layer == PrintLayer.Background && _regionSettings.HasBackground)
{
TextExtents extents = GetExtents(cr);
// If there is a background, draw it here.
cr.SetSourceRGB(_regionSettings.Background.Red, _regionSettings.Background.Green, _regionSettings.Background.Blue);
cr.Rectangle(xPos
, yPos - extents.Height - extents.YAdvance
, extents.Width - _regionSettings.Indent
, extents.Height + extents.YAdvance);
cr.Fill();
}
else if (layer == PrintLayer.Text)
{
xPos += _regionSettings.PaddingLeft;
yPos -= _regionSettings.PaddingBottom;
}
}
_children.VerticalDraw(cr, xPos, yPos, layer);
}
void Draw(Context cr, int width, int height)
{
cr.LineWidth = 1.0;
cr.Color = new Color(1.0, 1.0, 1.0);
cr.Rectangle(0, 0, width, height);
cr.Fill();
cr.Save();
cr.Scale(scale_factor, scale_factor);
try
{
if(diagram != null)
{
DiagramRenderer dr = new DiagramRenderer(cr, width, height, diagram);
cr.Color = new Color(0.0, 0.0, 0.0);
dr.Render();
dr.Draw();
}
}
catch
{
error_counter++;
}
cr.Restore();
}
public virtual void Draw(Context cr, Gdk.Rectangle clip)
{
cr.Rectangle(clip.X, clip.Y, clip.Width, clip.Height);
cr.Color = BackgroundColor;
cr.Fill();
cr.Stroke();
}
static void draw(Cairo.Context gr, int width, int height)
{
gr.Scale(width, height);
gr.LineWidth = 0.04;
LinearGradient pat;
pat = new LinearGradient(0.0, 0.0, 0.0, 1.0);
pat.AddColorStop(1, new Color(0, 0, 0, 1));
pat.AddColorStop(0, new Color(1, 1, 1, 1));
gr.Rectangle(new PointD(0, 0),
1, 1
);
gr.Pattern = pat;
gr.Fill();
pat.Destroy();
RadialGradient pat2 = new RadialGradient(0.45, 0.4, 0.1,
0.4, 0.4, 0.5);
pat2.AddColorStop(0, new Color(1, 1, 1, 1));
pat2.AddColorStop(1, new Color(0, 0, 0, 1));
gr.Pattern = pat2;
gr.Arc(0.5, 0.5, 0.3, 0, 2 * M_PI);
gr.Fill();
pat2.Destroy();
}
public override void Apply (CanvasItem item, Context cr)
{
int steps = ShadowSize;
double opacity_step = ShadowOpacity / ShadowSize;
Color color = new Color (0, 0, 0);
double width = Math.Round (item.Allocation.Width);
double height = Math.Round (item.Allocation.Height);
if (Fill != null) {
cr.Rectangle (shadow_size, shadow_size, width - ShadowSize * 2, height - ShadowSize * 2);
Fill.Apply (cr);
cr.Fill ();
}
cr.LineWidth = 1.0;
for (int i = 0; i < steps; i++) {
CairoExtensions.RoundedRectangle (cr,
i + 0.5,
i + 0.5,
(width - 2 * i) - 1,
(height - 2 * i) - 1,
steps - i);
color.A = opacity_step * (i + 1);
cr.Color = color;
cr.Stroke ();
}
}
public override void Draw(Cairo.Context cr, double xPos, double yPos, PrintLayer layer)
{
if (layer == PrintLayer.Text)
{
cr.SetFont(_fontInfo);
yPos -= _extents.YAdvance;
if (_fontInfo.Underline == true)
{
TextExtents extents = GetExtents(cr);
cr.Rectangle(xPos
, yPos - _fontInfo.UnderlineHeight
, extents.Width
, _fontInfo.UnderlineHeight);
cr.Fill();
yPos -= _fontInfo.UnderlineHeight + 2.0;
}
cr.MoveTo(xPos, yPos);
cr.ShowText(_text);
}
}
public void clear(Context ctx)
{
foreach (Rectangle r in list)
ctx.Rectangle(r);
ctx.Operator = Operator.Clear;
ctx.Fill();
ctx.Operator = Operator.Over;
}
protected void OnRender(Context cr, int width, int height)
{
cr.Save();
cr.SetSourceRGBA(1, 0, 0, mTick*0.1);
cr.Rectangle(0, 0, width, height);
cr.Fill();
cr.Restore();
}
public override void Draw(Context context)
{
RectangleD rect = DisplayBox;
