Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Themes / Aero / Microsoft / Windows / Themes / DataGridHeaderBorder.cs / 1305600 / DataGridHeaderBorder.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.ComponentModel; using System.Diagnostics; using System.Windows; using System.Windows.Controls; using System.Windows.Media; namespace Microsoft.Windows.Themes { ////// A Border used to provide the default look of headers. /// When Background or BorderBrush are set, the rendering will /// revert back to the default Border implementation. /// public partial class DataGridHeaderBorder { #region Theme Rendering private Thickness? ThemeDefaultPadding { get { if (Orientation == Orientation.Vertical) { return new Thickness(5.0, 4.0, 5.0, 4.0); } return null; } } private void RenderTheme(DrawingContext dc) { Size size = RenderSize; bool horizontal = Orientation == Orientation.Horizontal; bool isClickable = IsClickable && IsEnabled; bool isHovered = isClickable && IsHovered; bool isPressed = isClickable && IsPressed; ListSortDirection? sortDirection = SortDirection; bool isSorted = sortDirection != null; bool isSelected = IsSelected; bool hasBevel = (!isHovered && !isPressed && !isSorted && !isSelected); EnsureCache((int)AeroFreezables.NumFreezables); if (horizontal) { // When horizontal, rotate the rendering by -90 degrees Matrix m1 = new Matrix(); m1.RotateAt(-90.0, 0.0, 0.0); Matrix m2 = new Matrix(); m2.Translate(0.0, size.Height); MatrixTransform horizontalRotate = new MatrixTransform(m1 * m2); horizontalRotate.Freeze(); dc.PushTransform(horizontalRotate); double temp = size.Width; size.Width = size.Height; size.Height = temp; } if (hasBevel) { // This is a highlight that can be drawn by just filling the background with the color. // It will be seen through the gab between the border and the background. LinearGradientBrush bevel = (LinearGradientBrush)GetCachedFreezable((int)AeroFreezables.NormalBevel); if (bevel == null) { bevel = new LinearGradientBrush(); bevel.StartPoint = new Point(); bevel.EndPoint = new Point(0.0, 1.0); bevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF), 0.0)); bevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF), 0.4)); bevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFC, 0xFC, 0xFD), 0.4)); bevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFB, 0xFC, 0xFC), 1.0)); bevel.Freeze(); CacheFreezable(bevel, (int)AeroFreezables.NormalBevel); } dc.DrawRectangle(bevel, null, new Rect(0.0, 0.0, size.Width, size.Height)); } // Fill the background AeroFreezables backgroundType = AeroFreezables.NormalBackground; if (isPressed) { backgroundType = AeroFreezables.PressedBackground; } else if (isHovered) { backgroundType = AeroFreezables.HoveredBackground; } else if (isSorted || isSelected) { backgroundType = AeroFreezables.SortedBackground; } LinearGradientBrush background = (LinearGradientBrush)GetCachedFreezable((int)backgroundType); if (background == null) { background = new LinearGradientBrush(); background.StartPoint = new Point(); background.EndPoint = new Point(0.0, 1.0); switch (backgroundType) { case AeroFreezables.NormalBackground: background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF), 0.0)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xF7, 0xF8, 0xFA), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xF1, 0xF2, 0xF4), 1.0)); break; case AeroFreezables.PressedBackground: background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xBC, 0xE4, 0xF9), 0.0)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xBC, 0xE4, 0xF9), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x8D, 0xD6, 0xF7), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x8A, 0xD1, 0xF5), 1.0)); break; case AeroFreezables.HoveredBackground: background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xE3, 0xF7, 0xFF), 0.0)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xE3, 0xF7, 0xFF), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xBD, 0xED, 0xFF), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xB7, 0xE7, 0xFB), 1.0)); break; case AeroFreezables.SortedBackground: background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xF2, 0xF9, 0xFC), 0.0)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xF2, 0xF9, 0xFC), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xE1, 0xF1, 0xF9), 0.4)); background.