/// <summary>
/// Gets the height and width of a marker for point layer.
/// </summary>
private void GetIconWidthAndHeight(IGeometryStyle style, ref int iconWidth, ref int iconHeight)
{
var marker = style.Marker;
var icon = style.Marker.Icon;
if (icon != null && marker.Type == MarkerType.Bitmap)
{
if (icon.Width * marker.IconScaleX > iconWidth)
{
iconWidth = Convert.ToInt32(icon.Width * marker.IconScaleX + 0.5);
}
if (icon.Height * marker.IconScaleY > iconHeight)
{
iconHeight = Convert.ToInt32(icon.Height * marker.IconScaleY + 0.5);
}
}
if (marker.Type == MarkerType.FontCharacter)
{
double ratio = marker.FrameVisible ? 1.4 : 1.0;
if (marker.Size * ratio > iconWidth)
{
iconWidth = Convert.ToInt32(marker.Size * ratio);
}
if (marker.Size * ratio > iconHeight)
{
iconHeight = Convert.ToInt32(marker.Size * ratio);
}
}
}
/// <summary>
/// Creates a new instance of PolygonForm class
/// </summary>
public PolygonForm(IAppContext context, ILegendLayer layer, IGeometryStyle style, bool applyDisabled) : base(context)
{
if (layer == null)
{
throw new ArgumentNullException("layer");
}
if (style == null)
{
throw new ArgumentNullException("style");
}
InitializeComponent();
_style = style;
_metadata = SymbologyPlugin.GetMetadata(layer.Handle);
_legend = context.Legend;
_layer = layer;
_initState = style.Serialize();
_noEvents = true;
Initialize();
btnApply.Visible = !applyDisabled;
tabControl1.SelectedIndex = _tabPage;
}
/// <summary>
/// Drawing of images in the style column
/// </summary>
private void dgvCategories_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
if (e.ColumnIndex != CMN_STYLE)
{
return;
}
if (e.RowIndex >= 0 && e.RowIndex < _shapefile.Categories.Count)
{
var img = e.Value as Image;
if (img == null)
{
return;
}
var cat = _shapefile.Categories[e.RowIndex];
if (cat == null)
{
return;
}
IGeometryStyle sdo = cat.Style;
using (Graphics g = Graphics.FromImage(img))
{
g.Clear(Color.White);
g.InterpolationMode = InterpolationMode.HighQualityBicubic;
g.SmoothingMode = SmoothingMode.HighQuality;
if (_shapefile.GeometryType == GeometryType.Polygon)
{
sdo.DrawRectangle(g, 0.0f, 0.0f, img.Width - 1, img.Height - 1, true, img.Width, img.Height,
dgvCategories.BackgroundColor);
}
else if (_shapefile.GeometryType == GeometryType.Polyline)
{
sdo.DrawLine(g, 0.0f, 0.0f, img.Width - 1, img.Height - 1, true, img.Width, img.Height,
dgvCategories.BackgroundColor);
}
else if (_shapefile.PointOrMultiPoint)
{
sdo.DrawPoint(g, 0.0f, 0.0f, img.Width, img.Height, dgvCategories.BackgroundColor);
}
}
}
}
/// <summary>
/// Creates a new instance of PointsForm class
/// </summary>
public PointsForm(IAppContext context, ILegendLayer layer, IGeometryStyle options, bool applyDisabled) : base(context)
{
if (layer == null)
{
throw new ArgumentNullException("layer");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
InitializeComponent();
_legend = context.Legend;
_layer = layer;
_style = options;
// setting values to the controls
_initState = _style.Serialize();
_noEvents = true;
btnApply.Visible = !applyDisabled;
pointIconControl1.Initialize(_style.Marker);
dynamicVisibilityControl1.Initialize(_style, _context.Map.CurrentZoom, _context.Map.CurrentScale);
dynamicVisibilityControl1.ValueChanged += (s, e) => {
btnApply.Enabled = true;
dynamicVisibilityControl1.ApplyChanges();
};
InitControls();
Options2Gui();
_noEvents = false;
InitFonts();
DrawPreview();
AttachListeners();
UpdateDefaultColor();
tabControl1.SelectedIndex = _tabIndex;
}
/// <summary>
/// Creates a new instance of PointsForm class
/// </summary>
public PointsForm(IMuteLegend legend, ILegendLayer layer, IGeometryStyle options, bool applyDisabled)
{
if (layer == null)
{
throw new ArgumentNullException("layer");
}
if (options == null)
{
throw new ArgumentNullException("options");
}
if (legend == null)
{
throw new ArgumentNullException("legend");
}
InitializeComponent();
_legend = legend;
_layer = layer;
_style = options;
// setting values to the controls
_initState = _style.Serialize();
_noEvents = true;
btnApply.Visible = !applyDisabled;
pointIconControl1.Initialize(_style.Marker);
InitControls();
Options2Gui();
_noEvents = false;
InitFonts();
DrawPreview();
AttachListeners();
UpdateDefaultColor();
tabControl1.SelectedIndex = _tabIndex;
}
/// <summary>
/// Creates a new instance of PolygonsForm class
/// </summary>
public LinesForm(IAppContext _context, ILegendLayer layer, IGeometryStyle style, bool applyDisabled) : base(_context)
{
if (layer == null)
{
throw new ArgumentNullException("layer");
}
if (style == null)
{
throw new ArgumentNullException("style");
}
InitializeComponent();
_style = style;
_legend = _context.Legend;
_layer = layer;
_initState = style.Serialize();
btnApply.Visible = !applyDisabled;
Initialize();
}
/// <summary>
/// Draws layer icon.
