/// <summary>
/// Sets new values to this cursor pos
/// </summary>
/// <returns>true, when values where other than before</returns>
public bool SetPos(System.Xml.XmlNode actualNode, XmlCursorPositions posAtNode, int posInTextNode = 0)
{
bool changed;
if (actualNode != this.ActualNode)
{
changed = true;
}
else
{
if (posAtNode != this.PosOnNode)
{
changed = true;
}
else
{
if (posInTextNode != this.PosInTextNode)
{
changed = true;
}
else
{
changed = false;
}
}
}
this.ActualNode = actualNode;
this.PosOnNode = posAtNode;
this.PosInTextNode = posInTextNode;
return(changed);
}
public async Task SetPositions(XmlNode bothNodes, XmlCursorPositions posAtBothNodes, int textPosInBothNodes, bool throwChangedEventWhenValuesChanged)
{
await this.SetPositions(
bothNodes, posAtBothNodes, textPosInBothNodes,
bothNodes, posAtBothNodes, textPosInBothNodes,
throwChangedEventWhenValuesChanged);
}
/// <summary>
/// Sets node and position simultaneously and thus triggers only one Changed-Event instead of two
/// </summary>
public async Task SetBothPositionsAndFireChangedEventIfChanged(XmlNode node, XmlCursorPositions posOnNode, int posInTextnode)
{
bool changed =
node != StartPos.ActualNode || posOnNode != StartPos.PosOnNode || posInTextnode != StartPos.PosInTextNode ||
node != EndPos.ActualNode || posOnNode != EndPos.PosOnNode || posInTextnode != EndPos.PosInTextNode;
this.SetBotPositionsWithoutChangedEvent(node, posOnNode, posInTextnode);
if (changed)
{
await this.ChangedEvent.Trigger(EventArgs.Empty);
}
}
public async Task SetPositions(
XmlNode startNode, XmlCursorPositions posAtStartNode, int textPosInStartNode,
XmlNode endNode, XmlCursorPositions posAtEndNode, int textPosInEndNode, bool throwChangedEventWhenValuesChanged)
{
var changed = false;
if (throwChangedEventWhenValuesChanged)
{
changed = (startNode != this.StartPos.ActualNode || posAtStartNode != this.StartPos.PosOnNode || textPosInStartNode != this.StartPos.PosInTextNode ||
endNode != this.EndPos.ActualNode || posAtEndNode != this.EndPos.PosOnNode || textPosInEndNode != this.EndPos.PosInTextNode);
}
this.StartPos.SetPos(startNode, posAtStartNode, textPosInStartNode);
this.EndPos.SetPos(endNode, posAtEndNode, textPosInEndNode);
if (changed)
{
await ChangedEvent.Trigger(EventArgs.Empty);
}
}
/// <summary>
/// Sets the cursor positions for corresponding mouse actions: For MouseDown StartAndEndpos, for Move and Up only the endpos
/// </summary>
public async Task SetCursorByMouseAction(XmlNode xmlNode, XmlCursorPositions cursorPos, int posInLine, MouseClickActions action)
{
switch (action)
{
case MouseClickActions.MouseDown:
// move the cursor to the new position
await SetPositions(xmlNode, cursorPos, posInLine, throwChangedEventWhenValuesChanged : true);
break;
case MouseClickActions.MouseDownMove:
case MouseClickActions.MouseUp:
// Set end of the select cursor
if (EndPos.SetPos(xmlNode, cursorPos, posInLine))
{
await this.ForceChangedEvent();
}
break;
}
}
public void SetBotPositionsWithoutChangedEvent(XmlNode node, XmlCursorPositions posAmNode, int posImTextnode)
{
this.StartPos.SetPos(node, posAmNode, posImTextnode);
this.EndPos.SetPos(node, posAmNode, posImTextnode);
}
/// <summary>
/// Sets the cursor positions for corresponding mouse actions: For MausDown StartUndEndpos, for Move and Up only the endpos
/// </summary>
public async Task SetCursorByMouseAction(XmlNode xmlNode, XmlCursorPositions cursorPos, MouseClickActions action)
{
await SetCursorByMouseAction(xmlNode, cursorPos, 0, action);
}
/// <summary>
/// Sets node and position simultaneously and thus triggers only one Changed-Event instead of two
/// </summary>
public async Task SetBothPositionsAndFireChangedEventIfChanged(XmlNode node, XmlCursorPositions posAmNode)
{
await SetBothPositionsAndFireChangedEventIfChanged(node, posAmNode, 0);
}
public XmlCursorPos()
{
this.ActualNode = null; // no node selected
this.PosOnNode = XmlCursorPositions.CursorOnNodeStartTag;
this.PosInTextNode = 0;
}
