/// <summary>
/// Pixel accurate measure of the specified string when drawn with the specified Font object.
/// </summary>
/// <param name="g">Graphics instance used to measure text.</param>
/// <param name="rtl">Right to left setting for control.</param>
/// <param name="text">String to measure.</param>
/// <param name="font">Font object that defines the text format of the string.</param>
/// <param name="trim">How to trim excess text.</param>
/// <param name="align">How to align multi-line text.</param>
/// <param name="prefix">How to process prefix characters.</param>
/// <param name="hint">Rendering hint.</param>
/// <param name="composition">Should draw on a composition element.</param>
/// <param name="glowing">When on composition draw with glowing.</param>
/// <param name="disposeFont">Dispose of font when finished with it.</param>
/// <exception cref="ArgumentNullException"></exception>
/// <returns>A memento used to draw the text.</returns>
public static AccurateTextMemento MeasureString(Graphics g,
RightToLeft rtl,
string text,
Font font,
PaletteTextTrim trim,
PaletteRelativeAlign align,
PaletteTextHotkeyPrefix prefix,
TextRenderingHint hint,
bool composition,
bool glowing,
bool disposeFont)
{
Debug.Assert(g != null);
Debug.Assert(text != null);
Debug.Assert(font != null);
if (g == null)
{
throw new ArgumentNullException(nameof(g));
}
if (text == null)
{
throw new ArgumentNullException(nameof(text));
}
if (font == null)
{
throw new ArgumentNullException(nameof(font));
}
// An empty string cannot be drawn, so uses the empty memento
if (text.Length == 0)
{
return(AccurateTextMemento.Empty);
}
// Create the format object used when measuring and drawing
StringFormat format = new StringFormat {
FormatFlags = StringFormatFlags.NoClip
};
// Ensure that text reflects reversed RTL setting
if (rtl == RightToLeft.Yes)
{
format.FormatFlags |= StringFormatFlags.DirectionRightToLeft;
}
// How do we position text horizontally?
switch (align)
{
case PaletteRelativeAlign.Near:
format.Alignment = (rtl == RightToLeft.Yes) ? StringAlignment.Far : StringAlignment.Near;
break;
case PaletteRelativeAlign.Center:
format.Alignment = StringAlignment.Center;
break;
case PaletteRelativeAlign.Far:
format.Alignment = (rtl == RightToLeft.Yes) ? StringAlignment.Near : StringAlignment.Far;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Do we need to trim text that is too big?
switch (trim)
{
case PaletteTextTrim.Character:
format.Trimming = StringTrimming.Character;
break;
case PaletteTextTrim.EllipsisCharacter:
format.Trimming = StringTrimming.EllipsisCharacter;
break;
case PaletteTextTrim.EllipsisPath:
format.Trimming = StringTrimming.EllipsisPath;
break;
case PaletteTextTrim.EllipsisWord:
format.Trimming = StringTrimming.EllipsisWord;
break;
case PaletteTextTrim.Word:
format.Trimming = StringTrimming.Word;
break;
case PaletteTextTrim.Hide:
format.Trimming = StringTrimming.None;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Setup the correct prefix processing
switch (prefix)
{
case PaletteTextHotkeyPrefix.None:
format.HotkeyPrefix = HotkeyPrefix.None;
break;
case PaletteTextHotkeyPrefix.Hide:
format.HotkeyPrefix = HotkeyPrefix.Hide;
break;
case PaletteTextHotkeyPrefix.Show:
format.HotkeyPrefix = HotkeyPrefix.Show;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Replace tab characters with a fixed four spaces
text = text.Replace("\t", " ");
// Perform actual measure of the text
using (GraphicsTextHint graphicsHint = new GraphicsTextHint(g, hint))
{
SizeF textSize = Size.Empty;
try
{
textSize = g.MeasureString(text, font, int.MaxValue, format);
if (composition && glowing) //Seb
{
textSize.Width += GLOW_EXTRA_WIDTH;
}
}
catch
{
// ignored
}
// Return a memento with drawing details
return(new AccurateTextMemento(text, font, textSize, format, hint, disposeFont));
}
}
/// <summary>
/// Perform draw of content using provided memento.
