/// <summary>
/// Update the list item according to a modified style
/// </summary>
/// <param name="index">the index of the lit item</param>
/// <param name="style">the style object</param>
private void UpdateStyleInList(int index)
{
layerObj layer;
if (target.GetParent().GetType() == typeof(scalebarObj))
{
layer = new layerObj(null);
}
else
{
layer = target.GetParent().GetParent();
}
ListViewItem item = listViewStyles.Items[index];
styleObj style = (styleObj)item.Tag;
classObj styleclass = new classObj(null);
styleclass.insertStyle(style, -1);
// creating the list icon
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(map, layer, 30, 20))
{
MS_LAYER_TYPE type = layer.type;
try
{
// modify the layer type in certain cases for drawing correct images
string geomtransform = style.getGeomTransform().ToLower();
if (geomtransform != null)
{
if (geomtransform.Contains("labelpoly"))
{
layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
}
else if (geomtransform.Contains("labelpnt"))
{
layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
}
}
styleclass.drawLegendIcon(map, layer, 20, 10, image2, 5, 5);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images[item.ImageIndex] = Image.FromStream(ms);
}
item.SubItems[1].Text = style.size.ToString();
item.SubItems[2].Text = style.width.ToString();
item.SubItems[3].Text = style.symbolname;
}
}
}
/// <summary>
/// Update the preview according to the changes
/// </summary>
private void UpdatePreview()
{
if (style != null && enablePreview)
{
styleObj pstyle = style.clone();
Update(pstyle);
classObj styleclass = new classObj(null);
styleclass.insertStyle(pstyle, -1);
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map, layer, pictureBoxPreview.Width, pictureBoxPreview.Height))
{
styleclass.drawLegendIcon(map, layer,
pictureBoxPreview.Width - 10, pictureBoxPreview.Height - 10, image2, 4, 4);
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxPreview.Image = Image.FromStream(ms);
}
}
}
}
else
{
pictureBoxPreview.Image = null;
}
}
private ListViewItem AddListItem(styleObj classStyle, layerObj layer, string name)
{
ListViewItem item = null;
classObj styleclass = new classObj(null);
styleclass.insertStyle(classStyle, -1);
mapObj map2 = map;
if (layer.map != null)
{
map2 = layer.map;
}
// creating the listicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map2, layer, imageList.ImageSize.Width, imageList.ImageSize.Height))
{
MS_LAYER_TYPE type = layer.type;
try
{
//SETPH: actually we should not modify the type of the style(point line polygon) for the style category list, only for the preview
//// modify the layer type in certain cases for drawing correct images
//if (comboBoxGeomTransform.Text.ToLower().Contains("labelpoly"))
//layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
//else if (comboBoxGeomTransform.Text.ToLower().Contains("labelpnt"))
//layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
styleclass.drawLegendIcon(map2, layer, 44, 44, image2, 2, 2);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
// add new item
item = new ListViewItem(name, imageList.Images.Count - 1);
item.ToolTipText = name;
item.Tag = classStyle;
listView.Items.Add(item);
}
}
return(item);
}
/// <summary>
/// Update the Sample image according to the selected element
/// </summary>
/// <param name="target">Selected element</param>
private void UpdateSample(MapObjectHolder target)
{
layerObj layer = null;
mapObj map = null;
classObj classobj = null;
if (target.GetType() == typeof(layerObj))
{
layer = target;
map = layer.map;
classobj = layer.getClass(0);
}
else if (target.GetType() == typeof(classObj))
{
classobj = target;
if (classobj != null)
{
layer = classobj.layer;
}
if (layer != null)
{
map = layer.map;
}
}
if (map == null || layer == null || classobj == null)
{
pictureBoxSample.Image = null;
return;
}
styleObj style = classobj.getStyle(0);
double size = style.size;
// collect all fonts specified in the fontset file
Hashtable fonts = new Hashtable();
string key = null;
while ((key = this.map.fontset.fonts.nextKey(key)) != null)
{
fonts.Add(key, key);
}
textBoxInfo.Text = "";
if (style.symbol >= 0)
{
string font = ((mapObj)StyleLibrary.Styles).symbolset.getSymbol(style.symbol).font;
if (font != null && !fonts.ContainsKey(font))
{
textBoxInfo.Text = "WARNING: The fontset of the map doesn't contain " + font + " font. This symbol will not be selectable on the map.";
}
}
if (layer.type == MS_LAYER_TYPE.MS_LAYER_POINT)
{
// apply magnification for point styles
style.size = size * trackBarMagnify.Value / 4;
}
try
{
using (classObj def_class = new classObj(null)) // for drawing legend image
{
using (imageObj image2 = def_class.createLegendIcon(map, layer,
pictureBoxSample.Width, pictureBoxSample.Height))
{
classobj.drawLegendIcon(map, layer,
pictureBoxSample.Width, pictureBoxSample.Height, image2, 5, 5);
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxSample.Image = Image.FromStream(ms);
}
}
}
}
finally
{
style.size = size;
}
}
/// <summary>
/// Refresh the controls according to the underlying object.
