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BackgroundScaleForm.cs
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BackgroundScaleForm.cs
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/*
Maneubo is an application that provides a virtual maneuvering board and target
motion analysis.
http://www.adammil.net/Maneubo
Copyright (C) 2011-2020 Adam Milazzo
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
using System.Windows.Forms;
namespace Maneubo
{
partial class BackgroundScaleForm : DataForm
{
public BackgroundScaleForm()
{
InitializeComponent();
}
public BackgroundScaleForm(double pixels, double meters, UnitSystem unitSystem) : this()
{
lblPixels.Text = pixels.ToString("0.##") + " pixels represents...";
txtLength.Text = ManeuveringBoard.GetDistanceString(meters, unitSystem);
txtLength.Tag = meters;
txtLength.WasChanged = false;
this.unitSystem = unitSystem;
}
public double Distance
{
get
{
double distance;
if(txtLength.WasChanged) TryParseLength(txtLength.Text, unitSystem, out distance);
else distance = (double)txtLength.Tag;
return distance;
}
}
void btnOK_Click(object sender, System.EventArgs e)
{
double length;
if(txtLength.WasChanged)
{
if(TryParseLength(txtLength.Text, unitSystem, out length))
{
txtLength.Tag = length;
}
else
{
if(string.IsNullOrEmpty(txtLength.Text.Trim())) ShowRequiredMessage("Distance");
else ShowInvalidLength(txtLength.Text);
return;
}
}
DialogResult = DialogResult.OK;
}
readonly UnitSystem unitSystem;
}
}