コード例 #1
0
            /// <summary>
            /// Draws the specified item on the given graphics.
            /// </summary>
            /// <param name="g">The System.Drawing.Graphics to draw on.</param>
            /// <param name="item">The ImageListViewItem to draw.</param>
            /// <param name="state">The current view state of item.</param>
            /// <param name="bounds">The bounding rectangle of item in client coordinates.</param>
            public override void DrawItem(Graphics g, ImageListViewItem item, ItemState state, Rectangle bounds)
            {
                if (ImageListView.View == View.Details)
                {
                    bool alternate = (item.Index % 2 == 1);
                    List<ImageListView.ImageListViewColumnHeader> uicolumns = ImageListView.Columns.GetDisplayedColumns();

                    // Paint background
                    if ((state & ItemState.Disabled) != ItemState.None)
                    {
                        // Disabled
                        using (Brush bItemBack = new LinearGradientBrush(bounds, ImageListView.Colors.DisabledColor1,
                            ImageListView.Colors.DisabledColor2, LinearGradientMode.Vertical))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }
                    }
                    else if (ImageListView.Focused && ((state & ItemState.Selected) != ItemState.None))
                    {
                        // Focused and selected
                        using (Brush bItemBack = new LinearGradientBrush(bounds, ImageListView.Colors.SelectedColor1,
                            ImageListView.Colors.SelectedColor2, LinearGradientMode.Vertical))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }
                    }
                    else if (!ImageListView.Focused && ((state & ItemState.Selected) != ItemState.None))
                    {
                        // Not focused and selected
                        using (Brush bItemBack = new LinearGradientBrush(bounds, ImageListView.Colors.UnFocusedColor1,
                            ImageListView.Colors.UnFocusedColor2, LinearGradientMode.Vertical))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }
                    }
                    else
                    {
                        // Not selected
                        using (Brush bItemBack = new SolidBrush(alternate ?
                            ImageListView.Colors.AlternateBackColor : ImageListView.Colors.BackColor))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }

                        // Shade sort column
                        int x = bounds.Left - 1;
                        foreach (ImageListView.ImageListViewColumnHeader column in uicolumns)
                        {
                            if (ImageListView.SortOrder != SortOrder.None &&
                                ImageListView.SortColumn >= 0 && ImageListView.SortColumn < ImageListView.Columns.Count &&
                                ImageListView.Columns[ImageListView.SortColumn].Guid == column.Guid)
                            {
                                Rectangle subItemBounds = bounds;
                                subItemBounds.X = x;
                                subItemBounds.Width = column.Width;
                                using (Brush bSort = new SolidBrush(ImageListView.Colors.ColumnSelectColor))
                                {
                                    g.FillRectangle(bSort, subItemBounds);
                                }
                                break;
                            }
                            x += column.Width;
                        }

                    }

                    // Separators
                    int xs = bounds.Left - 1;
                    foreach (ImageListView.ImageListViewColumnHeader column in uicolumns)
                    {
                        xs += column.Width;
                        if (!ReferenceEquals(column, uicolumns[uicolumns.Count - 1]))
                        {
                            using (Pen pSep = new Pen(ImageListView.Colors.ColumnSeparatorColor))
                            {
                                g.DrawLine(pSep, xs, bounds.Top, xs, bounds.Bottom);
                            }
                        }
                    }

                    // Sub items
                    Color foreColor = ImageListView.Colors.CellForeColor;
                    if ((state & ItemState.Disabled) != ItemState.None)
                        foreColor = ImageListView.Colors.DisabledForeColor;
                    else if (ImageListView.Focused && (state & ItemState.Selected) != ItemState.None)
                        foreColor = ImageListView.Colors.SelectedForeColor;
                    else if (!ImageListView.Focused && (state & ItemState.Selected) != ItemState.None)
                        foreColor = ImageListView.Colors.UnFocusedForeColor;
                    else if (alternate)
                        foreColor = ImageListView.Colors.AlternateCellForeColor;