/// </summary>
public void RefreshView()
{
listView.Items.Clear();
if (map != null)
{
// setting up the icon background colors createLegendIcon
// will take over the legend imagecolor setting from the map object
int red = map.legend.imagecolor.red;
int green = map.legend.imagecolor.green;
int blue = map.legend.imagecolor.blue;
map.legend.imagecolor.red = this.BackColor.R;
map.legend.imagecolor.green = this.BackColor.G;
map.legend.imagecolor.blue = this.BackColor.B;
listView.BackColor = this.BackColor;
using (outputFormatObj format = map.outputformat)
{
string imageType = null;
if ((format.renderer != mapscript.MS_RENDER_WITH_GD &&
format.renderer != mapscript.MS_RENDER_WITH_AGG) ||
string.Compare(format.mimetype.Trim(), "image/vnd.wap.wbmp", true) == 0 ||
string.Compare(format.mimetype.Trim(), "image/tiff", true) == 0 ||
string.Compare(format.mimetype.Trim(), "image/jpeg", true) == 0)
{
// falling back to the png type in case of the esoteric or bad looking types
imageType = map.imagetype;
map.selectOutputFormat("png24");
}
imageList.Images.Clear();
imageList.ImageSize = new Size(30, 20);
try
{
for (int i = 0; i < map.numlayers; i++)
{
layerObj layer = map.getLayer(i);
if (layer.status != mapscript.MS_OFF)
{
resultObj res;
shapeObj feature;
using (resultCacheObj results = layer.getResults())
{
if (results != null && results.numresults > 0)
{
// creating the icon for this layer
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image = def_class.createLegendIcon(map, layer, 30, 20))
{
// drawing the class icons
layer.getClass(0).drawLegendIcon(map, layer, 20, 10, image, 5, 5);
byte[] img = image.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
}
}
// extracting the features found
for (int j = 0; j < results.numresults; j++)
{
res = results.getResult(j);
feature = layer.getShape(res);
if (feature != null)
{
ListViewItem item = new ListViewItem(layer.name, imageList.Images.Count - 1);
item.SubItems.Add(feature.index.ToString());
item.SubItems.Add(MapUtils.GetShapeTypeName((MS_SHAPE_TYPE)feature.type));
listView.Items.Add(item);
StringBuilder s = new StringBuilder("");
s.AppendLine("Feature Properties:");
for (int k = 0; k < layer.numitems; k++)
{
s.Append(layer.getItem(k));
s.Append(" = ");
s.AppendLine(feature.getValue(k));
}
item.Tag = s.ToString();
}
}
}
}
}
}
}
finally
{
// switch back to the original type
if (imageType != null)
{
map.selectOutputFormat(imageType);
}
// restoring the original legend backgroundcolor
map.legend.imagecolor.red = red;
map.legend.imagecolor.green = green;
map.legend.imagecolor.blue = blue;
}
listView.SmallImageList = imageList;
}
if (listView.Items.Count > 0)
{
listView.Items[0].Selected = true;
}
else
{
richTextBox.Text = "";
}
}
}
private void UpdatePreview()
{
if (style != null && enablePreview)
{
styleObj pstyle = style.clone();
Update(pstyle);
// apply current settings (opacity) to colors
colorPickerColor.SetColor(pstyle.color);
colorPickerBackColor.SetColor(pstyle.backgroundcolor);
colorPickerOutlineColor.SetColor(pstyle.outlinecolor);
// select the proper map containing symbols
mapObj stylemap = map;
if (listView.SelectedItems.Count > 0 && listView.SelectedItems[0].Text != "Default")
{
if (comboBoxCategory.Text != "Inline Symbols")
{
stylemap = StyleLibrary.Styles;
}
styleObj classStyle = (styleObj)listView.SelectedItems[0].Tag;
pstyle.setSymbolByName(stylemap, classStyle.symbolname);
}
else
{
pstyle.symbol = 0;
pstyle.symbolname = null;
}
classObj styleclass = new classObj(null);
styleclass.insertStyle(pstyle, -1);
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
stylemap, layer, pictureBoxSample.Width, pictureBoxSample.Height))
{
MS_LAYER_TYPE type = layer.type;
try
{
// modify the layer type in certain cases for drawing correct images
if (comboBoxGeomTransform.Text.ToLower().Contains("labelpoly"))
{
layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
}
else if (comboBoxGeomTransform.Text.ToLower().Contains("labelpnt") || comboBoxGeomTransform.Text.ToLower().Contains("centroid"))
{
layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
}
styleclass.drawLegendIcon(stylemap, layer,
pictureBoxSample.Width - 10, pictureBoxSample.Height - 10, image2, 4, 4);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxSample.Image = Image.FromStream(ms);
}
}
}
}
}
/// <summary>
/// Refresh the controls according to the underlying object.