context.LineWidth = LineWidth;
context.Rectangle (GdkCairoHelper.CairoRectangle (rect));
context.Color = FillColor;
context.FillPreserve ();
context.Color = LineColor;
context.Stroke ();
}
public void clearAndClip(Context ctx)
{
if (list.Count == 0)
return;
foreach (Rectangle r in list)
ctx.Rectangle(r);
ctx.ClipPreserve();
ctx.Operator = Operator.Clear;
ctx.Fill();
ctx.Operator = Operator.Over;
}
public override void LayoutOutline(Node node, Context context)
{
ImageNode image = node as ImageNode;
ImageSurface surfaceCache = image.Data as ImageSurface;
if (surfaceCache == null) {
// will improve with CGLayer surfaces
surfaceCache = new ImageSurface (image.File);
}
context.Rectangle (0, 0, image.Width, image.Height);
}
public override void BasicDraw (Context context) {
RectangleD displayBox = DisplayBox;
context.LineWidth = LineWidth;
context.Save ();
displayBox.OffsetDot5 ();
context.Rectangle (GdkCairoHelper.CairoRectangle(displayBox));
context.Restore ();
context.Color = FillColor;
context.FillPreserve ();
context.Color = LineColor;
context.Stroke ();
}
public override void BasicDrawSelected(Context context)
{
if (Text != "") {
return;
}
context.LineWidth = LineWidth;
Color c = LineColor;
c.A = 0.5;
context.Color = c;
RectangleD r = DisplayBox;
r.OffsetDot5();
context.Rectangle(GdkCairoHelper.CairoRectangle(r));
context.Stroke();
}
private ImageSurface copySurfacePart(ImageSurface surf, Gdk.Rectangle dest_rect)
{
ImageSurface tmp_surface = new ImageSurface (Format.Argb32, dest_rect.Width, dest_rect.Height);
using (Context g = new Context (tmp_surface)) {
g.Operator = Operator.Source;
g.SetSourceSurface (surf, -dest_rect.Left, -dest_rect.Top);
g.Rectangle (new Rectangle (0, 0, dest_rect.Width, dest_rect.Height));
g.Fill ();
}
//Flush to make sure all drawing operations are finished
tmp_surface.Flush ();
return tmp_surface;
}
public override void LayoutOutline(Node node, Context context)
{
LabelNode label = node as LabelNode;
Cairo.Engine engine = node.Canvas.Engine as Cairo.Engine;
if (label.ClipInputToTextExtents) {
var options = new TextOptions ();
options.Color = label.Color.MultiplyAlpha (node.Opacity);
options.MaxWidth = label.Width;
var size = GetExtents (label.Text, options, engine);
double x = label.Width - size.Width;
x = (int) (x * label.XAlign);
double y = label.Height - size.Height;
y = (int) (y * label.YAlign);
context.Rectangle (x, y, size.Width, size.Height);
} else {
context.Rectangle (0, 0, label.Width, label.Height);
}
}
public void CreatePng ()
{
const int Width = 480;
const int Height = 160;
const int CheckSize = 10;
const int Spacing = 2;
// Create an Image-based surface with data stored in ARGB32 format and a context,
// "using" is used here to ensure that they are Disposed once we are done
using (ImageSurface surface = new ImageSurface (Format.ARGB32, Width, Height))
using (Context cr = new Cairo.Context (surface))
{
// Start drawing a checkerboard
int i, j, xcount, ycount;
xcount = 0;
i = Spacing;
while (i < Width) {
j = Spacing;
ycount = xcount % 2; // start with even/odd depending on row
while (j < Height) {
if (ycount % 2 != 0)
cr.SetSourceRGB (1, 0, 0);
else
cr.SetSourceRGB (1, 1, 1);
// If we're outside the clip, this will do nothing.