/// </summary>
/// <param name="context">Render context.</param>
/// <param name="displayRect">Display area available for drawing.</param>
/// <param name="palette">Content palette details.</param>
/// <param name="memento">Cached values from layout call.</param>
/// <param name="orientation">Visual orientation of the content.</param>
/// <param name="state">State associated with rendering.</param>
/// <param name="composition">Drawing onto a composition element.</param>
/// <param name="glowing">If composition should glowing be drawn.</param>
/// <param name="allowFocusRect">Allow drawing of focus rectangle.</param>
public override void DrawContent(RenderContext context,
Rectangle displayRect,
IPaletteContent palette,
IDisposable memento,
VisualOrientation orientation,
PaletteState state,
bool composition,
bool glowing,
bool allowFocusRect)
{
Debug.Assert(context != null);
Debug.Assert(memento != null);
Debug.Assert(memento is StandardContentMemento);
// Validate parameter references
if (context == null) throw new ArgumentNullException("context");
if (palette == null) throw new ArgumentNullException("palette");
Debug.Assert(context.Control != null);
Debug.Assert(!context.Control.IsDisposed);
// Cast the incoming memento to the correct type
StandardContentMemento standard = (StandardContentMemento)memento;
if (standard.DrawImage)
{
DrawImageHelper(context,
standard.Image,
standard.ImageTransparentColor,
standard.ImageRect,
orientation,
palette.GetContentImageEffect(state),
palette.GetContentImageColorMap(state),
palette.GetContentImageColorTo(state));
}
if (standard.DrawShortText)
{
using (GraphicsTextHint hint = new GraphicsTextHint(context.Graphics, standard.ShortTextHint))
{
// Get the rectangle to use when dealing with gradients
Rectangle gradientRect = context.GetAlignedRectangle(palette.GetContentShortTextColorAlign(state), standard.ShortTextRect);
// Use standard helper routine to create appropriate color brush
Color color1 = palette.GetContentShortTextColor1(state);
PaletteColorStyle colorStyle = palette.GetContentShortTextColorStyle(state);
using (Brush colorBrush = CreateColorBrush(gradientRect,
color1,
palette.GetContentShortTextColor2(state),
colorStyle,
palette.GetContentShortTextColorAngle(state),
orientation))
{
if (!AccurateText.DrawString(context.Graphics,
colorBrush,
standard.ShortTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.ShortTextMemento))
{
// Failed to draw means the font is likely to be invalid, get a fresh font
standard.ShortTextMemento.Font = palette.GetContentShortTextNewFont(state);
// Try again using the new font
AccurateText.DrawString(context.Graphics,
colorBrush,
standard.ShortTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.ShortTextMemento);
}
}
Image shortImage = palette.GetContentShortTextImage(state);
PaletteImageStyle shortImageStyle = palette.GetContentShortTextImageStyle(state);
// Do we need to draw the image?
if (ShouldDrawImage(shortImage))
{
// Get the rectangle to use when dealing with gradients
Rectangle imageRect = context.GetAlignedRectangle(palette.GetContentShortTextImageAlign(state), standard.ShortTextRect);
// Use standard helper routine to create appropriate image brush
using (Brush imageBrush = CreateImageBrush(imageRect, shortImage, shortImageStyle))
{
if (!AccurateText.DrawString(context.Graphics,
imageBrush,
standard.ShortTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.ShortTextMemento))
{
// Failed to draw means the font is likely to be invalid, get a fresh font
standard.ShortTextMemento.Font = palette.GetContentShortTextNewFont(state);
AccurateText.DrawString(context.Graphics,
imageBrush,
standard.ShortTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.ShortTextMemento);
}
}
}
}
}
if (standard.DrawLongText)
{
using (GraphicsTextHint hint = new GraphicsTextHint(context.Graphics, standard.LongTextHint))
{
// Get the rectangle to use when dealing with gradients
Rectangle gradientRect = context.GetAlignedRectangle(palette.GetContentLongTextColorAlign(state), standard.LongTextRect);
// Use standard helper routine to create appropriate color brush
Color color1 = palette.GetContentLongTextColor1(state);
PaletteColorStyle colorStyle = palette.GetContentLongTextColorStyle(state);
using (Brush colorBrush = CreateColorBrush(gradientRect,
color1,
palette.GetContentLongTextColor2(state),
colorStyle,
palette.GetContentLongTextColorAngle(state),
orientation))
{
if (!AccurateText.DrawString(context.Graphics,
colorBrush,
standard.LongTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.LongTextMemento))
{
// Failed to draw means the font is likely to be invalid, get a fresh font
standard.LongTextMemento.Font = palette.GetContentLongTextNewFont(state);
AccurateText.DrawString(context.Graphics,
colorBrush,
standard.LongTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.LongTextMemento);
}
}
Image longImage = palette.GetContentLongTextImage(state);
PaletteImageStyle longImageStyle = palette.GetContentLongTextImageStyle(state);
// Do we need to draw the image?
