├── .gitignore ├── LICENSE ├── README.md └── src ├── Rvt.Background.sln └── Rvt.Background ├── ApiContext.cs ├── BackgroundForm.cs ├── BackgroundProcessor.cs ├── BackgroundProcessorCommand.cs └── Rvt.Background.csproj /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/main/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.rsuser 8 | *.suo 9 | *.user 10 | *.userosscache 11 | *.sln.docstates 12 | 13 | # User-specific files (MonoDevelop/Xamarin Studio) 14 | *.userprefs 15 | 16 | # Mono auto generated files 17 | mono_crash.* 18 | 19 | # Build results 20 | [Dd]ebug/ 21 | [Dd]ebugPublic/ 22 | [Rr]elease/ 23 | [Rr]eleases/ 24 | x64/ 25 | x86/ 26 | [Ww][Ii][Nn]32/ 27 | [Aa][Rr][Mm]/ 28 | [Aa][Rr][Mm]64/ 29 | bld/ 30 | [Bb]in/ 31 | [Oo]bj/ 32 | [Ll]og/ 33 | [Ll]ogs/ 34 | 35 | # Visual Studio 2015/2017 cache/options directory 36 | .vs/ 37 | # Uncomment if you have tasks that create the project's static files in wwwroot 38 | #wwwroot/ 39 | 40 | # Visual Studio 2017 auto generated files 41 | Generated\ Files/ 42 | 43 | # MSTest test Results 44 | [Tt]est[Rr]esult*/ 45 | [Bb]uild[Ll]og.* 46 | 47 | # NUnit 48 | *.VisualState.xml 49 | TestResult.xml 50 | nunit-*.xml 51 | 52 | # Build Results of an ATL Project 53 | [Dd]ebugPS/ 54 | [Rr]eleasePS/ 55 | dlldata.c 56 | 57 | # Benchmark Results 58 | BenchmarkDotNet.Artifacts/ 59 | 60 | # .NET Core 61 | project.lock.json 62 | project.fragment.lock.json 63 | artifacts/ 64 | 65 | # ASP.NET Scaffolding 66 | ScaffoldingReadMe.txt 67 | 68 | # StyleCop 69 | StyleCopReport.xml 70 | 71 | # Files built by Visual Studio 72 | *_i.c 73 | *_p.c 74 | *_h.h 75 | *.ilk 76 | *.meta 77 | *.obj 78 | *.iobj 79 | *.pch 80 | *.pdb 81 | *.ipdb 82 | *.pgc 83 | *.pgd 84 | *.rsp 85 | *.sbr 86 | *.tlb 87 | *.tli 88 | *.tlh 89 | *.tmp 90 | *.tmp_proj 91 | *_wpftmp.csproj 92 | *.log 93 | *.tlog 94 | *.vspscc 95 | *.vssscc 96 | .builds 97 | *.pidb 98 | *.svclog 99 | *.scc 100 | 101 | # Chutzpah Test files 102 | _Chutzpah* 103 | 104 | # Visual C++ cache files 105 | ipch/ 106 | *.aps 107 | *.ncb 108 | *.opendb 109 | *.opensdf 110 | *.sdf 111 | *.cachefile 112 | *.VC.db 113 | *.VC.VC.opendb 114 | 115 | # Visual Studio profiler 116 | *.psess 117 | *.vsp 118 | *.vspx 119 | *.sap 120 | 121 | # Visual Studio Trace Files 122 | *.e2e 123 | 124 | # TFS 2012 Local Workspace 125 | $tf/ 126 | 127 | # Guidance Automation Toolkit 128 | *.gpState 129 | 130 | # ReSharper is a .NET coding add-in 131 | _ReSharper*/ 132 | *.[Rr]e[Ss]harper 133 | *.DotSettings.user 134 | 135 | # TeamCity is a build add-in 136 | _TeamCity* 137 | 138 | # DotCover is a Code Coverage Tool 139 | *.dotCover 140 | 141 | # AxoCover is a Code Coverage Tool 142 | .axoCover/* 143 | !.axoCover/settings.json 144 | 145 | # Coverlet is a free, cross platform Code Coverage Tool 146 | coverage*.json 147 | coverage*.xml 148 | coverage*.info 149 | 150 | # Visual Studio code coverage results 151 | *.coverage 152 | *.coveragexml 153 | 154 | # NCrunch 155 | _NCrunch_* 156 | .*crunch*.local.xml 157 | nCrunchTemp_* 158 | 159 | # MightyMoose 160 | *.mm.* 161 | AutoTest.Net/ 162 | 163 | # Web workbench (sass) 164 | .sass-cache/ 165 | 166 | # Installshield output folder 167 | [Ee]xpress/ 168 | 169 | # DocProject is a documentation generator add-in 170 | DocProject/buildhelp/ 171 | DocProject/Help/*.HxT 172 | DocProject/Help/*.HxC 173 | DocProject/Help/*.hhc 174 | DocProject/Help/*.hhk 175 | DocProject/Help/*.hhp 176 | DocProject/Help/Html2 177 | DocProject/Help/html 178 | 179 | # Click-Once directory 180 | publish/ 181 | 182 | # Publish Web Output 183 | *.[Pp]ublish.xml 184 | *.azurePubxml 185 | # Note: Comment the next line if you want to checkin your web deploy settings, 186 | # but database connection strings (with potential passwords) will be unencrypted 187 | *.pubxml 188 | *.publishproj 189 | 190 | # Microsoft Azure Web App publish settings. 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IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Revit Background Processor 2 | 3 | Perform computations in the background without blocking the Revit UI. 4 | 5 | https://github.com/user-attachments/assets/4e41f514-31ef-4b3d-a33e-1a63f4e9f85b 6 | 7 | # About 8 | 9 | This code contains a library for executing code in the background of Revit with 10 | blocking the UI. 11 | 12 | It uses a queue to contain work items and uses the Revit [UIApplication.Idling](https://www.revitapidocs.com/2019/e233027b-ba8c-0bd1-37b7-93a066efa5a3.htm) 13 | event to process items from the queue, within an alotted time slot. 14 | 15 | This addresses the issue that Revit is single-threaded. 