示例#1
0
        /// <summary>
        /// Gets the attributes for a new label.
        /// </summary>
        /// <param name="id">The ID that will be assigned to the new label</param>
        /// <returns>True if attributes entered OK (m_LastRow defined).</returns>
        bool GetAttributes(string id)
        {
            // There HAS to be a schema.
            if (m_Schema==null)
                return false;

            // Although unlikely, it is conceivable that the attributes have already
            // been loaded into the database. In that case, display the existing
            // attributes for editing.

            AttributeDataForm dial;

            DataRow[] existingData = AttributeData.FindByKey(m_Schema, id);
            if (existingData.Length > 0)
                dial = new AttributeDataForm(m_Schema, existingData[0]);
            else
                dial = new AttributeDataForm(m_Schema, id);

            if (dial.ShowDialog() == DialogResult.OK)
                m_LastRow = dial.Data;
            else
                m_LastRow = null;

            dial.Dispose();
            return (m_LastRow != null);
        }
示例#2
0
        /// <summary>
        /// Displays database attributes so that they can be edited by the user.
        /// </summary>
        /// <param name="r">The row of interest</param>
        /// <returns>True if any changes were saved to the database</returns>
        internal static bool Update(Row r)
        {
            // If the row is associated with any RowText, ensure it is removed from
            // the spatial index NOW (if we wait until the edit has been completed,
            // it's possible we won't be able to update the index properly)
            TextFeature[] text = r.Id.GetRowText();
            EditingIndex index = CadastralMapModel.Current.EditingIndex;
            bool isChanged = false;

            try
            {
                // Remove the text from the spatial index (but see comment below)
                foreach (TextFeature tf in text)
                    index.RemoveFeature(tf);

                // Display the attribute entry dialog
                AttributeDataForm dial = new AttributeDataForm(r.Table, r.Data);
                isChanged = (dial.ShowDialog() == DialogResult.OK);
                dial.Dispose();

                if (isChanged)
                {
                    IDataServer ds = EditingController.Current.DataServer;
                    if (ds == null)
                        throw new InvalidOperationException("No database available");

                    ds.SaveRow(r.Data);
                }
            }

            finally
            {
                // Ensure text has been re-indexed... actually, this is likely to be
                // redundant, because nothing here has actually altered the stored
                // width and height of the text (if the attributes have become more
                // verbose, they'll just be scrunched up a bit tighter). The text
                // metrics probably should be reworked (kind of like AutoSize for
                // Windows labels), but I'm not sure whether this demands a formal
                // editing operation.

                foreach (TextFeature tf in text)
                    index.AddFeature(tf);

                // Re-display the text if any changes have been saved
                if (isChanged)
                {
                    ISpatialDisplay display = EditingController.Current.ActiveDisplay;
                    display.Redraw();
                }
            }

            return isChanged;
        }