DotNet 4.8.1 build of DotNetBar
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328
PROMS/DotNetBar Source Code/AdvTree/Display/CellDisplay.cs
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328
PROMS/DotNetBar Source Code/AdvTree/Display/CellDisplay.cs
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using System;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using DevComponents.DotNetBar;
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using DevComponents.DotNetBar.Rendering;
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namespace DevComponents.AdvTree.Display
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{
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/// <summary>
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/// Represents cell display class.
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/// </summary>
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internal class CellDisplay
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{
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public CellDisplay()
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{
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}
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private static Office2007CheckBoxItemPainter _CheckBoxPainter;
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public static Office2007CheckBoxItemPainter CheckBoxPainter
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{
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get { return _CheckBoxPainter; }
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set { _CheckBoxPainter = value; }
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}
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public static Office2007CheckBoxColorTable ColorTable = null;
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public static void PaintCell(NodeCellRendererEventArgs ci)
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{
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if(ci.Cell.CheckBoxVisible)
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CellDisplay.PaintCellCheckBox(ci);
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if(!ci.Cell.Images.LargestImageSize.IsEmpty)
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CellDisplay.PaintCellImage(ci);
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CellDisplay.PaintText(ci);
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}
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public static void PaintCellCheckBox(NodeCellRendererEventArgs ci)
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{
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if(!ci.Cell.CheckBoxVisible)
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return;
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Cell cell = ci.Cell;
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Rectangle r = cell.CheckBoxBoundsRelative;
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r.Offset(ci.CellOffset);
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if (ci.CheckBoxImageChecked != null)
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{
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Image img = ci.CheckBoxImageChecked;
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if (cell.CheckState == System.Windows.Forms.CheckState.Unchecked)
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img = ci.CheckBoxImageUnChecked;
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else if (cell.CheckState == System.Windows.Forms.CheckState.Indeterminate)
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img = ci.CheckBoxImageIndeterminate;
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if (img != null)
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ci.Graphics.DrawImage(img, r);
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}
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else if (_CheckBoxPainter != null)
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{
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Office2007CheckBoxStateColorTable ct = GetCheckBoxStateColorTable(ci);
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if (cell.CheckBoxStyle == eCheckBoxStyle.CheckBox)
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{
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_CheckBoxPainter.PaintCheckBox(ci.Graphics, r, ct, cell.CheckState);
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}
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else
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{
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_CheckBoxPainter.PaintRadioButton(ci.Graphics, r, ct, cell.Checked);
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}
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}
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else
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{
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System.Windows.Forms.ButtonState state = System.Windows.Forms.ButtonState.Normal;
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if (ci.Cell.Checked)
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state = System.Windows.Forms.ButtonState.Checked;
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System.Windows.Forms.ControlPaint.DrawCheckBox(ci.Graphics, r, state);
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}
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}
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private static Office2007CheckBoxStateColorTable GetCheckBoxStateColorTable(NodeCellRendererEventArgs e)
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{
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Cell cell = e.Cell;
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if (ColorTable != null && BarFunctions.IsOffice2007Style(e.ColorScheme.Style))
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{
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Office2007CheckBoxColorTable ct = ColorTable;
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if (!cell.GetEnabled())
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return ct.Disabled;
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//else if (cell.IsMouseDown)
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// return ct.Pressed;
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//else if (cell.IsMouseOver)
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// return ct.MouseOver;
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return ct.Default;
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}
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else
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{
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ColorScheme cs = e.ColorScheme;
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// Create color table based on the ColorScheme object...