16 | 17 | # Next Steps 18 | 19 | There challenges remain: 20 | 1. the frequency of idle events is inconsistent 21 | 2. do not happen if Revit is a background state. 22 | 3. When "idle" message is too frequent the CPU resources may get hogged 23 | 24 | Jeremy Tammik describes the issue here, and suggests using an External event: 25 | https://thebuildingcoder.typepad.com/blog/2013/12/replacing-an-idling-event-handler-by-an-external-event.html 26 | 27 | This could be added as an option to the current library: by creating an external event and a thread that triggers work periodically. 28 | 29 | However two outstanding problems with that approach are: 30 | 31 | 1. Revit does not actually call the external event Execute method until a cursor movement or some other system event wakes it up. 32 | 2. External events won't fire if Revit doesn't have focus. 33 | 34 | The beginnings of a solution are decribed here: https://adndevblog.typepad.com/aec/2013/07/tricks-to-force-trigger-idling-event.html, but note 35 | that the code there does not actually work. 36 | 37 | Some options to explore are the following, which execute either on a separate thread or process,: 38 | 39 | 1. explicitly moving the mouse a tiny bit 40 | 2. posting the windows message for a mouse move event to the main Revit window 41 | 42 | The final solution may involve chained idle events, along with an external event that checks for changes less frequently 43 | 44 | More empirical data needs to be gathered. 45 | 46 | # Difference from Revit.Async 47 | 48 | [Revit.Async](https://github.com/KennanChan/Revit.Async) solves the problem of assuring that code 49 | is executed within a valid Revit context. This is achieved to a lesser degree by the `ApiContext` 50 | class provided here, or by executing code during an `Idling` event. 51 | 52 | # About the Code 53 | 54 | This code is not a standalone plug-in, the `BackgroundProcessor.cs` and `ApiContext.cs` 55 | files are intended to be reused in your other projects. The `BackgroundForm.cs` Windows Form can 56 | be used for debugging purposes. 57 | 58 | The development version of this code can be found in the 59 | [Bowerbird repository](https://github.com/ara3d/bowerbird/blob/main/Ara3D.Bowerbird.RevitSamples/BackgroundProcessor.cs) 60 | 61 | # Feedback and Contributions 62 | 63 | We warmly welcome contributions and feedback. 64 | We would appreciate learning about any usage of this project. 65 | 66 | # Acknowledgement 67 | 68 | This work is sponsored by HOK. 69 | Thank you to Jeremey Tammik for valuable feedback. 70 | Special thanks to Greg Schleusner for starting and organizing the project. 71 | 72 | 73 | 74 | 75 | 76 | -------------------------------------------------------------------------------- /src/Rvt.Background.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio Version 17 4 | VisualStudioVersion = 17.8.34525.116 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Rvt.Background", "Rvt.Background\Rvt.Background.csproj", "{0A310011-50E5-4FEE-9934-C2B54B753549}" 7 | EndProject 8 | Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "solution items", "solution items", "{6D6731BB-E20B-43A6-9F1F-DE3249981284}" 9 | ProjectSection(SolutionItems) = preProject 10 | ..\LICENSE = ..\LICENSE 11 | ..\README.md = ..\README.md 12 | EndProjectSection 13 | EndProject 14 | Global 15 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 16 | Debug|Any CPU = Debug|Any CPU 17 | Release|Any CPU = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 20 | {0A310011-50E5-4FEE-9934-C2B54B753549}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 21 | {0A310011-50E5-4FEE-9934-C2B54B753549}.Debug|Any CPU.Build.0 = Debug|Any CPU 22 | {0A310011-50E5-4FEE-9934-C2B54B753549}.Release|Any CPU.ActiveCfg = Release|Any CPU 23 | {0A310011-50E5-4FEE-9934-C2B54B753549}.Release|Any CPU.Build.0 = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {152145D8-2835-4B23-A408-8FAE47B018D8} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /src/Rvt.Background/ApiContext.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using Autodesk.Revit.UI; 3 | 4 | namespace Rvt.Background 5 | { 6 | /// 7 | /// This allows you to execute arbitrary Revit code within a valid UI context. 