/// </summary>
public void RefreshView()
{
listView.Items.Clear();
if (map != null)
{
// setting up the icon background colors createLegendIcon
// will take over the legend imagecolor setting from the map object
int red = map.legend.imagecolor.red;
int green = map.legend.imagecolor.green;
int blue = map.legend.imagecolor.blue;
map.legend.imagecolor.red = this.BackColor.R;
map.legend.imagecolor.green = this.BackColor.G;
map.legend.imagecolor.blue = this.BackColor.B;
listView.BackColor = this.BackColor;
using (outputFormatObj format = map.outputformat)
{
string imageType = null;
if ((format.renderer != mapscript.MS_RENDER_WITH_GD &&
format.renderer != mapscript.MS_RENDER_WITH_AGG)
|| string.Compare(format.mimetype.Trim(), "image/vnd.wap.wbmp", true) == 0
|| string.Compare(format.mimetype.Trim(), "image/tiff", true) == 0
|| string.Compare(format.mimetype.Trim(), "image/jpeg", true) == 0)
{
// falling back to the png type in case of the esoteric or bad looking types
imageType = map.imagetype;
map.selectOutputFormat("png24");
}
imageList.Images.Clear();
imageList.ImageSize = new Size(30, 20);
try
{
for (int i = 0; i < map.numlayers; i++)
{
layerObj layer = map.getLayer(i);
if (layer.status != mapscript.MS_OFF)
{
resultObj res;
shapeObj feature;
using (resultCacheObj results = layer.getResults())
{
if (results != null && results.numresults > 0)
{
// creating the icon for this layer
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image = def_class.createLegendIcon(map, layer, 30, 20))
{
// drawing the class icons
layer.getClass(0).drawLegendIcon(map, layer, 20, 10, image, 5, 5);
byte[] img = image.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
}
}
// extracting the features found
for (int j = 0; j < results.numresults; j++)
{
res = results.getResult(j);
feature = layer.getShape(res);
if (feature != null)
{
ListViewItem item = new ListViewItem(layer.name, imageList.Images.Count - 1);
item.SubItems.Add(feature.index.ToString());
item.SubItems.Add(MapUtils.GetShapeTypeName((MS_SHAPE_TYPE)feature.type));
listView.Items.Add(item);
StringBuilder s = new StringBuilder("");
s.AppendLine("Feature Properties:");
for (int k = 0; k < layer.numitems; k++)
{
s.Append(layer.getItem(k));
s.Append(" = ");
s.AppendLine(feature.getValue(k));
}
item.Tag = s.ToString();
}
}
}
}
}
}
}
finally
{
// switch back to the original type
if (imageType != null)
map.selectOutputFormat(imageType);
// restoring the original legend backgroundcolor
map.legend.imagecolor.red = red;
map.legend.imagecolor.green = green;
map.legend.imagecolor.blue = blue;
}
listView.SmallImageList = imageList;
}
if (listView.Items.Count > 0)
listView.Items[0].Selected = true;
else
richTextBox.Text = "";
}
}
/// <summary>
/// get a csharp image from the ms classobj
/// </summary>
/// <param name="msClass"></param>
/// <param name="imageWidth"></param>
/// <param name="imageHeight"></param>
/// <returns></returns>
private Image GetImageFromClass(classObj msClass,int imageWidth,int imageHeight)
{
//return GetImageFromClass(m_pDefaultMap, msClass, imageWidth, imageHeight);
if (msClass == null) return null;
if (imageWidth < 8)
imageWidth = 8;
if (imageHeight < 8)
imageHeight = 8;
imageObj pSymbolImage;
if(msClass.layer == null)
{
pSymbolImage = msClass.createLegendIcon(m_pDefaultMap, m_pCurrentLayer,
imageWidth, imageHeight);
}
else
{
pSymbolImage = msClass.createLegendIcon(msClass.layer.map, msClass.layer,
imageWidth, imageHeight);
}
byte[] buffer = pSymbolImage.getBytes();
System.IO.MemoryStream ms = new System.IO.MemoryStream();
ms.Write(buffer, 0, buffer.Length);
Image pImage = Image.FromStream(ms);
ms.Dispose();
pSymbolImage.Dispose();
return pImage;
}
private ListViewItem AddListItem(styleObj classStyle, layerObj layer, string name)
{
ListViewItem item = null;
classObj styleclass = new classObj(null);
styleclass.insertStyle(classStyle, -1);
mapObj map2 = map;
if (layer.map != null)
map2 = layer.map;
// creating the listicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map2, layer, imageList.ImageSize.Width, imageList.ImageSize.Height))
{
MS_LAYER_TYPE type = layer.type;
try
{
//SETPH: actually we should not modify the type of the style(point line polygon) for the style category list, only for the preview
