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6502bench/CommonWPF/Helper.cs
Andy McFadden 83da0d952c Fancy comments, part 1
Added a "fancy" flag to MultiLineComment.  If set, we will use
formatting commands embedded in the text itself.  The max width pop-up
and "boxed" flag will be ignored in favor of width and boxing
directives.  (See issue #111.)

The current "fancy" formatter is just a placeholder that folds lines
every 10 characters.

Removed FormattedMlcCache (added two changes back).  Caching the
rendered string list in the MLC itself is simpler and more efficient
than having a separate cache, and it works for Notes as well.

Added anchors for more comments in the 20090 test.
2024-07-04 17:25:21 -07:00

103 lines
4.0 KiB
C#

/*
* Copyright 2019 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Windows;
using System.Windows.Media;
namespace CommonWPF {
/// <summary>
/// Miscellaneous helper functions.
/// </summary>
public static class Helper {
/// <summary>
/// Transparent black.
/// </summary>
public static readonly Color ZeroColor = Color.FromArgb(0, 0, 0, 0);
/// <summary>
/// Measures the size of a string when rendered with the specified parameters. Uses
/// the current culture, left-to-right flow, and 1 pixel per DIP.
/// </summary>
/// <remarks>
/// The Graphics.MeasureString approach from WinForms doesn't work in WPF, but we can
/// accomplish the same thing with the FormattedText class.
/// </remarks>
/// <seealso cref="https://stackoverflow.com/a/9266288/294248"/>
/// <param name="str">Text to be displayed.</param>
/// <param name="fontFamily">Font family for Typeface.</param>
/// <param name="fontStyle">Font style for Typeface.</param>
/// <param name="fontWeight">Font weight for Typeface.</param>
/// <param name="fontStretch">Font stretch for Typeface.</param>
/// <param name="emSize">Font size.</param>
/// <returns>Width and height of rendered text.</returns>
public static Size MeasureString(string str, FontFamily fontFamily, FontStyle fontStyle,
FontWeight fontWeight, FontStretch fontStretch, double emSize) {
FormattedText fmt = new FormattedText(
str,
CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
new Typeface(fontFamily, fontStyle, fontWeight, fontStretch),
emSize,
Brushes.Black,
new NumberSubstitution(),
1.0);
return new Size(fmt.Width, fmt.Height);
}
/// <summary>
/// Measures the size of a string when rendered with the specified parameters. Uses
/// the current culture, left-to-right flow, and 1 pixel per DIP.
/// </summary>
/// <param name="str">Text to be displayed.</param>
/// <param name="typeface">Font typeface to use.</param>
/// <param name="emSize">Font size.</param>
/// <returns>Width of rendered text.</returns>
public static double MeasureStringWidth(string str, Typeface typeface, double emSize) {
FormattedText fmt = new FormattedText(
str,
CultureInfo.CurrentCulture,
FlowDirection.LeftToRight,
typeface,
emSize,
Brushes.Black,
new NumberSubstitution(),
1.0);
return fmt.Width;
}
/// <summary>
/// Converts a System.Windows.Media.Color value into 32-bit ARGB.
/// </summary>
public static int ColorToInt(Color color) {
return (color.A << 24) | (color.R << 16) | (color.G << 8) | color.B;
}
/// <summary>
/// Creates a System.Windows.Media.Color value from 32-bit ARGB.
/// </summary>
/// <param name="colorInt"></param>
/// <returns></returns>
public static Color ColorFromInt(int colorInt) {
return Color.FromArgb((byte)(colorInt >> 24), (byte)(colorInt >> 16),
(byte)(colorInt >> 8), (byte)colorInt);
}
}
}