8 | /// 9 | public static class ApiContext 10 | { 11 | public class ExternalEventHandler : IExternalEventHandler 12 | { 13 | public readonly Action Action; 14 | public readonly string Name; 15 | 16 | public ExternalEventHandler(Action action, string name) 17 | { 18 | Action = action ?? throw new ArgumentNullException(nameof(action)); 19 | Name = name; 20 | } 21 | 22 | public void Execute(UIApplication app) 23 | => Action(app); 24 | 25 | public string GetName() 26 | => Name; 27 | } 28 | 29 | public static ExternalEvent CreateEvent(Action action, string name) 30 | { 31 | var eeh = new ExternalEventHandler(action, name); 32 | return ExternalEvent.Create(eeh); 33 | } 34 | } 35 | } -------------------------------------------------------------------------------- /src/Rvt.Background/BackgroundForm.cs: -------------------------------------------------------------------------------- 1 | namespace Rvt.Background 2 | { 3 | /// 4 | /// This form was designed using Windows designer, and then copied here manually 5 | /// so that it could be used from Bowerbird 6 | /// 7 | public class BackgroundForm : System.Windows.Forms.Form 8 | { 9 | public BackgroundForm() 10 | { 11 | InitializeComponent(); 12 | } 13 | 14 | /// 15 | /// Required designer variable. 16 | /// 17 | private System.ComponentModel.IContainer components = null; 18 | 19 | /// 20 | /// Clean up any resources being used. 21 | /// 22 | /// true if managed resources should be disposed; otherwise, false. 23 | protected override void Dispose(bool disposing) 24 | { 25 | if (disposing && (components != null)) 26 | { 27 | components.Dispose(); 28 | } 29 | 30 | base.Dispose(disposing); 31 | } 32 | 33 | /// 34 | /// Required method for Designer support - do not modify 35 | /// the contents of this method with the code editor. 36 | /// 37 | private void InitializeComponent() 38 | { 39 | this.checkBoxIdleEventNoDelay = new System.Windows.Forms.CheckBox(); 40 | this.checkBoxPaused = new System.Windows.Forms.CheckBox(); 41 | this.numericUpDownMsecPerBatch = new System.Windows.Forms.NumericUpDown(); 42 | this.label1 = new System.Windows.Forms.Label(); 43 | this.buttonResetStats = new System.Windows.Forms.Button(); 44 | this.checkBoxProcessDuringIdle = new System.Windows.Forms.CheckBox(); 45 | this.checkBoxProcessDuringProgress = new System.Windows.Forms.CheckBox(); 46 | this.checkBoxEnabled = new System.Windows.Forms.CheckBox(); 47 | this.groupBox1 = new System.Windows.Forms.GroupBox(); 48 | this.label5 = new System.Windows.Forms.Label(); 49 | this.textBoxWorkItemProcessed = new System.Windows.Forms.TextBox(); 50 | this.label4 = new System.Windows.Forms.Label(); 51 | this.textBoxCpuTimeOnWork = new System.Windows.Forms.TextBox(); 52 | this.groupBox2 = new System.Windows.Forms.GroupBox(); 53 | this.groupBox3 = new System.Windows.Forms.GroupBox(); 54 | this.buttonProcessSome = new System.Windows.Forms.Button(); 55 | this.buttonProcessAll = new System.Windows.Forms.Button(); 56 | this.label3 = new System.Windows.Forms.Label(); 57 | this.textBoxItemsQueued = new System.Windows.Forms.TextBox(); 58 | this.buttonClearWork = new System.Windows.Forms.Button(); 59 | ((System.ComponentModel.ISupportInitialize)(this.numericUpDownMsecPerBatch)).BeginInit(); 60 | this.groupBox1.SuspendLayout(); 61 | this.groupBox2.SuspendLayout(); 62 | this.groupBox3.SuspendLayout(); 63 | this.SuspendLayout(); 64 | // 65 | // checkBoxIdleEventNoDelay 66 | // 67 | this.checkBoxIdleEventNoDelay.AutoSize = true; 68 | this.checkBoxIdleEventNoDelay.Location = new System.Drawing.Point(6, 91); 69 | this.checkBoxIdleEventNoDelay.Name = "checkBoxIdleEventNoDelay"; 70 | this.checkBoxIdleEventNoDelay.Size = new System.Drawing.Size(149, 17); 71 | this.checkBoxIdleEventNoDelay.TabIndex = 0; 72 | this.checkBoxIdleEventNoDelay.Text = "Idling Event without Delay"; 73 | this.checkBoxIdleEventNoDelay.UseVisualStyleBackColor = true; 74 | // 75 | // checkBoxPaused 76 | // 77 | this.checkBoxPaused.AutoSize = true; 78 | this.checkBoxPaused.Location = new System.Drawing.Point(18, 76); 79 | this.checkBoxPaused.Name = "checkBoxPaused"; 80 | this.checkBoxPaused.Size = new System.Drawing.Size(62, 17); 81 | this.checkBoxPaused.TabIndex = 1; 82 | this.checkBoxPaused.Text = "Paused"; 83 | this.checkBoxPaused.UseVisualStyleBackColor = true; 84 | // 85 | // numericUpDownMsecPerBatch 86 | // 87 | this.numericUpDownMsecPerBatch.Location = new System.Drawing.Point(6, 19); 88 | this.numericUpDownMsecPerBatch.Maximum = new decimal(new int[] 89 | { 90 | 5000, 91 | 0, 92 | 0, 93 | 0 94 | }); 95 | this.numericUpDownMsecPerBatch.Minimum = new decimal(new int[] 96 | { 97 | 5, 98 | 0, 99 | 0, 100 | 0 101 | }); 102 | this.numericUpDownMsecPerBatch.Name = "numericUpDownMsecPerBatch"; 103 | this.numericUpDownMsecPerBatch.Size = new System.Drawing.Size(67, 20); 104 | this.numericUpDownMsecPerBatch.TabIndex = 2; 105 | this.numericUpDownMsecPerBatch.Value = new decimal(new int[] 106 | { 107 | 5, 108 | 0, 109 | 0, 110 | 0 111 | }); 112 | // 113 | // label1 114 | // 115 | this.label1.AutoSize = true; 116 | this.label1.Location = new System.Drawing.Point(79, 26); 117 | this.label1.Name = "label1"; 118 | this.label1.Size = new System.Drawing.Size(111, 13); 119 | this.label1.TabIndex = 3; 120 | this.label1.Text = "Msec per Work Batch"; 121 | // 122 | // buttonResetStats 123 | // 124 | this.buttonResetStats.Anchor = 125 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 126 | System.Windows.Forms.AnchorStyles.Left) 127 | | System.Windows.Forms.AnchorStyles.Right))); 128 | this.buttonResetStats.Location = new System.Drawing.Point(7, 80); 129 | this.buttonResetStats.Name = "buttonResetStats"; 130 | this.buttonResetStats.Size = new System.Drawing.Size(238, 23); 131 | this.buttonResetStats.TabIndex = 4; 132 | this.buttonResetStats.Text = "Reset Stats"; 133 | this.buttonResetStats.UseVisualStyleBackColor = true; 134 | // 135 | // checkBoxProcessDuringIdle 136 | // 137 | this.checkBoxProcessDuringIdle.AutoSize = true; 138 | this.checkBoxProcessDuringIdle.Location = new System.Drawing.Point(6, 45); 139 | this.checkBoxProcessDuringIdle.Name = "checkBoxProcessDuringIdle"; 140 | this.checkBoxProcessDuringIdle.Size = new System.Drawing.Size(116, 17); 141 | this.checkBoxProcessDuringIdle.TabIndex = 15; 142 | this.checkBoxProcessDuringIdle.Text = "Process during Idle"; 143 | this.checkBoxProcessDuringIdle.UseVisualStyleBackColor = true; 144 | // 145 | // checkBoxProcessDuringProgress 146 | // 147 | this.checkBoxProcessDuringProgress.AutoSize = true; 148 | this.checkBoxProcessDuringProgress.Location = new System.Drawing.Point(6, 68); 149 | this.checkBoxProcessDuringProgress.Name = "checkBoxProcessDuringProgress"; 150 | this.checkBoxProcessDuringProgress.Size = new System.Drawing.Size(140, 17); 151 | this.checkBoxProcessDuringProgress.TabIndex = 16; 152 | this.checkBoxProcessDuringProgress.Text = "Process during Progress"; 153 | this.checkBoxProcessDuringProgress.UseVisualStyleBackColor = true; 154 | // 155 | // checkBoxEnabled 156 | // 157 | this.checkBoxEnabled.AutoSize = true; 158 | this.checkBoxEnabled.Checked = true; 159 | this.checkBoxEnabled.CheckState = System.Windows.Forms.CheckState.Checked; 160 | this.checkBoxEnabled.Location = new System.Drawing.Point(13, 12); 161 | this.checkBoxEnabled.Name = "checkBoxEnabled"; 162 | this.checkBoxEnabled.Size = new System.Drawing.Size(65, 17); 163 | this.checkBoxEnabled.TabIndex = 17; 164 | this.checkBoxEnabled.Text = "Enabled"; 165 | this.checkBoxEnabled.UseVisualStyleBackColor = true; 166 | // 167 | // groupBox1 168 | // 169 | this.groupBox1.Anchor = 170 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 171 | System.Windows.Forms.AnchorStyles.Left) 172 | | System.Windows.Forms.AnchorStyles.Right))); 173 | this.groupBox1.Controls.Add(this.label5); 174 | this.groupBox1.Controls.Add(this.textBoxWorkItemProcessed); 175 | this.groupBox1.Controls.Add(this.label4); 176 | this.groupBox1.Controls.Add(this.textBoxCpuTimeOnWork); 177 | this.groupBox1.Controls.Add(this.buttonResetStats); 178 | this.groupBox1.Location = new System.Drawing.Point(13, 324); 179 | this.groupBox1.Name = "groupBox1"; 180 | this.groupBox1.Size = new System.Drawing.Size(251, 122); 181 | this.groupBox1.TabIndex = 18; 182 | this.groupBox1.TabStop = false; 183 | this.groupBox1.Text = "Statistics"; 184 | // 185 | // label5 186 | // 187 | this.label5.AutoSize = true; 188 | this.label5.Location = new System.Drawing.Point(80, 60); 189 | this.label5.Name = "label5"; 190 | this.label5.Size = new System.Drawing.Size(95, 13); 191 | this.label5.TabIndex = 17; 192 | this.label5.Text = "# Items Processed"; 193 | // 194 | // textBoxWorkItemProcessed 195 | // 196 | this.textBoxWorkItemProcessed.Location = new System.Drawing.Point(7, 53); 197 | this.textBoxWorkItemProcessed.Name = "textBoxWorkItemProcessed"; 198 | this.textBoxWorkItemProcessed.ReadOnly = true; 199 | this.textBoxWorkItemProcessed.Size = new System.Drawing.Size(66, 20); 200 | this.textBoxWorkItemProcessed.TabIndex = 16; 201 | // 202 | // label4 203 | // 204 | this.label4.AutoSize = true; 205 | this.label4.Location = new System.Drawing.Point(80, 34); 206 | this.label4.Name = "label4"; 207 | this.label4.Size = new System.Drawing.Size(102, 13); 208 | this.label4.TabIndex = 15; 209 | this.label4.Text = "CPU Time on Work "; 210 | // 211 | // textBoxCpuTimeOnWork 212 | // 213 | this.textBoxCpuTimeOnWork.Location = new System.Drawing.Point(7, 27); 214 | this.textBoxCpuTimeOnWork.Name = "textBoxCpuTimeOnWork"; 215 | this.textBoxCpuTimeOnWork.ReadOnly = true; 216 | this.textBoxCpuTimeOnWork.Size = new System.Drawing.Size(66, 20); 217 | this.textBoxCpuTimeOnWork.TabIndex = 14; 218 | // 219 | // groupBox2 220 | // 221 | this.groupBox2.Anchor = 222 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 223 | System.Windows.Forms.AnchorStyles.Left) 224 | | System.Windows.Forms.AnchorStyles.Right))); 225 | this.groupBox2.Controls.Add(this.numericUpDownMsecPerBatch); 226 | this.groupBox2.Controls.Add(this.checkBoxProcessDuringIdle); 227 | this.groupBox2.Controls.Add(this.checkBoxProcessDuringProgress); 228 | this.groupBox2.Controls.Add(this.label1); 229 | this.groupBox2.Controls.Add(this.checkBoxIdleEventNoDelay); 230 | this.groupBox2.Location = new System.Drawing.Point(14, 201); 231 | this.groupBox2.Name = "groupBox2"; 232 | this.groupBox2.Size = new System.Drawing.Size(250, 117); 233 | this.groupBox2.TabIndex = 19; 234 | this.groupBox2.TabStop = false; 235 | this.groupBox2.Text = "Options"; 236 | // 237 | // groupBox3 238 | // 239 | this.groupBox3.Anchor = 240 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 241 | System.Windows.Forms.AnchorStyles.Left) 242 | | System.Windows.Forms.AnchorStyles.Right))); 243 | this.groupBox3.Controls.Add(this.buttonProcessSome); 244 | this.groupBox3.Controls.Add(this.buttonProcessAll); 245 | this.groupBox3.Controls.Add(this.label3); 246 | this.groupBox3.Controls.Add(this.textBoxItemsQueued); 247 | this.groupBox3.Controls.Add(this.buttonClearWork); 248 | this.groupBox3.Controls.Add(this.checkBoxPaused); 249 | this.groupBox3.Location = new System.Drawing.Point(13, 35); 250 | this.groupBox3.Name = "groupBox3"; 251 | this.groupBox3.Size = new System.Drawing.Size(251, 160); 252 | this.groupBox3.TabIndex = 20; 253 | this.groupBox3.TabStop = false; 254 | this.groupBox3.Text = "Work"; 255 | // 256 | // buttonProcessSome 257 | // 258 | this.buttonProcessSome.Anchor = 259 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 260 | System.Windows.Forms.AnchorStyles.Left) 261 | | System.Windows.Forms.AnchorStyles.Right))); 262 | this.buttonProcessSome.Location = new System.Drawing.Point(7, 128); 263 | this.buttonProcessSome.Name = "buttonProcessSome"; 264 | this.buttonProcessSome.Size = new System.Drawing.Size(238, 23); 265 | this.buttonProcessSome.TabIndex = 19; 266 | this.buttonProcessSome.Text = "Process Some Work Now"; 267 | this.buttonProcessSome.UseVisualStyleBackColor = true; 268 | // 269 | // buttonProcessAll 270 | // 271 | this.buttonProcessAll.Anchor = 272 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 273 | System.Windows.Forms.AnchorStyles.Left) 274 | | System.Windows.Forms.AnchorStyles.Right))); 275 | this.buttonProcessAll.Location = new System.Drawing.Point(6, 99); 276 | this.buttonProcessAll.Name = "buttonProcessAll"; 277 | this.buttonProcessAll.Size = new System.Drawing.Size(239, 23); 278 | this.buttonProcessAll.TabIndex = 18; 279 | this.buttonProcessAll.Text = "Process All Now"; 280 | this.buttonProcessAll.UseVisualStyleBackColor = true; 281 | // 282 | // label3 283 | // 284 | this.label3.AutoSize = true; 285 | this.label3.Location = new System.Drawing.Point(80, 28); 286 | this.label3.Name = "label3"; 287 | this.label3.Size = new System.Drawing.Size(83, 13); 288 | this.label3.TabIndex = 17; 289 | this.label3.Text = "# Items Queued"; 290 | // 291 | // textBoxItemsQueued 292 | // 293 | this.textBoxItemsQueued.Location = new System.Drawing.Point(6, 21); 294 | this.textBoxItemsQueued.Name = "textBoxItemsQueued"; 