//// modify the layer type in certain cases for drawing correct images
//if (comboBoxGeomTransform.Text.ToLower().Contains("labelpoly"))
//layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
//else if (comboBoxGeomTransform.Text.ToLower().Contains("labelpnt"))
//layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
styleclass.drawLegendIcon(map2, layer, 44, 44, image2, 2, 2);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
// add new item
item = new ListViewItem(name, imageList.Images.Count - 1);
item.ToolTipText = name;
item.Tag = classStyle;
listView.Items.Add(item);
}
}
return item;
}
/// <summary>
/// Adding a new labelObj to the corresponding classObj.
/// </summary>
/// <param name="nodes">The TreeNodeCollection of the parent object</param>
/// <param name="labelHolder">Wrapper class containing the labelObj and the parent object</param>
/// <param name="imageList">The image list where the label image should be stored.</param>
/// <param name="index">The current index of the label object.</param>
private void AddLabelNode(TreeNodeCollection nodes, MapObjectHolder labelHolder, ImageList imageList, int index)
{
layerObj layer = labelHolder.GetParent().GetParent();
classObj layerclass = labelHolder.GetParent();
labelObj classLabel = labelHolder;
classObj labelclass = new classObj(null);
labelclass.name = MapUtils.GetClassName(layer);
labelclass.addLabel(classLabel);
// creating the treeicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map, layer, legendIconSize.Width, legendIconSize.Height))
{
MS_LAYER_TYPE layertype = layer.type;
layer.type = MS_LAYER_TYPE.MS_LAYER_ANNOTATION;
labelclass.drawLegendIcon(map, layer,
legendDrawingSize.Width, legendDrawingSize.Height, image2,
LegendIconPadding.Left, LegendIconPadding.Top);
layer.type = layertype;
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
TreeNode labelNode = new TreeNode("Label (" + index + ")",
imageList.Images.Count - 1, imageList.Images.Count - 1);
labelNode.Tag = labelHolder;
labelNode.Checked = true;
nodes.Add(labelNode);
}
}
}
/// <summary>
/// Adding a new classObj to the corresponding layerObj.
/// </summary>
/// <param name="nodes">The TreeNodeCollection of the parent object</param>
/// <param name="classHolder">Wrapper class containing the classObj and the parent object</param>
/// /// <param name="showRoot">A flag indicating whether the root object should be displayed or not.</param>
private void AddClassNode(TreeNodeCollection nodes, MapObjectHolder classHolder, ImageList imageList)
{
layerObj layer = classHolder.GetParent();
classObj layerclass = classHolder;
// creating the treeicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image = def_class.createLegendIcon(
map, layer, legendIconSize.Width, legendIconSize.Height))
{
// drawing the class icons
layerclass.drawLegendIcon(map, layer,
legendDrawingSize.Width, legendDrawingSize.Height, image,
LegendIconPadding.Left, LegendIconPadding.Top);
byte[] img = image.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
if (!showClasses || string.Compare(layer.styleitem, "AUTO", true) == 0)
return;
TreeNode classNode = null;
if (layer.numclasses > 1 ||
(layer.numclasses == 1 && target.GetType() == typeof(layerObj) && showRootObject == false)) // classes should always be shown if the layer is not shown (#7118)
{
classNode = new TreeNode(layerclass.name, imageList.Images.Count - 1,
imageList.Images.Count - 1);
classNode.Tag = classHolder;
classNode.Checked = (layerclass.status != mapscript.MS_OFF);
nodes.Add(classNode);
nodes = classNode.Nodes;
}
// drawing the style icons
if (showStyles)
{
for (int k = 0; k < layerclass.numstyles; k++)
{
styleObj classStyle = layerclass.getStyle(k);
if (layerclass.numstyles > 1)
{
AddStyleNode(nodes, new MapObjectHolder(classStyle, classHolder), imageList);
}
}
}
// drawing the labels icons
if (showLabels)
{
for (int l = 0; l < layerclass.numlabels; l++)
{
labelObj classLabel = layerclass.getLabel(l);
if (layerclass.numlabels > 1)
{
AddLabelNode(nodes, new MapObjectHolder(classLabel, classHolder), imageList, l);
}
}
}
}
}
}
/// <summary>
/// Adding a new styleObj to the corresponding classObj.