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xD8, 0xEC, 0xF6), 1.0)); break; } background.Freeze(); CacheFreezable(background, (int)backgroundType); } dc.DrawRectangle(background, null, new Rect(0.0, 0.0, size.Width, size.Height)); if (size.Width >= 2.0) { // Draw the borders on the sides AeroFreezables sideType = AeroFreezables.NormalSides; if (isPressed) { sideType = AeroFreezables.PressedSides; } else if (isHovered) { sideType = AeroFreezables.HoveredSides; } else if (isSorted || isSelected) { sideType = AeroFreezables.SortedSides; } if (SeparatorVisibility == Visibility.Visible) { Brush sideBrush; if (SeparatorBrush != null) { sideBrush = SeparatorBrush; } else { sideBrush = (Brush)GetCachedFreezable((int)sideType); if (sideBrush == null) { LinearGradientBrush lgBrush = null; if (sideType != AeroFreezables.SortedSides) { lgBrush = new LinearGradientBrush(); lgBrush.StartPoint = new Point(); lgBrush.EndPoint = new Point(0.0, 1.0); sideBrush = lgBrush; } switch (sideType) { case AeroFreezables.NormalSides: lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xF2, 0xF2, 0xF2), 0.0)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xEF, 0xEF, 0xEF), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xE7, 0xE8, 0xEA), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xDE, 0xDF, 0xE1), 1.0)); break; case AeroFreezables.PressedSides: lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x7A, 0x9E, 0xB1), 0.0)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x7A, 0x9E, 0xB1), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x50, 0x91, 0xAF), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x4D, 0x8D, 0xAD), 1.0)); break; case AeroFreezables.HoveredSides: lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x88, 0xCB, 0xEB), 0.0)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x88, 0xCB, 0xEB), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x69, 0xBB, 0xE3), 0.4)); lgBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x69, 0xBB, 0xE3), 1.0)); break; case AeroFreezables.SortedSides: sideBrush = new SolidColorBrush(Color.FromArgb(0xFF, 0x96, 0xD9, 0xF9)); break; } sideBrush.Freeze(); CacheFreezable(sideBrush, (int)sideType); } } dc.DrawRectangle(sideBrush, null, new Rect(0.0, 0.0, 1.0, Max0(size.Height - 0.95))); dc.DrawRectangle(sideBrush, null, new Rect(size.Width - 1.0, 0.0, 1.0, Max0(size.Height - 0.95))); } } if (isPressed && (size.Width >= 4.0) && (size.Height >= 4.0)) { // When pressed, there are added borders on the left and top LinearGradientBrush topBrush = (LinearGradientBrush)GetCachedFreezable((int)AeroFreezables.PressedTop); if (topBrush == null) { topBrush = new LinearGradientBrush(); topBrush.StartPoint = new Point(); topBrush.EndPoint = new Point(0.0, 1.0); topBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x86, 0xA3, 0xB2), 0.0)); topBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x86, 0xA3, 0xB2), 0.1)); topBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xAA, 0xCE, 0xE1), 0.9)); topBrush.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xAA, 0xCE, 0xE1), 1.0)); topBrush.Freeze(); CacheFreezable(topBrush, (int)AeroFreezables.PressedTop); } dc.DrawRectangle(topBrush, null, new Rect(0.0, 0.0, size.Width, 2.0)); LinearGradientBrush pressedBevel = (LinearGradientBrush)GetCachedFreezable((int)AeroFreezables.PressedBevel); if (pressedBevel == null) { pressedBevel = new LinearGradientBrush(); pressedBevel.StartPoint = new Point(); pressedBevel.EndPoint = new Point(0.0, 1.0); pressedBevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xA2, 0xCB, 0xE0), 0.0)); pressedBevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xA2, 0xCB, 0xE0), 0.4)); pressedBevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x72, 0xBC, 0xDF), 0.4)); pressedBevel.