cr.Rectangle (i, j, CheckSize, CheckSize);
cr.Fill ();
j += CheckSize + Spacing;
++ycount;
}
i += CheckSize + Spacing;
++xcount;
}
// Select a font to draw with
cr.SelectFontFace ("serif", FontSlant.Normal, FontWeight.Bold);
cr.SetFontSize (64.0);
// Select a color (blue)
cr.SetSourceRGB (0, 0, 1);
// Draw
cr.MoveTo (20, 100);
cr.ShowText ("Hello, World");
surface.WriteToPng ("test.png");
}
}
protected void OnCustomWidgetChanged (Gtk.Widget widget)
{
OnCustomWidgetApply (widget);
using (ImageSurface surface = new ImageSurface (Format.ARGB32, 360, 254)) {
using (Context gr = new Context (surface)) {
gr.Color = new Color (1, 1, 1);
gr.Rectangle (0, 0, 360, 254);
gr.Fill ();
using (Gdk.Pixbuf pixbuf = Gdk.Pixbuf.LoadFromResource ("flower.png")) {
DrawImage (gr, pixbuf,0, 0, 360, 254);
}
}
(widget as CustomPrintWidget).PreviewImage.Pixbuf = CreatePixbuf (surface);
}
}
public override void Render(Context cr)
{
if (!CanResize) {
return;
}
var selected_color = CairoExtensions.GdkColorToCairoColor (Window.Style.Dark (StateType.Active));
var grad = new LinearGradient (0, 0, 0, Allocation.Height);
selected_color.A = 0.4;
grad.AddColorStop (0, selected_color);
selected_color.A = 1.0;
grad.AddColorStop (1, selected_color);
cr.Pattern = grad;
cr.LineWidth = 1.0;
cr.Rectangle (0.5, 0.5, Allocation.Width - 1, Allocation.Height - 1);
cr.Stroke ();
selected_color.A = 0.5;
cr.Color = selected_color;
double handle_size = 8;
double ty = 0.5 + Allocation.Height - handle_size - 3;
double tx = 0.5 + (Window.Direction == TextDirection.Ltr
? Allocation.Width - handle_size - 3
: 3);
cr.Translate (tx, ty);
for (double i = 0; i < 3; i++) {
if (Window.Direction == TextDirection.Ltr) {
cr.MoveTo (i * 3, handle_size);
cr.LineTo (handle_size, i * 3);
} else {
cr.MoveTo (0, i * 3);
cr.LineTo (handle_size - i * 3, handle_size);
}
}
cr.Stroke ();
cr.Translate (-tx, -ty);
}
public static Gtk.Image create_big_starred_image(string pic_path)
{
using (Cairo.ImageSurface img_surface = new ImageSurface(pic_path)) {
using (Cairo.ImageSurface surface = new Cairo.ImageSurface(Cairo.Format.ARGB32, img_surface.Width + 2, img_surface.Height + 2)) {
using (Cairo.Context context = new Context(surface)) {
Gdk.Pixbuf tmp_pixbuf = new Gdk.Pixbuf(pic_path);
if (!tmp_pixbuf.HasAlpha) { // img_surface.Format not available...
