mirror of
https://github.com/fadden/6502bench.git
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02fb5c50ea
- Break up long sequences of visualization images in exported HTML to avoid horizontal scrolling. Lines don't fold in "pre" mode, and switching out of "pre" is ugly, so we just break at an arbitrary point. - Use a slightly different filename for animated GIFs. - When moving items up/down in the visualization set editor or bitmap animation editor, scroll the datagrid to keep the selected item in view. - Fix a wayward assert.
264 lines
10 KiB
C#
264 lines
10 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Text;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using CommonUtil;
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using PluginCommon;
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namespace SourceGen {
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/// <summary>
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/// Graphical visualization object. Useful for displaying 2D bitmaps and 3D objects.
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///
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/// This is generally immutable, except for the CachedImage field.
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/// </summary>
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/// <remarks>
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/// Immutability is useful here because the undo/redo mechanism operates at VisualizationSet
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/// granularity. We want to know that the undo/redo operations are operating on objects
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/// that weren't changed while sitting in the undo buffer.
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/// </remarks>
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public class Visualization {
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/// <summary>
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/// Unique user-specified tag. This may be any valid string that is at least two
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/// characters long after the leading and trailing whitespace have been trimmed.
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/// </summary>
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public string Tag { get; private set; }
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/// <summary>
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/// Name of visualization generator (extension script function).
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/// </summary>
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public string VisGenIdent { get; private set; }
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/// <summary>
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/// Parameters to be passed to the visualization generator.
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/// </summary>
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/// <remarks>
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/// We use a read-only dictionary to reinforce the idea that the plugin shouldn't be
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/// modifying the parameter dictionary.
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/// </remarks>
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public ReadOnlyDictionary<string, object> VisGenParams { get; private set; }
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/// <summary>
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/// Cached reference to 2D image, useful for thumbnails that we display in the
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/// code listing. Not serialized. This always has an image reference; in times
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/// of trouble it will point at BROKEN_IMAGE.
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/// </summary>
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/// <remarks>
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/// Because the underlying data never changes, we only need to regenerate the
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/// image if the set of active plugins changes.
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///
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/// For 2D bitmaps this should be close to a 1:1 representation of the original,
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/// subject to the limitations of the visualization generator. For other types of
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/// data (vector line art, 3D meshes) this is a "snapshot" to help the user identify
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/// the data.
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/// </remarks>
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public BitmapSource CachedImage { get; set; }
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/// <summary>
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/// Image overlaid on CachedImage. Used to identify thumbnails as animations.
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/// </summary>
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public BitmapSource OverlayImage { get; set; }
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/// <summary>
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/// True if CachedImage has something other than the default value.
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/// </summary>
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public bool HasImage {
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get {
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return CachedImage != BROKEN_IMAGE && CachedImage != ANIM_OVERLAY_IMAGE;
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}
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}
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/// <summary>
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/// Image to show when things are broken.
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/// </summary>
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public static readonly BitmapImage BROKEN_IMAGE =
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new BitmapImage(new Uri("pack://application:,,,/Res/RedX.png"));
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/// <summary>
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/// Image to overlay on animation visualizations.
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/// </summary>
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internal static readonly BitmapSource ANIM_OVERLAY_IMAGE =
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VisualizationAnimation.GenerateAnimOverlayImage();
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internal static readonly BitmapSource BLANK_IMAGE = GenerateBlankImage();
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/// <summary>
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/// Serial number, for reference from other Visualization objects. Not serialized.
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/// </summary>
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/// <remarks>
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/// This value is only valid in the current session. It exists because animations
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/// need to refer to other Visualization objects, and doing so by Tag gets sticky
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/// if a tag gets renamed. We need a way to uniquely identify a reference to a
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/// Visualization that persists across Tag renames and other edits. When the objects
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/// are serialized to the project file we just output the tags.
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/// </remarks>
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public int SerialNumber { get; private set; }
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/// <summary>
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/// Serial number source.
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/// </summary>
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private static int sNextSerial = 1000;
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/// <summary>
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/// Constructor for a new Visualization.
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/// </summary>
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/// <param name="tag">Unique identifier.</param>
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/// <param name="visGenIdent">Visualization generator identifier.</param>
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/// <param name="visGenParams">Parameters for visualization generator.</param>
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public Visualization(string tag, string visGenIdent,
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ReadOnlyDictionary<string, object> visGenParams)
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:this(tag, visGenIdent, visGenParams, null) { }
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/// <summary>
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/// Constructor for a replacement Visualization.