295 | this.textBoxItemsQueued.ReadOnly = true; 296 | this.textBoxItemsQueued.Size = new System.Drawing.Size(66, 20); 297 | this.textBoxItemsQueued.TabIndex = 16; 298 | // 299 | // buttonClearWork 300 | // 301 | this.buttonClearWork.Anchor = 302 | ((System.Windows.Forms.AnchorStyles)(((System.Windows.Forms.AnchorStyles.Top | 303 | System.Windows.Forms.AnchorStyles.Left) 304 | | System.Windows.Forms.AnchorStyles.Right))); 305 | this.buttonClearWork.Location = new System.Drawing.Point(6, 47); 306 | this.buttonClearWork.Name = "buttonClearWork"; 307 | this.buttonClearWork.Size = new System.Drawing.Size(239, 23); 308 | this.buttonClearWork.TabIndex = 15; 309 | this.buttonClearWork.Text = "Clear Work"; 310 | this.buttonClearWork.UseVisualStyleBackColor = true; 311 | // 312 | // BackgroundProcessingForm 313 | // 314 | this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F); 315 | this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font; 316 | this.ClientSize = new System.Drawing.Size(277, 456); 317 | this.Controls.Add(this.groupBox3); 318 | this.Controls.Add(this.groupBox2); 319 | this.Controls.Add(this.groupBox1); 320 | this.Controls.Add(this.checkBoxEnabled); 321 | this.Name = "BackgroundProcessingForm"; 322 | this.Text = "Background Processor"; 323 | ((System.ComponentModel.ISupportInitialize)(this.numericUpDownMsecPerBatch)).EndInit(); 324 | this.groupBox1.ResumeLayout(false); 325 | this.groupBox1.PerformLayout(); 326 | this.groupBox2.ResumeLayout(false); 327 | this.groupBox2.PerformLayout(); 328 | this.groupBox3.ResumeLayout(false); 329 | this.groupBox3.PerformLayout(); 330 | this.ResumeLayout(false); 331 | this.PerformLayout(); 332 | 333 | } 334 | 335 | public System.Windows.Forms.CheckBox checkBoxIdleEventNoDelay; 336 | public System.Windows.Forms.CheckBox checkBoxPaused; 337 | public System.Windows.Forms.NumericUpDown numericUpDownMsecPerBatch; 338 | public System.Windows.Forms.Label label1; 339 | public System.Windows.Forms.Button buttonResetStats; 340 | public System.Windows.Forms.CheckBox checkBoxProcessDuringIdle; 341 | public System.Windows.Forms.CheckBox checkBoxProcessDuringProgress; 342 | public System.Windows.Forms.CheckBox checkBoxEnabled; 343 | public System.Windows.Forms.GroupBox groupBox1; 344 | public System.Windows.Forms.Label label5; 345 | public System.Windows.Forms.TextBox textBoxWorkItemProcessed; 346 | public System.Windows.Forms.Label label4; 347 | public System.Windows.Forms.TextBox textBoxCpuTimeOnWork; 348 | public System.Windows.Forms.GroupBox groupBox2; 349 | public System.Windows.Forms.GroupBox groupBox3; 350 | public System.Windows.Forms.Button buttonProcessAll; 351 | public System.Windows.Forms.Label label3; 352 | public System.Windows.Forms.TextBox textBoxItemsQueued; 353 | public System.Windows.Forms.Button buttonClearWork; 354 | public System.Windows.Forms.Button buttonProcessSome; 355 | } 356 | } 357 | -------------------------------------------------------------------------------- /src/Rvt.Background/BackgroundProcessor.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Diagnostics; 4 | using Autodesk.Revit.ApplicationServices; 5 | using Autodesk.Revit.DB.Events; 6 | using Autodesk.Revit.UI; 7 | 8 | namespace Rvt.Background 9 | { 10 | /// 11 | /// The background processor does arbitrary work in the background while Revit is Idle. 12 | /// It contains a queue of work items (of any user defined type) for later processing. 13 | /// Good practice for choosing a work item type is to not use a Revit API type (e.g., use an integer for element ID). 14 | /// Work processing is performed by a delegate / action provided to the constructors. 15 | /// When an OnIdle or DocumentChanged event occurs, work will be extracted out of the queue 16 | /// and executed using the provided action. 17 | /// This will be repeated until the maximum MSec per batch is reached. 