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Office2007CheckBoxStateColorTable ct = new Office2007CheckBoxStateColorTable();
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if (!cell.GetEnabled())
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{
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ct.CheckBackground = new LinearGradientColorTable(cs.MenuBackground, Color.Empty);
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ct.CheckBorder = cs.ItemDisabledText;
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ct.CheckInnerBorder = cs.ItemDisabledText;
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ct.CheckInnerBackground = new LinearGradientColorTable();
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ct.CheckSign = new LinearGradientColorTable(cs.ItemDisabledText, Color.Empty);
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ct.Text = cs.ItemDisabledText;
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}
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//else if (cell.IsMouseDown)
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//{
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// ct.CheckBackground = new LinearGradientColorTable(cs.MenuBackground, Color.Empty);
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// ct.CheckBorder = cs.ItemPressedBorder;
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// ct.CheckInnerBorder = cs.ItemPressedBorder;
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// ct.CheckInnerBackground = new LinearGradientColorTable(cs.ItemPressedBackground, cs.ItemPressedBackground2);
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// ct.CheckSign = new LinearGradientColorTable(cs.ItemPressedText, Color.Empty);
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// ct.Text = cs.ItemPressedText;
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//}
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//else if (cell.IsMouseOver)
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//{
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// ct.CheckBackground = new LinearGradientColorTable(cs.MenuBackground, Color.Empty);
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// ct.CheckBorder = cs.ItemHotBorder;
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// ct.CheckInnerBorder = cs.ItemHotBorder;
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// ct.CheckInnerBackground = new LinearGradientColorTable(cs.ItemHotBackground, cs.ItemHotBackground2);
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// ct.CheckSign = new LinearGradientColorTable(cs.ItemHotText, Color.Empty);
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// ct.Text = cs.ItemHotText;
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//}
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else
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{
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ct.CheckBackground = new LinearGradientColorTable(cs.MenuBackground, Color.Empty);
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ct.CheckBorder = cs.PanelBorder;
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ct.CheckInnerBorder = ColorBlendFactory.SoftLight(cs.PanelBorder, Color.White);
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ct.CheckInnerBackground = new LinearGradientColorTable(cs.MenuBackground, Color.Empty);
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ct.CheckSign = new LinearGradientColorTable(cs.ItemText, Color.Empty);
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ct.Text = cs.ItemText;
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}
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return ct;
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}
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}
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public static void PaintCellImage(NodeCellRendererEventArgs ci)
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{
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if(ci.Cell.Images.LargestImageSize.IsEmpty)
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return;
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Rectangle r=ci.Cell.ImageBoundsRelative;
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r.Offset(ci.CellOffset);
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Image image = CellDisplay.GetCellImage(ci.Cell);
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if(image!=null)
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{
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Size imageSize = Dpi.ImageSize(image.Size);
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ci.Graphics.DrawImage(image, r.X + (r.Width - imageSize.Width) / 2,
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r.Y + (r.Height - imageSize.Height) / 2, imageSize.Width, imageSize.Height);
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}
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}
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public static void PaintText(NodeCellRendererEventArgs ci)
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{
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Cell cell = ci.Cell;
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if (cell.HostedControl == null && cell.HostedItem == null && (cell.DisplayText == "" || ci.Style.TextColor.IsEmpty) || cell.TextContentBounds.IsEmpty)
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return;
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Rectangle bounds = ci.Cell.TextContentBounds;
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bounds.Offset(ci.CellOffset);
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Graphics g = ci.Graphics;
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if (cell.HostedControl != null)
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{
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if (!cell.HostedControl.Visible)
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cell.HostedControl.Visible = true;
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return;
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}
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else if (cell.HostedItem != null)
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{
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BaseItem item = cell.HostedItem;
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if (item.ItemAlignment == eItemAlignment.Near)
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item.LeftInternal = bounds.X;
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else if (item.ItemAlignment == eItemAlignment.Far)
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item.LeftInternal = bounds.X + (bounds.Width - item.WidthInternal);
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else if (item.ItemAlignment == eItemAlignment.Center)
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item.LeftInternal = bounds.X + (bounds.Width - item.WidthInternal) / 2;
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if (item.DisplayRectangle.Height < bounds.Height)
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item.TopInternal = bounds.Y + (bounds.Height - item.DisplayRectangle.Height) / 2;
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else
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item.TopInternal = bounds.Y;
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item.Displayed = true;
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Region oldClip = g.Clip;
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Rectangle cb = bounds;
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cb.Inflate(2, 1);
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g.SetClip(cb, CombineMode.Intersect);
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item.Paint(ci.ItemPaintArgs);
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if (oldClip != null)
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{
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g.Clip = oldClip;
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oldClip.Dispose();
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}
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return;
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}
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Font font = ci.Style.Font;
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if (bounds.Width > 1 && bounds.Height > 1)
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{
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//eTextFormat textFormat = ci.Style.TextFormat;
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//textFormat = textFormat & ~(textFormat & eTextFormat.HidePrefix);
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//textFormat |= eTextFormat.NoPrefix;
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if (cell.TextMarkupBody == null)
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{
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TextDrawing.DrawString(g, cell.DisplayText, font, ci.Style.TextColor, bounds, ci.Style.TextFormat);
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}
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else
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{
