Exemplo n.º 1
0
        /// <summary>
        /// Draws the vertical Y axis.
        /// </summary>
        internal override void Draw()
        {
            AxisRendererInfo yari = ((ChartRendererInfo)_rendererParms.RendererInfo).yAxisRendererInfo;

            double yMin       = yari.MinimumScale;
            double yMax       = yari.MaximumScale;
            double yMajorTick = yari.MajorTick;
            double yMinorTick = yari.MinorTick;

            XMatrix matrix = new XMatrix();

            matrix.TranslatePrepend(-yari.InnerRect.X, yMax);
            matrix.Scale(1, yari.InnerRect.Height / (yMax - yMin), XMatrixOrder.Append);
            matrix.ScalePrepend(1, -1); // mirror horizontal
            matrix.Translate(yari.InnerRect.X, yari.InnerRect.Y, XMatrixOrder.Append);

            // Draw axis.
            // First draw tick marks, second draw axis.
            double majorTickMarkStart = 0, majorTickMarkEnd = 0,
                   minorTickMarkStart = 0, minorTickMarkEnd = 0;

            GetTickMarkPos(yari, ref majorTickMarkStart, ref majorTickMarkEnd, ref minorTickMarkStart, ref minorTickMarkEnd);

            XGraphics          gfx                     = _rendererParms.Graphics;
            LineFormatRenderer lineFormatRenderer      = new LineFormatRenderer(gfx, yari.LineFormat);
            LineFormatRenderer minorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MinorTickMarkLineFormat);
            LineFormatRenderer majorTickMarkLineFormat = new LineFormatRenderer(gfx, yari.MajorTickMarkLineFormat);

            XPoint[] points = new XPoint[2];

            // Draw minor tick marks.
            if (yari.MinorTickMark != TickMarkType.None)
            {
                for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
                {
                    points[0].X = minorTickMarkStart;
                    points[0].Y = y;
                    points[1].X = minorTickMarkEnd;
                    points[1].Y = y;
                    matrix.TransformPoints(points);
                    minorTickMarkLineFormat.DrawLine(points[0], points[1]);
                }
            }

            double lineSpace = yari.TickLabelsFont.GetHeight(); // old: yari.TickLabelsFont.GetHeight(gfx);
            int    cellSpace = yari.TickLabelsFont.FontFamily.GetLineSpacing(yari.TickLabelsFont.Style);
            double xHeight   = yari.TickLabelsFont.Metrics.XHeight;

            XSize labelSize = new XSize(0, 0)
            {
                Height = lineSpace * xHeight / cellSpace
            };

            int countTickLabels = (int)((yMax - yMin) / yMajorTick) + 1;

            for (int i = 0; i < countTickLabels; ++i)
            {
                double y   = yMin + yMajorTick * i;
                string str = y.ToString(yari.TickLabelsFormat);

                labelSize.Width = gfx.MeasureString(str, yari.TickLabelsFont).Width;

                // Draw major tick marks.
                if (yari.MajorTickMark != TickMarkType.None)
                {
                    labelSize.Width += yari.MajorTickMarkWidth * 1.5;
                    points[0].X      = majorTickMarkStart;
                    points[0].Y      = y;
                    points[1].X      = majorTickMarkEnd;
                    points[1].Y      = y;
                    matrix.TransformPoints(points);
                    majorTickMarkLineFormat.DrawLine(points[0], points[1]);
                }
                else
                {
                    labelSize.Width += SpaceBetweenLabelAndTickmark;
                }

                // Draw label text.
                XPoint[] layoutText = new XPoint[1];
                layoutText[0].X = yari.InnerRect.X + yari.InnerRect.Width - labelSize.Width;
                layoutText[0].Y = y;
                matrix.TransformPoints(layoutText);
                layoutText[0].Y += labelSize.Height / 2; // Center text vertically.
                gfx.DrawString(str, yari.TickLabelsFont, yari.TickLabelsBrush, layoutText[0]);
            }

            // Draw axis.
            if (yari.LineFormat != null && yari.LineFormat.Width > 0)
            {
                points[0].X = yari.InnerRect.X + yari.InnerRect.Width;
                points[0].Y = yMin;
                points[1].X = yari.InnerRect.X + yari.InnerRect.Width;
                points[1].Y = yMax;
                matrix.TransformPoints(points);
                if (yari.MajorTickMark != TickMarkType.None)
                {
                    // yMax is at the upper side of the axis
                    points[1].Y -= yari.LineFormat.Width / 2;
                    points[0].Y += yari.LineFormat.Width / 2;
                }
                lineFormatRenderer.DrawLine(points[0], points[1]);
            }