                    int offset = 2;
                    int firstWidth = 0;
                    if (uicolumns.Count > 0)
                        firstWidth = uicolumns[0].Width;
                    Rectangle rt = new Rectangle(bounds.Left + offset, bounds.Top, firstWidth - 2 * offset, bounds.Height);
                    foreach (ImageListView.ImageListViewColumnHeader column in uicolumns)
                    {
                        rt.Width = column.Width - 2 * offset;
                        int iconOffset = 0;
                        if (column.Type == ColumnType.Name)
                        {
                            // Allocate space for checkbox and file icon
                            if (ImageListView.ShowCheckBoxes && ImageListView.ShowFileIcons)
                                iconOffset += 2 * 16 + 3 * 2;
                            else if (ImageListView.ShowCheckBoxes)
                                iconOffset += 16 + 2 * 2;
                            else if (ImageListView.ShowFileIcons)
                                iconOffset += 16 + 2 * 2;
                        }
                        rt.X += iconOffset;
                        rt.Width -= iconOffset;
                        // Rating stars
                        if (column.Type == ColumnType.Rating && ImageListView.RatingImage != null && ImageListView.EmptyRatingImage != null)
                        {
                            int rating = item.GetSimpleRating();
                            if (rating > 0)
                            {
                                int w = ImageListView.RatingImage.Width;
                                int y = (int)(rt.Top + (rt.Height - ImageListView.RatingImage.Height) / 2.0f);

                                for (int i = 1; i <= 5; i++)
                                {
                                    if (rating >= i)
                                        g.DrawImage(ImageListView.RatingImage, rt.Left + (i - 1) * w, y);
                                    else
                                        g.DrawImage(ImageListView.EmptyRatingImage, rt.Left + (i - 1) * w, y);
                                }
                            }
                        }
                        else if (column.Type == ColumnType.Custom)
                            TextRenderer.DrawText(g, item.GetSubItemText(column.Guid), ImageListView.Font, rt, foreColor,
                                TextFormatFlags.EndEllipsis | TextFormatFlags.VerticalCenter | TextFormatFlags.PreserveGraphicsClipping);
                        else
                            TextRenderer.DrawText(g, item.GetSubItemText(column.Type), ImageListView.Font, rt, foreColor,
                                TextFormatFlags.EndEllipsis | TextFormatFlags.VerticalCenter | TextFormatFlags.PreserveGraphicsClipping);

                        rt.X -= iconOffset;
                        rt.X += column.Width;
                    }

                    // Focus rectangle
                    if (ImageListView.Focused && ((state & ItemState.Focused) != ItemState.None))
                        ControlPaint.DrawFocusRectangle(g, bounds);
                }
                else // if (ImageListView.View != View.Details)
                {
                    // Paint background
                    if (ImageListView.Enabled)
                    {
                        using (Brush bItemBack = new SolidBrush(ImageListView.Colors.BackColor))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }
                    }
                    else
                    {
                        using (Brush bItemBack = new SolidBrush(ImageListView.Colors.DisabledBackColor))
                        {
                            g.FillRectangle(bItemBack, bounds);
                        }
                    }

                    // Get thumbnail
                    Image img = item.GetCachedImage(CachedImageType.Thumbnail);

                    // Reference text height
                    int textHeight = ImageListView.Font.Height;

                    // Calculate bounds
                    Rectangle textBounds = new Rectangle(bounds.Left + 3, bounds.Bottom - (textHeight + 3), bounds.Width - 2 * 3, textHeight);
                    Rectangle imgBounds;
                    if (img != null)
                        imgBounds = new Rectangle(bounds.Left + (bounds.Width - img.Width) / 2,
                            bounds.Bottom - (img.Height + textHeight + 3 * 3), img.Width, img.Height);
                    else
                        imgBounds = new Rectangle(bounds.Left + 3, bounds.Top + 3, ImageListView.ThumbnailSize.Width, ImageListView.ThumbnailSize.Height);
                    Rectangle textOutline = Rectangle.Inflate(textBounds, 3, 3);
                    Rectangle imgOutline = Rectangle.Inflate(imgBounds, 3, 3);
                    textOutline.Width -= 1;
                    textOutline.Height -= 1;

                    // Paint background
                    if ((((state & ItemState.Disabled) != ItemState.None)))
                    {
                        // Disabled
                        using (Brush bBack = new SolidBrush(ImageListView.Colors.DisabledColor1))
                        {
                            Utility.FillRoundedRectangle(g, bBack, textOutline, 4);
                            Utility.FillRoundedRectangle(g, bBack, imgOutline, 4);
                        }
                    }
                    else if ((ImageListView.Focused && ((state & ItemState.Selected) != ItemState.None)))
                    {
                        // Focused and selected
                        using (Brush bBack = new SolidBrush(ImageListView.Colors.SelectedColor1))
                        {
                            Utility.FillRoundedRectangle(g, bBack, textOutline, 4);
                            Utility.FillRoundedRectangle(g, bBack, imgOutline, 4);
                        }
                    }
                    else if ((!ImageListView.Focused && ((state & ItemState.Selected) != ItemState.None)))
                    {
                        // Not focused and selected
                        using (Brush bBack = new SolidBrush(ImageListView.Colors.UnFocusedColor1))
                        {
                            Utility.FillRoundedRectangle(g, bBack, textOutline, 4);
                            Utility.FillRoundedRectangle(g, bBack, imgOutline, 4);
                        }
                    }