context.Rectangle(0, 0, img_surface.Width+2, img_surface.Height+2);
context.Fill();
context.Stroke();
}
context.SetSource(img_surface, 1, 1);
context.Paint();
// evil hack because the interface to cairo is pretty bad
Assembly asm = Assembly.GetCallingAssembly();
Stream s = asm.GetManifestResourceStream("big_star.png");
FileStream fs = new System.IO.FileStream(tmp_image_path, FileMode.Create);
for (int i = 0; i < s.Length; ++i)
fs.WriteByte((byte)s.ReadByte());
fs.Close();
using (Cairo.ImageSurface star_surface = new ImageSurface(tmp_image_path)) {
System.IO.File.Delete(tmp_image_path);
context.SetSource(star_surface, img_surface.Width-star_surface.Width, img_surface.Height-star_surface.Height);
context.Paint();
surface.WriteToPng(tmp_image_path);
Gtk.Image img = new Gtk.Image(tmp_image_path);
System.IO.File.Delete(tmp_image_path);
return img;
}
}
}
}
}
private void DrawAxes(Context context, double min, double max)
{
context.Rectangle(0, 0, Width, Height);
context.Color = Background;
context.Fill();
context.LineWidth = 1;
context.SetSourceRGB(0.0, 0.0, 0.0);
context.MoveTo (0, Height / 2);
context.LineTo (Width, Height / 2);
context.StrokePreserve();
context.MoveTo (Width / 2, 0);
context.LineTo (Width / 2, Height);
context.StrokePreserve();
KeyValuePair<double, string>[] ax = _axis.AxisSteps (min, max);
double y;
foreach (var a in ax) {
y = a.Key / _axis.YLimUp * Height / 2 + Height / 2;
context.MoveTo (Width / 2 - 6, y);
context.LineTo (Width / 2 + 6, y);
context.StrokePreserve();
context.MoveTo (y, Height / 2 - 6);
context.LineTo (y, Height / 2 + 6);
context.StrokePreserve();
if (a.Key != 0) {
context.MoveTo (Width / 2 - 10, Height - (y - 1));
_axis.Text (context, a.Value, HorizontalTextAlignment.Right);
context.MoveTo (y - 1, Height / 2 + 10);
_axis.Text (context, a.Value, HorizontalTextAlignment.Center, VerticalTextAlignment.Top);
} else {
//context.MoveTo (Width / 2 + 5, Height / 2 + 5);
//_axis.Text (context, a.Value, HorizontalTextAlignment.Left, VerticalTextAlignment.Top);
}
}
}
public static void Draw(Context grw, RectangleElement rect)
{
if (rect.Foregraund != null) {
grw.SetSourceRGBA (
rect.Foregraund.Red,
rect.Foregraund.Green,
rect.Foregraund.Blue,
rect.Alpha);
}
grw.Rectangle (
new Rectangle (
rect.LeftBottom.GeometryX,
rect.LeftBottom.GeometryY,
rect.GeometryWidth,
rect.GeometryHeight));
grw.StrokePreserve();
grw.Fill();
}
protected override bool OnExposed(Context cr, Rectangle area)
{
cr.Save();
if(!base.OnExposed(cr, area))
{
cr.Color = new Color(1.0, 0.0, 1.0);
cr.Rectangle(new Rectangle(2.0, 2.0, Allocation.Width - 4.0, Allocation.Height - 4.0));
cr.LineWidth = 4.0;
cr.LineJoin = LineJoin.Round;
cr.Stroke();
cr.SetFontSize(20.0);
cr.SelectFontFace("Librarian", FontSlant.Normal, FontWeight.Bold);
cr.Translate(0.0, Allocation.Height / 2);
cr.ShowText(type.ToString());
cr.Restore();
return true;
}
cr.Restore();
return true;
}
private void Form1_Shown(object sender, EventArgs e)
{
Debug.WriteLine("Form1_Shown");
surface = new Win32Surface(this.CreateGraphics().GetHdc());
context = new Context(surface);
textFormat = DWriteCairo.CreateTextFormat(
"Consolas",
FontWeight.Normal,
FontStyle.Normal,
FontStretch.Normal,
12);
textFormat.TextAlignment = TextAlignment.Center;
float left, top, width, height;
// get actual size of the text
var measureLayout = DWriteCairo.CreateTextLayout(s, textFormat, 4096, 4096);
measureLayout.GetRect(out left, out top, out width, out height);
measureLayout.Dispose();
// build text context against the size and format
textLayout = DWriteCairo.CreateTextLayout(s, textFormat, (int)Math.Ceiling(width), (int)Math.Ceiling(height));
Debug.WriteLine("showing layout");
Path path = DWriteCairo.RenderLayoutToCairoPath(context, textLayout);
context.AppendPath(path);
context.Fill();
textLayout.GetRect(out left, out top, out width, out height);
textRect = new System.Drawing.RectangleF(left, top, width, height);
context.Rectangle(left, top, width, height);
context.Stroke();
context.GetTarget().Flush();
}
