/// <summary>
/// Handling the clicking on the category preview
/// </summary>
void m_legend_LayerCategoryClicked(int Handle, int Category)
{
if (m_legend == null || m_legend.m_Map == null)
{
return;
}
MapWinGIS.Shapefile sf = m_legend.m_Map.get_Shapefile(Handle);
if (sf != null)
{
MapWinGIS.ShapefileCategory cat = sf.Categories.get_Item(Category);
if (cat != null)
{
Form form = FormHelper.GetSymbologyForm(m_legend, Handle, sf.ShapefileType, cat.DrawingOptions, false);
if (form.ShowDialog() == DialogResult.OK)
{
// do something
}
form.Dispose();
}
}
}
/// <summary>
/// 填充分级渲染属性到grid中
/// </summary>
private void RefreshCategoriesList()
{
dgvCategories.SuspendLayout();
dgvCategories.Rows.Clear();
int numCategories = _shapefile.Categories.Count;
if (numCategories == 0)
{
dgvCategories.ColumnHeadersVisible = false;
dgvCategories.ResumeLayout();
RefreshControlsState(null, null);
return;
}
else
{
dgvCategories.ColumnHeadersVisible = true;
}
dgvCategories.Rows.Add(numCategories);
bool noEventsState = _noEvents;
_noEvents = true;
// 计算每个目录的数量
Dictionary <int, int> values = new Dictionary <int, int>(); // 键为目录的id,值为数量
int category;
for (int i = 0; i < _shapefile.NumShapes; i++)
{
category = _shapefile.get_ShapeCategory(i);
if (values.ContainsKey(category))
{
values[category] += 1;
}
else
{
values.Add(category, 1);
}
}
for (int i = 0; i < numCategories; i++)
{
MapWinGIS.ShapefileCategory cat = _shapefile.Categories.get_Item(i);
dgvCategories[CMN_CATEGORYID, i].Value = i;
dgvCategories[CMN_VISIBLE, i].Value = cat.DrawingOptions.Visible;
Bitmap bitmap = new Bitmap(dgvCategories.Columns[CMN_STYLE].Width - 20, dgvCategories.Rows[i].Height - 8);
//Graphics g = Graphics.FromImage(bitmap);
//bitmap = _legend.Snapshot();
//pictureBox.Image = bitmap;
dgvCategories[CMN_STYLE, i].Value = bitmap;
//dgvCategories[CMN_STYLE, i].Value = new Bitmap(@"D:\MyDownloads\Download\earth.png");
dgvCategories[CMN_NAME, i].Value = cat.Name;
dgvCategories[CMN_EXPRESSION, i].Value = cat.Expression;
if (values.ContainsKey(i))
{
dgvCategories[CMN_COUNT, i].Value = values[i];
}
else
{
dgvCategories[CMN_COUNT, i].Value = 0;
}
}
dgvCategories.ResumeLayout();
for (int i = 1; i < dgvCategories.Columns.Count; i++)
{
if (i != CMN_STYLE && i != CMN_COUNT)
{
dgvCategories.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells);
dgvCategories.Columns[i].Width += 10;
}
}
RefreshControlsState(null, null);
_noEvents = noEventsState;
}
/// <summary>
/// Fills the data grid view with information about label categories
/// </summary>
private void RefreshCategoriesList()
{
dgvCategories.SuspendLayout();
dgvCategories.Rows.Clear();
int numCategories = _shapefile.Categories.Count;
if (numCategories == 0)
{
dgvCategories.ColumnHeadersVisible = false;
dgvCategories.ResumeLayout();
RefreshControlsState(null, null);
return;
}
else
{
dgvCategories.ColumnHeadersVisible = true;
}
dgvCategories.Rows.Add(numCategories);
bool noEventsState = _noEvents;
_noEvents = true;
// calculating the number of shapes per category
Dictionary <int, int> values = new Dictionary <int, int>(); // id of category, count
int category;
for (int i = 0; i < _shapefile.NumShapes; i++)
{
category = _shapefile.get_ShapeCategory(i);
if (values.ContainsKey(category))
{
values[category] += 1;
}
else
{
values.Add(category, 1);
}
}
for (int i = 0; i < numCategories; i++)
{
MapWinGIS.ShapefileCategory cat = _shapefile.Categories.get_Item(i);
dgvCategories[CMN_CATEGORYID, i].Value = i;
dgvCategories[CMN_VISIBLE, i].Value = cat.DrawingOptions.Visible;
dgvCategories[CMN_STYLE, i].Value = new Bitmap(dgvCategories.Columns[CMN_STYLE].Width - 20, dgvCategories.Rows[i].Height - 8);
dgvCategories[CMN_NAME, i].Value = cat.Name;
dgvCategories[CMN_EXPRESSION, i].Value = cat.Expression;
if (values.ContainsKey(i))
{
dgvCategories[CMN_COUNT, i].Value = values[i];
}
else
{
dgvCategories[CMN_COUNT, i].Value = 0;
}
}
dgvCategories.ResumeLayout();
// autosizing columns
for (int i = 1; i < dgvCategories.Columns.Count; i++)
{
if (i != CMN_STYLE && i != CMN_COUNT)
{
dgvCategories.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells);
dgvCategories.Columns[i].Width += 10;
}
}
RefreshControlsState(null, null);
_noEvents = noEventsState;
}