            // Draw axis title
            if (yari._axisTitleRendererInfo != null && yari._axisTitleRendererInfo.AxisTitleText != "")
            {
                RendererParameters parms = new RendererParameters
                {
                    Graphics     = gfx,
                    RendererInfo = yari
                };
                double width = yari._axisTitleRendererInfo.Width;
                yari._axisTitleRendererInfo.Rect  = yari.InnerRect;
                yari._axisTitleRendererInfo.Width = width;
                AxisTitleRenderer atr = new AxisTitleRenderer(parms);
                atr.Draw();
            }
        }
        /// <summary>
        /// Draws the vertical Y axis.
        /// </summary>
        internal override void Draw()
        {
            AxisRendererInfo yari = ((ChartRendererInfo)_rendererParms.RendererInfo).yAxisRendererInfo;

            double yMin       = yari.MinimumScale;
            double yMax       = yari.MaximumScale;
            double yMajorTick = yari.MajorTick;
            double yMinorTick = yari.MinorTick;

            XMatrix matrix = new XMatrix();

            matrix.TranslatePrepend(-yMin, -yari.Y);
            matrix.Scale(yari.InnerRect.Width / (yMax - yMin), 1, XMatrixOrder.Append);
            matrix.Translate(yari.X, yari.Y, XMatrixOrder.Append);

            // Draw axis.
            // First draw tick marks, second draw axis.
            double majorTickMarkStart = 0, majorTickMarkEnd = 0,
                   minorTickMarkStart = 0, minorTickMarkEnd = 0;

            GetTickMarkPos(yari, ref majorTickMarkStart, ref majorTickMarkEnd, ref minorTickMarkStart, ref minorTickMarkEnd);

            XGraphics          gfx                = _rendererParms.Graphics;
            LineFormatRenderer lineFormatRenderer = new LineFormatRenderer(gfx, yari.LineFormat);

            XPoint[] points = new XPoint[2];
            if (yari.MinorTickMark != TickMarkType.None)
            {
                for (double y = yMin + yMinorTick; y < yMax; y += yMinorTick)
                {
                    points[0].X = y;
                    points[0].Y = minorTickMarkStart;
                    points[1].X = y;
                    points[1].Y = minorTickMarkEnd;
                    matrix.TransformPoints(points);
                    lineFormatRenderer.DrawLine(points[0], points[1]);
                }
            }

            XStringFormat xsf = new XStringFormat
            {
                LineAlignment = XLineAlignment.Near
            };
            int countTickLabels = (int)((yMax - yMin) / yMajorTick) + 1;

            for (int i = 0; i < countTickLabels; ++i)
            {
                double y   = yMin + yMajorTick * i;
                string str = y.ToString(yari.TickLabelsFormat);

                XSize labelSize = gfx.MeasureString(str, yari.TickLabelsFont);
                if (yari.MajorTickMark != TickMarkType.None)
                {
                    labelSize.Height += 1.5f * yari.MajorTickMarkWidth;
                    points[0].X       = y;
                    points[0].Y       = majorTickMarkStart;
                    points[1].X       = y;
                    points[1].Y       = majorTickMarkEnd;
                    matrix.TransformPoints(points);
                    lineFormatRenderer.DrawLine(points[0], points[1]);
                }

                XPoint[] layoutText = new XPoint[1];
                layoutText[0].X = y;
                layoutText[0].Y = yari.Y + 1.5 * yari.MajorTickMarkWidth;
                matrix.TransformPoints(layoutText);
                layoutText[0].X -= labelSize.Width / 2; // Center text vertically.
                gfx.DrawString(str, yari.TickLabelsFont, yari.TickLabelsBrush, layoutText[0], xsf);
            }

            if (yari.LineFormat != null)
            {
                points[0].X = yMin;
                points[0].Y = yari.Y;
                points[1].X = yMax;
                points[1].Y = yari.Y;
                matrix.TransformPoints(points);
                if (yari.MajorTickMark != TickMarkType.None)
                {
                    // yMax is at the upper side of the axis
                    points[0].X -= yari.LineFormat.Width / 2;
                    points[1].X += yari.LineFormat.Width / 2;
                }
                lineFormatRenderer.DrawLine(points[0], points[1]);
            }

            // Draw axis title
            if (yari._axisTitleRendererInfo != null)
            {
                RendererParameters parms = new RendererParameters
                {
                    Graphics     = gfx,
                    RendererInfo = yari
                };
                XRect rcTitle = yari.Rect;
                rcTitle.Height = yari._axisTitleRendererInfo.Height;
                rcTitle.Y     += yari.Rect.Height - rcTitle.Height;
                yari._axisTitleRendererInfo.Rect = rcTitle;
                AxisTitleRenderer atr = new AxisTitleRenderer(parms);
                atr.Draw();
            }
        }