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DevComponents.DotNetBar.TextMarkup.MarkupDrawContext d = new DevComponents.DotNetBar.TextMarkup.MarkupDrawContext(g, font, ci.Style.TextColor, false);
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d.HotKeyPrefixVisible = !((ci.Style.TextFormat & eTextFormat.HidePrefix) == eTextFormat.HidePrefix);
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Rectangle mr = Rectangle.Empty;
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eStyleTextAlignment lineAlignment = ci.Style.TextLineAlignment;
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if (lineAlignment == eStyleTextAlignment.Center)
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{
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mr = new Rectangle(bounds.X, bounds.Y + (bounds.Height - cell.TextMarkupBody.Bounds.Height) / 2, cell.TextMarkupBody.Bounds.Width, cell.TextMarkupBody.Bounds.Height);
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}
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else if (lineAlignment == eStyleTextAlignment.Near)
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{
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mr = new Rectangle(bounds.X, bounds.Y, cell.TextMarkupBody.Bounds.Width, cell.TextMarkupBody.Bounds.Height);
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}
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else // Far
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{
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mr = new Rectangle(bounds.X, bounds.Y + (bounds.Height - cell.TextMarkupBody.Bounds.Height), cell.TextMarkupBody.Bounds.Width, cell.TextMarkupBody.Bounds.Height);
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}
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cell.TextMarkupBody.Bounds = mr;
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cell.TextMarkupBody.Render(d);
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}
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}
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}
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private static Image GetCellImage(Cell cell)
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{
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Image img=cell.Images.Image;
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bool enabled = cell.GetEnabled();
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if (!enabled && (cell.Images.ImageDisabled != null || cell.Images.ImageDisabledIndex >= 0 || cell.Images.DisabledImageGenerated != null))
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{
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if (cell.Images.DisabledImageGenerated != null) return cell.Images.DisabledImageGenerated;
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if (cell.Images.ImageDisabled != null) return cell.Images.ImageDisabled;
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if (cell.Images.ImageDisabledIndex >= 0) return cell.Images.GetImageByIndex(cell.Images.ImageDisabledIndex);
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}
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if(img == null && !string.IsNullOrEmpty(cell.Images.ImageKey))
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img = cell.Images.GetImageByKey(cell.Images.ImageKey);
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if (img == null && cell.Images.ImageIndex >= 0)
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img = cell.Images.GetImageByIndex(cell.Images.ImageIndex);
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if (!enabled && img is Bitmap)
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{
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cell.Images.DisposeGeneratedDisabledImage();
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cell.Images.DisabledImageGenerated = ImageHelper.CreateGrayScaleImage(img as Bitmap);
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if (cell.Images.DisabledImageGenerated != null) return cell.Images.DisabledImageGenerated;
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return img;
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}
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if(cell.IsMouseOver && (cell.Images.ImageMouseOver!=null || cell.Images.ImageMouseOverIndex>= 0 || !string.IsNullOrEmpty(cell.Images.ImageMouseOverKey)))
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{
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if (cell.Images.ImageMouseOver != null)
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img = cell.Images.ImageMouseOver;
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else if (cell.Images.ImageMouseOverIndex >= 0)
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img = cell.Images.GetImageByIndex(cell.Images.ImageMouseOverIndex);
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else
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img = cell.Images.GetImageByKey(cell.Images.ImageMouseOverKey);
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}
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else if(cell.Parent.Expanded && (cell.Images.ImageExpanded!=null || cell.Images.ImageExpandedIndex>= 0 || !string.IsNullOrEmpty(cell.Images.ImageExpandedKey)))
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{
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if (cell.Images.ImageExpanded != null)
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img = cell.Images.ImageExpanded;
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else if (cell.Images.ImageExpandedIndex >= 0)
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img = cell.Images.GetImageByIndex(cell.Images.ImageExpandedIndex);
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else
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img = cell.Images.GetImageByKey(cell.Images.ImageExpandedKey);
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}
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return img;
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}
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public static Font GetCellFont(AdvTree tree, Cell cell)
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{
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Font font=tree.Font;
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ElementStyle style=null;
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if(cell.StyleNormal!=null)
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{
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style=cell.StyleNormal;
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}
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else
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{
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if(tree.NodeStyle!=null)
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style=tree.NodeStyle;
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else
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style=new ElementStyle();
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if(tree.CellStyleDefault!=null)
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style=tree.CellStyleDefault;
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else
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style=ElementStyle.GetDefaultCellStyle(style);
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}
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if(style!=null && style.Font!=null)
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font=style.Font;
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return font;
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}
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}
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/// <summary>
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/// Represents information necessary to paint the cell on canvas.
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/// </summary>
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internal class CellDisplayInfo
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{
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public ElementStyle Style=null;
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public System.Drawing.Graphics Graphics=null;
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public Cell ContextCell=null;
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public Point CellOffset=Point.Empty;
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public CellDisplayInfo()
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{
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}
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public CellDisplayInfo(ElementStyle style, System.Drawing.Graphics g, Cell cell, Point cellOffset)
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{
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this.Style=style;
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this.Graphics=g;
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this.ContextCell=cell;
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this.CellOffset=cellOffset;
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}
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}
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}
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