/// </summary>
/// <param name="nodes">The TreeNodeCollection of the parent object</param>
/// <param name="styleHolder">Wrapper class containing the styleObj and the parent object</param>
/// /// <param name="showRoot">A flag indicating whether the root object should be displayed or not.</param>
private void AddStyleNode(TreeNodeCollection nodes, MapObjectHolder styleHolder, ImageList imageList)
{
layerObj layer = styleHolder.GetParent().GetParent();
classObj layerclass = styleHolder.GetParent();
styleObj classStyle = styleHolder;
classObj styleclass = new classObj(null);
styleclass.name = MapUtils.GetClassName(layer);
styleclass.insertStyle(classStyle, -1);
// creating the treeicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map, layer, legendIconSize.Width, legendIconSize.Height))
{
styleclass.drawLegendIcon(map, layer,
legendDrawingSize.Width, legendDrawingSize.Height, image2,
LegendIconPadding.Left, LegendIconPadding.Top);
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images.Add(Image.FromStream(ms));
}
TreeNode styleNode = new TreeNode("Style (" + nodes.Count + ")",
imageList.Images.Count - 1, imageList.Images.Count - 1);
styleNode.Tag = styleHolder;
styleNode.Checked = true;
nodes.Add(styleNode);
}
}
}
/// <summary>
/// Export a legend image with specific requirements (bug 1015)
/// </summary>
/// <param name="map">The map object</param>
/// <param name="width">The desired legend width</param>
/// <param name="height">The desired legend height</param>
/// <returns></returns>
public static byte[] ExportLegend(mapObj map)
{
int width = 10;
int height = 10;
Bitmap bmp = null;
Graphics g = null;
for (int phase = 0; phase < 2; phase++)
{
if (phase == 0)
bmp = new Bitmap(100, 100, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
else
bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
g = Graphics.FromImage(bmp);
Stack groupPositions = new Stack(); // for storing the group text positions
Font legendFont = new Font("MS Sans Sherif", 8); // set default font
g.Clear(Color.White); // clear the background
int xPos = 5; // padding
int yPos = 5;
int xOffset = 24; // legend indent in pixels
int yOffset = 18; // item height in pixels
// force the recalculation of the current scale
map.setExtent(map.extent.minx, map.extent.miny, map.extent.maxx, map.extent.maxy);
// start drawing the legend in reverse layer order
using (intarray ar = map.getLayersDrawingOrder())
{
for (int i = map.numlayers - 1; i >= 0; i--)
{
layerObj layer = map.getLayer(ar.getitem(i));
if (layer.name == "__embed__scalebar" || layer.name == "__embed__legend"
|| layer.status == mapscript.MS_OFF || layer.name.StartsWith("~"))
continue;
if (map.scaledenom > 0)
{
if (layer.maxscaledenom > 0 && map.scaledenom > layer.maxscaledenom)
continue;
if (layer.minscaledenom > 0 && map.scaledenom <= layer.minscaledenom)
continue;
}
if (layer.maxscaledenom <= 0 && layer.minscaledenom <= 0)
{
if (layer.maxgeowidth > 0 && ((map.extent.maxx - map.extent.minx) > layer.maxgeowidth))
continue;
if (layer.mingeowidth > 0 && ((map.extent.maxx - map.extent.minx) < layer.mingeowidth))
continue;
}
// draw raster or WMS layers
if (layer.type == MS_LAYER_TYPE.MS_LAYER_RASTER)
{
if (phase == 1)
{
g.DrawIcon(global::MapLibrary.Properties.Resources.raster, xPos, yPos);
g.DrawString(layer.name, legendFont, Brushes.Black, xPos + 30, yPos + 2);
}
SizeF size = g.MeasureString(layer.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
yPos += yOffset;
continue;
}
int numClasses = 0;
Image legendImage = null;
string legendText = null;
for (int j = 0; j < layer.numclasses; j++)
{
classObj layerclass = layer.getClass(j);
if (layerclass.name == "EntireSelection" || layerclass.name == "CurrentSelection")
continue;
if (layerclass.status == mapscript.MS_OFF)
continue;
if (map.scaledenom > 0)
{ /* verify class scale here */
if (layerclass.maxscaledenom > 0 && (map.scaledenom > layerclass.maxscaledenom))
continue;
