Esempio n. 1
0
        public void DrawString(Color color, FontConfig font, int x, int y, string text)
        {
            x -= origin.X;
            y -= origin.Y;

            var xftColorPtr = Marshal.AllocHGlobal(Marshal.SizeOf <XftColor>());

            try
            {
                XRenderColor xColor = new XRenderColor(color);
                LibXft.XftColorAllocValue(
                    display,
                    visual,
                    colormap,
                    ref xColor,
                    xftColorPtr
                    );

                try
                {
                    XftFontExt fontExt  = objectCache.GetXftFont(font);
                    var        fontInfo = Marshal.PtrToStructure <XftFont>(fontExt.MainFont);

                    int xOffset = DrawString(xftDraw, xftColorPtr, fontExt, x, y + fontInfo.ascent, text);

                    if (font.IsUnderline)
                    {
                        int lineHeight = Convert.ToInt32(Math.Max(font.Size / 10, 1));
                        LibXRender.XRenderFillRectangle(
                            display, PictOp.PictOpOver, pictureId, ref xColor,
                            x,
                            y + fontInfo.ascent + (fontInfo.descent - lineHeight) / 2,
                            (uint)xOffset,
                            (uint)lineHeight
                            );
                    }

                    if (font.IsStrikeout)
                    {
                        int lineHeight = Convert.ToInt32(Math.Max(font.Size / 20, 1));
                        LibXRender.XRenderFillRectangle
                        (
                            display, PictOp.PictOpOver, pictureId, ref xColor,
                            x,
                            y + fontInfo.ascent - (2 * fontInfo.ascent + 3 * lineHeight) / 6,
                            (uint)xOffset,
                            (uint)lineHeight
                        );
                    }
                }
                finally
                {
                    LibXft.XftColorFree(display, visual, colormap, xftColorPtr);
                }
            }
            finally
            {
                Marshal.FreeHGlobal(xftColorPtr);
            }
        }
Esempio n. 2
0
        public void FillRectangle(Color color, int x, int y, int width, int height)
        {
            // todo: <= 0 instead?
            if (width < 0 || height < 0)
            {
                return;
            }

            x -= origin.X;
            y -= origin.Y;

            XRenderColor xColor = new XRenderColor(color);

            LibXRender.XRenderFillRectangle(display, PictOp.PictOpOver, pictureId, ref xColor, x, y, (uint)width, (uint)height);
        }