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| <title>New and Noteworthy in GEF 3.0</title> |
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| <h1>GEF 3.0 - New and Noteworthy</h1> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Rulers and Guides</b></td> |
| <td>GEF viewers can now display accessible rulers along their top and left |
| edges. A ruler can display pixels, centimeters or inches. Guides can be |
| created on the ruler by clicking on an empty spot on the ruler or via its |
| context menu. Parts in the graphical editor can be dragged and attached |
| to the guides. They can also be attached when resizing. Alternatively, snapping |
| can be disabled by holding down the <i>Alt</i> key while dragging. Feedback |
| is shown in the form of a red line when a part is being attached to a guide. |
| <p> |
| <img src="images-30/rulers-guides.gif" alt="Screenshot showing a circuit being attached to a guide" title="Rulers and Guides"></p> |
| <p>Parts that are attached to a guide will then move with the guide.</p> |
| <p> |
| <img src="images-30/guide-drag.gif" alt="Screenshot showing parts being dragged with a guide" title="Dragging Guides"></p> |
| <p>A mechanism is available to show or hide rulers.</p> |
| <p> |
| <img src="images-30/rulers-menu.jpg" alt="Screenshot showing rulers enabled on the view menu" title="View Menu"></p> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Grid</b></td> |
| <td>GEF now provides a grid. Parts can be snapped to a grid during creation, |
| moving or resizing. It is also possible to have connection bendpoints snap |
| to it. (Note that snapping during creation and snapping of connection bendpoints, |
| although possible, have not been implemented in the logic example.) Alternatively, |
| snapping can be disabled by holding down the <i>Alt</i> key while dragging. |
| Grid snapping and visibility are two distinct properties, and it is possible |
| to enable one without the other. Like the rulers, the grid can be turned |
| off, if so desired. |
| <p> |
| <img src="images-30/grid.gif" alt="Screenshot showing a resized part snapping to grid" title="Grid"></p> |
| </td> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Snap to Geometry</b></td> |
| <td>The Snap to Geometry feature allows you to quickly align parts being |
| dragged to other parts in the diagram. Edges of parts being resized can |
| be snapped as well. A blue feedback line shows what the part is snapping |
| to. In the screenshot below, the circuit being dragged is aligning to the |
| vertical center of the topmost circuit, and the bottom of the other two |
| circuits. |
| <p> |
| <img src="images-30/geometry.gif" alt="Screenshot showing the Snap to Geometry feature" title="Snap to Geometry"></p> |
| <p>As with the other snapping features, it can be disabled by holding down |
| <i>Alt</i> while dragging, or can be permanently turned off.</p> |
| </td> |
| </tr> |
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| <td colspan="2"><hr></td> |
| </tr> |
| <tr> |
| <td valign="top" align="right"><b>Constrained Move and Resize</b></td> |
| <td>Holding down the <i>Shift</i> key while moving a part will restrict |
| that part's movement to one of the primary eight directions (N, S, E, W |
| and the intermediaries). Doing the same while resizing will cause a proportionate |
| resize: the height to width ratio will be maintained.<p></p> |
| </td> |
| </tr> |
| <tr> |
| <td colspan="2"><hr></td> |
| </tr> |
| <tr> |
| <td valign="top" align="right"><b>Centered Resize</b></td> |
| <td>Holding down the <i>Ctrl</i> key while resizing will cause a resize |
| to happen in the opposite direction of the drag as well, such that the center |
| of the part being resized will not change after the resize is done. |
| <p> |
| <img src="images-30/centered-resize.gif" alt="Screenshot showing centered resize" title="Centered Resize"></p> |
| </td> |
| </tr> |
| <tr> |
| <td colspan="2"><hr></td> |
| </tr> |
| <tr> |
| <td valign="top" align="right"><b>Cloning</b></td> |
| <td>Holding down the <i>Ctrl</i> key while dragging activates cloning. Instead |
| of moving the parts being dragged, copies of those parts will be created |
| at the new location. During cloning, the cursor will also change to |
| indicate creation. </td> |
| </tr> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Palette View</b></td> |
| <td>GEF 3.0 introduces the Palette View. This allows users to customize |
| the size and placement of the palette, and even close it when not needed. |
| Moreover, that size and placement remains the same between multiple GEF-based |
| editors.</td> |
| </tr> |
| <tr> |
| <td colspan="2"><hr></td> |
| </tr> |
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| <td valign="top" align="right"><b>Fly-out Palette</b></td> |
| <td>For clients that require the palette to be always visible, and to provide |
| further customizability to the end-user, the fly-out palette is also being |
| introduced. The palette flies out over the top of the editor when the user |
| hovers over it (or clicks on it), and auto-hides when not in use. |
| <p> |
| <img src="images-30/flyout-hidden.gif" alt="Screenshot showing the hidden flyout palette" title="Fly-out Palette Hidden"></p> |
| <p>The user can also pin it open, if so desired.</p> |
| <p> |
| <img src="images-30/flyout-context-menu.gif" alt="Screenshot showing the fly-out palette pinned open and its context menu" title="Fly-out Palette Showing"></p> |
| <p>It can be resized, docked on either size of the editor, and is completely |
| accessible. The fly-out is only visible when the palette view is not. It |
| automatically comes up when the palette view is closed (or when the user |
| switches to a perspective in which the view is not open), and disappears |
| when the palette view is opened. The palette state (selection, drawer expansion, |
| etc.) is maintained when switching from the view to the fly-out and vice-versa.</p> |
| </td> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Palette Stacks</b></td> |
| <td> |
| <p>It is now possible to create stacks of entries on the palette. The active |
| entry in the stack is the one visible on the top. A drop-down menu allows |
| changing the active entry. When the palette is in any layout other than |
| list, the drop-down can only be accessed via <i>Alt+Down</i> .</p> |
| <p> |
| <img src="images-30/palette-stack.gif" alt="Screenshot showing a palette stack and its drop-down menu" title="Palette Stack" align="middle"></p> |
| </td> |
| </tr> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Shortest Path Connection Routing</b></td> |
| <td>An automatic connection routing technique, that employs the shortest |
| path algorithm to find paths around obstacles, is now available in GEF. |
| <p> |
| <img src="images-30/shortestPaths.gif" alt="Screenshot showing automatic connection routing" title="Shortest Path Connection Routing Technique"></p> |
| <p>This feature can be activated in the logic example by deselecting everything |
| in the diagram and then changing the connection router via the property |
| sheet.</p> |
| <p> |
| <img src="images-30/propertySheet.gif" alt="Screenshot showing the connection router in the property sheet" title="Property Sheet"></p> |
| </td> |
| </tr> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Panning</b></td> |
| <td>With the PanningSelectionTool, it is possible to pan by moving the mouse |
| while holding down <i>spacebar</i> and <i>mouse button 1</i> (left mouse |
| button). This is demonstrated in the logic example, which uses the |
| PanningSelectionTool as the default tool, instead of the SelectionTool.</td> |
| </tr> |
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| <td colspan="2"><hr></td> |
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| <td valign="top" align="right"><b>Match Size of Figures</b></td> |
| <td>New actions are available that can, with more than one part selected, |
| resize all selected parts to have the same height or width as that of the |
| primary selection (the part that was last selected). |
| <p> |
| <img src="images-30/matchSize.jpg" alt="Screenshot showing the actoins on the view menu" title="Match Width of Figures and Match Height of Figures"></p> |
| </td> |
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| </table> |
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| <img src="images-30/cpy.gif" border="0" alt="Copyright 2000, 2004 IBM Corporation and others." width="324" height="14"> |
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