if (layerclass.minscaledenom > 0 && (map.scaledenom <= layerclass.minscaledenom))
continue;
}
if (numClasses == 1)
{
// draw subclasses
xPos += xOffset;
if (phase == 1)
{
// drawing the first class item (same as the layer)
g.DrawImage(legendImage, xPos, yPos);
g.DrawString(legendText, legendFont,
Brushes.Black, xPos + 30, yPos + 2);
}
SizeF size = g.MeasureString(legendText, legendFont);
if (xPos + 30 + size.Width + 5 > width)
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
yPos += yOffset;
}
++numClasses; // number of visible classes
// creating the treeicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image = def_class.createLegendIcon(map, layer, 30, 20))
{
// drawing the class icons
layerclass.drawLegendIcon(map, layer, 20, 10, image, 5, 5);
byte[] img = image.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
legendImage = Image.FromStream(ms);
legendText = layerclass.name;
if (phase == 1)
g.DrawImage(legendImage, xPos, yPos);
if (numClasses > 1)
{
// draw the class item
if (phase == 1)
g.DrawString(layerclass.name, legendFont,
Brushes.Black, xPos + 30, yPos + 3);
SizeF size = g.MeasureString(layerclass.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
}
else
{
// draw the layer item
if (phase == 1)
g.DrawString(layer.name, legendFont,
Brushes.Black, xPos + 30, yPos + 3);
SizeF size = g.MeasureString(layer.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
if (string.Compare(layer.styleitem, "AUTO", true) == 0)
{
yPos += yOffset;
break;
}
}
}
}
}
yPos += yOffset;
}
if (numClasses > 1)
xPos -= xOffset;
}
}
height = yPos + 5;
}
g.Flush();
MemoryStream ms2 = new MemoryStream();
bmp.Save(ms2, System.Drawing.Imaging.ImageFormat.Png);
return ms2.ToArray();
}
/// <summary>
/// Update the list item according to a modified style
/// </summary>
/// <param name="index">the index of the lit item</param>
/// <param name="style">the style object</param>
private void UpdateStyleInList(int index)
{
layerObj layer;
if (target.GetParent().GetType() == typeof(scalebarObj))
layer = new layerObj(null);
else
layer = target.GetParent().GetParent();
ListViewItem item = listViewStyles.Items[index];
styleObj style = (styleObj)item.Tag;
classObj styleclass = new classObj(null);
styleclass.insertStyle(style, -1);
// creating the list icon
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(map, layer, 30, 20))
{
MS_LAYER_TYPE type = layer.type;
try
{
// modify the layer type in certain cases for drawing correct images
string geomtransform = style.getGeomTransform().ToLower();
if (geomtransform != null)
{
if (geomtransform.Contains("labelpoly"))
layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
else if (geomtransform.Contains("labelpnt"))
layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
}
styleclass.drawLegendIcon(map, layer, 20, 10, image2, 5, 5);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
imageList.Images[item.ImageIndex] = Image.FromStream(ms);
}
item.SubItems[1].Text = style.size.ToString();
item.SubItems[2].Text = style.width.ToString();
item.SubItems[3].Text = style.symbolname;
}
}
}
/// <summary>
/// Update the Sample image according to the selected element
/// </summary>
/// <param name="target">Selected element</param>
private void UpdateSample(MapObjectHolder target)
{
layerObj layer = null;
mapObj map = null;
classObj classobj = null;
if (target.GetType() == typeof(layerObj))
{
layer = target;
map = layer.map;
classobj = layer.getClass(0);
}
else if (target.GetType() == typeof(classObj))
{
classobj = target;
if (classobj != null)
layer = classobj.layer;
if (layer != null)
map = layer.map;
}
if (map == null || layer == null || classobj == null)
{
pictureBoxSample.Image = null;
return;
}
styleObj style = classobj.getStyle(0);
double size = style.size;
// collect all fonts specified in the fontset file
Hashtable fonts = new Hashtable();
string key = null;
while ((key = this.map.fontset.fonts.nextKey(key)) != null)
fonts.Add(key, key);