                    // Draw image
                    if (img != null)
                    {
                        g.DrawImage(img, imgBounds.Location);
                    }

                    // Image border
                    using (Pen pBorder = new Pen(ImageListView.Colors.BorderColor))
                    {
                        Utility.DrawRoundedRectangle(g, pBorder, imgOutline.Left, imgOutline.Top, imgOutline.Width - 1, imgOutline.Height - 1, 3);
                    }

                    // Hovered state
                    if ((state & ItemState.Hovered) != ItemState.None)
                    {
                        using (Brush bGlow = new SolidBrush(Color.FromArgb(24, Color.White)))
                        {
                            Utility.FillRoundedRectangle(g, bGlow, imgOutline, 4);
                        }
                    }

                    // Item text
                    Color foreColor = ImageListView.Colors.ForeColor;
                    if ((state & ItemState.Disabled) != ItemState.None)
                        foreColor = ImageListView.Colors.DisabledForeColor;
                    else if (ImageListView.Focused && (state & ItemState.Selected) != ItemState.None)
                        foreColor = ImageListView.Colors.SelectedForeColor;
                    else if (!ImageListView.Focused && (state & ItemState.Selected) != ItemState.None)
                        foreColor = ImageListView.Colors.UnFocusedForeColor;
                    TextRenderer.DrawText(g, item.Text, ImageListView.Font, textBounds, foreColor,
                        TextFormatFlags.EndEllipsis | TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.PreserveGraphicsClipping);

                    // Focus rectangle
                    if (ImageListView.Focused && ((state & ItemState.Focused) != ItemState.None))
                    {
                        textOutline.Offset(1, 1);
                        textOutline.Width -= 1;
                        textOutline.Height -= 1;
                        ControlPaint.DrawFocusRectangle(g, textOutline);
                    }
                }
            }
コード例 #2
0
            /// <summary>
            /// Draws the specified item on the given graphics.
            /// </summary>
            /// <param name="g">The System.Drawing.Graphics to draw on.</param>
            /// <param name="item">The ImageListViewItem to draw.</param>
            /// <param name="state">The current view state of item.</param>
            /// <param name="bounds">The bounding rectangle of item in client coordinates.</param>
            public override void DrawItem(Graphics g, ImageListViewItem item, ItemState state, Rectangle bounds)
            {
                VisualStyleRenderer rBack;

                if (!ImageListView.Enabled)
                    rBack = rItemSelectedHidden;
                if (((state & ItemState.Disabled) != ItemState.None))
                    rBack = rItemDisabled;
                else if (!ImageListView.Focused && ((state & ItemState.Selected) != ItemState.None))
                    rBack = rItemSelectedHidden;
                else if (((state & ItemState.Selected) != ItemState.None) && ((state & ItemState.Hovered) != ItemState.None))
                    rBack = rItemHoveredSelected;
                else if ((state & ItemState.Selected) != ItemState.None)
                    rBack = rItemSelected;
                else if ((state & ItemState.Hovered) != ItemState.None)
                    rBack = rItemHovered;
                else
                    rBack = rItemNormal;

                if (VisualStylesEnabled && rBack != null)
                {
                    // Do not draw the background of normal items
                    if (((state & ItemState.Hovered) != ItemState.None) || ((state & ItemState.Selected) != ItemState.None))
                        rBack.DrawBackground(g, bounds, bounds);

                    Size itemPadding = new Size(7, 7);

                    // Draw the image
                    if (ImageListView.View != View.Details)
                    {
                        Image img = item.GetCachedImage(CachedImageType.Thumbnail);
                        if (img != null)
                        {
                            Rectangle pos = Utility.GetSizedImageBounds(img, new Rectangle(bounds.Location + itemPadding, ImageListView.ThumbnailSize));
                            // Image background
                            Rectangle imgback = pos;
                            imgback.Inflate(3, 3);
                            g.FillRectangle(SystemBrushes.Window, imgback);
                            // Image border
                            if (img.Width > 32 && img.Height > 32)
                            {
                                using (Pen pen = new Pen(Color.FromArgb(224, 224, 244)))
                                {
                                    g.DrawRectangle(pen, imgback.X, imgback.Y, imgback.Width - 1, imgback.Height - 1);
                                }
                            }
                            // Image
                            g.DrawImage(img, pos);
                        }

