/// <summary>
/// Clears the expression in the textbox
/// </summary>
private void btnClear_Click(object sender, EventArgs e)
{
if (richTextBox1.Text.ToLower() == "<no expression>")
{
if (MessageBox.Show("Remove labels?", LegendControl.Legend.AppName,
MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
{
MapWinGIS.Labels lb = m_shapefile.Labels;
for (int i = 0; i < lb.Count; i++)
{
for (int j = 0; j < lb.get_NumParts(i); j++)
{
lb.get_Label(i, j).Text = "";
}
}
listBox1.Enabled = true;
btnPlus.Enabled = true;
btnQuotes.Enabled = true;
btnNewLine.Enabled = true;
richTextBox1.Enabled = true;
richTextBox1.Text = "";
lb.SavingMode = tkSavingMode.modeXMLOverwrite;
lb.Synchronized = true;
if (!lb.Synchronized)
{
lb.Clear();
}
}
}
else
{
richTextBox1.Text = "";
}
}
/// <summary>
/// Generates labels with specified positions
/// </summary>
private void btnOk_Click(object sender, EventArgs e)
{
// callback and wait cursor
ICallback cBackOld = m_shapefile.GlobalCallback;
Callback cback = new Callback();
m_shapefile.GlobalCallback = cback;
this.Enabled = false;
this.Cursor = Cursors.WaitCursor;
MapWinGIS.Labels lb = m_shapefile.Labels;
tkLabelPositioning positioning = get_LabelPositioning();
lb.LineOrientation = (tkLineLabelOrientation)cboLineOrientation.SelectedIndex;
try
{
// generation
m_shapefile.GenerateLabels(-1, positioning, !chkLabelEveryPart.Checked);
m_shapefile.Labels.SavingMode = tkSavingMode.modeXMLOverwrite; // .lbl file should be updated
ShpfileType type = Globals.ShapefileType2D(m_shapefile.ShapefileType);
if (type == ShpfileType.SHP_POINT || type == ShpfileType.SHP_MULTIPOINT)
{
if (optAlignBottomCenter.Checked)
{
m_alignment = tkLabelAlignment.laBottomCenter;
}
if (optAlignBottomLeft.Checked)
{
m_alignment = tkLabelAlignment.laBottomLeft;
}
if (optAlignBottomRight.Checked)
{
m_alignment = tkLabelAlignment.laBottomRight;
}
if (optAlignCenter.Checked)
{
m_alignment = tkLabelAlignment.laCenter;
}
if (optAlignCenterLeft.Checked)
{
m_alignment = tkLabelAlignment.laCenterLeft;
}
if (optAlignCenterRight.Checked)
{
m_alignment = tkLabelAlignment.laCenterRight;
}
if (optAlignTopCenter.Checked)
{
m_alignment = tkLabelAlignment.laTopCenter;
}
if (optAlignTopLeft.Checked)
{
m_alignment = tkLabelAlignment.laTopLeft;
}
if (optAlignTopRight.Checked)
{
m_alignment = tkLabelAlignment.laTopRight;
}
}
// updating references to categories
if (lb.NumCategories > 0)
{
for (int i = 0; i < lb.Count; i++)
{
MapWinGIS.Label label = lb.get_Label(i, 0);
label.Category = m_shapefile.get_ShapeCategory(i);
}
}
}
finally
{
this.Enabled = true;
this.Cursor = Cursors.Default;
cback.Clear();
m_shapefile.GlobalCallback = cBackOld;
}
}