textBoxInfo.Text = "";
if (style.symbol >= 0)
{
string font = ((mapObj)StyleLibrary.Styles).symbolset.getSymbol(style.symbol).font;
if (font != null && !fonts.ContainsKey(font))
{
textBoxInfo.Text = "WARNING: The fontset of the map doesn't contain " + font + " font. This symbol will not be selectable on the map.";
}
}
if (layer.type == MS_LAYER_TYPE.MS_LAYER_POINT)
{
// apply magnification for point styles
style.size = size * trackBarMagnify.Value / 4;
}
try
{
using (classObj def_class = new classObj(null)) // for drawing legend image
{
using (imageObj image2 = def_class.createLegendIcon(map, layer,
pictureBoxSample.Width, pictureBoxSample.Height))
{
classobj.drawLegendIcon(map, layer,
pictureBoxSample.Width, pictureBoxSample.Height, image2, 5, 5);
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxSample.Image = Image.FromStream(ms);
}
}
}
}
finally
{
style.size = size;
}
}
private void UpdatePreview()
{
if (style != null && enablePreview)
{
styleObj pstyle = style.clone();
Update(pstyle);
// apply current settings (opacity) to colors
colorPickerColor.SetColor(pstyle.color);
colorPickerBackColor.SetColor(pstyle.backgroundcolor);
colorPickerOutlineColor.SetColor(pstyle.outlinecolor);
// select the proper map containing symbols
mapObj stylemap = map;
if (listView.SelectedItems.Count > 0 && listView.SelectedItems[0].Text != "Default")
{
if (comboBoxCategory.Text != "Inline Symbols")
stylemap = StyleLibrary.Styles;
styleObj classStyle = (styleObj)listView.SelectedItems[0].Tag;
pstyle.setSymbolByName(stylemap, classStyle.symbolname);
}
else
{
pstyle.symbol = 0;
pstyle.symbolname = null;
}
classObj styleclass = new classObj(null);
styleclass.insertStyle(pstyle, -1);
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
stylemap, layer, pictureBoxSample.Width, pictureBoxSample.Height))
{
MS_LAYER_TYPE type = layer.type;
try
{
// modify the layer type in certain cases for drawing correct images
if (comboBoxGeomTransform.Text.ToLower().Contains("labelpoly"))
layer.type = MS_LAYER_TYPE.MS_LAYER_POLYGON;
else if (comboBoxGeomTransform.Text.ToLower().Contains("labelpnt") || comboBoxGeomTransform.Text.ToLower().Contains("centroid"))
layer.type = MS_LAYER_TYPE.MS_LAYER_POINT;
styleclass.drawLegendIcon(stylemap, layer,
pictureBoxSample.Width - 10, pictureBoxSample.Height - 10, image2, 4, 4);
}
finally
{
layer.type = type;
}
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxSample.Image = Image.FromStream(ms);
}
}
}
}
}
/// <summary>
/// Export a legend image with specific requirements (bug 1015)
/// </summary>
/// <param name="map">The map object</param>
/// <param name="width">The desired legend width</param>
/// <param name="height">The desired legend height</param>
/// <returns></returns>
public static byte[] ExportLegend(mapObj map)
{
int width = 10;
int height = 10;
Bitmap bmp = null;
Graphics g = null;
for (int phase = 0; phase < 2; phase++)
{
if (phase == 0)
{
bmp = new Bitmap(100, 100, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
else
{
bmp = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
}
g = Graphics.FromImage(bmp);
Stack groupPositions = new Stack(); // for storing the group text positions
Font legendFont = new Font("MS Sans Sherif", 8); // set default font
g.Clear(Color.White); // clear the background
int xPos = 5; // padding
int yPos = 5;
int xOffset = 24; // legend indent in pixels
int yOffset = 18; // item height in pixels
// force the recalculation of the current scale
map.setExtent(map.extent.minx, map.extent.miny, map.extent.maxx, map.extent.maxy);
// start drawing the legend in reverse layer order
using (intarray ar = map.getLayersDrawingOrder())
{
for (int i = map.numlayers - 1; i >= 0; i--)
{
layerObj layer = map.getLayer(ar.getitem(i));
if (layer.name == "__embed__scalebar" || layer.name == "__embed__legend" ||
layer.status == mapscript.MS_OFF || layer.name.StartsWith("~"))
{
continue;
}
if (map.scaledenom > 0)
{
