internal void StartDrawing(Rectangle ba, Rectangle ca, Gtk.CellRendererState flags)
{
this.cellArea = ca;
this.backgroundArea = ba;
isSelected = (flags & Gtk.CellRendererState.Selected) != 0;
hasFocus = (flags & Gtk.CellRendererState.Focused) != 0;
isDrawing = true;
}
internal void StartDrawing(Rectangle ba, Rectangle ca, Gtk.CellRendererState flags)
{
this.cellArea = ca;
this.backgroundArea = ba;
isSelected = (flags & CellRendererState.Selected) != 0;
hasFocus = (flags & CellRendererState.Focused) != 0;
isPrelit = (flags & CellRendererState.Prelit) != 0;
// Gtk will rerender the cell on every status change, hence we can expect the values
// set here to be valid until the geometry or any other status of the cell and tree changes.
// Setting shown=true ensures that those values are always reused instead if queried
// from the parent tree after the cell has been rendered.
shown = true;
}
protected override void Render(Gdk.Drawable window, Gtk.Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, Gtk.CellRendererState flags)
{
base.Render(window, widget, background_area, cell_area, expose_area, flags);
if (text_layout == null)
{
UpdateLayout(widget);
}
int x, y, width, height;
/* first render the text */
text_layout.GetPixelSize(out var text_width, out var text_height);
x = (int)(cell_area.X + Xpad + Math.Max((int)(Xalign * (cell_area.Width - 2 * Xpad - text_width)), 0));
y = (int)(cell_area.Y + Ypad);
Style.PaintLayout(widget.Style,
window,
StateType.Normal,
true,
cell_area,
widget,
"cellrenderertextprogress",
x, y,
text_layout);
y += (int)(text_height + Ypad);
x = (int)(cell_area.X + Xpad + Math.Max((int)(Xalign * (cell_area.Width - 2 * Xpad - progress_width)), 0));
/* second render the progress bar */
using (Cairo.Context cairo_context = Gdk.CairoHelper.Create(window)) {
width = progress_width;
height = progress_height;
cairo_context.Rectangle(x, y, width, height);
Gdk.CairoHelper.SetSourceColor(cairo_context, widget.Style.Dark(StateType.Normal));
cairo_context.Fill();
x += widget.Style.XThickness;
y += widget.Style.XThickness;
width -= 2 * widget.Style.XThickness;
height -= 2 * widget.Style.Ythickness;
cairo_context.Rectangle(x, y, width, height);
Gdk.CairoHelper.SetSourceColor(cairo_context, widget.Style.Light(StateType.Normal));
cairo_context.Fill();
/* scale the value and ensure, that at least one pixel is drawn, if the value is greater than zero */
int scaled_width =
(int)Math.Max(((progress_value * width) / 100.0),
(progress_value == 0)? 0 : 1);
cairo_context.Rectangle(x, y, scaled_width, height);
Gdk.CairoHelper.SetSourceColor(cairo_context, GetValueColor());
cairo_context.Fill();
}
}
protected override void Render(Gdk.Drawable window, Gtk.Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, Gtk.CellRendererState flags)
{
if (image.IsNull)
{
return;
}
var ctx = Gdk.CairoHelper.Create(window);
using (ctx) {
var pix = ((GtkImage)image.Backend);
pix.Draw(actx, ctx, Util.GetScaleFactor(widget), cell_area.X, cell_area.Y, image);
}
}
protected override void Render(Gdk.Drawable drawable, Gtk.Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, Gtk.CellRendererState flags)
{
if (_ImageRow && _pixbuf == null)
{
return;
}
Gdk.Rectangle pix_rect = Gdk.Rectangle.Zero;
this.GetSize(widget, ref cell_area, out pix_rect.X, out pix_rect.Y, out pix_rect.Width, out pix_rect.Height);
// Take care of padding
pix_rect.X += cell_area.X + (int)this.Xpad;
pix_rect.Y += cell_area.Y + (int)this.Ypad;
// Remove left, right, top and buttom borders which were added to the returned width
pix_rect.Width -= (int)this.Xpad * 2;
pix_rect.Height -= (int)this.Ypad * 2;
Cairo.Context context = Gdk.CairoHelper.Create(drawable);
context.Translate(pix_rect.X, pix_rect.Y);
if (_ImageRow)
{
RenderImage(context, pix_rect.Height);
}
else
{
RenderDoc(context, widget, pix_rect.Height);
}
(context as System.IDisposable).Dispose();
}
protected override void Render(Gdk.Drawable window, Gtk.Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, Gtk.CellRendererState flags)
{
Parent.StartDrawing(new Rectangle(background_area.X, background_area.Y, background_area.Width, background_area.Height), new Rectangle(cell_area.X, cell_area.Y, cell_area.Width, cell_area.Height), flags);
CellView.ApplicationContext.InvokeUserCode(delegate {
CairoContextBackend ctx = new CairoContextBackend(Util.GetScaleFactor(widget));
ctx.Context = Gdk.CairoHelper.Create(window);
using (ctx) {
CellView.Draw(ctx, new Rectangle(cell_area.X, cell_area.Y, cell_area.Width, cell_area.Height));
}
});
Parent.EndDrawing();
}