                        // Draw item text
                        Color foreColor = SystemColors.ControlText;
                        if ((state & ItemState.Disabled) != ItemState.None)
                            foreColor = SystemColors.GrayText;
                        Size szt = TextRenderer.MeasureText(item.Text, ImageListView.Font);
                        Rectangle rt = new Rectangle(
                            bounds.Left + itemPadding.Width, bounds.Top + 2 * itemPadding.Height + ImageListView.ThumbnailSize.Height,
                            ImageListView.ThumbnailSize.Width, szt.Height);
                        TextRenderer.DrawText(g, item.Text, ImageListView.Font, rt, foreColor,
                            TextFormatFlags.EndEllipsis | TextFormatFlags.HorizontalCenter | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine | TextFormatFlags.PreserveGraphicsClipping);
                    }
                    else // if (ImageListView.View == View.Details)
                    {
                        List<ImageListView.ImageListViewColumnHeader> uicolumns = ImageListView.Columns.GetDisplayedColumns();

                        // Separators
                        int x = bounds.Left - 2;
                        foreach (ImageListView.ImageListViewColumnHeader column in uicolumns)
                        {
                            x += column.Width;
                            if (!ReferenceEquals(column, uicolumns[uicolumns.Count - 1]))
                            {
                                using (Pen pGray32 = new Pen(Color.FromArgb(32, 128, 128, 128)))
                                {
                                    g.DrawLine(pGray32, x, bounds.Top, x, bounds.Bottom);
                                }
                            }
                        }
                        Size offset = new Size(2, (bounds.Height - ImageListView.Font.Height) / 2);
                        // Sub text
                        int firstWidth = 0;
                        if (uicolumns.Count > 0)
                            firstWidth = uicolumns[0].Width;
                        Rectangle rt = new Rectangle(bounds.Left + offset.Width, bounds.Top + offset.Height, firstWidth - 2 * offset.Width, bounds.Height - 2 * offset.Height);
                        Color foreColor = SystemColors.ControlText;
                        if ((state & ItemState.Disabled) != ItemState.None)
                            foreColor = SystemColors.GrayText;
                        foreach (ImageListView.ImageListViewColumnHeader column in uicolumns)
                        {
                            rt.Width = column.Width - 2 * offset.Width;
                            using (Brush bItemFore = new SolidBrush(SystemColors.ControlText))
                            {
                                int iconOffset = 0;
                                if (column.Type == ColumnType.Name)
                                {
                                    // Allocate space for checkbox and file icon
                                    if (ImageListView.ShowCheckBoxes && ImageListView.ShowFileIcons)
                                        iconOffset += 2 * 16 + 3 * 2;
                                    else if (ImageListView.ShowCheckBoxes)
                                        iconOffset += 16 + 2 * 2;
                                    else if (ImageListView.ShowFileIcons)
                                        iconOffset += 16 + 2 * 2;
                                }
                                rt.X += iconOffset;
                                rt.Width -= iconOffset;
                                // Rating stars
                                if (column.Type == ColumnType.Rating && ImageListView.RatingImage != null && ImageListView.EmptyRatingImage != null)
                                {
                                    int rating = item.GetSimpleRating();
                                    if (rating > 0)
                                    {
                                        int w = ImageListView.RatingImage.Width;
                                        int y = (int)(rt.Top + (rt.Height - ImageListView.RatingImage.Height) / 2.0f);

                                        for (int i = 1; i <= 5; i++)
                                        {
                                            if (rating >= i)
                                                g.DrawImage(ImageListView.RatingImage, rt.Left + (i - 1) * w, y);
                                            else
                                                g.DrawImage(ImageListView.EmptyRatingImage, rt.Left + (i - 1) * w, y);
                                        }
                                    }
                                }
                                else if (column.Type == ColumnType.Custom)
                                    TextRenderer.DrawText(g, item.GetSubItemText(column.Guid), ImageListView.Font, rt, foreColor,
                                        TextFormatFlags.EndEllipsis | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine | TextFormatFlags.PreserveGraphicsClipping);
                                else
                                    TextRenderer.DrawText(g, item.GetSubItemText(column.Type), ImageListView.Font, rt, foreColor,
                                        TextFormatFlags.EndEllipsis | TextFormatFlags.VerticalCenter | TextFormatFlags.SingleLine | TextFormatFlags.PreserveGraphicsClipping);

                                rt.X -= iconOffset;
                            }
                            rt.X += column.Width;
                        }
                    }

                    // Focus rectangle
                    if (ImageListView.Focused && ((state & ItemState.Focused) != ItemState.None))
                    {
                        Rectangle focusBounds = bounds;
                        focusBounds.Inflate(-2, -2);
                        ControlPaint.DrawFocusRectangle(g, focusBounds);
                    }

                }
                else
                    base.DrawItem(g, item, state, bounds);
            }