if (layer.maxscaledenom > 0 && map.scaledenom > layer.maxscaledenom)
{
continue;
}
if (layer.minscaledenom > 0 && map.scaledenom <= layer.minscaledenom)
{
continue;
}
}
if (layer.maxscaledenom <= 0 && layer.minscaledenom <= 0)
{
if (layer.maxgeowidth > 0 && ((map.extent.maxx - map.extent.minx) > layer.maxgeowidth))
{
continue;
}
if (layer.mingeowidth > 0 && ((map.extent.maxx - map.extent.minx) < layer.mingeowidth))
{
continue;
}
}
// draw raster or WMS layers
if (layer.type == MS_LAYER_TYPE.MS_LAYER_RASTER)
{
if (phase == 1)
{
g.DrawIcon(global::MapLibrary.Properties.Resources.raster, xPos, yPos);
g.DrawString(layer.name, legendFont, Brushes.Black, xPos + 30, yPos + 2);
}
SizeF size = g.MeasureString(layer.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
{
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
}
yPos += yOffset;
continue;
}
int numClasses = 0;
Image legendImage = null;
string legendText = null;
for (int j = 0; j < layer.numclasses; j++)
{
classObj layerclass = layer.getClass(j);
if (layerclass.name == "EntireSelection" || layerclass.name == "CurrentSelection")
{
continue;
}
if (layerclass.status == mapscript.MS_OFF)
{
continue;
}
if (map.scaledenom > 0)
{ /* verify class scale here */
if (layerclass.maxscaledenom > 0 && (map.scaledenom > layerclass.maxscaledenom))
{
continue;
}
if (layerclass.minscaledenom > 0 && (map.scaledenom <= layerclass.minscaledenom))
{
continue;
}
}
if (numClasses == 1)
{
// draw subclasses
xPos += xOffset;
if (phase == 1)
{
// drawing the first class item (same as the layer)
g.DrawImage(legendImage, xPos, yPos);
g.DrawString(legendText, legendFont,
Brushes.Black, xPos + 30, yPos + 2);
}
SizeF size = g.MeasureString(legendText, legendFont);
if (xPos + 30 + size.Width + 5 > width)
{
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
}
yPos += yOffset;
}
++numClasses; // number of visible classes
// creating the treeicons
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image = def_class.createLegendIcon(map, layer, 30, 20))
{
// drawing the class icons
layerclass.drawLegendIcon(map, layer, 20, 10, image, 5, 5);
byte[] img = image.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
legendImage = Image.FromStream(ms);
legendText = layerclass.name;
if (phase == 1)
{
g.DrawImage(legendImage, xPos, yPos);
}
if (numClasses > 1)
{
// draw the class item
if (phase == 1)
{
g.DrawString(layerclass.name, legendFont,
Brushes.Black, xPos + 30, yPos + 3);
}
SizeF size = g.MeasureString(layerclass.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
{
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
}
}
else
{
// draw the layer item
if (phase == 1)
{
g.DrawString(layer.name, legendFont,
Brushes.Black, xPos + 30, yPos + 3);
}
SizeF size = g.MeasureString(layer.name, legendFont);
if (xPos + 30 + size.Width + 5 > width)
{
width = Convert.ToInt32(xPos + 30 + size.Width + 5);
}
if (string.Compare(layer.styleitem, "AUTO", true) == 0)
{
yPos += yOffset;
break;
}
}
}
}
}
yPos += yOffset;
}
if (numClasses > 1)
{
xPos -= xOffset;
}
}
}
height = yPos + 5;
}
g.Flush();
MemoryStream ms2 = new MemoryStream();
bmp.Save(ms2, System.Drawing.Imaging.ImageFormat.Png);
return(ms2.ToArray());
}
/// <summary>
/// Update the preview according to the changes
/// </summary>
private void UpdatePreview()
{
if (style != null && enablePreview)
{
styleObj pstyle = style.clone();
Update(pstyle);
classObj styleclass = new classObj(null);
styleclass.insertStyle(pstyle, -1);
using (classObj def_class = new classObj(null)) // for drawing legend images
{
using (imageObj image2 = def_class.createLegendIcon(
map, layer, pictureBoxPreview.Width, pictureBoxPreview.Height))
{
styleclass.drawLegendIcon(map, layer,
pictureBoxPreview.Width - 10, pictureBoxPreview.Height - 10, image2, 4, 4);
byte[] img = image2.getBytes();
using (MemoryStream ms = new MemoryStream(img))
{
pictureBoxPreview.Image = Image.FromStream(ms);
}
}
}
}
else
pictureBoxPreview.Image = null;
}