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GooCanvas 0.9 (Aug 13 2007)
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o Added "scale-x" and "scale-y" properties to GooCanvas, so the
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horizontal and vertical scale can be set independently.
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o Added "integer-layout" property to GooCanvas, so all layout can
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be done to the nearest integer (useful for widgets).
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o Added "automatic-bounds", "bounds-from-origin" and
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"bounds-padding" properties, used to calculate the canvas bounds
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o Added "wrap" property to GooCanvasText, to specify how to wrap
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o Added demo code to show how to create very large items.
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o Reduced flicker when scrolling.
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o Fixed crash when changing a GooCanvasPathModel.
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o Fixed crash in animation code.
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o Fixed bug that meant the canvas wasn't redrawn properly when the
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o Fixed problem when calculating item sizes before the canvas is
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o Fixed problems calculating bounds of items with empty fills or
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GooCanvas 0.8 (Apr 3 2007)
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o Added support for "width-for-height" layout - items whose requested
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height changes according to their allocated width (typically text items).
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o Added "background-color" and "background-color-rgb" properties to
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o Added "ellipsize" property to GooCanvasText.
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o Added goo_canvas_item_remove() and goo_canvas_item_model_remove()
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convenience functions to remove an item or model from the canvas.
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o Fixed bug removing widget items.
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o Fixed bug which meant that the fill pattern couldn't be reset to NULL.
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o Fixed the item event signals, so that returning TRUE from a handler
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stops the signal emission.
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o Added a few things that will be needed to support tooltips, when GTK+
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2.12 is available. (Though I don't want to depend on GTK+ 2.12 yet.)
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o Added "const" to arguments, where appropriate.
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GooCanvas 0.7 (Feb 27 2007)
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o Added goo_canvas_get_items_at() and goo_canvas_get_items_in_area() to get
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all the items at a given point or in a given area.
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o Use CAIRO_ANTIALIAS_GRAY as the default antialiasing mode, since that is
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what is recommended by cairo for unhinted text.
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o Added "hint-metrics" style property, so people can use hinted text if they
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want to (though they shouldn't change the canvas scale in that case, as
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the bounds of the text item may become incorrect).
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o Unref all objects in dispose methods rather than finalize, to help bindings.
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o Remove embedded widgets properly.
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o Clip GooCanvasTable children if needed.
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o Set the clip path in goo_canvas_render() if needed.
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o Use the ink rects & the logical rects to calculate the text item bounds.
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o Copied GTK+ build stuff for generating goocanvasmarshal.[hc] and
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goocanvasenumtypes.[hc], so hopefully it is easier to build on Windows.
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o Fixed a few other minor bugs.
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GooCanvas 0.6 (Feb 17 2007)
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o Major rewrite to make the model optional, so people can choose to have
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either a simple canvas or a model/view canvas. The standard items can be
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used in either scenario.
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o Added support for cascading style properties (things like fill color, stroke
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width, font etc.). Properties use a GQuark for a unique identifier, and a
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GValue for the property value, so they are very flexible.
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o Added GooCanvasTable item to layout child items.
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o Made it much easier to create new items, by subclassing GooCanvasItemSimple
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which handles most of the work. See demo/demo-item.c for a simple item.
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o Added support for different units - pixels, points, inches or millimeters,
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and allow setting of vertical and horizontal resolution (dpi).
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o Added workaround for cairo's 16-bit limit, to support large canvases.
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o Added demo/scalability-demo which creates 100,000 items over a large canvas.
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It takes a few seconds to create all the items, but once created it seems
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o Improved the animation code, supporting relative or absolute values for
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the x, y, scale and rotation.
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o Added "clip-path" and "clip-fill-rule" to specify a clip path for an item.
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GooCanvas 0.5 (Oct 10 2006)
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o This was just a development release previewing the new optional model-view
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GooCanvas 0.4 (Aug 24 2006)
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o Many minor changes to support the PyGooCanvas python bindings.
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o Added goo_canvas_view_get_item_view() to get views of particular items,
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to make it easier to setup signal handlers for simple canvases.
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(See demo/simple-demo.c for a demo of this.)
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o Support transforms on item views as well as on items.
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GooCanvas 0.3 (Apr 24 2006)
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o New GooCanvasPath item (similar to SVG path element).
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o Accessibility support.
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o Keyboard focus navigation.
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o Convenience functions for coordinate conversions.
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o Smooth scrolling & zooming.
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o Zoom-independent text layout.
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o Render part or all of canvas to a cairo_t, for ps/pdf output.
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o New "visibility" and "visibility-threshold" properties for items.
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o New "pointer-events" property specifying which parts of items get events.
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GooCanvas 0.2 (Dec 5 2005)
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o Affine transformations for all items.
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o Event handling, including support for pointer grabs.
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o Support for simple animation.
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o Finished port of FooCanvas demo, and added test for pointer grabs.
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GooCanvas 0.1 (Nov 17 2005)
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o Basic items working.
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o Interfaces for items & views.