/// <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;
}
}
/// <summary>
/// Update the label object according to the current Editor state.
/// </summary>
/// <param name="label">The object to be updated.</param>
private void Update(labelObj label)
{
label.anglemode = (MS_POSITIONS_ENUM)comboBoxAngleMode.SelectedItem;
label.autominfeaturesize = checkBoxAutoMinFeatureSize.Checked ? mapscript.MS_TRUE : mapscript.MS_FALSE;
label.partials = checkBoxPartials.Checked ? mapscript.MS_TRUE : mapscript.MS_FALSE;
label.force = checkBoxForce.Checked ? mapscript.MS_TRUE : mapscript.MS_FALSE;
label.setExpression(this.textBoxExpression.Text);
label.setText(this.textBoxText.Text);
colorPickerColor.ApplyTo(label.color);
colorPickerOutlineColor.ApplyTo(label.outlinecolor);
colorPickerShadowColor.ApplyTo(label.shadowcolor);
label.size = int.Parse(textBoxSize.Text);
label.minsize = int.Parse(textBoxMinSize.Text);
label.maxsize = int.Parse(textBoxMaxSize.Text);
label.mindistance = int.Parse(textBoxMinDistance.Text);
label.offsetx = int.Parse(textBoxOffsetX.Text);
label.offsety = int.Parse(textBoxOffsetY.Text);
if (textBoxWrap.Text == "")
{
label.wrap = '\0';
}
else
{
label.wrap = Convert.ToChar(textBoxWrap.Text);
}
label.shadowsizex = int.Parse(textBoxShadowSizeX.Text);
label.shadowsizey = int.Parse(textBoxShadowSizeY.Text);
if (textBoxEncoding.Text == "")
{
label.encoding = null;
}
else
{
label.encoding = textBoxEncoding.Text;
}
label.angle = double.Parse(textBoxAngle.Text);
label.position = (int)comboBoxPosition.SelectedItem;
label.align = (int)comboBoxAlign.SelectedItem;
if ((string)(comboBoxFont.SelectedItem) == "(none)")
{
label.font = null;
}
else
{
label.font = (string)(comboBoxFont.SelectedItem);
}
label.priority = int.Parse(textBoxPriority.Text);
if (textBoxMaxScale.Text == "")
{
label.maxscaledenom = -1;
}
else
{
label.maxscaledenom = double.Parse(textBoxMaxScale.Text);
}
if (textBoxMinScale.Text == "")
{
label.minscaledenom = -1;
}
else
{
label.minscaledenom = double.Parse(textBoxMinScale.Text);
}
label.maxlength = int.Parse(textBoxMaxLength.Text);
label.minfeaturesize = int.Parse(textBoxMinFeatureSize.Text);
label.buffer = int.Parse(textBoxBuffer.Text);
label.repeatdistance = int.Parse(textBoxRepeatDistance.Text);
if (isStyleChanged)
{
// reconstruct styles
while (label.numstyles > 0)
{
label.removeStyle(0);
}
// insert styles in reverse order
for (int i = listViewStyles.Items.Count - 1; i >= 0; --i)
{
ListViewItem item = listViewStyles.Items[i];
styleObj style = (styleObj)item.Tag;
label.insertStyle(style.clone(), -1);
}
}
}
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);
}
}
}
}
}