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/// </summary>
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/// <param name="tag">Unique identifier.</param>
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/// <param name="visGenIdent">Visualization generator identifier.</param>
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/// <param name="visGenParams">Parameters for visualization generator.</param>
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/// <param name="oldObj">Visualization being replaced, or null if this is new.</param>
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public Visualization(string tag, string visGenIdent,
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ReadOnlyDictionary<string, object> visGenParams, Visualization oldObj) {
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Debug.Assert(!string.IsNullOrEmpty(tag));
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Debug.Assert(!string.IsNullOrEmpty(visGenIdent));
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Debug.Assert(visGenParams != null);
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Tag = tag;
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VisGenIdent = visGenIdent;
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VisGenParams = visGenParams;
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CachedImage = BROKEN_IMAGE;
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OverlayImage = BLANK_IMAGE;
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if (oldObj == null) {
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// not worried about multiple threads
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SerialNumber = sNextSerial++;
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} else {
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Debug.Assert(oldObj.SerialNumber >= 0 && oldObj.SerialNumber < sNextSerial);
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SerialNumber = oldObj.SerialNumber;
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}
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//Debug.WriteLine("NEW VIS: Serial=" + SerialNumber);
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}
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/// <summary>
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/// Updates the cached thumbnail image.
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/// </summary>
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/// <param name="vis2d">Visualization, or null to clear the thumbnail.</param>
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public void SetThumbnail(IVisualization2d vis2d) {
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if (vis2d == null) {
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CachedImage = BROKEN_IMAGE;
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} else {
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CachedImage = ConvertToBitmapSource(vis2d);
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}
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}
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/// <summary>
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/// Trims a tag, removing leading/trailing whitespace, and checks it for validity.
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/// </summary>
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/// <param name="tag">Tag to trim and validate.</param>
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/// <param name="isValid">Set to true if the tag is valid.</param>
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/// <returns>Trimmed tag string. Returns an empty string if tag is null.</returns>
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public static string TrimAndValidateTag(string tag, out bool isValid) {
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if (tag == null) {
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isValid = false;
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return string.Empty;
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}
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string trimTag = tag.Trim();
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if (trimTag.Length < 2) {
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isValid = false;
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} else {
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isValid = true;
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}
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return trimTag;
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}
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/// <summary>
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/// Converts an IVisualization2d to a BitmapSource for display.
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/// </summary>
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public static BitmapSource ConvertToBitmapSource(IVisualization2d vis2d) {
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// Create indexed color palette.
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int[] intPal = vis2d.GetPalette();
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List<Color> colors = new List<Color>(intPal.Length);
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foreach (int argb in intPal) {
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Color col = Color.FromArgb((byte)(argb >> 24), (byte)(argb >> 16),
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(byte)(argb >> 8), (byte)argb);
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colors.Add(col);
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}
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BitmapPalette palette = new BitmapPalette(colors);
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// indexed-color; see https://stackoverflow.com/a/15272528/294248 for direct color
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BitmapSource image = BitmapSource.Create(
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vis2d.Width,
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vis2d.Height,
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96.0,
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96.0,
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PixelFormats.Indexed8,
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palette,
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vis2d.GetPixels(),
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vis2d.Width);
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return image;
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}
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private static BitmapSource GenerateBlankImage() {
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RenderTargetBitmap bmp = new RenderTargetBitmap(1, 1, 96.0, 96.0,
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PixelFormats.Pbgra32);
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return bmp;
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}
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public override string ToString() {
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return "[Vis: " + Tag + " (" + VisGenIdent + ") count=" + VisGenParams.Count + "]";
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}
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public static bool operator ==(Visualization a, Visualization b) {
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if (ReferenceEquals(a, b)) {
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return true; // same object, or both null
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}
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if (ReferenceEquals(a, null) || ReferenceEquals(b, null)) {
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return false; // one is null
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}
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// All fields must be equal (but we ignore CachedImage).
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if (a.Tag != b.Tag || a.VisGenIdent != b.VisGenIdent) {
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return false;
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}
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// Compare the vis gen parameter lists.
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if (a.VisGenParams == b.VisGenParams) {
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return true;
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}
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if (a.VisGenParams.Count != b.VisGenParams.Count) {
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return false;
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}
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return Container.CompareDicts(a.VisGenParams, b.VisGenParams);
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}
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public static bool operator !=(Visualization a, Visualization b) {
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return !(a == b);
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}
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public override bool Equals(object obj) {
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return obj is Visualization && this == (Visualization)obj;
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}
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public override int GetHashCode() {
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// TODO(maybe): hash code should factor in VisGenParams items
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return Tag.GetHashCode() ^ VisGenIdent.GetHashCode() ^ VisGenParams.Count;
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}
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}
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}
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