java - Create a figure using Rectangle class -
i trying create line segment has trough , crust shown below : 
edit : i'm getting line segment figure in outline window not in diagram editor
however i'm not getting wanted . have create line segment using x , y value , width/height rectangle class.
below code : see outline shape method :
package pipenet.diagram.edit.parts; import org.eclipse.draw2d.graphics; import org.eclipse.draw2d.shape; import org.eclipse.draw2d.geometry.rectangle; import org.eclipse.swt.swt; public class line3 extends shape { public line3() { this.setantialias(swt.on); } @override protected void fillshape(graphics graphics) { graphics.pushstate(); graphics.setfillrule(swt.fill_winding); graphics.popstate(); } @override protected void outlineshape(graphics graphics) { rectangle r = getbounds().getcopy(); // v 1 graphics.drawline(r.x, r.y+r.height, r.x, r.y); graphics.drawline(r.x, r.y, r.x+r.width/2, r.y); graphics.drawline(r.x+r.width/2, r.y, r.x+r.width/2, r.y+r.height); graphics.drawline(r.x+r.width/2, r.y+r.height, r.x+r.width, r.y+r.height); graphics.drawline(r.x+r.width, r.y+r.height, r.x+r.width, r.y); } @override public void paintfigure(graphics graphics) { // todo auto-generated method stub super.paintfigure(graphics); } } edit part class :
package pipenet.diagram.edit.parts; import java.util.arraylist; import java.util.collections; import java.util.linkedlist; import java.util.list; import org.eclipse.draw2d.flowlayout; import org.eclipse.draw2d.graphics; import org.eclipse.draw2d.ifigure; import org.eclipse.draw2d.positionconstants; import org.eclipse.draw2d.rectanglefigure; import org.eclipse.draw2d.shape; import org.eclipse.draw2d.stacklayout; import org.eclipse.draw2d.geometry.dimension; import org.eclipse.gef.editpart; import org.eclipse.gef.editpolicy; import org.eclipse.gef.graphicaleditpart; import org.eclipse.gef.commands.command; import org.eclipse.gef.editpolicies.layouteditpolicy; import org.eclipse.gef.editpolicies.nonresizableeditpolicy; import org.eclipse.gef.handles.movehandle; import org.eclipse.gef.requests.createrequest; import org.eclipse.gmf.runtime.diagram.ui.editparts.abstractborderedshapeeditpart; import org.eclipse.gmf.runtime.diagram.ui.editparts.iborderitemeditpart; import org.eclipse.gmf.runtime.diagram.ui.editparts.igraphicaleditpart; import org.eclipse.gmf.runtime.diagram.ui.editpolicies.borderitemselectioneditpolicy; import org.eclipse.gmf.runtime.diagram.ui.editpolicies.editpolicyroles; import org.eclipse.gmf.runtime.diagram.ui.editpolicies.flowlayouteditpolicy; import org.eclipse.gmf.runtime.diagram.ui.editpolicies.resizableshapeeditpolicy; import org.eclipse.gmf.runtime.diagram.ui.figures.borderitemlocator; import org.eclipse.gmf.runtime.draw2d.ui.figures.polylineconnectionex; import org.eclipse.gmf.runtime.emf.type.core.ielementtype; import org.eclipse.gmf.runtime.gef.ui.figures.defaultsizenodefigure; import org.eclipse.gmf.runtime.gef.ui.figures.nodefigure; import org.eclipse.gmf.runtime.notation.view; import org.eclipse.swt.graphics.color; import pipenet.diagram.edit.policies.transitionitemsemanticeditpolicy; import pipenet.diagram.part.pipenetvisualidregistry; import pipenet.diagram.providers.pipenetelementtypes; /** * @generated */ public class transitioneditpart extends abstractborderedshapeeditpart { /** * @generated */ public static final int visual_id = 2001; /** * @generated */ protected ifigure contentpane; /** * @generated */ protected ifigure primaryshape; /** * @generated */ public transitioneditpart(view view) { super(view); } /** * @generated */ protected void createdefaulteditpolicies() { super.createdefaulteditpolicies(); installeditpolicy(editpolicyroles.semantic_role, new transitionitemsemanticeditpolicy()); installeditpolicy(editpolicy.layout_role, createlayouteditpolicy()); // xxx need scr runtime have abstract superclass let children add reasonable editpolicies // removeeditpolicy(org.eclipse.gmf.runtime.diagram.ui.editpolicies.editpolicyroles.connection_handles_role); } /** * @generated */ protected layouteditpolicy createlayouteditpolicy() { flowlayouteditpolicy lep = new flowlayouteditpolicy() { protected editpolicy createchildeditpolicy(editpart child) { view childview = (view) child.getmodel(); switch (pipenetvisualidregistry.getvisualid(childview)) { case transitionnameeditpart.visual_id: return new borderitemselectioneditpolicy() { protected list createselectionhandles() { movehandle mh = new movehandle( (graphicaleditpart) gethost()); mh.setbackgroundcolor(new color(null, 20 ,80 , 90)); mh.getbackgroundcolor(); system.out.print(mh.getbackgroundcolor()); mh.setborder(null); return collections.singletonlist(mh); } }; } editpolicy result = child .geteditpolicy(editpolicy.primary_drag_role); if (result == null) { result = new nonresizableeditpolicy(); } return result; //return super.createchildeditpolicy(child); } protected command createaddcommand(editpart child, editpart after) { return null; } protected command createmovechildcommand(editpart child, editpart after) { return null; } protected command getcreatecommand(createrequest request) { return null; } }; return lep; } /** * @generated */ protected ifigure createnodeshape() { return primaryshape = new line3(); } /** * @generated * * */ // public transitionfigure getprimaryshape() { // return (transitionfigure) primaryshape; // } /** * @generated */ protected void addborderitem(nodefigure borderitemcontainer, iborderitemeditpart borderitemeditpart) { if (borderitemeditpart instanceof transitionnameeditpart) { borderitemlocator locator = new borderitemlocator(getmainfigure(), positionconstants.bottom); locator.setborderitemoffset(new dimension(-2, -2)); borderitemcontainer.add(borderitemeditpart.getfigure(), locator); } else { super.addborderitem(borderitemcontainer, borderitemeditpart); } } /** * @generated // */ protected nodefigure createnodeplate() { defaultsizenodefigure result = new defaultsizenodefigure(240, 240); result.setbackgroundcolor(new color(null , 90 , 90 , 90)); return result; } /** * creates figure edit part. * * body of method not depend on settings in generation model * may safely remove <i>generated</i> tag , modify it. * * @generated */ protected nodefigure createmainfigure() { nodefigure figure= createnodeplate(); figure.setlayoutmanager(new stacklayout()); ifigure shape = createnodeshape(); figure.add(shape); contentpane = setupcontentpane(shape); return figure; } /** * default implementation treats passed figure content pane. * respects layout 1 may have set generated figure. * @param nodeshape instance of generated figure class * @generated */ protected ifigure setupcontentpane(ifigure nodeshape) { return nodeshape; // use nodeshape contentpane } /** * @generated */ public ifigure getcontentpane() { if (contentpane != null) { return contentpane; } return super.getcontentpane(); } /** * @generated */ protected void setforegroundcolor(color color) { if (primaryshape != null) { primaryshape.setforegroundcolor(color); } } /** * @generated */ protected void setbackgroundcolor(color color) { if (primaryshape != null) { primaryshape.setbackgroundcolor(color); } } /** * @generated */ protected void setlinewidth(int width) { if (primaryshape instanceof shape) { ((shape) primaryshape).setlinewidth(width); } } /** * @generated */ protected void setlinetype(int style) { if (primaryshape instanceof shape) { ((shape) primaryshape).setlinestyle(style); } } /** * @generated */ public editpart getprimarychildeditpart() { return getchildbysemantichint(pipenetvisualidregistry .gettype(transitionnameeditpart.visual_id)); } /** * @generated */ public list/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/getmareltypesonsource() { arraylist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/types = new arraylist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/( 1); types.add(pipenetelementtypes.arch_4001); return types; } /** * @generated */ public list/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/getmareltypesonsourceandtarget( igraphicaleditpart targeteditpart) { linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/types = new linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/(); if (targeteditpart instanceof pipenet.diagram.edit.parts.transitioneditpart) { types.add(pipenetelementtypes.arch_4001); } if (targeteditpart instanceof placeeditpart) { types.add(pipenetelementtypes.arch_4001); } return types; } /** * @generated */ public list/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/getmatypesfortarget( ielementtype relationshiptype) { linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/types = new linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/(); if (relationshiptype == pipenetelementtypes.arch_4001) { types.add(pipenetelementtypes.transition_2001); types.add(pipenetelementtypes.place_2002); } return types; } /** * @generated */ public list/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/getmareltypesontarget() { arraylist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/types = new arraylist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/( 1); types.add(pipenetelementtypes.arch_4001); return types; } /** * @generated */ public list/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/getmatypesforsource( ielementtype relationshiptype) { linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/types = new linkedlist/*[org.eclipse.gmf.runtime.emf.type.core.ielementtype]*/(); if (relationshiptype == pipenetelementtypes.arch_4001) { types.add(pipenetelementtypes.transition_2001); types.add(pipenetelementtypes.place_2002); } return types; } // @override // public editpolicy getprimarydrageditpolicy() { // resizableshapeeditpolicy editpolicy = new resizableshapeeditpolicy(); // editpolicy.setresizedirections(positionconstants.south); // editpolicy.setresizedirections(positionconstants.north); // //editpolicy.setdragallowed(false); // // return editpolicy; // } /** * @generated */ public class transitionfigure extends line3{ /** * @generated */ public transitionfigure() { flowlayout layoutthis = new flowlayout(); layoutthis.setstretchminoraxis(true); layoutthis.setminoralignment(flowlayout.align_lefttop); layoutthis.setmajoralignment(flowlayout.align_lefttop); layoutthis.setmajorspacing(15); layoutthis.setminorspacing(15); layoutthis.sethorizontal(true); this.setlayoutmanager(layoutthis); } } }
there 5 lines in figure, you're drawing four. plus you're adding width y-value, draw line tall. should using half of width reach middle of rectangle
since each line connected previous one, can draw lines 1 one, starting previous 1 finished.
how this:
graphics.drawline(r.x, r.y+r.height, r.x, r.y); graphics.drawline(r.x, r.y, r.x+r.width/2, r.y); graphics.drawline(r.x+r.width/2, r.y, r.x+r.width/2, r.y+r.height); graphics.drawline(r.x+r.width/2, r.y+r.height, r.x+r.width, r.y+r.height); graphics.drawline(r.x+r.width, r.y+r.height, r.x+r.width, r.y); 
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