if (ShouldDrawImage(longImage))
{
// Get the rectangle to use when dealing with gradients
Rectangle imageRect = context.GetAlignedRectangle(palette.GetContentLongTextImageAlign(state), standard.LongTextRect);
// Use standard helper routine to create appropriate image brush
using (Brush imageBrush = CreateImageBrush(imageRect, longImage, longImageStyle))
{
if (!AccurateText.DrawString(context.Graphics,
imageBrush,
standard.LongTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.LongTextMemento))
{
// Failed to draw means the font is likely to be invalid, get a fresh font
standard.LongTextMemento.Font = palette.GetContentLongTextNewFont(state);
AccurateText.DrawString(context.Graphics,
imageBrush,
standard.LongTextRect,
context.Control.RightToLeft,
standard.Orientation,
composition,
glowing,
state,
standard.LongTextMemento);
}
}
}
}
}
// Do we need to show this content has the focus?
if (allowFocusRect && (palette.GetContentDrawFocus(state) == InheritBool.True))
{
// Place the rectangle 1 pixel inside the content display area
displayRect.Inflate(-1, -1);
// Use window forms provided helper class for drawing
ControlPaint.DrawFocusRectangle(context.Graphics, displayRect);
}
}
/// <summary>
/// Raises the RenderItemText event.
/// </summary>
/// <param name="e">A ToolStripItemTextRenderEventArgs that contains the event data.</param>
protected override void OnRenderItemText(ToolStripItemTextRenderEventArgs e)
{
if ((e.ToolStrip is ToolStrip) ||
(e.ToolStrip is ContextMenuStrip) ||
(e.ToolStrip is ToolStripDropDownMenu))
{
if (!e.Item.Enabled)
e.TextColor = _disabled;
else
{
if ((e.ToolStrip is MenuStrip) && !e.Item.Pressed)
e.TextColor = KCT.MenuStripText;
else if ((e.ToolStrip is MenuStrip) && (e.Item.Pressed || e.Item.Selected))
e.TextColor = KCT.MenuItemText;
else if ((e.ToolStrip is StatusStrip) && !e.Item.Pressed && !e.Item.Selected)
e.TextColor = KCT.StatusStripText;
else if ((e.ToolStrip is ContextMenuStrip) || (e.ToolStrip is ToolStripDropDownMenu))
e.TextColor = KCT.MenuItemText;
else if (((e.ToolStrip is ToolStripDropDownMenu) || (e.ToolStrip is ToolStripOverflow)) && !e.Item.Selected)
e.TextColor = KCT.MenuItemText;
else if ((e.ToolStrip is ToolStrip) && ((e.Item is ToolStripSplitButton) || (e.Item is ToolStripDropDownButton)) && e.Item.Pressed)
e.TextColor = KCT.MenuItemText;
else
e.TextColor = KCT.ToolStripText;
}
// Status strips under XP cannot use clear type because it ends up being cut off at edges
if ((e.ToolStrip is StatusStrip) && (Environment.OSVersion.Version.Major < 6))
base.OnRenderItemText(e);
else
{
using (GraphicsTextHint clearTypeGridFit = new GraphicsTextHint(e.Graphics, TextRenderingHint.ClearTypeGridFit))
base.OnRenderItemText(e);
}
}
else
base.OnRenderItemText(e);
}
/// <summary>
/// Pixel accurate measure of the specified string when drawn with the specified Font object.
/// </summary>
/// <param name="g">Graphics instance used to measure text.</param>
/// <param name="rtl">Right to left setting for control.</param>
/// <param name="text">String to measure.</param>
/// <param name="font">Font object that defines the text format of the string.</param>
/// <param name="trim">How to trim excess text.</param>
/// <param name="align">How to align multine text.</param>
/// <param name="prefix">How to process prefix characters.</param>
/// <param name="hint">Rendering hint.</param>
/// <param name="composition">Should draw on a composition element.</param>
/// <param name="disposeFont">Dispose of font when finished with it.</param>
/// <returns>A memento used to draw the text.</returns>
public static AccurateTextMemento MeasureString(Graphics g,
RightToLeft rtl,
string text,
Font font,
PaletteTextTrim trim,
PaletteRelativeAlign align,
PaletteTextHotkeyPrefix prefix,
TextRenderingHint hint,
bool composition,
bool disposeFont)
{
Debug.Assert(g != null);
Debug.Assert(text != null);
Debug.Assert(font != null);
if (g == null) throw new ArgumentNullException("g");
if (text == null) throw new ArgumentNullException("text");
if (font == null) throw new ArgumentNullException("font");
// An empty string cannot be drawn, so uses the empty memento
if (text.Length == 0)
return AccurateTextMemento.Empty;
// Create the format object used when measuring and drawing
StringFormat format = new StringFormat();
format.FormatFlags = StringFormatFlags.NoClip;
// Ensure that text reflects reversed RTL setting
if (rtl == RightToLeft.Yes)
format.FormatFlags = StringFormatFlags.DirectionRightToLeft;
// How do we position text horizontally?
