The following sample sets multiple styles for selected diagram elements (if style is available and not already set). The sample uses both the UModel API and the UModel IDE Plug-In library and is available in the following file: ..\UModelExamples\IDEPlugIn\Styles\Styles.cs.
The solution also includes two setup projects (in .vdproj format, for 32-bit and 64-bit platforms). The setup installs all necessary files, and registers the IDE plug-in for COM and UModel on your target system, so that the plug-in is automatically loaded when UModel is started the next time.
Notes:
•To build and run the sample, the same requirements as for other UModel IDE Plug-ins apply, see Build and Run the Plug-In.
•Visual Studio setup projects are not supported starting with Visual Studio 2012 and require a separate extension to be opened. See the information messages displayed by the Visual Studio migration wizard for more details.
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using UModelLib;
using UModelPlugInLib;
/*
* Styles sample
* set following styles for selected diagram elements
* Fill Color
* Header Gradient Begin Color
* Header Gradient End Color
* if style is available and not already set
*/
namespace Styles
{
public class UModelStyles : UModelPlugInLib.IUModelPlugIn
{
bool m_bPlugInVersionOK = true; // verify if UModel-API has been changed in a way that a recompile of this plug-in is recommended
#region helpers
protected string GetPlugInPath()
{
string sDLLPath = System.Reflection.Assembly.GetExecutingAssembly().Location;
return System.IO.Path.GetDirectoryName(sDLLPath);
}
#endregion
#region IUModelPlugIn Members
public string GetDescription()
{
return "Styles sample Plug-in for UModel;This Plug-in demonstrates how to change several styles of the selected diagram elements.";
}
public string GetUIModifications()
{
try
{
string sPath = GetPlugInPath();
System.IO.StreamReader myFile = new System.IO.StreamReader(sPath + "\\config.xml");
string sRet = myFile.ReadToEnd();
myFile.Close();
// this replaces the token "**path**" from the XML file with
// the actual installation path of the plug-in to get the image file
return sRet.Replace("**path**", sPath);
}
catch (System.Exception ex)
{
MessageBox.Show("Error in GetUIModifications:" + ex.Message);
throw ex;
}
}
public void OnInitialize(object pUModel)
{
// before processing DDE or batch commands
}
public void OnRunning(object pUModel)
{
// DDE or batch commands are processed; application is fully initialized
// verify if UModel-API has been changed in a way that a recompile of this plug-in is recommended:
IApplication iApp = (IApplication)pUModel;
if (iApp == null || iApp.APIMajorVersion != 5) // this plug-in was compiled for API major version '5'!
{
MessageBox.Show("'Styles': This Plug-in has been made with a previous version of the UModel-API and should be recompiled.\nDisabled Plug-in commands in the meantime.");
m_bPlugInVersionOK = false;
}
}
public void OnShutdown(object pUModel)
{
// application will shutdown; release all unused objects
GC.Collect();
}
public UModelUpdateAction OnUpdateCommand(int nID, object pUModel)
{
UModelUpdateAction action = UModelUpdateAction.UModelUpdateAction_Disable;
if (!m_bPlugInVersionOK)
return action;
// check for "fill red"
if (nID == 3 || nID == 6)
action = OnUpdateSetStyles((IApplication)pUModel);
// check for "fill green"
if (nID == 4 || nID == 7)
action = OnUpdateSetStyles((IApplication)pUModel);
// release unused objects
GC.Collect();
return action;
}
public void OnCommand(int nID, object pUModel)
{
if (!m_bPlugInVersionOK)
return;
// fill red
if (nID == 3 || nID == 6)
OnSetStyles((IApplication)pUModel, "red");
// fill green
if (nID == 4 || nID == 7)
OnSetStyles((IApplication)pUModel, "green");
// release unused objects
GC.Collect();
}
#endregion
#region SetStyles // set styles of selected diagram elements
UModelUpdateAction OnUpdateSetStyles(IApplication pUModel)
{
if (pUModel == null)
return UModelUpdateAction.UModelUpdateAction_Disable;
// get the active document of the application
IDocument iDoc = pUModel.ActiveDocument;
if (iDoc == null)
return UModelUpdateAction.UModelUpdateAction_Disable;
// get the active diagram window
IDiagramWindow iActiveDiagram = iDoc.ActiveDiagramWindow;
if ( iActiveDiagram == null )
return UModelUpdateAction.UModelUpdateAction_Disable;
// get the selected elements on the active diagram
IUMLDataList iSelection = iActiveDiagram.SelectedGuiElements;
if ( iSelection == null )
return UModelUpdateAction.UModelUpdateAction_Disable;
// search all selected elements, if at least one has one of the styles to change
foreach ( IUMLGuiElement iSelGuiElement in iSelection )
{
// verify if it is a GuiVisibleElement (with Styles) and if it may be modified
if ( iSelGuiElement is IUMLGuiVisibleElement && iSelGuiElement.IsEditable )
{
IUMLGuiVisibleElement iVisGuiElement = (IUMLGuiVisibleElement)iSelGuiElement;
if ( iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_FillColor) != null ||
iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_HeaderGradientBeginColor) != null ||
iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_HeaderGradientEndColor) != null )
{
return UModelUpdateAction.UModelUpdateAction_Enable;
}
}
}
// nothing found => disable command
return UModelUpdateAction.UModelUpdateAction_Disable;
}
public void OnSetStyles(IApplication pUModel, string sColor)
{
if (pUModel == null)
return;
// get the active document of the application
IDocument iDoc = pUModel.ActiveDocument;
if (iDoc == null)
return;
// get the active diagram window
IDiagramWindow iActiveDiagram = iDoc.ActiveDiagramWindow;
if (iActiveDiagram == null)
return;
// get the selected elements on the active diagram
IUMLDataList iSelection = iActiveDiagram.SelectedGuiElements;
if (iSelection == null)
return;
try
{
// make all modifications within one UndoStep; start modification here
if (!iDoc.BeginModification())
return;
// search all selected elements, and change the style if the wanted value is not already used (directly applied or through style-chain)
foreach (IUMLGuiElement iSelGuiElement in iSelection)
{
// verify if it is a GuiVisibleElement (with Styles) and if it may be modified
if (iSelGuiElement is IUMLGuiVisibleElement && iSelGuiElement.IsEditable )
{
IUMLGuiVisibleElement iVisGuiElement = (IUMLGuiVisibleElement)iSelGuiElement;
// set Fill Color if possible and not already set
IUMLGuiStyle iStyle = iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_FillColor);
if (iStyle != null && iStyle.UsedValue != sColor)
iStyle.Value = sColor;
// set Header Gradient Begin Color if possible and not already set
iStyle = iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_HeaderGradientBeginColor);
if (iStyle != null && iStyle.UsedValue != sColor)
iStyle.Value = sColor;
// set Header Gradient End Color if possible and not already set
iStyle = iVisGuiElement.Styles.GetStyle(ENUMUMLGuiStyleKind.eUMLGuiStyle_HeaderGradientEndColor);
if (iStyle != null && iStyle.UsedValue != sColor)
iStyle.Value = sColor;
}
}
// do not forget to end modification and finish UndoStep
iDoc.EndModification();
}
catch( System.Exception )
{
// rollback made changes
iDoc.AbortModification();
// add error handling
}
}
#endregion
}
} |