readme.htm

一个不错的画图控件, 大家可以

              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="DraggingBounds"></A>DraggingBounds: TRect </FONT></B><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif" COLOR="#990000"><SUP>(Read-Only)</SUP></FONT><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
                    </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Specifies the smallest visual bounding rectangle of the graph objects being dragged in graph coordinates.</FONT></TD>
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              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="DraggingObjects"></A>DraggingObjects: <A HREF="#TGraphObjectList">TGraphObjectList</A><BR>
                </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Contains the list of graph objects being dragged. The first object in the list is source of the drag, and the rest are objects following the drag. </FONT></TD>
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              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="DragSource" ID="DragSource"></A>DragSource: <A HREF="#TGraphObject">TGraphObject</A> </FONT></B><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif" COLOR="#990000"><SUP>(Read-Only)</SUP></FONT><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
              </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Specifies the object being dragged.</FONT></TD>
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              <TD>
                <P><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="DrawOrder" ID="DrawOrder"></A>DrawOrder: TGraphDrawOrder<BR>
      TDrawOrder = (doDefault, doNodesOnTop, doLinksOnTop)</B></FONT><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
      Determines the z-order of objects.</FONT> </P>
                <TABLE WIDTH="90%" BORDER="0" CELLSPACING="5" CELLPADDING="0" ALIGN="CENTER">
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                    <TD WIDTH="15%" VALIGN="TOP"><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>doDefault</B></FONT></TD>
                    <TD WIDTH="20">&nbsp;</TD>
                    <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">The objects draw as they ordered in the <A HREF="#Objects">Objects</A> list. </FONT></TD>
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                    <TD WIDTH="15%" VALIGN="TOP"><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>doNodesOnTop</B></FONT></TD>
                    <TD WIDTH="20">&nbsp;</TD>
                    <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">The nodes appear on top of the links.</FONT></TD>
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                    <TD WIDTH="15%" VALIGN="TOP"><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>doLinksOnTop</B></FONT></TD>
                    <TD WIDTH="20">&nbsp;</TD>
                    <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"> The links appear on top of the nodes.</FONT></TD>
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                </TABLE>
                <BR>
              </TD>
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              <TD><FONT SIZE="2"><STRONG><FONT FACE="Verdana, Arial, Helvetica, sans-serif"><A NAME="FixedScrollBars"></A>FixedScrollBars: Boolean</FONT></STRONG> <FONT FACE="Verdana, Arial, Helvetica, sans-serif"><BR>
                Determines how range of scroll bars should be calculated. When FixedScrollBars is False, the range of scroll bars determines using the graph bounding rectangle, otherwise the range is calculated using graph constraints bounding rectangle.</FONT></FONT> </TD>
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            <TR> 
              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="GraphBounds"></A>GraphBounds: 
                TRect </FONT></B><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif" COLOR="#990000"><SUP>(Read-Only)</SUP></FONT><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
                </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Specifies 
                the smallest visual bounding rectangle of the all visible graph objects 
                in graph coordinates.</FONT></TD>
            </TR>
            <TR>
              <TD><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif"><STRONG><A NAME="GraphConstraints"></A>GraphConstraints: <A HREF="#TGraphConstraints">TGraphConstraints</A></STRONG><BR>
              Specifies the minimum and maximum coordinates of the objects in the graph. </FONT></TD>
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              <TD><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif"><B>GridColor: 
                TColor</B><BR>
                Determines the color of the grid.</FONT></TD>
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            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="GridSize"></A>GridSize: 
                TGridSize<BR>
                TGridSize = 4..128<BR>
                </B>Determines the grid spacing in graph's unit along the x- and 
                y-axis.</FONT></TD>
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            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="HideSelection"></A><B>HideSelection: 
                Boolean</B><BR>
                Determines whether the visual indication of the selected grpah 
                objects remains when focus shifts to another control.</FONT></TD>
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            <TR> 
              <TD> 
                <P><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>HorzScrollBar: 
                  <A HREF="#TGraphScrollBar">TGraphScrollBar</A></B><BR>
                  Represents the horizontal scroll bar for the scrolling the graph. 
                  </FONT></P>
              </TD>
            </TR>
            <TR>
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="LockLinks"></A>LockLinks: Boolean</B><BR>
    Indicates whether the user can move  graph links by mouse or keyboard.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="LockNodes"></A>LockNodes: 
                Boolean</B><BR>
                Indicates whether the user can move or resize graph nodes by 
                mouse or keyboard.</FONT></TD>
            </TR>
            <TR>
              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="ObjectAtCursor" ID="ObjectAtCursor"></A>ObjectAtCursor: <A HREF="#TGraphObject">TGraphObject</A> </FONT></B><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif" COLOR="#990000"><SUP>(Read-Only)</SUP></FONT><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
                    </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Specifies the last object found under the mouse cursor.</FONT></TD>
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            <TR> 
              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="Objects"></A>Objects: 
                <A HREF="#TGraphObjectList">TGraphObjectList</A><BR>
                </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Contains 
                the list of graph objects in the graph.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>ObjectPopupMenu: 
                TPopupMenu</B><BR>
                Identifies the pop-up menu associated with the graph's objects. 
                </FONT></TD>
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            <TR> 
              <TD> 
                <P><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>MarkerColor: 
                  TColor</B><BR>
                  Determines the color of the selection marker.</FONT></P>
              </TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>MarkerSize: 
                TMarkerSize</B><BR>
                <B>TMarkerSize = 3..9</B><BR>
                Determines the size of the selection marker in pixels.</FONT></TD>
            </TR>
            <TR> 
              <TD> <FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="MinNodeSize"></A>MinNodeSize: 
                Word</B><BR>
                Specifies the minimum nodes' with and height in pixels.</FONT></TD>
            </TR>
            <TR> 
              <TD> <FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>Modified: 
                Boolean</B><BR>
                Indicates whether the graph is modified.</FONT></TD>
            </TR>
            <TR> 
              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">SelectedObjects: 
                <A HREF="#TGraphObjectList">TGraphObjectList</A><BR>
                </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Contains 
                the list of selected graph objects in the graph.</FONT></TD>
            </TR>
            <TR> 
              <TD><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><A NAME="SelectionBounds"></A>SelectionBounds: 
                TRect </FONT></B><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif" COLOR="#990000"><SUP>(Read-Only)</SUP></FONT><B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><BR>
                </FONT></B><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2">Specifies 
                the smallest visual bounding rectangle of the selected graph objects 
                in graph coordinates.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>ShowGrid: 
                Boolean</B><BR>
                Indicates whether the control shows dot grids on the designer.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>ShowHiddenObjects: 
                Boolean</B><BR>
                Indicates whether the control shows graph objects, which are not 
                vissible.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B><A NAME="SnapToGrid"></A>SnapToGrid: 
                Boolean</B><BR>
                Indicates whether the control automatically aligns graph objects 
                on the designer with the nearest gridline.</FONT></TD>
            </TR>
            <TR>
              <TD><FONT SIZE="2" FACE="Verdana, Arial, Helvetica, sans-serif"><STRONG><A NAME="Transparent"></A>Transparent: Boolean</STRONG> <BR>
              Specifies whether the background of the control is transparent.</FONT></TD>
            </TR>
            <TR> 
              <TD><FONT FACE="Verdana, Arial, Helvetica, sans-serif" SIZE="2"><B>VertScrollBar: