/// <summary>
/// Validates data entered in the GUI. If any values are invalid (non-numbers in
/// the X and Y fields, blank label field), the OK button is disabled and the field is highlighted in red. </summary>
/// <returns> true if all the text is valid. False if not. </returns>
private bool validateData()
{
string text = __textTextField.getText().Trim();
double x = -1;
bool badX = false;
double y = -1;
bool badY = false;
GRLimits limits = __parent.getDataLimits();
// make sure the X value is a double and that it is within the range
// of the X values in the data limits
try
{
x = (Convert.ToDouble(__xTextField.getText().Trim()));
if (x < limits.getLeftX() || x > limits.getRightX())
{
badX = true;
}
}
catch (Exception)
{
badX = true;
}
// if the X value is not valid, set the textfield red to show this.
// Otherwise, make sure the text has the proper background color.
if (badX)
{
__xTextField.setBackground(Color.red);
}
else
{
__xTextField.setBackground(__textFieldBackground);
}
// make sure the Y value is a double and that it is within the range
// of the Y values in the data limits
try
{
y = (Convert.ToDouble(__yTextField.getText().Trim()));
if (y < limits.getBottomY() || y > limits.getTopY())
{
badY = true;
}
}
catch (Exception)
{
badY = true;
}
// if the Y value is not valid, set the textfield red to show this.
// Otherwise, make sure the text has the proper background color.
if (badY)
{
__yTextField.setBackground(Color.red);
}
else
{
__yTextField.setBackground(__textFieldBackground);
}
// make sure that the text is not an empty string. If it is, make
// its textfield red. Otherwise, the textfield will have the normal textfield color.
bool badText = false;
if (text.Trim().Equals(""))
{
badText = true;
__textTextField.setBackground(Color.red);
}
else
{
__textTextField.setBackground(__textFieldBackground);
}
// make sure that the font size is an integer greater than 0. If not,
// set its textfield to red. Otherwise the textfield will have a normal textfield color.
bool badFontSize = false;
int size = 0;
try
{
size = (Convert.ToInt32(__fontSizeTextField.getText().Trim()));
}
catch (Exception)
{
badFontSize = true;
}
if (size <= 0)
{
badFontSize = true;
}
if (badFontSize)
{
__fontSizeTextField.setBackground(Color.red);
}
else
{
__fontSizeTextField.setBackground(__textFieldBackground);
}
if (!badText && !badX && !badY && !badFontSize)
{
// if all the data validated properly then mark whether the data are dirty or not.
// OK is only active if the data are valid and something is dirty.
bool dirty = false;
PropList p = (PropList)__node.getAssociatedObject();
string temp = p.getValue("Text").Trim();
if (!temp.Equals(__textTextField.getText().Trim()))
{
dirty = true;
}
string val = p.getValue("Point").Trim();
temp = StringUtil.getToken(val, ",", 0, 0);
if (!temp.Equals(__xTextField.getText().Trim()))
{
dirty = true;
}
temp = StringUtil.getToken(val, ",", 0, 1);
if (!temp.Equals(__yTextField.getText().Trim()))
{
dirty = true;
}
temp = p.getValue("OriginalFontSize").Trim();
if (!temp.Equals(__fontSizeTextField.getText().Trim()))
{
dirty = true;
}
temp = p.getValue("FontName").Trim();
if (!temp.Equals(__fontNameComboBox.getSelected().Trim()))
{
dirty = true;
}
temp = p.getValue("FontStyle").Trim();
if (!temp.Equals(__fontStyleComboBox.getSelected().Trim()))
{
dirty = true;
}
temp = p.getValue("TextPosition").Trim();
if (!temp.Equals(__textPositionComboBox.getSelected().Trim()))
{
dirty = true;
}
__applyButton.setEnabled(dirty);
__okButton.setEnabled(dirty);
return(true);
}
else
{
// if the data aren't valid, the ok button is not enabled
__applyButton.setEnabled(false);
__okButton.setEnabled(false);
return(false);
}
}