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x6E, 0xB8, 0xDC), 1.0)); pressedBevel.Freeze(); CacheFreezable(pressedBevel, (int)AeroFreezables.PressedBevel); } dc.DrawRectangle(pressedBevel, null, new Rect(1.0, 0.0, 1.0, size.Height - 0.95)); dc.DrawRectangle(pressedBevel, null, new Rect(size.Width - 2.0, 0.0, 1.0, size.Height - 0.95)); } if (size.Height >= 2.0) { // Draw the bottom border AeroFreezables bottomType = AeroFreezables.NormalBottom; if (isPressed) { bottomType = AeroFreezables.PressedOrHoveredBottom; } else if (isHovered) { bottomType = AeroFreezables.PressedOrHoveredBottom; } else if (isSorted || isSelected) { bottomType = AeroFreezables.SortedBottom; } SolidColorBrush bottomBrush = (SolidColorBrush)GetCachedFreezable((int)bottomType); if (bottomBrush == null) { switch (bottomType) { case AeroFreezables.NormalBottom: bottomBrush = new SolidColorBrush(Color.FromArgb(0xFF, 0xD5, 0xD5, 0xD5)); break; case AeroFreezables.PressedOrHoveredBottom: bottomBrush = new SolidColorBrush(Color.FromArgb(0xFF, 0x93, 0xC9, 0xE3)); break; case AeroFreezables.SortedBottom: bottomBrush = new SolidColorBrush(Color.FromArgb(0xFF, 0x96, 0xD9, 0xF9)); break; } bottomBrush.Freeze(); CacheFreezable(bottomBrush, (int)bottomType); } dc.DrawRectangle(bottomBrush, null, new Rect(0.0, size.Height - 1.0, size.Width, 1.0)); } if (isSorted && (size.Width > 14.0) && (size.Height > 10.0)) { // Draw the sort arrow TranslateTransform positionTransform = new TranslateTransform((size.Width - 8.0) * 0.5, 1.0); positionTransform.Freeze(); dc.PushTransform(positionTransform); bool ascending = (sortDirection == ListSortDirection.Ascending); PathGeometry arrowGeometry = (PathGeometry)GetCachedFreezable(ascending ? (int)AeroFreezables.ArrowUpGeometry : (int)AeroFreezables.ArrowDownGeometry); if (arrowGeometry == null) { arrowGeometry = new PathGeometry(); PathFigure arrowFigure = new PathFigure(); if (ascending) { arrowFigure.StartPoint = new Point(0.0, 4.0); LineSegment line = new LineSegment(new Point(4.0, 0.0), false); line.Freeze(); arrowFigure.Segments.Add(line); line = new LineSegment(new Point(8.0, 4.0), false); line.Freeze(); arrowFigure.Segments.Add(line); } else { arrowFigure.StartPoint = new Point(0.0, 0.0); LineSegment line = new LineSegment(new Point(8.0, 0.0), false); line.Freeze(); arrowFigure.Segments.Add(line); line = new LineSegment(new Point(4.0, 4.0), false); line.Freeze(); arrowFigure.Segments.Add(line); } arrowFigure.IsClosed = true; arrowFigure.Freeze(); arrowGeometry.Figures.Add(arrowFigure); arrowGeometry.Freeze(); CacheFreezable(arrowGeometry, ascending ? (int)AeroFreezables.ArrowUpGeometry : (int)AeroFreezables.ArrowDownGeometry); } // Draw two arrows, one inset in the other. This is to achieve a double gradient over both the border and the fill. LinearGradientBrush arrowBorder = (LinearGradientBrush)GetCachedFreezable((int)AeroFreezables.ArrowBorder); if (arrowBorder == null) { arrowBorder = new LinearGradientBrush(); arrowBorder.StartPoint = new Point(); arrowBorder.EndPoint = new Point(1.0, 1.0); arrowBorder.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x3C, 0x5E, 0x72), 0.0)); arrowBorder.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x3C, 0x5E, 0x72), 0.1)); arrowBorder.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xC3, 0xE4, 0xF5), 1.0)); arrowBorder.Freeze(); CacheFreezable(arrowBorder, (int)AeroFreezables.ArrowBorder); } dc.DrawGeometry(arrowBorder, null, arrowGeometry); LinearGradientBrush arrowFill = (LinearGradientBrush)GetCachedFreezable((int)AeroFreezables.ArrowFill); if (arrowFill == null) { arrowFill = new LinearGradientBrush(); arrowFill.StartPoint = new Point(); arrowFill.EndPoint = new Point(1.0, 1.0); arrowFill.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x61, 0x96, 0xB6), 0.0)); arrowFill.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0x61, 0x96, 0xB6), 0.1)); arrowFill.GradientStops.Add(new GradientStop(Color.FromArgb(0xFF, 0xCA, 0xE6, 0xF5), 1.0)); arrowFill.Freeze(); CacheFreezable(arrowFill, (int)AeroFreezables.ArrowFill); } // Inset the fill arrow inside the border arrow ScaleTransform arrowScale = (ScaleTransform)GetCachedFreezable((int)AeroFreezables.ArrowFillScale); if (arrowScale == null) { arrowScale = new ScaleTransform(0.75, 0.75, 3.5, 4.0); arrowScale.Freeze(); CacheFreezable(arrowScale, (int)AeroFreezables.ArrowFillScale); } dc.PushTransform(arrowScale); dc.DrawGeometry(arrowFill, null, arrowGeometry); dc.Pop(); // Scale Transform dc.Pop(); // Position Transform } if (horizontal) { dc.Pop(); // Horizontal Rotate } } private enum AeroFreezables : int { NormalBevel, NormalBackground, PressedBackground, HoveredBackground, SortedBackground, PressedTop, NormalSides, PressedSides, HoveredSides, SortedSides, PressedBevel, NormalBottom, PressedOrHoveredBottom, SortedBottom, ArrowBorder, ArrowFill, ArrowFillScale, ArrowUpGeometry, ArrowDownGeometry, NumFreezables } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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