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6502bench/SourceGen/AppForms/EditAddress.cs
Andy McFadden e995747cb0 Code cleanup
Should be no change in behavior.

(issue #32) (issue #35) (issue #36)
2018-10-29 15:48:19 -07:00

79 lines
2.7 KiB
C#

/*
* Copyright 2018 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Diagnostics;
using System.Windows.Forms;
namespace SourceGen.AppForms {
public partial class EditAddress : Form {
/// <summary>
/// Address typed by user. Only valid after the dialog returns OK. Will be set to -1
/// if the user is attempting to delete the address.
/// </summary>
public int Address { get; private set; }
/// <summary>
/// Maximum allowed address value.
/// </summary>
private int mMaxAddressValue;
public EditAddress(int initialAddr, int maxAddressValue) {
InitializeComponent();
Address = -2;
mMaxAddressValue = maxAddressValue;
addressTextBox.Text = Asm65.Address.AddressToString(initialAddr, false);
}
private void EditAddress_Load(object sender, EventArgs e) {
addressTextBox.SelectAll();
}
/// <summary>
/// Handles a click on the OK button by setting the Address property to the
/// decoded value from the text field.
/// </summary>
private void okButton_Click(object sender, EventArgs e) {
if (addressTextBox.Text.Length == 0) {
Address = -1;
} else {
Asm65.Address.ParseAddress(addressTextBox.Text, mMaxAddressValue, out int addr);
Address = addr;
}
}
/// <summary>
/// Updates the OK button whenever the text changes. This works for all change sources,
/// including programmatic.
/// </summary>
private void addressTextBox_TextChanged(object sender, EventArgs e) {
UpdateOkEnabled();
}
/// <summary>
/// Enables or disables the OK button depending on whether the current input is
/// valid. We allow valid addresses and an empty box.
/// </summary>
private void UpdateOkEnabled() {
string text = addressTextBox.Text;
okButton.Enabled = (text.Length == 0) ||
Asm65.Address.ParseAddress(text, mMaxAddressValue, out int unused);
}
}
}