switch (align)
{
case PaletteRelativeAlign.Near:
format.Alignment = (rtl == RightToLeft.Yes) ? StringAlignment.Far : StringAlignment.Near;
break;
case PaletteRelativeAlign.Center:
format.Alignment = StringAlignment.Center;
break;
case PaletteRelativeAlign.Far:
format.Alignment = (rtl == RightToLeft.Yes) ? StringAlignment.Near : StringAlignment.Far;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Do we need to trim text that is too big?
switch (trim)
{
case PaletteTextTrim.Character:
format.Trimming = StringTrimming.Character;
break;
case PaletteTextTrim.EllipsisCharacter:
format.Trimming = StringTrimming.EllipsisCharacter;
break;
case PaletteTextTrim.EllipsisPath:
format.Trimming = StringTrimming.EllipsisPath;
break;
case PaletteTextTrim.EllipsisWord:
format.Trimming = StringTrimming.EllipsisWord;
break;
case PaletteTextTrim.Word:
format.Trimming = StringTrimming.Word;
break;
case PaletteTextTrim.Hide:
format.Trimming = StringTrimming.None;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Setup the correct prefix processing
switch (prefix)
{
case PaletteTextHotkeyPrefix.None:
format.HotkeyPrefix = HotkeyPrefix.None;
break;
case PaletteTextHotkeyPrefix.Hide:
format.HotkeyPrefix = HotkeyPrefix.Hide;
break;
case PaletteTextHotkeyPrefix.Show:
format.HotkeyPrefix = HotkeyPrefix.Show;
break;
default:
// Should never happen!
Debug.Assert(false);
break;
}
// Replace tab characters with a fixed four spaces
text = text.Replace("\t", " ");
// Perform actual measure of the text
using (GraphicsTextHint graphicsHint = new GraphicsTextHint(g, hint))
{
SizeF textSize = Size.Empty;
try
{
textSize = g.MeasureString(text, font, int.MaxValue, format);
if (composition)
textSize.Width += GLOW_EXTRA_WIDTH;
}
catch {}
// Return a memento with drawing details
return new AccurateTextMemento(text, font, textSize, format, hint, disposeFont);
}
}
/// <summary>
/// Raises the RenderItemText event.
/// </summary>
/// <param name="e">A ToolStripItemTextRenderEventArgs that contains the event data.</param>
protected override void OnRenderItemText(ToolStripItemTextRenderEventArgs e)
{
if ((e.ToolStrip is ToolStrip) ||
(e.ToolStrip is ContextMenuStrip) ||
(e.ToolStrip is ToolStripDropDownMenu))
{
if (!e.Item.Enabled)
{
e.TextColor = _disabled;
}
else
{
if ((e.ToolStrip is MenuStrip) && !e.Item.Pressed && !e.Item.Selected)
{
e.TextColor = KCT.MenuStripText;
}
else if (e.ToolStrip is MenuStrip)
{
e.TextColor = KCT.MenuItemText;
}
else if ((e.ToolStrip is StatusStrip) && !e.Item.Pressed && !e.Item.Selected)
{
e.TextColor = KCT.StatusStripText;
}
else if ((e.ToolStrip is StatusStrip) && !e.Item.Pressed && e.Item.Selected)
{
e.TextColor = KCT.MenuItemText;
}
else if ((e.ToolStrip is ToolStrip) && !e.Item.Pressed && e.Item.Selected)
{
e.TextColor = KCT.MenuItemText;
}
else if ((e.ToolStrip is ContextMenuStrip) && !e.Item.Pressed && !e.Item.Selected)
{
e.TextColor = KCT.MenuItemText;
}
else if (e.ToolStrip is ToolStripDropDownMenu)
{
e.TextColor = KCT.MenuItemText;
}
else if ((e.Item is ToolStripButton) && (((ToolStripButton)e.Item).Checked))
{
e.TextColor = KCT.MenuItemText;
}
else
{
e.TextColor = KCT.ToolStripText;
}
}
// Status strips under XP cannot use clear type because it ends up being cut off at edges
if ((e.ToolStrip is StatusStrip) && (Environment.OSVersion.Version.Major < 6))
{
base.OnRenderItemText(e);
}
else
{
using (GraphicsTextHint clearTypeGridFit = new GraphicsTextHint(e.Graphics, TextRenderingHint.ClearTypeGridFit))
base.OnRenderItemText(e);
}
}
else
{
base.OnRenderItemText(e);
}
}
