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Doghole
2026-01-07 11:33:05 +08:00
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ICSharpCode.TextEditor/Project/Src/Util/TipPainter.cs Normal file
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// <file>
// <copyright see="prj:///doc/copyright.txt"/>
// <license see="prj:///doc/license.txt"/>
// <owner name="none" email=""/>
// <version>$Revision$</version>
// </file>
using System.Drawing;
using System.Drawing.Text;
using System.Windows.Forms;
namespace ICSharpCode.TextEditor.Util
{
static class TipPainter
{
const float HorizontalBorder = 2;
const float VerticalBorder = 1;
//static StringFormat centerTipFormat = CreateTipStringFormat();
public static Size GetTipSize(Control control, Graphics graphics, Font font, string description)
{
return GetTipSize(control, graphics, new TipText (graphics, font, description));
}
static Rectangle GetWorkingArea(Control control)
{
Form ownerForm = control.FindForm();
if (ownerForm.Owner != null) {
ownerForm = ownerForm.Owner;
}
return Screen.GetWorkingArea(ownerForm);
}
public static Size GetTipSize(Control control, Graphics graphics, TipSection tipData)
{
Size tipSize = Size.Empty;
SizeF tipSizeF = SizeF.Empty;
RectangleF workingArea = GetWorkingArea(control);
PointF screenLocation = control.PointToScreen(Point.Empty);
SizeF maxLayoutSize = new SizeF(workingArea.Right - screenLocation.X - HorizontalBorder * 2,
workingArea.Bottom - screenLocation.Y - VerticalBorder * 2);
if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) {
graphics.TextRenderingHint =
TextRenderingHint.AntiAliasGridFit;
tipData.SetMaximumSize(maxLayoutSize);
tipSizeF = tipData.GetRequiredSize();
tipData.SetAllocatedSize(tipSizeF);
tipSizeF += new SizeF(HorizontalBorder * 2,
VerticalBorder * 2);
tipSize = Size.Ceiling(tipSizeF);
}
if (control.ClientSize != tipSize) {
control.ClientSize = tipSize;
}
return tipSize;
}
public static Size GetLeftHandSideTipSize(Control control, Graphics graphics, TipSection tipData, Point p)
{
Size tipSize = Size.Empty;
SizeF tipSizeF = SizeF.Empty;
RectangleF workingArea = GetWorkingArea(control);
PointF screenLocation = p;
SizeF maxLayoutSize = new SizeF(screenLocation.X - HorizontalBorder * 2,
workingArea.Bottom - screenLocation.Y - VerticalBorder * 2);
if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) {
graphics.TextRenderingHint =
TextRenderingHint.AntiAliasGridFit;
tipData.SetMaximumSize(maxLayoutSize);
tipSizeF = tipData.GetRequiredSize();
tipData.SetAllocatedSize(tipSizeF);
tipSizeF += new SizeF(HorizontalBorder * 2,
VerticalBorder * 2);
tipSize = Size.Ceiling(tipSizeF);
}
return tipSize;
}
public static Size DrawTip(Control control, Graphics graphics, Font font, string description)
{
return DrawTip(control, graphics, new TipText (graphics, font, description));
}
public static Size DrawTip(Control control, Graphics graphics, TipSection tipData)
{
Size tipSize = Size.Empty;
SizeF tipSizeF = SizeF.Empty;
PointF screenLocation = control.PointToScreen(Point.Empty);
RectangleF workingArea = GetWorkingArea(control);
SizeF maxLayoutSize = new SizeF(workingArea.Right - screenLocation.X - HorizontalBorder * 2,
workingArea.Bottom - screenLocation.Y - VerticalBorder * 2);
if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) {
graphics.TextRenderingHint =
TextRenderingHint.AntiAliasGridFit;
tipData.SetMaximumSize(maxLayoutSize);
tipSizeF = tipData.GetRequiredSize();
tipData.SetAllocatedSize(tipSizeF);
tipSizeF += new SizeF(HorizontalBorder * 2,
VerticalBorder * 2);
tipSize = Size.Ceiling(tipSizeF);
}
if (control.ClientSize != tipSize) {
control.ClientSize = tipSize;
}
if (tipSize != Size.Empty) {
Rectangle borderRectangle = new Rectangle
(Point.Empty, tipSize - new Size(1, 1));
RectangleF displayRectangle = new RectangleF
(HorizontalBorder, VerticalBorder,
tipSizeF.Width - HorizontalBorder * 2,
tipSizeF.Height - VerticalBorder * 2);
// DrawRectangle draws from Left to Left + Width. A bug? :-/
graphics.DrawRectangle(SystemPens.WindowFrame,
borderRectangle);
tipData.Draw(new PointF(HorizontalBorder, VerticalBorder));
}
return tipSize;
}
public static Size DrawFixedWidthTip(Control control, Graphics graphics, TipSection tipData)
{
Size tipSize = Size.Empty;
SizeF tipSizeF = SizeF.Empty;
PointF screenLocation = control.PointToScreen(new Point(control.Width, 0));
RectangleF workingArea = GetWorkingArea(control);
SizeF maxLayoutSize = new SizeF(screenLocation.X - HorizontalBorder * 2,
workingArea.Bottom - screenLocation.Y - VerticalBorder * 2);
if (maxLayoutSize.Width > 0 && maxLayoutSize.Height > 0) {
graphics.TextRenderingHint =
TextRenderingHint.AntiAliasGridFit;
tipData.SetMaximumSize(maxLayoutSize);
tipSizeF = tipData.GetRequiredSize();
tipData.SetAllocatedSize(tipSizeF);
tipSizeF += new SizeF(HorizontalBorder * 2,
VerticalBorder * 2);
tipSize = Size.Ceiling(tipSizeF);
}
if (control.Height != tipSize.Height) {
control.Height = tipSize.Height;
}
if (tipSize != Size.Empty) {
Rectangle borderRectangle = new Rectangle
(Point.Empty, control.Size - new Size(1, 1));
RectangleF displayRectangle = new RectangleF
(HorizontalBorder, VerticalBorder,
tipSizeF.Width - HorizontalBorder * 2,
tipSizeF.Height - VerticalBorder * 2);
// DrawRectangle draws from Left to Left + Width. A bug? :-/
graphics.DrawRectangle(SystemPens.WindowFrame,
borderRectangle);
tipData.Draw(new PointF(HorizontalBorder, VerticalBorder));
}
return tipSize;
}
}
}