/// </summary>
/// <returns>Height of icon in screen coordinates.</returns>
private int DrawLayerIcon(ILegendLayer layer, IGeometryStyle options, Graphics g, float left, float top)
{
int width = _thumbnailWidth;
int height = _thumbnailHeight;
var fs = layer.FeatureSet;
if (fs == null)
{
return(height + 3);
}
var hdc = g.GetHdc();
GetIconWidthAndHeight(options, ref width, ref height);
left = (int)(left + 0.5);
top = (int)(top + 0.5);
if (fs.PointOrMultiPoint)
{
options.DrawPoint(hdc, left, top, width, height, _backColor);
}
else if (fs.IsPolyline)
{
options.DrawLine(hdc, left, top, width, height, false, width, height, _backColor);
}
else if (fs.IsPolygon)
{
options.DrawRectangle(hdc, left, top, width - 1, height - 1, false, width + 1, height + 1, _backColor);
}
g.ReleaseHdc(hdc);
return(height + 3);
}
/// <summary>
/// Displays symbology form of the appropriate type
/// </summary>
public static Form GetSymbologyForm(this IAppContext context, int layerHandle, IGeometryStyle options, bool applyDisabled)
{
Form form = null;
var layer = context.Legend.Layers.ItemByHandle(layerHandle);
var fs = layer.FeatureSet;
if (fs == null)
{
return(null);
}
var type = fs.GeometryType;
if (type == GeometryType.Point || type == GeometryType.MultiPoint)
{
form = new PointsForm(context.Legend, layer, options, applyDisabled);
}
else if (type == GeometryType.Polyline)
{
form = new LinesForm(context.Legend, layer, options, applyDisabled);
}
else if (type == GeometryType.Polygon)
{
form = new PolygonForm(context.Legend, layer, options, applyDisabled);
}
return(form);
}
public void CopyStyleFrom(IGeometryStyle style)
{
_editor.CopyOptionsFrom(style.GetInternal());
}
public static ShapeDrawingOptions GetInternal(this IGeometryStyle style)
{
return(style.InternalObject as ShapeDrawingOptions);
}
/// <summary>
/// Generates shapefile categories according to specified options
/// </summary>
private void btnOk_Click(object sender, EventArgs e)
{
if (cboField.SelectedIndex < 0)
{
MessageService.Current.Info("No field for generation was selected.");
DialogResult = DialogResult.None;
return;
}
int count;
if (!Int32.TryParse(cboCategoriesCount.Text, out count))
{
MessageService.Current.Warn("Number of categories isn't a valid interger.");
return;
}
var categories = _shapefile.Categories;
int index = ((RealIndexComboItem)cboField.SelectedItem).RealIndex;
categories.Generate(index, (Classification)cboClassificationType.SelectedIndex, count);
categories.Caption = "Categories: " + _shapefile.Fields[index].Name;
if (chkUseVariableSize.Checked)
{
if (_shapefile.PointOrMultiPoint)
{
double step = (double)(udMaxSize.Value - udMinSize.Value) / ((double)categories.Count - 1);
for (int i = 0; i < categories.Count; i++)
{
categories[i].Style.Marker.Size = (int)udMinSize.Value + Convert.ToInt32(i * step);
}
}
else if (_shapefile.GeometryType == GeometryType.Polyline)
{
double step = (double)(udMaxSize.Value + udMinSize.Value) / (double)categories.Count;
for (int i = 0; i < categories.Count; i++)
{
categories[i].Style.Line.Width = (int)udMinSize.Value + Convert.ToInt32(i * step);
}
}
}
ColorRamp scheme = null;
if (icbColorScheme.SelectedIndex >= 0)
{
var blend = icbColorScheme.ColorSchemes[icbColorScheme.SelectedIndex];
scheme = blend.ToColorScheme();
}
var type = chkRandomColors.Checked ? SchemeType.Random : SchemeType.Graduated;
_shapefile.Categories.ApplyColorScheme(type, scheme);
if (chkSetGradient.Checked)
{
for (int i = 0; i < categories.Count; i++)
{
IGeometryStyle options = categories[i].Style;
options.Fill.SetGradient(options.Fill.Color, 75);
options.Fill.Type = FillType.Gradient;
}
}
_shapefile.Categories.ApplyExpressions();
SaveSettings();
}
