/// <summary>
/// Draws preview on the charts tab
/// </summary>
private void DrawChartsPreview()
{
Rectangle rect = pctCharts.ClientRectangle;
Bitmap bmp = new Bitmap(rect.Width, rect.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
if (_shapefile.Charts.Count > 0 && _shapefile.Charts.NumFields > 0)
{
Graphics g = Graphics.FromImage(bmp);
IntPtr ptr = g.GetHdc();
int width = rect.Width;
int height = rect.Height;
MapWinGIS.Charts charts = _shapefile.Charts;
if (charts.ChartType == MapWinGIS.tkChartType.chtPieChart)
{
charts.DrawChart(ptr.ToInt32(), (width - charts.IconWidth) / 2, (height - charts.IconHeight) / 2, false, Colors.ColorToUInteger(Color.White));
}
else
{
charts.DrawChart(ptr.ToInt32(), (width - charts.IconWidth) / 2, (height - charts.IconHeight) / 2, false, Colors.ColorToUInteger(Color.White));
}
g.ReleaseHdc(ptr);
}
pctCharts.Image = bmp;
}
/// <summary>
/// Sets the properties of the labels based upon user input
/// </summary>
private void UpdateCharts()
{
MapWinGIS.Charts charts = _shapefile.Charts;
charts.Visible = chkChartsVisible.Checked;
charts.ChartType = optChartBars.Checked ? MapWinGIS.tkChartType.chtBarChart : MapWinGIS.tkChartType.chtPieChart;
this.UpdateFieldColors();
DrawChartsPreview();
}
/// <summary>
/// The code for initialization of the charts tab
/// </summary>
private void InitChartsTab()
{
icbChartColorScheme.ComboStyle = ImageComboStyle.ColorSchemeGraduated;
//icbChartColorScheme.ColorSchemes = m_plugin.ChartColors;
if (icbChartColorScheme.Items.Count > 0)
{
icbChartColorScheme.SelectedIndex = 0;
}
MapWinGIS.Charts charts = _shapefile.Charts;
chkChartsVisible.Checked = charts.Visible;
//cboChartVerticalPosition.SelectedIndex = (int)charts.VerticalPosition;
optChartBars.Checked = (charts.ChartType == tkChartType.chtBarChart);
optChartsPie.Checked = (charts.ChartType == tkChartType.chtPieChart);
}
/// <summary>
/// Initializes a new instance of the ChartStyleForm class
/// </summary>
public ChartStyleForm(LegendControl.Legend legend, MapWinGIS.Shapefile sf, bool legendCall, int handle)
{
InitializeComponent();
_shapefile = sf;
_charts = sf.Charts;
m_legend = legend;
_handle = handle;
MapWinGIS.tkSavingMode mode = _charts.SavingMode;
_charts.SavingMode = MapWinGIS.tkSavingMode.modeNone;
_initState = _charts.Serialize();
_charts.SavingMode = mode;
_noEvents = true;
panelPieChart.Top = panelBarChart.Top;
panelPieChart.Left = panelBarChart.Left;
foreach (FontFamily family in FontFamily.Families)
{
cboFontName.Items.Add(family.Name);
}
cboValuesStyle.Items.Clear();
cboValuesStyle.Items.Add("Horizontal");
cboValuesStyle.Items.Add("Vertical");
cboChartVerticalPosition.Items.Clear();
cboChartVerticalPosition.Items.Add("Above current layer");
cboChartVerticalPosition.Items.Add("Above all layers");
optBarCharts.Checked = (_charts.ChartType == MapWinGIS.tkChartType.chtBarChart);
optPieCharts.Checked = (_charts.ChartType == MapWinGIS.tkChartType.chtPieChart);
// initializing for list of color schemes
icbColors.ColorSchemes = Globals.ChartColors;
icbColors.ComboStyle = ImageComboStyle.ColorSchemeGraduated;