18 | /// You can pause processing, execute all items immediately, or do other work. 19 | /// 20 | public class BackgroundProcessor : IDisposable 21 | { 22 | public readonly Queue Queue = new Queue(); 23 | public int MaxMSecPerBatch { get; set; } = 100; 24 | public bool ExecuteNextIdleImmediately { get; set; } 25 | public readonly Action Action; 26 | public readonly UIApplication UIApp; 27 | public Application App => UIApp.Application; 28 | public bool PauseProcessing { get; set; } 29 | public event EventHandler ExceptionEvent; 30 | public readonly Stopwatch WorkStopwatch = new Stopwatch(); 31 | public int WorkProcessedCount = 0; 32 | private bool _enabled = false; 33 | public bool DoWorkDuringIdle { get; set; } = true; 34 | public bool DoWorkDuringProgress { get; set; } = true; 35 | 36 | public bool Enabled 37 | { 38 | get => _enabled; 39 | set 40 | { 41 | 42 | if (value) 43 | Attach(); 44 | else 45 | Detach(); 46 | } 47 | } 48 | 49 | public BackgroundProcessor(Action action, UIApplication uiApp) 50 | { 51 | Action = action; 52 | UIApp = uiApp; 53 | Attach(); 54 | } 55 | 56 | public void Detach() 57 | { 58 | if (!_enabled) 59 | return; 60 | App.ProgressChanged -= App_ProgressChanged; 61 | UIApp.Idling -= UiApp_Idling; 62 | _enabled = true; 63 | } 64 | 65 | public void Attach() 66 | { 67 | if (_enabled) 68 | return; 69 | App.ProgressChanged += App_ProgressChanged; 70 | UIApp.Idling += UiApp_Idling; 71 | _enabled = true; 72 | } 73 | 74 | private void App_ProgressChanged(object sender, ProgressChangedEventArgs e) 75 | { 76 | if (!DoWorkDuringProgress || PauseProcessing) 77 | return; 78 | ProcessWork(); 79 | } 80 | 81 | public void Dispose() 82 | { 83 | ExceptionEvent = null; 84 | Detach(); 85 | } 86 | 87 | private void UiApp_Idling(object sender, Autodesk.Revit.UI.Events.IdlingEventArgs e) 88 | { 89 | if (!DoWorkDuringIdle || PauseProcessing) 90 | return; 91 | ProcessWork(); 92 | if (ExecuteNextIdleImmediately) 93 | e.SetRaiseWithoutDelay(); 94 | } 95 | 96 | /// 97 | /// Note that this can be called outside of the Revit API context. 98 | /// 99 | public void EnqueueWork(IEnumerable items) 100 | { 101 | foreach (var item in items) 102 | Queue.Enqueue(item); 103 | } 104 | 105 | public bool HasWork 106 | => Queue.Count > 0; 107 | 108 | public void ClearWork() 109 | => Queue.Clear(); 110 | 111 | public void ResetStats() 112 | { 113 | WorkStopwatch.Reset(); 114 | WorkProcessedCount = 0; 115 | } 116 | 117 | public void ProcessWork(bool doAllNow = false) 118 | { 119 | var startedTime = WorkStopwatch.ElapsedMilliseconds; 120 | WorkStopwatch.Start(); 121 | try 122 | { 123 | while (HasWork) 124 | { 125 | var item = Queue.Dequeue(); 126 | Action(item); 127 | WorkProcessedCount++; 128 | 129 | var elapsedTime = WorkStopwatch.ElapsedMilliseconds - startedTime; 130 | if (elapsedTime > MaxMSecPerBatch && !doAllNow) 131 | break; 132 | } 133 | } 134 | catch (Exception ex) 135 | { 136 | ExceptionEvent?.Invoke(this, ex); 137 | } 138 | finally 139 | { 140 | WorkStopwatch.Stop(); 141 | } 142 | } 143 | } 144 | } -------------------------------------------------------------------------------- /src/Rvt.Background/BackgroundProcessorCommand.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Globalization; 3 | using System.Linq; 4 | using Autodesk.Revit.DB.Events; 5 | using Autodesk.Revit.UI; 6 | 7 | namespace Rvt.Background 8 | { 9 | /// 10 | /// This is a command for use with Bowerbird. 11 | /// 12 | public class BackgroundProcessorCommand 13 | { 14 | public UIApplication App; 15 | public string Name => "Background Processor"; 16 | public BackgroundProcessor Processor; 17 | public BackgroundForm Form; 18 | public ExternalEvent EnableProcessorEvent; 19 | public ExternalEvent DisableProcessorEvent; 20 | public ExternalEvent DisposeProcessorEvent; 21 | public ExternalEvent DoSomeWorkEvent; 22 | public ExternalEvent DoAllWorkEvent; 23 | 24 | public void Execute(object arg) 25 | { 26 | App = arg as UIApplication; 27 | Processor = new BackgroundProcessor(Process, App); 28 | Form = new BackgroundForm(); 29 | Form.Update(); 30 | Form.Show(); 31 | Form.FormClosing += Form_FormClosing; 32 | Form.checkBoxProcessDuringIdle.Click += CheckBoxProcessDuringIdle_Click; 33 | Form.checkBoxProcessDuringProgress.Click += CheckBoxProcessDuringProgress_Click; 34 | Form.checkBoxIdleEventNoDelay.Click += CheckBoxIdleEventNoDelay_Click; 35 | Form.checkBoxEnabled.Click += CheckBoxEnabled_Click; 36 | Form.checkBoxPaused.Click += CheckBoxPauseProcessingOnClick; 37 | Form.numericUpDownMsecPerBatch.ValueChanged += NumericUpDownMsecPerBatch_ValueChanged; 38 | Form.buttonClearWork.Click += ButtonClearWork_Click; 39 | Form.buttonResetStats.Click += ButtonResetStats_Click; 40 | Form.buttonProcessAll.Click += ButtonProcessAll_Click; 41 | Form.buttonProcessSome.Click += ButtonProcessSome_Click; 42 | EnableProcessorEvent = ApiContext.CreateEvent(_ => Processor.Enabled = true, "Enable processor"); 43 | DisableProcessorEvent = ApiContext.CreateEvent(_ => Processor.Enabled = false, "Disable processor"); 44 | 45 | // Very important that we don't forget to disconnect Revit events in Bowerbird, otherwise we have to restart 46 | App.Application.DocumentChanged += ApplicationOnDocumentChanged; 47 | 48 | DisposeProcessorEvent = ApiContext.CreateEvent(_ => 49 | { 50 | // Cleaning up the Revit event 51 | App.Application.DocumentChanged -= ApplicationOnDocumentChanged; 52 | Processor.Dispose(); 53 | Processor = null; 54 | }, "Disposing processor and closing form"); 55 | 56 | DoSomeWorkEvent = ApiContext.CreateEvent(_ => Processor.ProcessWork(), "Processing some work"); 57 | DoAllWorkEvent = ApiContext.CreateEvent(_ => Processor.ProcessWork(true), "Processing all work"); 58 | } 59 | 60 | private void ButtonProcessSome_Click(object sender, EventArgs e) 61 | { 62 | DoSomeWorkEvent.Raise(); 63 | } 64 | 65 | private void ButtonProcessAll_Click(object sender, EventArgs e) 66 | { 67 | DoAllWorkEvent.Raise(); 68 | } 69 | 70 | private void CheckBoxEnabled_Click(object sender, EventArgs e) 71 | { 72 | if (Form.checkBoxEnabled.Checked) 73 | EnableProcessorEvent.Raise(); 74 | else 75 | DisableProcessorEvent.Raise(); 76 | } 77 | 78 | private void CheckBoxProcessDuringProgress_Click(object sender, EventArgs e) 79 | { 80 | Processor.DoWorkDuringProgress = Form.checkBoxProcessDuringProgress.Checked; 81 | } 82 | 83 | private void CheckBoxProcessDuringIdle_Click(object sender, EventArgs e) 84 | { 85 | Processor.DoWorkDuringIdle = Form.checkBoxProcessDuringIdle.Checked; 86 | } 87 | 88 | private void Form_FormClosing(object sender, System.Windows.Forms.FormClosingEventArgs e) 89 | { 90 | DisposeProcessorEvent.Raise(); 91 | } 92 | 93 | private void ButtonResetStats_Click(object sender, EventArgs e) 94 | { 95 | Processor.ResetStats(); 96 | UpdateForm(); 97 | } 98 | 99 | private void ButtonClearWork_Click(object sender, EventArgs e) 100 | { 101 | Processor.ClearWork(); 102 | UpdateForm(); 103 | } 104 | 105 | private void NumericUpDownMsecPerBatch_ValueChanged(object sender, EventArgs e) 106 | { 107 | Processor.MaxMSecPerBatch = (int)Form.numericUpDownMsecPerBatch.Value; 108 | } 109 | 110 | private void CheckBoxPauseProcessingOnClick(object sender, EventArgs e) 111 | { 112 | Processor.PauseProcessing = Form.checkBoxPaused.Checked; 113 | } 114 | 115 | private void CheckBoxIdleEventNoDelay_Click(object sender, EventArgs e) 116 | { 117 | Processor.ExecuteNextIdleImmediately = Form.checkBoxIdleEventNoDelay.Checked; 118 | } 119 | 120 | private void ApplicationOnDocumentChanged(object sender, DocumentChangedEventArgs e) 121 | { 122 | Processor.EnqueueWork(e.GetAddedElementIds().Select(eid => eid.IntegerValue)); 123 | Processor.EnqueueWork(e.GetDeletedElementIds().Select(eid => eid.IntegerValue)); 124 | Processor.EnqueueWork(e.GetModifiedElementIds().Select(eid => eid.IntegerValue)); 125 | UpdateForm(); 126 | } 127 | 128 | public void Process(int id) 129 | { 130 | UpdateForm(); 131 | } 132 | 133 | public void UpdateForm() 134 | { 135 | Form.textBoxCpuTimeOnWork.Text = (Processor.WorkStopwatch.ElapsedMilliseconds / 1000f).ToString(CultureInfo.InvariantCulture); 136 | Form.textBoxItemsQueued.Text = Processor.Queue.Count.ToString(); 137 | Form.textBoxWorkItemProcessed.Text = Processor.WorkProcessedCount.ToString(); 138 | Form.checkBoxPaused.Checked = Processor.PauseProcessing; 139 | Form.checkBoxEnabled.Checked = Processor.Enabled; 140 | Form.checkBoxProcessDuringIdle.Checked = Processor.DoWorkDuringIdle; 141 | Form.checkBoxProcessDuringProgress.Checked = Processor.DoWorkDuringProgress; 142 | Form.checkBoxIdleEventNoDelay.Checked = Processor.ExecuteNextIdleImmediately; 143 | Form.numericUpDownMsecPerBatch.Value = Processor.MaxMSecPerBatch; 144 | System.Windows.Forms.Application.DoEvents(); 145 | } 146 | } 147 | } -------------------------------------------------------------------------------- /src/Rvt.Background/Rvt.Background.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | net48 4 | true 5 | net48 6 | true 7 | 8 | 9 | 10 | 11 | ..\..\..\ara3d\vendor\Revit\2023\RevitAPI.dll 12 | 13 | 14 | ..\..\..\ara3d\vendor\Revit\2023\RevitAPIUI.dll 15 | 16 | 17 | 18 | 19 | --------------------------------------------------------------------------------