* dia/CanvasItem.custom: Removed method to create CanvasImage
* sample/sample.cs: Added section for programatically
canvas item creation.
svn path=/trunk/diacanvas-sharp/; revision=16601
This commit is contained in:
Martin Willemoes Hansen
Родитель
33eced1561
Коммит
584bd5bde6
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@ -5,7 +5,10 @@
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* dia/CanvasLine.custom: Added, default ctor
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* dia/CanvasBox.custom: Added, default ctor
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* dia/CanvasImage.custom: Added, default ctor
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* dia/CanvasItem.custom: Removed method to create CanvasImage
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* sources/Dia.metadata: rule disable default constructor added
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* sample/sample.cs: Added section for programatically
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canvas item creation.
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2003-07-22 Martin Willemoes Hansen <mwh@sysrq.dk>
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50
PROBLEMS
50
PROBLEMS
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@ -30,3 +30,53 @@ Property has unknown Type DiaCanvasItemHandles in Object Dia.CanvasItem
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Maybe make a real type in c or make a manual wrapper class in C#
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================================================================================
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Character encoding problem
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--------------------------
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When calling DiaPlacementTool (DiaCanvasImage.GType ...) the following error
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occours:
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(<unknown>:1938): GLib-GObject-WARNING **: gobject.c:663: object class `DiaCanvasImage' has no property named `'
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(<unknown>:1938): GLib-GObject-WARNING **: gobject.c:663: object class `DiaCanvasImage' has no property named `'
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(<unknown>:1938): GLib-GObject-WARNING **: gobject.c:663: object class `DiaCanvasImage' has no property named `'
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(<unknown>:1938): GdkPixbuf-CRITICAL **: file gdk-pixbuf.c: line 389 (gdk_pixbuf_get_height): assertion `pixbuf != NULL' failed
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(<unknown>:1938): GdkPixbuf-CRITICAL **: file gdk-pixbuf.c: line 373 (gdk_pixbuf_get_width): assertion `pixbuf != NULL' failed
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** (<unknown>:1938): CRITICAL **: file dia-shape.c: line 1455 (dia_shape_image): assertion `GDK_IS_PIXBUF (image)' failed
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Unhandled Exception: System.NullReferenceException: A null value was found where an object instance was required
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in (unmanaged) 06 Gtk.Application:gtk_main ()
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in <0x00004> 06 Gtk.Application:gtk_main ()
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in <0x00007> 00 Gtk.Application:Run ()
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in <0x0002b> 00 .Sample:Main ()
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It probably is a character encoding problem from Uni16 to utf-8/ascii.
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================================================================================
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DiaPoint Boxing problem
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-----------------------
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The following code:
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CanvasLine line = new CanvasLine();
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line.HeadPos = new Dia.Point (50, 50);
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produces this:
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Unhandled Exception: System.NullReferenceException: A null value was found where an object instance was required
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in (unmanaged) 06 GLib.Object:g_object_set_property (intptr,string,intptr)
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in <0x00004> 06 GLib.Object:g_object_set_property (intptr,string,intptr)
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in <0x00040> 00 GLib.Object:SetProperty (string,GLib.Value)
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in <0x000bc> 00 Dia.CanvasLine:set_HeadPos (Dia.Point)
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in <0x000e5> 00 .Sample:CreateItemsProgramatically ()
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in <0x001a5> 00 .Sample:.ctor ()
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in <0x00023> 00 .Sample:Main ()
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It might has something to do with how the DiaPoint is boxed .. the boxed version
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does not have a valid .Handle
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@ -12,18 +12,3 @@ extern static IntPtr dia_canvas_item_create (uint object_type, IntPtr dummy);
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public static CanvasItem ItemCreate (uint object_type) {
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return new CanvasItem (dia_canvas_item_create (object_type, IntPtr.Zero));
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}
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[DllImport("diacanvas2")]
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extern static IntPtr dia_canvas_item_create (uint object_type,
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string pixbufs, IntPtr pixbuf,
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string widths, double width,
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string heights, double height,
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IntPtr dummy);
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public static CanvasItem ItemCreate (uint object_type, Gdk.Pixbuf pixbuf) {
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return new CanvasItem (dia_canvas_item_create (object_type,
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"image", pixbuf.Handle,
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"width", pixbuf.Width,
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"height", pixbuf.Height,
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IntPtr.Zero));
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}
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@ -25,24 +25,6 @@
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</Interfaces>
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<Attributes />
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<Members>
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<Member MemberName="ItemCreate">
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<MemberSignature Language="C#" Value="public static Dia.CanvasItem ItemCreate (uint object_type, Gdk.Pixbuf pixbuf);" />
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<MemberType>Method</MemberType>
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<ReturnValue>
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<ReturnType>Dia.CanvasItem</ReturnType>
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</ReturnValue>
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<Parameters>
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<Parameter Name="object_type" Type="System.UInt32" />
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<Parameter Name="pixbuf" Type="Gdk.Pixbuf" />
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</Parameters>
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<Docs>
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<summary>To be added</summary>
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<param name="object_type">a <see cref="T:System.UInt32" /></param>
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<param name="pixbuf">a <see cref="T:Gdk.Pixbuf" /></param>
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<returns>a <see cref="T:Dia.CanvasItem" /></returns>
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<remarks>To be added</remarks>
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</Docs>
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</Member>
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<Member MemberName="ItemCreate">
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<MemberSignature Language="C#" Value="public static Dia.CanvasItem ItemCreate (uint object_type);" />
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<MemberType>Method</MemberType>
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@ -62,14 +62,15 @@ public class Sample {
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canvas.Root.Add (box);
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CanvasImage image = new CanvasImage();
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Pixbuf pixbuf = new Pixbuf (null, "pixmaps/logo.png");
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CanvasItem item = CanvasItem.ItemCreate (CanvasImage.GType, pixbuf);
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item.Move (50, 50);
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canvas.Root.Add (item);
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image.Image = pixbuf;
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image.Height = pixbuf.Height;
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image.Width = pixbuf.Width;
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image.Move (50, 50);
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canvas.Root.Add (image);
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view.UnselectAll();
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CanvasViewItem vitem = view.FindViewItem (item);
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CanvasViewItem vitem = view.FindViewItem (image);
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view.Focus (vitem);
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}
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