if (icbColors.Items.Count > 0)
{
icbColors.SelectedIndex = 0;
}
string[] scales = { "1", "10", "100", "1000", "5000", "10000", "25000", "50000", "100000",
"250000", "500000", "1000000", "10000000" };
cboMinScale.Items.Clear();
cboMaxScale.Items.Clear();
for (int i = 0; i < scales.Length; i++)
{
cboMinScale.Items.Add(scales[i]);
cboMaxScale.Items.Add(scales[i]);
}
txtChartExpression.Text = sf.Charts.VisibilityExpression;
SetChartsType();
InitFields();
_noEvents = false;
Settings2GUI();
Draw();
RefreshControlsState();
tabControl1.SelectedIndex = _selectedTab;
}
/// <summary>
/// Fills the fields tab
/// </summary>
private void InitFields()
{
// building list of fields
listLeft.Items.Clear();
listRight.Items.Clear();
for (int i = 0; i < _shapefile.NumFields; i++)
{
if (_shapefile.get_Field(i).Type != FieldType.STRING_FIELD)
{
listLeft.Items.Add(_shapefile.get_Field(i).Name);
}
}
// in case some fields have been chosen we must show them
if (_shapefile.Charts.NumFields > 0)
{
for (int i = 0; i < _shapefile.Charts.NumFields; i++)
{
string name = _shapefile.Charts.get_Field(i).Name.ToLower();
for (int j = 0; j < listLeft.Items.Count; j++)
{
if (listLeft.Items[j].ToString().ToLower() == name)
{
listRight.Items.Add(listLeft.Items[j]);
listLeft.Items.Remove(listLeft.Items[j]);
break;
}
}
}
}
if (listLeft.Items.Count > 0)
{
listLeft.SelectedIndex = 0;
}
if (listRight.Items.Count > 0)
{
listRight.SelectedIndex = 0;
}
// Filling size and normalization fields
cboChartSizeField.Items.Clear();
cboChartNormalizationField.Items.Clear();
cboChartSizeField.Items.Add("<None>"); // default
cboChartNormalizationField.Items.Add("<None>");
for (int i = 0; i < _shapefile.NumFields; i++)
{
MapWinGIS.Field fld = _shapefile.get_Field(i);
if (fld.Type != FieldType.STRING_FIELD)
{
cboChartSizeField.Items.Add(fld.Name);
cboChartNormalizationField.Items.Add(fld.Name);
}
}
if (cboChartSizeField.Items.Count >= 0)
{
cboChartSizeField.SelectedIndex = 0;
}
if (cboChartNormalizationField.Items.Count >= 0)
{
cboChartNormalizationField.SelectedIndex = 0;
}
// size field
MapWinGIS.Charts charts = _shapefile.Charts;
if (charts.SizeField >= 0 && charts.SizeField < cboChartSizeField.Items.Count - 1) // first item is <none>
{
Field fld = _shapefile.get_Field(charts.SizeField);
if (fld != null)
{
for (int i = 2; i < cboChartSizeField.Items.Count; i++) // 2 = <none> and <sum of fields>
{
if (fld.Name == cboChartSizeField.Items[i].ToString())
{
cboChartSizeField.SelectedIndex = i;
break;
}
}
}
}
else
{
cboChartSizeField.SelectedIndex = 0;
}
// normalization field
if (charts.NormalizationField >= 0 && charts.NormalizationField < cboChartNormalizationField.Items.Count - 1) // first item is <none>
{
Field fld = _shapefile.get_Field(charts.NormalizationField);
if (fld != null)
{
for (int i = 2; i < cboChartNormalizationField.Items.Count; i++) // 2 = <none> and <sum of fields>
{
if (fld.Name == cboChartNormalizationField.Items[i].ToString())
{
cboChartNormalizationField.SelectedIndex = i;
break;
}
}
}
}
else
{
cboChartNormalizationField.SelectedIndex = 0;
}
}