private void EditLabelStyle(RuleModel rule)
{
PointRuleModel pr = rule as PointRuleModel;
LineRuleModel lr = rule as LineRuleModel;
AreaRuleModel ar = rule as AreaRuleModel;
UserControl uc = null;
/*
* if (m_owner.SelectedClass == null)
* {
* MessageBox.Show(Strings.NoFeatureClassAssigned);
* return;
* }*/
var previewScale = 0.0;
if (_parentScaleRange.MinScale.HasValue)
{
previewScale = _parentScaleRange.MinScale.Value;
}
ILayerStylePreviewable prev = new LayerStylePreviewable(_edSvc.EditedResourceID,
previewScale,
80,
40,
"PNG", //NOXLATE
rule.Index);
//TODO: This is obviously a mess and could do with some future cleanup, but the idea here should be
//easy to understand. Each primitive basic style (that's not a label) has 3 actions.
// - Commit (When user clicks OK on dialog)
// - Rollback (When user clicks Cancel on dialog)
// - Edit Commit (When user invokes refresh)
//Those that support GETLEGENDIMAGE-based previews will be passed an edit commit action. Invoking the
//edit commit action will update the session-based layer with this edit-copy rule, allowing for the changes
//to be reflected when we do the GETLEGENDIMAGE call
//
//Labels are exempt as those previews can be sufficiently simulated with System.Drawing API
var vl = (IVectorLayerDefinition)_editedLayer.SubLayer;
ClassDefinition clsDef = GetLayerClass();
Action commit = null;
Action rollback = null;
ITextSymbol labelToEdit = null;
if (pr != null)
{
labelToEdit = pr.GetLabelStyle();
}
else if (lr != null)
{
labelToEdit = lr.GetLabelStyle();
}
else if (ar != null)
{
labelToEdit = ar.GetLabelStyle();
}
m_origLabel = labelToEdit;
m_editLabel = (labelToEdit == null) ? null : (ITextSymbol)labelToEdit.Clone();
uc = new FontStyleEditor(_edSvc, clsDef, vl.ResourceId);
((FontStyleEditor)uc).Item = m_editLabel;
if (uc != null)
{
EditorTemplateForm dlg = new EditorTemplateForm();
dlg.ItemPanel.Controls.Add(uc);
uc.Dock = DockStyle.Fill;
dlg.RefreshSize();
var res = dlg.ShowDialog(this);
if (res == DialogResult.OK)
{
if (commit != null)
{
commit.Invoke();
}
ITextSymbol editedLabel = ((FontStyleEditor)uc).Item;
if (pr != null)
{
pr.SetLabelStyle(editedLabel);
_edSvc.HasChanged();
}
else if (lr != null)
{
lr.SetLabelStyle(editedLabel);
_edSvc.HasChanged();
}
else if (ar != null)
{
ar.SetLabelStyle(editedLabel);
_edSvc.HasChanged();
}
}
else if (res == DialogResult.Cancel)
{
if (rollback != null)
{
rollback.Invoke();
}
}
}
}